Air flotation machine for wastewater treatment

Abstract

The utility model discloses an air floatation machine for wastewater treatment, which relates to the technical field of wastewater treatment, and comprises an air floatation box body, an aeration device and an aeration conveying pipeline, and a slag scraping plate, a sliding seat and a lifting device are arranged in the air floatation box body and above a slag discharge port; the slag scraping plate is located below the sliding base, the slag scraping plate is in a V shape, an opening of the slag scraping plate faces the slag discharging opening, a through hole is formed in the side, facing the ground, of the slag scraping plate in a penetrating mode, the lifting device is arranged at the top of the sliding base, and the output end of the lifting device is arranged at the top of the slag scraping plate; sliding rails are arranged on the two sides of the top of the air floatation box body in the length direction, sliding blocks fixedly connected with the sliding bases are arranged in sliding grooves of the sliding rails, a first motor is arranged on one sliding rail, and the output end of the first motor is fixedly connected with a lead screw; the capacity of the device for removing precipitated light floating flocs is effectively improved, the function of automatically cleaning the scum layer is achieved, and cleaning is easy and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a wastewater treatment is with air floatator. BACKGROUND

[0002] The air floatator is the water treatment equipment that water treatment equipment that dissolved gas system produces a large number of micro-bubbles in water, makes air adhere on suspended particle in the form of highly dispersed micro-bubbles, causes the state less than water, utilizes buoyancy principle to make it float on the water surface, thereby realizes solid-liquid separation;Air floatator is divided into super-efficient shallow air floatator, vortex air floatator, horizontal air floatator;At present, it has application in water supply, industrial wastewater and municipal wastewater treatment;

[0003] The existing wastewater treatment air floatator finds that the distribution of bubbles produced in wastewater is not uniform enough in wastewater, which leads to poor air floatation effect and use reliability;

[0004] The existing air floatator high-efficiency air release device for wastewater treatment with the authorization announcement number CN221440398U includes a box body, four groups of supporting legs, a blower, a steel pipe and an intermediate pipe, a motor drives a transmission shaft to rotate, the transmission shaft drives a first gear to rotate, the first gear drives a second gear to rotate, the second gear drives the intermediate pipe to rotate, the intermediate pipe drives multiple groups of stirring plates to rotate in the working cavity, the intermediate pipe can rotate with the second gear, and the impurities in the wastewater can be removed, the bubbles and wastewater in the working cavity are stirred and mixed by the multiple groups of stirring plates, the distribution of bubbles in wastewater can be more uniform, and the use reliability is improved;The scattered bubbles adhere to the suspended matter during the floating process, and the solid suspended matter is supported by the bubbles to maintain on the water surface after reaching the water surface, forming a dross layer, but the above-mentioned device has defects when in use: it does not have the function of automatically cleaning the dross, therefore, a wastewater treatment air floatator is urgently needed. SUMMARY

[0005] The utility model aims at providing a wastewater treatment air floatator, which effectively improves the ability of the device to remove light and floating flocs, realizes the function of automatically cleaning the dross layer, and is simple and fast to clean.

[0006] To achieve the above object, the utility model provides the following technical scheme: a wastewater treatment air flotation machine, including air flotation box, aeration device, aeration transmission pipeline, the aeration device sets up on the air flotation box, the aeration transmission pipeline sets up in the air flotation box, the aeration device is the aeration transmission pipeline gas supply, the upper and lower of air flotation box outer wall is provided with inlet pipe and drain pipe, the inlet pipe and drain pipe all are provided with control valve on;The side of air flotation box is provided with the discharge port along the width direction;Air flotation box inside and located the upper of discharge port is provided with the slagging -off plate, sliding seat, lifting device;The slagging -off plate is located below sliding seat, the slagging -off plate is V type and the opening is towards the discharge port, the side of the slagging -off plate towards ground is provided with through -hole, the lifting device is set up in the top of sliding seat, and the output of lifting device is set up in the top of slagging -off plate;The both sides of air flotation box top are provided with slide rail along the length direction, the sliding groove of slide rail is provided with the sliding block of fixed connection with sliding seat, one of the slide rail is provided with first motor, the output of first motor is fixedly connected with screw rod, one end of screw rod is screwed through sliding block and is rotatably connected with the sliding groove of slide rail through bearing, and the length of slide rail is greater than the length of air flotation box.

[0007] In order to easily detect the water level in the air flotation tank, as a wastewater treatment air flotation machine of the utility model is preferred, the sliding seat is provided with a radar liquid level meter, the air flotation tank is provided with a controller, and the controller is electrically connected with the radar liquid level meter, the control valve, the lifting device and the first motor.

