Integrated equipment for treating wastewater from nylon 66 production

Abstract

The application discloses a kind of nylon 66 production wastewater treatment integrated equipment, it is related to wastewater treatment field, including processing box, the side of the processing box is equipped with mixing box, the top of the mixing box is equipped with water inlet pipe, the top of the water inlet pipe is equipped with reagent tank, the reagent tank is connected by connecting pipe between mixing box, the water outlet of the mixing box is connected with transfer tank, the water outlet of the transfer tank is connected with spiral pipe, the water outlet end of the spiral pipe is connected with processing box.The wastewater is mixed with reagent in the mixing box, and is mixed again by transfer tank and spiral pipe, effectively improves the contact degree of reagent and wastewater and the subsequent flocculation effect, wastewater then enters the precipitation tank, transfer tank and supernatant separation tank, the flocculated precipitate is sequentially separated, ensures that the suspended solids in wastewater are removed in the pretreatment stage, effectively improves the wastewater treatment effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wastewater treatment, in particular to a nylon 66 production wastewater treatment integrated equipment. BACKGROUND

[0002] Polyhexamethylene adipamide, commonly known as nylon 66, is a thermoplastic resin, which is generally prepared by polycondensation of adipic acid and hexamethylene diamine. It is insoluble in general solvents and only soluble in m-cresol. It has high mechanical strength and hardness, and is rigid, and can be used as engineering plastic, mechanical accessories such as gears, lubricated bearings, and can replace non-ferrous metal materials to make machine housings, automobile engine blades, etc., and can also be used to make synthetic fibers.

[0003] Nylon 66 will produce wastewater during production, and the pretreatment of wastewater is generally realized through the process of grille-regulating pool-coagulation. The wastewater is intercepted by the grille to remove large pollutants and floating oil, and then enters the oil separation regulating pool for homogenization and equalization. Then the polyester production wastewater is lifted to the coagulation tank by the lifting pump, and the reagent is added for flocculation reaction. The fine suspended solids in the water are coagulated to form precipitates, so as to remove most of the suspended solids and part of the organic pollutants.

[0004] However, in the actual pretreatment process, the degree of flocculation reaction of wastewater depends on the contact degree of wastewater and reagent. The higher the contact degree, the better the flocculation effect, otherwise part of the suspended solids in the wastewater may not be flocculated, affecting the subsequent treatment effect. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a nylon 66 production wastewater treatment integrated equipment to solve the technical problem that the general wastewater cannot be completely contacted with the reagent, resulting in general flocculation effect.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a nylon production wastewater treatment integrated equipment, comprising a treatment tank, a mixing tank is installed on one side of the treatment tank, a water inlet pipe is arranged at the top of the mixing tank, a reagent tank is arranged at the top of the water inlet pipe, the reagent tank and the mixing tank are connected through a connecting pipe, a transfer tank is connected to the water outlet of the mixing tank, a spiral pipe is connected to the water outlet of the transfer tank, and the water outlet end of the spiral pipe is connected to the treatment tank. The inside of the treatment tank is sequentially separated into a sedimentation tank, a transfer tank and a supernatant separation tank by a first partition plate and a second partition plate.

[0007] Further, the inner side wall of the treatment tank and the side wall of the first partition plate are both provided with an ultrasonic generator, and the height of the first partition plate is lower than that of the second partition plate.

[0008] Further, the bottom of the second partition plate is provided with a valve.

[0009] Further, the processing box is externally provided with a fixed shell on one side, a plurality of layer plates are slidingly arranged on the inner wall of the fixed shell, a guide plate is rotatably arranged on one side of the processing box, and an extension cylinder is mounted on the inner side of the guide plate.

[0010] Further, a connecting plate is arranged on the contact surface between the guide plate and the fixed shell.

[0011] Further, the layer plate is an arc-shaped plate structure, and a through groove matched with the layer plate is formed in the inner wall of the fixed shell.

[0012] Further, the mixing box is internally rotatably provided with a medicine storage pipe, a plurality of rotating plates are arranged on the outer wall of the medicine storage pipe, a movable sleeve is arranged in the inner side of the rotating plate, one end of the movable sleeve penetrates through the outer wall of the medicine storage pipe and extends into the inner side of the medicine storage pipe, a pressing plate is arranged on one end of the medicine storage pipe, the side wall of the pressing plate is in close contact with the inner side wall of the rotating plate, a through hole is formed in one side of the pressing plate, the medicine in the medicine storage pipe flows to one side of the pressing plate through the through hole in the movable sleeve, a plurality of spray heads are arranged on the outer wall of the rotating plate, a fixed plate is fixedly arranged on the inner side wall of the rotating plate, a group of connecting columns are penetratingly arranged on one side of the fixed plate, a limiting column is arranged on one end of the connecting column, and a limiting groove matched with the limiting column is formed in the side wall of the mixing box.

