A stackable skid-mounted microsand sedimentation system
Through the integrated design of the stackable skid-mounted microsand sedimentation system, the problems of long construction cycle and large land area of traditional microsand sedimentation systems have been solved, achieving the effects of rapid deployment and land saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG DAHENG ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional microsand sedimentation systems have long construction cycles, are immobile, occupy a large area, and are difficult to deploy quickly, especially in emergency or overseas projects where their application is limited.
Adopting a stackable skid-mounted design, utilizing the modular structure of standard containers, it supports both flat and stacked layout modes. Through corner fittings, it integrates with equipment such as mixing chambers, micro-sand sedimentation and sludge thickeners, and coagulation dosing machines to achieve rapid transportation and deployment.
It enables rapid deployment of facilities and saves land use; when stacked, it can save more than 50% of land use and solves maintenance and operation problems.
Smart Images

Figure CN224467611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of microsand sedimentation equipment, specifically a stackable skid-mounted microsand sedimentation system. Background Technology
[0002] Microsand sedimentation is a compact water treatment process that integrates chemical coagulation sedimentation, microsand gravity flocculation, and inclined tube sedimentation technologies. Microsand sedimentation systems are suitable for treating municipal sewage and industrial wastewater. Traditional microsand sedimentation systems typically use reinforced concrete structures, resulting in relatively long construction periods, immobility after construction, and difficulty in rapid deployment in emergency or overseas projects. Furthermore, they are generally single-story designs, requiring a large floor area. Therefore, an improved technology is urgently needed to address these issues in existing technologies. Utility Model Content
[0003] The purpose of this invention is to provide a stackable skid-mounted microsand sedimentation system to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a stackable skid-mounted microsand sedimentation system, comprising a skid and a second skid; corner fittings are provided at the four corners of the bottom and top of the first and second skids, the second skid is located at the top of the first skid, and the four corners of the top of the first skid are fastened to the four corners of the bottom of the second skid through corner fittings and bolts and nuts.
[0005] The skid is equipped with several mixing chambers, a micro-sand sedimentation scraper and thickener, a coagulation dosing machine, a coagulation aid dosing machine and a sludge discharge pump. The top of the skid is equipped with a sludge storage hopper.
[0006] The two skids are equipped with a micro-sand separator, a sludge tank, a sludge filter press pump and a filter press. A liftable cover is installed at the bottom of the two skids and above the mixing chamber and the micro-sand sedimentation scraper thickener. The sludge storage hopper is located directly below the outlet of the filter press, and an electric sludge discharge valve is installed at the bottom of the sludge storage hopper.
[0007] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein the mixing chambers are adjacent to each other and interconnected through through holes, the microsand sedimentation scraper thickener is interconnected with the adjacent mixing chambers through through holes, the mixing chambers are equipped with a stirring paddle, the stirring paddle is connected to a motor through a main shaft, and the motor is located at the top of one skid and inside the second skid.
[0008] Preferably, the present invention provides a stackable skid-mounted micro-sand sedimentation system, wherein the micro-sand sedimentation scraper thickener is internally equipped with an agitator, a scraper, an inclined plate and an overflow trough, the bottom of the micro-sand sedimentation scraper thickener is connected to the input end of a sludge discharge pump through a pipe, and the output end of the sludge discharge pump is connected to the inlet end of a micro-sand separator through a pipe.
[0009] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein the coagulant dosing machine and the coagulant aid dosing machine are respectively connected to the mixing chamber via liquid pumps.
[0010] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein the bottom of the microsand separator is connected to the sludge tank via a pipe, and the top of the microsand separator is connected to the mixing chamber via a pipe.
[0011] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein the inlet end of the sludge filter press pump is connected to the inside of the sludge tank through a pipe, and the outlet end of the sludge filter press pump is connected to the inlet end of the filter press through a pipe.
[0012] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein the bottom of the filter press is provided with a receiving trough, the receiving trough is provided with a sludge discharge pipe, the sludge discharge pipe passes through a first skid and a second skid and extends into a sludge storage hopper.
[0013] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein one side of the first skid and the second skid is provided with a fixed ladder by means of a locking buckle.
[0014] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein both the first skid and the second skid are equipped with electrical control cabinets.
