Granular activated carbon production and preparation device with low energy consumption and low emission and recycling of waste heat and exhaust gas

Abstract

The invention relates to the technical field of granular activated carbon production, in particular to a low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production and preparation device which comprises a base, a granulation assembly and a drying assembly, the granulation assembly comprises an extrusion cylinder and a spiral feeding rod, and the extrusion cylinder is fixed to the base and provided with a feeding port and a discharging port; the spiral feeding rod is rotatably arranged in the extrusion cylinder; the drying assembly comprises a receiving and feeding part, a spiral discharging part and a circulating heating part, and the spiral discharging part is fixed to the spiral feeding rod and provided with a spiral discharging channel. The granulation assembly and the drying assembly are integrated on one device, the prepared granular activated carbon can be directly dried, the time for transferring materials is effectively saved, and the efficiency for preparing the granular activated carbon is improved; the integrity of the granular activated carbon structure is not easily damaged in the drying process, and the quality of the finished granular activated carbon product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of granular activated carbon production, and in particular to a low-energy-consumption, low-emission, waste heat and waste gas recycling granular activated carbon production and preparation device. Background Art

[0002] Activated carbon is a porous adsorption material that can effectively adsorb organic pollutants from waste gas and is widely used in environmental protection, chemical industry, energy and other fields. Activated carbon is usually made into granular form, and the preparation of granular activated carbon generally uses a screw extrusion granulator. Currently, due to the high water content of activated carbon granules formed by the screw extrusion granulator (wet granulation), they need to be transferred to a dryer for drying to improve the quality of the granular activated carbon. In other words, most existing screw extrusion granulators do not have a drying function. Granulation and drying need to be carried out on two devices. The transfer of materials between the two devices will result in limited production efficiency. In addition, when using existing dryers for granular activated carbon, in order to speed up the drying process, stirring blades are used to increase the fluidity of the granular activated carbon. However, this stirring method will destroy the integrity of the granular activated carbon structure and reduce its quality. In response to the above problems, the present invention proposes a low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a low-energy consumption, low-emission, waste heat and waste gas recycling granular activated carbon production and preparation device, which can directly dry the prepared granular activated carbon, effectively saving the time for transporting materials and improving the efficiency of preparing granular activated carbon; and the integrity of the granular activated carbon structure is not easily destroyed during the drying process, thereby improving the quality of the finished granular activated carbon product.

[0004] In order to achieve the above objectives, the present invention provides a low-energy consumption, low-emission, waste heat and waste gas recycling granular activated carbon production and preparation device, which is used to solve the problems raised in the above background technology.

[0005] The present invention is achieved through the following technical solutions: A low-energy consumption, low-emission, waste heat and waste gas recycling granular activated carbon production and preparation device, including a base, a granulation component and a drying component, the granulation component including an extrusion barrel and a spiral feeding rod, the extrusion barrel is fixed on the base and has an inlet and a discharge hole; the spiral feeding rod is rotatably arranged in the extrusion barrel; the drying component includes a feeding part, a spiral discharge part and a circulation heating part, the spiral discharge part is fixed to the spiral feeding rod and has a spiral discharge channel; the feeding part is used to transfer the granular activated carbon discharged from the discharge hole to the feed end of the spiral discharge channel, and the circulation heating part is used to heat the granular activated carbon in the spiral discharge channel.

[0006] Optionally, the material receiving and feeding part includes a feeding pipe, a material receiving bin and a material guiding trough, the feeding pipe is fixedly connected between the spiral discharging part and the spiral feeding rod, and the feeding pipe has a discharge cavity connected to the feed end of the spiral discharge channel; the material receiving bin is a hollow annular structure on the inside and is sleeved on the outside of the feeding pipe; the material guiding trough is fixedly connected between the inner wall of the material receiving bin and the material receiving pipe, and the material guiding trough is connected to the discharge cavity.

[0007] Optionally, the discharge cavity is a conical cavity, the end of the discharge cavity with a larger diameter is connected to the feed end of the spiral discharge channel, and the end of the discharge cavity with a smaller diameter is connected to the guide trough.

