Melamine wastewater pretreatment device

Abstract

The utility model provides a melamine wastewater pretreatment device, which comprises a precipitation component, a coagulation component and a filter component, and compared with the prior art, the melamine wastewater pretreatment device has the following beneficial effects that by arranging the precipitation component and the coagulation component, a precipitation tank can effectively remove precipitates in wastewater and improve the clarity of the wastewater; a stirring assembly and a dosing assembly in the coagulation tank can ensure that a coagulant and wastewater are fully mixed, the coagulation effect is improved, the treatment efficiency and quality can be improved and the pretreatment effect can be improved by adopting a mode of firstly precipitating and then coagulating, and fine impurities in the wastewater can be further removed and the water quality can be improved by arranging a filtering assembly and a filtering material in the filtering tank. Meanwhile, the biological filling material can provide a growth environment for microorganisms, promote decomposition of organic matters and further purify the wastewater, at the moment, the aeration assembly is matched, dissolved oxygen in water can be increased, metabolic activity of the microorganisms is facilitated, and the pretreatment effect of the wastewater reaches an ideal effect.

Description

Technical Field

[0001] The utility model belongs to the field of wastewater pretreatment equipment, in particular to a melamine wastewater pretreatment device. Background Art

[0002] The melamine wastewater pretreatment device is a device specially used for preliminary treatment of wastewater generated in the melamine production process. The melamine wastewater uses sedimentation treatment to achieve the pretreatment effect. Although it can quickly remove larger suspended particles and part of the sediment in the wastewater, the wastewater can be initially purified to a certain extent. This helps to reduce the pressure of the subsequent treatment link and reduce the treatment cost. However, in actual use, the melamine wastewater pretreatment device still has a high concentration of impurities after the wastewater is pretreated by sedimentation, which increases the load of the subsequent treatment process and increases the treatment cost. This is because there is a lack of multi-channel pretreatment components. The lack of multi-channel pretreatment components will not only lead to the above problems, but also have unsatisfactory pretreatment effects and may affect the stability and reliability of the entire production process. Therefore, it is necessary to propose a new structure to solve the above technical problems. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a melamine wastewater pretreatment device to solve the problems raised in the above-mentioned background technology.

[0004] The utility model is realized by the following technical scheme: a melamine wastewater pretreatment device comprises: a sedimentation component, a coagulation component and a filtering component, a water outlet pipe is installed between the sedimentation component and the coagulation component, a water outlet pipe is installed between the coagulation component and the filtering component, a pump is installed on the outer surface of the water outlet pipe, the sedimentation component comprises: a sedimentation tank, a feed inlet, an observation window and a first discharge pipe, a feed inlet is installed on the upper surface of the sedimentation tank, an observation window and a first discharge pipe are installed on the outer surface of the sedimentation tank, the coagulation component comprises: a coagulation tank, a stirring component, a dosing component and a second discharge pipe, a stirring component is installed inside the coagulation tank, a dosing component and a second discharge pipe are installed on the outer surface of the coagulation tank, the filtering component comprises: a filter tank, a filter material, a biological filler, a base and an aeration component, an aeration component is arranged inside the base, and a filter tank is installed on the upper surface of the base.

[0005] As a preferred embodiment, a feed port is installed at the center of the upper surface of the sedimentation tank, the bottom inside the sedimentation tank is designed to be lower on the left and higher on the right and inclined at 25 degrees, a discharge pipe is installed at the lower left edge of the outer surface of the sedimentation tank, and an observation window is installed at the center of the front side of the outer surface of the sedimentation tank.

[0006] As a preferred embodiment, a water outlet pipe is installed on the upper right edge of the outer surface of the sedimentation tank, and the end of the water outlet pipe away from the sedimentation tank is connected to the upper left edge of the coagulation tank. The stirring assembly includes: a stirring motor, a rotating shaft and a stirring rod. The motor is installed at the center of the upper surface of the sedimentation tank, and the output shaft of the motor is installed with a rotating shaft through a coupling.

