CN214106110U - Sewage air-float treatment device without residual scum - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage air-flotation treatment device without residual scum, which comprises a working box, a sewage valve, a solid-liquid separation device, a filter device, a clean water tank and a mud discharging device, wherein the working box is placed on a horizontal plane, the sewage valve is arranged on the side wall of the working box, the solid-liquid separation device is arranged on the side wall in the working box, the filter device is arranged at the top of the working box, the clean water tank is arranged on the side wall of the working box, the mud discharging device is arranged at the side of the working box, the mud discharging device is provided with a mud discharging hole communicated with the working box, the sewage valve controls the flow of sewage to be opened and closed according to the actual operation, the solid-liquid separation device carries out the solid-liquid separation operation, the solid-liquid separation efficiency is improved, the filter device carries out the replacement operation on a filter plate, and ensures that the water flowing, the sludge discharging device discharges the sludge in the working box.

Description

Sewage air-float treatment device without residual scum

Technical Field

The utility model belongs to the technical field of sewage treatment technique and specifically relates to a do not contain sewage air supporting processing apparatus who remains dross.

Background

Among water pollution caused by human production activities, water pollution caused by industry is the most serious. For example, industrial wastewater contains many pollutants and complex components, and is not only difficult to purify in water, but also difficult to treat. Industrial wastewater is the most important cause of water body pollution caused by industrial pollution. It accounts for a large portion of the pollutants discharged by industry. The pollutants contained in the industrial wastewater vary widely according to different types of plants, and even if the same type of plants have different production processes, the quality and the quantity of the pollutants contained in the industrial wastewater are different. In addition to the pollution caused by the direct injection of the discharged wastewater into the water body, the industry also pollutes the water body by solid waste and waste gas.

However, the existing sewage air-floatation treatment device without residual scum still has the following problems: the source that gets into from sewage can't be effectual keeps apart remaining residue, can't change the filter layer when handling sewage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewage air supporting processing apparatus who does not contain residual dross to solve among the prior art can't effectual will remain the residue and keep apart from the source that sewage got into, can't carry out the technical problem who changes to the filter layer when handling sewage.

The utility model provides a sewage air supporting processing apparatus who does not contain and remain dross, including work box, sewage valve, solid-liquid separation equipment, filter equipment, clean water tank and row's mud device, the work box is placed on the horizontal plane, the sewage valve is installed on the lateral wall of work box, be equipped with the sewage inlet opening that is linked together with the sewage valve on the work box, solid-liquid separation equipment installs on the lateral wall in the work box, filter equipment installs the top at the work box, clean water tank installs on the lateral wall of work box, clean water tank and work box are equipped with the apopore that is linked together, the side at the work box is installed to row's mud device, row's mud device is equipped with the row's mud hole that communicates mutually with the work box.

Further, the sewage valve includes work motor, work motor cabinet, driving-disc, rotary disk and five rotatory pieces, the work motor cabinet is installed on the lateral wall of work box, the work motor is installed on the work motor cabinet, the driving-disc is installed on the main shaft of work motor and with work motor spindle drive cooperation, the rotary disk is installed on the lateral wall of work box and with driving-disc normal running fit, be equipped with spout and hole on the rotary disk, five rotatory pieces are installed respectively on the rotary disk and with rotary disk normal running fit.

Further, the solid-liquid separation device comprises a bearing platform, a driving motor seat, a driving gear, a rotating rod, a rotating block, a driving frame, a fixing rod, a first sliding block, a second sliding block, a first solid-liquid separation plate, a second solid-liquid separation plate, a first connecting plate, a second connecting plate, four positioning springs and eight positioning rods, wherein the bearing platform is arranged on the side wall in the working box, the driving motor seat is arranged on the side wall in the working box, the driving motor is arranged on the driving motor seat, the driving gear is arranged on a main shaft of the driving motor and is in transmission fit with the main shaft of the driving motor, a placing groove is arranged in the bearing platform, the first sliding block and the second sliding block are arranged on the bearing platform and are in sliding fit with the bearing platform, one end of the rotating rod is arranged at the top of the first sliding block, the rotating gear is arranged on the rotating rod and is in rotating fit with the rotating rod, the rotating gear is engaged with the driving gear, the rotating block is arranged at the top of the first sliding block and sleeved on the rotating rod, the rotating block is in rotating fit with the rotating rod, one end of the driving rack is arranged on the rotating block, the fixed rod is arranged at the top of the second sliding block, the other end of the driving frame is connected with a fixed rod, the first connecting plate is arranged on the side wall of the first sliding block, the second connecting plate is arranged on the side wall of the second sliding block, the first solid-liquid separation plate is arranged on the first connecting plate, the second solid-liquid separation board is installed on the second connecting board, first solid-liquid separation board and second solid-liquid separation board sliding fit, eight the locating lever is installed respectively on the both ends in the bearing platform slot and the both sides wall of first sliding block and the both sides wall of second sliding block, four the both ends of positioning spring are established respectively on two of them locating levers.

