Automatic feeding device for polylactic acid denitrification solid carbon source

Abstract

The utility model discloses an automatic adding device for a polylactic acid denitrification solid carbon source. The automatic adding device comprises a sewage tank, a carbon source storage tank and a power assembly, a collection hopper is arranged at the lower end of the carbon source storage tank, and a feeding pipe penetrating through the sewage tank is arranged at the lower end of the collection hopper; the power assembly comprises an intermittent motor arranged on the sewage tank and a movable baffle which is clamped on the sewage tank in a sliding manner and penetrates through the feeding pipe; a blanking hole matched with the inner cavity of the feeding pipe is formed in the movable baffle plate; an eccentric disc is arranged on an output shaft of the intermittent motor, and a pushing arm movably hinged to the movable baffle is rotationally connected to the eccentric disc in a clamped mode. The device is reasonable in structural design, effectively improves the feeding efficiency and the acting effect of the polylactic acid denitrification solid carbon source, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to an automatic dosing device for a polylactic acid denitrification solid carbon source. Background Art

[0002] The excessively high concentration of nitrate-nitrogen in the effluent from biological treatment of sewage is a common problem in the current water treatment field. The main reason is that insufficient carbon sources limit the denitrification process. At present, the addition of carbon sources is the most extensive and effective means of removing nitrate-nitrogen. External carbon sources include water-soluble carbon sources and solid carbon sources. Water-soluble carbon sources are more widely used, including acetic acid, methanol and glucose; solid carbon sources are biodegradable materials that are difficult to dissolve in water, and common ones are polymers such as poly-β-hydroxybutyric acid (PHB) and polybutylene succinate (PBS). Water-soluble carbon sources and solid carbon sources each have their own advantages and disadvantages in practical applications. Water-soluble carbon sources are easy to obtain and easily utilized by microorganisms, and have obvious denitrification effects. However, the amount of carbon source added is not easy to control. Too little addition cannot achieve the denitrification effect, and too much addition will lead to excessive organic matter in the effluent. Compared with water-soluble carbon sources, solid carbon sources have a slow-release function, and there is no problem of excessive carbon source addition. They can also act as fillers to promote the growth of biofilms. However, due to their relatively high cost, their application in practical engineering is seriously affected.

[0003] At present, in the process of treating high-concentration organic wastewater, the method of manually adding solid carbon sources is mostly adopted, which is time-consuming, labor-intensive and labor-intensive. Moreover, the solid carbon source is very easy to stay on the surface of the wastewater during the addition process, thus affecting the wastewater treatment effect. Utility Model Content

[0004] In view of the above-mentioned technical problems, the utility model provides a polylactic acid denitrification solid carbon source automatic dosing device.

[0005] The technical scheme of the utility model is: a polylactic acid denitrification solid carbon source automatic dosing device, comprising a sewage tank, a carbon source storage tank arranged at the top of the sewage tank and a power component arranged at the top of the sewage tank; an inlet pipe is arranged at the upper end of one side of the sewage tank, a drain pipe is arranged at the lower end of the other side, and a cover plate is movably connected to the top of the sewage tank;

[0006] The carbon source storage tank is arranged on the cover plate through a support rod, a collecting hopper is arranged at the lower end of the carbon source storage tank, and a dosing pipe penetrating the cover plate is arranged at the lower end of the collecting hopper; an end cap is movably connected to the top of the carbon source storage tank;

[0007] The power assembly includes an intermittent motor arranged on the cover plate and a movable baffle which is slidably clamped on the cover plate and passes through the dosing pipe; a drop hole which is adapted to the inner cavity of the dosing pipe is arranged on the movable baffle; an eccentric disk is arranged on the output shaft of the intermittent motor, and a pushing arm which is movably hinged to the movable baffle and is rotatably clamped on the eccentric disk.

[0008] Furthermore, an adjusting plate is slidably engaged inside the blanking hole, and an end of the movable baffle away from the intermittent motor is threadedly connected to an adjusting screw that is rotatably engaged with the adjusting plate;

[0009] Description: By using the adjusting screw to push the adjusting plate to move inside the blanking hole, the size of the blanking hole can be adjusted, so that the amount of carbon source added can be adjusted in a fixed time.