[0007] As a preferred embodiment, a plurality of stirring rods are evenly installed on the outer surface of the rotating shaft, and the rotating shaft and the stirring rods are arranged inside the coagulation tank. The bottom inside the coagulation tank is designed to be higher on the left and lower on the right and inclined at 25 degrees. A discharge pipe 2 is installed on the lower edge of the right side of the outer surface of the coagulation tank, and an outlet pipe is installed on the upper edge of the right side of the outer surface of the coagulation tank. When in use, the sedimentation tank can effectively remove sediment in the wastewater and improve the clarity of the wastewater. The stirring assembly and dosing assembly in the coagulation tank can ensure that the coagulant and the wastewater are fully mixed to improve the coagulation effect. The method of sedimentation first and then coagulation makes the treatment process more targeted, improves the treatment efficiency and quality, and enhances the effect of pretreatment.

[0008] As a preferred embodiment, the end of the outlet pipe away from the coagulation tank is connected to the upper edge of the left side of the filter tank, and the upper inner part of the filter tank is installed with filter material, which includes: a quartz sand layer and an activated carbon layer, and the quartz sand layer and the activated carbon layer are both arranged in two layers.

[0009] As a preferred embodiment, two biological fillers are symmetrically installed below the filter material, the filter tank is installed on the upper surface of the base, and the aeration component includes: an aerator and an aeration pipe. Two aerators are symmetrically installed inside the base, and the aeration end of the aerator passes through the upper surface of the base and is connected to the aeration pipe. The aeration pipe is installed at the bottom of the filter tank through the aerator, and the outer surface of the aeration pipe is evenly provided with a plurality of aeration holes;

[0010] A discharge pipe three is installed on the lower right edge of the outer surface of the filter tank. When in use, the filter material inside the filter tank can further remove fine impurities in the wastewater and improve the water quality. At the same time, the biological filler can provide a growth environment for microorganisms, promote the decomposition of organic matter, and further purify the wastewater. At this time, the aeration component can increase the dissolved oxygen in the water, which is beneficial to the metabolic activity of microorganisms, so that the pretreatment effect of the wastewater can achieve an ideal effect.

[0011] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by setting a sedimentation component and a coagulation component, the sedimentation component includes: a sedimentation tank, a feed port, an observation window and a discharge pipe one, and the coagulation component includes: a coagulation tank, a stirring component, a dosing component and a discharge pipe two. The sedimentation component and the coagulation component are connected through a water outlet pipe. When in use, the sedimentation tank can effectively remove the sediment in the wastewater and improve the clarity of the wastewater. The stirring component and the dosing component in the coagulation tank can ensure that the coagulant and the wastewater are fully mixed, and the coagulation effect is improved. The method of sedimentation first and then coagulation makes the treatment process more targeted, improves the treatment efficiency and quality, and enhances the effect of pretreatment.

[0012] By setting up a filter component, the filter component includes: a filter tank, filter material, biological filler, a base and an aeration component. An outlet pipe is installed between the filter component and the coagulation component. When in use, the filter material inside the filter tank can further remove fine impurities in the wastewater and improve the water quality. At the same time, the biological filler can provide a growth environment for microorganisms, promote the decomposition of organic matter, and further purify the wastewater. At this time, the aeration component can increase the dissolved oxygen in the water, which is beneficial to the metabolic activities of microorganisms, so that the pretreatment effect of the wastewater can achieve an ideal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a melamine wastewater pretreatment device.

[0015] Figure 2 It is a schematic diagram of a precipitation component of a melamine wastewater pretreatment device of the utility model.

[0016] Figure 3 It is a schematic diagram of a coagulation component of a melamine wastewater pretreatment device of the utility model.

[0017] Figure 4 It is a schematic diagram of a filtering component of a melamine wastewater pretreatment device of the utility model.

