A low-energy-consumption low-emission waste heat waste gas recycling granular activated carbon production device

Abstract

The present application relates to the technical field of granular activated carbon production, in particular to a low-energy-consumption and low-emission waste heat and waste gas recycling granular activated carbon production device, which comprises a base, a granulation assembly and a drying assembly, the granulation assembly comprises an extrusion cylinder and a spiral feeding rod, the extrusion cylinder is fixed on the base and has a feeding port and a discharging hole; the spiral feeding rod is rotatably arranged in the extrusion cylinder; the drying assembly comprises a feeding part, a spiral discharging part and a circulating heating part, the spiral discharging part is fixed with the spiral feeding rod and has 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 of preparing granular activated carbon is improved; and the integrity of the structure of the granular activated carbon is not easily damaged during the drying process, and the quality of the finished granular activated carbon is improved.

Description

TECHNICAL FIELD

[0001] The present application 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 device. BACKGROUND

[0002] Activated carbon is a kind of porous adsorbent material, which can effectively adsorb organic pollutants in waste gas and is widely used in environmental protection, chemical industry, energy and other fields. Activated carbon is usually made into granular shape, and granular activated carbon is generally prepared by using a screw extrusion granulator. At present, the activated carbon granules formed by the screw extrusion granulator need to be transferred to a dryer for drying treatment to improve the quality of the granular activated carbon because of the high water content (wet granulation). That is to say, most of the existing screw extrusion granulators do not have the function of drying, and the granulation and drying need to be carried out on two devices, which will limit the production efficiency due to the transfer of materials between the two devices. In addition, in order to speed up the drying speed, the existing dryers for granular activated carbon will use stirring blades to stir to increase the fluidity of the granular activated carbon during use, but this stirring method will damage the integrity of the structure of the granular activated carbon and reduce its quality. In view of the above problems, the present application provides a low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production device. SUMMARY

[0003] The present application aims 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 device, which can directly dry the prepared granular activated carbon, effectively saving the time of transferring materials and improving the efficiency of preparing granular activated carbon. Moreover, the integrity of the structure of the granular activated carbon is not easily damaged during the drying process, and the quality of the finished granular activated carbon is improved.

[0004] In order to achieve the above purpose, the present application provides a low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production device to solve the problems proposed in the background art.

[0005] The present application is realized by the following technical solutions:

[0006] The utility model provides a kind of low-energy consumption low emission waste heat waste gas recycling granular activated carbon production preparation device, including pedestal, granulating component and drying component, the granulating component includes extrusion cylinder and screw feed rod, the extrusion cylinder is fixed on the pedestal and has inlet and discharge hole;The screw feed rod is rotatably arranged in extrusion cylinder;The drying component includes receiving feeding part, spiral discharge part and circulating heating part, the spiral discharge part is fixed with the screw feed rod and has spiral discharge channel;The receiving feeding part is used to transfer granular activated carbon discharged from the discharge hole to the feed end of the spiral discharge channel, and the circulating heating part is used to heat the granular activated carbon in the spiral discharge channel.

[0007] Optionally, the receiving feeding part includes a feeding tube, a receiving bin and a guide chute, the feeding tube is fixedly connected between the spiral discharge part and the screw feed rod, the feeding tube has a discharge cavity in communication with the feed end of the spiral discharge channel; the receiving bin is annular in structure with a hollow inside and is sleeved on the outside of the feeding tube; the guide chute is fixedly connected between the inner wall of the receiving bin and the receiving tube, and the guide chute is in communication with the discharge cavity.

[0008] Optionally, the discharge cavity is a tapered cavity, one end of the discharge cavity with a larger diameter is in communication with the feed end of the spiral discharge channel, and the other end of the discharge cavity with a smaller diameter is in communication with the guide chute.

[0009] Optionally, the spiral discharge part includes a spiral discharge mesh and first and second end plates fixed at both ends of the discharge mesh respectively, the discharge mesh, the first end plate and the second end plate form the spiral discharge channel therebetween.