[0010] Furthermore, a number of vibration plates are evenly distributed on the inner wall of the collecting hopper, a damping spring is arranged between each vibration plate and the inner wall of the collecting hopper, and a push rod is slidably clamped on the collecting hopper at positions corresponding to the positions of each vibration plate; a driving disk is rotatably clamped on the outer wall of the collecting hopper, a ball head which can respectively abut against each push rod is arranged on the inner wall of the driving disk, and a gear ring is arranged on the lower bottom surface of the driving disk; a first bevel gear is sleeved on the output shaft of the intermittent motor; a connecting shaft is rotatably clamped on the cover plate, a second bevel gear meshingly connected to the first bevel gear is arranged at one end of the connecting shaft, and a third bevel gear meshingly connected to the gear ring is arranged at the other end;

[0011] Description: When the intermittent motor is running, the first bevel gear is used to drive the second bevel gear and the third bevel gear to rotate, so that the driving disc rotates outside the collecting hopper. During the rotation of the driving disc, the ball head is used to continuously hit the top rod, so that each vibration plate vibrates under the action of the damping spring, thereby improving the continuity of the addition of fixed carbon source inside the carbon source storage tank.

[0012] Furthermore, the bottom end of the dosing pipe is connected to an extension pipe through a telescopic hose, and a lifting bracket connected to the extension pipe is slidably connected inside the sewage tank; a telescopic rod connected to the lifting bracket is provided on the bottom surface of the cover plate, and a cylinder providing power for the telescopic rod is provided on the upper surface of the cover plate;

[0013] Description: Use the telescopic rod to push the lifting bracket to move up and down inside the sewage tank, so that the fixed carbon source injected from the extension tube can reach different areas inside the sewage tank, thereby increasing the reaction rate between the fixed spring and the sewage.

[0014] Furthermore, a plurality of dispersion tubes are scattered at the bottom of the extension tube, a feeding nozzle is provided on the bottom surface of each dispersion tube, and a spiral material guide is rotatably connected inside each dispersion tube;

[0015] Note: By setting up a dispersion pipe and using a spiral guide to disperse the fixed carbon source into the sewage through various feeding nozzles, it is beneficial to increase the contact rate between the fixed carbon source and the sewage.

[0016] Furthermore, an observation window is provided on the side wall of the carbon source storage tank;

[0017] Note: By setting up an observation window, it is convenient to observe the remaining amount of fixed carbon source inside the carbon source storage tank in real time to ensure the reliability of the device.

[0018] The working method of the utility model is as follows:

[0019] When in use, the polylactic acid denitrification solid carbon source is put into the carbon source storage tank, and the sewage to be treated is passed into the sewage tank through the water inlet pipe; the intermittent motor is started, and the eccentric disk is driven to rotate by the intermittent motor, so that the movable baffle moves back and forth along the cover plate under the action of the pushing arm, and when the drop hole on the movable baffle is connected with the dosing pipe, the polylactic acid denitrification solid carbon source enters the sewage through the dosing pipe to provide energy for the growth and division of microorganisms.

[0020] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0021] First, the utility model has a reasonable structural design, and utilizes an intermittent motor to drive the mobile baffle to reciprocate, thereby realizing the intermittent automatic addition of the solid carbon source for lactic acid denitrification, and reducing the labor intensity of manually adding the fixed spring; at the same time, an adjustment plate is arranged on the mobile baffle, which can adjust the addition amount of the fixed carbon source, and improves the use flexibility of the device;

[0022] Second, the utility model uses an extension pipe and a dispersion pipe that can move up and down inside the sewage tank to quantitatively add a fixed carbon source to each area inside the sewage tank, so that the fixed carbon source can be evenly dispersed in each area of ​​the wastewater, thereby increasing the reaction rate of the fixed carbon source and the wastewater;

[0023] Thirdly, the utility model can prevent the fixed carbon source from accumulating inside the collecting hopper by arranging a vibration plate in the collecting hopper, thereby improving the continuity of adding the fixed carbon source and improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a longitudinal section view of the utility model;

[0025] Figure 2 It is the front view of the utility model;

[0026] Figure 3 It is a schematic diagram of the connection between the movable baffle and the dosing pipe of the utility model;

[0027] Figure 4 It is a schematic diagram of the connection between the driving disk and the vibration plate of the utility model;

[0028] Figure 5 It is a distribution diagram of the vibrating plate of the utility model inside the collecting hopper;

