A solid-liquid separation device for vanadium production wastewater

Abstract

The utility model provides a kind of sewage solid-liquid separation device for making vanadium, it relates to vanadium ore processing technical field, including settling cylinder and the lifting pipe located in settling cylinder, lifting pipe is located at the central position of settling cylinder, several flow baffles located in settling cylinder are fixedly arranged outside lifting pipe, flow baffle is net plate structure, the bottom of settling cylinder is provided with a connecting pipe, lifting pipe is inserted in connecting pipe, the side wall of connecting pipe has the inlet hole of communicating settling cylinder inner chamber, the lower end of connecting pipe is connected with water inlet pipe, there is gap between the outer edge of flow baffle and the inner wall of settling cylinder, flow baffle is conical and outside lower than inside;The upper end of lifting pipe is provided with mud outlet pipe, a lifting screw is rotatably connected in lifting pipe, the spiral blade on lifting screw is mesh structure, the position of mud outlet pipe is above the liquid level of settling cylinder;The upper end of settling cylinder is provided with overflow water outlet groove.The utility model has the advantages of high efficiency etc.

Description

Technical Field

[0001] This utility model relates to the field of vanadium ore processing technology, and in particular to a solid-liquid separation device for vanadium production wastewater. Background Technology

[0002] In the production of vanadium pentoxide and vanadium-nitrogen alloys, dust particles in the production wastewater undergo solid-liquid separation through sedimentation. Static sedimentation requires a large amount of wastewater storage to maintain the solid-liquid separation, which occupies a large area and is costly. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by proposing a wastewater treatment device that improves solid-liquid separation efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a solid-liquid separation device for vanadium production wastewater, characterized in that it includes a settling cylinder and a riser pipe located inside the settling cylinder. The riser pipe is located at the center of the settling cylinder. Several baffle plates are fixedly installed outside the riser pipe inside the settling cylinder. The baffle plates have a mesh structure. A connecting pipe is provided at the bottom of the settling cylinder. The riser pipe is inserted into the connecting pipe. The side wall of the connecting pipe has an inlet hole communicating with the inner cavity of the settling cylinder. The lower end of the connecting pipe is connected to a water inlet pipe. There is a gap between the outer edge of the baffle plate and the inner wall of the settling cylinder. The baffle plate is conical with the outer side lower than the inner side. A sludge outlet pipe is provided at the upper end of the riser pipe. A lifting screw is rotatably connected inside the riser pipe. The spiral blades on the lifting screw have a mesh structure. The position of the sludge outlet pipe is above the liquid surface of the settling cylinder. An overflow outlet trough is provided at the upper end of the settling cylinder.

[0005] Furthermore, the lower part of the settling cylinder is a cone-shaped cylinder with the larger diameter end facing upwards.

[0006] Furthermore, a protective cover is fixedly installed at the upper end of the connecting pipe, and there is a gap between the outer edge of the protective cover and the inner wall of the settling cylinder, and the feed hole is located below the protective cover.

[0007] The baffles form a relatively enclosed area, allowing sediment to settle only through the gap between the outer edge of the baffle and the inner wall of the settling tank. Multiple baffles limit the disturbance of the solid-liquid mixture within the settling tank, preventing significant wastewater flow during screw rotation. The protective cover further reduces liquid fluctuations near the inlet, maintaining a relatively static wastewater environment. Furthermore, the screw's mesh-like blades provide relatively weak liquid extraction, while solid powders are gradually lifted and discharged. The slow rotation of the screw facilitates the lifting and discharge of solid waste. Compared to a completely static method, this allows for preliminary solid-liquid separation. Wastewater is introduced through the inlet pipe, ensuring low solid content near the settling tank surface, and then discharged through the overflow trough. After preliminary solid-liquid separation, the wastewater can be sent to a specialized wastewater treatment plant for further processing, reducing wastewater treatment costs for businesses. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a wastewater solid-liquid separation device.

