Efficient sludge drying treatment device based on fluidized bed and rotary suspension

Abstract

The invention relates to the technical field of sludge purification treatment, in particular to an efficient sludge drying treatment device based on a fluidized bed and rotary suspension, which comprises a shell, a drying support unit is obliquely arranged in the shell, the drying support unit comprises a main mounting plate, a plurality of groups of drying units are movably mounted in the main mounting plate, and a plurality of groups of drying units are movably mounted in the main mounting plate. A total feeding port is formed in the shell, a total discharging port is formed in a port of one end, far away from the total feeding port, of the shell, a plurality of component feeding ports with the same number as the drying units are formed in the total feeding port, during working, even if one or more groups of drying barrels break down or need to be maintained, the drying work is not affected, and the drying efficiency is improved. The height of the end, close to the drying feeding port, of the discharging channel is larger than that of the other end of the discharging channel, the width of the end, close to the drying channel, of the discharging channel is larger than that of the other end of the discharging channel, and therefore sludge can be automatically and flatly laid, heat is evenly collected, mutual accumulation is avoided, and the drying effect is improved while the continuity is improved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater purification and treatment technology, and specifically relates to a high-efficiency sludge drying treatment device based on fluidized bed and rotary suspension. Background Technology

[0002] During wastewater treatment, a large amount of sludge is generated due to the precipitation of harmful substances. This sludge contains a large amount of harmful substances and also needs to be purified. In order to decompose the harmful substances, the sludge must first be horizontally dried using a fluidized bed and pulverized into powder.

[0003] A search revealed a patent document with publication number CN119797722A, published on April 11, 2025, entitled "Integrated Sludge Drying Treatment Method and Apparatus," which includes a drying combustion unit, a flue gas distribution unit, and a sludge drying unit. The drying combustion unit includes a fluidized bed incinerator for burning dried sludge particles. The flue gas distribution unit includes a horizontal flue for conveying the tail flue gas from the fluidized bed incinerator, and two or more sludge drying system distribution flues vertically downwards on the horizontal flue. The sludge drying unit is used to distribute the tail flue gas... Heat exchange air is blown into the heat exchange chamber of each sludge drying system, causing the suspended wet sludge to enter a rotating suspension state and complete heat exchange, forming dried sludge particles. The sludge drying unit includes a fluidized bed dryer, a bag filter and a feeding unit corresponding to the fluidized bed dryer, and a discharge unit corresponding to the bag filter. The fluidized bed dryer includes a heat exchange chamber with a heat exchange air inlet on one side, and the heat exchange air is blown in horizontally. An upward air duct for the particles is provided at the top of the heat exchange chamber in the fluidized bed sludge dryer. This embodiment not only achieves uniform distribution of hot flue gas but also successfully collects clean flue gas, solving the flue gas distribution problem when multiple drying systems operate in parallel.

[0004] However, the above embodiments still have the following drawbacks: The fluidized bed in the above embodiments has a conventional structure, which reduces the contact area between the sludge and hot air. Furthermore, when the sludge is highly viscous, it easily accumulates, requiring manual spreading and thus reducing the drying effect. Simultaneously, maintenance requires shutting down the entire equipment, impacting operational efficiency. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a high-efficiency sludge drying treatment device based on fluidized bed and rotary suspension, comprising a shell, wherein a drying support unit is inclinedly arranged inside the shell, the drying support unit includes a main mounting plate, and a plurality of drying units are movably installed inside the main mounting plate; a main discharge port is opened on the end of the shell away from the main feed port, and a plurality of component feed ports, the same number as the number of drying units, are provided on the main feed port; The drying unit includes a drying cylinder with a discharge channel inside. A drying inlet is located at the top of one end of the discharge channel. The end of the discharge channel away from the drying inlet is connected to the drying channel. The top of the discharge channel is inclined, and the height of the end near the drying inlet is higher than that of the other end. The width of the end of the discharge channel away from the drying inlet is greater than the width of the end near the drying inlet.

