Hot air tail gas purification device capable of recycling waste heat

Abstract

The invention relates to the technical field of tail gas purification, and particularly provides a hot air tail gas purification device capable of recycling waste heat. Comprising a purification tower and an adsorption purification layer assembled in the purification tower, the adsorption purification layer comprises a hot gas bin fixed in the purification tower; multiple groups of circular holes are correspondingly formed in the upper and lower ends of the hot air bin; heat exchange cylinders are butted between two vertically opposite round holes of the hot air bin in the hot air bin; an adsorption charging barrel is correspondingly inserted into each heat exchange barrel; material disturbing assemblies are assembled in the adsorption charging barrels, and a driving mechanism for synchronously driving the multiple material disturbing assemblies is assembled on the hot air bin in a penetrating mode; according to the device provided by the invention, the continuity of the adsorption effect is maintained by heating, dehumidifying and fully disturbing the activated carbon, the adsorption and purification effect on tail gas is ensured, the service life of the activated carbon is prolonged, and the replacement frequency of the activated carbon is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas purification, and specifically proposes a hot air tail gas purification device with waste heat that can be recovered and reused. Background Art

[0002] In the field of industrial production, tail gas is generated in various manufacturing and processing processes such as chemical, steel, cement, electricity, printing and dyeing. Usually, the tail gas of industrial production is basically waste gas, and generally contains a variety of pollutants such as particulate matter, volatile organic compounds, sulfur dioxide, nitrogen oxides, carbon monoxide and other harmful substances. In order to avoid the pollution of tail gas to the environment and achieve standard emissions, the tail gas usually needs to be purified. Under the existing technology, there are suitable purification devices for the tail gas generated in different industrial fields. For example, a spray tower is a tail gas purification device classified as wet exhaust gas treatment equipment. It mainly contacts the exhaust gas through liquid (such as water or chemical absorbent) to achieve dissolution, absorption or chemical reaction of gaseous pollutants, and can clean the particulate matter, thereby achieving the purpose of purifying the exhaust gas.

[0003] Spray towers are widely used across various industrial sectors to treat waste gases containing dust, acidic gases, alkaline gases, and certain volatile organic compounds. They are primarily used to remove pollutants such as particulate matter and some soluble gases (such as acidic gases) from waste gases. However, in many cases, particularly when waste gases contain complex pollutants or require compliance with more stringent emission standards, a single spray tower treatment may not be sufficient to ensure full environmental compliance.

[0004] Spray towers typically require a combination of multiple purification technologies to comprehensively purify exhaust gas. This means that after being spray-purified within the spray tower, the exhaust gas is generally not discharged directly but requires further purification. This is especially true when the exhaust gas contains complex pollutants or requires compliance with more stringent emission standards. Simply spraying the exhaust gas in a spray tower may not be sufficient to ensure that the exhaust gas fully meets environmental standards. Existing technologies can further purify the exhaust gas after spray purification through one or more combinations of treatment methods, such as activated carbon adsorption, filtration and dust removal, biological filtration, and catalytic combustion, to ensure that the exhaust gas meets emission standards.

[0005] From the above, it can be seen that activated carbon adsorption is a purification method for further purification. Activated carbon has a highly developed pore structure and a huge specific surface area. It has extremely strong adsorption capacity and can effectively adsorb the remaining volatile organic compounds or other harmful substances that are not easily absorbed by water, and can filter and intercept some fine particulate pollutants. Under the existing technology, activated carbon is usually loaded in a filter box so that the exhaust gas after spraying treatment passes through the filter box, and then the exhaust gas is further purified. However, the existing method has the following disadvantages, which affect the purification effect and the adsorption effect of activated carbon. Specifically: (1) The exhaust gas after spraying treatment usually contains more water vapor and high humidity. Therefore, as the work continues, a large amount of water vapor will be adsorbed on the activated carbon, and the activated carbon with high humidity will greatly affect its adsorption capacity, thereby greatly reducing the adsorption effect.

[0006] (2) Activated carbon accumulates in the filter box, resulting in uneven and insufficient contact between the activated carbon and the exhaust gas, which affects the adsorption effect.

[0007] (3) Activated carbon accumulates in the filter box, and after a long period of adsorption, the activated carbon will filter and intercept the fine particulate pollutants contained in the exhaust gas. The particulate matter adheres to the surface of the activated carbon, especially clogs the microporous structure of the activated carbon, which will reduce the specific surface area of the activated carbon. If it is not effectively cleaned, it will also affect the adsorption effect of the activated carbon. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a hot air exhaust purification device with waste heat that can be recovered and reused, which is used to solve the problems mentioned in the above background technology.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a hot air exhaust purification device with waste heat that can be recovered and reused, including a purification tower and an adsorption purification layer assembled in the purification tower; the adsorption purification layer includes: a hot air bin, which is cylindrical and fixed in the purification tower; a plurality of groups of circular holes are opened through the upper and lower ends of the hot air bin; a plurality of heat exchange tubes are arranged inside the hot air bin in a one-to-one correspondence with the plurality of groups of circular holes, and the two ends of the heat exchange tubes are connected to each other between two circular holes opposite to each other in the upper and lower ends of the hot air bin.