[0013] Further, a plurality of limiting blocks are arranged on the inner wall of the spiral pipe, and the limiting blocks are in cross-shaped structure.

[0014] Further, a plurality of first suspended matter sensors are mounted on the side wall of the first partition plate, and a second suspended matter sensor is mounted on the side wall of the guide plate.

[0015] Further, the connecting plate is a rubber plate.

[0016] In summary, the present application mainly has the following advantages: the wastewater and the medicine are mixed in the mixing box, and then are fully mixed again in the transfer box and the spiral pipe, so that the contact degree of the medicine and the wastewater and the subsequent flocculation effect are effectively improved, the flocculated precipitate is sequentially separated in the subsequent sedimentation tank, the transfer tank and the supernatant separation tank, the suspended matter in the wastewater in the pretreatment stage is removed, and the wastewater treatment effect is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a first perspective view of the present application;

[0018] Figure 2 FIG. 5 is a cross-sectional view of the internal structure of the mixing box of the present application;

[0019] Figure 3 is a front view of the internal structure of the mixing box of the present application;

[0020] Figure 4 is a sectional view of the internal structure of the rotating plate of the present application;

[0021] Figure 5 is a perspective view of the second angle of the present application;

[0022] Figure 6 is a schematic view of the internal structure of the processing box of the present application;

[0023] Figure 7 is a schematic view of the internal structure of the fixed shell of the present application.

[0024] In the figure: 1, processing box; 2, water inlet pipe; 3, mixing box; 4, reagent box; 5, connecting pipe; 6, reagent storage pipe; 7, rotating plate; 8, movable sleeve; 9, connecting column; 10, limiting groove; 11, pressing plate; 12, spray head; 13, transfer box; 14, spiral pipe; 15, stop block; 16, ultrasonic generator; 17, first partition; 18, second partition; 19, valve; 20, first suspended matter sensor; 21, guide plate; 22, second suspended matter sensor; 23, layer plate; 24, telescopic cylinder; 25, connecting plate; 26, fixed plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0026] The embodiments of the present application will be described below according to the overall structure of the present application.

[0027] A nylon 66 production wastewater treatment integrated equipment, as shown in Figures 1-7 , comprises a processing box 1 for treating wastewater mixed with flocculating reagent, the inside of the processing box 1 is sequentially divided into a sedimentation tank, a transfer tank and a supernatant separation tank by a first partition 17 and a second partition 18.

[0028] A mixing box 3 is installed on one side of the processing box 1, the top of the mixing box 3 is provided with a water inlet pipe 2, the top of the water inlet pipe 2 is provided with a reagent box 4, the reagent box 4 and the mixing box 3 are connected by a connecting pipe 5, a reagent storage pipe 6 is rotatably arranged in the inside of the mixing box 3, the reagent in the reagent box 4 enters the inside of the reagent storage pipe 6 in the mixing box 3 through the connecting pipe 5, and the wastewater enters the mixing box 3 through the water inlet pipe 2.

[0029] The outer wall of the medicine storage pipe 6 is provided with a plurality of rotating plates 7, the inside of the rotating plate 7 is provided with a movable sleeve 8, one end of the movable sleeve 8 penetrates through the outer wall of the medicine storage pipe 6 and extends to the inside of the medicine storage pipe 6, one end of the medicine storage pipe 6 is provided with a pressing plate 11, the side wall of the pressing plate 11 is in close contact with the inner side wall of the rotating plate 7, and a through hole is formed in one side of the pressing plate 11, the medicine in the medicine storage pipe 6 flows to one side of the pressing plate 11 through the inner hole of the movable sleeve 8, the outer wall of the rotating plate 7 is provided with a plurality of spray heads 12, the inner side wall of the rotating plate 7 is fixedly provided with a fixed plate 26, a group of connecting columns 9 are penetratingly arranged on one side of the fixed plate 26, one end of the connecting column 9 is provided with a limiting column, and the side wall of the mixing box 3 is provided with a limiting groove 10 matched with the limiting column, the waste water entering the mixing box 3 will drive the rotating plate 7 and the medicine storage pipe 6 to rotate, when the rotating plate 7 rotates clockwise, the limiting column will move along the limiting groove 10, at this time, the connecting column 9 and the limiting column will pull the pressing plate 11 to move towards the direction close to the medicine storage pipe 6 first, and then move away from the medicine storage pipe 6, because the medicine flows to one side of the pressing plate 11 through the inner hole of the movable sleeve 8, when the pressing plate 11 moves away from the medicine storage pipe 6, the medicine will be extruded to be sprayed from the spray head 12, because the side wall of the pressing plate 11 is in close contact with the inner side wall of the rotating plate 7, the movement of the pressing plate 11 will play a role similar to the piston movement, so that the medicine can be smoothly sprayed out;