[0006] Furthermore, a main discharge port is provided on the end of the shell away from the feed inlet, and an exhaust port is provided on the top of the shell; the bottom of the sub-feed inlet is connected to a sub-discharge hopper, and the bottom of each sub-discharge hopper is connected to a corresponding set of drying feed inlets.

[0007] Furthermore, a support vibration unit is installed on the housing. The support vibration unit includes a support plate, which is installed at the bottom of the housing. Two sets of fixing plates are symmetrically arranged at the edges of the two side walls of the support plate.

[0008] Furthermore, each of the two sets of fixed plates has a set of side plates on both sides, and the side plates have several sets of vertical sliding grooves opened along the horizontal direction; a lifting rod is slidably connected in the vertical sliding groove, and a set of hydraulic springs is fixedly installed at the upper and lower ends of the lifting rod, and the other ends of the two sets of hydraulic springs are respectively installed on the inner walls of the upper and lower ends of the vertical sliding groove.

[0009] Furthermore, one end of the lifting rod is fixedly installed at the bottom of the pallet, and the other end of the lifting rod is equipped with an anti-detachment disc, the diameter of which is larger than the width of the vertical sliding groove; a vibration motor is fixedly installed at the center of the bottom of the pallet.

[0010] Furthermore, the outer walls on both sides of the main mounting plate are fixedly connected to the inner walls on both sides of the housing; the main mounting plate has a number of mounting slots arranged at equal intervals along the horizontal direction, the same number as the drying units, and a feeding through hole is opened at the top of the edge of the mounting slot near the main feed inlet.

[0011] Furthermore, both ends of the installation channel are open structures, and a drying cylinder clamping plate is provided at one end near the feed through hole; each set of drying cylinders is located in a corresponding set of installation channels, one end of the drying cylinder is movably clamped to the drying cylinder clamping plate, and the other end of the drying unit extends outside the installation channel.

[0012] Furthermore, the top of the installation channel is provided with an external vent, the bottom of which is connected to the cavity of a corresponding set of drying cylinders, and an external insertion hole is provided on one side of the external vent.

[0013] Furthermore, the top of the drying cylinder is provided with an inner vent, the top of which is connected to an outer vent; an inner insertion hole is provided on one side of the inner vent, the top of which is connected to an outer insertion hole.

[0014] Furthermore, several sets of heat supply columns are evenly distributed in the drying channel. The top view of the heat supply column is an isosceles triangle, and the tip faces the discharge channel side. The heat supply column is hollow and the top is connected to the heat receiving pipe. Several sets of heat spray heads are arranged at equal intervals on the inner wall of the top of the drying channel. Each heat spray head has a hemispherical structure and its input end is connected to a heat receiving pipe. Several sets of heat spray nozzles are evenly distributed on the surface of the heat spray head.

[0015] The beneficial effects of this invention are: 1. The traditional drying bed is replaced with several sets of detachable drying cylinders, which is simple, quick, and easy to maintain. The material discharge is also designed with separate feed inlets. When one set of drying cylinders needs maintenance, simply close the corresponding feed inlet, and the sludge will automatically flow into other channels. Automatic material distribution requires minimal setup. Even if one or more sets of drying cylinders malfunction or require maintenance, the drying process remains unaffected, improving the continuity of the system. Furthermore, the height and width of the discharge channel near the feed inlet are greater than the other end, allowing the sludge to spread automatically and heat evenly, preventing accumulation and improving both continuity and drying efficiency.

[0016] 2. Because the heat spray head has a hemispherical structure and each group of heat spray nozzles is evenly distributed on the heat spray head, the hot air can be sprayed radially onto the sludge, so that the sludge in all directions receives equal heat, thereby improving the uniformity of heating.

