Scum collecting device of shallow air flotation machine

Abstract

The utility model discloses a shallow air flotation machine scum collecting device, which comprises an air flotation tank and a scum collecting tank floating on the surface of the air flotation tank, the scum collecting tank is fixedly connected with a central rotary walking mechanism of an air flotation machine, one side of the scum collecting tank forms a low-end scum inlet side, and the other side of the scum collecting tank forms a low-end scum outlet side. The low-end slag inlet side is provided with a slag baffle which is assembled with the central rotary walking mechanism in a swinging and hinging manner; and the inner wall of the air floatation tank is fixedly provided with a deflector rod for pushing the slag baffle to turn over so as to open the low-end slag inlet side. By adopting the scum collecting device disclosed by the invention, on one hand, the cost and the energy consumption of configuring scum scraping equipment for the shallow air flotation machine can be effectively reduced; on the other hand, the slag scraping efficiency and effect of the shallow air flotation machine can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, concretely relates to a shallow gas floatation machine scum collecting device. BACKGROUND

[0002] The shallow gas floatation machine is in the shape of a cylinder, compact in structure and shallow in pool. The device main body is composed of five parts: pool body, rotating water distribution mechanism, dissolved gas release mechanism, frame mechanism and water collecting mechanism. The water inlet, water outlet and scum discharge outlet are all concentrated in the central area of the pool body, the rotating water distribution mechanism, water collecting mechanism and dissolved gas release mechanism are integrated together through the frame and rotate around the center of the pool body.

[0003] The shallow gas floatation machine needs to be equipped with a scum scraper during application. The scum pollutants separated and floated in the clean water area of the gas floatation pool are taken away by the spiral skimmer and flow to the sludge barrel by itself, and then flow to the scum pool under the action of gravity. The skimming device (skimmer) moves synchronously in the circumferential direction with the main machine running mechanism and rotates by itself. A driving mechanism needs to be separately configured during the self-rotation process, and the scum formed during the self-rotation process of the skimmer cannot be scraped in time, so the scum removal effect is poor. This is the main reason why the gas floatation machine needs to skim the scum for multiple times. At the same time, due to the limitation of the volume of the skimmer, the accumulation of a large amount of foam will cause the scum removal to be not smooth at the opening of the scum cylinder.

[0004] In summary, the devices for treating scum in the prior art cannot treat the scum completely, have high energy consumption and complex structure, and therefore, there is an urgent need for a scum scraping device which is simple in structure, easy to operate and high in treatment effect. UTILITY MODEL CONTENTS

[0005] In order to overcome the deficiencies in the prior art, the purpose of the utility model is to provide a shallow gas floatation machine scum collecting device, which can effectively reduce the cost and energy consumption of the shallow gas floatation machine equipped with a scum scraping device, and ensure the scum scraping efficiency and effect of the shallow gas floatation machine.

[0006] The utility model solves the above problems through the following technical means:

[0007] A shallow gas floatation machine scum collecting device, which comprises a gas floatation pool and a scum collecting groove floating on the surface of the gas floatation pool. The scum collecting groove is fixedly connected with the central rotating running mechanism of the gas floatation machine. One side of the scum collecting groove forms a low-end scum inlet side. The low-end scum inlet side is provided with a scum blocking plate swingingly connected with the central rotating running mechanism. The inner wall of the gas floatation pool is fixedly provided with a push rod for pushing the scum blocking plate to turn over and open the low-end scum inlet side.

[0008] Further, when the scum blocking plate is in the state of closing the low-end scum inlet side, the size of the bottom end of the scum blocking plate extending into the scum collecting groove is 1 / 10-1 / 5 of the height of the scum blocking plate.

[0009] Further, the dross collecting groove is communicated with the dross outlet pipe of the air flotation machine.

[0010] Further, the low-end dross inlet side is connected with a dross collecting plate.

[0011] Further, a rotating shaft is fixedly connected to the center rotating walking mechanism, and the dross blocking plate is rotationally sleeved with the rotating shaft.