[0029] Figure 6 It is a schematic diagram of the connection between the dispersion pipe and the extension pipe of the utility model;

[0030] Among them, 1-sewage tank, 10-water inlet pipe, 11-drain pipe, 12-cover plate, 2-carbon source storage tank, 20-collecting hopper, 200-support rod, 201-observation window, 21-dosing pipe, 22-end cover, 23-vibration plate, 230-damping spring, 231-top rod, 24-driving disk, 240-ball head, 241-gear ring, 25-connecting shaft, 250-second bevel gear, 251-third bevel gear, 3-power assembly, 30-intermittent motor, 300-eccentric disk, 301-first bevel gear, 31-movable baffle, 310-dropping hole, 311-adjusting plate, 312-adjusting screw, 32-pushing arm, 4-extension tube, 40-telescopic hose, 41-lifting bracket, 42-telescopic rod, 43-cylinder, 44-dispersion pipe, 440-feeding nozzle, 45-screw guide. DETAILED DESCRIPTION

[0031] Example 1

[0032] like Figure 1 The polylactic acid denitrification solid carbon source automatic dosing device shown comprises a sewage tank 1, a carbon source storage tank 2 arranged at the top of the sewage tank 1, and a power assembly 3 arranged at the top of the sewage tank 1; an inlet pipe 10 is arranged at the upper end of one side of the sewage tank 1, a drain pipe 11 is arranged at the lower end of the other side, and a cover plate 12 is movably connected to the top of the sewage tank 1;

[0033] like Figure 1 , 2 As shown, the carbon source storage tank 2 is arranged on the cover plate 12 through the support rod 200, a collecting hopper 20 is arranged at the lower end of the carbon source storage tank 2, and a dosing pipe 21 penetrating the cover plate 12 is arranged at the lower end of the collecting hopper 20; an end cap 22 is movably connected to the top of the carbon source storage tank 2;

[0034] like Figure 1 , 2 As shown in , 3, the power assembly 3 includes an intermittent motor 30 arranged on the cover plate 12 and a movable baffle 31 which is slidably connected to the cover plate 12 and passes through the dosing pipe 21; the movable baffle 31 is provided with a drop hole 310 adapted to the inner cavity of the dosing pipe 21; an eccentric disk 300 is provided on the output shaft of the intermittent motor 30, and a pushing arm 32 which is rotatably connected to the movable baffle 31 and is movably hinged.

[0035] Example 2

[0036] The difference between this embodiment and embodiment 1 is that:

[0037] like Figure 3 As shown, an adjusting plate 311 is slidably engaged inside the blanking hole 310 , and an end of the movable baffle 31 away from the intermittent motor 30 is threadedly connected to an adjusting screw 312 that is rotatably engaged with the adjusting plate 311 .

[0038] Example 4

[0039] The difference between this embodiment and embodiment 3 is that:

[0040] like Figure 3 , 4 As shown in Figure 5, eight vibration plates 23 are evenly distributed on the inner wall of the collecting hopper 20, a damping spring 230 is arranged between each vibration plate 23 and the inner wall of the collecting hopper 20, and a push rod 231 is slidably clamped on the collecting hopper 20 and at the position corresponding to each vibration plate 23; a driving disk 24 is rotatably clamped on the outer wall of the collecting hopper 20, a ball head 240 that can respectively abut against each push rod 231 is arranged on the inner wall of the driving disk 24, and a gear ring 241 is arranged on the lower bottom surface of the driving disk 24; a first bevel gear 301 is sleeved on the output shaft of the intermittent motor 30; a connecting shaft 25 is rotatably clamped on the cover plate 12, one end of the connecting shaft 25 is provided with a second bevel gear 250 meshingly connected to the first bevel gear 301, and the other end is provided with a third bevel gear 251 meshingly connected to the gear ring 241.

[0041] Example 5

[0042] The difference between this embodiment and embodiment 4 is that:

[0043] like Figure 1 , 6 As shown, the bottom end of the dosing pipe 21 is connected to the extension pipe 4 through a telescopic hose 40, and a lifting bracket 41 connected to the extension pipe 4 is slidably clamped inside the sewage tank 1; a telescopic rod 42 connected to the lifting bracket 41 is provided on the lower bottom surface of the cover plate 12, and a cylinder 43 for providing power to the telescopic rod 42 is provided on the upper end surface of the cover plate 12; four dispersion pipes 44 are scattered at the bottom end of the extension pipe 4, and a feeding nozzle 440 is provided on the lower bottom surface of each dispersion pipe 44, and a spiral material guide 45 is rotatably clamped inside each dispersion pipe 44.

