Dissolved air flotation type landfill leachate device

Abstract

The utility model discloses a dissolved air flotation type landfill leachate device which comprises a mixing tank, rotating shafts are rotatably arranged in the mixing tank and located on the upper side and the lower side, stirring blades are arranged on the outer walls of the rotating shafts and located in the mixing tank, one ends of the rotating shafts penetrate through the mixing tank and are provided with belt wheels, and the other ends of the rotating shafts penetrate through the mixing tank. A belt is arranged between the two belt wheels, a first motor is arranged on the outer wall of the mixing tank, the output end of the first motor is fixedly connected with the rotating shaft, a treatment tank is arranged on the outer wall of the mixing tank, and an overflow pipe is arranged at the upper end of the outer wall of the mixing tank; according to the device, the dosing hopper is arranged in the mixing tank, so that a user can add a flocculating agent into the mixing tank through the dosing hopper so as to make the flocculating agent contact with the landfill leachate, and meanwhile, a first motor is started to drive a rotating shaft to drive stirring blades to rotate, so that the effect of stirring the flocculating agent and the landfill leachate is achieved, impurities in the flocculating agent and the landfill leachate are more thoroughly condensed, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage leachate treatment technical field more specifically, it relates to a dissolved air floatation type garbage leachate device. BACKGROUND

[0002] Garbage leachate is a kind of liquid produced in landfill, it is formed in the process that garbage is piled up and decomposed, through the scouring of rainwater, the decomposition of garbage itself and the soaking of surface water and underground water, because its internal impurity composition is complex, therefore need to use dissolved air floatation type treatment device to carry out purification treatment to garbage leachate, dissolved air floatation type purification equipment is mainly used in wastewater treatment, solid-liquid separation etc., mainly by the air or oxygen in the air dissolving tank is pressed into water by air dissolving pump, and the air bubble is released by releaser, so that the air bubble pushes the impurities in wastewater to the water surface position, finally the impurities are discharged into sludge bin by scraper, realize the effect of purification.

[0003] Before the purification of garbage leachate, flocculant is added to water first, so that the impurities in it gather into large flocculent, but after flocculant is added to wastewater, reagent cannot fully contact with impurities in wastewater, so that impurities are not completely coagulated, influence the purification effect of subsequent garbage leachate.

[0004] And the surface of scraper is inevitably adhered with a large amount of impurities during long-term use, if not cleaned in time, it will cause corrosion to scraper, because the existing scraper and screw sleeve are fixedly installed, so it cannot be disassembled and cleaned at will. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the problems in the prior art, the utility model provides a dissolved air floatation type garbage leachate device to solve the technical problem that reagent cannot fully contact with impurities in wastewater after flocculant is added to wastewater, so that impurities are not completely coagulated, influence the purification effect of subsequent garbage leachate.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a kind of dissolved air floatation type landfill leachate device, including mixing pool, the inside of the mixing pool and the rotation of upper and lower sides are equipped with rotating shaft, the outer wall of the rotating shaft and the inside of mixing pool are equipped with stirring vane, one end of the rotating shaft passes through mixing pool and is equipped with pulley, belt is equipped between two pulleys, the outer wall of the mixing pool is equipped with first motor, the output of the first motor is fixedly connected with rotating shaft, the outer wall of the mixing pool is equipped with treatment pool, the outer wall of the mixing pool and the upper end are equipped with overflow pipe, the overflow pipe is located at the side of treatment pool, the upper end surface of the mixing pool is equipped with dosing hopper, the side of the dosing hopper and the upper end surface of the mixing pool are equipped with water pipe, overflow plate is equipped in the middle position of the treatment pool, and the overflow plate divides the treatment pool into dissolved air zone and air floatation zone.

[0009] The utility model further sets up, the inside of the air floatation zone and the rotation of both sides are equipped with conveying shaft, one end of the conveying shaft is equipped with second motor, the outer wall of the conveying shaft is equipped with transmission belt, the outer wall of the transmission belt is equipped with mounting shell, the mounting shell is equipped with multiple and is evenly distributed, the inside of the mounting shell is movably equipped with scraper, the bottom of the mounting shell and scraper is equipped with jack, the inside of the jack is slidably equipped with inserting rod, and it is convenient to scrape out dross.

