Swing type oil scraping device of wastewater treatment system

Abstract

The utility model discloses a swing type oil scraping device of a wastewater treatment system, relates to the technical field of wastewater treatment, and can solve the problem that the existing oil scraping structure is poor in oil scraping effect. The swing type oil scraping device of the waste water treatment system comprises a positive and negative rotation driving mechanism, two oil collecting structures which are oppositely arranged and two oil scraping plates which are horizontally arranged on the water surface of a supernatant pool, the positive and negative rotation driving mechanism comprises a first transmission assembly and a second transmission assembly, and the first transmission assembly is connected with the second transmission assembly. The driving motor is used for driving the first transmission assembly and the second transmission assembly to synchronously and reversely rotate, and the first transmission assembly and the second transmission assembly are coaxially arranged and are in transmission connection with the output end of the driving motor; the two oil scraping plates are fixed to the output end of the first transmission assembly and the output end of the second transmission assembly respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely relates to a swing type oil scraping device of wastewater treatment system. BACKGROUND

[0002] In the wastewater treatment system, before the wastewater enters the aerobic treatment link and the anaerobic treatment link, generally needs to filter impurities first, then carries out the sedimentation through the supernatant tank, so that the sludge in the wastewater is deposited to the bottom of the supernatant tank, and the water body after the sedimentation enters other treatment links through the overflow channel.

[0003] In the wastewater sedimentation process of the supernatant tank, not only the sludge will be deposited, but also the oil in the wastewater will float to the surface, at present, generally the rotary oil scraping mechanism is utilized to push the oil on the surface of the supernatant tank, and the waste oil collector is arranged on the pool wall of the supernatant tank, the oil is pushed into the waste oil collector by the rotary oil scraping mechanism, avoids the oil entering the subsequent wastewater treatment link with the wastewater, but the existing rotary oil scraping structure, after the oil is pushed, only part enters the waste oil collector, and considerable oil will move in the supernatant tank with the rotation of the oil scraping mechanism, the rotary oil scraping mechanism is not good for the oil scraping effect on the surface of the supernatant tank, so that part of the oil will be in the subsequent wastewater treatment, and the subsequent wastewater treatment is affected.

[0004] Based on the above background, the inventor designs a swing type oil scraping device of wastewater treatment system, aims to solve the problem of poor oil scraping effect of the current oil scraping structure, thus, the present application is proposed. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a swing type oil scraping device of wastewater treatment system, aiming at solving the problem of poor oil scraping effect of the current oil scraping structure.

[0006] To solve the above technical problems, the utility model adopts the following schemes:

[0007] The swing type oil scraping device of wastewater treatment system provided by the present application comprises a forward-reverse driving mechanism and two oppositely arranged oil collecting structures, and two oil scraping plates arranged horizontally on the water surface of the supernatant tank.

[0008] The forward-reverse driving mechanism comprises a first transmission assembly and a second transmission assembly, and a driving motor for driving the first transmission assembly and the second transmission assembly to rotate reversely synchronously, the first transmission assembly and the second transmission assembly are coaxially arranged and are in transmission connection with the output end of the driving motor.

[0009] The two oil scraping plates are fixed on the output ends of the first transmission assembly and the second transmission assembly respectively.

[0010] Optionally, the driving motor is horizontally arranged.

[0011] The positive and negative rotation driving mechanism further comprises a driving bevel gear arranged on the output shaft of the driving motor.

[0012] The first transmission assembly comprises a first rotating sleeve and a first driven bevel gear arranged on the first rotating sleeve.

[0013] The second transmission assembly comprises a second rotating sleeve and a second driven bevel gear arranged on the second rotating sleeve.

[0014] The first rotating sleeve and the second rotating sleeve are coaxially arranged.

[0015] The first driven bevel gear and the second driven bevel gear are oppositely arranged and both mesh with the driving bevel gear.

[0016] The first driven bevel gear and the second driven bevel gear are of the same structure.

[0017] The transmission ratio of the first driven bevel gear and the driving bevel gear is equal to the transmission ratio of the second driven bevel gear and the driving bevel gear.

[0018] Two oil scraping plates are respectively arranged on the first rotating sleeve and the second rotating sleeve.

[0019] Optionally, the positive and negative rotation driving mechanism further comprises a vertical fixed shaft.

[0020] The first rotating sleeve is arranged on the fixed shaft and rotationally connected therewith.