[0030] Further, the through hole of the pressing plate 11 is internally provided with a one-way valve, the medicine can only enter the inside of the rotating plate 7 from the through hole, and cannot move reversely, after the medicine is extruded by the pressing plate 11, the medicine in the medicine storage pipe 6 will be supplemented.

[0031] At the same time, the movement track of the connecting column 9 and the limiting column in the limiting groove 10 is set as: when the rotating plate 7 rotates to the water outlet position of the water inlet pipe 2, the pressing plate 11 just pushes out the medicine, so that the medicine can be gradually added during the movement of the waste water, and a large amount of medicine is not added at one time, the mixing effect of the waste water and the medicine is better, and the rotation of the rotating plate 7 is realized by the movement of the waste water, and does not need an additional power unit to provide power.

[0032] The water outlet of the mixing box 3 is connected with a transfer box 13, the water outlet of the transfer box 13 is connected with a spiral pipe 14, and the water outlet end of the spiral pipe 14 is connected with the treatment box 1, after the waste water and the medicine in the mixing box 3 are mixed, the waste water enters the transfer box 13 and then enters the spiral pipe 14, and the waste water is further mixed in the spiral pipe 14, effectively increasing the mixing time of the waste water and the medicine, and a plurality of blocking pieces 15 are arranged on the inner wall of the spiral pipe 14, and the blocking pieces 15 are cross-shaped, the cross-shaped blocking pieces 15 block the advancing route of the waste water, which can further improve the mixing time of the medicine and the waste water.

[0033] The inner side wall of the treatment box 1 is provided with an ultrasonic generator 16, and the side wall of the first partition plate 17 is also provided with an ultrasonic generator 16. The height of the first partition plate 17 is lower than the height of the second partition plate 18. The mixed wastewater enters the sedimentation tank of the treatment box 1 for sedimentation work. The ultrasonic generator 16 can effectively remove suspended solids. The settled wastewater is once supernatant which flows from above the first partition plate 17 to the transfer tank, and then enters the supernatant separation tank from below the second partition plate 18. The second partition plate 18 prevents the once supernatant from falling directly from a high place to a low place, and disturbs the already settled wastewater again. Therefore, the wastewater enters from below the second partition plate 18, effectively improving the stability of the wastewater during movement.

[0034] A fixed shell is arranged on one side of the treatment box 1. A plurality of layer plates 23 are slidably arranged on the inner wall of the fixed shell. A guide plate 21 is rotatably arranged on one side of the treatment box 1. An extension cylinder 24 is arranged on one side of the guide plate 21 inside the fixed shell. The layer plate 23 is an arc-shaped plate structure. The inner wall of the fixed shell is provided with a through groove matched with the layer plate 23. The wastewater in the supernatant separation tank is settled again to separate the wastewater into supernatant and sediment. The extension cylinder 24 is started and retracted to turn the guide plate 21 outward and make the layer plate 23 move along the through groove. At this time, the supernatant will flow to the top of the layer plate 23 along the guide plate 21 and then enter the next process for advanced treatment. The discharge of the supernatant by the guide plate 21 is relatively gentle and will not disturb the sediment at the bottom. The contact surface between the guide plate 21 and the fixed shell is provided with a connecting plate 25. The connecting plate 25 is a rubber plate which can be bent to fit the gap when the guide plate 21 rotates, effectively preventing the wastewater from entering the inside of the fixed shell when the guide plate 21 rotates. The layer plates 23 and the fixed shell are both provided with sliding seals, further improving the sealing effect.