[0010] Optionally, the first and second end plates are provided with spiral embedding grooves on opposite sides thereof, and the first and second end plates are detachably connected by fasteners.

[0011] Optionally, the second end plate is provided with an inflow hole at a position corresponding to the feed end of the spiral discharge channel, and is provided with an outflow hole at a position corresponding to the discharge end of the spiral discharge channel, one end of the discharge mesh close to the discharge end of the spiral discharge channel is fixedly connected with an arc-shaped plate through a ball separating net, the aperture of the ball separating net is larger than that of the discharge mesh; the circulating heating part includes heat-conducting balls, and the diameter of the heat-conducting balls is smaller than that of the inflow hole and the outflow hole.

[0012] Optionally, the ball separating net is elastic, the circulating heating part further comprises a supporting base, a net pressing component and a heating box, the supporting base is fixed on the base, the heating box is elastically connected to the supporting base through elastic elements, the bottom of the heating box is provided with heating elements, the side wall of the bottom of the heating box is provided with ball outlet ports corresponding to the positions of the inflow holes, the top of the heating box is provided with backflow ports corresponding to the positions of the outflow holes, the heating box is provided with a ball separating plate, the ball separating plate divides the inside of the heating box into ball arranging channels, the ball outlet ports and the backflow ports are respectively arranged at two ends of the ball arranging channels, and the net pressing component is arranged outside the discharging net.

[0013] Optionally, the net pressing component comprises a pressing rod and a pressing shaft, the first end of the pressing rod is fixed to the supporting base, the second end of the pressing rod extends to the outside of the discharging net, the pressing shaft is parallel to the discharging net, the pressing shaft is rotationally connected to the second end of the pressing rod, and the pressing shaft is a tapered shaft, the diameter of one end of the pressing shaft close to the outflow hole is larger.

[0014] Optionally, a limiting piece is arranged between the supporting base and the heating box, and the limiting piece is used for limiting the minimum distance between the supporting base and the heating box.

[0015] Optionally, the low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production device further comprises a material receiving and dust removing assembly, the material receiving and dust removing assembly comprises a material receiving box, a dust removing box, a dust removing net and a blower, the material receiving box is arranged below the discharging net, the dust removing box is arranged on one side of the material receiving box, the dust removing net is arranged in the dust removing box and divides the inside of the dust removing box into two parts, the dust removing box is provided with a dust inlet facing the discharging net, the dust inlet is in communication with the upper part of the inside of the dust removing box, and the air inlet end of the blower is in communication with the lower part of the inside of the dust removing box.

[0016] Compared with the prior art, the low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production device has the following beneficial effects:

[0017] 1. The granulating assembly and the drying assembly are integrated on one device, so that the prepared granular activated carbon can be directly dried, the time for transferring materials is effectively saved, and the efficiency of preparing granular activated carbon is improved; in addition, the granular activated carbon is rolled and heated in the spiral discharging channel, the heating mode can prolong the heating time and improve the uniformity of heating, the integrity of the structure of the granular activated carbon is not easily damaged, and the quality of the granular activated carbon product is improved.

[0018] 2. The feeding part of the present application comprises a feeding tube, a receiving bin and a guide groove, 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;

[0019] 3. The present application can uniformly heat the granular activated carbon in the spiral discharge channel by the cooperation between the inflow hole, the outflow hole, the ball separating net, the arc-shaped plate and the heat-conducting ball;

[0020] 4. On the basis of the cooperation between the inflow hole, the outflow hole, the ball separating net, the arc-shaped plate and the heat-conducting ball, the present application adds a supporting seat, a pressing net component, a heating box, an elastic element, a ball separating plate and a heating element, so that the heat-conducting ball can automatically circulate in the spiral discharge channel on the basis of uniformly heating the granular activated carbon in the spiral discharge channel, and the heat-conducting ball can also be smoothly heated to a specified temperature;

