A plate-and-frame sludge breaking treatment device

Abstract

The utility model relates to a kind of plate-frame sludge crushing treatment device, and the sludge treatment technical field belongs to, including crushing plate-frame, the main drive crushing tool holder of the crushing plate-frame inside being equipped with extending out the both ends of crushing plate-frame, the driven crushing tool holder of the main drive crushing tool holder side being equipped with with the staggered and one end extending out the crushing plate-frame of main drive crushing tool holder, the main drive crushing tool holder, the driven crushing tool holder side all be equipped with the transmission gear of the tooth profile meshing of each other.The main drive crushing tool holder includes driving shaft, the driven crushing tool holder includes driven shaft, the driving shaft, driven shaft all be equipped with several crushing blade that present the staggered distribution of each other.The characteristics of high crushing efficiency, stable structure, easy maintenance and strong applicability are provided.The dewatered sludge cake is crushed, the efficiency of subsequent treatment is improved, and the wear of conveying equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, specifically to a plate and frame sludge crushing and treatment device. Background Technology

[0002] Even after concentration and digestion, sludge still retains approximately 95%–97% moisture content and a large volume. Sludge dewatering further removes pore water and capillary water, reducing its volume. After dewatering, the sludge moisture content can be reduced to 70%–80%, and its volume is reduced to 1 / 10–1 / 4 of its original volume, which is beneficial for subsequent transportation and treatment. Plate and frame filter presses are common solid-liquid separation equipment used for sludge dewatering and are still widely used in wastewater treatment plants in China. Their principle is to use pressure difference to separate liquid from solid material, thereby obtaining sludge with lower moisture content.

[0003] Filtration is typically the final step in wastewater treatment. Currently, sludge from plate and frame filter presses in wastewater treatment plants is mostly in plate form, requiring further crushing in subsequent treatment. The existing high-hardness, fragmented nature makes direct processing and utilization difficult. Therefore, based on the needs of land-based resource utilization of sludge, crushing the sludge treatment products from large pieces to smaller pieces has become a crucial step in the production process.

[0004] The prior art, "A Sludge Crushing and Molding Device," application number CN201621187576.4, discloses a device comprising a frame, a sludge crushing unit, a sludge molding unit, a scraping device, and a drive unit. The sludge crushing unit includes a pair of parallel crushing rollers, each equipped with non-contact, vertically aligned crushing blades. The scraping device includes an adjustable scraper and its adjustable scraper base. Compared to the complex structure of existing sludge molding equipment, this invention achieves its drive function using only a single variable frequency motor reducer. The perpendicular arrangement of the crushing blades allows for lateral shearing to break up sludge arches, while the upward force of the blades exerts downward pressure, ensuring better sludge molding. The unique design of the scraper angle prevents deformation of the sludge strips, thus preventing them from sticking together. The scraper adjustment device ensures that the sludge molding effect does not deteriorate with equipment deformation, increasing the overall lifespan of the device.

[0005] There are many types of existing crushing equipment. Most of the crushing equipment for sludge is used in the sludge drying industry. The purpose is to cut the sludge into small segments through the front-end crushing process, so that the drying equipment can distribute the material evenly and make it easy to dry. The requirements for crushing fineness are low. In addition, conventional crushers are not suitable for sludge with high moisture content. They are prone to material blockage during use, and their production capacity is worse than that of other materials. Therefore, they are difficult to apply to plate and frame sludge treatment. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a plate and frame sludge crushing and processing device. This device features high crushing efficiency, high structural stability, convenient maintenance, and strong applicability. It is used to crush dewatered sludge cakes, improving the efficiency of subsequent processing while reducing wear on conveying equipment.

[0007] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions:

[0008] A plate and frame sludge crushing and treatment device includes a crushing plate and frame. An active crushing blade holder extending from both ends of the crushing plate and frame is provided within the crushing plate and frame. A driven crushing blade holder, intersecting the active crushing blade holder and extending from one end of the crushing plate and frame, is provided on the side of each of the active and driven crushing blade holders. Both the active and driven crushing blade holders have meshing transmission gears on their sides. The active crushing blade holder includes a drive shaft, and the driven crushing blade holder includes a driven shaft. Both the drive shaft and the driven shaft are provided with a plurality of crushing blades arranged in an intersecting pattern.