[0008] Optionally, the spiral discharge part includes a spiral discharge net and a first end plate and a second end plate respectively fixed at both ends of the discharge net, and the spiral discharge channel is formed between the discharge net, the first end plate and the second end plate.

[0009] Optionally, spiral embedding grooves are provided on opposite sides of the first end plate and the second end plate, and the first end plate and the second end plate are detachably connected via fasteners.

[0010] Optionally, an inlet hole is provided at a position of the second end plate corresponding to the feed end of the spiral discharge channel, and an outlet hole is provided at a position of the second end plate corresponding to the discharge end of the spiral discharge channel. One end of the discharge net close to the discharge end of the spiral discharge channel is fixedly connected to an arc plate through a ball dividing net, and the aperture of the ball dividing net is larger than the aperture of the discharge net; the circulating heating part includes a heat-conducting ball, and the diameter of the heat-conducting ball is smaller than the diameter of the inlet hole and the outlet hole.

[0011] Optionally, the ball distribution net is elastic, and the circulating heating part also includes a support seat, a screen pressing component and a heating box. The support seat is fixed on the base, and the heating box is elastically connected to the support seat through an elastic element. A heating element is arranged at the bottom of the heating box, and a ball outlet corresponding to the position of the inflow hole is arranged on the bottom side wall of the heating box. A return flow port corresponding to the position of the outflow hole is arranged on the top of the heating box. A ball partition plate is arranged in the heating box, and the ball partition plate divides the interior of the heating box into a volleyball channel. The ball outlet and the return flow port are respectively arranged at the two ends of the volleyball channel, and the screen pressing component is arranged on the outside of the discharge net.

[0012] Optionally, the pressing net component includes a pressing rod and a pressing shaft, the first end of the pressing rod is fixed to the support seat, the second end of the pressing rod extends to the outside of the discharge net, the pressing shaft is arranged parallel to the discharge net, and the pressing shaft is rotatably connected to the second end of the pressing rod. The pressing shaft is a conical shaft, and the end of the pressing shaft close to the outflow hole has a larger diameter.

[0013] Optionally, a limiter is provided between the support base and the heating box, and the limiter is used to limit the minimum distance between the support base and the heating box.

[0014] Optionally, the low-energy consumption and low-emission waste heat and exhaust gas recycling granular activated carbon production and preparation device also includes a material receiving and dust removal component, which includes a material receiving box, a dust removal box, a dust removal net and a blower. The material receiving box is arranged below the discharge net, and the dust removal box is arranged on one side of the material receiving box. The dust removal net is arranged in the dust removal box and divides the interior of the dust removal box into two parts, an upper and a lower part. The dust removal box has a dust inlet facing the discharge net, and the dust inlet is connected to the upper part of the interior of the dust removal box. The air inlet end of the blower is connected to the lower part of the interior of the dust removal box.

[0015] Compared with the prior art, the present invention provides a low-energy consumption, low-emission, waste heat and waste gas recycling granular activated carbon production and preparation device, which has the following beneficial effects: 1. By integrating the granulation component and the drying component into one device, the present invention can directly dry the prepared granular activated carbon, effectively saving the time of transporting materials and improving the efficiency of preparing granular activated carbon. In addition, since the granular activated carbon is heated and dried while rolling in the spiral discharge channel, this heating method not only prolongs the heating time and improves the heating uniformity, but also is less likely to damage the integrity of the granular activated carbon structure, thereby improving the quality of the finished granular activated carbon. 2. The feeding and receiving part of the present invention includes a feeding pipe, a receiving bin and a guide trough, so that the granular activated carbon discharged from the discharge hole can be continuously and automatically fed into the feeding end of the spiral discharge channel without adding additional driving equipment; 3. The present invention can achieve the purpose of uniformly heating the granular activated carbon in the spiral discharge channel by using the inflow hole, outflow hole, ball distribution net, curved plate and heat-conducting balls in coordination with each other; 4. The present invention utilizes the coordinated use of the inlet and outlet holes, ball separation net, curved plate, and heat-conducting balls, and adds a support base, a net pressing component, a heating box, an elastic element, a ball separation plate, and a heating element. This allows the granular activated carbon in the spiral discharge channel to be uniformly heated, while also achieving automatic circulation of the heat-conducting balls in the spiral discharge channel and ensuring that the heat-conducting balls are smoothly heated to the specified temperature. 5. The present invention can limit the maximum distance that the heating box can move downward by setting a limiter, ensuring that the ball outlet of the heating box will not be lower than the inflow hole on the second end plate, so as to avoid the heat-conducting balls from being unable to circulate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of one axis side of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A; Figure 3 This is another schematic diagram of the axial side structure of the present invention; Figure 4 This is a schematic diagram of the one-axis structure of the spiral discharging part and the circulating heating part of the present invention; Figure 5 This is another axial structural diagram of the spiral discharging part and the circulating heating part of the present invention; Figure 6 It is a structural schematic diagram of the discharge net, ball distribution net and curved plate of the present invention; Figure 7 This is a schematic structural diagram of the circulating heating part of the present invention; Figure 8 It is a schematic diagram of the cross-section structure of the material receiving and delivering part of the present invention.