Furthermore, the filtering device comprises a filtering supporting plate, a rotating motor, a belt, a fixed seat, a lifting frame, a Y-shaped fixed rod, a filtering plate and two clamping blocks, the filtering supporting plate is arranged at the top of the working box, the rotating motor is arranged on the side wall of the filtering supporting plate, the fixed seat is arranged on the side wall of the filtering supporting plate, the lifting frame is arranged on the fixed seat and is in rotating fit with the fixed seat, the belt is sleeved on the spindle of the rotating motor and the lifting frame, the filtering supporting plate is provided with a belt which can pass through the through hole, the two clamping blocks are symmetrically arranged on the side wall of the filtering supporting plate, the filter is placed between two block pieces and with two block piece sliding fit, the one end of Y type dead lever is installed on the filter and with filter normal running fit, the other both ends of Y type dead lever are connected with the hoisting frame and are articulated the cooperation with the hoisting frame.

Further, the mud discharging device comprises a mud discharging box, a mud discharging pump, a mud inlet pipe and a mud outlet pipe, wherein the mud discharging box is arranged beside the working box on the horizontal plane, and the mud inlet pipe and the mud outlet pipe are arranged at the two ends of the mud discharging pump and are respectively connected with the working box and the mud discharging box.

Compared with the prior art, the beneficial effects of the utility model reside in that:

firstly, when leading-in sewage treatment, the operation of a working motor drives a driving disc to rotate, the driving disc rotates to drive a rotating disc to rotate, the rotating disc rotates to drive five rotating blocks to rotate, so that a sewage inlet hole is opened, sewage enters a working box to operate, and the flow of the sewage entering can be controlled to be opened and closed according to actual operation.

Secondly, when sewage enters the working box, the driving motor drives the driving gear to rotate, the driving gear drives the rotating gear to rotate, the rotating gear drives the rotating rod to rotate, the rotating rod rotates to drive the rotating block to rotate, the rotating block rotates to drive the first sliding block to move in the bearing platform, the first sliding block drives the first connecting plate to move the first solid-liquid separation plate, the rotating block rotates to drive the driving frame to move, the driving frame moves to drive the fixing rod to move, the fixing rod drives the second sliding block to move in the placing groove of the bearing platform, the second sliding block moves to drive the second connecting plate to move, the second connecting plate moves to drive the second solid-liquid separation plate to move on the first solid-liquid separation plate, so that the first solid-liquid separation plate and the second solid-liquid separation plate move back and forth in a mutually crossed manner to filter the sewage discharged into the working box, the efficiency of solid-liquid separation is improved.

Thirdly, when the accumulated scum on the filter plate is too much, the filter plate needs to be replaced, the rotating motor drives the belt to swing the lifting frame, the lifting frame swings to drive the Y-shaped fixed rod to move, the Y-shaped fixed rod moves to drive the filter plate to upwards lift the two clamping blocks, the filter plate is lifted to the outside of the work box, and the scum is not contained in the water flowing into the clean water tank after the filtering operation of the filter plate.

Fourthly, when the sludge of the solid-liquid separation device is too much accumulated, the sludge discharge pump operates at the moment, the sludge on the solid-liquid separation device is discharged through the sludge discharge pump by the sludge inlet pipe in the working box, and the sludge is discharged into the sludge discharge box through the sludge outlet pipe to complete the operation, so that the cleanness and tidiness of the equipment are kept.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a partial perspective sectional view of the present invention;

FIG. 3 is a partial physical sectional view of the sewage valve of the present invention;

FIG. 4 is a schematic view of a partial three-dimensional structure of the solid-liquid separation device of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the filtering device of the present invention.

