Recovery system for gravel in waste water

Abstract

The utility model discloses a recovery system for sand in waste water, which comprises a sand recovery device and a waste water treatment device, an outlet of the sand recovery device is connected with an inlet of the waste water treatment device through a waste water pipe, a recovery port is arranged on the bottom wall of the waste water pipe, the recovery system for the sand in the waste water further comprises a recovery pipe and a sand basin, the recycling opening is connected with the sand basin through a recycling pipe, a valve is arranged on the recycling pipe, and a baffle is arranged at the position, on the downstream side of the recycling opening, of the inner bottom of the waste water pipe. The system for recovering the sand in the wastewater has the advantages of improving the recovery effect and the productivity of finished sand and reducing the workload of a wastewater treatment device.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, specifically to a sand and gravel recovery system in wastewater. Background Technology

[0002] Existing wastewater sand and gravel recovery systems typically include a sand and gravel recovery unit and a wastewater treatment unit. The outlet of the sand and gravel recovery unit is connected to the inlet of the wastewater treatment unit via a wastewater pipe. Wastewater from sand and gravel processing passes through a hydrocyclone in the sand and gravel recovery unit to recover fine sand and stone powder, before flowing into the wastewater treatment unit through the wastewater pipe. However, the wastewater after recovery by the sand and gravel recovery unit still contains some fine sand and coarse stone powder particles that cannot be completely recovered, resulting in poor recovery efficiency, low finished sand production capacity, and an increased workload for the wastewater treatment unit. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a wastewater sand and gravel recovery system that improves the recovery effect and finished sand production capacity and reduces the workload of wastewater treatment equipment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A wastewater sand and gravel recovery system includes a sand and gravel recovery device and a wastewater treatment device. The outlet of the sand and gravel recovery device is connected to the inlet of the wastewater treatment device through a wastewater pipe. A recovery port is provided on the bottom wall of the wastewater pipe. The wastewater sand and gravel recovery system also includes a recovery pipe and a sedimentation tank. The recovery port is connected to the sedimentation tank through the recovery pipe. A valve is provided on the recovery pipe. A baffle is provided on the inner bottom of the wastewater pipe downstream of the recovery port.

[0006] As a further improvement to the above technical solution:

[0007] The sedimentation tank is located below the wastewater pipe.

[0008] One end of the recovery pipe is connected to the recovery port, and the other end extends above the sedimentation tank.

[0009] The recovery pipe includes a vertical section, an arc-shaped section, and a horizontal section. The top of the vertical section is connected to the recovery port, one end of the horizontal section is connected to the bottom of the vertical section through the arc-shaped section, and the other end extends to the top of the sedimentation tank.

[0010] The wastewater pipe is a round pipe.

[0011] The baffle is semi-circular.

[0012] The wastewater pipe is equipped with a detachable pipe section, and the recovery port and baffle are located on the detachable pipe section.

[0013] The detachable pipe section has one end, and both ends of the detachable pipe section are connected to the wastewater pipe through movable joints.

[0014] The detachable pipe section has at least two sections, and each detachable pipe section is detachably connected in sequence. The detachable pipe sections at both ends are detachably connected to the wastewater pipe. Each detachable pipe section is provided with a recycling port and a baffle.

[0015] The detachable pipe sections at both ends are connected to the wastewater pipe via movable joints, and adjacent detachable pipe sections are connected to each other via movable joints.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model discloses a wastewater sand and gravel recovery system. After the sand and gravel are recovered by the sand and gravel recovery device, the wastewater flows through the wastewater pipe. During this process, the coarse and heavy particles in the wastewater are blocked by the baffle and sink. After the valve is opened, the coarse and heavy particles enter the recovery pipe through the recovery port and then flow to the sedimentation tank for secondary recovery. This improves the recovery effect and the production capacity of finished sand. In addition, it reduces the amount of sand and gravel entering the wastewater treatment device and reduces the workload of the wastewater treatment device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the wastewater sand and gravel recovery system of this utility model.

[0019] Figure 2 This is a schematic diagram of the wastewater pipe and cross-sectional structure of the wastewater sand and gravel recovery system of this utility model.