[0021] 5. The present application sets a limiting piece to limit the maximum distance of downward movement of the heating box, so as to ensure that the ball outlet of the heating box is not lower than the inflow hole on the second end plate, so as to prevent the heat-conducting ball from not being able to normally circulate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the structure of one shaft side of the present application;

[0023] Figure 2 is a schematic view of the structure of the other shaft side of the present application; Figure 1 is a schematic view of the enlarged structure of A of the present application;

[0024] Figure 3 is a schematic view of the structure of the other shaft side of the present application;

[0025] Figure 4 is a schematic view of the structure of one shaft side of the spiral discharge part and the circulating heating part of the present application;

[0026] Figure 5 is a schematic view of the structure of the other shaft side of the spiral discharge part and the circulating heating part of the present application;

[0027] Figure 6 is a schematic view of the structure of the discharge net, the ball separating net and the arc-shaped plate of the present application;

[0028] Figure 7 is a schematic view of the structure of the circulating heating part of the present application;

[0029] Figure 8 is a schematic view of the cross-sectional structure of the feeding part of the present application.

[0030] In the figure: 100, base; 200, granulation assembly; 210, extrusion barrel; 220, spiral feeding rod; 221, scraping rod; 230, feeding port; 240, discharge hole; 250, motor; 260, discharge plate; 300, drying assembly; 310, receiving feeding part; 311, feeding pipe; 3110, discharge cavity; 312, receiving bin; 313, guide chute; 320, spiral discharging part; 321, discharge net; 3210, ball separating net; 3211, arc plate; 322, first end plate; 323, second end plate; 3230, inflow hole; 3231, outflow hole; 324, embedding 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, backflow port; 3342, ball separating plate; 3343, ball discharging channel; 335, spring; 336, spring column; 337, heating element; 338, limiting column; 400, receiving dust removal assembly; 410, receiving bin; 420, dust removal bin; 421, dust inlet; 430, dust removal net; 440, air blower. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Embodiment: Please refer to Figures 1 to 8 According to the embodiments of the present application, a low-energy-consumption low-emission waste heat and waste gas recycling granular activated carbon production device is provided. The granular activated carbon production device can include a base 100, a granulation assembly 200, and a drying assembly 300. The granulation assembly 200 includes an extrusion barrel 210 and a spiral feeding rod 220. The extrusion barrel 210 is fixed on the base 100 and has a feeding port 230 and a discharge hole 240. The spiral feeding rod 220 is rotatably arranged in the extrusion barrel 210. The spiral feeding rod 220 can be driven to rotate by a motor 250. When the spiral feeding rod 220 rotates, the external spiral blades thereof can push the material forward in the direction of the discharge hole 240. The drying assembly 300 includes a receiving feeding part 310, a spiral discharging part 320, and a circulating heating part 330. The spiral discharging part 320 is fixed with the spiral feeding rod 220 and has a spiral discharging channel. The receiving feeding part 310 is used to transfer the granular activated carbon discharged from the discharge hole 240 to the feeding end of the spiral discharging channel. The circulating heating part 330 is used to heat the granular activated carbon in the spiral discharging channel.

[0033] The low-energy and low-emission waste heat and exhaust gas recycling granular activated carbon production device with the above structure, in the first step, the granulation assembly 200 is used to prepare granular activated carbon. Specifically, the necessary raw materials for preparing granular activated carbon, such as activated carbon powder and adhesive, are first added into the extrusion cylinder 210 through the feeding port 230, and then the spiral feeding rod 220 is rotated to mix the raw materials together and push them towards the discharge hole 240. The raw materials are finally discharged from the discharge hole 240 in the form of cylindrical particles, thereby obtaining granular activated carbon. Since the water content of the granular activated carbon is still relatively high at this time, in the second step, the drying assembly 300 is used to dry the granular activated carbon prepared in the first step. Specifically, the granular activated carbon discharged from the discharge hole 240 is sent to the feeding end of the spiral discharge channel through the feeding part 310. Since the spiral discharge channel is fixedly connected with the spiral feeding rod 220, the spiral feeding rod 220 drives the spiral discharge channel to rotate. In the process of rotating, the granular activated carbon rolls towards the discharge end of the spiral discharge channel until it is discharged. In the process of rolling along the spiral discharge channel, the circulating heating part 330 heats the granular activated carbon to rapidly evaporate the water, achieving the effect of drying. As can be seen, compared with the related prior art, the granular activated carbon production device disclosed in the embodiment can directly dry the prepared granular activated carbon by integrating the granulation assembly 200 and the drying assembly 300 in one device, effectively saving the time for transferring materials and improving the efficiency of preparing granular activated carbon. In addition, since the granular activated carbon is rolled and heated at the same time in the spiral discharge channel, this heating method not only prolongs the heating time and improves the uniformity of heating, but also does not easily damage the integrity of the structure of the granular activated carbon, thereby improving the quality of the finished granular activated carbon.

