Multi-stage cyclone desanding device
By designing a multi-stage cyclone sand removal device, which utilizes heated hydrolysis and multi-stage cyclone separation, the problems of complex structure, low sand removal efficiency, clogging, and wastewater splashing of existing devices are solved, achieving a highly efficient and environmentally friendly sand-water separation effect.
Patent Information
- Application Number
- CN202520356358.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing sand removal devices have complex structures and poor sand removal effects, especially for small-diameter sand, which is prone to clumping and clogging, making cleaning difficult and causing secondary environmental pollution due to wastewater splashing.
The multi-stage hydrocyclone sand removal device consists of a pre-hydrocyclone sand remover, a mid-hydrocyclone sand remover, a sand storage hopper, a heating buffer tank, a post-hydrocyclone sand remover, a sand lifting screw conveyor, and pumps, valves, and pipelines. It achieves sand-water separation through heating hydrolysis and multi-stage hydrocyclone separation, avoiding wastewater splashing.
It achieves efficient sand-water separation, avoids equipment blockage and sewage splashing, improves sand removal efficiency, and ensures an environmentally friendly cleaning process.
Smart Images
Figure CN223892492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a treatment of kitchen waste, kitchen waste leachate and sewage, specifically a multi-stage cyclone sand removal device. Background Technology
[0002] Current sand removal devices have complex structures and poor sand removal effects, especially for small-diameter sand, which is difficult to remove and tends to clump together. This not only results in low sand removal efficiency but also makes them prone to clogging during operation, making cleaning difficult and causing wastewater to splash out and cause secondary pollution to the environment. Summary of the Invention
[0003] The technical problem this utility model aims to solve is to provide a sand-water separation device with a novel structure, specifically a multi-stage cyclone sand separator, addressing the issues of current sand separators such as easy agglomeration, low sand removal efficiency, and frequent clogging during operation. To solve these problems, this utility model adopts the following technical solution: it consists of four parts: a pre-cyclone sand separator, a mid-cyclone sand separator and a sand storage hopper, a heating buffer tank and a post-cyclone sand separator, a sand-lifting screw conveyor, and pumps, valves, and pipelines. A feed pump is located on the left side of the heating buffer tank, and the outlet of the feed pump is connected to the middle and lower parts of the heating buffer tank via pipes and valves. A post-cyclone sand separator is located at the top of the heating buffer tank, and a steam heating pipe is located in the middle of the inner cavity of the heating buffer tank. The bottom of the heating buffer tank is connected to the inlet flange of a circulating pump via pipes and valves, and the outlet of the circulating pump is connected to the side inlet flange of the pre-cyclone sand separator via pipes and valves. The upper flange of the pre-cyclone sand separator is connected to the side flange of the mid-cyclone sand separator. The flanges are connected by pipes. The upper flange of the central cyclone sand separator is connected to the side flange of the rear cyclone sand separator by pipes. The upper flange of the rear cyclone sand separator is connected to the outlet pipe flange by pipes. The bottom flange of the rear cyclone sand separator is connected to the top flange of the heating buffer tank by pipes. The bottom flange of the central cyclone sand separator is connected to the top of the sand storage hopper by pipes and a knife gate valve. The bottom flange of the front cyclone sand separator is connected to the side of the sand storage hopper by pipes. An exhaust pipe is provided at the top of the bottom of the sand storage hopper. The bottom flange of the sand storage hopper is connected to the bottom storage hopper of the sand lifting screw conveyor by pipes and a knife gate valve. The bottom storage hopper of the sand lifting screw conveyor is equipped with spiral blades at the bottom and a sand discharge port at the top.
[0004] The tilt angle of the spiral blade is 15 to 25 degrees.
[0005] The advantages of this utility model are: a fully enclosed structure that integrates heating hydrolysis and cyclone sand removal, preventing sewage from splashing or flowing out, and achieving high sand-water separation efficiency. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the structure of the multi-stage cyclone sand removal device of this utility model.
[0007] Symbols in the diagram: 1. Feed pump; 2. Heating buffer tank; 3. Post-hydrocyclone; 4. Steam heating pipe; 5. Pre-hydrocyclone; 6. Mid-hydrocyclone; 7. Pre-hydrocyclone; 8. Sand lifting screw conveyor; 9. Sand discharge port; 10. Water outlet pipe. Detailed Implementation
[0008] The present invention will now be described in detail using the preferred embodiments.
