Sludge drying and recycling equipment

Abstract

The utility model relates to the technical field of sludge drying, and discloses sludge drying and recycling equipment which comprises a rotary supporting assembly, a drying cylinder, an outer cylinder, a baffle ring, a supporting frame, a drying cylinder support and a spiral piece, the end of the drying cylinder is horizontally fixed to the upper end of the supporting frame through the drying cylinder support, and the outer cylinder is arranged on the outer side of the drying cylinder in a sleeved mode. A channel is formed between the drying cylinder and the outer cylinder; spiral pieces are fixed to the inner wall of the outer cylinder at intervals, a plurality of outer cylinder rotating rings are fixedly arranged on the outer side of the outer cylinder in a sleeving mode, the rotating supporting assemblies are symmetrically fixed to the upper end of the supporting frame, the outer cylinder rotating rings are placed on the rotating supporting assemblies, the outer cylinder is driven to rotate through the rotating supporting assemblies, and baffle rings are arranged between the two ends of the outer cylinder and the drying cylinder. And a discharge port is reserved at the bottom of the baffle ring at the rear end of the outer cylinder. The sludge drying and recycling device can continuously and efficiently dry sludge, is convenient for recycling and transferring after drying, and can improve the drying and recycling efficiency of the sludge.

Description

TECHNICAL FIELD

[0001] The utility model relates to sludge drying technical field especially, relates to a sludge drying recovery equipment. BACKGROUND

[0002] A certain amount of sludge is produced in sewage treatment, and the sludge containing rich organic matter and not containing harmful substances such as heavy metals can be used to produce fertilizer and organic improved soil after removing water in the sludge. In the treatment process, the sludge is generally preliminarily dewatered by using a sludge dewatering device, and then dried by using a drying device, so that the sludge is reduced and stabilized, the environmental pollution is reduced, and the resource recycling is realized. How to realize continuous and efficient drying and recovery of the sludge and improve the treatment efficiency of the sludge is of great significance for the drying and recovery of the sludge.

[0003] There are some sewage drying devices in the prior art, such as the Chinese utility model patent with the application number CN202321475516.2 and the name of sludge drying recovery equipment, but it is mainly used to solve the problem that the sewage in the sludge is difficult to be separated from the sludge by the filter screen at the bottom during the turning process of the turning plate, thereby reducing the dewatering efficiency of the sludge. For example, the invention patent application with the application number CN202310831109.9 and the name of a portable sludge heat pump drying mechanism with waste heat recovery function is used to solve the problems existing in the sludge drying, but it is mainly used to spread the sludge, so that the sludge is uniformly distributed, the drying efficiency is improved, and the sludge is longitudinally distributed, thereby reducing the land occupation of the drying box. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a sludge drying recovery equipment, which can realize continuous and efficient drying of the sludge, and is convenient for recovery and transportation after drying, and can improve the drying and recovery efficiency of the sludge.

[0005] This utility model adopts the following technical solution: a sludge drying and recycling device, including: a rotating support assembly, a drying cylinder, an outer cylinder, a retaining ring, a support frame, a drying cylinder bracket, and spiral blades. The end of the drying cylinder is horizontally fixed to the upper end of the support frame through the drying cylinder bracket. The outer cylinder is sleeved on the outside of the drying cylinder, forming a channel between the drying cylinder and the outer cylinder. Spiral blades are fixed at intervals on the inner wall of the outer cylinder. Several outer cylinder rotating rings are sleeved and fixed on the outer side of the outer cylinder. The rotating support assembly is symmetrically fixed to the upper end of the support frame. The outer cylinder rotating rings are placed on the rotating support assembly, and the rotating support assembly drives the outer cylinder to rotate. Retaining rings are provided between the two ends of the outer cylinder and the drying cylinder. A discharge port is left at the bottom of the retaining ring located at the rear end of the outer cylinder. High-temperature flue gas is introduced into the drying cylinder. Sludge enters from the front end of the outer cylinder. The rotating support assembly drives the outer cylinder to rotate. Under the action of the spiral blades, the sludge moves backward from the outer cylinder. The high-temperature flue gas is used to dry the sludge between the drying cylinder and the outer cylinder.

