Waste water heavy metal waste residue recovery device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a wastewater heavy metal waste residue recovery device which comprises a recovery barrel, a residue outlet, a rotating shaft, a filter screen, a stepping driving assembly and a limiting assembly, a liquid inlet is formed in the top of the recycling bin, a liquid outlet is formed in the bottom of the recycling bin, a slag outlet is formed in the side face of the recycling bin, a rotating shaft is rotationally connected into the recycling bin, the four sets of filter screens are fixedly connected to the rotating shaft in a circumferential distribution mode, and the filter screens are arranged in an oblique angle mode; the stepping driving assembly is connected to one end of the rotating shaft and used for driving the rotating shaft to rotate in a stepping mode. According to the utility model, flowing sewage is rotationally filtered through a plurality of groups of rotatable filter screens, and a part of sewage is rotationally removed every time a part of sewage is filtered, so that non-stop continuous filtering of sewage flocculates is realized, the filtering efficiency of the equipment is improved, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater heavy metal waste residue recovery device. Background Art

[0002] Existing methods for recovering heavy metal residues from industrial wastewater include chemical precipitation, electrolysis, adsorption, membrane separation, and ion exchange. However, most of them use chemical precipitation, which involves adding a certain chemical substance to the industrial wastewater to react with certain soluble substances in the wastewater to generate insoluble salts that precipitate. This method is called chemical precipitation, and flocculants are generally used to convert heavy metals in the wastewater into flocs, which are then filtered and collected by precipitation.

[0003] After the existing filtration device completes filtration, it can only filter and collect the sediment once, which is inefficient and cannot observe the sedimentation of different batches of the same sewage inside the device in real time, and cannot determine in real time whether there is a problem with the sewage; when the existing filtration device is filtering, flocculants are easily accumulated, causing the filter screen to be clogged. Utility Model Content

[0004] The purpose of the utility model is to provide a wastewater heavy metal waste residue recovery device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A wastewater heavy metal waste residue recovery device, comprising a recovery barrel, a slag outlet, a rotating shaft, a filter screen, a stepping drive assembly, and a limit assembly;

[0007] The top of the recovery barrel is provided with a liquid inlet, the bottom of the recovery barrel is provided with a liquid discharge port, the side of the recovery barrel is provided with a slag discharge port, the recovery barrel is rotatably connected with a rotating shaft, the filter screen is provided with four groups, the four groups of filter screens are distributed circumferentially and fixedly connected to the rotating shaft, and the filter screens are arranged at an oblique angle;

[0008] The stepping drive assembly is connected to one end of the rotating shaft and is used to drive the rotating shaft to rotate step by step;

[0009] The limiting assembly is connected to the other end of the rotating shaft and is used to limit the rotating shaft in one direction, thereby preventing the rotating shaft from reversing or over-rotating.

[0010] As a further solution of the present invention: a baffle is fixedly connected between the filter screen and the rotating shaft, and a sealing ring is fixedly connected to one end of the filter screen away from the rotating shaft.

[0011] As a further solution of the present invention: the stepping drive assembly includes a driving gear fixedly connected to one end of the rotating shaft, a mounting bracket fixedly connected to the outer wall of the recycling barrel, a motor fixedly connected to the mounting bracket, a special-shaped gear fixedly connected to the motor, the special-shaped gear is a quarter gear, and the special-shaped gear and the driving gear are meshed with each other.

[0012] As a further solution of the present invention: the limiting assembly includes a turntable fixedly connected to the other end of the rotating shaft, and four groups of limiting rotating teeth are fixedly connected to the turntable.

[0013] As a further solution of the present invention: a fixing frame is fixedly connected to the outer wall of the recycling barrel, a telescopic rod is slidably connected inside the fixing frame, one end of the telescopic rod is fixedly connected to a mounting plate, a limiting tooth is fixedly connected to the mounting plate, and the limiting tooth cooperates with the rotating limiting tooth.

[0014] As a further solution of the present invention: the other end of the telescopic rod is fixedly connected to a stopper, and a spring sleeved on the telescopic rod is provided between the mounting plate and the fixing frame.

[0015] Compared with the existing technology, the beneficial effect of the present invention is that the present invention uses multiple groups of rotatable filter screens to rotate and filter the flowing sewage. Every time a part is filtered out, another part will be rotated and removed, thereby realizing non-stop continuous filtration of sewage flocs, improving the filtration efficiency of the equipment and improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a wastewater heavy metal waste residue recovery device in the utility model.