[0017] 3. When the sludge moves in the drying channel, it will come into contact with each set of heating columns. Since the top view of the heating column is an isosceles triangle and the tip faces the discharge channel side, and since the heating column is hollow, the sludge can not only come into direct contact with heat energy during movement, but also use vibration and tilting to make the sludge impact with the tip, crushing larger volumes of sludge. Then, the two sides are used to quickly divert the flow, which not only improves the heating effect, but also further enhances the auxiliary effect of crushing.

[0018] 4. First, hot air is supplied into the shell through the exhaust port to heat the drying cylinder from the outside. Then, the heat transfer head passes through the outer and inner insertion holes in sequence, extending into the top inner cavity and supplying hot air into the heat receiving pipe. Finally, the hot air is transported to the discharge channel and drying channel by each set of heat spray heads and heat delivery columns. Due to the arc-shaped characteristics of the return flow surface, the heat energy forms a reflux within the shell and repeatedly acts on the drying cylinder, thereby improving the heating quality.

[0019] 5. As the pallet vibrates up and down, it drives each set of lifting rods to slide back and forth regularly within the vertical grooves. Under the action of two sets of hydraulic springs, the pallet is buffered when it reaches its highest and lowest points. Furthermore, the vertical grooves and lifting rods are arranged at equal intervals on both sides of the pallet, and with the anti-detachment disc limiting function, the overall force on the pallet is more even, and it always moves in the vertical direction, preventing the shell from tilting or shifting. This not only ensures the regularity of sludge movement but also reduces the safety hazards of the shell during vibration.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the drying treatment apparatus according to an embodiment of the present invention is shown.

[0023] Figure 2 A cross-sectional schematic diagram of a drying treatment apparatus according to an embodiment of the present invention is shown.

[0024] Figure 3 A schematic diagram of the structure of the support vibration unit according to an embodiment of the present invention is shown.

[0025] Figure 4 A schematic diagram of the structure of the drying support unit according to an embodiment of the present invention is shown.

[0026] Figure 5 A rear view schematic diagram of a drying support unit according to an embodiment of the present invention is shown.

[0027] Figure 6A schematic diagram of the structure of the drying unit according to an embodiment of the present invention is shown.

[0028] Figure 7 A cross-sectional schematic diagram of a drying cylinder according to an embodiment of the present invention is shown.

[0029] Figure 8 A right-side schematic view of a drying cylinder according to an embodiment of the present invention is shown.

[0030] Figure 9 A schematic diagram of the structure of the heat delivery column according to an embodiment of the present invention is shown.

[0031] Figure 10 An embodiment of the present invention is shown. Figure 7 Enlarged diagram of circle A in the middle.

[0032] In the diagram: 100, shell; 101, return arc surface; 110, main feed inlet; 111, branch feed inlets; 112, branch discharge hopper; 120, exhaust port; 130, first heat outlet; 140, heat transfer head; 150, main discharge port; 200, supporting vibration unit; 210, pallet; 220, fixing plate; 230, side plate; 240, vertical slide groove; 250, lifting rod; 251, anti-detachment disc; 260, hydraulic spring; 270, vibration motor; 300, drying support unit; 310, main... Mounting plate; 320, Mounting slot; 330, Feed through hole; 340, Drying cylinder clamping plate; 350, External air vent; 360, External insertion hole; 400, Drying unit; 410, Drying cylinder; 411, Internal air vent; 412, Internal insertion hole; 420, Drying feed inlet; 430, Drying discharge outlet; 440, Discharge channel; 450, Drying channel; 460, Heating column; 470, Heat spray head; 471, Heat spray nozzle; 480, Top inner cavity; 490, Heat connection pipe; 500, Hot gas preparation device. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This invention provides a high-efficiency sludge drying device based on fluidized bed and rotary suspension, exemplarily, such as... Figure 1 and Figure 2As shown, the device includes a housing 100, a main feed inlet 110 is provided at the top edge of one end of the housing 100, a main discharge outlet 150 is provided at the end of the housing 100 away from the feed inlet 110, and an exhaust outlet 120 is provided at the top of the housing 100.

