A pickling wastewater recovery treatment system

Abstract

The utility model discloses a pickling sewage recycling treatment system relates to sewage recycling treatment technical field, and the inside of including treatment box is provided with the agitator disc, and the outer surface of agitator disc is installed with PH sensor, the feed inlet of treatment box is provided with filter mechanism, the inside top of treatment box is provided with pre -reaction mechanism, the one side of pre -reaction mechanism is provided with second shower nozzle, the upper surface of second shower nozzle is connected with second water pipe, the right -hand member surface of treatment box is connected with water tank, and second water pipe communicates with water tank through water pump, the below of water tank is provided with drain pipe, and drain pipe communicates with treatment box, the drain pipe is connected with flocculator tank through water pump, the inside of flocculator tank is provided with heat exchange mechanism. The utility model discloses through being provided with a series of structure, utilizes the pre -reaction of acid and alkali liquid and has shortened the time required for the neutralization of whole solution, can recover and utilize the heat generated in the neutralization reaction process simultaneously, saves the energy.

Description

Technical Field

[0001] This utility model relates to the quartz sand production process, specifically a wastewater recycling and treatment system for quartz sand production. Background Technology

[0002] Quartz sand is a mineral particle with natural silicon dioxide as its main component. It is widely used in many fields such as glass, casting, ceramics, electronics, photovoltaics and water treatment. In its production and processing, in order to improve its purity and whiteness, it is acid-washed with acid solution to remove impurities from the surface of quartz sand.

[0003] Acidic waste liquid is generated during pickling. This waste liquid is usually collected and recycled. However, in current treatment equipment, most of the time, alkaline solution is added after the acid liquid is collected for neutralization reaction, which results in a long neutralization time for the acid liquid. In addition, the heat generated during the neutralization process is not collected, resulting in energy waste. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing an acid washing wastewater recycling and treatment system that can shorten the time required for the neutralization reaction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acid pickling wastewater recycling and treatment system, comprising a treatment tank, an agitator plate inside the treatment tank, a pH sensor mounted on the outer surface of the agitator plate, a filter mechanism at the inlet of the treatment tank, a pre-reaction mechanism at the top of the treatment tank, a second nozzle on one side of the pre-reaction mechanism, a second water pipe connected to the upper surface of the second nozzle, a water tank connected to the right end of the treatment tank, the second water pipe connected to the water tank via a water pump, a drain pipe below the water tank connected to the treatment tank, the drain pipe connected to a flocculation tank via a water pump, and a heat exchange mechanism inside the flocculation tank.

[0006] Preferably, the filtration mechanism includes a housing, a turntable, baffles, and a filter screen. The housing is connected to the upper surface of the processing box. The housing has a semi-circular structure and an opening on the left end surface. The turntable is disposed inside the housing. Baffles are connected to both the upper and lower surfaces of the turntable, and filter screens are connected to both the left and right surfaces of the turntable.

[0007] Preferably, the turntable is connected to a handle at its front end, and the handle is located on the front side of the housing. The housing is provided with a transparent window, and extension plates are connected to both the top and bottom ends of the housing.

[0008] Preferably, the pre-reaction mechanism includes a connecting block, a first water pipe, and a first nozzle. The connecting block is located at the top of the inside of the treatment tank. The first water pipe is inserted inside the connecting block. Multiple first nozzles are installed sequentially from top to bottom on the bottom of the first water pipe, and the output ends of the first nozzles are all located outside the connecting block.

[0009] Preferably, the top and bottom of the right end surface of the connecting block are connected to protruding plates, and a lead screw is inserted inside the protruding plate at the top of the right end surface of the connecting block.

[0010] Preferably, the heat exchange mechanism includes a vent pipe and a connecting pipe. The connecting pipe is located inside the flocculation box. The top end of the connecting pipe is connected to the vent pipe via an air pump, and the other end of the vent pipe is connected to the treatment box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This application is equipped with a pre-reaction mechanism, which includes a connecting block, a first water pipe and a first nozzle. It can pre-react the pickling solution with the alkaline solution when the pickling solution enters the treatment tank, thereby shortening the time required for the subsequent neutralization reaction.

[0013] 2. This application is equipped with a heat exchange mechanism, which includes a vent pipe and a connecting pipe. During flocculation, the heat generated by the neutralization reaction can be transferred and exchanged, accelerating the flocculation process and saving energy. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the filter mechanism structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the pre-reaction mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the pre-reaction mechanism of this utility model in its upward state.