[0010] Multiple adsorption cylinders are independently filled with adsorption materials for purifying exhaust gas, and are plugged into multiple heat exchange cylinders one by one; when hot gas circulates in the hot gas bin, the adsorption materials in the adsorption cylinders are indirectly heated through the heat exchange cylinders; and a disturbing assembly for disturbing the materials is installed in the adsorption cylinders.

[0011] The driving mechanism is arranged to pass through the hot air bin and can be detachably docked with multiple material disturbance assemblies. In the docking state, the driving mechanism synchronously lifts and drives the multiple material disturbance assemblies, so that the material disturbance assemblies stir the material in a spiral lifting and reciprocating manner.

[0012] And the guide cover can be detachably installed on the top of the purification tower; the driving mechanism can also drive multiple adsorption barrels to rise synchronously. When the guide cover is removed and the material disturbance assembly is separated from the driving mechanism, the adsorption barrel can be taken out from the heat exchange barrel.

[0013] Preferably, the adsorption material cylinder includes a cylinder body capable of loading adsorption material and permeable to air flow, the cylinder body is cylindrical and plugged into the cylinder of the heat exchange cylinder in a contact manner; the material disturbing assembly is detachably installed in the cylinder body.

[0014] Preferably, the material disturbing assembly includes a guide cylinder detachably mounted in the cylinder body, and the guide cylinder is arranged vertically; a material disturbing piece for disturbing the material is mounted on the outer sleeve of the guide cylinder, and a driving component is installed in the guide cylinder along the axial sliding fit, the driving component is detachably docked with the driving mechanism, and the driving component is connected to the material disturbing piece; when the driving mechanism drives the driving component to rise and fall and slide in the guide cylinder, the driving component drives the material disturbing piece to rise and fall in a spiral manner on the guide cylinder.

[0015] Preferably, the driving assembly includes a base cylinder, a step is provided in the guide cylinder, the base cylinder is overlapped at the step, and the base cylinder and the upper part of the step in the guide cylinder are key-fitted and slidably assembled, and a docking shaft is installed in the base cylinder from top to bottom, which can be switched to a docking state with the driving mechanism through rotation; a driving sleeve is installed on the rotating sleeve outside the base cylinder; a track hole extending in axial rotation is opened on the wall of the guide cylinder, and a movable pin passing through the track hole and connected to the material disturbing member is fixed on the driving sleeve.

[0016] Preferably, the cylinder body includes a heat dissipation cylinder inserted into the heat exchange cylinder and a breathable plate fixed to the bottom end of the heat dissipation cylinder; the guide cylinder is detachably mounted on the breathable plate; the heat dissipation cylinder is provided with circumferentially distributed heat dissipation holes, and the inner wall of the heat exchange cylinder is provided with a heat dissipation groove corresponding to each heat dissipation hole along the top downward.

[0017] Preferably, the driving mechanism includes a main shaft that slides vertically through the center axis of the hot air warehouse, a flower frame horizontally fixed at the bottom end of the main shaft, and multiple plug-in shafts vertically fixed at the upper end of the flower frame; the top ends of the multiple plug-in shafts are docked one by one with the bottom ends of the multiple docking shafts.

[0018] Preferably, the upper and lower ends of the docking shaft are respectively fixed with a limit sleeve and a docking end head, and the upper and lower ends of the base tube are respectively in contact with the limit sleeve and the docking end head; a docking cavity is provided in the docking end head, and a plug hole communicating with the docking cavity is provided at the bottom end of the docking end head; a docking plug block that can pass through the plug hole and extend into the docking cavity is fixed to the top end of the plug shaft; when the docking shaft is rotated so that the plug hole and the docking plug block are misaligned, the docking plug block contacts the upper and lower inner end surfaces of the docking cavity.

[0019] Preferably, the deflector includes a channel plate detachably mounted on the top of the purification tower and a collecting cover fixed on the upper end of the channel plate; the channel plate is provided with a plurality of crimping tubes in a plurality of circular holes that pass through the purification tower and extend one-to-one to the top of the hot gas bin, the bottom end of the crimping tube is crimped on the corresponding heat dissipation tube, and the heat dissipation groove is located at the open end at the top of the heat dissipation tube and is located in the crimping tube.