[0006] Furthermore, there are multiple sets of the rotating support assembly, each set of rotating support assemblies having the same structure, including two support structures and a driving assembly. The two support structures are symmetrically fixed on both sides of the upper end of the support frame, and the driving assembly is used to drive one of the support structures to rotate.

[0007] Furthermore, the support structure includes a rotating drum and rotating drum bases. The two ends of the rotating drum are rotatably mounted on two rotating drum bases. The drive assembly includes a motor, a transmission chain, a drive sprocket, and a driven sprocket. The motor is fixed to the upper end of the support frame. The drive sprocket is fixed to the drive end of the motor. The driven sprocket is fixed to the outer end of the rotating shaft of the rotating drum. The driven sprocket and the drive sprocket are connected by a transmission chain.

[0008] Furthermore, the upper end of the support frame is fixed with a feeding hopper of a feeding conveyor via a feeding conveyor bracket. The feeding hopper of the feeding conveyor is located above the front end of the outer cylinder. The feeding conveyor is inclinedly installed at the discharge port at the bottom end of the feeding hopper of the feeding conveyor. The bottom end of the feeding conveyor passes through the drying cylinder and extends to the upper part of the inner wall of the outer cylinder, which is used to transport the sludge in the feeding hopper of the feeding conveyor to the area between the outer side of the drying cylinder and the inner side of the outer cylinder.

[0009] Furthermore, a feeding conveyor is inclinedly arranged at the rear end of the outer cylinder. The feeding conveyor is fixed to the upper end of the feeding hopper support. A feeding hopper is arranged at the bottom end of the feeding conveyor. The feeding hopper is located below the discharge port at the rear end of the outer cylinder.

[0010] Furthermore, the upper end of the feeding conveyor is located above the storage bin, and the storage bin is fixed to the top of the storage bin support.

[0011] Furthermore, the front end of the drying cylinder is connected to a drying cylinder inlet, the rear end of the drying cylinder is connected to a drying cylinder outlet, and an installation ring is provided on the outer edge of the drying cylinder inlet and the drying cylinder outlet.

[0012] Furthermore, several support feet are symmetrically installed at the bottom of the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model discloses a sludge drying and recycling device. High-temperature flue gas is introduced into the drying cylinder to maintain a certain drying temperature inside the outer cylinder. Sludge is slowly conveyed from the feed hopper of the feeding conveyor into the sludge channel between the drying cylinder and the outer cylinder by the feeding conveyor. The outer cylinder is rotated by a rotating support assembly, and the sludge moves backward from the sludge channel under the action of the spiral blades. This enables continuous and efficient drying of sludge, improving the drying and recycling efficiency of sludge.

[0015] 2. The present invention relates to a sludge drying and recycling equipment. The dried sludge is lifted to a storage silo by a feeding conveyor. When the amount of dried sludge stored in the storage silo reaches a certain amount, a vehicle can be driven to the bottom of the storage silo support, the unloading valve can be opened, and the sludge can be loaded directly, which facilitates the recycling and transportation after drying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the sludge drying and recycling equipment of this utility model;

[0017] Figure 2 This is a schematic diagram of the front part of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the rotary support assembly, outer cylinder and support frame in this utility model;

[0019] Figure 4 This is a top view of the present invention;

[0020] Figure 5 yes Figure 4 A sectional view along line AA.

[0021] In the diagram: Rotary support assembly-3; Drying cylinder-5; Outer cylinder-6; Retaining ring-8; Support frame-11; Support foot-12; Feeding conveyor-21; Feed hopper-22; Feed hopper support-23; Motor-31; Transmission chain-32; Drive sprocket-33; Driven sprocket-34; Rotary cylinder-35; Rotary cylinder seat-36; Discharge conveyor-41; Discharge conveyor support-42; Discharge conveyor feed bin-43; Drying cylinder support-44; Drying cylinder inlet-51; Drying cylinder outlet-52; Outer cylinder rotating ring-61; Discharge port-62; Spiral blades-63; Storage bin-71; Storage bin support-72. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] The purpose of this invention is to address the shortcomings of existing technologies by providing a sludge drying and recycling device.

