Chromium-containing wastewater purification system

Abstract

The chromium-containing wastewater purification system comprises a shell, a wastewater inlet is formed in the upper surface of the shell, hydraulic telescopic rods are fixedly connected to the front surface and the rear surface of the shell, a connecting plate is fixedly connected to the left ends of the hydraulic telescopic rods, sliding grooves are formed in the front surface and the rear surface of the shell, and upper sliding bins are connected to the front inner wall and the rear inner wall of the shell in a sliding mode; a lower sliding bin is slidably connected to the front inner wall and the rear inner wall of the shell, a filter plate is fixedly connected to the side inner wall of the shell, a feeding pipe is fixedly connected to the right surface of the shell, an impurity outlet is formed in the lower surface of the shell, a water outlet pipe is inlaid in the bottom of the shell, a valve is arranged on the side surface of the water outlet pipe, and a filter screen is fixedly connected to the lower bottom wall of the shell. And the purification efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a chromium-containing wastewater purification system. Background Technology

[0002] Chromium-containing wastewater contains hexavalent chromium and other harmful substances that pose potential hazards to the environment and human health, thus requiring purification. In a purification system, pretreatment is necessary first. Traditional wastewater purification systems use a single filtration or sedimentation method for pretreatment, which is inefficient and makes it difficult to clean the impurities after internal filtration, resulting in low wastewater treatment efficiency. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a chromium-containing wastewater purification system. Chromium-containing wastewater is introduced through a wastewater inlet, and preliminary filtration is performed in the upper sliding chamber using filter plates to trap large particulate impurities. The filtered wastewater flows into the lower sliding chamber, where an agent to accelerate sedimentation is added through the feed pipe, causing a chemical reaction and the formation of precipitates in the lower sliding chamber. The wastewater, after chemical reaction and sedimentation, undergoes final filtration through a filter screen, ensuring that even small particles are trapped, thus improving wastewater treatment efficiency. A hydraulic telescopic rod drives the upper and lower sliding chambers to slide inside the outer casing, pushing impurities on the filter plates and screens towards the impurity outlet on the left side of the casing for collection, reducing the workload of maintenance personnel and improving cleaning efficiency.

[0004] This utility model also provides a chromium-containing wastewater purification system, comprising: a shell, a wastewater inlet on the upper surface of the shell, hydraulic telescopic rods fixedly connected to the front and rear surfaces of the shell, a connecting plate fixedly connected to the left end of the hydraulic telescopic rods, sliding grooves on the front and rear surfaces of the shell, an upper sliding chamber slidably connected to the front and rear inner walls of the shell, a lower sliding chamber slidably connected to the front and rear inner walls of the shell, a filter plate fixedly connected to the side inner wall of the shell, a feed pipe fixedly connected to the right surface of the shell, an impurity outlet on the lower surface of the shell, a water outlet pipe embedded in the bottom of the shell, a valve on the side surface of the water outlet pipe, and a filter screen fixedly connected to the bottom wall of the shell. This device improves purification efficiency.

[0005] According to the chromium-containing wastewater purification system provided by this utility model, the connecting plate is fixedly connected to the front and rear surfaces of the upper sliding chamber and the lower sliding chamber, and the lower sliding chamber is located directly below the upper sliding chamber. The above device helps to ensure that the connecting plate drives the upper and lower sliding chambers to move.

[0006] According to the chromium-containing wastewater purification system provided by this utility model, the upper sliding chamber is located on the upper surface of the filter plate and directly below the wastewater inlet. The above device is beneficial for the loading chamber to move the impurities on the filter plate.

[0007] According to the present invention, a chromium-containing wastewater purification system is provided, wherein the feed pipe is connected to the outer shell and is located between the filter plate and the lower sliding chamber. The above device facilitates the addition of reagents to the filtered wastewater.

[0008] According to the present invention, a chromium-containing wastewater purification system is provided, wherein the impurity outlet is located on the left side of the upper sliding chamber and the lower sliding chamber and is connected to the outer shell. The above device facilitates the discharge of impurities outside the device.

[0009] According to the present invention, a chromium-containing wastewater purification system is provided, wherein the filter screen is located at the connection between the outlet pipe and the bottom wall of the outer shell, and the lower sliding chamber is located above the filter screen. The above device is beneficial for intercepting fine sediments.

[0010] According to the present invention, a chromium-containing wastewater purification system is provided, wherein the chute extends through the outer shell and the connecting plate is located inside the chute. The above device helps to limit the movement trajectory of the connecting plate.