[0020] Preferably, the material disrupting member comprises a driven sleeve sleeved on the guide cylinder, and the movable pin is plugged into the driven sleeve; and a plurality of material disrupting rods are detachably mounted on the side wall of the driven sleeve.

[0021] Preferably, the hot air bin includes a chassis and a cylindrical cover plugged into the chassis; the circular holes are relatively opened on the chassis and the top surface of the cylindrical cover; the heat exchange cylinder is plugged into the chassis and pressed between the cylindrical cover and the chassis.

[0022] The above technical solution has the following advantages or beneficial effects: the present invention provides a hot air exhaust gas purification device with waste heat that can be recycled and reused. It is based on the existing spray tower equipment and is equipped with an adsorption filter layer with activated carbon as the adsorption material to achieve combined purification; the adsorption filter layer is equipped with multiple adsorption barrels that can be dispersed for adsorption purification and can be quickly disassembled and replaced, and the multiple adsorption barrels are assembled in a hot air bin with hot air exhaust as the heat source. The moisture in the activated carbon due to the adsorption of exhaust gas water vapor can be dehumidified by indirect heating and evaporation. In addition, each adsorption barrel is equipped with a disturbing material that is easy to disassemble as a whole. The assembly is equipped with a driving mechanism that can be docked with each material disturbance assembly. The driving mechanism can drive the material disturbance assembly to fully disturb the activated carbon, and then promote the uniform and sufficient heating of the activated carbon through disturbance to improve the dehumidification efficiency, promote sufficient contact between the exhaust gas and the activated carbon to improve the adsorption effect, and drive the separation of particulate matter on the surface of the activated carbon to maintain the adsorption capacity; in summary, the device provided by the present invention maintains the continuity of the adsorption effect by heating and dehumidifying the activated carbon and fully disturbing it, thereby ensuring the adsorption and purification effect of the exhaust gas, extending the service life of the activated carbon, and reducing the frequency of replacing the activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0024] Figure 1 It is a three-dimensional structural diagram of a hot air exhaust gas purification device with waste heat recovery and reuse provided by the present invention.

[0025] Figure 2 It is a three-dimensional cross-sectional view of the adsorption purification layer.

[0026] Figure 3 It is a three-dimensional structural diagram of the assembly of the cylindrical cover and the chassis.

[0027] Figure 4 This is a three-dimensional structural diagram of the chassis.

[0028] Figure 5 It is a three-dimensional structural diagram of the heat exchange tube.

[0029] Figure 6 It is a three-dimensional structural diagram of the assembly of the adsorption barrel and the driving mechanism.

[0030] Figure 7 It is a three-dimensional cross-sectional view of the assembly of the deflector cover and the purification tower.

[0031] Figure 8 It is a three-dimensional cross-sectional view of the connection between the adsorption cylinder and the heat exchange cylinder, and the docking between the connecting shaft and the material disturbance assembly.

[0032] Figure 9 It is a three-dimensional structural diagram of the guide cylinder.

[0033] Figure 10 It is a three-dimensional cross-sectional view of the drive assembly.

[0034] Figure 11 It is a three-dimensional structural diagram of the assembly of the drive sleeve and the base cylinder.

[0035] Figure 12 It is a three-dimensional structural diagram of the docking shaft.

[0036] Figure 13 It is a three-dimensional structural diagram of the splice shaft.

[0037] In the figure: 1, purification tower; 11, positioning cylinder; 2, hot air chamber; 21, chassis; 211, positioning shaft; 212, annular slot; 213, positioning hole; 22, cylinder cover; 221, plug ring; 23, heat exchange cylinder; 231, positioning pin; 232, fin slot; 233, heat dissipation slot; 3, adsorption cylinder; 31, cylinder body; 32, breathable plate; 321, threaded sleeve; 33, heat dissipation cylinder; 331, heat dissipation hole; 332, fin; 4, material disturbance assembly; 41, guide cylinder; 411, track hole; 42, drive assembly; 4 3. Base tube; 431. Rotary cutting groove; 44. Docking shaft; 441. Docking end; 442. Docking cavity; 443. Insert hole; 444. Limit sleeve; 45. Drive sleeve; 46. Moving pin; 47. Disturbing piece; 471. Follower sleeve; 472. Ball; 473. Disturbing rod; 5. Driving mechanism; 51. Main shaft; 52. Flower frame; 53. Connecting shaft; 531. Docking insert; 532. Supporting ring; 6. Air guide cover; 61. Channel plate; 611. Crimping tube; 62. Converging cover; 621. Exhaust port. DETAILED DESCRIPTION

[0038] 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 The hot air exhaust purification device with waste heat recovery and reuse shown in the figure comprises a purification tower 1 and an adsorption purification layer assembled in the purification tower 1; in this embodiment, the purification tower 1 is specifically a spray tower, Figure 1 The purification tower 1 shown in the figure is a partial tower structure at the top. The spray tower is a common purification device for removing pollutants such as particulate matter and harmful gases in industrial exhaust gas. The purification tower 1 includes the corresponding structure in the existing spray tower; the adsorption purification layer provided in the present invention is arranged above the spray system in the purification tower 1, and is used for further adsorption and purification of the exhaust gas treated by the spray, and is used to remove incompletely purified particulate matter and harmful gases in the adsorption and purification exhaust gas.