[0018] In the diagram: 1. Processing box; 2. Door; 3. Agitator; 4. pH sensor; 5. Housing; 6. Turntable; 7. Handle; 8. Transparent window; 9. Baffle; 10. Filter screen; 11. Extension plate; 12. Connecting block; 13. First water pipe; 14. First nozzle; 15. Convex plate; 16. Lead screw; 17. Water tank; 18. Second water pipe; 19. Second nozzle; 20. Drain pipe; 21. Flocculation box; 22. Vent pipe; 23. Connecting pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, an acid pickling wastewater recycling and treatment system includes a treatment tank 1. An agitator 3 is installed inside the treatment tank 1, and a pH sensor 4 is installed on the outer surface of the agitator 3. The pH sensor 4 model is selected according to actual needs. It can monitor the pH value of the solution inside the treatment tank 1 and wirelessly transmit the monitoring data to a remote terminal via a wireless transmission module for viewing by staff. The agitator 3 is rotated by a motor, ensuring thorough mixing and reaction of the acid and added alkali solutions inside the treatment tank 1. A filter mechanism is installed at the inlet of the treatment tank 1 to remove particulate impurities such as quartz sand contained in the acid pickling solution. A pre-reaction mechanism is installed at the top of the treatment tank 1. This mechanism allows the acid pickling solution to come into contact with the alkali solution before entering the treatment tank 1, thus pre-reacting and accelerating the entire neutralization reaction process. A second nozzle 19 is installed on one side of the pre-reaction mechanism, connected to a second water pipe 18. When the water level inside the treatment tank 1 rises and the pre-reaction mechanism needs to be moved upwards to avoid contact with the solution, the operation of the pre-reaction mechanism can be stopped. Alkaline solution, specifically calcium hydroxide solution, is added into the treatment tank 1 via the second nozzle 19 and the second water pipe 18. A water tank 17 is connected to the right end of the treatment tank 1, and the second water pipe 18 is connected to the water tank 17 via a water pump. The water tank 17 contains the alkaline solution. A drain pipe 20 is installed below the water tank 17, with its left end connected to the treatment tank 1 and its right end connected to the flocculation tank 21 via a water pump. The acid washing solution after neutralization enters the flocculation tank 21 for flocculation. The flocculation tank 21 is equipped with a heat exchange mechanism. During the flocculation process, the heat exchange mechanism absorbs the heat generated during the acid-base neutralization reaction to heat the solution during flocculation, thereby accelerating the flocculation process.

[0021] Specifically, the front end of the processing box 1 is connected to a door 2. Further, the filtration mechanism includes a housing 5, a turntable 6, a baffle 9, and a filter screen 10. The housing 5 is connected to the processing box 1. The housing 5 has a semi-circular structure and an opening at the left end. The turntable 6 is installed inside the housing 5. The turntable 6 is connected to both the top and bottom of the turntable 6. The left and right surfaces of the turntable 6 are connected to the filter screen 10. When the pickling solution enters the housing 5, it will come into contact with the filter screen 10 to remove particulate impurities. The baffle 9 is designed to prevent liquid leakage. By rotating the turntable 6, it is convenient to replace and clean the filter screen 10.

[0022] Furthermore, such as Figure 2 As shown, a handle 7 is connected to the turntable 6, and the handle 7 is located on one side of the outer casing 5. A transparent window 8 is provided on the outer casing. Extension plates 11 are connected to the top and bottom of the outer casing 5. The turntable 6 is rotated by rotating the handle 7. Positioning holes are reserved on both the upper and lower surfaces of the outer casing 5 to facilitate the pinning and fixing of the handle 7. When the turntable 6 rotates, the extension plates 11 can catch the liquid dripping from the baffle 8 and the filter screen 10, preventing the liquid from dripping directly onto the ground and causing pollution.

[0023] Furthermore, the pre-reaction mechanism includes a connecting block 12, a first water pipe 13, and a first nozzle 14. The connecting block 12 is located at the top of the inside of the treatment tank 1. The first water pipe 13 is inserted inside the connecting block 12. Multiple first nozzles 14 are installed sequentially from top to bottom on the bottom of the first water pipe 13, and the output ends of the first nozzles 14 are all located outside the connecting block 12. The first nozzles 14 spray out the alkaline solution transported by the first water pipe 13, and the spraying direction is exactly facing the pickling solution flowing into the treatment tank 1. At this time, the acid and alkali solutions come into contact to carry out the pre-reaction, reducing the time required for subsequent reactions. The connecting block 12 and the treatment tank 1 are connected by a snap-fit ​​connection.