[0034] It should be noted that the extrusion cylinder 210 can also be provided with a heating device for heating the raw materials inside the extrusion cylinder, so that the raw materials can be more easily mixed together under high temperature and high pressure conditions when necessary.

[0035] In some embodiments, the end of the extrusion cylinder 210 is provided with a port, and a discharge plate 260 is fixed to the port by a screw. The discharge plate 260 is uniformly provided with discharge holes 240. The material in the extrusion cylinder 210 can be discharged outward from the discharge holes 240 of the discharge plate 260 under the extrusion action of the spiral feeding rod 220. The spiral feeding rod 220 penetrates through the discharge plate 260 and is rotatably connected with the discharge plate 260 through a bearing.

[0036] In addition, in some embodiments, in order to control the length of the granular activated carbon, the spiral feeding rod 220 located at the position of the discharge hole 240 is provided with a scraping rod 221, which is arranged on the outer side wall of the discharge plate 260. When the spiral feeding rod 220 rotates, it drives the scraping rod 221 to rotate. The scraping rod 221 can cut off the granular activated carbon extruded from the discharge hole 240, thereby ensuring that the length of the granular activated carbon meets the requirements. The rotation speed of the scraping rod 221 can control the length of the granular activated carbon.

[0037] In some embodiments, the receiving feeding part 310 includes a feeding pipe 311, a receiving bin 312, and a guide chute 313. The feeding pipe 311 is fixedly connected between the spiral discharge part 320 and the spiral feeding rod 220. The feeding pipe 311 has a discharge cavity 3110 that communicates with the feeding end of the spiral discharge channel. The receiving bin 312 is a hollow annular structure and is sleeved on the outside of the feeding pipe 311. The guide chute 313 is fixedly connected between the inner wall of the receiving bin 312 and the receiving pipe. The guide chute 313 communicates with the discharge cavity 3110. With the above-mentioned structure of the receiving feeding part 310, the granular activated carbon discharged from the discharge hole 240 can be continuously and automatically fed into the feeding end of the spiral discharge channel without adding additional driving equipment. Specifically, when the spiral feeding rod 220 rotates, it drives the feeding pipe 311, the receiving bin 312, and the guide chute 313 to rotate together. At this time, when the granular activated carbon is discharged from the discharge hole 240, it falls into the receiving bin 312. With the rotation of the receiving bin 312, the granular activated carbon slides along the guide chute 313 into the discharge cavity 3110 of the feeding pipe 311, and finally enters the feeding end of the spiral discharge channel from the discharge cavity 3110.

[0038] In order to make it easier for the granular activated carbon entering the discharge cavity 3110 to be discharged into the spiral discharge channel, in some embodiments, the discharge cavity 3110 is a tapered cavity. The end of the discharge cavity 3110 with a larger diameter communicates with the feeding end of the spiral discharge channel, and the end of the discharge cavity 3110 with a smaller diameter communicates with the guide chute 313.

