Pretreatment device for phosphorus-containing wastewater

Abstract

The utility model discloses a pretreatment device for phosphorus-containing wastewater, which relates to the technical field of wastewater treatment, and comprises a treatment box and a cleaning component, a first placing frame for loading gravels and a second placing frame for loading activated carbon are inserted in the treatment box side by side, a partition plate is fixedly arranged in the treatment box, and the treatment box is divided into two spaces by the partition plate; a sewage discharging groove is formed in the side, close to the partition plate, of the treatment box, two cleaning grooves are formed in the partition plate, and the two cleaning grooves communicate with an opening in one side of the first containing frame and an opening in one side of the second containing frame correspondingly. According to the utility model, the treatment box is connected with the water inlet pipeline of the wastewater treatment pond, and before entering the wastewater treatment pond, phosphorus-containing wastewater is subjected to impurity filtration by gravels in the treatment box, is partially absorbed by activated carbon and finally enters the wastewater treatment pond, so that the subsequent phosphorus-containing wastewater treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wastewater treatment especially relates to a pretreatment device of phosphorus-containing wastewater. BACKGROUND

[0002] Phosphorus-containing wastewater mainly comes from industrial production processes, such as phosphate fertilizer production, chemical production, automobile manufacturing (especially painting process) etc. These wastewaters contain a large amount of phosphate ions and phosphite ions, which cause serious harm to the environment and ecological system. Specifically, the discharge of phosphorus-containing wastewater into the environment will lead to water eutrophication, causing a large number of algae growth, affecting the survival of other organisms, and also reducing the transparency and oxygenation capacity of water, leading to water quality deterioration and causing damage to the aquatic environment. In addition, when the amount of phosphorus in water reaches a certain amount, it will also affect human health, such as causing osteoporosis and other diseases.

[0003] The traditional phosphorus-containing wastewater is directly poured into the wastewater treatment tank without pretreatment, which will cause large solid particles, fiber materials and other impurities to enter the wastewater treatment tank, thereby affecting the treatment efficiency of phosphorus-containing wastewater. SUMMARY

[0004] The utility model discloses a pretreatment device of phosphorus-containing wastewater to solve the problem of the prior art that phosphorus-containing wastewater does not have a pretreatment step.

[0005] In order to solve the problems existing in the prior art, the utility model adopts the following technical scheme:

[0006] A pretreatment device of phosphorus-containing wastewater, comprising a treatment tank and a cleaning assembly, the treatment tank is provided with a first placement frame loaded with gravel and a second placement frame loaded with activated carbon side by side, a partition is fixedly arranged inside the treatment tank, the partition separates the treatment tank into two spaces, a sewage discharge groove is formed on one side of the treatment tank close to the partition, two cleaning grooves are formed on the partition, and the two cleaning grooves are respectively connected with the opening on one side of the first placement frame and the opening on one side of the second placement frame, the cleaning assembly is used to clean the impurities filtered in the first placement frame to one side of the partition, and is used to turn over the activated carbon in the second placement frame.

[0007] Preferably, the cleaning assembly comprises two rectangular frames, the two rectangular frames are arranged in the side surface of the treatment tank, the end portions of the two rectangular frames are located in the cleaning grooves, a plurality of cleaning rods are fixedly arranged on one side of the two rectangular frames, and the cleaning rods are respectively located in the first placement frame and the second placement frame.

[0008] Preferably, an inclined plate is fixedly arranged at the opening on one side of the first placement frame, and a straight plate is fixedly arranged at the opening on one side of the second placement frame.

[0009] Preferably, the first and the second placing frame are fixedly provided with sliding blocks on the lower surfaces, and the processing box is fixedly provided with rails symmetrical to the number of the sliding blocks inside.

[0010] Preferably, the first and the second placing frame are fixedly provided with baffle plates at one end, and the baffle plates and the outer wall of the processing box are fixedly provided with symmetrically connected blocks, and the connected blocks are provided with bolts.

[0011] Preferably, the partition plate is fixedly provided with a guide block at the top, and one side of the guide block is attached to the inner wall of the processing box.

[0012] Preferably, the processing box is fixedly provided with a connecting pipe at the top, and the connecting pipe is provided with a flange plate at the upper end.

[0013] Preferably, the first and the second placing frame are provided with metal nets at the bottom.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. In the present application, the processing box is connected with the water inlet pipeline of the wastewater treatment tank, and the phosphorus-containing wastewater is first filtered by the sand in the processing box, then partially absorbed by the activated carbon, and finally enters the wastewater treatment tank, thereby improving the subsequent treatment efficiency of the phosphorus-containing wastewater.