[0021] The second rotating sleeve is arranged on the first rotating sleeve and rotationally connected therewith.

[0022] Optionally, the longitudinal section shape of the oil scraping plate is triangular or trapezoidal.

[0023] Optionally, the bottom height and the top height of the two oil scraping plates are the same.

[0024] Optionally, the oil inlet end of the oil collecting structure is a flared structure.

[0025] Optionally, the device further comprises a blowing mechanism arranged above the supernatant tank, and the blowing mechanism comprises:

[0026] A blowing pipe horizontally arranged and provided with a plurality of air outlets at the bottom, and a fan in communication with the blowing pipe.

[0027] The two ends of the blowing pipe are respectively located directly above the two oil collecting structures.

[0028] Optionally, the blowing pipe is provided with a blowing branch pipe at each air outlet at the bottom, and the air outlet direction of the blowing branch pipe is inclined downward and towards the oil inlet end of the oil collecting structure.

[0029] Optionally, the angle between the axis of the blowing branch pipe and the horizontal plane ranges from 15° to 75°.

[0030] The present application has the following beneficial effects:

[0031] The present application is provided with a forward and reverse driving mechanism, two oil scraping plates and two oil collecting structures, the forward and reverse driving mechanism comprises a first transmission assembly and a second transmission assembly which rotate in opposite directions synchronously, and the two oil scraping plates are arranged on the first transmission assembly and the second transmission assembly respectively, so that the two oil scraping plates are first away from each other and then close to each other, the floating oil on the water surface of the clarifying tank can be collected and gathered between the two oil scraping plates by the oil collecting structure, and when the floating oil continues to accumulate, the driving motor is reversed, the two oil scraping plates can repeat the oil gathering action of being first away from each other and then close to each other, so that the floating oil is collected by the other oil collecting structure, compared with the prior art, the floating oil on the water surface of the clarifying tank can be completely gathered by one oil scraping action, the oil scraping effect is good, and the prior art problem can be effectively solved.

[0032] Secondly, on the basis of the oil gathering of the two oil scraping plates, the present application is also provided with a blowing mechanism, so that after the floating oil is gathered between the two oil scraping plates, the blowing mechanism can quickly and efficiently drive the floating oil to flow to the oil collecting structure, and the floating oil on the water surface of the clarifying tank can be fully removed. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a top view structural schematic diagram of the prior art of the present application.

[0034] Figure 2 It is a top view structural schematic diagram of the embodiment of the present application.

[0035] Figure 3 It is a top view structural schematic diagram of the embodiment of the present application in use.

[0036] Figure 4 It is a front view structural schematic diagram of the forward and reverse driving mechanism in the embodiment of the present application.

[0037] Mark 1-forward and reverse driving mechanism, 11-driving motor, 12-driving bevel gear, 13-first transmission assembly, 131-first driven bevel gear, 132-first rotating sleeve, 14-second transmission assembly, 141-second driven bevel gear, 142-second rotating sleeve, 15-fixed shaft, 2-oil scraping plate, 3-blowing pipe, 4-oil collecting structure, 5-oil scraper, 6-waste oil collector. DETAILED DESCRIPTION

[0038] The present application will be further described in detail below in combination with embodiments and drawings, but the implementation mode of the present application is not limited thereto.

[0039] In the description of the utility model, it needs to be explained that, the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0040] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "open", "install", "connect", "connect" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] The utility model will be described in detail below by referring to the drawings and combining with the embodiments.

[0042] As Figures 2 to 4 shown, the embodiment provides a swing type oil scraping device of wastewater treatment system, including positive and negative rotation driving mechanism 1 and two opposite set oil collecting structure 4, and two oil scraping plates 2 for horizontal setting on the water surface of supernatant tank, wherein:

[0043] The positive and negative rotation driving mechanism 1 includes first transmission assembly 13 and second transmission assembly 14, and driving motor 11 for driving first transmission assembly 13 and second transmission assembly 14 synchronous reverse rotation, first transmission assembly 13 and second transmission assembly 14 coaxial arrangement and all with the output end transmission connection of driving motor 11;

[0044] Two oil scraping plates 2 are fixed on the output end of first transmission assembly 13 and second transmission assembly 14 respectively.

[0045] As Figure 1 shown, in the prior art, the oil scraper 5 continuously rotates in the same direction, although the oil attached to the water surface can be gathered by the oil scraper 5, but only part of the floating oil enters the waste oil collector 6 every rotation, and the oil scraping effect is not good.