[0035] As the cleaning time advances, the sediment in the treatment box 1 increases and it is difficult to separate the supernatant. A plurality of first suspended solids sensors 20 are arranged on the side wall of the first partition plate 17. A second suspended solids sensor 22 is arranged on the side wall of the guide plate 21. A valve 19 is arranged at the bottom of the second partition plate 18. The first suspended solids sensor 20 and the second suspended solids sensor 22 are based on infrared scattering light technology. The infrared light emitted by the light source will scatter when passing through the wastewater during transmission. The scattering light intensity is proportional to the suspended solids concentration. Therefore, when there is too much suspended solids, i.e. too much sediment, the supernatant separation effect is poor. At this time, sediment cleaning work can be carried out. The valve 19 is closed to clean the sediment in the supernatant separation tank and the sedimentation tank. The cleaning method can be suction or bottom discharge. This is not the main innovation, so it is not described in detail.

[0036] Although embodiments of the present application have been shown and described, it is to be understood that the present application is not limited to the above-described embodiments. Some of the components of the described embodiments can be used alone or in combinations with one another. The present application is applicable to many other generic or specific embodiments without departing from the scope of the present application.

Claims

1. An integrated wastewater treatment device for nylon 66 production, comprising a treatment tank (1), characterized in that: A mixing tank (3) is installed on one side of the treatment tank (1). A water inlet pipe (2) is installed on the top of the mixing tank (3). A reagent tank (4) is installed on the top of the water inlet pipe (2). The reagent tank (4) and the mixing tank (3) are connected by a connecting pipe (5). A transfer tank (13) is connected to the outlet of the mixing tank (3). A spiral pipe (14) is connected to the outlet of the transfer tank (13). The outlet end of the spiral pipe (14) is connected to the treatment tank (1). The interior of the treatment tank (1) is connected by a first partition (17) and a second partition. (18) Separated in sequence into a sedimentation tank, a transfer tank and a supernatant separation tank, a fixed shell is provided on one side of the treatment tank (1), and multiple layers (23) are slidably provided on the inner wall of the fixed shell. A guide plate (21) is rotatably provided on one side of the treatment tank (1), and a telescopic cylinder (24) is installed on one side of the guide plate (21) inside the fixed shell. A connecting plate (25) is provided on the contact surface between the guide plate (21) and the fixed shell. The layer (23) is an arc-shaped plate structure, and the inner wall of the fixed shell is provided with a through groove that matches the layer (23).

2. The integrated wastewater treatment equipment for nylon 66 production according to claim 1, characterized in that: An ultrasonic generator (16) is installed on the inner side wall of the processing box (1) and the side wall of the first partition (17). The height of the first partition (17) is lower than the height of the second partition (18).

3. The integrated wastewater treatment equipment for nylon 66 production according to claim 1, characterized in that: A valve (19) is installed at the bottom of the second partition (18).

4. The integrated wastewater treatment equipment for nylon 66 production according to claim 1, characterized in that: The mixing box (3) is equipped with a rotating drug storage tube (6) inside. The outer wall of the drug storage tube (6) is provided with multiple rotating plates (7). The rotating plates (7) are equipped with a movable sleeve (8) inside. One end of the movable sleeve (8) passes through the outer wall of the drug storage tube (6) and extends into the inside of the drug storage tube (6). One end of the drug storage tube (6) is provided with a pressure plate (11). The side wall of the pressure plate (11) is in close contact with the inner side wall of the rotating plates (7), and one side of the pressure plate (11) has an opening. Through the through hole, the medicine in the medicine storage tube (6) flows through the inner hole of the movable sleeve (8) to one side of the pressure plate (11). The outer wall of the rotating plate (7) is provided with multiple nozzles (12). The inner side wall of the rotating plate (7) is fixedly provided with a fixing plate (26). A set of connecting columns (9) is provided through one side of the fixing plate (26). One end of the connecting column (9) is provided with a limiting column. The side wall of the mixing box (3) is provided with a limiting groove (10) that cooperates with the limiting column.

5. The integrated wastewater treatment equipment for nylon 66 production according to claim 1, characterized in that: The inner wall of the spiral tube (14) is provided with multiple baffles (15), and the baffles (15) are cross-shaped.

6. The integrated wastewater treatment equipment for nylon 66 production according to claim 1, characterized in that: The first partition (17) is equipped with a plurality of first suspended matter sensors (20) on its sidewall, and the guide plate (21) is equipped with a second suspended matter sensor (22) on its sidewall.

7. The integrated wastewater treatment equipment for nylon 66 production according to claim 5, characterized in that: The connecting plate (25) is a rubber plate.

Images