Sludge treatment device for urban sewage treatment plant

Abstract

The utility model discloses a municipal sewage treatment plant sludge treatment device which comprises a feeding device, a rotary heating device, a lifting device and a driving device, the rotary heating device is arranged at the bottom of the feeding device, the lifting device is arranged at the bottom of the rotary heating device, the driving device is arranged on one side of the lifting device, and the driving device is arranged on the other side of the lifting device. Sludge enters an inner cavity of the rotary heating device through the feeding device to be dried and crushed, the sludge in the inner cavity of the rotary heating device can rotate, the rotary heating device can be driven by the driving device to rotate in the opposite direction, and the sludge is output outwards through the lifting device. The sludge treatment device for the urban sewage treatment plant has remarkable beneficial effects in the aspects of sludge treatment efficiency, quality, feeding and discharging control, stability and safety of equipment operation and the like, can effectively solve many problems in the existing sludge treatment technology, and has relatively high practical value and popularization prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge treatment device for urban sewage treatment plant. BACKGROUND

[0002] With the acceleration of urbanization, the number and scale of urban sewage treatment plants are increasing. In the process of sewage treatment, a large amount of sludge will be produced. These sludge contains a large amount of organic matter, microorganisms, heavy metals and pathogens, etc. If not properly treated, it will cause serious secondary pollution to the environment, such as soil and water pollution, disease transmission, etc. At the same time, the sludge also contains certain resources, such as organic matter which can be used for energy recovery or land use, etc. Therefore, effective treatment of sludge has important environmental and resource significance.

[0003] The shortcomings of existing sludge treatment technology are:

[0004] (1) Limitations of traditional drying equipment;

[0005] 1. Uneven drying:

[0006] Many existing sludge drying equipment has a relatively simple structure design, often simply heating the sludge through a heating source. For example, some simple box-type drying equipment, the heating source is usually located on one side or the bottom of the equipment, which leads to uneven heating of the sludge during drying. The part of the sludge close to the heating source may dry quickly, while the part far from the heating source may still be in a wet state. This uneven drying effect will affect the subsequent treatment and utilization of the sludge.

[0007] 2. Lack of stirring function:

[0008] Most traditional drying equipment does not have an effective stirring mechanism. During the drying process, the sludge has a certain viscosity, and if it is not stirred, it is easy to clump. The internal moisture of the clumped sludge is difficult to evaporate, which not only prolongs the drying time, but also may lead to incomplete drying, affecting the overall efficiency of sludge treatment.

[0009] (2) Separation of crushing equipment and drying equipment;

[0010] 1. Complicated processing flow:

[0011] In the existing sludge treatment process, the crushing equipment and the drying equipment are usually set separately. The sludge first needs to be crushed in the crushing equipment, and then transferred to the drying equipment for drying. This separate processing method requires additional material transfer equipment and operation steps, increasing the cost of equipment and labor, and also easily causing sludge spillage and secondary pollution during material transfer.

[0012] 2. Overall efficiency is low:

[0013] Since the crushing and drying processes are carried out separately, the connection between the two processes is not close enough. The crushed sludge may re-agglomerate or be affected by the external environment during the transfer to the drying equipment, resulting in the need to adjust the parameters or prolong the time of the drying process, thereby reducing the efficiency of the entire sludge treatment system.

[0014] In summary, the existing sludge treatment technology of municipal sewage treatment plants has many shortcomings in terms of drying uniformity, stirring function, equipment integration, and feed and discharge control, etc. Therefore, a new type of sludge treatment device is needed to effectively solve these problems. Content of the utility model

[0015] The utility model aims at providing a sludge treatment device for municipal sewage treatment plants to solve the problems raised in the background art.

[0016] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sludge treatment device for municipal sewage treatment plants, comprising a feeding device, a rotary heating device, a lifting device, and a driving device, the bottom of the feeding device is provided with the rotary heating device, the bottom of the rotary heating device is provided with the lifting device, one side of the lifting device is provided with the driving device, the sludge enters the inner cavity of the rotary heating device for drying and crushing through the feeding device, the sludge in the inner cavity of the rotary heating device can rotate, and under the driving of the driving device, the rotary heating device can rotate in the opposite direction, and the sludge is outputted outward through the lifting device.