[0016] 2. In the present application, the cleaning assembly is arranged in the first and the second placing frame containing sand and activated carbon, and the impurities in the sand are cleaned into another space separated by the partition plate, and the activated carbon is turned over, so that the impurities are better absorbed by the activated carbon, thereby improving the pretreatment efficiency of the phosphorus-containing wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application together with the specification. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 is a schematic diagram of the internal structure of the processing box of the present application;

[0020] Figure 3 is a schematic diagram of the cleaning assembly structure of the present application;

[0021] Figure 4This is a schematic diagram of the first and second placement frames of this utility model.

[0022] The numbers in the diagram are as follows: 1. Processing box; 11. First placement frame; 12. Second placement frame; 13. Partition; 14. Cleaning trough; 15. Drainage trough; 2. Cleaning assembly; 21. Rectangular frame; 22. Cleaning rod; 3. Inclined plate; 31. Straight plate; 4. Guide rail; 41. Slider; 5. Baffle; 51. Connecting block; 6. Guide block; 7. Connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example: This example provides a pretreatment device for phosphorus-containing wastewater. See [link to example]. Figures 1-4 Specifically, it includes a treatment box 1 and a cleaning component 2. The treatment box 1 has a first placement frame 11 for loading gravel and a second placement frame 12 for loading activated carbon inserted side by side. A partition 13 is fixed inside the treatment box 1, which separates the treatment box 1 into two spaces. A drain trough 15 is opened on the side of the treatment box 1 near the partition 13. Two cleaning troughs 15 are opened on the partition 13. The two cleaning troughs 15 are respectively connected to the opening on one side of the first placement frame 11 and the opening on one side of the second placement frame 12. The cleaning component 2 is used to clean the impurities filtered in the first placement frame 11 to one side of the partition 13 and to turn the activated carbon in the second placement frame 12 over.

[0025] The treatment tank 1 is installed at the inlet of the wastewater treatment tank. Phosphorus-containing wastewater enters from the top of the treatment tank 1, first passing through the first placement frame 11, where larger impurities in the phosphorus-containing wastewater are filtered out by gravel. Then it passes through the second placement frame 12, where some harmful substances in the phosphorus-containing wastewater are absorbed by activated carbon. Finally, it is discharged from the bottom of the treatment tank 1 into the wastewater treatment tank, achieving preliminary treatment of phosphorus-containing wastewater and improving the efficiency of subsequent treatment. The impurities filtered out in the first placement frame 11 are cleaned by the cleaning component 2. Since the partition 13 separates the treatment tank 1 into two spaces, one for treating phosphorus-containing wastewater and the other for cleaning filtered impurities, the impurities in the gravel pass through the cleaning trough 14, fall to the bottom from one side of the partition 13, and are finally discharged from the drain trough 15, thus cleaning the impurities. While cleaning the impurities, the cleaning component 2 also cleans the activated carbon in the second placement frame 12, improving the absorption efficiency of the activated carbon.

[0026] In the specific implementation process, such as Figure 2 and Figure 3As shown, the cleaning component 2 includes two rectangular frames 21, which are inserted into the side of the processing box 1. The ends of the two rectangular frames 21 are located in the cleaning groove 14. Multiple cleaning rods 22 are fixedly provided on one side of the two rectangular frames 21, and the cleaning rods 22 are respectively located in the first placement frame 11 and the second placement frame 12.

[0027] One end of the rectangular frame 21 passes through the cleaning groove 14 and fits into the opening of the first placement frame 11 and the second placement frame 12 to block phosphorus-containing wastewater. When cleaning is required, the rectangular frame 21 is pulled, and the rectangular frame 21 drives the L-shaped cleaning rod 22 to move along the first placement frame 11 and the second placement frame 12. Since the sand and gravel are small in volume and the impurities being filtered are large, the cleaning rod 22 will carry the impurities from the sand and gravel to one side of the partition plate 13. The cleaning rod 22 in the second placement frame 12 will drive the activated carbon to flip, thereby improving the treatment efficiency of phosphorus-containing wastewater.

[0028] In the specific implementation process, such as Figure 4 As shown, a slanted plate 3 is fixedly provided at one side opening of the first placement frame 11, and a straight plate 31 is fixedly provided at one side opening of the second placement frame 12.

