Coagulation microfiltration coating wastewater integrated treatment device

Abstract

The utility model belongs to the technical field of water treatment, and relates to a coagulation microfiltration coating wastewater integrated treatment device, which comprises a coagulation water tank for coagulation reaction of coating wastewater and a microfiltration water tank for microfiltration of coating wastewater, a tank cover is arranged at the top of the microfiltration water tank, a driving motor is fixedly mounted at the top of the tank cover, a gear ring is fixedly mounted on the inner wall of the tank cover, and the gear ring is connected with the microfiltration water tank. A flange cover is fixedly installed at one end of the microfiltration water tank, a filter cartridge is fixedly installed at the end, facing the microfiltration water tank, of the flange cover, the stirring assembly is installed in the coagulation water tank and used for stirring coating wastewater to increase the mixing speed of the coating wastewater and a coagulant, and the pump is fixedly communicated between the coagulation water tank and the microfiltration water tank; the device is used for treating the coating wastewater, the coagulation and microfiltration integrated design is adopted, the water treatment efficiency is improved, the water temperature, the PH value, the adding amount and the mixing speed can be adjusted in the coagulation process, and the coagulation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and particularly relates to an integrated treatment device for coagulation microfiltration coating wastewater. Background Technique

[0002] Coating wastewater refers to the wastewater generated during the coating process, mainly including three categories: pretreatment wastewater, electrophoretic coating wastewater, and spray painting wastewater. At present, the treatment of coating wastewater mainly adopts the coagulation method. Coagulation refers to the process of aggregating colloidal particles and tiny suspended solids in water by a certain method (such as adding chemical agents), which is a unit operation in water and wastewater treatment processes. Coagulation includes two processes: flocculation and coagulation. The agents that can play the roles of flocculation and coagulation are collectively called coagulants. Flocculation mainly refers to the process of destabilizing colloids and generating tiny aggregates, and coagulation mainly refers to the process of aggregating destabilized colloids or tiny suspended solids into large flocs.

[0003] The main factors affecting the coagulation effect of coating wastewater are water temperature, pH value, dosage of chemical agents, and mixing speed. Traditional water treatment devices are mostly static coagulation sedimentation type, which cannot accurately adjust the influencing factors according to the coagulation effect of coating wastewater. At the same time, after coagulation is completed, it is necessary to manually filter out the coagulants, which affects the overall treatment efficiency of coating wastewater. Content of the Utility Model

[0004] In order to solve the technical problems that traditional water treatment devices are mostly static coagulation sedimentation type, cannot accurately adjust the influencing factors according to the coagulation effect of coating wastewater, and it is necessary to manually filter out the coagulants after coagulation is completed, which affects the overall treatment efficiency of coating wastewater, the utility model provides the following technical solutions:

[0005] The utility model relates to an integrated treatment device for coagulation microfiltration coating wastewater, which includes a coagulation water tank for the coagulation reaction of coating wastewater, a microfiltration water tank for the microfiltration of coating wastewater, and a mounting frame. A water inlet pipe for inputting coating wastewater is arranged at the rear side of the coagulation water tank. A tank cover is arranged on the top of the microfiltration water tank. A driving motor is fixedly installed on the top of the tank cover. A gear ring is fixedly installed on the inner wall of the tank cover. A flange cover is fixedly installed at one end of the microfiltration water tank. A filter cylinder is fixedly installed on the end of the flange cover facing the microfiltration water tank. Both the coagulation water tank and the microfiltration water tank are fixedly installed on the mounting frame. Side covers with dense heat dissipation holes are fixedly installed on both sides of the mounting frame. A control host for electric control is fixedly installed on the mounting frame. It also includes:

[0006] A stirring assembly installed in the concrete water tank, the stirring assembly is used to stir the painting wastewater to improve the mixing speed with the coagulant. The stirring assembly includes a star base and a transmission shaft. A connecting shaft fixedly connected to the output end of the driving motor is provided at the center of the top of the star base. There are multiple transmission shafts and they are rotationally installed on the star base in an annular array. A gear meshed with a gear ring is fixedly installed at the top of the transmission shaft, and a stirring blade is fixedly welded to the bottom of the transmission shaft.

[0007] A pump fixed and communicated between the concrete water tank and the microfiltration water tank.

