A sludge treatment and dewatering apparatus

Abstract

The present application provides a kind of sludge treatment of sludge-water separation equipment, belong to sludge-water treatment technical field, the sludge treatment of sludge-water separation equipment includes machine body and is set on the crushing unit of machine body, crushing unit is used to carry out crushing treatment to sludge, the inside of machine body is provided with transmission unit, transmission unit can drive sludge move in the inside of machine body, the inside of machine body is also provided with heating unit;By the special arrangement of second roller group and third roller group, the upper surface of transmission belt forms inner groove and inclined plane.Sludge will naturally fall into groove due to gravity during transmission, and return to horizontal section under the guidance of inclined plane, thereby completing multiple automatic turning over.Compared with the "outer dry and inner wet" problem caused by sludge static conveying in the prior art, the present application enables the inner and outer layers of sludge to be uniformly heated, effectively avoiding the phenomenon of local over-drying or insufficient drying, and greatly improving the consistency of dewatering effect.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, specifically relating to a sludge-water separation device for sludge treatment. Background Technology

[0002] Sludge refers to a mixture containing water, solid matter, and colloidal substances separated during wastewater treatment or industrial production processes through sedimentation, filtration, centrifugation, and other methods. Sludge typically contains large amounts of organic matter, inorganic matter, microorganisms, heavy metals, etc. Generally, sludge is compressed and dewatered using equipment such as compressors and dewatering machines to reduce its water content and turn it into a solid state. After drying, sludge can be used in many ways. The comprehensive utilization of sludge can reduce environmental pollution, reduce energy consumption, and lower production costs, which is of great significance in the context of sustainable development.

[0003] Chinese Patent CN210150935U discloses a sludge treatment machine, comprising a feeding device, a crushing device, a sludge control device, a conveying device, and a discharge end arranged sequentially. The conveying device includes a first conveying section and a second conveying section, which are arranged parallel to each other in the vertical direction. Radiation sources are provided on both sides of the first and second conveying sections. The outlet of the sludge control device is located at the beginning of the first conveying section. The filter cake is conveyed in an "S" shape on the first and second conveying sections, and a discharge port is provided at the end of the second conveying section. The sludge control device includes a filter cake flow pipeline arranged at a 30° angle to the first conveying section. The filter cake flow pipeline has multiple filter cake flow sections arranged sequentially, and a spiral tube mixer is provided between every two filter cake flow sections. The beneficial effect is that by using the sludge control device to fully mix and homogenize the filter cake before discharge, and then conveying the homogenized filter cake on the first and second conveying sections, it is beneficial to fully dehumidify and dry the sludge.

[0004] In the above technical solution, the sludge moves inside the equipment through a conveying device and is dewatered during the movement. However, the sludge usually does not turn over during the movement inside the equipment, making the sludge near the outside easier to dry, while the sludge near the inside does not get enough dry, resulting in uneven drying and affecting the drying effect. Summary of the Invention

[0005] The purpose of this invention is to provide a sludge-water separation device for sludge treatment, which aims to solve the problem in the prior art where sludge is not turned over during drying, resulting in uneven sludge drying.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sludge-water separation device for sludge treatment, comprising: a body and a crushing unit disposed on the body, the crushing unit being used to crush the sludge; a transmission unit being disposed inside the body, the transmission unit being able to drive the sludge to move inside the body; a heating unit being disposed inside the body, for heating the sludge on the transmission unit; the transmission unit comprising: a transmission belt, a first roller group, a second roller group, and a third roller group; the transmission belt being disposed inside the body, for conveying the sludge; the first roller group consisting of four rollers, for tensioning the transmission belt into a rectangle inside the body, enabling the sludge to be conveyed from one end of the body to the other end; the second roller group and the third roller group enabling the upper surface of the transmission belt to form an inner groove, allowing the sludge to fall into the groove during conveying.

[0007] Its effect is to achieve automatic turning of sludge during the transmission process, effectively avoiding the problem of uneven sludge drying in traditional equipment, and significantly improving drying uniformity and dewatering efficiency.

[0008] A further technical solution of the present invention is that the second roller group is composed of two upper rollers, the conveyor belt overlaps above the upper rollers to form a fulcrum at the opening of the groove of the conveyor belt, and there is a gap between the two upper rollers, which forms the opening of the groove.

[0009] Its effect is that it allows the sludge to fall smoothly into the groove when it moves to the groove, enhancing the controllability and smoothness of the sludge turning.

[0010] A further technical solution of the present invention is that the third roller group consists of two lower rollers, the lower rollers are located below the upper rollers, the conveyor belt overlaps on the lower rollers, forming a bottom wall at the groove of the conveyor belt, and is offset towards the feed port, so that the groove forms an inclined surface.