Reference numerals:

the sewage treatment device comprises a working box 1, a sewage valve 2, a working motor 21, a working motor base 22, a driving disc 23, a rotating disc 24, a rotating block 25, a solid-liquid separation device 3, a supporting platform 31, a driving motor 32, a driving motor base 33, a driving gear 34, a rotating gear 35, a rotating rod 36, a rotating block 37, a driving frame 38, a fixing rod 39, a first sliding block 391, a second sliding block 392, a first solid-liquid separation plate 393, a second solid-liquid separation plate 394, a first connecting plate 395, a second connecting plate 396, a positioning spring 397, a positioning rod 398, a filtering device 4, a filtering supporting plate 41, a rotating motor 42, a belt 43, a fixing seat 44, a lifting frame 45, a Y-shaped fixing rod 46, a filtering plate 47, a clamping block 48, a clean water box 5, a sludge discharge device 6, a sludge discharge box 61, a sludge discharge pump 62, a sludge inlet pipe 63 and a sludge outlet pipe 64.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following description is made with reference to fig. 1 to 5, an embodiment of the present invention provides a sewage air-flotation treatment apparatus without residual scum, including a work box 1, a sewage valve 2, a solid-liquid separation device 3, a filtering device 4, a clean water tank 5 and a sludge discharge device 6, where the work box 1 is placed on a horizontal plane, the sewage valve 2 is installed on a side wall of the work box 1, the work box 1 is provided with a sewage inlet hole communicated with the sewage valve 2, the solid-liquid separation device 3 is installed on a side wall in the work box 1, the filtering device 4 is installed at the top of the work box 1, the clean water tank 5 is installed on a side wall of the work box 1, the clean water tank 5 and the work box 1 are provided with water outlet holes communicated with each other, the sludge discharge device 6 is installed at a side of the work box 1, and the sludge discharge device 6 is provided with a sludge discharge hole communicated with the work box 1; the sewage valve 2 controls the flow of sewage to be opened and closed according to actual operation, the solid-liquid separation device 3 performs filtering solid-liquid separation operation, the solid-liquid separation efficiency is improved, the filter plate 47 is replaced by the filter device 4, it is ensured that water flowing into the clean water tank 5 after the filtering operation of the filter plate 47 does not contain scum, and the sludge discharge device 6 discharges sludge in the work tank 1.

Specifically, the sewage valve 2 comprises a working motor 21, a working motor base 22, a driving disc 23, a rotating disc 24 and five rotating blocks 25, wherein the working motor base 22 is installed on the side wall of the working box 1, the working motor 21 is installed on the working motor base 22, the driving disc 23 is installed on a main shaft of the working motor 21 and is in transmission fit with the main shaft of the working motor 21, the rotating disc 24 is installed on the side wall of the working box 1 and is in rotational fit with the driving disc 23, a sliding groove and a hole are formed in the rotating disc 24, and the five rotating blocks 25 are respectively installed on the rotating disc 24 and are in rotational fit with the rotating disc 24; when leading-in sewage is treated, the operation of the working motor 21 drives the driving disc 23 to rotate, the driving disc 23 rotates to drive the rotating disc 24 to rotate, the rotating disc 24 rotates to drive the five rotating blocks 25 to rotate, so that the sewage inlet hole is opened, the sewage enters the working box 1 to operate, and the flow of the sewage entering can be controlled to be opened and closed according to actual operation.