[0039] In some embodiments, the spiral discharging part 320 comprises a spiral discharging net 321 and a first end plate 322 and a second end plate 323 fixed at both ends of the discharging net 321 respectively, and a spiral discharging channel is formed between the discharging net 321, the first end plate 322 and the second end plate 323. The aperture of the discharging net 321 should be smaller than the diameter of the granular activated carbon to ensure that the granular activated carbon cannot pass through the mesh of the discharging net 321 or be stuck in the mesh of the discharging net 321. In another embodiment, the spiral discharging part 320 can also be without end plates, and only the discharging net is set as an arc-shaped net arched outward in the middle, a recess is formed on the inner side of the discharging net, and the discharging net is rolled into a spiral shape to form a spiral discharging channel. The recess can ensure that the granular activated carbon rolls along the spiral discharging channel and cannot run out from the gap on both sides of the discharging net.

[0040] In some embodiments, the opposite sides of the first end plate 322 and the second end plate 323 are provided with spiral embedding grooves 324, and the first end plate 322 and the second end plate 323 are detachably connected through fasteners, and the fasteners comprise a connecting shaft 325 and two fastening bolts 326. The length of the connecting shaft 325 is equal to the distance between the opposite sides of the two end plates. After the two end plates are installed at both ends of the discharging net 321, the connecting shaft 325 is fixedly connected with the two end plates by using a fastening nut. By using the above-mentioned arrangement, the movement of the discharging net 321 can be limited through the embedding grooves 324 on the first end plate 322 and the second end plate 323, so as to fix the width of the spiral discharging channel and ensure that the width of the spiral discharging channel is consistent at each position to avoid the occurrence of material jamming. In addition, the first end plate 322 and the second end plate 323 are detachably connected through fasteners, which can facilitate the disassembly and assembly of the discharging net 321 and facilitate the subsequent disassembly, cleaning or replacement of the discharging net 321.

[0041] In some embodiments, the second end plate 323 is provided with an inflow hole 3230 at a position corresponding to the inlet end of the spiral discharge channel, and an outflow hole 3231 at a position corresponding to the outlet end of the spiral discharge channel, and one end of the discharge net 321 near the outlet end of the spiral discharge channel is fixedly connected with an arc-shaped plate 3211 through a ball separating net 3210, the aperture of the ball separating net 3210 is larger than that of the discharge net 321; the circulating heating part 330 comprises heat-conducting balls 331, the diameter of the heat-conducting balls 331 is smaller than that of the inflow hole 3230 and the outflow hole 3231. With the above arrangement, the mutual cooperation between the inflow hole 3230, the outflow hole 3231, the ball separating net 3210, the arc-shaped plate 3211 and the heat-conducting balls 331 can achieve the purpose of uniformly heating the granular activated carbon in the spiral discharge channel. Specifically, the heat-conducting balls 331 with a temperature of about 105-120℃ are put into the inflow hole 3230 by hand (heat-resistant gloves are needed) or a mechanical hand, the heat-conducting balls 331 enter the inlet end of the spiral discharge channel from the inflow hole 3230 and mix with the granular activated carbon, along with the rotation of the spiral discharge part 320, the heat-conducting balls 331 roll along the spiral discharge channel together with the granular activated carbon, and the granular activated carbon is uniformly heated in the rolling process, when the mixed heat-conducting balls 331 and the granular activated carbon come to the outlet end of the spiral discharge channel, the granular activated carbon leaks out of the ball separating net 3210, while the heat-conducting balls 331 roll along the ball separating net 3210 to the arc-shaped plate 3211 and are finally discharged from the outflow hole 3231, which can effectively separate the heat-conducting balls 331 from the granular activated carbon to be reused.