[0024] Example 1

[0025] This embodiment provides a sludge drying and recycling device, referring to... Figures 1-5As shown, the assembly includes: a rotating support assembly 3, a drying cylinder 5, an outer cylinder 6, a retaining ring 8, a support frame 11, a drying cylinder bracket 44, and spiral blades 63. The front end of the drying cylinder 5 is connected to a drying cylinder inlet 51, and the rear end is connected to a drying cylinder outlet 52. An installation ring is provided along the outer edge of both the drying cylinder inlet 51 and the drying cylinder outlet 52 for connection to an external heating pipe. The end of the drying cylinder 5 is horizontally fixed to the upper end of the support frame 11 via the drying cylinder bracket 44. There can be two drying cylinder brackets 44, fixed to both ends of the drying cylinder 5 respectively for support; alternatively, there can be one drying cylinder bracket 44, fixed to one end of the drying cylinder 5, with the other end supported by the connected heating pipe. Several support feet 12 are symmetrically installed at the bottom of the support frame 11 to maintain its stability. The outer cylinder 6 is fitted around the outside of the drying cylinder 5, forming a sludge channel between the drying cylinder 5 and the outer cylinder 6. Spiral blades 63 are fixed at intervals on the inner wall of the outer cylinder 6. Two outer cylinder rotating rings 61 are fitted and fixed on the outer side of the outer cylinder 6. The rotating support assembly 3 is symmetrically fixed on the upper end of the support frame 11. The outer cylinder rotating rings 61 are placed on the rotating support assembly 3, and the outer cylinder 6 is rotated by the rotating support assembly 3. The two ends of the outer cylinder 6 are provided with retaining rings 8 between them and the drying cylinder 5. The retaining rings 8 are fixed on the inner wall of the outer cylinder 6. A certain gap is left between the retaining rings 8 and the outer cylinder 6 for the outer cylinder 6 to rotate. In order to improve the sealing effect between the retaining rings 8 and the outer cylinder 6 and to better insulate the heat, a plastic curtain can be set around the outer ring of the retaining rings 8. The retaining rings 8 and the outer cylinder 6 are blocked by the plastic curtain. A discharge port 62 is left at the bottom of the retaining rings 8 at the rear end of the outer cylinder 6.

[0026] Reference Figures 1-5 As shown, a feeding hopper 43 of a feeding conveyor is fixed to the upper end of the support frame 11 via a feeding conveyor bracket 42. The feeding hopper 43 is located above the front end of the outer cylinder 6. A feeding conveyor 41 is inclinedly arranged at the discharge port at the bottom of the feeding hopper 43. The bottom end of the feeding conveyor 41 passes through the drying cylinder 5 and extends to the upper part of the inner wall of the outer cylinder 6, used to transport the sludge in the feeding hopper 43 to the area between the outer side of the drying cylinder 5 and the inner side of the outer cylinder 6. In this embodiment, the feeding conveyor 41 uses a screw conveyor, which is a technology known in the prior art.

[0027] High-temperature flue gas is introduced into the drying cylinder 5. Sludge falls from the feed hopper 43 of the feeding conveyor and is slowly conveyed to the front end of the outer cylinder 6 by the feeding conveyor 41, so that it falls into the sludge channel between the outer wall of the drying cylinder 5 and the inner wall of the outer cylinder 6. The rotating support assembly 3 drives the outer cylinder 6 to rotate, and the sludge moves backward from the sludge channel under the drive of the spiral blades 63. The high-temperature flue gas is used to dry the sludge between the drying cylinder 5 and the outer cylinder 6.