[0017] In the figure: 100, base; 200, granulation component; 210, extruder; 220, spiral feeding rod; 221, scraper rod; 230, feeding port; 240, discharge hole; 250, motor; 260, discharge plate; 300, drying component; 310, feeding and receiving part; 311, feeding pipe; 3110, discharge cavity; 312, receiving bin; 313, guide trough; 320, spiral discharge part; 321, discharge net; 3210, ball distribution net; 3211, arc plate; 322, first end plate; 323, second end plate; 3230, inflow hole; 3231, outflow hole; 32 4. Embedded groove; 325. Connecting shaft; 326. Fastening bolt; 330. Circulating heating part; 331. Heat-conducting ball; 332. Support seat; 333. Pressing net component; 3330. Pressing rod; 3331. Pressing shaft; 334. Heating box; 3340. Ball outlet; 3341. Return outlet; 3342. Ball partition; 3343. Volleyball channel; 335. Spring; 336. Spring column; 337. Heating element; 338. Limiting column; 400. Material receiving and dust removal assembly; 410. Material receiving box; 420. Dust removal box; 421. Dust inlet; 430. Dust removal net; 440. Blower. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: See Figures 1 to 8 According to an embodiment of the present invention, a low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device is provided. The granular activated carbon production and preparation device may include a base 100, a granulation component 200 and a drying component 300, wherein the granulation component 200 includes an extrusion barrel 210 and a spiral feeding rod 220, the extrusion barrel 210 is fixed on the base 100 and has an inlet 230 and a discharge hole 240; the spiral feeding rod 220 is rotatably arranged in the extrusion barrel 210, and the method of driving the spiral feeding rod 220 to rotate may be a motor 2 50 is driven, and when the spiral feeding rod 220 rotates, the spiral blades on its outside can push the material toward the discharge hole 240; the drying component 300 includes a feeding part 310, a spiral discharge part 320 and a circulating heating part 330, and the spiral discharge part 320 is fixed to the spiral feeding rod 220 and has a spiral discharge channel; the feeding part 310 is used to transfer the granular activated carbon discharged from the discharge hole 240 to the feed end of the spiral discharge channel, and the circulating heating part 330 is used to heat the granular activated carbon in the spiral discharge channel.