[0035] Specifically, a hot gas generating device 500 is provided on one side of the housing 100.

[0036] For example, the inner walls of the top and bottom of the housing 100 are both configured as reflux arc surfaces 101, and a plurality of first heat outlets 130 are evenly distributed on the reflux arc surfaces 101. The input end of the first heat outlet 130 is connected to the output end of the hot gas generating device 500.

[0037] For example, a drying support unit 300 is provided inside the housing 100. The drying support unit 300 is inclined, and the end near the main feed inlet 110 is higher than the other end. Several groups of drying units 400 are arranged at equal intervals along the horizontal direction inside the drying support unit 300, and the drying units 400 are movably connected to the drying support unit 300. The output end of the drying unit 400 is located directly above the main discharge outlet 150. The drying unit 300 is used to dewater and dry the sludge while it is moving. The drying support unit 300 is used to fix the drying unit 400 as a whole.

[0038] For example, the main feed inlet 110 is provided with a number of component feed inlets 111 equal to the number of drying units 400. The bottom of each component feed inlet 111 is connected to a component discharge hopper 112. The bottom of the component discharge hopper 112 passes through the main body of the drying support unit 300 and is connected to the input end of a corresponding set of drying units 400.

[0039] The inner wall of the top of the housing 100 is movably mounted with a number of heat transfer heads 140, the same number as the drying units 400. The output end of the heat transfer head 140 passes through the main body of the drying support unit 300 via a flexible hose and is connected to the cavity of the corresponding drying unit 400.

[0040] For example, a support vibration unit 200 is installed on the housing 100. The support vibration unit 200 is used to drive the housing 100 to vibrate, thereby causing the sludge to move and thus forming a fluid movement state.

[0041] For example, such as Figure 3As shown, the supporting vibration unit 200 includes a support plate 210, which is fixedly installed at the bottom of the housing 100. Two sets of fixing plates 220 are symmetrically arranged at the edges of the two side walls of the support plate 210. A set of side plates 230 is provided on each side of the two sets of fixing plates 220. Several sets of vertical sliding grooves 240 are formed on the side plates 230 along the horizontal direction. A lifting rod 250 is slidably connected in the vertical sliding groove 240. A set of hydraulic springs 260 is fixedly installed at the upper and lower ends of the lifting rod 250, and the other ends of the two sets of hydraulic springs 260 are respectively installed on the inner walls of the upper and lower ends of the vertical sliding groove 240.

[0042] For example, one end of the lifting rod 250 is fixedly installed at the bottom of the tray 210, and the other end of the lifting rod 250 is equipped with an anti-detachment disc 251, the diameter of which is larger than the width of the vertical sliding groove 240. A vibration motor 270 is fixedly installed at the center of the bottom of the tray 210.

[0043] First, the sludge is poured into the shell 100 through the main feed inlet 110 and falls into each group of drying units 400. Then, the hot air preparation device 500 is turned on and generates hot air. The hot air then enters the shell 100 through the first heat outlet 130 of each group, which raises the shell temperature of the drying unit 400 and allows the heat energy to act on the sludge, thereby drying the sludge. The water vapor and the cold air generated through heat exchange are discharged through the exhaust port 120.

[0044] During the drying process, the vibration motor 270 is started, which drives the pallet 210, the shell 100, and the drying support unit 300 to vibrate regularly up and down. This allows the sludge to be spread evenly on the surface of the drying unit 400 and move towards the main discharge port 150 under the action of vibration. This realizes the functions of automatic material spreading and transportation.

[0045] While the pallet 210 vibrates up and down, it drives each set of lifting rods 250 to slide back and forth regularly within the vertical sliding grooves 240. Under the action of the upper and lower sets of hydraulic springs 260, the pallet 210 is buffered when it reaches its highest and lowest points. Furthermore, the vertical sliding grooves 240 and lifting rods 250 are arranged at equal intervals on both sides of the pallet 210. Combined with the anti-detachment disc 251 for limiting movement, this ensures that the overall force on the pallet 210 is more even, and that it always moves in the vertical direction, preventing the housing 100 from tilting or shifting. This not only ensures the regularity of sludge movement but also reduces the safety hazards of the housing 100 during vibration.