[0046] As Figures 2 to 4As shown, the embodiment is provided with the forward and reverse driving mechanism 1, two oil scraping plates 2 and two oil collecting structures 4, the forward and reverse driving mechanism 1 includes the first transmission assembly 13 and the second transmission assembly 14 which rotate reversely synchronously, and the two oil scraping plates 2 are arranged on the first transmission assembly 13 and the second transmission assembly 14 respectively, so that the two oil scraping plates 2 are first away from each other and then close to each other, which can make the floating oil on the water surface of the clarifying tank be collected and gathered between the two oil scraping plates 2 and be collected by the oil collecting structure 4, and when the floating oil continues to accumulate, the driving motor 11 is started to reverse, and the two oil scraping plates 2 can repeat the oil gathering action of first being away from each other and then being close to each other, so that the floating oil is collected by the other oil collecting structure 4, compared with the prior art, the floating oil on the water surface of the clarifying tank can be gathered completely in one oil scraping action, the oil scraping effect is good, and the problems of the prior art can be effectively solved.

[0047] Specifically, in the embodiment, as shown in the drawings, Figure 4 The driving motor 11 is horizontally arranged;

[0048] The forward and reverse driving mechanism 1 further includes the driving motor 11 arranged on the output shaft of the driving motor 11;

[0049] The first transmission assembly 13 includes the first rotating sleeve 132 and the first driven bevel gear 131 arranged on the first rotating sleeve 132;

[0050] The second transmission assembly 14 includes the second rotating sleeve 142 and the second driven bevel gear 141 arranged on the second rotating sleeve 142;

[0051] The first rotating sleeve 132 and the second rotating sleeve 142 are coaxially arranged;

[0052] The first driven bevel gear 131 and the second driven bevel gear 141 are oppositely arranged and both mesh with the driving bevel gear 12;

[0053] The first driven bevel gear 131 and the second driven bevel gear 141 are of the same structure;

[0054] The transmission ratio of the first driven bevel gear 131 and the driving bevel gear 12 is equal to the transmission ratio of the second driven bevel gear 141 and the driving bevel gear 12;

[0055] Two oil scraping plates 2 are respectively installed on the first rotating sleeve 132 and the second rotating sleeve 142. In the embodiment, the first rotating sleeve 132 and the first driven bevel gear 131 are fixedly connected, and the second rotating sleeve 142 and the second driven bevel gear 141 are fixedly connected. When the driving bevel gear 12 rotates, the first driven bevel gear 131 and the second driven bevel gear 141 can be driven to rotate in opposite directions, and then the first rotating sleeve 132 and the second rotating sleeve 142 are driven to rotate in opposite directions, so that the two oil scraping plates 2 repeatedly move away from and close to each other. In the embodiment, the driving motor 11 can be a servo motor or a stepping motor.

[0056] Specifically, in the embodiment, as shown in Figure 4 , the forward-reverse rotation driving mechanism 1 further comprises a vertical fixed shaft 15;

[0057] The first rotating sleeve 132 is installed on the fixed shaft 15 and is rotatably connected thereto;

[0058] The second rotating sleeve 142 is installed on the first rotating sleeve 132 and is rotatably connected thereto.

[0059] Specifically, in the embodiment, the longitudinal cross-sectional shape of the oil scraping plate 2 is a triangle or a trapezoid, so that the effect of the oil scraping plate 2 on gathering floating oil is better. In particular, when the blowing mechanism blows floating oil, the floating oil can be prevented from overflowing from the top of the oil scraping plate 2.

[0060] Specifically, in the embodiment, as shown in Figure 4 , the bottom height and the top height of the two oil scraping plates 2 are the same.

[0061] Specifically, in the embodiment, as shown in Figure 2 and Figure 3 , the oil collecting structure 4 has a trumpet-shaped flared structure at the oil inlet end, which facilitates the collection of floating oil.

[0062] Specifically, in the embodiment, as shown in Figure 2 and Figure 3 , the blowing mechanism for being arranged above the supernatant tank further comprises:

[0063] A blowing pipe 3 horizontally arranged and provided with a plurality of air outlets at the bottom, and a fan (not shown in the figure) in communication with the blowing pipe 3;

[0064] The two ends of the blowing pipe 3 are respectively located directly above the two oil collecting structures 4. Based on the oil gathering of the two oil scraping plates 2, the blowing mechanism is further arranged, so that after the floating oil is gathered between the two oil scraping plates 2, the blowing mechanism can quickly and efficiently drive the floating oil to flow to the oil collecting structure 4, and the floating oil on the surface of the supernatant tank is fully removed.