[0020] Figure 3 This is a schematic diagram of the second embodiment of the wastewater sand and gravel recovery system of this utility model.

[0021] Figure 4 yes Figure 3 A magnified structural diagram of point A in the middle.

[0022] Figure 5 This is a schematic diagram of the third embodiment of the wastewater sand and gravel recovery system of this utility model.

[0023] The labels in the diagram represent:

[0024] 1. Sand and gravel recovery device; 2. Wastewater treatment device; 3. Wastewater pipe; 31. Detachable pipe section; 4. Recovery port; 5. Recovery pipe; 51. Vertical section; 52. Arc-shaped section; 53. Horizontal section; 6. Sedimentation tank; 7. Baffle; 8. Valve; 9. Movable joint. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Figure 1 and Figure 2 This invention illustrates a first embodiment of the wastewater sand and gravel recovery system. The wastewater sand and gravel recovery system of this embodiment includes a sand and gravel recovery device 1 and a wastewater treatment device 2. The outlet of the sand and gravel recovery device 1 is connected to the inlet of the wastewater treatment device 2 through a wastewater pipe 3. A recovery port 4 is provided on the bottom wall of the wastewater pipe 3. The wastewater sand and gravel recovery system also includes a recovery pipe 5 and a sedimentation tank 6. The recovery port 4 is connected to the sedimentation tank 6 through the recovery pipe 5. A valve 8 is provided on the recovery pipe 5. A baffle 7 is provided on the inner bottom of the wastewater pipe 3 downstream of the recovery port 4.

[0031] In this wastewater sand and gravel recovery system, after the sand and gravel recovery device 1 recovers the sand and gravel, the wastewater flows through the wastewater pipe 3. During this process, the coarse and heavy particles in the wastewater are blocked by the baffle 7 and sink. After the valve 8 is opened, the coarse and heavy particles enter the recovery pipe 5 through the recovery port 4, and then flow to the sedimentation tank 6 for secondary recovery. This improves the recovery effect and the production capacity of finished sand, and reduces the amount of sand and gravel entering the wastewater treatment device 2, thus reducing the workload of the wastewater treatment device 2.

[0032] Adjust the valve opening according to the size of the sand and gravel in the wastewater. The clearer water and finer particles in the upper part can overflow above the baffle 7 and enter the wastewater treatment device 2. An overflow port is formed between the upper side of the baffle 7 and the top wall of the wastewater pipe 3.

[0033] Furthermore, in this embodiment, the sedimentation tank 6 is located below the wastewater pipe 3. When the valve 8 is opened, the sand and gravel particles settled above the recovery port 4 can flow through the recovery pipe 5 to the sedimentation tank 6 under the action of gravity.

[0034] Furthermore, in this embodiment, one end of the recovery pipe 5 is connected to the recovery port 4, and the other end extends above the sedimentation tank 6. Preferably, the sedimentation tank 6 is located on the ground.

[0035] Furthermore, in this embodiment, the recovery pipe 5 includes a vertical section 51, an arc-shaped section 52, and a horizontal section 53. The top end of the vertical section 51 is connected to the recovery port 4, one end of the horizontal section 53 is connected to the bottom end of the vertical section 51 through the arc-shaped section 52, and the other end extends to the top of the sedimentation tank 6.

[0036] Furthermore, in this embodiment, the wastewater pipe 3 is a circular pipe.

[0037] Furthermore, in this embodiment, the baffle 7 is semi-circular.

[0038] The distance between the recovery port 4 and the baffle 7 is 15-25cm, preferably 20cm. The diameter of the recovery port 4 is preferably 10cm.

[0039] Example 2:

[0040] Figure 3 and Figure 4 This paper illustrates a second embodiment of the wastewater sand and gravel recovery system of this utility model. The structure in this embodiment is basically the same as that in the first embodiment, except that: a detachable pipe section 31 is provided on the wastewater pipe 3, and the recovery port 4 and baffle 7 are provided on the detachable pipe section 31. The detachable pipe section 31 is detachably connected to the original part of the wastewater pipe 3, which is convenient for replacement, and also facilitates the processing of installing the baffle 7 and the recovery port 4 inside the detachable pipe section 31.