[0046] For example, such as Figure 4 and Figure 5As shown, the drying support unit 300 includes a main mounting plate 310, whose two outer walls are fixedly connected to the two inner walls of the housing 100. The main mounting plate 310 has several sets of mounting slots 320 arranged at equal intervals along the horizontal direction, the same number as the drying units 400. Each mounting slot 320 has a feed hole 330 at its top edge near the main feed inlet 110. Both ends of the mounting slot 320 are open structures, and a drying cylinder clamping plate 340 is provided at one end near the feed hole 330. Each drying unit 400 is located within a corresponding set of mounting slots 320. One end of the drying unit 400 is movably clamped onto the drying cylinder clamping plate 340, and the other end of the drying unit 400 extends outside the mounting slot 320.

[0047] Specifically, the top of the mounting slot 320 is provided with an external vent 350, the bottom of the external vent 350 is connected to the cavity of the corresponding set of drying units 400, and an external insertion hole 360 ​​is provided on one side of the external vent 350. The external insertion hole 360 ​​is located directly below the corresponding set of heat transfer heads 140, the heat transfer head 140 passes through the external insertion hole 360, and is movably connected to the set of drying units 400 directly below.

[0048] For example, such as Figure 6 , Figure 7 and Figure 8 As shown, the drying unit 400 includes a drying cylinder 410, the top of which has an inner air vent 411, the top of which is connected to an outer air vent 350. An inner insertion hole 412 is provided on one side of the inner air vent 411, the top of which is connected to an outer insertion hole 360.

[0049] For example, the drying cylinder 410 has a discharge channel 440, and a drying inlet 420 is provided at the top of one end of the discharge channel 440. The top of the drying inlet 420 is connected to a corresponding set of feed hoppers 112 through a feed through hole 330. The end of the discharge channel 440 away from the drying inlet 420 is connected to a drying channel 450. The end of the drying channel 450 away from the discharge channel 440 has a drying outlet 430. A locking block is provided at the end of the drying cylinder 410 away from the drying outlet 430, and the locking block is movably engaged with the drying cylinder locking plate 340.

[0050] For example, the top of the discharge channel 440 is inclined, and the height of the end near the drying inlet 420 is higher than that of the other end. The width of the end of the discharge channel 440 away from the drying inlet 420 is greater than the width of the end near the drying inlet 420.

[0051] For example, a top inner cavity 480 is provided directly above the drying channel 450, and a heat receiving pipe 490 is fixedly installed in the top inner cavity 480. The input end of the heat receiving pipe 490 is located directly below the inner insertion hole 412. The heat transfer head 140 passes through the outer insertion hole 360 ​​and the inner insertion hole 412 in sequence and is movably connected in the heat receiving pipe 490.

[0052] For example, such as Figure 9 As shown, several sets of heat delivery columns 460 are evenly distributed in the drying channel 450. The top view of the heat delivery column 460 is an isosceles triangle, and the tip faces the discharge channel 440. The heat delivery column 460 is hollow and its top is connected to the heat receiving pipe 490.

[0053] Specifically, a number of heat spray heads 470 are arranged at equal intervals on the inner wall of the top of the drying channel 450. Each heat spray head 470 has a hemispherical structure, and its input end is connected to the heat receiving pipe 490. Furthermore, a number of heat spray nozzles 471 are evenly distributed on the surface of each heat spray head 470.

