A high conversion rate powdered activated carbon regeneration system

Abstract

The application relates to the field of active carbon treatment equipment, in particular to a high-conversion-rate powdered active carbon regeneration system which comprises a regeneration furnace and further comprises a feeding device, the feeding device comprises a screw conveyor and a storage bin, the discharge port of the screw conveyor is connected with the feeding port of the regeneration furnace, the discharge port of the screw conveyor and the feeding port of the regeneration furnace are sealed, the storage bin is hollow and filled with materials accounting for at least 1 / 3 of the volume of the storage bin, the feeding port of the screw conveyor is communicated with the inside of the storage bin, and a material level sensor is arranged on the storage bin and used for detecting the material level in the storage bin. The application has the effect of improving the conversion rate in the active carbon regeneration process.

Description

Technical Field

[0001] This application relates to the technical field of activated carbon treatment equipment, and in particular to a high-conversion-rate powdered activated carbon regeneration system. Background Technology

[0002] Activated carbon is made from carbonaceous raw materials such as wood and coal. It has a well-developed porous structure and strong adsorption capacity, and is widely used for filtration in waste gas treatment. After adsorbing a certain amount of impurities, activated carbon reaches saturation, and its adsorption capacity decreases. At this point, regeneration is required to restore its activity.

[0003] Activated carbon regeneration is usually achieved by heating the activated carbon in a regeneration furnace, causing the adsorbed organic matter to carbonize and decompose at high temperatures, eventually turning it into molecules smaller than the pore diameter of the activated carbon that escape, thus restoring the activity of the activated carbon.

[0004] Typically, a hopper is installed at the feed inlet of the regeneration furnace to guide activated carbon powder into the furnace. During heating, activated carbon powder is prone to deflagration, which consumes activated carbon and results in a low conversion rate during regeneration, hindering the improvement of regeneration quality and efficiency. Summary of the Invention

[0005] In order to improve the conversion rate in the activated carbon regeneration process, this application provides a high conversion rate powdered activated carbon regeneration system.

[0006] The high-conversion-rate powdered activated carbon regeneration system provided in this application adopts the following technical solution:

[0007] A high-conversion-rate powdered activated carbon regeneration system includes a regeneration furnace and a feeding device. The feeding device includes a screw conveyor and a storage silo. The discharge port of the screw conveyor is connected to the inlet of the regeneration furnace, and the discharge port of the screw conveyor and the inlet of the regeneration furnace are sealed. The storage silo is hollow and filled with material to at least 1 / 3 of its volume. The inlet of the screw conveyor is connected to the interior of the storage silo. A level sensor is installed on the storage silo to detect the material level in the storage silo.

[0008] By adopting the above technical solution, the storage silo is always partially filled with material, which, under its own action, can seal the feed inlet of the screw conveyor, preventing air from entering the regeneration furnace. During the activated carbon regeneration process, the screw conveyor actively transports the material to the regeneration furnace, realizing the feeding of material into the regeneration furnace. Because external air is blocked from entering the regeneration furnace, the phenomenon of deflagration of activated carbon powder in the regeneration furnace is reduced, thereby improving the conversion rate of activated carbon regeneration. At the same time, the material level detection monitors the material level in the storage silo in real time, realizing the control of the material in the discharge plant and improving the stable sealing of the screw conveyor feed inlet.

[0009] Optionally, the feeding device further includes an open box and a suction feeding assembly. The open box is placed on the ground and has an opening on the side facing away from the ground for holding materials. The suction feeding assembly is used to suck the materials in the open box into the storage bin.

[0010] By adopting the above technical solution, the volume of the storage silo can be reduced by transferring materials through an open box, thereby reducing the pressure on the screw conveyor and improving its service life.

[0011] Optionally, the suction and feeding assembly includes a cyclone dust collector and a suction fan. The ash discharge port of the cyclone dust collector is connected to the inside of the storage silo. The air inlet of the suction fan is connected to the air outlet of the cyclone dust collector. A suction pipe is provided at the air inlet of the cyclone dust collector, and the end of the suction pipe away from the cyclone dust collector extends into the open box.

[0012] By adopting the above technical solution, the exhaust fan operates, generating negative pressure in the cyclone filter. Subsequently, the suction pipe draws material from the open box into the cyclone filter. The cyclone filter filters the material to achieve solid-gas separation, and then the material enters the storage silo from the ash discharge port, realizing automatic feeding of material in the storage silo.

[0013] Optionally, the feeding device further includes a pulse dust collector, which is disposed between the fan and the cyclone dust collector. The air inlet of the pulse dust collector is connected to the air outlet of the cyclone dust collector, and the air inlet of the exhaust fan is connected to the air outlet of the pulse dust collector.

[0014] By adopting the above technical solution, the exhaust fan operates, and after the cyclone dust collector removes dust, the air mixed with some dust enters the pulse dust collector. The pulse dust collector filters the air again before it is discharged, reducing material waste and dust generation.

