Multifunctional equipment capable of being used for sludge hopper of secondary sedimentation tank

Abstract

The utility model provides multifunctional equipment for a sludge bucket of a secondary sedimentation tank, which comprises a crusher and an elevator, the elevator is mounted at the upper part of a central upright post of the secondary sedimentation tank, the crusher is positioned at the upper part of the sludge bucket and is directly connected with the sludge bucket through a lifting rod, a crushing roller driven by a motor is arranged in the crusher, and a filter screen box is arranged at a lower outlet of the crusher. The upper part of the crusher is provided with four symmetrical connecting rods, the upper ends of the diagonal connecting rods are connected and fixed through ejector rods, the lower end of the lifting rod is connected to the intersection of the middle parts of the two ejector rods, the tops of the upright posts are provided with connecting bridges, and the front parts of the upright posts are provided with access doors capable of being opened and closed. The device integrates crushing, filtering and lifting functions, is compact in structure, stable in operation, accurate and stable in mounting and positioning of the crusher, and capable of reducing vibration displacement, the connecting bridge and the access door are convenient to maintain, the fault occurrence rate is reduced, the service life of equipment is prolonged, and the treatment efficiency and quality of the sludge hopper of the secondary sedimentation tank are improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and more specifically, to a multifunctional device that can be used in the sludge hopper of a secondary sedimentation tank. Background Technology

[0002] The secondary sedimentation tank is a core structure in a wastewater treatment system, primarily used to separate sludge from water through gravity settling. The sludge hopper, as a crucial structure at the bottom of the secondary sedimentation tank, is responsible for collecting and temporarily storing the settled sludge. However, traditional sludge hoppers suffer from the following problems in actual operation:

[0003] 1. Sludge deposition and blockage: Sludge in the hopper is prone to caking due to poor flowability or accumulation of fibrous impurities, resulting in poor sludge discharge or even blockage, requiring frequent manual cleaning and affecting treatment efficiency.

[0004] 2. Difficult to maintain: Traditional crushers are usually fixed inside the sludge hopper. During maintenance, the sludge must be emptied and the operator must enter the narrow hopper to operate, which poses a safety hazard and is time-consuming.

[0005] 3. Insufficient structural stability: Some equipment is suspended and is prone to displacement under the impact of sludge or mechanical vibration, which affects the crushing effect and the service life of the equipment.

[0006] To address the aforementioned issues, some improvements have been implemented in existing technologies, such as adding a stirring device to the sludge hopper or using a screw conveyor to assist in sludge discharge. However, these solutions still suffer from drawbacks such as low functional integration, high energy consumption, or inability to simultaneously resolve sludge hopper clogging and maintenance difficulties. Therefore, there is an urgent need to develop a multi-functional device that integrates crushing and lifting functions while being easy to maintain, in order to optimize the sludge treatment process in secondary sedimentation tanks. Utility Model Content

[0007] Based on the above-mentioned problems, this utility model provides a multi-functional device that can be used in the sludge hopper of a secondary sedimentation tank. It aims to solve problems such as sludge blockage in the sludge hopper, low treatment efficiency, and difficult equipment maintenance. By integrating crushing, lifting, and rapid positioning functions, it achieves efficient sludge treatment and convenient equipment maintenance.

[0008] A multifunctional device for use in a sludge hopper of a secondary sedimentation tank includes: a crusher and a hoist. The hoist is installed on the upper part of a central column of the secondary sedimentation tank, and the sludge hopper is arranged adjacent to the column. The crusher is installed on the upper part of the sludge hopper. The lifting rod on the hoist is vertically connected to the crusher. The crusher is equipped with a pair of crushing rollers, which are driven by a motor. A filter screen box is provided at the lower outlet of the crushing rollers, and the filter screen box is located at the lower part of the sludge hopper.

[0009] Preferably, the upper part of the sludge hopper is provided with an installation platform, and each of the four corners of the installation platform is provided with a positioning pin. The crusher is matched with the upper part of the sludge hopper so that it can be firmly clamped to the upper part of the sludge hopper. The four corners of the crusher are provided with positioning holes that correspond to the positioning pins.

[0010] Preferably, the diameter of the positioning hole gradually decreases from bottom to top, and the diameter of the upper end of the positioning hole matches the diameter of the positioning pin.

[0011] Preferably, the inner wall of the positioning hole is provided with a deformable elastic layer.

[0012] Preferably, the upper part of the crusher is provided with four symmetrically arranged connecting rods, the upper ends of the diagonally opposite connecting rods are connected and fixed by the top rods, and the lower end of the lifting rod is connected to the connection point of the middle of the two top rods.

[0013] Preferably, the top of the column is provided with a connecting bridge, and the front of the connecting bridge is provided with an openable and closable maintenance door.

[0014] Beneficial effects:

[0015] 1. The combination of crusher and filter box realizes the crushing and filtration of sludge, improving the efficiency and quality of sludge treatment;

[0016] 2. The direct connection design between the elevator and the crusher simplifies the structure and facilitates operation and control;

[0017] 3. The placement of positioning pins, positioning holes, and elastic layers ensures the stability and precision of the crusher installation, reducing vibration and displacement during operation;

[0018] 4. The design of the connecting bridge and inspection door facilitates equipment maintenance and management, reduces the failure rate, and extends the service life of the equipment. Attached Figure Description

[0019] Figure 1 A schematic diagram of a secondary sedimentation tank using this invention is shown;

[0020] Figure 2 A schematic diagram of the structure of this utility model is shown;

[0021] Figure 3 A schematic diagram of the internal structure of the secondary sedimentation tank is shown;

[0022] Figure 4 A schematic diagram of the crusher's structure is shown. Figure 1 ;

[0023] Figure 5 A schematic diagram of the crusher's structure is shown. Figure 2 . Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] like Figures 1-5 The device shown is a multi-functional device that can be used in a secondary sedimentation tank 1 and a sludge hopper 4, including a crusher 5, an elevator 6 and matching positioning and connecting components.