[0018] In the figure, 100-precipitation assembly, 110-precipitation tank, 120-feeding port, 130-observation window, 140-discharging pipe 1;

[0019] 200-coagulation component, 210-coagulation tank, 220-stirring component, 230-dosing component, 240-discharging pipe 2;

[0020] 300-filter assembly, 310-filter tank, 320-filter material, 330-biological filler, 340-base, 350-aerator, 360-aeration pipe, 370-discharge pipe three;

[0021] 400-water outlet pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a melamine wastewater pretreatment device, comprising: a sedimentation component 100, a coagulation component 200 and a filtering component 300, an outlet pipe 400 is installed between the sedimentation component 100 and the coagulation component 200, an outlet pipe 400 is installed between the coagulation component 200 and the filtering component 300, and a pump is installed on the outer surface of the outlet pipe 400. The sedimentation component 100 comprises: a sedimentation tank 110, a feed inlet, an observation window 130 and a discharge pipe 140, a feed inlet is installed on the upper surface of the sedimentation tank 110, and the outer surface of the sedimentation tank 110 is provided with a pump. An observation window 130 and a discharge pipe 140 are installed on the surface. The coagulation component 200 includes: a coagulation tank 210, a stirring component 220, a dosing component 230 and a discharge pipe 240. The stirring component 220 is installed inside the coagulation tank 210, and the dosing component 230 and the discharge pipe 240 are installed on the outer surface of the coagulation tank 210. The filter component 300 includes: a filter tank 310, a filter material 320, a biological filler 330, a base 340 and an aeration component. The aeration component is arranged inside the base 340, and the filter tank 310 is installed on the upper surface of the base 340.

[0024] See also Figures 1 to 4 As the first embodiment of the utility model: a feed port is installed at the center of the upper surface of the sedimentation tank 110, the bottom of the sedimentation tank 110 is designed to be lower on the left and higher on the right and inclined at 25 degrees, a discharge pipe 140 is installed at the lower edge of the left side of the outer surface of the sedimentation tank 110, and an observation window 130 is installed at the center of the front side of the outer surface of the sedimentation tank 110;

[0025] An outlet pipe 400 is installed on the upper right edge of the outer surface of the sedimentation tank 110, and one end of the outlet pipe 400 away from the sedimentation tank 110 is connected to the upper left edge of the coagulation tank 210. The stirring assembly 220 includes: a stirring motor, a rotating shaft and a stirring rod. The motor is installed at the center of the upper surface of the sedimentation tank 110, and the output shaft of the motor is installed with the rotating shaft through a coupling;

[0026] A plurality of stirring rods are evenly installed on the outer surface of the rotating shaft, and the rotating shaft and the stirring rods are arranged inside the coagulation tank 210. The bottom of the coagulation tank 210 is designed to be high on the left and low on the right and inclined at 25 degrees. A discharge pipe 240 is installed on the lower right edge of the outer surface of the coagulation tank 210, and a water outlet pipe 400 is installed on the upper right edge of the outer surface of the coagulation tank 210.