[0041] like Figure 2 、 Figure 3 and Figure 4 As shown, the adsorption purification layer includes a cylindrical hot gas bin 2, which includes a chassis 21 and a cylindrical cover 22. The chassis 21 is circular, and a square positioning shaft 211 is welded at the center of the chassis 21. The cylindrical cover 22 is sleeved on the positioning shaft 211. In order to improve the assembly sealing between the cylindrical cover 22 and the chassis 21, an annular slot 212 is concentrically opened near the edge of the upper end surface of the chassis 21, and a plug-in ring 221 that cooperates with the annular slot 212 is welded at the bottom end of the cylindrical cover 22. The cylindrical cover 22 is plugged into the annular slot 212 through the plug-in ring 221 and overlapped on the chassis 21. The overlapping ends of the cylindrical cover 22 and the chassis 21 are fixed by screws. The side wall of the cylindrical cover 22 is in a sealed contact state with the inner wall of the purification tower 1, and the cylindrical cover 22 is fixed in the purification tower 1 by bolts.

[0042] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the chassis 21 is provided with four circular holes evenly distributed around the center circumference, and the top surface of the cylindrical cover 22 is also provided with four circular holes evenly distributed around the center circumference. The circular holes on the chassis 21 and the circular holes on the cylindrical cover 22 have the same diameter and are arranged one by one relative to each other to form four groups. The positioning shaft 211 plays a positioning role in the assembly between the cylindrical cover 22 and the chassis 21. Four heat exchange tubes 23 are arranged inside the hot gas warehouse 2, which correspond to multiple groups of circular holes. Four circumferentially evenly distributed positioning pins 231 are vertically welded to the bottom of the heat exchange tube 23. Four positioning holes 213 corresponding to the four positioning pins 231 are distributed around each circular hole on the chassis 21. The heat exchange tube 23 is plugged into the chassis 21 through the positioning pins 231. During assembly, the four heat exchange tubes 23 are first plugged into the chassis 21, and then the cylindrical cover 22 is assembled on the chassis 21. The upper and lower ends of the heat exchange tube 23 are clamped between the assembled cylindrical cover 22 and the chassis 21, and the heat exchange tube 23 is coaxially arranged between the circular hole of the cylindrical cover 22 and the circular hole of the chassis 21.

[0043] like Figure 2 、 Figure 5 、 Figure 6 and Figure 8As shown, each heat exchange cylinder 23 is correspondingly plugged into an adsorption material cylinder 3, which is independently filled with adsorption materials for purifying exhaust gas; the adsorption material cylinder 3 includes a cylinder body 31 that can load adsorption materials and can pass through airflow, the cylinder body 31 is cylindrical, and the cylinder body 31 includes a heat dissipation cylinder 33 and a breathable plate 32 welded to the bottom end of the heat dissipation cylinder 33; a plurality of fin grooves 232 and a plurality of heat dissipation grooves 233 are circumferentially distributed on the inner wall of the heat exchange cylinder 23, and the plurality of fin grooves 232 and the plurality of heat dissipation grooves 233 are evenly distributed and alternately distributed in the circumferential direction of the heat exchange cylinder 23, and the fin grooves 232 and the heat dissipation grooves 233 are open structures at the top of the heat exchange cylinder 23, and closed structures at the bottom; a plurality of fins 332 that can be plugged into the plurality of fin grooves 232 in a one-to-one manner are evenly distributed and welded on the outer wall of the heat dissipation cylinder 33, and the heat dissipation cylinder 33 is plugged into the heat exchange cylinder 23 through the fins 332, and the fins 332 and the fins The cooperation of the grooves 232 realizes the positioning, plug-in and assembly cooperation between the heat dissipation tube 33 and the heat exchange tube 23, while increasing the heat exchange contact surface. In order to further enhance the heat exchange effect, the outer wall of the heat exchange tube 23 is a circumferentially distributed multi-groove structure; the outer wall of the heat dissipation tube 33 is in contact with the inner wall of the heat exchange tube 23, and the top of the heat dissipation tube 33 is flush with the top of the heat exchange tube 23. A plurality of heat dissipation holes 331 are evenly distributed on the heat dissipation tube 33, and the plurality of heat dissipation holes 331 are evenly alternately distributed with the plurality of fins 332. The heat dissipation holes 331 are long strip hole structures, and the plurality of heat dissipation holes 331 are one-to-one correspondingly docked at the plurality of heat dissipation grooves 233, which can more evenly promote the evaporation of water vapor in the activated carbon with the hot air; the air permeable plate 32 is processed with air permeable holes for the exhaust gas to pass through, and the air permeable holes are evenly distributed on the air permeable plate 32. In this embodiment, the air permeable holes are extended holes, and the extended holes extend radially along the air permeable plate 32.