[0028] Example 2

[0029] This embodiment provides a sludge drying and recycling device, which is based on the structure in Embodiment 1, and refers to... Figures 1-5 As shown, there are two sets of rotating support assemblies 3. Each set of rotating support assemblies 3 has the same structure, including two support structures and a drive assembly. The two support structures are symmetrically fixed on both sides of the upper end of the support frame 11. The drive assembly is used to drive one of the support structures to rotate. Specifically, the support structure includes a rotating cylinder 35 and a rotating cylinder seat 36. The two ends of the rotating cylinder 35 are rotatably mounted on the two rotating cylinder seats 36. The drive assembly includes a motor 31, a transmission chain 32, a driving sprocket 33, and a driven sprocket 34. The motor 31 is fixed to the upper end of the support frame 11. The driving sprocket 33 is fixed to the driving end of the motor 31. The driven sprocket 34 is fixed to the outer end of the rotating shaft of the rotating cylinder 35. The driven sprocket 34 is coaxial with the rotating shaft of the rotating cylinder 35. The driven sprocket 34 and the driving sprocket 33 are connected by the transmission chain 32.

[0030] The rotating support assembly 3 uses its drive component to drive a support structure to rotate. Specifically, the rotation of the motor 31 drives the drive sprocket 33 to rotate, which in turn drives the rotating drum 35 to rotate via a transmission chain. The friction between the rotating drum 35 and the outer drum ring 61 drives the outer drum 6 to rotate. In this embodiment, the motor 31 uses a geared motor from the prior art, with a minimum output speed of no more than 20 r / min and a maximum output speed of no less than 100 r / min, and a rated voltage of DC 220V or AC 380V.

[0031] Example 3

[0032] This embodiment provides a sludge drying and recycling device, referring to... Figures 1-5 As shown, a feeding conveyor 21 is inclinedly installed at the rear end of the outer cylinder 6. The feeding conveyor 21 is fixed to the upper end of the feed hopper support 23, and a feed hopper 22 is installed at the bottom end of the feeding conveyor 21. The feed hopper 22 is located below the discharge port 62 at the rear end of the outer cylinder 6. The feeding conveyor 21 also uses a conventional spiral feeding conveyor, and its conveying capacity is greater than or equal to that of the unloading conveyor 41. The upper end of the feeding conveyor 21 is located above the storage bin 71, and the storage bin 71 is fixed to the top of the storage bin support 72. The dried sludge is lifted into the storage bin 71 by the feeding conveyor 21 for storage. A discharge valve is installed at the bottom end of the storage bin 71. When the dried sludge stored in the storage bin 71 reaches a certain amount, a vehicle can be driven to the bottom of the storage bin support 72, the discharge valve can be opened, and the sludge can be loaded directly for convenient transportation.

[0033] This utility model discloses a sludge drying and recycling device. Before use, the drying cylinder inlet 51 and drying cylinder outlet 52 are connected to an external heating pipeline. It can directly utilize waste heat from factories, power plants, etc., or generate its own heat. The hot air enters the drying cylinder 5 through the drying cylinder inlet 51 and exits through the drying cylinder outlet 52, ensuring the outer cylinder 6 reaches a certain temperature, preferably not lower than 60℃. The sludge is then transported to the feeding hopper 43 of the feeding conveyor 41, and slowly conveyed to the sludge channel between the outer wall of the drying cylinder 5 and the inner wall of the outer cylinder 6. The outer cylinder 6 is driven to rotate by the rotating support assembly 3, and the sludge moves backward from the sludge channel under the action of the spiral blades 63. High-temperature flue gas is used to dry the sludge between the drying cylinder 5 and the outer cylinder 6, achieving continuous and efficient drying of the sludge, improving the drying and recycling efficiency. The dried sludge is then lifted to the storage hopper 71 by the feeding conveyor 21 for storage, facilitating recycling and transfer.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sludge drying and recycling apparatus, characterized by, The utility model provides a sludge drying device, which comprises a rotary support assembly (3), a drying cylinder (5), an outer cylinder (6), a baffle ring (8), a support frame (11), a drying cylinder support (44) and a spiral blade (63), the end of the drying cylinder (5) is fixed horizontally on the upper end of the support frame (11) through the drying cylinder support (44), the outer cylinder (6) is sleeved on the outer side of the drying cylinder (5), and a channel is formed between the drying cylinder (5) and the outer cylinder (6); a plurality of spiral blades (63) are fixed on the inner wall of the outer cylinder (6) at intervals, a plurality of outer cylinder rotating rings (61) are fixed on the outer side of the outer cylinder (6), the rotary support assembly (3) is fixed symmetrically on the upper end of the support frame (11), the outer cylinder rotating ring (61) is placed on the rotary support assembly (3), the outer cylinder (6) is rotated through the rotary support assembly (3), the baffle ring (8) is arranged between the two ends of the outer cylinder (6) and the drying cylinder (5), and a discharge port (62) is left at the bottom of the baffle ring (8) located at the rear end of the outer cylinder (6); high-temperature flue gas is introduced into the drying cylinder (5), sludge enters from the front end of the outer cylinder (6), the outer cylinder (6) is rotated through the rotary support assembly (3), the sludge moves backward from the outer cylinder (6) under the drive of the spiral blade (63), and the sludge between the drying cylinder (5) and the outer cylinder (6) is dried by using the high-temperature flue gas. The rotary support assembly (3) has a plurality of groups, each group of rotary support assemblies (3) has the same structure, and each group of rotary support assemblies (3) comprises two support structures and a driving assembly; the two support structures are fixed symmetrically on the two sides of the upper end of the support frame (11); and the driving assembly is used for driving one of the support structures to rotate.