[0008] As a preferred technical solution of the present invention, a pH sensor for detecting the pH value of the painting wastewater and a temperature sensor for detecting the temperature of the painting wastewater are fixedly installed at the rear side of the concrete water tank, and an electric heating wire for heating the painting wastewater is provided inside the inner wall of the concrete water tank.

[0009] As a preferred technical solution of the present invention, an observation window for observing the mixing situation of the painting wastewater and the coagulant is opened at the front side of the concrete water tank.

[0010] As a preferred technical solution of the present invention, fixed seats are fixedly installed on both sides of the concrete water tank and the tank cover, and an electric push rod is fixedly installed between the fixed seat on the concrete water tank and the fixed seat on the tank cover.

[0011] As a preferred technical solution of the present invention, a filter mesh part is provided in the middle section of the filter cartridge, and a microfiltration pore membrane is covered outside the filter mesh part of the filter cartridge.

[0012] As a preferred technical solution of the present invention, a first connecting pipe is fixedly connected and communicated between the input end of the pump and the bottom of the concrete water tank, and a second connecting pipe is fixedly connected and communicated between the output end of the pump and the flange cover.

[0013] The beneficial effects achieved by the present invention are:

[0014] This device is used for the treatment of painting wastewater. It adopts an integrated design of coagulation and microfiltration. After coagulation is completed, the microfiltration water tank can be used to filter out small flower-shaped coagulants, improving the efficiency of water treatment.

[0015] During the coagulation process, the driving motor in the stirring assembly drives the stirring blade to revolve and rotate simultaneously to improve the mixing speed. By adding a pH sensor and a temperature sensor, the pH value and temperature during the mixing process of the painting wastewater and the coagulant are monitored, which is convenient for controlling the pH value and temperature to improve the coagulation effect during the coagulation process. Description of the Drawings

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model;

[0018] Figure 2 is a schematic connection diagram of a coagulation water tank and a microfiltration water tank in an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model;

[0019] Figure 3 is a schematic structural diagram of a coagulation water tank in an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model Figure 1 ;

[0020] Figure 4 is a schematic structural diagram of a coagulation water tank in an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model Figure 2 ;

[0021] Figure 5 is a schematic structural diagram of a stirring assembly in an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model;

[0022] Figure 6 is a schematic structural diagram of a microfiltration water tank in an integrated treatment device for coagulation microfiltration coating wastewater of the present utility model.

[0023] In the figure: 1. Coagulation water tank; 101. Observation window; 102. PH sensor; 103. Temperature sensor; 104. Electric push rod; 105. Tank cover; 106. Driving motor; 107. Gear ring; 2. Pump; 3. Microfiltration water tank; 301. Flange cover; 302. Filter cartridge; 303. Microfiltration pore membrane; 4. Stirring assembly; 401. Planet seat; 402. Transmission shaft; 403. Gear; 404. Stirring blade; 5. Mounting frame; 501. Side cover plate; 502. Control host. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment: As Figure 1 、 Figure 2 and Figure 5As shown in the figure, an integrated treatment device for coagulation microfiltration of painting wastewater includes a coagulation water tank 1 for the coagulation reaction of painting wastewater, a microfiltration water tank 3 for the microfiltration of painting wastewater, and a mounting frame 5. A water inlet pipe for inputting painting wastewater is provided at the rear side of the coagulation water tank 1. A tank cover 105 is provided on the top of the microfiltration water tank 3. A driving motor 106 is fixedly installed on the top of the tank cover 105. A gear ring 107 is fixedly installed on the inner wall of the tank cover 105. A flange cover 301 is fixedly installed at one end of the microfiltration water tank 3. A filter cylinder 302 is fixedly installed at the end of the flange cover 301 facing the microfiltration water tank 3. Both the coagulation water tank 1 and the microfiltration water tank 3 are fixedly installed on the mounting frame 5. Side covers 501 with dense heat dissipation holes are fixedly installed on both sides of the mounting frame 5. A control host 502 for electric control is fixedly installed on the mounting frame 5;

[0026] It also includes a stirring assembly 4 installed in the coagulation water tank 1. The stirring assembly 4 is used to stir the painting wastewater to improve the mixing speed with the coagulant;

[0027] A pump 2 fixedly connected between the coagulation water tank 1 and the microfiltration water tank 3.