[0011] Its effect is that by using the inclined plane to guide the sludge to move obliquely upward, the number of times the sludge is turned and the movement path are increased, thereby improving the uniformity of the drying process.

[0012] A further technical solution of the present invention is that an inclined filter plate is installed in the groove, the bottom of the filter plate is spaced apart from the third roller group, allowing sludge to pass through the space, the top of the filter plate extends between the two upper rollers, and there is a distance between the filter plate and the inclined surface, allowing sludge to pass through the space between the filter plate and the inclined surface.

[0013] Its effect is to achieve the screening function of sludge during the turning process, separate fine particles in advance, and optimize the drying time of sludge of different particle sizes.

[0014] A further technical solution of the present invention is that the second roller group and the third roller group are provided in multiple sets, so that the conveyor belt forms multiple grooves.

[0015] Its effect is that, through the multi-level groove design, the sludge is turned over and screened multiple times, which further improves the uniformity of sludge treatment and the dewatering effect.

[0016] A further technical solution of the present invention is that filter plates are provided in each of the plurality of grooves, the filter plates are connected by a horizontal plate, the machine body is provided with an installation groove, the horizontal plate is installed in the installation groove, and a vibration motor connected to the horizontal plate is installed on the installation groove.

[0017] A further technical solution of the present invention is that the filter holes in the plurality of filter plates are all different, and the filter holes gradually increase in size in the direction of sludge conveying.

[0018] Its effect is that during the sludge screening process, sludge with larger particle size can obtain a longer drying path, while sludge with smaller particle size is discharged earlier. This allows for the control of drying time based on particle size classification, significantly improving the accuracy of drying and the overall processing quality.

[0019] A further technical solution of the present invention is that the third roller group is a fixed column.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the special arrangement of the second and third roller sets, an inner groove and an inclined surface are formed on the upper surface of the conveyor belt. During the conveying process, the sludge naturally falls into the groove due to gravity and returns to the horizontal section under the guidance of the inclined surface, thus completing multiple automatic turnings. Compared with the "dry outside and wet inside" problem caused by static sludge conveying in the prior art, this solution allows the inner and outer layers of the sludge to be heated evenly, effectively avoiding local over-drying or under-drying, and greatly improving the consistency of dewatering effect.

[0021] 2. By using filter plates with progressively larger pores within the grooves, coupled with a vibrating motor drive, the sludge is progressively screened according to particle size during transport. Smaller sludge particles, due to their relatively lower moisture content and easier drying, fall off the filter plates earlier and are quickly discharged, shortening their heating time; while larger sludge particles move along the filter plates to the bottom of the grooves, obtaining a longer drying path. This design, which automatically adjusts the drying time based on particle size, avoids over-drying of fine sludge, saving energy, while ensuring that larger sludge particles are thoroughly dried.

[0022] 3. In embodiments where the third roller group uses fixed columns, relative friction occurs between the columns and the conveyor belt. The columns, originally intended only for support, unexpectedly act as scrapers, removing damp mud adhering to the conveyor belt. This design solves the problem of mud accumulation and slippage on the conveyor belt due to long-term use without requiring additional cleaning devices, ensuring the long-term stable operation of the equipment—an unexpected benefit in conventional designs. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a specific embodiment of the present invention; Figure 2 This is a cross-sectional view of a specific embodiment of the present invention; Figure 3 This is a schematic diagram of the transmission unit in a specific embodiment of the present invention; Figure 4 This is a schematic diagram of the groove structure in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the sieving unit in a specific embodiment of the present invention.

[0024] In the diagram: 1. Machine body; 2. Crushing unit; 3. Transmission unit; 4. Screening unit; 11. Feed inlet; 12. Discharge inlet; 13. Discharge outlet; 31. Conveyor belt; 32. First roller group; 33. Second roller group; 34. Third roller group; 35. Groove; 36. Inclined surface; 41. Filter plate; 42. Horizontal plate; 43. Mounting groove; 44. Vibration motor. Detailed Implementation

[0025] 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, and 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.

[0026] Please see Figures 1-5 The present invention provides the following technical solution: a sludge-water separation device for sludge treatment, comprising a body 1, a crushing unit 2, a conveying unit 3, a screening unit 4, and a heating unit.

[0027] The sludge falls into the machine body 1 through the crushing unit 2 and onto the conveying unit 3. The conveying unit 3 moves the sludge, and the heating unit dewaters the sludge during the movement. The screening unit 4 is installed inside the machine body 1 and can be used to separate large pieces of sludge from small pieces of sludge to increase the drying time of large pieces of sludge.