[0008] In order to easily increase the area of contact between bubbles and water, as a wastewater treatment air flotation machine of the utility model is preferred, the aeration transmission pipeline comprises a gas distribution pipe and an aeration pipe head, the gas distribution pipe is arranged below the air flotation tank in the length direction, and the aeration pipe head is arranged on the outer wall of the gas distribution pipe.

[0009] In order to make the gas distribution pipe rotate, as a wastewater treatment air flotation machine of the utility model is preferred, the aeration device is provided with a turbine, a worm and a second motor, the inner wall of the turbine is fixedly connected with the outer wall of the gas distribution pipe, the worm and the turbine are meshed, and the output of the second motor is fixedly connected with one end of the worm.

[0010] In order to ensure that the gas distribution pipe can rotate normally when the aeration device supplies gas, as a wastewater treatment air flotation machine of the utility model is preferred, one end of the gas distribution pipe located outside the air flotation tank is provided with a universal pipe joint, and the gas outlet end of the aeration device is communicated with one end of the universal pipe joint through a pipeline.

[0011] In order to easily collect the scum, as a kind of air flotation machine for wastewater treatment of the utility model preferably, the air flotation tank body is inclinedly provided with a flow guide plate, the flow guide plate is located below the residue discharge port, and a receiving frame is arranged below the flow guide plate.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] The utility model discloses, air distribution pipe is arranged in air flotation tank body inside below along length direction, and aeration pipe head is staggered and arranged on the outer wall of air distribution pipe, starts aeration device to supply air to aeration delivery pipeline, and the worm is rotated and engaged with the turbine, so that air distribution pipe realizes the function of rotation, and the aeration pipe head rotates in water, increases the area of bubble and water contact, effectively improves the ability of device to remove light and floating floc, and the like.

[0014] Starts lifting device, the lower end of the residue scraping plate is in contact with the wastewater surface, starts the first motor again, the sliding block drives the sliding seat to move towards the residue discharge port, when moving the residue discharge port, the residue scraping plate continues to move while starting the lifting device, drives the residue scraping plate upwards, so that the residue scraping plate is easy to push the scum layer from the residue discharge port automatically, the through hole on the residue scraping plate is easy to seepage of wastewater, realizes the function that the scum layer is automatically cleaned, and cleaning is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic diagram of the utility model;

[0016] Fig. 2 It is the structure schematic diagram of the utility model sliding seat and sliding block overhead;

[0017] Fig. 3 It is the structure schematic diagram of the utility model residue scraping plate.

[0018] In the drawing: 1, air flotation tank body;2, aeration device;3, aeration delivery pipeline;4, inlet pipe;5, drain pipe;6, control valve;7, residue discharge port;8, residue scraping plate;9, sliding seat;10, lifting device;11, through hole;12, sliding rail;13, sliding block;14, first motor;15, screw;16, radar liquid level meter;17, controller;18, air distribution pipe;19, aeration pipe head;20, turbine;21, worm;22, second motor;23, universal pipe joint;24, flow guide plate;25, receiving frame. DETAILED DESCRIPTION

[0019] Please refer to Figs. 1 to 3The utility model provides a kind of air floaters for wastewater treatment, including air float box 1, aeration device 2, aeration transmission pipeline 3, aeration device 2 is set to air float box 1, aeration transmission pipeline 3 is set to air float box 1 inside, aeration device 2 is the aeration transmission pipeline 3 air supply, the upper and lower of air float box 1 outer wall is provided with inlet pipe 4 and drain pipe 5, and inlet pipe 4 and drain pipe 5 are all provided with control valve 6;Air float box 1 is provided with residue discharge port 7 along width direction on one side;Air float box 1 inside and located the upper of residue discharge port 7 is provided with scrape residue plate 8, sliding seat 9, lifting device 10;Scrape residue plate 8 is located the lower of sliding seat 9, and scrape residue plate 8 is V-shaped and opening faces residue discharge port 7, and the side of scrape residue plate 8 towards ground is provided with through-hole 11, and lifting device 10 is set to the top of sliding seat 9, and the output end of lifting device 10 is set to the top of scrape residue plate 8;Both sides of air float box 1 top are provided with sliding rail 12 along length direction, and the sliding groove of sliding rail 12 is provided with sliding block 13 fixedly connected with sliding seat 9, and one of sliding rail 12 is provided with first motor 14, and the output end of first motor 14 is fixedly connected with screw rod 15, and one end of screw rod 15 is screwed through sliding block 13 and is rotatably connected with the sliding groove of sliding rail 12 by bearing, and the length of sliding rail 12 is greater than the length of air float box 1.