[0024] Furthermore, the connecting block 12 is connected to two protruding plates 15 on one side. A lead screw 16 is inserted inside the upper protruding plate 15. A motor is connected to the top of the lead screw 16. By rotating the lead screw 16, the connecting block 12 can be moved up and down, thereby preventing the connecting block 12 from coming into contact with the solution and becoming contaminated when the water level inside the treatment tank 1 rises.

[0025] Furthermore, the heat exchange mechanism includes a vent pipe 22 and a connecting pipe 23. The connecting pipe 23 is located inside the flocculation box 21. The top end of the connecting pipe 23 is connected to the vent pipe 22 via an air pump, and the other end of the vent pipe 22 is connected to the treatment box 1. When the acid-base neutralization reaction takes place inside the treatment box 1, carbon dioxide gas carrying heat is generated. The gas is extracted by the air pump and transported through the vent pipe 22 to enter the interior of the connecting pipe 23. The connecting pipe 23 is designed in an S-shape to increase the gas flow time, thereby enabling sufficient heat exchange, increasing the solution temperature during flocculation, and accelerating the flocculation process.

[0026] The method of use in this embodiment is as follows: First, the pickling solution is filtered through the filtration mechanism and then introduced into the interior of the treatment tank 1. When the pickling solution enters the interior of the treatment tank 1, the first nozzle 14 sprays out the alkaline solution transported by the first water pipe 13. The spray direction is exactly facing the pickling solution flowing into the treatment tank 1. At this time, the acid and alkali solutions come into contact and pre-react, reducing the time required for subsequent reactions. When the water level inside the treatment tank 1 rises, the connecting block 12 can be raised by rotating the screw 16. During this process, the operation of the first nozzle 14 is stopped, and the second nozzle 19 is used in conjunction with the second water pipe 18 to add alkaline solution into the treatment tank 1. During the neutralization process, the pH sensor 4 continuously monitors the pH value. After neutralization is completed, the solution enters the flocculation tank 21 for flocculation. During the flocculation process, the heat exchange mechanism can accelerate the flocculation process. After flocculation is completed, the solution is discharged.

[0027] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pickling wastewater recycling and treatment system, comprising a treatment tank (1), characterized in that: The processing tank (1) is equipped with an agitator (3) inside, and a pH sensor (4) is installed on the outer surface of the agitator (3). A filter mechanism is installed at the feed inlet of the processing tank (1). A pre-reaction mechanism is installed at the top of the processing tank (1). A second nozzle (19) is installed on one side of the pre-reaction mechanism. The second nozzle (19) is connected to a second water pipe (18). A water tank (17) is connected to the right end of the processing tank (1). The second water pipe (18) is connected to the water tank (17) through a water pump. A drain pipe (20) is installed below the water tank (17). The drain pipe (20) is connected to the processing tank (1). The drain pipe (20) is connected to a flocculation tank (21) through a water pump. A heat exchange mechanism is installed inside the flocculation tank (21).

2. The pickling wastewater recycling and treatment system according to claim 1, characterized in that: The filtration mechanism includes a housing (5), a turntable (6), a baffle (9), and a filter screen (10). The housing (5) is connected to the processing box (1). The housing (5) has a semi-circular structure and an opening at the left end. The turntable (6) is installed inside the housing (5). The turntable (6) is connected to both the top and bottom of the turntable (6), and the filter screen (10) is connected to both the left and right sides of the turntable (6).

3. The pickling wastewater recycling and treatment system according to claim 2, characterized in that: The turntable (6) is connected to a handle (7) at its front end, and the handle (7) is located on one side of the outer shell (5). The outer shell (5) is provided with a transparent window (8), and extension plates (11) are connected to the top and bottom of the outer shell (5).

4. The pickling wastewater recycling and treatment system according to claim 1, characterized in that: The pre-reaction mechanism includes a connecting block (12), a first water pipe (13), and a first nozzle (14). The connecting block (12) is located at the top inside the treatment box (1). The first water pipe (13) is inserted inside the connecting block (12). Multiple first nozzles (14) are installed sequentially from top to bottom on the bottom of the first water pipe (13), and the output ends of the first nozzles (14) are all located outside the connecting block (12).

5. The pickling wastewater recycling and treatment system according to claim 4, characterized in that: The connecting block (12) has two protruding plates (15) connected to one side, and a lead screw (16) is inserted inside the upper protruding plate (15).

6. The pickling wastewater recycling and treatment system according to claim 1, characterized in that: The heat exchange mechanism includes a vent pipe (22) and a connecting pipe (23). The connecting pipe (23) is located inside the flocculation box (21). The top end of the connecting pipe (23) is connected to the vent pipe (22) via an air pump, and the other end of the vent pipe (22) is connected to the treatment box (1).

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