[0011] According to the chromium-containing wastewater purification system provided by this utility model, a support column is fixedly connected to the lower surface of the outer shell. The above device helps to ensure the overall stability of the device.

[0012] Compared with existing technologies, this chromium-containing wastewater purification system uses a hydraulic telescopic rod to drive the upper and lower sliding chambers to slide inside the outer shell, thereby pushing impurities on the filter plates and screens to the impurity outlet on the left side of the outer shell for collection. This helps reduce the workload of maintenance personnel and improves cleaning efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a three-dimensional structural diagram of the chromium-containing wastewater purification system of this utility model;

[0015] Figure 2 This is a bottom view of the chromium-containing wastewater purification system of this utility model;

[0016] Figure 3 This is a diagram showing the internal structure of the chromium-containing wastewater purification system of this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the chromium-containing wastewater purification system of this utility model.

[0018] Legend:

[0019] 1. Outer shell; 2. Wastewater inlet; 3. Hydraulic telescopic rod; 4. Connecting plate; 5. Slide groove; 6. Support column; 7. Impurity outlet; 8. Filter plate; 9. Upper sliding chamber; 10. Feed pipe; 11. Lower sliding chamber; 12. Filter screen; 13. Water outlet pipe; 14. Valve. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a chromium-containing wastewater purification system, comprising: a housing 1, a wastewater inlet 2 on the upper surface of the housing 1, an upper sliding chamber 9 slidably connected to the front and rear inner walls of the housing 1, a lower sliding chamber 11 slidably connected to the front and rear inner walls of the housing 1, a connecting plate 4 fixedly connected to the front and rear surfaces of the upper sliding chamber 9 and the lower sliding chamber 11, with the lower sliding chamber 11 located directly below the upper sliding chamber 9, and a filter plate 8 fixedly connected to the inner side wall of the housing 1, with the upper sliding chamber 9 located below the filter plate 8. The upper surface of the outer shell 1 is connected to the upper sliding chamber 9, which is located directly below the wastewater inlet 2. The right surface of the outer shell 1 is fixedly connected to the feed pipe 10, which is connected to the outer shell 1 and located between the filter plate 8 and the lower sliding chamber 11. The bottom of the outer shell 1 is inlaid with the water outlet pipe 13, and the side surface of the water outlet pipe 13 is provided with a valve 14. The bottom wall of the outer shell 1 is fixedly connected to the filter screen 12, which is located at the connection between the water outlet pipe 13 and the bottom wall of the outer shell 1, and the lower sliding chamber 11 is located above the filter screen 12.

[0022] Specifically, the outer shell 1, serving as the container for the entire purification process, has a wastewater inlet 2 at its upper part to introduce the chromium-containing wastewater to be treated. Sliding connection mechanisms are designed on both the front and rear walls of the outer shell 1 to install the upper sliding chamber 9 and the lower sliding chamber 11. These two sliding chambers can slide inside the outer shell 1. The chromium-containing wastewater to be treated first passes through the interior of the upper sliding chamber 9. Since the upper sliding chamber 9 is located above the filter plate 8, the chromium-containing wastewater to be treated is filtered by the filter holes of the filter plate 8, removing impurities from the wastewater and retaining them on the filter plate 8. The filtered wastewater then flows to the bottom wall of the outer shell 1 and is located inside the lower sliding chamber 11. Simultaneously, an agent to accelerate sedimentation is added to the interior of the outer shell 1 through the feed pipe 10, causing the filtered wastewater to undergo a chemical reaction and precipitate inside the lower sliding chamber 11. Since a filter screen 12 is installed at the connection between the outlet pipe 13 and the outer shell 1, the precipitated wastewater is discharged through the outlet pipe 13 for subsequent treatment.

[0023] Reference Figure 1 , Figure 3 and Figure 4 Hydraulic telescopic rods 3 are fixedly connected to the front and rear surfaces of the outer shell 1. A connecting plate 4 is fixedly connected to the left end of the hydraulic telescopic rod 3. Slide grooves 5 are provided on the front and rear surfaces of the outer shell 1. The slide grooves 5 pass through the outer shell 1. The connecting plate 4 is located inside the slide grooves 5. An impurity outlet 7 is provided on the lower surface of the outer shell 1. The impurity outlet 7 is located on the left side of the upper sliding chamber 9 and the lower sliding chamber 11 and is connected to the outer shell 1. A support column 6 is fixedly connected to the lower surface of the outer shell 1.