[0027] When in use, the user first feeds the melamine wastewater that needs to be pretreated into the sedimentation tank 110 through the feeding port 120. After the melamine wastewater is fed into the sedimentation tank 110, wait for a period of time (the time is selected according to the actual situation). At this time, the user can observe the sedimentation of the melamine wastewater in the sedimentation tank 110 through the observation window 130. After the sedimentation is completed, the user can start the pump on the outer surface of the water outlet pipe 400 between the sedimentation tank 110 and the coagulation tank 210 (the water outlet pipe is higher than the height of the impurities precipitated in the sedimentation tank 110 to avoid the water outlet pipe 400 from 00 pumps impurities into the coagulation tank 210), pumps the precipitated melamine wastewater in the sedimentation tank 110 into the coagulation tank 210 for coagulation treatment. After the precipitated melamine wastewater in the sedimentation tank 110 is pumped into the coagulation tank 210, the user can open the valve on the outer surface of the discharge pipe 140 to discharge the precipitated melamine wastewater impurities at the bottom of the sedimentation tank 110 for collection and subsequent treatment. At this time, the melamine wastewater enters the coagulation tank 210, and the user first uses the dosing component 230 (dosing tank) to put the mixed After the coagulant is added into the coagulant tank 210 through the dosing component 230, the user can start the stirring motor on the upper surface of the coagulant tank 210 to make the output shaft of the stirring motor drive the rotating shaft and the stirring rod to rotate, so that the melamine wastewater and the coagulant are fully mixed to achieve the effect of pretreatment of the melamine wastewater by the coagulant. After the mixing is completed, the user stops the stirring motor and waits for a while. The coagulated impurity flocs are allowed to settle to the bottom of the coagulation tank 210. After the sedimentation is completed, the user can pump the melamine wastewater in the coagulation tank 210 into the filter tank 310 for subsequent treatment according to the same operating steps and principles as mentioned above. The sedimentation tank 110 can effectively remove the sediment in the wastewater and improve the clarity of the wastewater. The stirring component 220 and the dosing component 230 in the coagulation tank 210 can ensure that the coagulant is fully mixed with the wastewater and improve the coagulation effect. The method of sedimentation first and then coagulation makes the treatment process more targeted, improves the treatment efficiency and quality, and enhances the effect of pretreatment.

[0028] See also Figures 1 to 4 As the second embodiment of the utility model: the end of the water outlet pipe 400 away from the coagulation tank 210 is connected to the upper edge of the left side of the filter tank 310, and the filter material 320 is installed in the upper part of the inner part of the filter tank 310. The filter material 320 includes: a quartz sand layer and an activated carbon layer, and the quartz sand layer and the activated carbon layer are both provided with two layers;

[0029] Two biological fillers 330 are symmetrically installed below the filter material 320, and the filter tank 310 is installed on the upper surface of the base 340. The aeration assembly includes: an aerator 350 and an aeration pipe 360. Two aerators 350 are symmetrically installed inside the base 340. The aeration end of the aerator 350 penetrates the upper surface of the base 340 and is connected to the aeration pipe 360. The aeration pipe 360 ​​is installed at the bottom of the filter tank 310 through the aerator 350. The outer surface of the aeration pipe 360 ​​is evenly provided with multiple aeration holes.

[0030] A discharge pipe 370 is installed at the lower right edge of the outer surface of the filter tank 310;

[0031] During use, when the melamine wastewater enters the filter tank 310 through the outlet pipe 400, it will first pass through the filter material 320 (activated carbon and quartz sand, the front surface of the filter tank 310 is sealed and hinged with a door panel. After using it for a period of time, the user can replace or clean the filter material 320 inside the filter tank 310 by opening the door panel to avoid the failure of the filtering effect). After the melamine wastewater passes through the filter material 320, it will be filtered again to ensure the effect of the pretreatment. At this time, the melamine wastewater will fall to the bottom of the filter tank 310 through the filter material 320. At this time, the user can start the aerator 350 to make the aerator 350 work (the aerator 350 is a prior art, and its working principle and structure are not described in detail here). Then, the aerator 350 During operation, the aeration holes of the aeration pipe 360 ​​generate gas, and the melamine wastewater will contact the biological filler 330 inside the filter tank 310. The generated gas and the biological filler 330 can be used to further pretreat the melamine wastewater. After the pretreatment is completed, the user can discharge the melamine wastewater through the discharge pipe 370, and then carry out subsequent fine treatment (such as disinfection, membrane filtration, etc.). The filter material 320 inside the filter tank 310 can further remove fine impurities in the wastewater and improve the water quality. At the same time, the biological filler 330 can provide a growth environment for microorganisms, promote the decomposition of organic matter, and further purify the wastewater. At this time, the aeration component can increase the dissolved oxygen in the water, which is beneficial to the metabolic activities of microorganisms, so that the pretreatment effect of the wastewater can achieve an ideal effect.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A melamine wastewater pretreatment device, comprising: A sedimentation component (100), a coagulation component (200) and a filtration component (300), characterized in that a water outlet pipe (400) is installed between the sedimentation component (100) and the coagulation component (200), a water outlet pipe (400) is installed between the coagulation component (200) and the filtration component (300), and a pump is installed on the outer surface of the water outlet pipe (400); The precipitation component (100) comprises: a precipitation tank (110), a feed port (120), an observation window (130) and a first discharge pipe (140); the feed port (120) is installed on the upper surface of the precipitation tank (110); the observation window (130) and the first discharge pipe (140) are installed on the outer surface of the precipitation tank (110); the coagulation component (200) comprises: a coagulation tank (210), a stirring component (220), a dosing component (230) and a second discharge pipe (240); The coagulation tank (210) is internally installed with a stirring assembly (220), the outer surface of the coagulation tank (210) is installed with a dosing assembly (230) and a discharge pipe 2 (240), the filtering assembly (300) comprises: a filtering tank (310), a filter material (320), a biological filler (330), a base (340) and an aeration assembly, the base (340) is internally provided with an aeration assembly, and the filtering tank (310) is installed on the upper surface of the base (340).