[0044] The above-mentioned adsorption material specifically refers to activated carbon. The inner cavity formed by the four heat exchange cylinders 23 in the hot gas bin 2 constitutes a cavity for hot gas circulation, and the four heat exchange cylinders 23 constitute four evenly distributed exhaust gas channels for exhaust gas to pass through; since the exhaust gas itself is hot air exhaust gas, in order to save energy, in this embodiment, the exhaust gas is directly used as the heat source for hot gas; air holes are opened through the cylindrical cover 22 along the diameter direction, and pipes are welded at the two air hole ends on the cylindrical cover 22. The pipes are not shown in the drawings. Both pipes pass through the purification tower 1, serving as an air inlet pipe and an air outlet pipe respectively. The exhaust gas enters the inner cavity of the hot gas bin 2 through the air inlet pipe, and is discharged from the air outlet pipe after circulation. In addition, the purification tower 1 is generally provided with an air inlet for introducing exhaust gas and spraying and purifying treatment near the bottom. The outlet pipe port and the air inlet can be connected to a pipe, that is, after the exhaust gas completes the waste heat utilization through the hot gas bin 2, it is immediately introduced into the purification tower 1 for spraying treatment.

[0045] Activated carbon is loaded in the adsorption material cylinder 3, and the adsorption material cylinder 3 is inserted in the heat exchange cylinder 23. When the exhaust gas after spraying treatment by the purification tower 1 passes through the exhaust channel, the exhaust gas passes through the activated carbon layer, and then the activated carbon can adsorb the residual pollutant gas in the exhaust gas and filter and intercept some of the remaining particulate pollutants. During the purification process of the activated carbon, the water vapor contained in the exhaust gas will also be adsorbed on the activated carbon, which increases the humidity of the activated carbon and weakens the adsorption effect. But at the same time, after the exhaust gas enters the hot gas warehouse 2, it circulates randomly in the chamber, and the cylinder 31 and the heat exchange cylinder 23 that are plugged in and contacted with each other together constitute a heat exchange medium, and then indirectly heat the activated carbon through heat conduction and heat radiation to promote the evaporation of water vapor and reduce the adsorption and adhesion of water vapor in the exhaust gas on the activated carbon to maintain the adsorption effect of the activated carbon.

[0046] It should be noted here that temperature, as a working environment condition of activated carbon, will also affect the adsorption of activated carbon. In the process of reducing the humidity of activated carbon by heating, if the temperature is too high, the physical structure characteristics of the activated carbon itself may be destroyed, the adsorption will be reduced, and the desorption will be enhanced, which will affect the adsorption and adhesion of gaseous pollutants. The purification tower 1 provided by the present invention is equipped with existing waste heat recovery equipment. The waste heat recovery equipment can be one of the heat exchange equipment such as shell and tube heat exchanger, plate heat exchanger, heat pipe heat exchanger and fin 332 heat exchanger. When purifying the exhaust gas generated in different industrial fields, if the temperature of the exhaust gas itself is relatively high, it will have a greater impact on the adsorption of activated carbon. The corresponding waste heat recovery equipment can be arranged and installed in the pipeline system before it is introduced into the hot gas bin 2. If the temperature of the exhaust gas itself is relatively low, it will basically not affect the adsorption of activated carbon. The exhaust gas can be directly introduced into the hot gas bin 2, and the waste heat recovery equipment can be arranged in the pipeline system between the outlet pipe and the air inlet.

[0047] In order to maintain the adsorption effect and service life of activated carbon, slow down the saturation rate and reduce the replacement frequency of activated carbon, such as Figure 6 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11As shown, the material disturbing assembly 4 can be detachably mounted on the air permeable disk 32 located in each cylinder 31 . A threaded sleeve 321 is integrally formed in the center of the breathable disk 32; the material disturbing assembly 4 includes a guide cylinder 41 threadedly connected in the threaded sleeve 321, and the guide cylinder 41 is coaxially arranged with the cylinder body 31; a driving component 42 is installed in the guide cylinder 41 along the axial sliding fit; the driving component 42 includes a base cylinder 43, a step is provided in the guide cylinder 41, the base cylinder 43 overlaps at the step, and the base cylinder 43 and the upper part of the step in the guide cylinder 41 are key-fitted and slidably assembled; a rotating groove 431 is processed on the base cylinder 43, and a driving sleeve 45 is rotatably installed on the base cylinder 43 at the rotating groove 431. The driving sleeve 45 is a half-assembled structure. When the two half structures of the driving sleeve 45 are sleeved on the base cylinder 43, they are welded to form an integral structure; a track hole 411 extending along the axial rotation is opened on the wall of the guide cylinder 41, and a moving pin 46 passing through the track hole 411 is welded on the driving sleeve 45.

