Riverway management sludge treatment system

Abstract

This utility model relates to the field of sludge treatment, specifically to a sludge treatment system for river management. Located in the middle of a vessel, the system comprises three longitudinal zones: thickening, solidification, and sludge storage. In the thickening zone, the sludge undergoes initial dewatering through an inclined initial filter belt, pre-compression rollers, and gravity. In the solidification zone, an S-shaped extrusion path is formed by upper and lower high-pressure filter belts and staggered press rollers, combined with a serrated texture to enhance the extrusion effect and further reduce the moisture content. In the sludge storage zone, the sludge cake is transferred or temporarily stored via the forward and reverse rotation of the storage belt, ensuring continuous processing.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment, specifically to a sludge treatment system for river management. Background Technology

[0002] With the acceleration of urbanization and industrial development, the amount of sewage sludge generated is increasing daily. Traditional sewage sludge treatment is mostly carried out in fixed ground facilities, but in some special scenarios, such as inland river dredging and waste treatment in near-shore aquaculture areas, there is a need for equipment that can be flexibly moved and efficiently treat sewage sludge. River remediation sludge treatment systems have emerged to meet this need; however, existing river remediation sludge treatment systems suffer from problems such as unreasonable layout and low treatment efficiency. Utility Model Content

[0003] In view of the above, the purpose of this utility model is to provide a river sludge treatment system to address the problems of the prior art.

[0004] The river sludge treatment system of the present invention includes a concentration zone, a solidification zone, and a sludge storage zone located in the middle of the hull and arranged sequentially along the longitudinal direction of the hull.

[0005] Thickening Zone: The thickening zone includes inclined initial filter belts made of woven fibers, offering good permeability and strength. Sludge is transported via a suction hopper to a sludge distributor above the initial filter belts. The distributor evenly distributes the sludge from the pipeline onto the initial filter belts. Under gravity, a large amount of free water permeates through the filter belts, achieving initial thickening and transforming the sludge from a thin suspension into a thick slurry-like state with a significantly reduced water content.

[0006] Solidification Zone: The solidification zone is equipped with two high-pressure filter belts and a pressing roller assembly. The pressing roller assembly consists of staggered pressing rollers, and the two high-pressure filter belts are supported by the pressing roller assembly to form an S-shaped extrusion path. After the sludge enters the S-shaped extrusion path, under the extrusion action, the bound water inside the sludge is forcefully squeezed out, while the solids are trapped between the two filter belts, achieving deep dewatering and solidification of the sludge, ultimately forming a sludge cake with low moisture content.

[0007] Sludge Storage Area: The sludge storage area serves as a transfer and temporary storage area. When a receiving vessel arrives, a transverse conveyor belt extends to the sludge discharge point in the solidification zone, transferring the sludge cake to the receiving vessel for timely transport. When the receiving vessel is not present, the sludge storage belt below the sludge storage area can temporarily store the sludge cake. Upon the arrival of the receiving vessel, the sludge cake is then transferred via conveyor belt, ensuring the continuity of the sludge cake processing process.

[0008] Drainage design: Baffles are installed between the concentration zone and the solidification zone and below the sludge storage zone to direct the water discharged during the dewatering process to the outside of the hull and prevent sewage from accumulating inside the ship.

[0009] Beneficial effects

[0010] High-efficiency processing: The unique design of the concentration and solidification zones enables rapid initial concentration and deep dewatering and solidification of sludge, significantly improving sludge treatment efficiency. For example, the inclined initial filter belt and the uniformly distributed sludge distributor make the gravity dewatering process more efficient. The S-shaped extrusion path and staggered press rollers in the solidification zone enable deep dewatering and solidification of the sludge.

[0011] Flexible transportation: The dual-function design of the sludge storage area, namely transfer and temporary storage, solves the problem of untimely transportation of sludge cakes in shipborne sludge treatment, ensures the continuity of the entire treatment process, and improves the practicality of the shipborne sludge treatment system. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0013] Figure 2 This is a side view of the present application;

[0014] Figure 3 This is a schematic diagram of the front view of this application;

[0015] Figure 4 This is a schematic diagram of the installation state of this application on the hull;

[0016] Reference numerals: 1. Initial filter belt; 2. Pre-pressing roller; 3. High-pressure filter belt; 4. Pressing roller group; 5. Sludge storage belt; 6. Guide plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1 to 4 The system shown is a river sludge treatment system located in the middle of the hull, with a concentration zone, a solidification zone and a sludge storage zone arranged sequentially along the longitudinal direction of the hull.