[0009] The crushing plate frame serves as the main body of the device, internally housing both active and driven crushing blade holders. The active crushing blade holder extends beyond both ends of the crushing plate frame, with transmission gears on its sides for driving the rotation of the device. The driven crushing blade holder is staggered with the active crushing blade holder, extending beyond the crushing plate frame at one end to collaboratively crush the sludge. Both the active and driven shafts are equipped with several staggered crushing blades for shearing and crushing the sludge.

[0010] Preferably, the other end of the active crushing tool holder is provided with a driving component, the driving component includes a motor, and a coupling is provided between the motor and the drive shaft.

[0011] Preferably, a bearing seat is provided between the coupling and the crushing plate frame, which is nested and connected to the drive shaft.

[0012] The drive assembly includes a motor, a coupling, and bearing housings. The motor is connected to the drive shaft via the coupling, and the drive shaft drives the active crusher holder to rotate. The bearing housings are used to fix the coupling and ensure stable transmission.

[0013] Preferably, a grid frame is provided between the lower part of the active crushing cutter holder and the inner wall of the crushing plate frame, and between the lower part of the driven crushing cutter holder and the inner wall of the crushing plate frame. The grid frame is located at the lower part of the active and driven crushing cutter holders, forming a support structure between itself and the inner wall of the crushing plate frame, which is used to fix the cutter holders and prevent sludge from directly impacting the plate frame.

[0014] Preferably, the grid frame includes a pair of longitudinal support rods, with a number of horizontal grid bars spaced apart between the two longitudinal support rods. The grid frame consists of a pair of longitudinal support rods and 23 horizontal grid bars, which are spaced apart to provide sufficient support and breakage space.

[0015] Preferably, bearings are provided on both sides of the drive shaft and between it and the crushing plate frame, and on both sides of the driven shaft and between it and the crushing plate frame. These bearings are used to support the rotating shafts and reduce friction.

[0016] This invention can achieve the following effects:

[0017] This invention provides a plate and frame sludge crushing and treatment device, which, compared with the prior art, features high crushing efficiency, high structural stability, convenient maintenance, and strong applicability. It is used to crush dewatered sludge cake, improving the efficiency of subsequent treatment while reducing wear on conveying equipment.

[0018] The technical solution of this utility model to solve the above problems is as follows:

[0019] 1. The motor drives the operation, causing the drive shaft and driven shaft to rotate, which in turn drives the crushing blades on the two shafts to rotate in opposite directions. This shears and crushes the sludge in the feed plate frame. The crushed small particles are discharged through the gaps between the crushing blades along the tangent of their rotation, while larger particles continue to be crushed into smaller particles and discharged. A grid frame fixed to the crushing plate frame prevents large particles from being discharged through the operating gaps, thus allowing them to continue being crushed inside the chamber.

[0020] 2. Considering the high moisture content of plate and frame sludge, and based on the working principle of a drum crusher, the crusher drum is improved by adopting a specially designed toothed blade drum. The blades and the horizontal bars between the blades are arranged at intervals. The spacing between the crushing blades and the horizontal bars is set to 3 to 8 mm according to the crushing target. This makes it easy for the high-hardness, high-moisture plate and frame sludge to be crushed into small pieces by the blades (small pieces of sludge have less water output and are less likely to stick together). The crushing effect is better, and when the crushing blades rotate, they carry the sludge into the conveyor belt below, making it difficult to cause material blockage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a top view of the structure of this utility model.

[0023] Figure 3 This is a structural cross-sectional view of the present invention.

[0024] Figure 4 This is a schematic diagram of the drive component in this utility model.

[0025] Figure 5 This is a schematic diagram of the active crushing tool holder in this utility model.

[0026] Figure 6This is a schematic diagram of the grid frame in this utility model.