[0020] In the embodiment: open the control valve 6 on inlet pipe 4, transport wastewater to air float box 1, then open aeration device 2 to supply air to aeration transmission pipeline 3, form highly dispersed micro-bubbles in water, make the floc in water float to the water surface, form a floating dross layer;

[0021] By starting first motor 14, screw rod 15 rotates, makes sliding block 13 move in the sliding groove of sliding rail 12, and drives sliding seat 9 to move synchronously, and moves to the side of air float box 1 far from residue discharge port 7;Start lifting device 10, the lower end of scrape residue plate 8 contacts with wastewater surface, start first motor 14 again, sliding block 13 drives sliding seat 9 to move towards residue discharge port 7, when moving residue discharge port 7, scrape residue plate 8 continues to move, start lifting device 10 at the same time, drive scrape residue plate 8 upwards, so that scrape residue plate 8 is easy to push the floating dross layer from residue discharge port 7 automatically, the through-hole 11 on scrape residue plate 8 is easy to seep wastewater, realize the function of automatically cleaning floating dross layer, and cleaning is simple and fast.

[0022] As a kind of technical optimization scheme of the utility model, sliding seat 9 is provided with radar liquid level meter 16, and air float box 1 is provided with controller 17, and controller 17 is electrically connected with radar liquid level meter 16, control valve 6, lifting device 10 and first motor 14 respectively.

[0023] In the embodiment: the radar liquid level meter 16 can monitor the water level in the air float tank body 1, when the water level reaches the set value, the controller 17 receives the signal, and then the controller 17 controls the control valve 6 on the water inlet pipe 4 to be closed; and when the air float sludge is cleaned, the water level detected by the radar liquid level meter 16 in the early stage can be used as a reference, so that the controller 17 controls the lifting device 10 to start, and the height of the downward movement of the sludge scraping plate 8 can be controlled. The controller 17 is a single-chip microcomputer controller.

[0024] As a technical optimization scheme of the utility model, the aeration conveying pipeline 3 includes a gas distribution pipe 18 and an aeration pipe head 19; the gas distribution pipe 18 is arranged in the lower part of the air float tank body 1 in a front-rear arrangement along the length direction, and the aeration pipe head 19 is arranged on the outer wall of the gas distribution pipe 18 in a staggered manner; the two ends of the gas distribution pipe 18 are in a closed state and an open state respectively, one end of the gas distribution pipe 18 is rotatably connected to the air float tank body 1 through a bearing, and the other end of the gas distribution pipe 18 penetrates the air float tank body 1;

[0025] A turbine 20, a worm 21 and a second motor 22 are arranged below the aeration device 2; the inner wall of the turbine 20 is fixedly connected to the outer wall of the gas distribution pipe 18, the worm 21 and the turbine 20 are arranged in meshing mode, and the output of the second motor 22 is fixedly connected to one end of the worm 21.

[0026] One end of the gas distribution pipe 18 located outside the air float tank body 1 is provided with a universal pipe joint 23, and the gas outlet end of the aeration device 2 is communicated with one end of the universal pipe joint 23 through a pipeline.

[0027] In the embodiment: the gas distribution pipe 18 is arranged in a front-rear arrangement, and the aeration pipe head 19 is arranged on the gas distribution pipe 18 in a staggered manner; when the second motor 22 is started and the worm 21 rotates, the worm 21 meshes with the turbine 20, so that the gas distribution pipe 18 can rotate, the aeration pipe head 19 rotates in the water, the bubbles and the wastewater are stirred and mixed, the bubbles can be more uniformly distributed in the wastewater, the area of contact between the bubbles and the water is increased, the ability of the device to remove the light and floating flocculation in the sediment is effectively improved, the air float effect and the use reliability are improved, and the efficiency of the wastewater treatment is improved; through the universal pipe joint 23, when the gas distribution pipe 18 rotates, the aeration device 2 can normally deliver gas into the gas distribution pipe 18.

[0028] As a technical optimization scheme of the utility model, the air float tank body 1 is provided with a flow guide plate 24 arranged in an inclined manner, the flow guide plate 24 is located below the sludge discharge port 7, and a receiving frame 25 is arranged below the flow guide plate 24.