2. The sludge drying and recovering apparatus according to claim 1, characterized by: The support structure comprises a rotating cylinder (35) and a rotating cylinder seat (36), the two ends of the rotating cylinder (35) are rotatably installed on the two rotating cylinder seats (36), and the driving assembly comprises an electric motor (31), a transmission chain (32), a driving sprocket (33) and a driven sprocket (34); the electric motor (31) is fixed on the upper end of the support frame (11); the driving sprocket (33) is fixed on the driving end of the electric motor (31); the driven sprocket (34) is fixed on the outer end of the rotating shaft of the rotating cylinder (35); and the driven sprocket (34) and the driving sprocket (33) are connected through the transmission chain (32).

3. The sludge drying and recovering apparatus according to claim 2, characterized by: The upper end of the support frame (11) is fixed with a discharging conveyor feeding bin (43) through a discharging conveyor support (42), the discharging conveyor feeding bin (43) is located above the front end of the outer cylinder (6), and an inclined discharging conveyor (41) is arranged at the discharge port in the bottom end of the discharging conveyor feeding bin (43); the bottom end of the discharging conveyor (41) extends to above the inner wall of the outer cylinder (6) after passing through the drying cylinder (5), and is used for conveying the sludge in the discharging conveyor feeding bin (43) to the space between the outer side of the drying cylinder (5) and the inner side of the outer cylinder (6).

4. The sludge drying and recovering apparatus according to claim 3, characterized by: ​ 5. The sludge drying and recovering apparatus according to claim 4, characterized by: The rear end of the outer cylinder (6) is obliquely provided with a feeding conveyor (21), the feeding conveyor (21) is fixed on the upper end of a feeding hopper support (23), the bottom end of the feeding conveyor (21) is provided with a feeding hopper (22), and the feeding hopper (22) is located below a discharge port (62) at the rear end of the outer cylinder (6).

6. The sludge drying and recovering apparatus according to claim 5, characterized by: The upper end of the feeding conveyor (21) is located above a storage bin (71), and the storage bin (71) is fixed on the top end of a storage bin support (72).

7. The sludge drying and recovering apparatus according to claim 6, characterized by: The front end of the drying cylinder (5) is connected with a drying cylinder inlet (51), the rear end of the drying cylinder (5) is connected with a drying cylinder outlet (52), and the outer end edges of the drying cylinder inlet (51) and the drying cylinder outlet (52) are provided with a ring of mounting rings.

8. The sludge drying and recovering apparatus according to any one of claims 1 to 7, characterized by: The bottom of the support frame (11) is symmetrically provided with a plurality of support foot supports (12).

Images