[0042] In order to make the process of heating and drying granular activated carbon more automatic, in some embodiments, the ball separating net 3210 is elastic, the circulating heating part 330 further comprises a support base 332, a net pressing component 333 and a heating box 334, the support base 332 is fixed on the base 100, the heating box 334 is elastically connected to the support base 332 through elastic elements, in an embodiment, the elastic elements are springs 335, two spring columns 336 are fixed at the bottom of the heating box 334, the spring columns 336 are movably inserted into the support base 332, and the springs 335 are sleeved outside the spring columns 336 and located between the heating box 334 and the support base 332. The heating box 334 is provided with a heating element 337 at the bottom, and the heating element 337 includes but is not limited to an electric resistance heating plate. The heating box 334 is provided with a ball outlet 3340 corresponding to the position of the inflow hole 3230 at the bottom side wall, and the heating box 334 is provided with a backflow opening 3341 corresponding to the position of the outflow hole 3231 at the top. The heating box 334 is provided with a ball separating plate 3342 inside, which divides the heating box 334 into a ball arranging channel 3343, the ball outlet 3340 and the backflow opening 3341 are respectively arranged at two ends of the ball arranging channel 3343, and the net pressing component 333 is arranged outside the discharge net 321. Through the above arrangement, by using the inflow hole 3230, the outflow hole 3231, the ball separating net 3210, the arc-shaped plate 3211 and the heat conducting ball 331 in cooperation, the support base 332, the net pressing component 333, the heating box 334, the elastic elements, the ball separating plate 3342 and the heating element 337 are added, so that the heat conducting ball 331 can automatically circulate in the spiral discharge channel on the basis of uniformly heating the granular activated carbon in the spiral discharge channel, and the heat conducting ball 331 can also be heated to a specified temperature smoothly.Specifically, when the heat-conducting balls 331 are not loaded in 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 it is needed to heat the granular activated carbon in the spiral discharge channel, the heat-conducting balls 331 are slowly and gradually added into the heating box 334, and the heat-conducting balls 331 flow along the ball discharge channel 3343 inside the heating box 334. The heating element 337 can heat the heat-conducting balls 331 in the ball discharge channel 3343. In the early stage, the heating box 334 is kept 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, and the heating element 337 has sufficient 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 finally 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 feeding end of the spiral discharge channel from the inflow hole 3230 and roll along the spiral discharge channel, achieving the purpose of heating the granular activated carbon. When the granular activated carbon and the heat-conducting balls 331 reach the discharge end of the spiral discharge channel, the granular activated carbon will leak out of the mesh holes of the ball separation net 3210, and the heat-conducting balls 331 will continue to roll along the ball separation net 3210 to the position of the arc-shaped plate 3211. Since the ball separation net 3210 is elastic, the arc-shaped plate 3211 at the end of the ball separation net 3210 will not align with the outflow hole 3231 when the ball separation net 3210 is not in contact with the pressure net component 333. As the discharge net 321 continues to rotate, when the ball separation net 3210 moves to the position of the pressure net component 333, the pressure net component 333 will press the ball separation net 3210 inward, thereby moving the arc-shaped plate 3211 at the end of the ball separation net 3210. After the movement, the arc-shaped plate 3211 will align with the outflow hole 3231. At this time, the heat-conducting balls 331 that stay at the arc-shaped plate 3211 can flow out of the outflow hole 3231. After flowing out, the heat-conducting balls 331 will fall into the heating box 334 from the return port 3341 at the top of the heating box 334 and be reheated by the heating element 337. In this way, the heat-conducting balls 331 can be repeatedly heated to achieve the purpose of automatically circulating in the spiral discharge channel while uniformly heating the granular activated carbon in the spiral discharge channel. At the same time, since the ball outlet 3340 will align with the inflow hole 3230 only when a certain number of heat-conducting balls 331 are in the heating box 334, a certain number of heat-conducting balls 331 will always remain in the heating box 334, thereby prolonging 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.

[0043] In some embodiments, the net pressing component 333 comprises a pressing rod 3330 and a pressing shaft 3331, the first end of the pressing rod 3330 is fixed with the support base 332, the second end of the pressing rod 3330 extends to the outside of the discharging net 321, the pressing shaft 3331 is parallel to the discharging net 321, the pressing shaft 3331 is rotationally connected to the second end of the pressing rod 3330, the pressing shaft 3331 is a tapered shaft, and the end of the pressing shaft 3331 close to the outflow hole 3231 has a larger diameter. In this way, when the net pressing component 333 contacts the ball separating net 3210, the tapered structure of the pressing shaft 3331 of the net pressing component 333 can make the end of the ball separating net 3210 close to the outflow hole 3231 be pressed lower, and the arc-shaped plate 3211 is tilted accordingly, so that the heat conducting balls 331 are more easily flow from the tilted arc-shaped plate 3211 to the outflow hole 3231, thereby making the heat conducting balls 331 more smoothly discharge from the outflow hole 3231.