[0020] The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device using the above-mentioned structure, in the first step, uses the granulation component 200 to prepare granular activated carbon. Specifically, first, activated carbon powder, adhesive and other necessary raw materials for preparing granular activated carbon are added into the extrusion barrel 210 through the feed port 230, and then the spiral feeding rod 220 is rotated. The spiral feeding rod 220 is used to fully mix these raw materials together and push them toward the discharge hole 240. These raw materials are finally discharged from the discharge hole 240 in the form of cylindrical particles, thereby preparing granular activated carbon. Since the water content of the granular activated carbon is still relatively large at this time; therefore, in the second step, the granular activated carbon prepared in the first step is dried using the drying component 300. Specifically, the granular activated carbon discharged from the discharge hole 240 is delivered to the feed end of the spiral discharge channel through the feeding portion 310. Since the spiral discharge channel is fixedly connected to the spiral feeding rod 220, the spiral feeding rod 220 will drive the spiral discharge channel to rotate together. During the rotation of the spiral discharge channel, the granular activated carbon rolls toward the discharge end of the spiral discharge channel until it is discharged. During the rolling of the granular activated carbon along the spiral discharge channel, the circulating heating portion 330 will heat the granular activated carbon to quickly evaporate its moisture, thereby achieving a drying effect. It can be seen that compared with the relevant existing technologies, the granular activated carbon production and preparation device disclosed in this embodiment integrates the granulation component 200 and the drying component 300 into one device, so that the prepared granular activated carbon can be directly dried, which effectively saves the time for transporting materials and improves the efficiency of preparing granular activated carbon; in addition, since the granular activated carbon is heated and dried while rolling in the spiral discharge channel, this heating method can not only extend the heating time and improve the uniformity of heating, but also is not easy to destroy the integrity of the granular activated carbon structure, thereby improving the quality of the finished granular activated carbon.

[0021] It should be noted that, when necessary, the extrusion barrel 210 may be provided with a heating device for heating the raw materials inside the extrusion barrel, so that the raw materials can be more easily and fully mixed together under a high temperature and high pressure environment.

[0022] In some embodiments, a port is provided at the end of the extruder barrel 210, to which a discharge plate 260 is fixed by screws. The discharge plate 260 has discharge holes 240 evenly distributed thereon. The material within the extruder barrel 210 can be extruded from the discharge holes 240 on the discharge plate 260 under the extrusion action of a screw feed rod 220. The screw feed rod 220 extends through the discharge plate 260 and is rotatably connected to the discharge plate 260 via a bearing.

[0023] In addition, in some embodiments, in order to control the length of the granular activated carbon, a scraper rod 221 is provided on the spiral feeding rod 220 located at the discharge hole 240. The scraper rod 221 is arranged on the outer wall of the discharge plate 260. When the spiral feeding rod 220 rotates, it drives the scraper rod 221 to rotate. The scraper rod 221 can scrape off the granular activated carbon squeezed out of the discharge hole 240, thereby ensuring that the length of the granular activated carbon meets the requirements. Controlling the rotation speed of the scraper rod 221 can control the length of the granular activated carbon.

[0024] In some embodiments, the feeding portion 310 includes a feeding pipe 311, a receiving bin 312, and a guide trough 313. The feeding pipe 311 is fixedly connected between the spiral discharge portion 320 and the spiral feeding rod 220. The feeding pipe 311 has a discharge cavity 3110 that communicates with the feed end of the spiral discharge channel. The receiving bin 312 is a hollow annular structure that fits over the outside of the feeding pipe 311. The guide trough 313 is fixedly connected between the inner wall of the receiving bin 312 and the feeding pipe, and the guide trough 313 communicates with the discharge cavity 3110. The feeding portion 310 with the above structure can automatically and continuously feed the granular activated carbon discharged from the discharge hole 240 into the feed end of the spiral discharge channel without adding additional drive equipment. Specifically, when the spiral feeding rod 220 rotates, it will drive the feeding pipe 311, the receiving bin 312 and the guide trough 313 to rotate together. At this time, after the granular activated carbon is discharged from the discharge hole 240, it will fall into the receiving bin 312. As the receiving bin 312 rotates, the granular activated carbon will slide along the guide trough 313 into the discharge cavity 3110 of the feeding pipe 311, and finally enter the feed end of the spiral discharge channel from the discharge cavity 3110.

[0025] In order to make it easier for the granular activated carbon entering the discharge chamber 3110 to be discharged into the spiral discharge channel, in some embodiments, the discharge chamber 3110 is a conical cavity, and the end with a larger diameter of the discharge chamber 3110 is connected to the feed end of the spiral discharge channel, and the end with a smaller diameter of the discharge chamber 3110 is connected to the guide groove 313.