[0015] Preferably, the present invention provides a stackable skid-mounted microsand sedimentation system, wherein both the first skid and the second skid are provided with small doors on their sides.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) By adopting the modular design of standard containers, rapid transportation and deployment can be achieved, and both flat and stacked layout modes are supported. When stacked, special corner brackets are used for fixing, and the overall facility can save more than 50% of land.
[0018] (2) A liftable cover is installed at the bottom of the second skid and above the mixing chamber and the micro-sand sedimentation scraper thickener to solve the maintenance and operation problems when stacked. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a top view of the structure of this utility model located inside a skid;
[0021] Figure 3 This is a top view of the structure of the present invention located inside the two skids;
[0022] Figure 4 For the appendix Figure 3 Schematic diagram of the overall structure of the cross-section at point AA;
[0023] Figure 5 For the appendix Figure 3 Schematic diagram of the overall structure of the cross-section at point BB;
[0024] Figure 6 This is a schematic diagram showing the state of this utility model when the three pry bar is installed.
[0025] In the diagram: 1. Skid 1, 2. Skid 2, Corner fitting, 3. Mixing chamber, 4. Micro-sand sedimentation scraper thickener, 5. Coagulation dosing machine, 6. Coagulation aid dosing machine, 7. Sludge discharge pump, 8. Sludge storage hopper, 9. Micro-sand separator, 10. Sludge tank, 11. Sludge filter press pump, 12. Filter press, 13. Liftable cover, 14. Electric sludge discharge valve, 15. Through hole, 16. Mixing paddle, 17. Motor, 18. Agitator, 19. Scraper, 20. Inclined plate, 21. Overflow trough, 22. Receiving trough, 23. Sludge drop pipe, 24. Fixed ladder, 25. Electrical control cabinet, 26. Small door. Detailed Implementation
[0026] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] Please see Figure 1-5This utility model provides a technical solution: a stackable skid-mounted microsand sedimentation system, including a skid 1 and a skid 2; corner pieces 3 are provided at the four corners of the bottom and top of the skid 1 and the skid 2, the skid 2 is located at the top of the skid 1, and the four corners of the top of the skid 1 are fastened to the four corners of the bottom of the skid 2 by the corner pieces 3 and bolts and nuts. A fixed ladder 25 is provided on one side of the skid 1 and the skid 2 by a latch to facilitate climbing into the skid 2. An electrical control cabinet 26 is provided inside the skid 1 and the skid 2 to realize the control and power supply of various equipment. A small door 27 is provided on the side of the skid 1 and the skid 2 to facilitate maintenance personnel to enter the skid 1 and the skid 2.
[0029] The interior of the skid 1 is equipped with several mixing chambers 4, a micro-sand sedimentation scraper and thickener 5, a coagulation dosing machine 6, a coagulation aid dosing machine 7, and a sludge discharge pump 8. The top of the interior of the skid 1 is equipped with a sludge storage hopper 9. An air compressor can also be installed inside the skid 1. The sludge discharge pump 8 is a pneumatic diaphragm pump driven by an air compressor, which is more suitable for micro-sand sedimentation process.
[0030] The mixing chambers 4 are adjacent to each other and interconnected through the through holes 16. The micro-sand sedimentation scraper thickener 5 is interconnected with the adjacent mixing chambers 4 through the through holes 16 to ensure that the raw water can smoothly enter the micro-sand sedimentation scraper thickener 5 from the mixing chamber 4. The adjacent through holes 16 are arranged vertically to ensure the flow of the raw water. The through holes 16 on the side wall of the micro-sand sedimentation scraper thickener 5 are located at the top. The mixing chamber 4 is equipped with a stirring paddle 17. The stirring paddle 17 is connected to the motor 18 through the main shaft. The motor 18 is located at the top of the first skid 1 and inside the second skid 2. The stirring paddle 17 is used to mix and stir the raw water and the chemical solution.
[0031] The coagulant dosing machine 6 and the coagulant aid dosing machine 7 are connected to the mixing chamber 4 via liquid pumps, so as to pump the coagulant and coagulant aid liquid into the mixing chamber 4.