[0041] Furthermore, in this embodiment, the detachable pipe section 31 is provided with a section, and both ends of the detachable pipe section 31 are connected to the wastewater pipe through the movable joint 9.

[0042] Example 3:

[0043] Figure 5This paper presents a third embodiment of the wastewater sand and gravel recovery system of this utility model. The structure of this embodiment is basically the same as that of the first embodiment, except that: the wastewater pipe 3 is provided with a detachable pipe section 31, which has at least two sections. Each detachable pipe section 31 is detachably connected in sequence, and the detachable pipe sections 31 at both ends are detachably connected to the wastewater pipe 3. Each detachable pipe section 31 is provided with a recovery port 4 and a baffle 7. The detachable pipe section 31 has at least two sections, and each detachable pipe section 31 is provided with a recovery port 4 and a baffle 7. In each detachable pipe section 31, the baffle 7 is located downstream of the recovery port 4. In this way, when the wastewater after the sand and gravel recovery device 1 recovers sand and gravel passes through the wastewater pipe 3, the sand and gravel particles in the wastewater are blocked by multiple baffles 7 one after another and sink, forming a multi-stage blocking and multi-stage recovery, which further improves the recovery effect and the production capacity of finished sand.

[0044] Furthermore, in this embodiment, the detachable pipe sections 31 at both ends are connected to the wastewater pipe 3 via movable joints 9, and adjacent detachable pipe sections 31 are connected to each other via movable joints 9.

[0045] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A wastewater sand and gravel recovery system, comprising a sand and gravel recovery device (1) and a wastewater treatment device (2), wherein the outlet of the sand and gravel recovery device (1) is connected to the inlet of the wastewater treatment device (2) via a wastewater pipe (3), characterized in that: The wastewater pipe (3) has a recovery port (4) on its bottom wall. The wastewater sand and gravel recovery system also includes a recovery pipe (5) and a sedimentation tank (6). The recovery port (4) is connected to the sedimentation tank (6) through the recovery pipe (5). The recovery pipe (5) is equipped with a valve (8). The bottom of the wastewater pipe (3) is equipped with a baffle (7) downstream of the recovery port (4).

2. The wastewater sand and gravel recovery system according to claim 1, characterized in that: The sedimentation tank (6) is located below the wastewater pipe (3).

3. The wastewater sand and gravel recovery system according to claim 2, characterized in that: One end of the recovery pipe (5) is connected to the recovery port (4), and the other end extends above the sedimentation tank (6).

4. The wastewater sand and gravel recovery system according to claim 3, characterized in that: The recovery pipe (5) includes a vertical section (51), an arc section (52) and a horizontal section (53). The top end of the vertical section (51) is connected to the recovery port (4). One end of the horizontal section (53) is connected to the bottom end of the vertical section (51) through the arc section (52), and the other end extends to the top of the sedimentation tank (6).

5. The wastewater sand and gravel recovery system according to claim 1, characterized in that: The wastewater pipe (3) is a round pipe.

6. The wastewater sand and gravel recovery system according to claim 4, characterized in that: The baffle (7) is semi-circular.

7. The wastewater sand and gravel recovery system according to any one of claims 1 to 6, characterized in that: The wastewater pipe (3) is provided with a detachable pipe section (31), and the recovery port (4) and baffle (7) are provided on the detachable pipe section (31).

8. The wastewater sand and gravel recovery system according to claim 7, characterized in that: The detachable pipe section (31) has one end, and both ends of the detachable pipe section (31) are connected to the wastewater pipe (3) through movable joints (9).

9. The wastewater sand and gravel recovery system according to claim 7, characterized in that: The detachable pipe section (31) is provided with at least two sections, and each detachable pipe section (31) is detachably connected in sequence. The detachable pipe sections (31) at both ends are detachably connected to the wastewater pipe (3). Each detachable pipe section (31) is provided with a recycling port (4) and a baffle (7).

10. The wastewater sand and gravel recovery system according to claim 9, characterized in that: The detachable pipe sections (31) at both ends are connected to the wastewater pipe (3) via movable joints (9), and adjacent detachable pipe sections (31) are connected via movable joints (9).

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