[0026] In some embodiments, the spiral discharge section 320 includes a spiral discharge net 321 and first and second end plates 322 and 323 fixed at either end of the discharge net 321. A spiral discharge channel is formed between the discharge net 321, the first and second end plates 322 and 323. The pore size of the discharge net 321 should be smaller than the diameter of the granular activated carbon to ensure that the granular activated carbon does not pass through the mesh of the discharge net 321 or become stuck therein. In another embodiment, the spiral discharge section 320 can be devoid of end plates. Instead, the discharge net can be configured as an arc-shaped net with a central outward arch, a depression formed on the inside of the discharge net, and the discharge net can be rolled into a spiral shape to form a spiral discharge channel. The depression ensures that the granular activated carbon rolls along the spiral discharge channel and does not escape through the gaps on either side of the discharge net.

[0027] In some embodiments, spiral grooves 324 are provided on opposing sides of the first and second end plates 322, 323. The first and second end plates 322, 323 are removably connected by fasteners comprising a connecting shaft 325 and two fastening bolts 326. The length of the connecting shaft 325 is equal to the distance between the opposing sides of the two end plates. After the two end plates are mounted on both ends of the discharge net 321, the connecting shaft 325 is fixedly connected to the two end plates using fastening nuts. With this arrangement, the grooves 324 on the first and second end plates 322, 323 can limit the movement of the discharge net 321, thereby fixing the width of the spiral discharge channel and ensuring that the width of each position of the spiral discharge channel is consistent to prevent material jamming. Furthermore, the removable fasteners between the first and second end plates 322, 323 facilitate the assembly and disassembly of the discharge net 321, making it easier to remove the discharge net 321 for cleaning or replacement.

[0028] In some embodiments, an inflow hole 3230 is provided at a position of the second end plate 323 corresponding to the feed end of the spiral discharge channel, an outflow hole 3231 is provided at a position of the second end plate 323 corresponding to the discharge end of the spiral discharge channel, and an end of the discharge net 321 near the discharge end of the spiral discharge channel is fixedly connected to a curved plate 3211 via a ball-dividing net 3210, wherein the aperture of the ball-dividing net 3210 is larger than the aperture of the discharge net 321; the circulating heating portion 330 includes a heat-conducting ball 331, the diameter of which is smaller than the diameter of the inflow hole 3230 and the outflow hole 3231. With the above arrangement, the purpose of uniformly heating the granular activated carbon in the spiral discharge channel can be achieved through the coordinated use of the inflow hole 3230, the outflow hole 3231, the ball-dividing net 3210, the curved plate 3211, and the heat-conducting ball 331. Specifically, a heat-conducting ball 331 with a temperature of about 105-120°C is placed into the inflow hole 3230 by hand (heat-insulating gloves need to be worn) or a robot. The heat-conducting ball 331 enters the feed end of the spiral discharge channel from the inflow hole 3230 and mixes with the granular activated carbon. As the spiral discharge part 320 rotates, the heat-conducting ball 331 and the granular activated carbon roll along the spiral discharge channel, and the granular activated carbon is uniformly heated during the rolling process. When the mixed heat-conducting ball 331 and the granular activated carbon reach the discharge end of the spiral discharge channel, the granular activated carbon will leak out from the ball-dividing net 3210, and the heat-conducting ball 331 will roll along the ball-dividing net 3210 to the arc plate 3211, and finally be discharged from the outflow hole 3231. In this way, the heat-conducting ball 331 can be effectively separated from the granular activated carbon automatically for reuse.