[0028] Please participate Figure 1 A feed inlet 11 is provided on the top of the machine body 1. The feed inlet 11 is located on the crushing unit 2, and the material can enter the interior of the machine body 1 through the crushing unit 2. A discharge inlet 12 is provided on the bottom of the machine body 1. The sludge after dewatering can be discharged through the discharge inlet 12. A discharge outlet 13 for water vapor discharge is also provided on the top of the machine body 1. The water vapor generated by sludge drying is discharged through the discharge outlet 13 to improve the drying effect of the sludge. The discharge outlet 13 can also be connected to an external water vapor treatment device (not shown in the figure) to facilitate the collection and treatment of water vapor.

[0029] Please see Figure 2 The crushing unit 2 is located above the machine body 1 and below the feed port 11, so that the sludge enters the interior of the machine body 1 through the feed port 11. The crushing unit 2 can be used to crush large pieces of sludge. The crushed sludge falls onto the conveying unit 3 by gravity and is transported by the conveying unit 3. The crushing unit 2 is existing technology, and its specific structure will not be described in detail.

[0030] The heating unit is used to heat the sludge inside the machine body 1. The heating unit can be a hot air device, a baking lamp plate, or a heating plate. The specific setting can be selected according to the production situation. The heating unit is existing technology, and the specific structure will not be described in detail.

[0031] Please see Figure 3 and Figure 4 The transmission unit 3 includes a transmission belt 31, which is disposed inside the body 1 and extends along the length of the body 1. The body 1 is provided with a first roller group 32, a second roller group 33 and a third roller group 34. The first roller group 32 consists of four rollers and can be used to tension the transmission belt 31 into a rectangle inside the body 1, with the upper surface being horizontal, so as to transport sludge from one end of the body 1 to the other end. Multiple sets of the second roller group 33 and the third roller group 34 are provided and are evenly distributed above the transmission belt 31. Under the action of the second roller group 33 and the third roller group 34, the upper surface of the transmission belt 31 can form an inner groove 35.

[0032] Each second roller group 33 consists of two upper rollers located on the same horizontal plane, so that the conveyor belt 31 overlaps above the upper rollers, forming a fulcrum at the opening of the groove 35 of the conveyor belt 31. There is a gap between the two upper rollers, which forms the opening of the groove 35.

[0033] Each group of third rollers 34 consists of two lower rollers located on the same vertical plane, with the lower rollers positioned below the upper rollers and offset towards the feed inlet 11. The conveyor belt 31 overlaps the lower rollers, forming a bottom wall at the groove 35 of the conveyor belt 31. Since the lower rollers are located diagonally below the upper rollers, the groove 35 has an inclined surface 36. During use, sludge falls onto the horizontal surface above the conveyor belt 31 and moves forward under the drive of the conveyor belt 31. When it reaches the groove 35, the sludge falls onto the inclined surface 36 within the groove 35 due to its own weight, thus completing the tumbling of the sludge on one side. Since the inclined surface 36 is also part of the conveyor belt 31, it can move the sludge diagonally upwards to the horizontal surface above the conveyor belt 31, moving the sludge towards the other groove 35. This allows for multiple tumbling of the groove 35.

[0034] In another embodiment, the third roller assembly 34 can be a fixed column with both ends fixed to the machine body 1. The conveyor belt 31 overlaps the column, and relative friction is formed between the column and the conveyor belt 31, so that the column can scrape off the sludge adhering to the conveyor belt 31. The cross-sectional shape of the column can be circular or polygonal.

[0035] Please see Figure 4 and Figure 5 The screening unit 4 is located inside the groove 35. The screening unit 4 includes a filter plate 41 that is inclinedly installed inside the groove 35. The filter plate 41 is parallel to the inclined surface 36 and there is a distance between the filter plate 41 and the inclined surface 36, which allows sludge to pass through between the filter plate 41 and the inclined surface 36. There is a distance between the bottom of the filter plate 41 and the third roller group 34, which allows sludge to pass through between the distances. The top of the filter plate 41 extends to the space between the two upper rollers. Each groove 35 is provided with a filter plate 41. Multiple filter plates 41 are connected by a horizontal plate 42. An installation groove 43 is provided on the inner side wall of the machine body 1. The horizontal plate 42 is installed in the installation groove 43. A vibration motor 44 connected to the horizontal plate 42 is installed on the installation groove 43.