[0029] In the embodiment: the flow guide plate 24 plays a flow guiding role on the float sludge, and the float sludge is easily collected into the receiving frame 25.

[0030] Working principle: first start aeration device 2 to aeration delivery pipeline 3 into the gas supply, start the second motor 22, worm 21 rotation and turbine 20 meshing, make cloth gas pipe 18 realize the function of rotation, aeration pipe head 19 in the water rotation, increase the area of gas bubble and water contact, effectively improve the ability of the device to remove the light and floating flocculation, make the flocculation in the water to the water surface, form the dross layer, start lifting device 10, the lower end of the skimming plate 8 is in contact with the wastewater surface, start the first motor 14 again, the slider 13 drives the sliding seat 9 to move towards the discharge port 7, when the discharge port 7 moves, the skimming plate 8 continues to move, at the same time, start the lifting device 10, drive the skimming plate 8 upwards, so that the skimming plate 8 is easy to push out the dross layer from the discharge port 7 automatically, the through hole 11 on the skimming plate 8 is easy to seepage of wastewater, realize the function of automatic cleaning of dross layer, and the cleaning is simple and fast.

[0031] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A kind of air floaters for wastewater treatment, including air float tank (1), aeration device (2), aeration transmission pipeline (3), the aeration device (2) is set on air float tank (1), the aeration transmission pipeline (3) is set in air float tank (1), the aeration device (2) is the aeration transmission pipeline (3) air supply, the upper and lower of the outer wall of air float tank (1) is provided with inlet pipe (4) and drain pipe (5), the inlet pipe (4) and drain pipe (5) are all provided with control valve (6);It is characterized by: The side of the air floatation box body (1) is provided with a slag discharge port (7) along the width direction; the inside of the air floatation box body (1) and above the slag discharge port (7) is provided with a slag scraping plate (8), a sliding seat (9) and a lifting device (10); the slag scraping plate (8) is below the sliding seat (9), the slag scraping plate (8) is V-shaped and the opening faces the slag discharge port (7), one side of the slag scraping plate (8) facing the ground is provided with a through hole (11), the lifting device (10) is arranged on the top of the sliding seat (9), and the output end of the lifting device (10) is arranged on the top of the slag scraping plate (8); both sides of the top of the air floatation box body (1) are provided with sliding rails (12) along the length direction, sliding grooves of the sliding rails (12) are provided with sliding blocks (13) fixedly connected with the sliding seat (9), one of the sliding rails (12) is provided with a first motor (14), the output end of the first motor (14) is fixedly connected with a lead screw (15), one end of the lead screw (15) is threadedly penetrated through the sliding block (13) and rotationally connected with the sliding groove of the sliding rail (12) through a bearing, and the length of the sliding rail (12) is greater than the length of the air floatation box body (1).

2. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The sliding seat (9) is provided with a radar liquid level meter (16), the air floatation box body (1) is provided with a controller (17), and the controller (17) is electrically connected with the radar liquid level meter (16), the control valve (6), the lifting device (10) and the first motor (14); the lifting device (10) is an electric telescopic rod, an air pressure telescopic rod or a hydraulic telescopic rod.

3. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The aeration conveying pipeline (3) comprises a gas distribution pipe (18) and an aeration pipe head (19); the gas distribution pipe (18) is arranged below the air floatation box body (1) in front and back along the length direction, and the aeration pipe head (19) is arranged on the outer wall of the gas distribution pipe (18) in a staggered mode; the two ends of the gas distribution pipe (18) are in a closed state and an open state respectively, one end of the gas distribution pipe (18) is rotationally connected with the air floatation box body (1) through a bearing, and the other end of the gas distribution pipe (18) penetrates through the air floatation box body (1).

4. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The lower side of the aeration device (2) is provided with a turbine (20), a worm (21) and a second motor (22), the inner wall of the turbine (20) is fixedly connected with the outer wall of the gas distribution pipe (18), the worm (21) and the turbine (20) are in meshing connection, and the output end of the second motor (22) is fixedly connected with one end of the worm (21).

5. The air flotation machine for wastewater treatment according to claim 3, characterized in that: One end of the gas distribution pipe (18) located outside the air floatation box body (1) is provided with a universal pipe joint (23), and the gas outlet end of the aeration device (2) is in communication with one end of the universal pipe joint (23) through a pipeline.

6. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The air floatation box body (1) is provided with a flow guide plate (24) in an inclined mode, the flow guide plate (24) is below the slag discharge port (7), and a receiving frame (25) is arranged below the flow guide plate (24).

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