[0028] As Figure 3 and Figure 4 shown in the figure, the stirring assembly 4 includes a planet carrier 401 and a transmission shaft 402. A connecting shaft fixedly connected to the output end of the driving motor 106 is provided at the center of the top of the planet carrier 401. Multiple transmission shafts 402 are provided and are rotatably installed on the planet carrier 401 in an annular array. A gear 403 meshing with the gear ring 107 is fixedly installed at the top of the transmission shaft 402. A stirring blade 404 is fixedly welded at the bottom of the transmission shaft 402. During use, the driving motor 106 drives the planet carrier 401 to rotate through the connecting shaft on the planet carrier 401. The rotation of the planet carrier 401 drives the transmission shaft 402 and the stirring blade 404 to revolve around the connecting shaft as the central axis. At the same time, the meshing effect of the gear 403 and the gear ring 107 is used to drive the transmission shaft 402 and the stirring blade 404 to rotate, so as to improve the mixing speed of the painting wastewater and the coagulant.

[0029] As Figure 3 shown in the figure, a pH sensor 102 for detecting the pH value of the painting wastewater and a temperature sensor 103 for detecting the temperature of the painting wastewater are fixedly installed at the rear side of the coagulation water tank 1. During use, the pH value and temperature during the mixing process of the painting wastewater and the coagulant are detected by the pH sensor 102 and the temperature sensor 103 and converted into electrical signals and transmitted to an external monitoring terminal. An electric heating wire for heating the painting wastewater is provided inside the inner wall of the coagulation water tank 1. During use, the temperature during the mixing of the painting wastewater is monitored through the external monitoring terminal. If the temperature is not enough, the electric heating effect of the electric heating wire can be used to increase the temperature of the painting wastewater to improve the mixing effect.

[0030] As Figure 2As shown in the figure, an observation window 101 for observing the mixing of coating wastewater and coagulant is provided on the front side of the coagulation water tank 1. During use, the mixing situation of the internal coating wastewater and coagulant can be observed through the observation window 101 to accurately judge the coagulation effect.

[0031] As Figure 1 , Figure 2 and Figure 3 shown in the figure, fixed seats are fixedly installed on both sides of the coagulation water tank 1 and the tank cover 105. An electric push rod 104 is fixedly installed between the fixed seat on the coagulation water tank 1 and the fixed seat on the tank cover 105. During use, by the elongation of the electric push rod 104, the tank cover 105 is pushed to rise, and coagulant and other agents can be put into the coagulation water tank 1.

[0032] As Figure 5 shown in the figure, a filter screen part is provided in the middle section of the filter cartridge 302. A microfiltration pore membrane 303 is covered outside the filter screen part of the filter cartridge 302. During use, water permeates through the filter screen part, and the microfiltration pore membrane 303 is used to perform microfiltration treatment on the coating wastewater after coagulation to filter out the coagulated matter.

[0033] As Figure 1 shown in the figure, a first connecting pipe is fixedly connected between the input end of the pump 2 and the bottom of the coagulation water tank 1, and a second connecting pipe is fixedly connected between the output end of the pump 2 and the flange cover 301. During use, the pump 2 extracts the coating wastewater after coagulation from the coagulation water tank 1 through the first connecting pipe and inputs it into the microfiltration water tank 3 through the second connecting pipe. On the one hand, it improves the conveying efficiency of the coating wastewater, and on the other hand, it forms a pressure difference on both sides of the microfiltration pore membrane 303 to improve the filtration effect.

[0034] Specifically, when the present utility model is in use, sewage is input into the coagulation water tank 1 through the water inlet pipe at the rear side of the coagulation water tank 1. The electric push rod 104 is used to lift the tank cover 105, and an appropriate amount of coagulant and other coagulation aids are put into the coagulation water tank 1. After the input is completed, the tank cover 105 returns to its original position. At the same time, the driving motor 106 is started. The driving motor 106 drives the planet carrier 401 to rotate through the connecting shaft on the planet carrier 401. The rotation of the planet carrier 401 drives the transmission shaft 402 and the stirring blade 404 to revolve around the connecting shaft as the central axis. At the same time, the meshing of the gear 403 and the gear ring 107 is used to drive the transmission shaft 402 and the stirring blade 404 to rotate self - rotationally, improving the mixing speed of the coating wastewater and the coagulant. And during the coagulation process, the pH value and temperature in the mixing process of the coating wastewater and the coagulant are detected by the pH sensor 102 and the temperature sensor 103 and converted into electrical signals and transmitted to the external monitoring terminal. If the pH value needs to be neutralized, the neutralizing reagent can be put in again by using the telescopic action of the electric push rod. If the temperature is not enough, the temperature of the coating wastewater can be increased by using the electric heating effect of the heating wire to improve the mixing effect. At the same time, the coating wastewater in the coagulation water tank 1 is observed through the observation window 101;