[0012] Further, a sleeve is fixedly connected to the top of the dross blocking plate, and the sleeve is rotationally sleeved with the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows:

[0014] The utility model discloses a shallow air flotation machine dross collecting device, including air flotation pool and the dross collecting groove that floats in the surface of air flotation pool, the dross collecting groove is fixedly connected with the center rotating walking mechanism of air flotation machine, and the low-end dross inlet side is formed to one side of dross collecting groove, and the low-end dross inlet side is provided with the dross blocking plate of swing hinged assembly with center rotating walking mechanism, the inner wall of air flotation pool is fixedly provided with the dolly of opening low-end dross inlet side by pushing dross blocking plate to overturn. When working, the dross collecting groove and dross blocking plate move together with center rotating walking mechanism, and the dross on the surface of air flotation pool is gathered by the dolly of dross collecting groove, when walking to the dolly position, the dross is made into the dross collecting groove through the dolly pushing dross blocking plate overturn, when dross blocking plate passes through the dolly, it can rely on self gravity reset, like this, the whole dross collecting process does not need additional power, and simultaneously experiences the process of gathering dross and discharging dross, on one hand, can effectively reduce the cost and energy consumption of shallow air flotation machine configuration scraping dross equipment, on the other hand, can ensure the scraping dross efficiency and effect of shallow air flotation machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings and examples.

[0016] Fig. 1 It is structural schematic drawing of preferred embodiment of the utility model from one angle;

[0017] Fig. 2 It is structural schematic drawing of preferred embodiment of the utility model from another angle. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing and simplifying the description of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] like Figs. 1-2 As shown, this embodiment provides a scum collection device for a shallow dissolved air flotation (DAF) machine, including a DAF tank 1 and a scum collection trough 8 floating on the surface of the DAF tank. The scum collection trough is connected to the scum discharge pipe of the DAF machine, through which the scum collected in the scum collection trough can be discharged. The scum collection trough is fixedly connected to the central rotating walking mechanism 2 of the DAF machine. One side of the scum collection trough forms a low-end scum inlet side 9. The low-end scum inlet side is provided with a baffle plate 4 that is oscillatingly hinged to the central rotating walking mechanism. When the baffle plate is in the closed state of the low-end scum inlet side, the bottom end of the baffle plate extends into the scum collection trough by 1 / 10-1 / 5 of the height of the baffle plate. In this embodiment, a rotating shaft 5 is fixedly connected to the central rotating walking mechanism, and a sleeve 6 is fixedly connected to the top of the baffle plate. The sleeve is rotatably fitted with the rotating shaft. When the baffle plate is subjected to external force, it can swing around the rotating shaft. A lever 7 is fixedly provided on the inner wall of the DAF tank to push the baffle plate to flip and open the low-end scum inlet side.

[0022] As a further improvement to the above technical solution, a slag collection plate 3 is connected to the low-end slag inlet side; when the slag collection tank rotates and agitates the slag to gather, the slag collection plate has the function of collecting slag and can make the slag gather on the low-end slag inlet side.

[0023] In work, the dross collecting groove and the dross baffle move with the center rotating walking mechanism, the dross on the surface of the air flotation tank is gathered through the stirring of the dross collecting groove, when walking to the position of the stirring rod, the dross baffle is overturned through the stirring rod, so that the dross flows into the dross collecting groove through the low end, when the dross baffle passes the stirring rod, it can reset by its gravity, so that the whole dross collecting process does not need extra power, and the process of gathering and discharging dross is experienced, on the one hand, the cost and energy consumption of the shallow air flotation machine with a scraping device can be effectively reduced, on the other hand, the efficiency and effect of the shallow air flotation machine scraping dross can be ensured.

[0024] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A scum collection device for a shallow gas float, characterized by: The floating sludge collecting tank is fixedly connected with the center rotating walking mechanism of the air flotation machine, one side of the floating sludge collecting tank is formed with a low-end sludge inlet side, the low-end sludge inlet side is provided with a sludge blocking plate which is swingingly hingedly assembled with the center rotating walking mechanism, and a pushing rod is fixedly arranged on the inner wall of the air flotation tank to push the sludge blocking plate to overturn and open the low-end sludge inlet side.

2. The scum collection device for a shallow gas float, according to claim 1, characterized by: When the sludge blocking plate is in a state of closing the low-end sludge inlet side, the size of the bottom end of the sludge blocking plate extending into the floating sludge collecting tank is 1 / 10-1 / 5 of the height of the sludge blocking plate.

3. The scum collection apparatus for a shallow gas floatation machine according to claim 1, characterized in that: The floating sludge collecting tank is communicated with the sludge outlet pipe of the air flotation machine.

4. The scum collection apparatus for a shallow gas floatation machine of claim 1, wherein: The low-end sludge inlet side is connected with a sludge collecting plate.

5. The scum collection apparatus for a shallow gas floatation machine of claim 1, wherein: A rotating shaft is fixedly connected to the center rotating walking mechanism, and the sludge blocking plate is rotationally sleeved with the rotating shaft.

6. The scum collection apparatus for a shallow gas floatation machine according to claim 5, characterized in that: A sleeve is fixedly connected to the top of the sludge blocking plate, and the sleeve is rotationally sleeved with the rotating shaft.

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