[0032] The micro-sand sedimentation scraper thickener 5 is equipped with an agitator 19, a scraper 20, an inclined plate 21, and an overflow trough 22. The agitator 19 drives the scraper 20 to rotate slowly to scrape the settled sludge to the bottom of the center position of the micro-sand sedimentation scraper thickener 5. The inclined plate 21 is used to block suspended particles, and the overflow trough 22 is used for the overflow of clarified water. The bottom of the micro-sand sedimentation scraper thickener 5 is connected to the input end of the sludge discharge pump 8 through a pipe. The output end of the sludge discharge pump 8 is connected to the inlet end of the micro-sand separator 10 through a pipe to ensure that the sludge can be smoothly pumped out of the micro-sand sedimentation scraper thickener 5 through the sludge discharge pump 8 and enter the micro-sand separator 10.
[0033] The interior of the second skid 2 is equipped with a micro sand separator 10, a sludge tank 11, a sludge filter press pump 12 and a filter press 13. A liftable cover plate 14 is installed at the bottom of the second skid 2 and above the mixing chamber 4 and the micro sand sedimentation scraper thickener 5. The sludge storage hopper 9 is located directly below the outlet end of the filter press 13. An electric sludge discharge valve 15 is installed at the bottom of the sludge storage hopper 9.
[0034] The bottom of the micro-sand separator 10 is connected to the sludge tank 11 through a pipe, and the top of the micro-sand separator 10 is connected to the mixing chamber 4 through a pipe. The sludge separated by the micro-sand separator 10 enters the sludge tank 11 directly, and the micro-sand separated by the micro-sand separator 10 is returned to the mixing chamber 4 and reused.
[0035] The inlet end of the sludge filter press 12 is connected to the inside of the sludge tank 11 through a pipe, and the outlet end of the sludge filter press 12 is connected to the inlet end of the filter press 13 through a pipe. The sludge in the sludge tank 11 is pumped into the filter press 13 by the sludge filter press 12, thereby realizing the sludge filtration.
[0036] The bottom of the filter press 13 is provided with a receiving trough 23, and the receiving trough 23 is provided with a sludge discharge pipe 24. The sludge discharge pipe 24 passes through the first skid 1 and the second skid 2 and extends into the sludge storage hopper 9. The receiving trough 23 can catch the sludge after pressing and the sludge can fall into the sludge storage hopper 9 through the sludge discharge pipe 24.
[0037] It should be noted that the first skid 1 is equipped with a raw water inlet at the first mixing chamber 4, and a mud discharge pipe opening is opened at the bottom of the first skid 1 to facilitate the installation of the mud discharge pipe, which is connected to the bottom of the mud storage hopper 9.
[0038] Installation method and operating principle: First, pry bar 1 is lifted and supported on pry bar 2, and then secured with corner brackets 3 and bolts and nuts. Of course, pry bar 3 can be installed on top of pry bar 2. Figure 6As shown. Then, the mixing chamber 4, the micro-sand sedimentation scraper thickener 5, the coagulation dosing machine 6, the coagulation aid dosing machine 7 and the sludge discharge pump 8 are installed in the first skid 1. The sludge storage hopper 9 is installed at the top of the first skid 1. Then, the micro-sand separator 10, the sludge tank 11, the sludge filter press pump 12 and the filter press 13 are installed in the second skid 2. The coagulation dosing machine 6 and the coagulation aid dosing machine 7 are connected to the mixing chamber 4 via liquid pumps and pipelines, respectively. Adjacent mixing chambers 4 and micro-sand sedimentation scraper sludge thickener 5 are interconnected with adjacent mixing chambers 4 via through holes 16. The bottom of the micro-sand sedimentation scraper sludge thickener 5 is connected to the inlet end of the micro-sand separator 10 via a pipeline and a sludge discharge pump 8. The top of the micro-sand separator 10 is reconnected to the mixing chamber 4 via a pipeline. The sludge outlet at the bottom of the micro-sand separator 10 is connected to the sludge tank 11 via a pipeline. The sludge filter press pump 12 is installed on the upper surface of the sludge tank 11 and connected to the inside of the sludge tank 11 via a pipeline. The outlet end of the sludge filter press pump 12 is connected to the filter press 13 via a pipeline. The receiving trough 23 is installed at the bottom of the filter press 13. The sludge discharge pipe 24 passes through the first skid 1 and the second skid 2 and extends into the sludge storage hopper 9, thus completing the installation. In operation, raw water enters the first mixing chamber 4. The chemicals inside the coagulation dosing machine 6 and the coagulation aid dosing machine 7 are introduced into the mixing chamber 4 through a liquid pump. The chemicals are stirred by the agitator 17, causing them to react with the raw water and generate flocculent material. Then, the sludge enters the micro-sand sedimentation and sludge thickening machine 5. The agitator 19 drives the scraper 20 to rotate, causing the sludge to enter the bottom of the micro-sand sedimentation and sludge thickening machine 5. The sludge is then introduced into the micro-sand separator 10 through the sludge discharge pump 8. The micro-sand separator 10 separates the micro-sand, allowing it to re-enter the mixing chamber 4 from the top. The sludge enters the sludge tank 11 through a pipe, and is then pumped into the filter press 13 by the sludge filter press pump 12. The filter press 13 squeezes out the water from the sludge and discharges it through the drainage pipe. The sludge falls into the receiving tank 23 and finally into the sludge storage hopper 9. This utility model has a reasonable structure. It achieves rapid transportation and deployment by adopting a modular design based on standard containers. It supports two layout modes: flat and stacked. When stacked, it is fixed with special corner brackets 3, which can save more than 50% of the land used for the entire facility. The bottom of the second skid 2 and above the mixing chamber 4 and the micro-sand sedimentation scraper thickener 5 are equipped with a liftable cover plate 14, which solves the maintenance and operation problems when stacked.