[0044] In some embodiments, a limiting piece is arranged between the support base 332 and the heating box 334, and the limiting piece is used to limit the minimum distance between the support base 332 and the heating box 334. Specifically, the limiting piece can be a limiting column 338 arranged on the support base 332 or the heating box 334. By arranging the limiting piece, the maximum distance of the downward movement of the heating box 334 can be limited, and it is ensured that the ball outlet 3340 of the heating box 334 is not lower than the inflow hole 3230 on the second end plate 323, so as to avoid that the heat conducting balls 331 cannot normally circulate and flow.

[0045] During the drying process of the granular activated carbon in the spiral discharging channel, dust is generated, which pollutes the surrounding environment. Therefore, in some embodiments, the low-energy-consumption and low-emission waste heat and waste gas recycling granular activated carbon production device further comprises a material receiving and dust removing assembly 400, which comprises a material receiving box 410, a dust removing box 420, a dust removing net 430 and a blower 440. The material receiving box 410 is arranged below the discharging net 321, the dust removing box 420 is arranged on one side of the material receiving box 410, the dust removing net 430 is arranged in the dust removing box 420 and separates the dust removing box 420 into two parts, the dust removing box 420 has a dust inlet 421 facing the discharging net 321, the dust inlet 421 communicates with the upper part of the dust removing box 420, and the air inlet end of the blower 440 communicates with the lower part of the dust removing box 420. By arranging the material receiving and dust removing assembly 400, the dust in the granular activated carbon can be separated out, which not only reduces dust pollution, but also improves the quality of the granular activated carbon. Specifically, the blower 440 is started, a negative pressure is formed in the dust removing box 420 by the blower 440, the dust generated when the granular activated carbon is heated and dried by the heat conducting balls 331 is sucked into the dust removing box 420 from the dust inlet 421, and is intercepted by the dust removing net 430 in the dust removing box 420, thereby achieving the dust removing purpose; the granular activated carbon discharged from the discharging end of the spiral discharging channel after dust removal is collected by the material receiving box 410.