Specifically, the solid-liquid separation device 3 includes a support table 31, a driving motor 32, a driving motor base 33, a driving gear 34, a rotating gear 35, a rotating rod 36, a rotating block 37, a driving frame 38, a fixing rod 39, a first sliding block 391, a second sliding block 392, a first solid-liquid separation plate 393, a second solid-liquid separation plate 394, a first connecting plate 395, a second connecting plate 396, four positioning springs 397 and eight positioning rods 398, the support table 31 is installed on a side wall in the work box 1, the driving motor base 33 is installed on a side wall in the work box 1, the driving motor 32 is installed on the driving motor base 33, the driving gear 34 is installed on a main shaft of the driving motor 32 and is in transmission fit with the main shaft of the driving motor 32, a placing groove is arranged in the support table 31, the first sliding block 391 and the second sliding block 392 are installed on the support table 31 and are in sliding fit with the support table 31, one end of the rotating rod 36 is mounted on the top of the first sliding block 391, the rotating gear 35 is mounted on the rotating rod 36 and is in rotating fit with the rotating rod 36, the rotating gear 35 is engaged with the driving gear 34, the rotating block 37 is mounted on the top of the first sliding block 391 and is sleeved on the rotating rod 36, the rotating block 37 is in rotating fit with the rotating rod 36, one end of the driving rack 38 is mounted on the rotating block 37, the fixing rod 39 is mounted on the top of the second sliding block 392, the other end of the driving rack 38 is connected with the fixing rod 39, the first connecting plate 395 is mounted on the side wall of the first sliding block 391, the second connecting plate 396 is mounted on the side wall of the second sliding block 392, the first solid-liquid separation plate 393 is mounted on the first connecting plate 395, the second solid-liquid separation plate 394 is mounted on the second connecting plate 396, and the first solid-liquid separation plate 393 is in sliding fit with the second solid-liquid separation plate 394, the eight positioning rods 398 are respectively arranged at two ends in the slot of the supporting platform 31, on two side walls of the first sliding block 391 and on two side walls of the second sliding block 392, and two ends of the four positioning springs 397 are respectively sleeved on two of the positioning rods 398; when sewage enters the work box 1, the driving motor 32 drives the driving gear 34 to rotate, the driving gear 34 drives the rotating gear 35 to rotate, the rotating gear 35 drives the rotating rod 36 to rotate, the rotating rod 36 drives the rotating block 37 to rotate, the rotating block 37 drives the first sliding block 391 to move in the bearing platform 31, the first sliding block 391 drives the first connecting plate 395 to move the first solid-liquid separating plate 393, the rotating block 37 drives the driving rack 38 to move, the driving rack 38 drives the fixing rod 39 to move, the fixing rod 39 drives the second sliding block 392 to move in the placing groove of the bearing platform 31, the second sliding block 392 drives the second connecting plate 396 to move, the second connecting plate 396 drives the second solid-liquid separating plate 393 to move on the first solid-liquid separating plate 393, so that the first solid-liquid separating plate 393 and the second solid-liquid separating plate 394 can move back and forth in an intersecting manner to carry out solid-liquid separation operation on the sewage discharged into the work box 1, the efficiency of solid-liquid separation is improved.

Specifically, the filtering device 4 comprises a filtering support plate 41, a rotating motor 42, a belt 43, a fixing seat 44, a lifting frame 45, a Y-shaped fixing rod 46, a filtering plate 47 and two clamping blocks 48, wherein the filtering support plate 41 is installed at the top of the working box 1, the rotating motor 42 is installed on the side wall of the filtering support plate 41, the fixing seat 44 is installed on the side wall of the filtering support plate 41, the lifting frame 45 is installed on the fixing seat 44 and is in rotating fit with the fixing seat 44, the belt 43 is sleeved on the spindle of the rotating motor 42 and the lifting frame 45, the belt 43 arranged on the filtering support plate 41 can pass through a through hole, the two clamping blocks 48 are symmetrically installed on the side wall of the filtering support plate 41, the filtering plate 47 is placed between the two clamping blocks 48 and is in sliding fit with the two clamping blocks 48, one end of the Y-shaped fixing rod 46 is installed on the filtering plate 47 and is in rotating fit with the filtering plate 47, the other two ends of the Y-shaped fixing rod 46 are connected with the lifting frame 45 and are in hinged fit with the lifting frame 45; when accumulational dross is too much on the filter 47, need carry out the change to filter 47, rotating electrical machines 42 function this moment and drive belt 43 and make hoisting frame 45 swing, hoisting frame 45 swings and drives Y type dead lever 46 and remove, Y type dead lever 46 removes and drives filter 47 and upwards promote on two block 48, promote filter 47 to the work box 1 outside change the operation to filter 47, guarantee that the water that flows into in clear water tank 5 behind filter 47's the filtering operation does not contain the dross.