[0054] First, the hot air preparation device 500 is turned on, and hot air is first supplied into the shell 100 through the exhaust port 120 to heat the drying cylinder 410 from the outside. Then, the heat transfer head 140 passes through the outer insertion hole 360 ​​and the inner insertion hole 412 in sequence, and extends into the top inner cavity 480, supplying hot air into the heat receiving pipe 490. Finally, the hot air is transported to the discharge channel 440 and the drying channel 450 by the various groups of heat spray heads 470 and heat delivery columns 460. The vibration motor 270 is turned on, which drives the shell 100 and the main mounting plate 310 to vibrate, and then the main mounting plate 310 drives the various groups of drying cylinders 410 to vibrate. When the sludge enters its respective discharge channel 440 through the respective group feed inlets 111 and discharge hoppers 112, under the action of vibration and the inclined setting of the main mounting plate 310, the sludge can move towards the drying discharge port 430.

[0055] Because the top of the discharge channel 440 is sloped, and the height of the end near the drying inlet 420 is greater than the height of the side near the drying channel 450, and the width of the discharge channel 440 near the drying channel 450 is greater than the width of the other end, the sludge, after entering the discharge channel, will gradually and automatically spread evenly on the bottom inner wall of the discharge channel 440 with vibration, allowing the sludge to pass evenly through the drying channel 450. During passage, due to external heating and the hot air emitted from the various heat nozzles 470, the already spread sludge can come into uniform contact with heat energy from both inside and outside, thereby quickly evaporating the moisture in the sludge, drying the sludge, and breaking it into powder under vibration.

[0056] After drying, the sludge falls from the drying outlet 430 onto the main outlet 150 and is then discharged from the main outlet 150, while the evaporated water vapor is discharged through the internal vent 411, the external vent 350 and the exhaust port 120.

[0057] The traditional drying bed is replaced with several sets of detachable drying cylinders 410, which is simple, quick, and easy to maintain. The material discharge is also designed with separate feed inlets 111. When one set of drying cylinders 410 needs maintenance, simply close the corresponding feed inlet 111, and the sludge will automatically flow into other channels. Automatic material distribution requires minimal setup. Even if one or more sets of drying cylinders 410 malfunction or require maintenance, the drying process remains unaffected, improving the continuity of the equipment. Furthermore, the height of the discharge channel 440 near the drying feed inlet 420 is greater than the other end, and the width of the discharge channel 440 near the drying channel 450 is greater than the other end, allowing the sludge to be automatically spread evenly and heated uniformly, preventing accumulation and improving both continuity and drying efficiency.

[0058] Because the heat spray head 470 has a hemispherical structure and each set of heat spray nozzles 471 is evenly distributed on the heat spray head 470, hot air can be sprayed radially onto the sludge, so that the sludge in all directions receives equal heat, thereby improving the uniformity of heating.

[0059] When the sludge moves within the drying channel 450, it comes into contact with each set of heating columns 460. Since the top view of the heating column 460 is an isosceles triangle with its tip facing the discharge channel 440, and since the heating column 460 is hollow, the sludge can not only come into direct contact with heat energy during movement, but also impact the tip using vibration and tilting, crushing larger volumes of sludge. Then, the sludge is rapidly diverted between the two sides, which not only improves the heating effect, but also further enhances the auxiliary effect of crushing.

[0060] First, hot air is supplied into the shell 100 through the exhaust port 120 to heat the drying cylinder 410 from the outside. Then, the heat transfer head 140 passes through the outer insertion hole 360 ​​and the inner insertion hole 412 in sequence, extending into the top inner cavity 480 and supplying hot air into the heat receiving pipe 490. Finally, the hot air is transported by each set of heat spray heads 470 and heat delivery columns 460 to the discharge channel 440 and the drying channel 450. Due to the arc-shaped characteristics of the return flow arc surface 101, the heat energy forms a return flow within the shell 100 and repeatedly acts on the drying cylinder 410, thereby improving the heating quality.