[0024] Specifically, due to the blocking effect of the filter plate 8 and the filter screen 12, impurities remain inside the upper sliding chamber 9 and the lower sliding chamber 11. The hydraulic telescopic rod 3 drives the connecting plate 4 to move inside the sliding groove 5. Because the connecting plate is connected to the upper sliding chamber 9 and the lower sliding chamber 11, it will drive the upper sliding chamber 9 and the lower sliding chamber 11 to move to the left, thereby moving the impurities inside to the left side of the outer shell 1 and collecting them at the impurity outlet 7. The support column 6 provides stable support for the outer shell 1, ensuring the stability and safety of the system.

[0025] Working principle: First, the chromium-containing wastewater to be treated is introduced into the housing 1 through wastewater inlet 2. The wastewater first enters the upper sliding chamber 9. Since the upper sliding chamber 9 is located above the filter plate 8, the wastewater undergoes preliminary filtration through the filter holes of the filter plate 8, trapping large particles of impurities in the wastewater on the filter plate 8. After preliminary filtration, the wastewater then flows into the bottom area of ​​the housing 1 and is located inside the lower sliding chamber 11. At this time, an agent to accelerate sedimentation is added into the housing 1 through the feed pipe 10. The agent mixes with the wastewater inside the lower sliding chamber 11 and undergoes a chemical reaction to generate precipitates, further purifying the wastewater. After chemical reaction and sedimentation treatment, the wastewater undergoes final filtration through the filter screen 12 to ensure that the wastewater is treated effectively. Tiny particles in the water are also trapped. The treated wastewater is then discharged through the outlet pipe 13 for further treatment or discharge. The upper sliding chamber 9 and the lower sliding chamber 11 can slide inside the outer shell 1 and are driven by the hydraulic telescopic rod 3. When it is necessary to clean the impurities on the filter plate 8 and the filter screen 12, the hydraulic telescopic rod 3 extends or retracts, causing the connecting plate 4 to move inside the slide groove 5. Due to the connection between the connecting plate 4 and the upper sliding chamber 9 and the lower sliding chamber 11, the two sliding chambers will also move to the left accordingly. The impurities inside are pushed to the left side inside the outer shell 1 and finally fall into the impurity outlet 7 for collection. The support column 6 provides stable support for the outer shell 1, ensuring the stability and safety of the system.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A chromium-containing wastewater purification system, characterized in that, include: The outer shell (1) has a wastewater inlet (2) on its upper surface, a hydraulic telescopic rod (3) fixedly connected to the front and rear surfaces of the outer shell (1), a connecting plate (4) fixedly connected to the left end of the hydraulic telescopic rod (3), a sliding groove (5) on the front and rear surfaces of the outer shell (1), an upper sliding chamber (9) slidably connected to the front and rear inner walls of the outer shell (1), a lower sliding chamber (11) slidably connected to the front and rear inner walls of the outer shell (1), a filter plate (8) fixedly connected to the side inner wall of the outer shell (1), a feed pipe (10) fixedly connected to the right surface of the outer shell (1), an impurity outlet (7) on the lower surface of the outer shell (1), a water outlet pipe (13) embedded in the bottom of the outer shell (1), a valve (14) on the side surface of the water outlet pipe (13), and a filter screen (12) fixedly connected to the lower bottom wall of the outer shell (1).

2. The chromium-containing wastewater purification system according to claim 1, characterized in that, The connecting plate (4) is fixedly connected to the front and rear surfaces of the upper sliding chamber (9) and the lower sliding chamber (11), and the lower sliding chamber (11) is located directly below the upper sliding chamber (9).

3. The chromium-containing wastewater purification system according to claim 1, characterized in that, The upper sliding chamber (9) is located on the upper surface of the filter plate (8) and is located directly below the wastewater inlet (2).

4. The chromium-containing wastewater purification system according to claim 1, characterized in that, The feed pipe (10) is connected to the outer shell (1) and is located between the filter plate (8) and the lower sliding chamber (11).

5. The chromium-containing wastewater purification system according to claim 1, characterized in that, The impurity outlet (7) is located on the left side of the upper sliding chamber (9) and the lower sliding chamber (11), and is connected to the outer shell (1).

6. The chromium-containing wastewater purification system according to claim 1, characterized in that, The filter screen (12) is located at the connection between the water outlet pipe (13) and the bottom wall of the outer shell (1), and the lower sliding chamber (11) is located above the filter screen (12).

7. The chromium-containing wastewater purification system according to claim 1, characterized in that, The groove (5) passes through the outer shell (1), and the connecting plate (4) is located inside the groove (5).

8. The chromium-containing wastewater purification system according to claim 1, characterized in that, A support column (6) is fixedly connected to the lower surface of the outer shell (1).

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