[0048] like Figure 6 and Figure 8 As shown, the guide cylinder 41 is sheathed with a disturbing member 47 for disturbing the material; the disturbing member 47 includes a driven sleeve 471 sheathed on the guide cylinder 41. In order to reduce the friction resistance between the driven sleeve 471 and the outer wall of the guide cylinder 41, balls 472 are evenly distributed and embedded on the driven sleeve 471. The driven sleeve 471 is in rolling contact with the guide cylinder 41 through the balls 472, and the moving pin 46 is inserted through the driven sleeve 471; a plurality of disturbing rods 473 are threadedly connected to the side wall of the driven sleeve 471, and the plurality of disturbing rods 473 are evenly distributed in the circumferential direction and axial direction of the driven sleeve 471.

[0049] like Figure 1 、 Figure 6 and Figure 8 As shown, a drive mechanism 5 is also installed relative to the hot gas chamber 2, which jointly drives the four material-disrupting assemblies 4. The drive mechanism 5 includes a main shaft 51 that extends vertically through the positioning shaft 211 along the central axis of the hot gas chamber 2. The top end of the main shaft 51 can be docked and mounted on the output rod of the electric push rod, which can drive the main shaft 51 to slide vertically. The bottom end of the main shaft 51 is horizontally fixed with a flower frame 52 via bolts. The flower frame 52 is a cross structure containing four wing plates. In this embodiment, the electric push rod can be started intermittently. The upper end surface of each wing plate on the flower frame 52 is vertically fixed with a plug-in shaft 53 via bolts. The drive assembly 42 also includes a docking shaft 44 that extends vertically through the base tube 43. The top ends of the four plug-in shafts 53 are detachably docked and mounted on the bottom ends of the four docking shafts 44 in a one-to-one correspondence.

[0050] like Figure 6 、 Figure 8 、 Figure 10 、 Figure 12 and Figure 13As shown, the upper and lower ends of the docking shaft 44 are respectively fixed with a limit sleeve 444 and a docking end head 441. The top end of the docking shaft 44 is sleeved and fixed with the limit sleeve 444 by screws. The bottom end of the docking shaft 44 is integrally formed with a docking end head 441. The upper and lower ends of the base tube 43 are respectively in contact with the limit sleeve 444 and the docking end head 441, so that the docking shaft 44 is integrally assembled on the base tube 43. A rotating handle is also welded to the top of the limit sleeve 444. When the limit sleeve 444 is rotated, The docking shaft 44 is rotatable within the base tube 43. A docking cavity 442 is provided within the docking end 441, and an insert hole 443 is formed at the bottom end of the docking end 441, communicating with the docking cavity 442. A docking insert 531 is integrally formed at the top end of the plug shaft 53, which is capable of passing through the insert hole 443 and extending into the docking cavity 442. When the docking shaft 44 is rotated to misalign the insert hole 443 with the docking insert 531, the docking insert 531 contacts the upper and lower inner end surfaces of the docking cavity 442. To dock the docking shaft 44 with the insert shaft 53, the adsorption material cylinder 3 is integrally inserted into the heat exchange cylinder 23, so that the insert hole 443 of the docking shaft 44 is aligned with the docking insert 531. When the adsorption material cylinder 3 is fully inserted, the docking insert 531 is fully inserted into the docking cavity 442. Subsequently, the docking shaft 44 is rotated to lock the plug shaft 53 with the docking shaft 44.