[0010] The utility model further sets up, one end of the inserting rod is equipped with limit block, the limit block is in contact with the outer wall of mounting shell, the other end of the inserting rod is equipped with fastening nut, the inner wall of the fastening nut is in contact with the side surface of mounting shell, and it is convenient to disassemble and clean the scraper.

[0011] The utility model further sets up, one end of the inserting rod is equipped with limit block, the limit block is in contact with the outer wall of mounting shell, the other end of the inserting rod is equipped with fastening nut, the inner wall of the fastening nut is in contact with the side surface of mounting shell, and it is convenient to disassemble and clean the scraper.

[0012] The utility model further sets up, the bottom of the treatment pool and the lower end of dross bin are fixedly equipped with discharge pipe, the connecting position of the discharge pipe and treatment pool is equipped with filter screen, the other end of the discharge pipe is equipped with water storage box, the water storage box is located the lower end of leakage hole, and it is convenient to filter water after purification again.

[0013] The utility model further sets up, the discharge pipe is equipped with valve, and it is convenient to discharge water after purification.

[0014] The utility model further sets up, the bottom of the dissolved air zone is equipped with releaser, the outside end of the treatment pool is equipped with dissolved air pump, the dissolved air pump is communicated with releaser, and it is convenient to generate air bubble in dissolved air zone.

[0015] The bottom of the dosing funnel is provided with a control valve, so as to facilitate the flocculant to enter the mixing pool.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a kind of dissolved air floatation type garbage leachate device, with following beneficial effects:

[0018] 1, by setting rotating shaft, stirring vane and first motor, so that user can add flocculant to mixing pool by dosing funnel, to make it contact with garbage leachate, simultaneously open first motor to make rotating shaft drive stirring vane to rotate, to realize the effect of stirring flocculant and garbage leachate, facilitate to make the impurity inside more thorough condensation, convenient to use.

[0019] 2, by setting conveying shaft, transmission belt and scraper, so that user can rotate scraper by opening second motor to drive transmission belt, to scrape the impurities on the surface of gas floatation zone to treatment pool, and user can also remove fastening nut to take out insert rod from the inside of insertion hole, to disassemble scraper, convenient to clean, by this design, the adhering objects on the surface of scraper can be cleaned regularly, increase service life.

[0020] 3, by setting slag outlet, dross bin, water leakage hole and water storage box, so that the dross scraped will enter dross bin through slag outlet, at this time, the excess moisture on dross will enter water storage box through water leakage hole, after treatment, open valve to make the water in treatment pool enter water storage box through discharge pipe, simultaneously, filter screen also filters water, to make purification effect better. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a kind of whole schematic diagram of dissolved air floatation type garbage leachate device in non-use state;

[0022] Figure 2 It is the installation position schematic diagram of parts inside mixing pool and treatment pool;

[0023] Figure 3 It is the installation explosion drawing of installation shell, scraper, insert rod and fastening nut on transmission belt;

[0024] Figure 4 It is the position schematic diagram of treatment pool on mixing pool, discharge pipe, water storage box and valve;

[0025] Figure 5 It is the installation schematic diagram of filter screen, water storage box and valve on discharge pipe.

[0026] In the figure: 1, mixing pool; 2, rotating shaft; 3, stirring blade; 4, pulley; 5, belt; 6, first motor; 7, processing pool; 8, overflow pipe; 9, dosing funnel; 10, water adding pipe; 11, overflow plate; 12, conveying shaft; 13, transmission belt; 14, mounting shell; 15, scraper; 16, insertion hole; 17, insertion rod; 18, limiting block; 19, fastening nut; 20, slag outlet; 21, scum bin; 22, water leakage hole; 23, discharge pipe; 24, filter screen; 25, water storage box; 26, valve; 27, releaser; 28, dissolved air pump; 29, control valve. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0029] In the present application, unless otherwise stated, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0030] Please refer to Figures 1-5 A dissolved air flotation type landfill leachate device, comprising a mixing pool 1, rotating shafts 2 are arranged in the interior of the mixing pool 1 and at both upper and lower sides, stirring blades 3 are arranged on the outer walls of the rotating shafts 2 and in the interior of the mixing pool 1, pulleys 4 are arranged at one end of the rotating shafts 2 and penetrating through the mixing pool 1, a belt 5 is arranged between the two pulleys 4, a first motor 6 is arranged on the outer wall of the mixing pool 1, the output end of the first motor 6 is fixedly connected with the rotating shaft 2, a processing pool 7 is arranged on the outer wall of the mixing pool 1, an overflow pipe 8 is arranged on the upper end of the outer wall of the mixing pool 1 and at the upper end, the overflow pipe 8 is located at one side of the processing pool 7, a dosing funnel 9 is arranged on the upper end surface of the mixing pool 1, a water adding pipe 10 is arranged at one side of the dosing funnel 9 and on the upper end surface of the mixing pool 1, an overflow plate 11 is arranged at the middle position of the processing pool 7, the overflow plate 11 divides the processing pool 7 into a dissolved air zone and a flotation zone, and a control valve 29 is arranged at the bottom of the dosing funnel 9.