[0017] Preferably, the feeding device comprises a semicircular plate, a torsion spring shaft, and a first shell, the inner wall diameter line of the first shell is provided with a rotatable torsion spring shaft, both sides of the torsion spring shaft are provided with rotatable semicircular plates, and the side surface of the semicircular plate is in contact with the inner wall of the first shell.

[0018] Preferably, the heating device comprises a first arc-shaped plate, a second arc-shaped plate, a cylindrical shaft, a first motor, a heating rod, a first fixed block, a pressure relief valve, and a second shell, one end of the first fixed block is fixedly arranged at the top end of the inner wall of the second shell, the other end of the first fixed block is fixedly arranged with the first motor, the output end of the first motor is fixedly arranged with the cylindrical shaft, the outer wall of the cylindrical shaft is staggered on both sides and provided with the first arc-shaped plate, two groups of second arc-shaped plates are fixedly arranged on both sides of the inner wall of the second shell, and the second arc-shaped plate is staggered and communicated with the first arc-shaped plate when rotating, the inner cavity of the second arc-shaped plate is provided with a plurality of heating rods, the outer wall of the second shell is provided with the pressure relief valve, and the first motor drives the first arc-shaped plate to rotate to crush and dry the sludge.

[0019] Preferably, the lifting device comprises a conical plate, an electric push rod, a discharge port and a third shell, the bottom end of the inner cavity of the third shell is fixedly provided with the electric push rod, the top end of the electric push rod is fixedly provided with the conical plate capable of moving up and down, the outer wall of the conical plate is in contact with the inner wall of the third shell, and the outer wall of the third shell is provided with the through discharge port on one side.

[0020] Preferably, the driving device comprises a second motor, a second fixed block, a notch, a second gear, a first gear, a fourth shell, a fixed plate and a circular shaft, one side of the top end of the fixed plate is provided with the fourth shell, one side of the inner wall of the fourth shell is fixedly provided with one end of the second fixed block, the other end of the second fixed block is fixedly provided with the second motor, the bottom of the fourth shell is provided with the notch, one end of the fixed plate is provided with the first gear capable of rotating, the first gear is fixedly provided with a rotating shaft, and the output end of the second motor is connected with the central rotating shaft of the first gear, the other side of the fixed plate is provided with the second gear capable of rotating, the second gear is fixedly sleeved on the bottom surface of the outer wall of the third shell, the second gear is engaged with the first gear, the top end of the fixed plate and the central position of the second gear are provided with the circular shaft capable of rotating, and the circular shaft is fixedly connected with the bottom of the third shell, and the second motor drives the first gear to drive the second gear to rotate, thereby driving the third shell to rotate synchronously.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1. The sludge treatment device integrates drying and crushing functions in the rotary heating device. In the rotary heating device, the first motor drives the first arc-shaped plate on the cylindrical shaft to rotate, and the second arc-shaped plate is fixed to the inner wall of the second shell and has a heating rod inside. The first arc-shaped plate and the second arc-shaped plate are staggered and communicate with each other and are both semicircular. This structure design enables the sludge to be effectively crushed while being heated and dried. Compared with the traditional method of separately arranging the crushing and drying equipment, the energy loss and time waste in the material transfer process are reduced, and the overall efficiency of sludge treatment is greatly improved.

[0023] 2. Due to the large contact area of the first arc-shaped plate and the second arc-shaped plate with the sludge, and under the combined action of the first motor driving the first arc-shaped plate to rotate and the second motor driving the rotary heating device to rotate in the opposite direction through the driving device, the sludge in the inner cavity of the rotary heating device can be fully stirred. This ensures that the sludge is evenly heated during drying, avoids the problem of partial sludge being over-dried and partial sludge still being moist due to uneven heating in traditional drying equipment, improves the quality of sludge drying, and makes the dried sludge more suitable for subsequent treatment or utilization requirements.

[0024] 3. The design of the semi-circular plate, torsion spring shaft and first housing in the feeding device realizes effective control of the feeding; the first housing is conical and the diameter increases from bottom to top, when the sludge is poured, the semi-circular plate rotates around the torsion spring shaft under the gravity of the sludge, realizing the feeding of the sludge. After the feeding is completed, the semi-circular plate rebounds to close the inside of the first housing; this structure can automatically adjust the feeding amount according to the gravity of the sludge, avoiding the problems of equipment blockage or incomplete treatment caused by excessive feeding, and low equipment utilization caused by insufficient feeding, realizing accurate feeding.