[0051] like Figure 2 and Figure 7As shown, four positioning cylinders 11 are welded to the inner end face of the top of the purification tower 1, which are connected to the four circular holes of the cylindrical cover 22 in a one-to-one manner; the top of the purification tower 1 can also be detachably installed with a guide cover 6; the guide cover 6 includes a channel plate 61 that is detachably installed on the top of the purification tower 1 and a collecting cover 62 fixed to the upper end of the channel plate 61 by bolts; the lower end of the channel plate 61 is welded with four crimping cylinders 611 that are connected to the four positioning cylinders 11 in a one-to-one manner, and the bottom end of the crimping cylinder 611 is crimped onto the corresponding heat dissipation cylinder 33. Through crimping, it is ensured that the adsorption cylinder 3 is plugged into place in the heat exchange cylinder 23, and the adsorption cylinder 3 is pressed and fixed in the heat exchange cylinder 23; the heat dissipation groove 233 is located at the top open end of the heat dissipation cylinder 33 and is located in the crimping cylinder 611. A fixing seat passing through the center of the channel disk 61 is welded to the top center of the purification tower 1, and the electric push rod for driving the main shaft 51 can be fixed on the fixing seat; the confluence cover 62 is in the shape of an inverted funnel, and an exhaust port 621 is provided in the center of the confluence cover 62. After purification, the exhaust gas will eventually be discharged from the exhaust port 621, and the exhaust port 621 needs to be connected to the exhaust pipe. In this embodiment, the exhaust port 621 can be equipped with a docking pipe, and the docking pipe can be vertically telescopically slidably installed in the exhaust pipe, and a sliding seal is maintained between the docking pipe and the exhaust pipe. In addition, an electric rod can be installed on the exhaust pipe through a mounting bracket, and the output end of the electric rod is fixed to the confluence cover 62. The electric rod can drive the guide cover 6 to rise, so that the guide cover 6 is separated from the top of the purification tower 1. By descending, the guide cover 6 can be pressed and docked to the top of the purification tower 1.

[0052] In the process of further purifying the exhaust gas through the adsorption purification layer, the driving mechanism 5 is kept intermittently started. When the driving mechanism 5 is started, the electric push rod drives the main shaft 51 to slide back and forth vertically, and then drives the four plug-in shafts 53 to reciprocate and rise and fall synchronously. The plug-in shaft 53 drives the docking shaft 44 connected thereto, so that the driving component 42 slides back and forth vertically in the guide cylinder 41, and the moving pin 46 moves along the track hole 411 and synchronously drives the driven sleeve 471, so that the disturbing member 47 makes a spiral rise on the guide cylinder 41. The descending motion, the rotation of the disturbing member 47 can cause circumferential rotational disturbance to the activated carbon, and the lifting and lowering of the disturbing member 47 can cause vertical disturbance to the activated carbon. Through sufficient disturbance, firstly, the activated carbon can be in more uniform and sufficient contact with the exhaust gas, thereby improving the adsorption effect on the exhaust gas; secondly, the activated carbon can be heated more evenly, promoting the evaporation and discharge of moisture to maintain the adsorption capacity of the activated carbon; thirdly, it can drive the particulate matter filtered and intercepted on the surface of the activated carbon to fall to the bottom of the purification tower 1, which can also maintain the adsorption capacity of the activated carbon. In summary, on the basis of heating and dehumidifying the activated carbon, sufficient disturbance can extend the adsorption effect and service life of the activated carbon, maintain high efficiency, and reduce the frequency of replacement.

[0053] When the activated carbon needs to be replaced, it is only necessary to lift and separate the air guide 6 from the top of the purification tower 1, and then release the pressure of the air guide 6 on the heat dissipation cylinder 33, and synchronously push the four adsorption barrels 3 up through the driving mechanism 5, so that the adsorption barrel 3 moves upward from the heat exchange barrel 23 and passes through the positioning barrel 11. Then, the four adsorption barrels 3 can be taken out one by one, the saturated activated carbon is poured out, and replaced with new ones. Finally, the adsorption barrel 3 is plugged and assembled in the heat exchange barrel 23, and the air guide 6 is pressed against the top of the purification tower 1 again. It should be added here that in order to improve the stability of the plug-in shaft 53 pushing the adsorption barrel 3 upward, as shown in FIG. Figure 8 As shown, a supporting ring 532 is integrally formed on the plug-in shaft 53 . When the movable pin 46 moves to the highest position of the track hole 411 , the supporting ring 532 is just supported on the bottom end of the breathable disk 32 .

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0056] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A hot air exhaust purification device with waste heat recovery and reuse, characterized in that: It includes a purification tower and an adsorption purification layer installed in the purification tower; the adsorption purification layer includes: The hot gas bin is cylindrical and fixed in the purification tower; multiple groups of circular holes are opened through the upper and lower ends of the hot gas bin; multiple heat exchange tubes are arranged inside the hot gas bin in a one-to-one correspondence with the multiple groups of circular holes, and the two ends of the heat exchange tubes are connected between the two opposite circular holes in the hot gas bin; Multiple adsorption material cylinders are independently filled with adsorption materials for purifying exhaust gas, and are plugged into multiple heat exchange cylinders one by one. When hot gas circulates in the hot gas bin, it indirectly heats the adsorption materials in the adsorption material cylinders through the heat exchange cylinders. A disturbing material assembly for disturbing the material is installed in the adsorption material cylinders. The driving mechanism is arranged through the hot gas bin and can be detachably docked with multiple material disturbing assemblies. In the docking state, the driving mechanism synchronously lifts and drives the multiple material disturbing assemblies, so that the material disturbing assemblies stir the material in a spiral lifting and reciprocating manner. And the guide cover can be detachably installed on the top of the purification tower; the driving mechanism drives multiple adsorption barrels to rise synchronously. When the guide cover is removed and the disturbing assembly is separated from the driving mechanism, the adsorption barrel is taken out from the heat exchange barrel.