2. A melamine wastewater pretreatment device as claimed in claim 1, characterized in that: A feed port (120) is installed at the center of the upper surface of the sedimentation tank (110); the bottom of the sedimentation tank (110) is designed to be lower on the left and higher on the right and inclined at 25 degrees; a discharge pipe (140) is installed at the lower edge of the left side of the outer surface of the sedimentation tank (110); and an observation window (130) is installed at the center of the front side of the outer surface of the sedimentation tank (110).

3. A melamine wastewater pretreatment device as claimed in claim 2, characterized in that: A water outlet pipe (400) is installed on the upper right edge of the outer surface of the sedimentation tank (110), and one end of the water outlet pipe (400) away from the sedimentation tank (110) is connected to the upper left edge of the coagulation tank (210). The stirring assembly (220) includes: a stirring motor, a rotating shaft and a stirring rod. A motor is installed at the center of the upper surface of the sedimentation tank (110), and the output shaft of the motor is installed with a rotating shaft through a coupling.

4. A melamine wastewater pretreatment device as claimed in claim 3, characterized in that: A plurality of stirring rods are evenly mounted on the outer surface of the rotating shaft. The rotating shaft and the stirring rods are arranged inside the coagulation tank (210). The bottom of the coagulation tank (210) is designed to be higher on the left and lower on the right and inclined at 25 degrees. A discharge pipe 2 (240) is mounted on the lower right edge of the outer surface of the coagulation tank (210), and a water outlet pipe (400) is mounted on the upper right edge of the outer surface of the coagulation tank (210).

5. A melamine wastewater pretreatment device as claimed in claim 4, characterized in that: One end of the water outlet pipe (400) away from the coagulation tank (210) is connected to the upper left edge of the filter tank (310), and a filter material (320) is installed in the upper inner part of the filter tank (310). The filter material (320) includes: a quartz sand layer and an activated carbon layer, and the quartz sand layer and the activated carbon layer are both provided with two layers.

6. A melamine wastewater pretreatment device as claimed in claim 1, characterized in that: Two biological fillers (330) are symmetrically installed below the filter material (320); the filter tank (310) is installed on the upper surface of the base (340); the aeration component comprises: an aerator (350) and an aeration pipe (360); two aerators (350) are symmetrically installed inside the base (340); an aeration end of the aerator (350) passes through the upper surface of the base (340) and is connected to the aeration pipe (360); the aeration pipe (360) is installed at the bottom of the filter tank (310) through the aerator (350); and a plurality of aeration holes are evenly arranged on the outer surface of the aeration pipe (360); A discharge pipe three (370) is installed on the lower right edge of the outer surface of the filter tank (310).

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