[0019] The concentration zone includes an inclined initial filter belt 1, which is woven from high-strength synthetic fibers and has good permeability and strength. Sludge is transported via a suction hopper to a sludge distributor above the initial filter belt 1. The sludge distributor, using existing technology, can evenly distribute the sludge transported from the pipeline onto the initial filter belt 1. When a ship collects sludge in the water, it is transported via a suction hopper to the sludge distributor above the initial filter belt 1. The sludge distributor evenly distributes the sludge onto the initial filter belt 1. A large amount of free water in the sludge passes vertically through the initial filter belt 1. Simultaneously, the pre-compression roller 2 at the starting end of the initial filter belt 1 pre-compresses the sludge, accelerating the separation of free water from the outset. Furthermore, because the initial filter belt 1 is inclined downwards from the end to the beginning, some free water flows towards the initial end under gravity and is concentrated and squeezed down by the pre-compression roller 2. After this comprehensive treatment, the sludge changes from a thin suspension to a thick slurry-like state, with a significantly reduced water content, and then enters the solidification zone.

[0020] The solidification zone is equipped with two high-pressure filter belts 3 and a press roller assembly 4. The press roller assembly 4 includes staggered press rollers, and the two high-pressure filter belts 3 are supported by the press roller assembly 4 to form an S-shaped extrusion path. A serrated anti-slip texture can be provided on the surface of the high-pressure filter belts 3. The sludge, after preliminary dewatering from the concentration zone, enters the solidification zone between the two high-pressure filter belts 3. Due to the staggered arrangement of the press roller assembly 4, the two high-pressure filter belts 3 form an S-shaped extrusion path. During the operation of the high-pressure filter belts 3, the sludge moves with the high-pressure filter belts 3, and under the repeated extrusion of the press rollers, the water is further squeezed out. The serrated anti-slip texture on the surface of the high-pressure filter belts 3 effectively prevents sludge slippage and ensures the extrusion effect.

[0021] The mud storage area serves as a transfer point. A mud storage belt 5 is installed within the mud storage area. Figure 2 Taking a specific perspective as an example, when the shuttle ship is present, the mud storage belt 5 rotates clockwise. Mud cakes falling from the solidification zone pass through mud storage belt 5 and then fall onto the transverse conveyor belt of the shuttle ship, achieving timely transfer of the mud cakes. When the shuttle ship is not present, mud storage belt 5 rotates counterclockwise, and the fallen mud cakes are temporarily stored on it. When the shuttle ship arrives again, the mud storage belt 5 is restarted to rotate clockwise, causing the mud cakes to slide off from mud storage belt 5 onto the conveyor belt of the shuttle ship, ensuring the continuity of the mud cake processing process.

[0022] In addition, a guide plate 6 is provided between the concentration zone and the solidification zone and below the sludge storage zone. The guide plate 6 is umbrella-shaped and can guide the water discharged during the dewatering process to the outside of the hull.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge treatment system for river management, characterized in that, The system includes a concentration zone, a solidification zone, and a sludge storage zone arranged longitudinally along the hull. The concentration zone includes an initial filter belt (1). The solidification zone is provided with two high-pressure filter belts (3) and a press roller assembly (4). The press roller assembly (4) includes press rollers arranged in an alternating pattern. The two high-pressure filter belts (3) are supported by the press roller assembly (4) to form an S-shaped extrusion path. The sludge storage zone is provided with a sludge storage belt (5). An umbrella-shaped guide plate (6) is provided between the concentration zone and the solidification zone and below the sludge storage zone.

2. The river sludge treatment system according to claim 1, characterized in that, The initial filter belt (1) is set at an angle, with its angle tilting downward from the end to the beginning.

3. The river sludge treatment system according to claim 2, characterized in that, A pre-compression roller (2) is provided at the starting end of the initial filter belt (1).

4. The river sludge treatment system according to claim 3, characterized in that, The surface of the high-pressure filter belt (3) is provided with serrated anti-slip texture.

Images