[0025] 4. The design of the conical plate, electric push rod, discharge port and third housing in the lifting device guarantees the smoothness of the discharging. After the drying and crushing of the sludge are completed, the electric push rod drives the conical plate to move downward, and since the top surface of the conical plate is inclined, when the conical plate moves to the discharge port position, the sludge can smoothly reach the discharge port and be output outward along the inclined surface; this design avoids the problem of discharge port blockage, without the need for additional manual intervention or complex auxiliary discharging equipment, reducing the operation cost and complexity.

[0026] 5. The driving device can stably drive the rotation of the third housing of the lifting device and the rotary heating device through the cooperation of the second motor, first gear, second gear and other components; this stable driving and rotating mechanism ensures that the stirring, drying and crushing operations of the sludge during the treatment process can be continuously and effectively carried out, improving the stability of the equipment operation.

[0027] In summary, the sludge treatment device of the municipal sewage treatment plant has significant beneficial effects in the efficiency, quality, feeding and discharging control and stability and safety of the equipment operation of sludge treatment, can effectively solve many problems existing in the existing sludge treatment technology, and has high practical value and popularization prospect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the rotary heating device of the utility model;

[0030] Figure 3 It is a structural schematic diagram of the first arc-shaped plate and the second arc-shaped plate of the utility model;

[0031] Figure 4 It is a structural schematic diagram of the heating rod of the utility model;

[0032] Figure 5 It is a structural schematic diagram of the semi-circular plate of the utility model;

[0033] Figure 6 It is a structural schematic diagram of the lifting device of the utility model;

[0034] Figure 7 It is the drive device structure schematic view of the utility model.

[0035] Figure 8 It is the second gear structure schematic view of the utility model.

[0036] In the drawing: 1, feeding device, 2, rotating heating device, 3, lifting device, 4, drive device, 11, semicircular plate, 12, torsion spring shaft, 13, first housing, 21, first arc plate, 22, second arc plate, 23, cylindrical shaft, 24, first motor, 25, heating rod, 26, first fixed block, 27, pressure relief valve, 28, second housing, 31, conical plate, 32, electric push rod, 33, discharge port, 34, third housing, 41, second motor, 42, second fixed block, 43, notch, 44, second gear, 45, first gear, 46, fourth housing, 47, fixed plate, 48, round shaft. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0038] Please refer to Figures 1-8 The utility model provides a technical scheme: a kind of sludge treatment device of urban sewage treatment plant, including feeding device 1, rotating heating device 2, lifting device 3 and drive device 4, the bottom of feeding device 1 is provided with rotating heating device 2, the bottom of rotating heating device 2 is provided with lifting device 3, one side of lifting device 3 is provided with drive device 4, sludge is entered into the inner cavity of rotating heating device 2 to dry and break by feeding device 1, the sludge in the inner cavity of rotating heating device 2 can rotate, and under the driving of drive device 4 point, make rotating heating device 2 can rotate in opposite direction, and sludge is outputted outward by lifting device 3.

[0039] As preferred scheme, further, feeding device 1 includes semicircular plate 11, torsion spring shaft 12 and first housing 13, the inner wall diameter line of first housing 13 is provided with rotatable torsion spring shaft 12, the two sides of torsion spring shaft 12 are provided with rotatable semicircular plate 11, and the side of semicircular plate 11 is in contact with the inner wall of first housing 13, first housing 13 is conical and diameter increases successively from bottom to top, when semicircular plate 11 is subjected to the gravity of sludge, can rotate around torsion spring shaft 12, and sludge is discharged, after discharging, semicircular plate 11 rebounds, and the inside of first housing 13 is closed.