[0039] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.
[0040] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A stackable skid-mounted microsand sedimentation system, characterized in that: It includes a pry bar (1) and a pry bar (2); corner pieces (3) are provided at the bottom and top of the pry bar (1) and the pry bar (2); the pry bar (2) is located at the top of the pry bar (1); the four corners of the top of the pry bar (1) are fastened to the four corners of the bottom of the pry bar (2) by the corner pieces (3) and bolts and nuts. The skid (1) is equipped with several mixing chambers (4), a micro-sand sedimentation scraper thickener (5), a coagulation dosing machine (6), a coagulation aid dosing machine (7) and a sludge discharge pump (8). The top of the skid (1) is equipped with a sludge storage hopper (9). The two skids (2) are equipped with a micro-sand separator (10), a sludge tank (11), a sludge filter press pump (12) and a filter press (13). A liftable cover plate (14) is provided at the bottom of the two skids (2) and above the mixing chamber (4) and the micro-sand sedimentation scraper thickener (5). The sludge storage hopper (9) is located directly below the outlet end of the filter press (13). An electric sludge discharge valve (15) is provided at the bottom of the sludge storage hopper (9).
2. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The mixing chambers (4) are adjacent to each other and connected to each other through through holes (16). The micro-sand sedimentation scraper thickener (5) is connected to the adjacent mixing chambers (4) through through holes (16). The mixing chambers (4) are equipped with stirring paddles (17). The stirring paddles (17) are connected to motors (18) through a main shaft. The motors (18) are located at the top of one skid (1) and inside the second skid (2).
3. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The micro-sand sedimentation scraper thickener (5) is equipped with a stirrer (19), a scraper (20), an inclined plate (21) and an overflow trough (22). The bottom of the micro-sand sedimentation scraper thickener (5) is connected to the input end of the sludge discharge pump (8) through a pipe. The output end of the sludge discharge pump (8) is connected to the inlet end of the micro-sand separator (10) through a pipe.
4. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The coagulation dosing machine (6) and the coagulation aid dosing machine (7) are connected to the mixing chamber (4) via liquid pumps.
5. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The bottom of the micro-sand separator (10) is connected to the sludge tank (11) through a pipe, and the top of the micro-sand separator (10) is connected to the mixing chamber (4) through a pipe.
6. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The inlet end of the sludge filter press (12) is connected to the inside of the sludge tank (11) through a pipe, and the outlet end of the sludge filter press (12) is connected to the inlet end of the filter press (13) through a pipe.
7. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: The filter press (13) is provided with a receiving trough (23) at the bottom, and the receiving trough (23) is provided with a mud discharge pipe (24). The mud discharge pipe (24) passes through a first skid (1) and a second skid (2) and extends into the mud storage hopper (9).
8. The stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: One side of the first pry bar (1) and the second pry bar (2) is equipped with a fixed ladder (25) via a latch.
9. A stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: Both the first skid (1) and the second skid (2) are equipped with an electrical control cabinet (26).
10. A stackable skid-mounted microsand sedimentation system according to claim 1, characterized in that: Both the first pry bar (1) and the second pry bar (2) are provided with small doors (27) on their sides.