[0031] In this embodiment, the inside of the air flotation zone and both sides are provided with a conveying shaft 12, one end of the conveying shaft 12 is provided with a second motor, the outer wall of the conveying shaft 12 is provided with a transmission belt 13, the outer wall of the transmission belt 13 is provided with a mounting shell 14, the mounting shell 14 is provided with a plurality of and uniformly distributed, the inside of the mounting shell 14 is movably provided with a scraper 15, the bottom of the mounting shell 14 and the scraper 15 is provided with a insertion hole 16, the inside of the insertion hole 16 is slidably provided with an insertion rod 17, one end of the insertion rod 17 is provided with a limit block 18, the limit block 18 is in contact with the outer wall of the mounting shell 14, the other end of the insertion rod 17 is provided with a fastening nut 19, the inner wall of the fastening nut 19 is in contact with one side of the mounting shell 14.

[0032] More specifically, the user can add flocculants to the mixing tank 1 through the charging funnel 9 to make it contact with the landfill leachate, and at the same time, the first motor 6 is opened to drive the stirring blade 3 to rotate, so as to realize the stirring effect of the flocculants and the landfill leachate, and facilitate the complete coagulation of the impurities in it, and then the subsequent landfill leachate will enter the treatment tank 7 through the overflow pipe 8, and release the bubbles through the action of the releaser 27, and the impurities in the wastewater will be pushed to the water surface, and then the second motor is opened to drive the scraper 15 to rotate through the transmission belt 13, so as to scrape the impurities on the surface of the air flotation zone into the treatment tank 7, and the user can also disassemble the fastening nut 19 to take out the insertion rod 17 from the inside of the insertion hole 16, so as to disassemble the scraper 15, which is convenient for cleaning.

[0033] Please refer to Figure 1 , Figure 4 and Figure 5 , as an embodiment for filtering the water in the dross again: one end of the treatment tank 7 is provided with a dross outlet 20, the bottom of the dross outlet 20 is provided with a dross bin 21, the dross bin 21 is inclined downward, and a water leakage hole 22 is formed in the bottom thereof, and a discharge pipe 23 is fixedly arranged at the bottom of the treatment tank 7 and located at the lower end of the dross bin 21, a filter screen 24 is arranged at the connection position of the discharge pipe 23 and the treatment tank 7, the other end of the discharge pipe 23 is provided with a water storage box 25, the water storage box 25 is located at the lower end of the water leakage hole 22, and a valve 26 is arranged on the discharge pipe 23.

[0034] Specifically, the scraped dross will enter the dross bin 21 through the dross outlet 20, at this time, the excess water on the dross will enter the water storage box 25 through the water leakage hole 22, after the treatment is completed, the valve 26 is opened to make the water in the treatment tank 7 enter the water storage box 25 through the discharge pipe 23, and the filter screen 24 also filters the water to make the purification effect better.

[0035] Please refer to Figure 1 and Figure 2As a further implementation mode of discharging the bubbles into the dissolved air zone, the bottom of the dissolved air zone is provided with a releaser 27, and the outer end of the treatment tank 7 is provided with a dissolved air pump 28, which is communicated with the releaser 27.

[0036] Specifically, the dissolved air pump 28 can be connected with an external dissolved air tank, so that oxygen or air enters the wastewater, and the flocculent impurities are pushed to the surface of the wastewater, facilitating subsequent cleaning.