[0044] Example 6

[0045] The difference between this embodiment and embodiment 5 is that:

[0046] like Figure 2 As shown, an observation window 201 is provided on the side wall of the carbon source storage tank 2 .

[0047] It should be noted that the intermittent motor 30, the cylinder 43 and the spiral guide 45 used in the present invention all adopt the existing technology, and no special limitation is made here. The corresponding products can be selected according to actual needs.

Claims

1. A polylactic acid denitrification solid carbon source automatic dosing device, characterized in that: It comprises a sewage tank (1), a carbon source storage tank (2) arranged at the top of the sewage tank (1), and a power assembly (3) arranged at the top of the sewage tank (1); an inlet pipe (10) is arranged at the upper end of one side of the sewage tank (1), a drain pipe (11) is arranged at the lower end of the other side, and a cover plate (12) is movably connected to the top of the sewage tank (1); The carbon source storage tank (2) is arranged on the cover plate (12) via a support rod (200); a collecting hopper (20) is arranged at the lower end of the carbon source storage tank (2); a dosing pipe (21) penetrating the cover plate (12) is arranged at the lower end of the collecting hopper (20); an end cover (22) is movably clamped at the top end of the carbon source storage tank (2); The power assembly (3) comprises an intermittent motor (30) arranged on the cover plate (12) and a movable baffle (31) slidably clamped on the cover plate (12) and penetrating the dosing pipe (21); the movable baffle (31) is provided with a drop hole (310) adapted to the inner cavity of the dosing pipe (21); an eccentric disk (300) is provided on the output shaft of the intermittent motor (30), and a pushing arm (32) movably hinged to the movable baffle (31) is rotatably clamped on the eccentric disk (300).

2. The automatic dosing device for denitrification solid carbon source of polylactic acid according to claim 1, characterized in that: An adjusting plate (311) is slidably engaged inside the blanking hole (310), and an end of the movable baffle (31) away from the intermittent motor (30) is threadedly connected to an adjusting screw (312) rotatably engaged with the adjusting plate (311).

3. The automatic dosing device for denitrification solid carbon source of polylactic acid according to claim 1, characterized in that: A plurality of vibration plates (23) are evenly distributed on the inner wall of the collecting hopper (20), a damping spring (230) is arranged between each vibration plate (23) and the inner wall of the collecting hopper (20), and a push rod (231) is slidably engaged with each vibration plate (23) on the collecting hopper (20); a driving disk (24) is rotatably engaged with the outer wall of the collecting hopper (20), and a spring that can engage with each push rod (231) is arranged on the inner wall of the driving disk (24). The intermittent motor (30) is provided with a first bevel gear (301) on its output shaft; a connecting shaft (25) is rotatably connected to the cover plate (12); one end of the connecting shaft (25) is provided with a second bevel gear (250) meshingly connected to the first bevel gear (301); and the other end of the connecting shaft (25) is provided with a third bevel gear (251) meshingly connected to the ring gear (241).

4. The automatic dosing device for denitrification solid carbon source of polylactic acid according to claim 1, characterized in that: The bottom end of the dosing pipe (21) is connected to an extension pipe (4) via a telescopic hose (40); a lifting bracket (41) connected to the extension pipe (4) is slidably engaged inside the sewage tank (1); a telescopic rod (42) connected to the lifting bracket (41) is arranged on the bottom surface of the cover plate (12); and a cylinder (43) for providing power to the telescopic rod (42) is arranged on the upper end surface of the cover plate (12).

5. The automatic dosing device for denitrification solid carbon source of polylactic acid according to claim 4, characterized in that: The bottom end of the extension tube (4) is provided with a plurality of dispersion tubes (44) in a scattered manner, the bottom surface of each dispersion tube (44) is provided with a feeding nozzle (440), and a spiral material guide (45) is rotatably connected inside each dispersion tube (44).

6. The automatic dosing device for denitrification solid carbon source of polylactic acid according to claim 1, characterized in that: An observation window (201) is provided on the side wall of the carbon source storage tank (2).

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