[0036] During use, the sludge is transported by the conveyor belt 31 towards the groove 35 and falls onto the filter plate 41. Since the filter plate 41 is inclined and a vibration motor 44 is installed on the horizontal plate 42, the vibration of the vibration motor 44 can cause the filter plate 41 to vibrate, thereby driving the sludge on the filter plate 41 to move towards the bottom of the groove 35. During the movement, small sludge particles will be screened out by the filter plate 41 and fall onto the inclined surface 36 in advance, so that the small sludge particles can be removed from the groove 35 in advance, shortening the movement path of the small sludge particles and thus shortening the drying time of the small sludge particles, avoiding over-drying of the small sludge particles. Meanwhile, the large sludge particles are guided to the bottom of the groove 35 by the filter plate 41, which can increase the movement path of the large sludge particles for drying, thereby increasing the drying time of the large sludge particles and ensuring that the large sludge particles are fully dried.

[0037] The filter holes in the multiple filter plates 41 are all different (not shown in the figure). Specifically, along the sludge conveying direction, the filter holes of the filter plates 41 gradually become larger, so that each time the sludge passes through a filter plate 41, larger sludge particles can be screened out and fall onto the inclined surface 36 in advance. Thus, the drying time of the sludge can be adjusted according to the particle size of the sludge. The smaller the particle size, the shorter the drying time, and the larger the particle size, the longer the drying time, thus avoiding the problem of uneven drying.

[0038] Please see Figure 2 The transmission unit 3 can be configured with multiple layers. In this embodiment, it is configured with two layers. The sludge can fall from the top layer onto the adjacent lower transmission unit 3 in sequence and move in opposite directions to increase the total path length of the sludge movement. At the same time, configuring the transmission unit 3 with multiple layers can also increase the number of times the sludge is turned over.

Claims

1. A sludge-water separation device for sludge treatment, comprising: The machine body (1) and the crushing unit (2) set on the machine body (1) are used to crush the sludge. The machine body (1) is equipped with a transmission unit (3) which can drive the sludge to move inside the machine body (1). The machine body (1) is also equipped with a heating unit for heating the sludge on the transmission unit (3). The transmission unit (3) is characterized in that it includes: a transmission belt (31), a first roller group (32), a second roller group (33) and a third roller group (34). The conveyor belt (31) is installed inside the machine body (1) for conveying sludge; The first roller group (32) consists of four rollers and is used to tension the conveyor belt (31) into a rectangle inside the machine body (1), which can transfer sludge from one end of the machine body (1) to the other end. The second roller group (33) and the third roller group (34) can form an inner groove (35) on the upper surface of the conveyor belt (31), so that the sludge can fall into the groove (35) during transportation.

2. The sludge-water separation equipment for sludge treatment according to claim 1, characterized in that: The second roller assembly (33) consists of two upper rollers, with the conveyor belt (31) overlapping the upper rollers to form a fulcrum at the opening of the groove (35) of the conveyor belt (31). There is a gap between the two upper rollers, which forms the opening of the groove (35).

3. The sludge-water separation equipment for sludge treatment according to claim 2, characterized in that: The third roller group (34) consists of two lower rollers, which are located below the upper roller. The conveyor belt (31) overlaps the lower roller, forming a bottom wall at the groove (35) of the conveyor belt (31) and shifting towards the feed port (11), so that the groove (35) forms an inclined surface (36).

4. The sludge-water separation equipment for sludge treatment according to claim 3, characterized in that: An inclined filter plate (41) is installed in the groove (35). There is a distance between the bottom of the filter plate (41) and the third roller group (34) so ​​that sludge can pass through the distance. The top of the filter plate (41) extends between the two upper rollers. There is a distance between the filter plate (41) and the inclined surface (36) so that sludge can pass through the distance between the filter plate (41) and the inclined surface (36).

5. The sludge-water separation equipment for sludge treatment according to claim 4, characterized in that: The second roller group (33) and the third roller group (34) are provided in multiple sets, so that the conveyor belt (31) forms multiple grooves (35).

6. The sludge-water separation device for sludge treatment according to claim 5, characterized in that: Each of the grooves (35) is provided with a filter plate (41), the filter plates (41) are connected by a horizontal plate (42), the machine body (1) is provided with an installation groove (43), the horizontal plate (42) is installed in the installation groove (43), and a vibration motor (44) connected to the horizontal plate (42) is installed on the installation groove (43).

7. The sludge-water separation device for sludge treatment according to claim 6, characterized in that: The filter holes in the multiple filter plates (41) are all different, and the filter holes gradually become larger in the direction of sludge conveyance.

8. The sludge-water separation equipment for sludge treatment according to claim 3, characterized in that: The third roller assembly (34) is a fixed column.

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