[0037] In summary, when the device is in use: the user can add the flocculant into the mixing tank 1 through the dosing funnel 9 to make it contact with the landfill leachate, and at the same time, the first motor 6 is turned on to drive the rotating shaft 2 to rotate the stirring blade 3, so as to realize the stirring effect of the flocculant and the landfill leachate, facilitating the more thorough aggregation of the impurities inside, and then the landfill leachate will enter the treatment tank 7 through the overflow pipe 8, and the bubbles will be released through the action of the releaser 27 to push the impurities in the wastewater to the water surface, and then the second motor is turned on to drive the transmission belt 13 to rotate the scraper 15, so as to scrape the impurities on the surface of the air flotation zone out of the treatment tank 7 and into the scum tank 21 through the slag outlet 20, at this time, the excess water on the scum will enter the water storage box 25 through the water leakage hole 22, after the treatment is completed, the valve 26 is opened to make the water in the treatment tank 7 enter the water storage box 25 through the discharge pipe 23, and at the same time, the filter screen 24 also filters the water to achieve better purification effect, and the user can also disassemble the fastening nut 19 to take out the plug rod 17 from the inside of the plug hole 16 to disassemble the scraper 15, facilitating subsequent cleaning.

[0038] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection, or other known connection methods, which will not be described one by one here. In the above, whenever there is a fixed connection, welding is preferred, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A dissolved air flotation type leachate device comprising a mixing tank (1), characterized by: The inside of the mixing pool (1) is rotatably provided with rotating shafts (2) on both upper and lower sides, the outer walls of the rotating shafts (2) are provided with stirring blades (3) on the inside of the mixing pool (1), one end of each rotating shaft (2) penetrates through the mixing pool (1) and is provided with a belt pulley (4), a belt (5) is arranged between the two belt pulleys (4), a first motor (6) is arranged on the outer wall of the mixing pool (1), the output end of the first motor (6) is fixedly connected with the rotating shaft (2), a treatment pool (7) is arranged on the outer wall of the mixing pool (1), an overflow pipe (8) is arranged on the outer wall of the mixing pool (1) and at the upper end, the overflow pipe (8) is located on one side of the treatment pool (7), a dosing funnel (9) is arranged on the upper end surface of the mixing pool (1), a water adding pipe (10) is arranged on one side of the dosing funnel (9) and at the upper end surface of the mixing pool (1), an overflow plate (11) is arranged at the middle position of the treatment pool (7), and the overflow plate (11) divides the treatment pool (7) into a dissolved air zone and a flotation zone.

2. The dissolved air flotation type leachate device according to claim 1, characterized in that: The inside of the flotation zone is rotatably provided with conveying shafts (12) on both sides, the outer walls of the conveying shafts (12) are provided with transmission belts (13), one end of each conveying shaft (12) is provided with a second motor, the outer walls of the transmission belts (13) are provided with mounting shells (14), the mounting shells (14) are provided with a plurality of mounting shells (14) and are uniformly distributed, the inside of each mounting shell (14) is movably provided with a scraper (15), and the bottom of each of the mounting shell (14) and the scraper (15) is provided with a jack (16). The inside of the jack (16) is slidably provided with a plug rod (17).

3. The dissolved air flotation device for leachate of waste according to claim 2, wherein: One end of the plug rod (17) is provided with a limiting block (18), the limiting block (18) is in contact with the outer wall of the mounting shell (14), the other end of the plug rod (17) is provided with a fastening nut (19), and the inner wall of the fastening nut (19) is in contact with one side of the mounting shell (14).

4. The dissolved air flotation type leachate device according to claim 1, characterized in that: One end of the treatment pool (7) is provided with a slag outlet (20), the bottom of the slag outlet (20) is provided with a dross bin (21), the dross bin (21) is arranged in an inclined downward manner, and a water leakage hole (22) is arranged at the bottom of the dross bin (21).

5. The dissolved air flotation device for leachate of waste according to claim 4, wherein: The bottom of the treatment pool (7) and the lower end of the dross bin (21) are fixedly provided with a discharge pipe (23), the connection position of the discharge pipe (23) and the treatment pool (7) is provided with a filter screen (24), the other end of the discharge pipe (23) is provided with a water storage box (25), and the water storage box (25) is located at the lower end of the water leakage hole (22).

6. The dissolved air flotation device for leachate of waste according to claim 5, wherein: The discharge pipe (23) is provided with a valve (26).

7. The dissolved air flotation device for leachate of waste according to claim 1, wherein: The bottom of the dissolved air zone is provided with a releaser (27), the outer end of the treatment pool (7) is provided with a dissolved air pump (28), and the dissolved air pump (28) is in communication with the releaser (27).

8. The dissolved air flotation device for leachate of waste according to claim 1, wherein: The bottom of the dosing funnel (9) is provided with a control valve (29).

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