[0029] The inclined plate 3 is used to block the gravel and prevent the cleaning rod 22 from carrying the gravel away from the first placement frame 11. The cleaning rod 22 will carry the impurities and move from the inclined surface of the inclined plate 3 to pull the impurities into one side of the partition 13. The straight plate 31 is used to block the activated carbon and prevent the activated carbon from being lost.

[0030] In the specific implementation process, such as Figure 3 and Figure 4 As shown, sliders 41 are fixedly provided on the lower surfaces of the first placement frame 11 and the second placement frame 12, and guide rails 4 are fixedly provided inside the processing box 1 in proportion to the number of sliders 41. The sliders 41 are all located inside the guide rails 4.

[0031] By setting guide rail 4 and slider 41, the first placement frame 11 and the second placement frame 12 can be moved easily, making it convenient to change the internal materials.

[0032] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a baffle 5 is fixedly provided at one end of the first placement frame 11 and the second placement frame 12. A symmetrical connecting block 51 is fixedly provided on both the baffle 5 and the outer wall of the processing box 1. Bolts are provided on the connecting block 51.

[0033] The position of the baffle 5 can be fixed by bolts passing through the two connecting blocks 51, so that the first placement frame 11 and the second placement frame 12 cannot move in the processing box 1, thereby improving structural stability.

[0034] In the specific implementation process, such as Figure 2 and Figure 3As shown, a guide block 6 is fixedly provided on the top of the partition 13, and one side of the guide block 6 is attached to the inner wall of the treatment box 1; the guide block 6 guides the falling phosphorus-containing wastewater to the position of the first placement frame 11.

[0035] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a connecting pipe 7 is fixedly installed on the top of the treatment box 1, and a flange is provided at the upper end of the connecting pipe 7; it can be quickly connected to the water inlet pipe through the flange on the connecting pipe 7.

[0036] In the specific implementation process, such as Figure 2 As shown, both the first placement frame 11 and the second placement frame 12 are provided with metal mesh at the bottom; the metal mesh is used to support the gravel and activated carbon, and to facilitate the passage of phosphorus-containing wastewater.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for phosphorus-containing wastewater, characterized in that: The device includes a processing box (1) and a cleaning component (2). The processing box (1) has a first placement frame (11) for loading gravel and a second placement frame (12) for loading activated carbon inserted side by side. A partition (13) is fixedly installed inside the processing box (1), which separates the processing box (1) into two spaces. A drain trough (15) is opened on the side of the processing box (1) near the partition (13). Two cleaning troughs (14) are opened on the partition (13), and the two cleaning troughs (14) are respectively connected to the opening on one side of the first placement frame (11) and the opening on one side of the second placement frame (12). The cleaning component (2) is used to clean the impurities filtered in the first placement frame (11) to one side of the partition (13) and to turn the activated carbon in the second placement frame (12) over.

2. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: The cleaning component (2) includes two rectangular frames (21), which are inserted into the side of the processing box (1). The ends of the two rectangular frames (21) are located in the cleaning groove (14). Multiple cleaning rods (22) are fixedly provided on one side of the two rectangular frames (21). The cleaning rods (22) are located in the first placement frame (11) and the second placement frame (12) respectively.

3. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: An inclined plate (3) is fixedly provided at one side opening of the first placement frame (11), and a straight plate (31) is fixedly provided at one side opening of the second placement frame (12).

4. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: The lower surfaces of the first placement frame (11) and the second placement frame (12) are both fixedly provided with sliders (41), and the interior of the processing box (1) is fixedly provided with guide rails (4) that are symmetrical in number to the number of sliders (41), and the sliders (41) are all located inside the guide rails (4).

5. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: Both the first placement frame (11) and the second placement frame (12) are fixedly provided with baffles (5) at one end. Both the baffles (5) and the outer wall of the processing box (1) are fixedly provided with symmetrical connecting blocks (51), and the connecting blocks (51) are provided with bolts.

6. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: The top of the partition (13) is fixedly provided with a guide block (6), and one side of the guide block (6) is attached to the inner wall of the processing box (1).

7. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: The top of the processing box (1) is fixedly provided with a connecting pipe (7), and the upper end of the connecting pipe (7) is provided with a flange.

8. The pretreatment device for phosphorus-containing wastewater according to claim 1, characterized in that: Both the first placement frame (11) and the second placement frame (12) have metal mesh at their bottoms.

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