[0046] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A low-energy, low-emission waste heat exhaust gas recycling granular activated carbon production device, characterized by, The application relates to a granular activated carbon production device, which comprises a base (100), a granulation assembly (200) and a drying assembly (300), wherein the granulation assembly (200) comprises an extrusion cylinder (210) and a screw feeding rod (220), the extrusion cylinder (210) is fixed on the base (100) and is provided with an inlet (230) and an outlet hole (240); the screw feeding rod (220) is rotatably arranged in the extrusion cylinder (210); the drying assembly (300) comprises a receiving feeding part (310), a screw discharging part (320) and a circulating heating part (330), the screw discharging part (320) is fixed with the screw feeding rod (220) and is provided with a spiral discharging channel; the receiving feeding part (310) is used for transferring the granular activated carbon discharged from the outlet hole (240) to the feeding end of the spiral discharging channel; the circulating heating part (330) is used for heating the granular activated carbon in the spiral discharging channel; the screw discharging part (320) comprises a spiral discharging net (321) and first and second end plates (322 and 323) fixed at two ends of the discharging net (321) respectively, the spiral discharging channel is formed between the discharging net (321), the first end plate (322) and the second end plate (323); the second end plate (323) is provided with an inflow hole (3230) at a position corresponding to the feeding end of the spiral discharging channel, the second end plate (323) is provided with an outflow hole (3231) at a position corresponding to the discharging end of the spiral discharging channel, one end of the discharging net (321) close to the discharging end of the spiral discharging channel is fixedly connected with an arc-shaped plate (3211) through a ball separating net (3210), the aperture of the ball separating net (3210) is larger than that of the discharging net (321); the circulating heating part (330) comprises heat-conducting balls (331), the diameter of the heat-conducting balls (331) is smaller than that of the inflow hole (3230) and the outflow hole (3231).The ball separating net (3210) is elastic, the circulating heating part (330) further comprises a supporting seat (332), a net pressing component (333) and a heating box (334), the supporting seat (332) is fixed on the base (100), the heating box (334) is elastically connected to the supporting seat (332) through an elastic element, a heating element (337) is arranged at the bottom of the heating box (334), a ball outlet (3340) corresponding to the position of the inflow hole (3230) is arranged on the sidewall of the bottom of the heating box (334), a backflow opening (3341) corresponding to the position of the outflow hole (3231) is arranged at the top of the heating box (334), a ball separating plate (3342) is arranged in the heating box (334), the ball separating plate (3342) divides the inside of the heating box (334) into a ball arranging channel (3343), the ball outlet (3340) and the backflow opening (3341) are arranged at two ends of the ball arranging channel (3343) respectively, and the net pressing component (333) is arranged outside the ball arranging net (321); the net pressing component (333) comprises a pressing rod (3330) and a pressing shaft (3331), a first end of the pressing rod (3330) is fixed to the supporting seat (332), a second end of the pressing rod (3330) extends to the outside of the ball arranging net (321), the pressing shaft (3331) is parallel to the ball arranging net (321), the pressing shaft (3331) is rotationally connected to the second end of the pressing rod (3330), the pressing shaft (3331) is a tapered shaft, and the end of the pressing shaft (3331) close to the outflow hole (3231) has a larger diameter.

2. The low energy consumption, low emission waste heat exhaust gas recycling granular activated carbon production device according to claim 1, characterized in that: The receiving feeding part (310) comprises a feeding pipe (311), a receiving bin (312) and a guide chute (313), the feeding pipe (311) is fixedly connected between the spiral discharging part (320) and the spiral feeding rod (220), the feeding pipe (311) has a discharging cavity (3110) in communication with the feeding end of the spiral discharging channel; the receiving bin (312) is annular in structure with a hollow inner side and is sleeved on the outside of the feeding pipe (311); the guide chute (313) is fixedly connected between the inner wall of the receiving bin (312) and the receiving pipe, and the guide chute (313) is in communication with the discharging cavity (3110).

3. The low energy consumption, low emission waste heat exhaust gas recycling granular activated carbon production device according to claim 2, characterized in that: The discharging cavity (3110) is a tapered cavity, one end of the discharging cavity (3110) with a larger diameter is in communication with the feeding end of the spiral discharging channel, and the other end of the discharging cavity (3110) with a smaller diameter is in communication with the guide chute (313).

4. The low energy consumption, low emission waste heat exhaust gas recycling granular activated carbon production device according to claim 1, characterized in that: The opposite sides of the first end plate (322) and the second end plate (323) are provided with spiral embedding grooves (324), and the first end plate (322) and the second end plate (323) are detachably connected by fasteners.

5. The low energy and low emission waste heat and exhaust gas recycling granular activated carbon production device according to claim 1, characterized in that: A limiting piece is arranged between the support seat (332) and the heating box (334), and the limiting piece is used to limit the minimum distance between the support seat (332) and the heating box (334).

6. The low energy and low emission waste heat exhaust gas recycling granular activated carbon production device according to claim 1, characterized in that: The receiving dust removal assembly (400) comprises a receiving bin (410), a dust removal bin (420), a dust removal net (430) and a blower (440), the receiving bin (410) is arranged below the discharging net (321), the dust removal bin (420) is arranged on one side of the receiving bin (410), the dust removal net (430) is arranged in the dust removal bin (420) and divides the dust removal bin (420) into two parts, the dust removal bin (420) has a dust inlet (421) facing the discharging net (321), the dust inlet (421) is in communication with the upper part of the dust removal bin (420), and the air inlet end of the blower (440) is in communication with the lower part of the dust removal bin (420).

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