[0027] In the diagram: 1. Crushing plate frame; 2. Grid frame; 3. Active crushing cutter holder; 4. Driven crushing cutter holder; 5. Drive assembly; 6. Bearing; 7. Transmission gear; 8. Crushing blade; 9. Driven shaft; 10. Motor; 11. Coupling; 12. Bearing housing; 13. Horizontal grid bar; 14. Longitudinal support rod. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0029] Example: Figure 1-6 As shown, a plate and frame sludge crushing and treatment device includes a crushing plate and frame 1. An active crushing blade holder 3 extends from both ends of the crushing plate and frame 1 within the crushing plate and frame 1. A driven crushing blade holder 4, intersecting the active crushing blade holder 3 and extending from one end of the crushing plate and frame 1, is provided on the side of the active crushing blade holder 3. A grid frame 2 is provided between the lower part of the active crushing blade holder 3 and the inner wall of the crushing plate and frame 1, and between the lower part of the driven crushing blade holder 4 and the inner wall of the crushing plate and frame 1. The grid frame 2 includes a pair of longitudinal support rods 15, and 23 horizontal grid bars 14 spaced apart between the two longitudinal support rods 15. Both the active crushing blade holder 3 and the driven crushing blade holder 4 have mutually meshing transmission gears 7 on their sides. A drive assembly 5 is provided at the other end of the active crushing blade holder 3. The drive assembly 5 includes a motor 11, a coupling 12 between the motor 11 and the drive shaft 9, and a bearing seat 13 nested and connected to the drive shaft 9 between the coupling 12 and the crushing plate and frame 1. The active crusher holder 3 includes an active shaft 9, and the driven crusher holder 4 includes a driven shaft 10. Both the active shaft 9 and the driven shaft 10 are equipped with 24 crushing blades 8 arranged in an alternating pattern. Bearings 6 are provided between the active shaft 9 and the crushing plate frame 1 on both sides, and between the driven shaft 10 and the crushing plate frame 1 on both sides.

[0030] The working principle is as follows:

[0031] (1) Crushing process: Sludge enters the crushing plate frame 1 through the feed inlet. The crushing blades of the active crushing blade holder 3 and the driven crushing blade holder 4 shear and crush the sludge during rotation. The grid frame 2 provides support and prevents the sludge from directly impacting the crushing plate frame, thus extending the service life of the equipment.

[0032] (2) Transmission system: The motor 11 drives the drive shaft 9 to rotate through the coupling 12 and the bearing housing 13. The drive shaft 9 drives the driven shaft 10 to rotate through the gear 7, thereby realizing the coordinated work of the two tool holders.

[0033] (3) Crushing effect: The staggered distribution design of the crushing blades ensures that the sludge is fully crushed, avoids large pieces of sludge from passing through, and improves crushing efficiency. The buffering effect of the grid frame further protects the equipment and extends its service life.

[0034] In summary, this plate and frame sludge crushing and treatment device features high crushing efficiency, high structural stability, convenient maintenance, and strong applicability. It is used to crush dewatered sludge cakes, improving the efficiency of subsequent treatment while reducing wear on conveying equipment.

[0035] High crushing efficiency: Through the synergistic effect of the active and driven crushing cutters, and the multiple shearing of the sludge, the crushing effect is significant.

[0036] Structural stability: The support design of the grid frame enhances the stability of the equipment while reducing the impact on the plate frame.

[0037] Easy maintenance: The grid frame and crushing blades are detachable, making them easy to replace and maintain.

[0038] High applicability: Suitable for various sludge treatment scenarios, such as sewage treatment plants and industrial sludge treatment.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A plate-and-frame sludge breaking treatment device, characterized by: The system includes a crushing frame (1), which has an active crushing blade holder (3) extending out of both ends of the crushing frame (1). The active crushing blade holder (3) has a driven crushing blade holder (4) on its side that intersects with the active crushing blade holder (3) and extends out of the crushing frame (1) at one end. Both the active crushing blade holder (3) and the driven crushing blade holder (4) have transmission gears (7) that mesh with each other on their sides. The active crushing blade holder (3) includes an active shaft (9), and the driven crushing blade holder (4) includes a driven shaft (10). Both the active shaft (9) and the driven shaft (10) have several crushing blades (8) that are distributed in an interlaced manner. The active crushing cutter holder (3) is provided with a drive assembly (5) at the other end. The drive assembly (5) includes a motor (11). A coupling (12) is provided between the motor (11) and the drive shaft (9). A grid frame (2) is provided between the lower part of the active crushing cutter holder (3) and the inner wall of the crushing plate frame (1), and between the lower part of the driven crushing cutter holder (4) and the inner wall of the crushing plate frame (1). The grid frame (2) includes a pair of longitudinal support rods (15). Several horizontal grid bars (14) are provided between the two longitudinal support rods (15) at intervals.

2. A plate and frame sludge breaking treatment device according to claim 1, characterized in that: The coupling (12) and the crushing plate frame (1) are provided with a bearing seat (13) that is nested and connected to the drive shaft (9).

3. A plate and frame sludge breaking treatment device according to claim 1, characterized in that: Bearings (6) are provided on both sides of the drive shaft (9) and between the crushing plate frame (1), and on both sides of the driven shaft (10) and between the crushing plate frame (1).

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