[0029] To make the process of heating and drying granular activated carbon more automated, in some embodiments, the ball-distributing net 3210 is elastic. The circulating heating portion 330 further includes a support base 332, a net pressing component 333, and a heating box 334. The support base 332 is fixed to the base 100. The heating box 334 is elastically connected to the support base 332 via an elastic element. In one embodiment, the elastic element is a spring 335. Two spring columns 336 are fixed to the bottom of the heating box 334. The spring columns 336 are movably connected to the support base 332. The springs 335 are sheathed outside the spring columns 336 and are located between the heating box 334 and the support base 332. A heating element 337 is provided at the bottom of the heating box 334. The heating element 337 includes, but is not limited to, a resistive heating plate. A ball outlet 3340 corresponding to the position of the inflow hole 3230 is provided on the bottom side wall of the heating box 334, and a return port 3341 corresponding to the position of the outflow hole 3231 is provided on the top of the heating box 334. A ball partition plate 3342 is provided in the heating box 334, and the ball partition plate 3342 divides the interior of the heating box 334 into a volleyball channel 3343. The ball outlet 3340 and the return port 3341 are respectively provided at both ends of the volleyball channel 3343, and the screen pressing component 333 is provided on the outside of the discharge net 321. By adopting the above-mentioned setting, on the basis of the mutual cooperation between the inflow hole 3230, the outflow hole 3231, the ball dividing net 3210, the arc plate 3211 and the heat-conducting ball 331, the support seat 332, the pressing net component 333, the heating box 334, the elastic element, the ball partition plate 3342 and the heating element 337 are added, so that the granular activated carbon in the spiral discharge channel can be uniformly heated, and the heat-conducting ball 331 can be automatically circulated in the spiral discharge channel, while ensuring that the heat-conducting ball 331 is smoothly heated to the specified temperature.Specifically, when the heat-conducting balls 331 are not loaded into the heating box 334, the position of the ball outlet 3340 of the heating box 334 will be higher than the position of the inflow hole 3230, and the ball outlet 3340 and the inflow hole 3230 are staggered with each other. When the granular activated carbon in the spiral discharge channel needs to be heated, the heat-conducting balls 331 are slowly and gradually added into the heating box 334. The heat-conducting balls 331 flow along the volleyball channel 3343 inside the heating box 334, and the heating element 337 can heat the heat-conducting balls 331 in the volleyball channel 3343. In the early stage, the heating box 334 will be maintained at a higher position under the action of the elastic element. At this time, the ball outlet 3340 and the inflow hole 3230 are staggered with each other. , the heating element 337 has enough time to heat the heat-conducting balls 331. As the number of heat-conducting balls 331 in the heating box 334 gradually increases, the heating box 334 will move downward under the action of gravity, and the ball outlet 3340 will eventually align with the inflow hole 3230. At this time, the heat-conducting balls 331 that are first heated to the appropriate temperature by the heating element 337 will enter the feed end of the spiral discharge channel from the inflow hole 3230 and roll along the spiral discharge channel to achieve the purpose of heating the granular activated carbon. When the granular activated carbon and the heat-conducting balls 331 come to the discharge end of the spiral discharge channel, the granular activated carbon will leak out from the mesh of the ball-dividing net 3210, while the heat-conducting balls 331 will roll along the ball-dividing net. 3210 continues to roll to the position of the curved plate 3211. Due to the elasticity of the ball-dividing net 3210, when the ball-dividing net 3210 is not in contact with the pressing net component 333, the curved plate 3211 at the end thereof will not be aligned with the outflow hole 3231. As the discharge net 321 continues to rotate, when the ball-dividing net 3210 moves to the position of the pressing net component 333, the pressing net component 333 will squeeze the ball-dividing net 3210 inward, thereby moving the curved plate 3211 at the end of the ball-dividing net 3210. After moving, the curved plate 3211 will be aligned with the outflow hole 3231. At this time, the heat-conducting balls 331 staying at the curved plate 3211 can flow out from the outflow hole 3231. The hot balls 331 will fall into the heating box 334 from the reflux port 3341 at the top of the heating box 334 and be reheated by the heating element 337. By repeating this process, the purpose of automatically circulating the heat-conducting balls 331 in the spiral discharge channel while uniformly heating the granular activated carbon in the spiral discharge channel can be achieved. At the same time, since the heat-conducting balls 331 in the heating box 334 need to reach a certain number, the ball outlet 3340 will be aligned with the inflow hole 3230. In this way, a certain number of heat-conducting balls 331 will always remain in the heating box 334, thereby extending the heating time of the heat-conducting balls 331 in the heating box 334 and ensuring that the heat-conducting balls 331 are smoothly heated to the specified temperature.