[0015] Optionally, the open box is provided with an adjustment assembly, the adjustment assembly including a first sliding block that is slidably connected to the open box in a horizontal direction, and the suction tube is a flexible tube, with one end near the open box connected to the first sliding block.

[0016] By adopting the above technical solution, the suction tube is set as a flexible tube, and the first sliding block can drive the end of the suction tube to move when it moves, thereby sucking up materials at different positions.

[0017] Optionally, the adjustment assembly further includes a second sliding block, which is slidably connected to the first sliding block in a direction that is horizontal and perpendicular to the sliding direction of the first sliding block, and the end of the suction pipe near the open box is connected to the second sliding block.

[0018] By adopting the above technical solution, the second sliding block, in conjunction with the first sliding block, can achieve movement in multiple directions at the end of the suction tube, making the suction tube more comprehensive in its ability to draw materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of the feeding device according to an embodiment of this application.

[0021] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of section A.

[0022] Reference numerals: 1. Recycling furnace; 2. Feeding device; 21. Screw conveyor; 22. Storage silo; 23. Open box; 24. Suction feeding assembly; 241. Exhaust fan; 242. Cyclone dust collector; 243. Pulse dust collector; 25. Suction pipe; 3. Adjustment assembly; 31. First sliding block; 32. Second sliding block; 33. Sliding groove; 34. Mounting hole. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0024] This application discloses a high-conversion-rate powdered activated carbon regeneration system.

[0025] Reference Figure 1 and Figure 2 A high-conversion-rate powdered activated carbon regeneration system includes a regeneration furnace 1 and a feeding device 2. The feeding device 2 includes a screw conveyor 21 and a storage silo 22. The discharge port of the screw conveyor 21 is connected to the inlet of the regeneration furnace 1, and the discharge port of the screw conveyor 21 and the inlet of the regeneration furnace 1 are sealed together. The storage silo 22 is hollow inside and has a discharge port at the bottom, which is connected to the inlet of the screw conveyor 21, and the discharge port and the inlet of the screw conveyor 21 are sealed together. During the activated carbon regeneration process, the storage silo 22 is always kept at least 1 / 3 full of material (in this embodiment, the material is powdered activated carbon). After the powdered activated carbon accumulates, the inlet of the screw conveyor 21 is sealed, thereby isolating the interior of the regeneration furnace 1 from the outside air, reducing the occurrence of outside air entering the interior of the regeneration furnace 1, thereby reducing the possibility of deflagration of the activated carbon inside the regeneration furnace 1 and improving the conversion rate of activated carbon regeneration.

[0026] Reference Figure 2 and Figure 3A level sensor (not shown in the figure) is installed on the silo to detect the material level in the silo. After detecting the material level, the level sensor transmits the information to the industrial control computer, which controls the screw conveyor 21 to operate. At the same time, the screw conveyor stops operating when the material level is low, so that the material level in the storage silo 22 is maintained at a certain height, ensuring the sealing effect of the material on the feed inlet of the screw conveyor 21.

[0027] Reference Figure 2 and Figure 3 The feeding device 2 also includes an open box 23 and a suction feeding assembly 24. The open box 23 is hollow inside and has an opening on the side facing away from the ground for temporary storage of materials. The open box 23 is placed on the ground so that workers can use transport equipment to put materials into the open box 23 for temporary storage. The suction feeding assembly 24 is used to suck the materials in the open box 23 into the discharge box to realize automatic feeding of materials in the storage box.

[0028] Reference Figure 2 and Figure 3 The suction and feeding assembly 24 includes a blower 241 and a cyclone dust collector 242. In this embodiment, the cyclone dust collector 242 is a CLT / A-4 model manufactured by Guohai Filter. The inlet of the blower 241 (TWYX-PF100-05) is connected to the outlet of the cyclone dust collector 242 to create negative pressure inside the cyclone dust collector 242. A suction pipe 25 is provided at the inlet of the cyclone dust collector 242, with one end connected to the inlet and the other end extending into the open box 23. The ash discharge port of the cyclone dust collector 242 is connected to the feed inlet of the storage silo 22.

[0029] Reference Figure 2 and Figure 3 During activated carbon regeneration, the fan operates, drawing air out of the cyclone dust collector 242 and creating negative pressure inside. Under this negative pressure, the suction pipe 25 draws material from the open box 23 into the cyclone dust collector 242. Subsequently, the material moves downwards into the storage silo 22 under gravity, achieving separation of gas and solids, and simultaneously enabling automatic feeding of material into the storage silo 22.

[0030] Reference Figure 2 and Figure 3The feeding device 2 also includes a pulse dust collector 243, which is located between the fan and the cyclone dust collector 242. It should be understood that the pulse dust collector 243 typically includes a housing and filter bags. The filter bags divide the housing into two cavities: the cavity facing away from the ground is the clean air cavity, and the cavity closer to the ground is the mixing air cavity. An air outlet is provided on the side wall of the housing, which is connected to the air inlet of the exhaust fan 241. An air inlet is provided on the side of the housing closer to the ground, which communicates with the mixing air cavity and also with the interior of the storage silo 22.