[0040] As a preferred scheme, further, the heating device 2 comprises a first arc-shaped plate 21, a second arc-shaped plate 22, a cylindrical shaft 23, a first motor 24, a heating rod 25, a first fixed block 26, a pressure relief valve 27 and a second shell 28, one end of the first fixed block 26 is fixedly arranged at the top of the inner wall of the second shell 28, the other end of the first fixed block 26 is fixedly arranged with the first motor 24, the output end of the first motor 24 is fixedly arranged with the cylindrical shaft 23, the outer wall of the cylindrical shaft 23 is arranged with the first arc-shaped plate 21 staggered on both sides, two groups of the second arc-shaped plate 22 are fixedly arranged on both sides of the inner wall of the second shell 28, and the second arc-shaped plate 22 is staggered with the first arc-shaped plate 21 when rotating, the inner cavity of the second arc-shaped plate 22 is arranged with a plurality of heating rods 25, the first arc-shaped plate 21 and the second arc-shaped plate 22 are semicircular, the contact area with the sludge is larger, the sludge driving area and the sludge heating area are larger, the outer wall of the second shell 28 is arranged with the pressure relief valve 27, when the internal pressure of the second shell 28 is too large, the internal pressure relief is carried out through the pressure relief valve 27, and the first motor 24 drives the first arc-shaped plate 21 to rotate to crush and dry the sludge.

[0041] As a preferred scheme, further, the lifting device 3 comprises a conical plate 31, an electric push rod 32, a discharge port 33 and a third shell 34, the electric push rod 32 is fixedly arranged at the bottom of the inner cavity of the third shell 34, the top end of the electric push rod 32 is fixedly arranged with the conical plate 31 which can move up and down, the outer wall of the conical plate 31 is in contact with the inner wall of the third shell 34, the outer wall of the third shell 34 is arranged with the through discharge port 33 on one side, after the sludge is crushed and dried, when the sludge needs to be discharged, the electric push rod 32 is controlled to drive the conical plate 31 to move downward, when the conical plate 31 moves to the position of the discharge port 33, the material can reach the position of the discharge port 33 through the inclined surface of the conical plate 31 to be outputted outward.

[0042] As a preferred further, the driving device 4 includes a second motor 41, a second fixed block 42, a notch 43, a second gear 44, a first gear 45, a fourth shell 46, a fixed plate 47 and a circular shaft 48, the top end side of the fixed plate 47 is provided with the fourth shell 46, one end of the second fixed block 42 is fixedly arranged on the inner wall side of the fourth shell 46, the other end of the second fixed block 42 is fixedly arranged with the second motor 41, the bottom of the fourth shell 46 is provided with the notch 43, one end of the fixed plate 47 is provided with the first gear 45 which can rotate, the first gear 45 is fixedly arranged with a rotating shaft, and the output end of the second motor 41 is connected with the central rotating shaft of the first gear 45, the other side of the fixed plate 47 is provided with the second gear 44 which can rotate, the second gear 44 is fixedly sleeved on the bottom surface of the outer wall of the third shell 34, and the second gear 44 is engaged with the first gear 45, the top end of the fixed plate 47 and located at the central position of the second gear 44 is provided with the circular shaft 48 which can rotate, and the circular shaft 48 is fixedly connected with the bottom of the third shell 34, the second motor 41 drives the first gear 45 to drive the second gear 44 to rotate and drive the third shell 34 to rotate synchronously.

[0043] The detailed connection means is a known technology in the art, and the working principle and process are mainly introduced below. The specific work is as follows: the sludge is poured into 13, and the inner cavity of 2 is opened by the gravity of the sludge itself. When the sludge in 13 is completely poured into the inner cavity of 2, 13 is closed by the rebound of 11, so that 2 is closed. The inner cavity of 2 is fixedly provided with 22 and 21 which can rotate clockwise. 22 and 21 can be staggered and communicated. 21 is rotated by 24, so that the large sludge is crushed. 22 is provided with 25 to heat and dry the sludge. Since 21 and 22 are both arc-shaped, the contact area of 21 and 22 with the sludge is larger, so that the crushing and heating effect is better. At the same time, 41 drives 45 to rotate counterclockwise, and 44 drives 34 to rotate counterclockwise. Since 21 in 28 rotates in the opposite direction of 44, the sludge in 2 is stirred and heated more uniformly. When the drying and crushing of the sludge in 2 are completed, 31 is driven downward by 32. Since the top surface of 31 is inclined, the sludge is output outward through 33.