Specifically, the sludge discharging device 6 comprises a sludge discharging box 61, a sludge discharging pump 62, a sludge inlet pipe 63 and a sludge outlet pipe 64, wherein the sludge discharging box 61 is placed on the horizontal plane and positioned beside the working box 1, and the sludge inlet pipe 63 and the sludge outlet pipe 64 are arranged at two ends of the sludge discharging pump 62 and respectively connected with the working box 1 and the sludge discharging box 61; when the sludge accumulation of the solid-liquid separation device 3 is excessive, the sludge discharge pump 62 is operated, the sludge on the solid-liquid separation device 3 is discharged through the sludge discharge pump 62 by the sludge inlet pipe 63 in the working box 1, and then the sludge is discharged into the sludge discharge box 61 through the sludge outlet pipe 64 to complete the operation, so that the cleanness of the equipment is kept.

The working principle is as follows: when the imported sewage is treated, the operation of the working motor 21 drives the driving disc 23 to rotate, the driving disc 23 rotates to drive the rotating disc 24 to rotate, the rotating disc 24 rotates to drive the five rotating blocks 25 to rotate, so that the sewage water inlet hole is opened, the sewage water enters the working box 1, at the moment, the solid-liquid separation device 3 operates the driving motor 32 to drive the driving gear 34 to rotate, the driving gear 34 rotates to drive the rotating gear 35 to rotate, the rotating gear 35 rotates to drive the rotating rod 36 to rotate, the rotating rod 36 rotates to drive the rotating block 37 to rotate, the rotating block 37 rotates to drive the first sliding block 391 to move in the bearing platform 31, the first sliding block 391 drives the first connecting plate 395 to move the first solid-liquid separation plate 393, the rotating block 37 rotates to drive the driving frame 38 to move, the driving frame 38 moves to drive the fixing rod 39 to move, and the fixing rod 39 drives the second sliding block 392 to move in the placing groove of the bearing platform 31, the second slide block 392 moves to drive the second connecting plate 396 to move, the second connecting plate 396 moves to drive the second solid-liquid separating plate 394 to move on the first solid-liquid separating plate 393, so that the first solid-liquid separating plate 393 and the second solid-liquid separating plate 394 can move back and forth in an intersecting manner to filter the solid-liquid separating operation of the sewage discharged into the working box 1, when the solid-liquid separating operation of the sewage is performed, the sewage flows out through the filter plate, when the scum accumulated on the filter plate 47 is excessive, the filter plate 47 needs to be replaced, at the moment, the rotating motor 42 operates to drive the belt 43 to swing the lifting frame 45, the lifting frame 45 swings to drive the Y-shaped fixing rod 46 to move, the Y-shaped fixing rod 46 moves to drive the filter plate 47 to lift upwards on the two clamping blocks 48, the filter plate 47 is lifted out of the working box 1 to perform the replacing operation of the filter plate 47, and the water flowing into the clean water box 5 after the filtering operation of the filter plate 47 does not contain scum, when the sludge accumulation of the solid-liquid separation device 3 is excessive, the sludge discharge pump 62 is operated, the sludge on the solid-liquid separation device 3 is discharged through the sludge discharge pump 62 by the sludge inlet pipe 63 in the working tank 1, and the sludge is discharged into the sludge discharge tank 61 through the sludge outlet pipe 64 to complete the operation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (5)

1. The sewage air-flotation treatment device without residual scum is characterized by comprising a working box (1), a sewage valve (2), a solid-liquid separation device (3), a filtering device (4), a clean water box (5) and a sludge discharge device (6), wherein the working box (1) is placed on a horizontal plane, the sewage valve (2) is installed on the side wall of the working box (1), a sewage inlet hole communicated with the sewage valve (2) is formed in the working box (1), the solid-liquid separation device (3) is installed on the side wall in the working box (1), the filtering device (4) is installed at the top of the working box (1), the clean water box (5) is installed on the side wall of the working box (1), a water outlet hole communicated with the working box (1) is formed in the clean water box (5), and the sludge discharge device (6) is installed beside the working box (1), the sludge discharge device (6) is provided with a sludge discharge hole communicated with the working box (1).

2. The air flotation treatment device for sewage without residual scum according to claim 1, wherein: sewage valve (2) are including work motor (21), work motor cabinet (22), driving-disc (23), rotary disk (24) and five rotatory piece (25), install on the lateral wall of work case (1) work motor cabinet (22), install on work motor cabinet (22) work motor cabinet (21), driving-disc (23) install on the main shaft of work motor (21) and with work motor (21) spindle drive cooperation, rotary disk (24) install on the lateral wall of work case (1) and with driving-disc (23) normal running fit, be equipped with spout and hole on rotary disk (24), five rotatory piece (25) are installed respectively on rotary disk (24) and with rotary disk (24) normal running fit.