[0026] The elevator 6 is installed on the upper part of the central column 2 of the secondary sedimentation tank 1. The sludge hopper 4 is set adjacent to the column 2, and the lower part of the sludge hopper 4 is connected to the sludge discharge pipe 8. The crusher 5 is installed on the upper part of the sludge hopper 4. The elevator 6 is vertically connected to the crusher 5 through the lifting rod 7 to form a vertical linkage system. The lifting rod 7 can adopt a multi-section lifting structure. Through the lifting rod 7, the elevator 6 can precisely control the lifting and lowering of the crusher 5. It can adjust the contact depth between the crusher 5 and the sludge layer during operation, and can also lift the crusher 5 out of the sludge hopper 4 as a whole during maintenance, avoiding manual entry into the sludge hopper for operation.

[0027] The crusher 5 is equipped with a pair of crushing rollers 9, which rotate bidirectionally driven by a motor located in a closed chamber 10 at one end of the crusher 5's outer shell. The double-roller design effectively crushes fibers and lumps in the sludge through shearing and compression, preventing sludge caking. The motor speed can be adjusted according to the characteristics of the sludge to adapt to different operating conditions.

[0028] A filter screen box 13 is installed at the lower outlet of the crushing roller 9, and the filter screen box 13 is located at the bottom of the sludge hopper 4. The filter screen box 13 performs secondary screening of the crushed sludge, which can intercept large particles of impurities that are not fully crushed, and ensure the unobstructed flow of the sludge discharge pipe 8.

[0029] The upper part of the sludge hopper 4 is provided with an installation platform 41, and each of the four corners of the platform is provided with a positioning pin 42. The four corners of the crusher 5 are provided with positioning holes 51. The positioning pins 42 and the positioning holes 51 are matched to achieve quick snap-fit, ensuring that the crusher 5 can be horizontally aligned during installation, and avoiding equipment vibration or uneven force due to installation offset.

[0030] Furthermore, the diameter of the positioning hole 51 gradually decreases from bottom to top, and its upper diameter matches the diameter of the positioning pin 42. The tapered hole structure guides the positioning pin 42 to automatically center, improving the installation accuracy. The inner wall of the positioning hole 51 is provided with a deformable elastic layer, such as a rubber pad. The elastic layer buffers vibration and impact, and at the same time compensates for installation tolerances through deformation, thereby enhancing structural stability.

[0031] The upper part of the crusher 5 is equipped with four symmetrically distributed connecting rods 11. The upper ends of the diagonally opposite connecting rods 11 are connected and fixed by top rods 12. The lower end of the lifting rod 7 is connected to the connection point in the middle of the two top rods 12. The four-link structure can evenly distribute the lifting force to the four corners of the crusher 5, avoiding deformation caused by single-point force. The connection of the top rods 12 further strengthens the overall structure and ensures that the equipment can be lifted and lowered smoothly during the lifting process.

[0032] The top of the column 2 is equipped with a connecting bridge 3, and the front of the connecting bridge 3 is equipped with an openable maintenance door 14. Maintenance personnel can reach the maintenance door 14 through the connecting bridge 3. By going down through the maintenance door 14, they can inspect or replace parts on the upper part of the elevator 6 and the crusher 5, avoiding the need for maintenance personnel to enter the sludge hopper 4, which significantly improves safety and maintenance efficiency.

[0033] In addition, the crusher 5 can be removed from the elevator 6 using other hoisting equipment and hoisted to the maintenance area through the inspection door 14 for more detailed inspection and maintenance.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional device that can be used in the sludge hopper of a secondary sedimentation tank, characterized in that, The multifunctional equipment includes a crusher and an elevator. The elevator is installed on the upper part of the central column of the secondary sedimentation tank. The sludge hopper is located adjacent to the column. The crusher is installed in the upper part of the sludge hopper. The lifting rod on the elevator is vertically connected to the crusher. The crusher is equipped with a pair of crushing rollers, which are driven by a motor. A filter box is provided at the lower outlet of the crushing rollers, and the filter box is located in the lower part of the sludge hopper.

2. The multifunctional device for use in secondary sedimentation tank sludge hoppers according to claim 1, characterized in that, The upper part of the sludge hopper is provided with an installation platform, and each of the four corners of the installation platform is provided with a positioning pin. The crusher is matched with the upper part of the sludge hopper so that it can be firmly clamped on the upper part of the sludge hopper. The four corners of the crusher are provided with positioning holes that correspond to the positioning pins.

3. The multifunctional device for use in the sludge hopper of a secondary sedimentation tank according to claim 2, characterized in that, The diameter of the positioning hole gradually decreases from bottom to top, and the diameter of the upper end of the positioning hole matches the diameter of the positioning pin.

4. The multifunctional device for use in the sludge hopper of a secondary sedimentation tank according to claim 3, characterized in that, The inner wall of the positioning hole is provided with a deformable elastic layer.

5. The multifunctional device for use in secondary sedimentation tank sludge hoppers according to claim 1, characterized in that, The upper part of the crusher is provided with four symmetrically arranged connecting rods. The upper ends of the diagonally opposite connecting rods are connected and fixed by top rods, and the lower end of the lifting rod is connected to the connection point of the middle of the two top rods.

6. The multifunctional device for use in the sludge hopper of a secondary sedimentation tank according to claim 1, characterized in that, The top of the column is provided with a connecting bridge, and the front of the connecting bridge is provided with an openable maintenance door.

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