[0009] Legend: 1. Settling cylinder; 2. Lifting pipe; 3. Baffle plate; 4. Connecting pipe; 5. Feed inlet; 6. Water inlet pipe; 7. Lifting screw; 8. Overflow outlet trough; 9. Protective cover. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0011] like Figure 1 As shown, the wastewater solid-liquid separation device includes a settling cylinder 1 and a riser pipe 2 located inside the settling cylinder 1. The riser pipe 2 is located at the center of the settling cylinder 1. Several baffle plates 3 are fixedly installed outside the riser pipe 2 inside the settling cylinder 1. The baffle plates 3 have a mesh structure. A connecting pipe 4 is provided at the bottom of the settling cylinder 1. The riser pipe 2 is inserted into the connecting pipe 4. The side wall of the connecting pipe 4 has an inlet hole 5 that connects to the inner cavity of the settling cylinder 1. The lower end of the connecting pipe 4 is connected to a water inlet pipe 6. There is a gap between the outer edge of the baffle plate 3 and the inner wall of the settling cylinder 1. The baffle plate 3 is conical with the outer side lower than the inner side. A sludge outlet pipe is provided at the upper end of the riser pipe 2. A lifting screw 7 is rotatably connected inside the riser pipe 2. The spiral blades on the lifting screw 7 have a mesh structure. The position of the sludge outlet pipe is above the liquid surface of the settling cylinder 1. An overflow outlet trough 8 is provided at the upper end of the settling cylinder 1.

[0012] The lower part of the settling cylinder 1 is a cone-shaped cylinder with the large diameter end facing upwards. A protective cover 9 is fixedly installed at the upper end of the connecting pipe 4. There is a gap between the outer edge of the protective cover 9 and the inner wall of the settling cylinder 1. The feed hole 5 is located below the protective cover 9.

[0013] The baffles form a relatively enclosed area, allowing sediment to settle only through the gap between the outer edge of the baffle and the inner wall of the settling cylinder 1. Multiple baffles limit the disturbance of the solid-liquid mixture in the wastewater within the lifting cylinder, preventing significant flow of wastewater from the rotation of the lifting screw 7. The protective cover 9 further reduces liquid fluctuations near the inlet 5, maintaining a better static environment for the wastewater. Additionally, because the spiral blades of the lifting screw 7 have a mesh structure, its selective liquid extraction strength is relatively weak, while solid powders can be gradually lifted by the lifting screw 7 until discharged. The slow rotation of the lifting screw 7 achieves the lifting and discharge of solid waste. Compared to a completely static method, this allows for preliminary solid-liquid separation of the wastewater. Wastewater is fed into the settling cylinder 1 through the inlet pipe 6, ensuring a low solid content near the liquid surface. It is then discharged through the overflow trough 8. After preliminary solid-liquid separation, the wastewater can be sent to a specialized wastewater treatment plant for further treatment, reducing the company's wastewater treatment costs.

[0014] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A solid-liquid separation device for vanadium production wastewater, characterized in that, The device includes a settling cylinder (1) and a riser pipe (2) located inside the settling cylinder (1). The riser pipe (2) is located at the center of the settling cylinder (1). Several baffle plates (3) are fixedly installed outside the riser pipe (2) inside the settling cylinder (1). The baffle plates (3) are mesh plate structures. A connecting pipe (4) is provided at the bottom of the settling cylinder (1). The riser pipe (2) is inserted into the connecting pipe (4). The side wall of the connecting pipe (4) has a feed hole (5) that connects to the inner cavity of the settling cylinder (1). The lower end of the connecting pipe (4) is connected to the inlet pipe (6). There is a gap between the outer edge of the baffle plate (3) and the inner wall of the settling cylinder (1). The baffle plate (3) is conical with the outer side lower than the inner side. The upper end of the lifting pipe (2) is provided with a mud outlet pipe. A lifting screw (7) is rotatably connected inside the lifting pipe (2). The spiral blades on the lifting screw (7) are mesh structures. The mud outlet pipe is located above the liquid surface of the settling cylinder (1). An overflow outlet trough (8) is provided at the upper end of the settling cylinder (1).

2. The vanadium production wastewater solid-liquid separation device according to claim 1, characterized in that, The lower part of the settling cylinder (1) is a cone-shaped cylinder with the large diameter end facing upward.

3. A solid-liquid separation device for vanadium production wastewater according to claim 1 or 2, characterized in that, A protective cover (9) is fixedly installed at the upper end of the connecting pipe (4). There is a gap between the outer edge of the protective cover (9) and the inner wall of the settling cylinder (1). The feed hole (5) is located below the protective cover (9).

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