[0009] like Figure 1 The multi-stage hydrocyclone sand removal device shown consists of four parts: a pre-hydrocyclone sand remover, a mid-hydrocyclone sand remover and a sand storage hopper; a heating buffer tank and a post-hydrocyclone sand remover; a sand lifting screw conveyor; and pumps, valves, and pipelines. A feed pump is located on the left side of the heating buffer tank. The outlet of the feed pump is connected to the middle and lower parts of the heating buffer tank via pipes and valves. A post-hydrocyclone sand remover is located at the top of the heating buffer tank. A steam heating pipe is located in the middle of the inner cavity of the heating buffer tank. The bottom of the heating buffer tank is connected to the inlet flange of the circulating pump via pipes and valves. The outlet of the circulating pump is connected to the side inlet flange of the pre-hydrocyclone sand remover via pipes and valves. The upper flange of the pre-hydrocyclone sand remover is connected to the side flange of the mid-hydrocyclone sand remover via pipes. The mid-hydrocyclone sand remover... The upper flange of the flow desander is connected to the side flange of the post-flow desander via a pipe. The upper flange of the post-flow desander is connected to the outlet pipe flange via a pipe. The bottom flange of the post-flow desander is connected to the top flange of the heating buffer tank via a pipe. The bottom flange of the mid-flow desander is connected to the top of the sand storage hopper via a pipe and a knife gate valve. The bottom flange of the pre-flow desander is connected to the side of the sand storage hopper via a pipe. An exhaust pipe is installed at the top bottom of the sand storage hopper. The bottom flange of the sand storage hopper is connected to the bottom storage hopper of the sand lifting screw conveyor via a pipe and a knife gate valve. Spiral blades are installed at the bottom of the bottom storage hopper of the sand lifting screw conveyor. A sand discharge port is installed at the top of the sand lifting screw conveyor. The inclination angle of the spiral blades is 15 to 25 degrees.
[0010] The feed pump lifts oily and sandy wastewater into a heated buffer tank. After steam heating, hydrolysis, and demulsification, the circulating pump lifts the sand-water mixture at the bottom of the wet heat buffer tank to a pre-hydrocyclone separator for first-stage sand-water separation. The sand after the first-stage sand-water separation is discharged from the bottom of the pre-hydrocyclone separator into a sand storage hopper. The water after the first-stage sand-water separation is discharged from the top of the pre-hydrocyclone separator to a central hydrocyclone separator for second-stage sand-water separation. The sand after the second-stage sand-water separation is discharged from the bottom of the central hydrocyclone separator into a sand storage hopper. The water after the second-stage sand-water separation is discharged from the top of the central hydrocyclone separator to a post-hydrocyclone separator for third-stage sand-water separation. The sand after the third-stage sand-water separation is discharged from the bottom of the post-hydrocyclone separator into a wet heat buffer tank. The water after the third-stage sand-water separation is discharged from the top of the post-hydrocyclone separator. The sand and gravel in the sand storage hopper are periodically discharged to the bottom storage hopper of the sand lifting screw conveyor and then lifted and discharged by the sand lifting screw conveyor.
[0011] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A multi-stage cyclone sand removal device, characterized in that: It consists of four parts: a pre-cyclone sand separator, a central cyclone sand separator and a sand storage hopper, a heating buffer tank and a post-cyclone sand separator, a sand lifting screw conveyor, and pumps, valves and pipelines. A feed pump is located on the left side of the heating buffer tank, and the outlet of the feed pump is connected to the middle and lower parts of the heating buffer tank via pipes and valves. A post-cyclone sand separator is located at the top of the heating buffer tank, and a steam heating pipe is located in the middle of the inner cavity of the heating buffer tank. The bottom of the heating buffer tank is connected to the inlet flange of the circulating pump via pipes and valves, and the outlet of the circulating pump is connected to the side inlet flange of the pre-cyclone sand separator via pipes and valves. The upper flange of the pre-cyclone sand separator is connected to the side flange of the central cyclone sand separator via pipes. The upper flange of the hydrocyclone sand separator is connected to the side flange of the post-hydrocyclone sand separator via a pipe. The upper flange of the post-hydrocyclone sand separator is connected to the outlet pipe flange via a pipe. The bottom flange of the post-hydrocyclone sand separator is connected to the top flange of the heating buffer tank via a pipe. The bottom flange of the intermediate hydrocyclone sand separator is connected to the top of the sand storage hopper via a pipe and a knife gate valve. The bottom flange of the pre-hydrocyclone sand separator is connected to the side of the sand storage hopper via a pipe. An exhaust pipe is provided at the top of the bottom of the sand storage hopper. The bottom flange of the sand storage hopper is connected to the bottom storage hopper of the sand lifting screw conveyor via a pipe and a knife gate valve. Spiral blades are provided at the bottom of the bottom storage hopper of the sand lifting screw conveyor, and a sand discharge port is provided at the top of the sand lifting screw conveyor.
2. The multi-stage cyclone sand removal device according to claim 1, characterized in that: The tilt angle of the spiral blade is 15 to 25 degrees.