[0061] The above embodiments have the following beneficial effects: 1. The traditional drying bed is replaced with several sets of detachable drying cylinders 410, which is simple, quick, and easy to maintain. The material discharge is also designed with separate feed inlets 111. When one set of drying cylinders 410 needs maintenance, simply close the corresponding feed inlet 111, and the sludge will automatically enter other channels. Automatic material distribution is achieved without extensive setup. Even if one or more sets of drying cylinders 410 malfunction or require maintenance, the drying operation will not be affected, improving the continuity of the device's operation. Furthermore, the height of the discharge channel 440 near the drying feed inlet 420 is greater than the other end, and the width of the discharge channel 440 near the drying channel 450 is greater than the other end, allowing the sludge to be automatically spread evenly and heated uniformly, preventing accumulation and improving both continuity and drying efficiency.

[0062] 2. Since the heat spray head 470 has a hemispherical structure and each group of heat spray nozzles 471 is evenly distributed on the heat spray head 470, the hot air can be sprayed radially onto the sludge, so that the sludge in all directions receives equal heat, thereby improving the uniformity of heating.

[0063] 3. When the sludge moves in the drying channel 450, it will come into contact with each group of heating columns 460. Since the top view of the heating column 460 is an isosceles triangle and the tip faces the discharge channel 440, and since the heating column 460 is hollow, the sludge can not only come into direct contact with heat energy during movement, but also use vibration and tilting to make the sludge impact with the tip, crushing larger volumes of sludge. Then, the two sides are used to quickly divert the flow, which not only improves the heating effect, but also further enhances the auxiliary effect of crushing.

[0064] 4. First, hot air is supplied into the shell 100 through the exhaust port 120 to heat the drying cylinder 410 from the outside. Then, the heat transfer head 140 passes through the outer insertion hole 360 ​​and the inner insertion hole 412 in sequence, extending into the top inner cavity 480 and supplying hot air into the heat receiving pipe 490. Finally, the hot air is transported by each set of heat spray heads 470 and heat delivery column 460 to the discharge channel 440 and the drying channel 450. Due to the arc-shaped characteristics of the return flow arc surface 101, the heat energy forms a return flow within the shell 100 and repeatedly acts on the drying cylinder 410, thereby improving the heating quality.

[0065] 5. As the pallet 210 vibrates up and down, it drives each set of lifting rods 250 to slide back and forth regularly within the vertical sliding grooves 240. Under the action of the upper and lower sets of hydraulic springs 260, the pallet 210 is buffered when it reaches its highest and lowest points. Furthermore, the vertical sliding grooves 240 and lifting rods 250 are arranged at equal intervals on both sides of the pallet 210. Combined with the anti-detachment disc 251 for limiting movement, this ensures that the overall force on the pallet 210 is more even, and that it always moves in the vertical direction, preventing the housing 100 from tilting or shifting. This not only ensures the regularity of sludge movement but also reduces the safety hazards of the housing 100 during vibration.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-efficiency sludge drying treatment device based on fluidized bed and rotary suspension, comprising a shell (100), characterized in that: A drying support unit (300) is inclinedly arranged inside the housing (100). The drying support unit (300) includes a main mounting plate (310). Several sets of drying units (400) are movably installed inside the main mounting plate (310). A main discharge port (150) is opened on one end of the housing (100) away from the main feed port (110). Several component feed ports (111) are provided on the main feed port (110) in the same number as the drying units (400). The drying unit (400) includes a drying cylinder (410), a discharge channel (440) is provided inside the drying cylinder (410), a drying inlet (420) is provided at the top of one end of the discharge channel (440), and a drying channel (450) is connected to the end of the discharge channel (440) away from the drying inlet (420). The top of the discharge channel (440) is inclined, and the height of the end near the drying inlet (420) is higher than that of the other end. The width of the end of the discharge channel (440) away from the drying inlet (420) is greater than the width of the end near the drying inlet (420).