[0031] Reference Figure 2 and Figure 3 During the activated carbon regeneration process, the material mixed with air enters the cyclone filter for initial filtration, and then some of the powder material mixed with air enters the pulse dust collector 243 for further filtration. This reduces dust generation and material waste, thus saving resources.

[0032] Reference Figure 2 and Figure 3 An adjustment assembly 3 is provided on the open box 23. The adjustment assembly 3 includes a first sliding block 31 and a second sliding block 32. The first sliding block 31 is slidably connected to the opening of the open box 23 in a horizontal direction, and the second sliding block 32 is slidably connected to the first sliding block 31 in a direction that is horizontal and perpendicular to the sliding direction of the first sliding block 31. The suction tube 25 is a flexible hose, and its end is fixedly connected to the second sliding block 32. By sliding the first sliding block 31 and the second sliding block 32, the suction tube 25 can be driven to move in the horizontal direction, thereby comprehensively sucking up the material in the open box 23.

[0033] Reference Figure 2 and Figure 3 The first sliding block 31 has a rectangular plate-like structure. The open box 23 has sliding grooves 33 on the side walls at both ends of the first sliding block 31. The two ends of the first sliding block 31 are slidably engaged in the sliding grooves 33 to realize the sliding connection between the first sliding block 31 and the open box 23.

[0034] Reference Figure 2 and Figure 3 The first sliding block 31 has a mounting hole 34 parallel to its length. The second sliding block 32 is slidably fitted into the mounting hole 34, achieving a sliding fit between the first sliding block 31 and the second sliding block 32. The second sliding block 32 has an insertion hole corresponding to the suction tube 25, and the end of the suction tube 25 is inserted into the insertion hole, connecting the suction tube 25 to the second sliding block 32. In this embodiment, both the first sliding block 31 and the second sliding block 32 are driven by a lead screw.

[0035] The implementation principle of a high-conversion-rate powdered activated carbon regeneration system in this application embodiment is as follows: During the activated carbon regeneration process, a certain material level is always maintained in the storage silo 22. By utilizing the properties of the powdered activated carbon itself, the feed inlet of the screw conveyor 21 is blocked, thereby isolating the inside of the regeneration furnace 1 from the outside air, reducing the possibility of external air entering the regeneration furnace 1 and causing the activated carbon to explode, thus improving the conversion rate of activated carbon regeneration and production efficiency.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-conversion-rate powdered activated carbon regeneration system, comprising a regeneration furnace (1), characterized in that: It also includes a feeding device (2), which includes a screw conveyor (21) and a storage bin (22). The discharge port of the screw conveyor (21) is connected to the inlet of the recycling furnace (1). The discharge port of the screw conveyor (21) and the inlet of the recycling furnace (1) are sealed. The storage bin (22) is hollow inside and filled with material at least 1 / 3 of the volume of the storage bin (22). The inlet of the screw conveyor (21) is connected to the inside of the storage bin (22). A material level sensor is installed on the storage bin (22) to detect the material level in the storage bin (22).

2. The high-conversion-rate powdered activated carbon regeneration system according to claim 1, characterized in that: The feeding device (2) also includes an open box (23) and a suction feeding assembly (24). The open box (23) is placed on the ground and has an opening on the side away from the ground for holding materials. The suction feeding assembly (24) is used to suck the materials in the open box (23) into the storage bin (22).

3. The high-conversion-rate powdered activated carbon regeneration system according to claim 2, characterized in that: The suction and feeding assembly (24) includes a cyclone dust collector (242) and a blower (241). The ash discharge port of the cyclone dust collector (242) is connected to the inside of the storage bin (22). The air inlet of the blower (241) is connected to the air outlet of the cyclone dust collector (242). A suction pipe (25) is provided at the air inlet of the cyclone dust collector (242). The end of the suction pipe (25) away from the cyclone dust collector (242) extends into the open box (23).

4. The high-conversion-rate powdered activated carbon regeneration system according to claim 3, characterized in that: The feeding device (2) further includes a pulse dust collector (243), which is located between the fan and the cyclone dust collector (242). The air inlet of the pulse dust collector (243) is connected to the air outlet of the cyclone dust collector (242), and the air inlet of the exhaust fan (241) is connected to the air outlet of the pulse dust collector (243).

5. The high-conversion-rate powdered activated carbon regeneration system according to claim 3, characterized in that: An adjustment assembly (3) is provided on the open box (23). The adjustment assembly (3) includes a first sliding block (31) that is slidably connected to the open box (23) in the horizontal direction. The suction tube (25) is a flexible tube, and one end near the open box (23) is connected to the first sliding block (31).

6. The high-conversion-rate powdered activated carbon regeneration system according to claim 5, characterized in that: The adjustment component (3) further includes a second sliding block (32), which is slidably connected to the first sliding block (31) in a direction that is horizontal and perpendicular to the sliding direction of the first sliding block (31). The end of the suction tube (25) near the open box (23) is connected to the second sliding block (32).

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