[0035] After coagulation, a small flower-shaped coagulum is formed. The pump 2 extracts the coated wastewater after coagulation from the coagulation water tank 1 through the first connecting pipe and inputs it into the filter cartridge 302 through the second connecting pipe. Under the boosting effect of the pump 2, the coated wastewater permeates through the filter mesh part and is microfiltered by the microfiltration pore membrane 303 for the coated wastewater after coagulation to filter out the coagulum, and at the same time, clean water is discharged.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention.

[0037] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated coagulation and microfiltration treatment device for coating wastewater, comprising a coagulation water tank (1) for coagulation reaction of coating wastewater, a microfiltration water tank (3) for microfiltration of coating wastewater and a mounting frame (5), characterized in that: The rear side of the coagulation water tank (1) is provided with a water inlet pipe for inputting coating wastewater, the top of the microfiltration water tank (3) is provided with a box cover (105), the top of the box cover (105) is fixedly mounted with a driving motor (106), the inner wall of the box cover (105) is fixedly mounted with a gear ring (107), one end of the microfiltration water tank (3) is fixedly mounted with a flange cover (301), the end of the flange cover (301) facing the microfiltration water tank (3) is fixedly mounted with a filter cartridge (302), the coagulation water tank (1) and the microfiltration water tank (3) are both fixedly mounted on a mounting frame (5), side cover plates (501) with dense heat dissipation holes are fixedly mounted on both sides of the mounting frame (5), a control host (502) for electric control is fixedly mounted on the mounting frame (5), and the mounting frame further comprises: A stirring assembly (4) installed in the coagulation water tank (1), the stirring assembly (4) being used to stir the coating wastewater to increase the mixing speed with the coagulant, the stirring assembly (4) comprising a planetary constellation (401) and a transmission shaft (402), a connecting shaft fixedly connected to the output end of the driving motor (106) being provided at the top center of the planetary constellation (401), the transmission shaft (402) being provided with a plurality of connecting shafts which are rotatably installed on the planetary constellation (401) in an annular array, a gear (403) meshingly connected to the gear ring (107) being fixedly installed at the top of the transmission shaft (402), and a stirring blade (404) being fixedly welded to the bottom of the transmission shaft (402); A pump (2) is fixedly connected between the coagulation water tank (1) and the microfiltration water tank (3).

2. The integrated coagulation and microfiltration painting wastewater treatment device according to claim 1 is characterized by: A pH sensor (102) for detecting the pH value of the painting wastewater and a temperature sensor (103) for detecting the temperature of the painting wastewater are fixedly installed on the rear side of the coagulation water tank (1), and an electric heating wire for heating the painting wastewater is arranged inside the inner wall of the coagulation water tank (1).

3. The integrated coagulation and microfiltration painting wastewater treatment device according to claim 1 is characterized in that: The front side of the coagulation water tank (1) is provided with an observation window (101) for observing the mixing of the coating wastewater and the coagulant.

4. The integrated coagulation and microfiltration painting wastewater treatment device according to claim 1 is characterized in that: Fixed seats are fixedly installed on both sides of the coagulation water tank (1) and the tank cover (105), and an electric push rod (104) is fixedly installed between the fixed seat on the coagulation water tank (1) and the fixed seat on the tank cover (105).

5. The integrated coagulation and microfiltration painting wastewater treatment device according to claim 1 is characterized by: The middle section of the filter cartridge (302) is provided with a filter screen portion, and the outer side of the filter screen portion of the filter cartridge (302) is covered with a microfiltration membrane (303).

6. The integrated coagulation and microfiltration painting wastewater treatment device according to claim 1 is characterized by: A first connecting pipe is fixedly connected between the input end of the pump (2) and the bottom of the condensation water tank (1), and a second connecting pipe is fixedly connected between the output end of the pump (2) and the flange cover (301).

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