[0030] In some embodiments, the mesh pressing member 333 includes a pressing rod 3330 and a pressing shaft 3331. The first end of the pressing rod 3330 is fixed to the support base 332, the second end of the pressing rod 3330 extends to the outside of the discharge mesh 321, and the pressing shaft 3331 is arranged parallel to the discharge mesh 321. The pressing shaft 3331 is rotatably connected to the second end of the pressing rod 3330. The pressing shaft 3331 is a tapered shaft, with a larger diameter at the end of the pressing shaft 3331 near the outflow hole 3231. With this arrangement, when the mesh pressing member 333 contacts the ball distributing net 3210, the tapered pressing shaft 3331 of the mesh pressing member 333 can press the end of the ball distributing net 3210 near the outflow hole 3231 lower, causing the curved plate 3211 to tilt accordingly. This makes it easier for the heat-conducting balls 331 to flow from the inclined curved plate 3211 to the outflow hole 3231, thereby allowing the heat-conducting balls 331 to be discharged from the outflow hole 3231 more smoothly.

[0031] In some embodiments, a stopper is provided between the support base 332 and the heating box 334 to limit the minimum distance between the support base 332 and the heating box 334. Specifically, the stopper may be a stopper post 338 provided on the support base 332 or the heating box 334. The stopper limits the maximum downward movement of the heating box 334, ensuring that the ball outlet 3340 of the heating box 334 does not fall below the inflow hole 3230 on the second end plate 323, thereby preventing the heat-conducting balls 331 from circulating properly.

[0032] During the drying process of granular activated carbon in the spiral discharge channel, dust will be generated, which will pollute the surrounding environment. For this reason, in some embodiments, the low-energy consumption and low-emission waste heat and exhaust gas recycling granular activated carbon production and preparation device also includes a material receiving and dust removal component 400, which includes a material receiving box 410, a dust removal box 420, a dust removal net 430 and a blower 440. The material receiving box 410 is arranged below the discharge net 321, the dust removal box 420 is arranged on one side of the material receiving box 410, the dust removal net 430 is arranged in the dust removal box 420, and the interior of the dust removal box 420 is divided into two parts, the upper and lower parts, the dust removal box 420 has a dust inlet 421 facing the discharge net 321, the dust inlet 421 is connected to the upper part of the interior of the dust removal box 420, and the air inlet end of the blower 440 is connected to the lower part of the interior of the dust removal box 420. By providing a receiving dust removal assembly 400, dust can be separated from the granular activated carbon, which not only reduces dust pollution but also improves the quality of the granular activated carbon. Specifically, when the blower 440 is activated, it creates a negative pressure in the dust removal box 420. The dust generated when the granular activated carbon is heated and dried by the heat-conducting balls 331 is sucked into the dust removal box 420 through the dust inlet 421 and intercepted by the dust removal net 430 in the dust removal box 420, thereby achieving the purpose of dust removal. After dust removal, the granular activated carbon discharged from the discharge end of the spiral discharge channel is collected by the receiving box 410.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device, characterized in that: The invention comprises a base (100), a granulation assembly (200) and a drying assembly (300), wherein the granulation assembly (200) comprises an extrusion barrel (210) and a spiral feeding rod (220), wherein the extrusion barrel (210) is fixed on the base (100) and has an inlet (230) and a discharge hole (240); the spiral feeding rod (220) is rotatably arranged in the extrusion barrel (210); the drying assembly (300) comprises a feeding portion (310), a spiral discharge portion (320) and a circulation heating portion (330), wherein the spiral discharge portion (320) is fixed to the spiral feeding rod (220) and has a spiral discharge channel; the feeding portion (310) is used to transfer the granular activated carbon discharged from the discharge hole (240) to the feed end of the spiral discharge channel, and the circulation heating portion (330) is used to heat the granular activated carbon in the spiral discharge channel.

2. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 1 is characterized by: The material receiving and feeding portion (310) comprises a feeding pipe (311), a material receiving bin (312) and a material guide trough (313); the feeding pipe (311) is fixedly connected between the spiral discharging portion (320) and the spiral feeding rod (220); the feeding pipe (311) has a discharge cavity (3110) connected to the feed end of the spiral discharging channel; the material receiving bin (312) is a hollow annular structure and is sleeved on the outside of the feeding pipe (311); the material guide trough (313) is fixedly connected between the inner wall of the material receiving bin (312) and the material receiving pipe, and the material guide trough (313) is connected to the discharge cavity (3110).

3. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 2 is characterized by: The discharge cavity (3110) is a conical cavity, the end of the discharge cavity (3110) with a larger diameter is connected to the feed end of the spiral discharge channel, and the end of the discharge cavity (3110) with a smaller diameter is connected to the guide groove (313).

4. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 1 is characterized by: The spiral discharge portion (320) comprises a spiral discharge net (321) and a first end plate (322) and a second end plate (323) respectively fixed at both ends of the discharge net (321); the spiral discharge channel is formed between the discharge net (321), the first end plate (322) and the second end plate (323).

5. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 4 is characterized by: A spiral embedding groove (324) is provided on opposite sides of the first end plate (322) and the second end plate (323), and the first end plate (322) and the second end plate (323) are detachably connected via fasteners.

6. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 4 is characterized by: An inflow hole (3230) is provided at a position of the second end plate (323) corresponding to the feed end of the spiral discharge channel, and an outflow hole (3231) is provided at a position of the second end plate (323) corresponding to the discharge end of the spiral discharge channel. An end of the discharge net (321) close to the discharge end of the spiral discharge channel is fixedly connected to an arc plate (3211) via a ball dividing net (3210), and the aperture of the ball dividing net (3210) is larger than the aperture of the discharge net (321); the circulating heating part (330) includes a heat-conducting ball (331), and the diameter of the heat-conducting ball (331) is smaller than the diameter of the inflow hole (3230) and the diameter of the outflow hole (3231).

7. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 6 is characterized by: The ball distribution net (3210) is elastic. The circulating heating part (330) further comprises a support seat (332), a net pressing component (333) and a heating box (334). The support seat (332) is fixed on the base (100). The heating box (334) is elastically connected to the support seat (332) via an elastic element. A heating element (337) is provided at the bottom of the heating box (334). A ball outlet (337) corresponding to the position of the inflow hole (3230) is provided on the side wall of the bottom of the heating box (334). 340), a return port (3341) corresponding to the position of the outflow hole (3231) is provided on the top of the heating box (334), a ball partition plate (3342) is provided in the heating box (334), and the ball partition plate (3342) divides the interior of the heating box (334) into a volleyball channel (3343), the ball outlet (3340) and the return port (3341) are respectively provided at the two ends of the volleyball channel (3343), and the pressing net component (333) is provided on the outside of the discharge net (321).

8. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 7 is characterized by: The pressing net component (333) includes a pressing rod (3330) and a pressing shaft (3331), the first end of the pressing rod (3330) is fixed to the support seat (332), the second end of the pressing rod (3330) extends to the outside of the discharge net (321), the pressing shaft (3331) is arranged parallel to the discharge net (321), and the pressing shaft (3331) is rotatably connected to the second end of the pressing rod (3330), the pressing shaft (3331) is a conical shaft, and the diameter of the end of the pressing shaft (3331) close to the outflow hole (3231) is larger.

9. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 7 is characterized by: A limiting member is provided between the support base (332) and the heating box (334), and the limiting member is used to limit the minimum distance between the support base (332) and the heating box (334).

10. The low-energy consumption and low-emission waste heat and waste gas recycling granular activated carbon production and preparation device according to claim 4 is characterized by: The invention also includes a material receiving and dust removal assembly (400), wherein the material receiving and dust removal assembly (400) includes a material receiving box (410), a dust removal box (420), a dust removal net (430) and a blower (440), wherein the material receiving box (410) is arranged below the material discharge net (321), the dust removal box (420) is arranged on one side of the material receiving box (410), the dust removal net (430) is arranged in the dust removal box (420) and divides the interior of the dust removal box (420) into an upper and a lower part, the dust removal box (420) has a dust inlet (421) facing the material discharge net (321), the dust inlet (421) is communicated with the upper part of the interior of the dust removal box (420), and the air inlet end of the blower (440) is communicated with the lower part of the interior of the dust removal box (420).

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