3. The air flotation treatment device for sewage without residual scum according to claim 1, wherein: the solid-liquid separation device (3) comprises a bearing platform (31), a driving motor (32), a driving motor seat (33), a driving gear (34), a rotating gear (35), a rotating rod (36), a rotating block (37), a driving frame (38), a fixing rod (39), a first sliding block (391), a second sliding block (392), a first solid-liquid separation plate (393), a second solid-liquid separation plate (394), a first connecting plate (395), a second connecting plate (396), four positioning springs (397) and eight positioning rods (398), wherein the bearing platform (31) is installed on the side wall in the work box (1), the driving motor seat (33) is installed on the side wall in the work box (1), the driving motor (32) is installed on the driving motor seat (33), the driving gear (34) is installed on the main shaft of the driving motor (32) and is in transmission fit with the main shaft of the driving motor (32), a placing groove is arranged in the bearing platform (31), the first sliding block (391) and the second sliding block (392) are installed on the bearing platform (31) and are in sliding fit with the bearing platform (31), one end of the rotating rod (36) is installed at the top of the first sliding block (391), the rotating gear (35) is installed on the rotating rod (36) and is in rotating fit with the rotating rod (36), the rotating gear (35) is meshed with the driving gear (34), the rotating block (37) is installed at the top of the first sliding block (391) and is sleeved on the rotating rod (36), the rotating block (37) is in rotating fit with the rotating rod (36), one end of the driving frame (38) is installed on the rotating block (37), the fixing rod (39) is installed at the top of the second sliding block (392), the other end of the driving frame (38) is connected with the fixing rod (39), and the first connecting plate (395) is installed on the side wall of the first sliding block (31), the second connecting plate (396) is installed on the side wall of the second sliding block (392), the first solid-liquid separation plate (393) is installed on the first connecting plate (395), the second solid-liquid separation plate (394) is installed on the second connecting plate (396), the first solid-liquid separation plate (393) is in sliding fit with the second solid-liquid separation plate (394), the eight positioning rods (398) are respectively installed on two ends in slots of the bearing platform (31), two side walls of the first sliding block (391) and two side walls of the second sliding block (392), and two ends of the four positioning springs (397) are respectively sleeved on the two positioning rods (398).

4. The air flotation treatment device for sewage without residual scum according to claim 1, wherein: the filtering device (4) comprises a filtering supporting plate (41), a rotating motor (42), a belt (43), a fixed seat (44), a lifting frame (45), a Y-shaped fixed rod (46), a filtering plate (47) and two clamping blocks (48), wherein the filtering supporting plate (41) is arranged at the top of the working box (1), the rotating motor (42) is arranged on the side wall of the filtering supporting plate (41), the fixed seat (44) is arranged on the side wall of the filtering supporting plate (41), the lifting frame (45) is arranged on the fixed seat (44) and is in running fit with the fixed seat (44), the belt (43) is sleeved on the main shaft of the rotating motor (42) and the lifting frame (45), the filtering supporting plate (41) is provided with the belt (43) which can pass through a perforation, the two clamping blocks (48) are symmetrically arranged on the side wall of the filtering supporting plate (41), the filtering plate (47) is arranged between the two clamping blocks (48) and is in sliding fit with the two clamping blocks (48), one end of the Y-shaped fixing rod (46) is installed on the filter plate (47) and is in running fit with the filter plate (47), and the other two ends of the Y-shaped fixing rod (46) are connected with the lifting frame (45) and are in hinged fit with the lifting frame (45).

5. The air flotation treatment device for sewage without residual scum according to claim 1, wherein: mud discharging device (6) are including mud discharging case (61), mud discharging pump (62), advance mud pipe (63) and play mud pipe (64), mud discharging case (61) are placed and are located the side of work box (1) on the horizontal plane, the both ends of mud discharging pump (62) are equipped with into mud pipe (63) and play mud pipe (64) and are connected with work box (1) and mud discharging case (61) respectively.

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