[0065] Specifically, in the embodiment, the air blowing branch pipes are arranged at the air outlets of the bottom of the air blowing pipe 3, and the air blowing directions of the air blowing branch pipes are inclined downward and arranged toward the oil inlet end of the oil collecting structure 4. The inclined arrangement of the air blowing branch pipes can improve the speed of the floating oil entering the oil collecting structure 4, and avoid the residual floating oil between the two oil scraping plates 2.

[0066] Specifically, in the embodiment, the included angle between the axis of the air blowing branch pipe and the horizontal plane ranges from 15° to 75°. In the embodiment, the included angle between the axis of the air blowing branch pipe and the horizontal plane is 30°. A skilled person can select other angles such as 45° and 60° according to the need, and the details are not described herein.

[0067] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the utility model, and the utility model is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the utility model, and these modifications and improvements are also regarded as the protection scope of the utility model.

Claims

1. A swing-type oil scraping device of a wastewater treatment system, characterized by, The device comprises a forward-reverse driving mechanism (1), two opposite oil collecting structures (4), and two horizontal oil scraping plates (2) arranged on the surface of the supernatant tank. The forward-reverse driving mechanism (1) comprises a first transmission assembly (13), a second transmission assembly (14), and a driving motor (11) for driving the first transmission assembly (13) and the second transmission assembly (14) to rotate reversely synchronously, the first transmission assembly (13) and the second transmission assembly (14) are coaxially arranged and are in transmission connection with the output end of the driving motor (11). The two oil scraping plates (2) are respectively fixed on the output ends of the first transmission assembly (13) and the second transmission assembly (14).

2. A swing-type oil scraping device of a wastewater treatment system according to claim 1, characterized by The driving motor (11) is horizontally arranged. The forward-reverse driving mechanism (1) further comprises a driving bevel gear (12) arranged on the output shaft of the driving motor (11). The first transmission assembly (13) comprises a first rotating sleeve (132) and a first driven bevel gear (131) arranged on the first rotating sleeve (132). The second transmission assembly (14) comprises a second rotating sleeve (142) and a second driven bevel gear (141) arranged on the second rotating sleeve (142). The first rotating sleeve (132) and the second rotating sleeve (142) are coaxially arranged. The first driven bevel gear (131) and the second driven bevel gear (141) are oppositely arranged and are in meshing connection with the driving bevel gear (12). The two oil scraping plates (2) are respectively arranged on the first rotating sleeve (132) and the second rotating sleeve (142).

3. A swing-type oil scraping device of a wastewater treatment system according to claim 2, characterized by The forward-reverse driving mechanism (1) further comprises a vertical fixed shaft (15). The first rotating sleeve (132) is arranged on the fixed shaft (15) and is in rotational connection with the fixed shaft (15). The second rotating sleeve (142) is arranged on the first rotating sleeve (132) and is in rotational connection with the first rotating sleeve (132).

4. The oscillating skimming device of a wastewater treatment system according to claim 1, wherein The longitudinal section shape of the oil scraping plate (2) is triangular or trapezoidal.

5. The oscillating skimming device of a wastewater treatment system according to claim 1, wherein The bottom height and the top height of the two oil scraping plates (2) are the same.

6. A swing-type skimming device for a wastewater treatment system according to claim 1, wherein The oil inlet end of the oil collecting structure (4) is a flared structure.

7. A swing-type skimming device for a wastewater treatment system according to claim 1, wherein The device further comprises a blowing mechanism arranged above the supernatant tank, the blowing mechanism comprises: A blowing pipe (3) horizontally arranged and provided with a plurality of air outlets at the bottom, and a fan in communication with the blowing pipe (3). The two ends of the blowing pipe (3) are located directly above the two oil collecting structures (4).

8. A swing-type skimming device for a wastewater treatment system according to claim 7, characterized in that The blowing pipe (3) is provided with a blowing branch pipe at each air outlet at the bottom, the air outlet direction of the blowing branch pipe is inclined downward and is arranged towards the oil inlet end of the oil collecting structure (4).

9. A swing-type skimming device for a wastewater treatment system according to claim 8, characterized in that The angle between the axis of the blowing branch pipe and the horizontal plane ranges from 15° to 75°.

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