2. The efficient sludge drying treatment device based on fluidized bed and rotary suspension according to claim 1, characterized in that: The housing (100) has a main outlet (150) on one end of the housing (100) away from the feed inlet (110), and an exhaust port (120) is provided on the top of the housing (100); the bottom of the sub-feed inlet (111) is connected to a sub-feed hopper (112), and the bottom of each sub-feed hopper (112) is connected to a corresponding set of drying feed inlets (420).

3. The efficient sludge drying device based on fluidized bed and rotary suspension according to claim 1, characterized in that: A support vibration unit (200) is installed on the housing (100). The support vibration unit (200) includes a support plate (210). The support plate (210) is installed at the bottom of the housing (100). Two sets of fixing plates (220) are symmetrically arranged at the edges of the two side walls of the support plate (210).

4. The efficient sludge drying treatment device based on fluidized bed and rotary suspension according to claim 3, characterized in that: Each of the two sets of fixed plates (220) has a set of side plates (230) on both sides. Several sets of vertical sliding grooves (240) are opened on the side plates (230) along the horizontal direction. A lifting rod (250) is slidably connected in the vertical sliding groove (240). A set of hydraulic springs (260) is fixedly installed at the upper and lower ends of the lifting rod (250). The other ends of the two sets of hydraulic springs (260) are respectively installed on the inner walls of the upper and lower ends of the vertical sliding groove (240).

5. The efficient sludge drying treatment device based on fluidized bed and rotary suspension according to claim 4, characterized in that: One end of the lifting rod (250) is fixedly installed at the bottom of the tray (210), and the other end of the lifting rod (250) is equipped with an anti-detachment disc (251). The diameter of the anti-detachment disc (251) is greater than the width of the vertical sliding groove (240). A vibration motor (270) is fixedly installed at the center of the bottom of the tray (210).

6. The efficient sludge drying device based on fluidized bed and rotary suspension according to claim 1, characterized in that: The outer walls on both sides of the main mounting plate (310) are fixedly connected to the inner walls on both sides of the housing (100); the main mounting plate (310) has a number of mounting slots (320) arranged at equal intervals along the horizontal direction, the same number as the drying unit (400); the mounting slots (320) have a feeding through hole (330) at the top of one end edge near the main feed inlet (110).

7. The efficient sludge drying treatment device based on fluidized bed and rotary suspension according to claim 6, characterized in that: Both ends of the mounting slot (320) are open structures, and a drying cylinder clamping plate (340) is provided at one end near the feed through hole (330); each set of drying cylinders (410) is located in a corresponding set of mounting slots (320), one end of the drying cylinder (410) is movably clamped on the drying cylinder clamping plate (340), and the other end of the drying unit (400) extends outside the mounting slot (320).

8. The efficient sludge drying device based on fluidized bed and rotary suspension according to claim 7, characterized in that: The top of the installation channel (320) is provided with an external air vent (350), the bottom of the external air vent (350) is connected to the cavity of a corresponding set of drying cylinders (410), and an external insertion hole (360) is provided on one side of the external air vent (350).

9. The efficient sludge drying device based on fluidized bed and rotary suspension according to claim 8, characterized in that: The drying cylinder (410) has an inner air vent (411) at the top, and the top of the inner air vent (411) is connected to the outer air vent (350); an inner insertion hole (412) is provided on one side of the inner air vent (411), and the top of the inner insertion hole (412) is connected to the outer insertion hole (360).

10. The efficient sludge drying treatment device based on fluidized bed and rotary suspension according to claim 1, characterized in that: Several sets of heat delivery columns (460) are evenly distributed in the drying channel (450). The top view of the heat delivery column (460) is an isosceles triangle, and the tip faces the discharge channel (440). The heat delivery column (460) is hollow and the top is connected to the heat receiving pipe (490). The drying channel (450) has several sets of heat spray heads (470) arranged at equal intervals on the inner wall of the top. The heat spray head (470) has a hemispherical structure and the input end of the heat spray head (470) is connected to the heat receiving pipe (490). The surface of the heat spray head (470) has several sets of heat spray nozzles (471) evenly distributed.

Images