2. A hot air exhaust purification device with waste heat recovery and reuse according to claim 1, characterized in that: The adsorption material cylinder includes a cylinder body that can load adsorption material and is permeable to air flow. The cylinder body is cylindrical and is plugged into the cylinder of the heat exchange cylinder in a contact manner. The material disturbing assembly is detachably installed in the cylinder body.

3. A hot air exhaust purification device with waste heat recovery and reuse according to claim 2, characterized in that: The material disturbing assembly comprises a guide cylinder detachably mounted in the cylinder body, the guide cylinder being arranged vertically; a material disturbing piece for disturbing the material is sheathed on the outer surface of the guide cylinder, a driving assembly is axially slidably mounted in the guide cylinder, the driving assembly is detachably docked with the driving mechanism, and the driving assembly is connected to the material disturbing piece; When the driving mechanism drives the driving component to move up and down and slide in the guide cylinder, the driving component drives the material disturbing piece to move up and down in a spiral manner on the guide cylinder.

4. A hot air exhaust purification device with waste heat recovery and reuse according to claim 3, characterized in that: The driving assembly includes a base cylinder, a step is provided in the guide cylinder, the base cylinder is overlapped at the step, and the base cylinder and the upper part of the step in the guide cylinder are key-matched and slidably assembled, and a docking shaft is installed in the base cylinder from top to bottom, which can be switched to a docking state with the driving mechanism through rotation; a driving sleeve is installed on the rotating sleeve outside the base cylinder; a track hole extending in axial rotation is opened on the wall of the guide cylinder, and a moving pin is fixed on the driving sleeve that passes through the track hole and is connected to the material disturbing member.

5. A hot air exhaust purification device with waste heat recovery and reuse according to claim 3, characterized in that: The cylinder body includes a heat dissipation cylinder inserted into the heat exchange cylinder and a breathable plate fixed at the bottom end of the heat dissipation cylinder; the guide cylinder is detachably mounted on the breathable plate; the heat dissipation cylinder is provided with circumferentially distributed heat dissipation holes, and the inner wall of the heat exchange cylinder is provided with a heat dissipation groove corresponding to each heat dissipation hole along the top downward.

6. A hot air exhaust purification device with waste heat recovery and reuse according to claim 4, characterized in that: The driving mechanism includes a main shaft that slides vertically through the central axis of the hot air warehouse, a flower frame horizontally fixed to the bottom end of the main shaft, and multiple plug-in shafts vertically fixed to the upper end of the flower frame; the top ends of the multiple plug-in shafts are docked one by one with the bottom ends of the multiple docking shafts.

7. A hot air exhaust purification device with waste heat recovery and reuse according to claim 6, characterized in that: The upper and lower ends of the docking shaft are respectively fixed with a limit sleeve and a docking end head, and the upper and lower ends of the base tube are respectively in contact with the limit sleeve and the docking end head; a docking cavity is provided in the docking end head, and a plug hole communicating with the docking cavity is provided at the bottom end of the docking end head; a docking plug block that can pass through the plug hole and extend into the docking cavity is fixed to the top end of the plug shaft; when the docking shaft is rotated so that the plug hole and the docking plug block are misaligned, the docking plug block contacts the upper and lower inner end surfaces of the docking cavity.

8. A hot air exhaust purification device with waste heat recovery and reuse according to claim 5, characterized in that: The deflector includes a channel plate that is detachably mounted on the top of the purification tower and a converging cover fixed on the upper end of the channel plate; the channel plate is provided with a plurality of crimping tubes in a plurality of circular holes that pass through the purification tower and extend one-to-one to the top of the hot gas bin, the bottom end of the crimping tube is crimped onto the corresponding heat dissipation tube, and the heat dissipation groove is located at the open end at the top of the heat dissipation tube and is located in the crimping tube.

9. A hot air exhaust purification device with waste heat recovery and reuse according to claim 4, characterized in that: The material disrupting member comprises a driven sleeve sleeved on the guide cylinder, a movable pin is plugged into the driven sleeve; and a plurality of material disrupting rods are detachably mounted on the side wall of the driven sleeve.

10. A hot air exhaust purification device with waste heat recovery and reuse according to claim 1, characterized in that: The hot air bin includes a chassis and a cylindrical cover plugged into the chassis; the circular holes are relatively opened on the chassis and the top surface of the cylindrical cover; the heat exchange cylinder is plugged into the chassis and pressed between the cylindrical cover and the chassis.

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