[0044] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sludge treatment device for a municipal sewage treatment plant, characterized by: The invention comprises a feeding device (1), a rotary heating device (2), a lifting device (3) and a driving device (4), wherein the bottom of the feeding device (1) is provided with a rotary heating device (2), the bottom of the rotary heating device (2) is provided with a lifting device (3), and one side of the lifting device (3) is provided with a driving device (4), sludge enters the inner cavity of the rotary heating device (2) through the feeding device (1) to be dried and crushed, the sludge in the inner cavity of the rotary heating device (2) can rotate, and the rotary heating device (2) is driven by the driving device (4) to rotate in the opposite direction, and the sludge is output to the outside through the lifting device (3).

2. The sludge treatment device for a municipal sewage treatment plant according to claim 1, characterized in that: The feeding device (1) comprises a semicircular plate (11), a torsion spring shaft (12) and a first shell (13); a rotatable torsion spring shaft (12) is provided on the inner diameter line of the first shell (13); rotatable semicircular plates (11) are provided on both sides of the torsion spring shaft (12), and the side surfaces of the semicircular plates (11) are in contact with the inner wall of the first shell (13).

3. The sludge treatment device of a municipal sewage treatment plant according to claim 2, characterized in that: The (2) comprises a first curved plate (21), a second curved plate (22), a cylindrical shaft (23), a first motor (24), a heating rod (25), a first fixed block (26), a pressure relief valve (27) and a second shell (28), wherein one end of the first fixed block (26) is fixedly provided at the top end of the inner wall of the second shell (28), the first motor (24) is fixedly provided at the other end of the first fixed block (26), and the cylindrical shaft (23) is fixedly provided at the output end of the first motor (24). First curved plates (21) are staggeredly arranged on both sides of the outer wall of the cylindrical shaft (23), two groups of second curved plates (22) are fixedly arranged on both sides of the inner wall of the second shell (28), and the second curved plates (22) are staggeredly communicated with the first curved plates (21) when rotating, a plurality of heating rods (25) are arranged in the inner cavity of the second curved plates (22), and a pressure relief valve (27) is arranged on the outer wall of the second shell (28), and the first motor (24) drives the first curved plates (21) to rotate to crush and dry the sludge.

4. A sludge treatment device for a municipal sewage treatment plant according to claim 3, characterized in that: The lifting device (3) includes a conical plate (31), an electric push rod (32), a discharge port (33) and a third shell (34). The electric push rod (32) is fixedly provided at the bottom end of the inner cavity of the third shell (34). The top end of the electric push rod (32) is fixedly provided with a conical plate (31) that can move up and down. The outer wall of the conical plate (31) is in contact with the inner wall of the third shell (34). A through discharge port (33) is provided on one side of the outer wall of the third shell (34). When the conical plate (31) moves to the position of the discharge port (33), the material can be discharged outward through the inclined surface of the conical plate (31).

5. The sludge treatment device for a municipal sewage treatment plant according to claim 4, characterized in that: The driving device (4) includes a second motor (41), a second fixed block (42), a notch (43), a second gear (44), a first gear (45), a fourth housing (46), a fixed plate (47) and a circular shaft (48). The fourth housing (46) is fixedly provided on one side of the top of the fixed plate (47). One end of the second fixed block (42) is fixedly provided on one side of the inner wall of the fourth housing (46). The second motor (41) is fixedly provided on the other end of the second fixed block (42). The bottom of the fourth housing (46) is provided with a notch (43). A rotatable first gear (45) is provided on one end of the fixed plate (47). The first gear (45) A rotating shaft is fixedly provided, and the output end of the second motor (41) is connected to the central rotating shaft of the first gear (45); a rotatable second gear (44) is provided on the other side of the fixed plate (47), and the second gear (44) is fixedly sleeved on the bottom surface of the outer wall of the third shell (34), and the second gear (44) is meshed with the first gear (45); a rotatable circular shaft (48) is provided at the top of the fixed plate (47) and located at the center of the second gear (44), and the circular shaft (48) is fixedly connected to the bottom of the third shell (34); the second motor (41) causes the first gear (45) to drive the second gear (44) to rotate, thereby driving the third shell (34) to rotate synchronously.

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