[0017] Figure 2 This is a structural schematic diagram of a wastewater heavy metal waste residue recovery device in the utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of a wastewater heavy metal waste residue recovery device in the utility model.

[0019] Figure 4 This is a cross-sectional view of a wastewater heavy metal waste residue recovery device in the utility model.

[0020] In the figure: 1-recovery bucket, 2-liquid inlet, 3-liquid discharge port, 4-slag outlet, 5-guide groove, 6-rotating shaft, 7-baffle, 8-filter, 9-sealing ring, 10-turntable, 11-limiting rotating gear, 12-fixing frame, 13-telescopic rod, 14-block, 15-mounting plate, 16-limiting latch, 17-spring, 18-driving gear, 19-mounting frame, 20-motor, 21-special-shaped gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See Figures 1 to 4 In the embodiment of the utility model, a wastewater heavy metal waste residue recovery device includes a recovery bucket 1, a residue outlet 4, a rotating shaft 6, a filter screen 8, a stepping drive assembly and a limit assembly; the top of the recovery bucket 1 is provided with a liquid inlet 2, the bottom of the recovery bucket 1 is provided with a liquid discharge port 3, the side of the recovery bucket 1 is provided with a residue outlet 4, the recovery bucket 1 is rotatably connected with a rotating shaft 6, the filter screen 8 is provided with four groups, and the four groups of filter screens 8 are circumferentially distributed and fixedly connected to the rotating shaft 6, and the filter screen 8 is set at an oblique angle; the stepping drive assembly is connected to one end of the rotating shaft 6 for driving the rotating shaft 6 to rotate in steps; the limit assembly is connected to the other end of the rotating shaft 6 for rotating the rotating shaft 6 is limited in one direction to prevent the rotating shaft 6 from reversing or over-rotating. The utility model injects sewage into the recovery barrel 1 through the liquid inlet 2. At this time, the flocculants in the sewage are filtered through the filter screen 8. Since the filter screen 8 is set at an oblique angle, the filtered flocculants slide down to the end of the filter screen 8 close to the rotating shaft 6 under the action of gravity, thereby preventing the flocculants from clogging the filter screen 8. Thereafter, the rotating shaft 6 is driven to rotate in steps by the stepping drive component, thereby driving the rotating shaft 6 to rotate a quarter of a turn. At this time, the filter screen 8 with the flocculants is turned over to the slag outlet 4, and the next group of filter screens 8 rotates to the bottom of the liquid inlet 2. At this time, the filtered flocculants are discharged along the slag outlet 4 under the action of gravity.

[0023] In one embodiment of the present invention, see Figures 1 to 4 A baffle 7 is fixedly connected between the filter screen 8 and the rotating shaft 6, and a sealing ring 9 is fixedly connected to the end of the filter screen 8 away from the rotating shaft 6. The utility model blocks the water flow near the rotating shaft 6 by setting the baffle 7, thereby preventing sewage from being discharged along the slag outlet 4. At the same time, the filter screen 8 and the inner wall of the recovery barrel 1 are sealed by the setting of the sealing ring 9, thereby preventing sewage from leaking.

[0024] In one embodiment of the present invention, see Figures 1 to 4The stepping drive assembly includes a driving gear 18 fixedly connected to one end of the rotating shaft 6, a mounting bracket 19 fixedly connected to the outer wall of the recycling bin 1, a motor 20 fixedly connected to the mounting bracket 19, a special-shaped gear 21 fixedly connected to the motor 20, the special-shaped gear 21 is a quarter gear, and the special-shaped gear 21 is engaged with the driving gear 18. The stepping drive assembly drives the special-shaped gear 21 to rotate through the motor 20. When the special-shaped gear 21 rotates to engage with the driving gear 18, the special-shaped gear 21 drives the driving gear 18 to rotate, and the driving gear 18 drives the rotating shaft 6 to rotate. After that, when the special-shaped gear 21 rotates out of the driving gear 18, the special-shaped gear 21 no longer engages with the driving gear 18, and the special-shaped gear 21 no longer engages with the driving gear 18. At this time, the rotating shaft 6 no longer rotates.

[0025] In one embodiment of the present invention, see Figures 1 to 4 The limiting assembly includes a turntable 10 fixedly connected to the other end of the rotating shaft 6, and four groups of limiting rotating teeth 11 are fixedly connected to the turntable 10. A fixing frame 12 is fixedly connected to the outer wall of the recycling bin 1, and a telescopic rod 13 is slidably connected in the fixing frame 12. One end of the telescopic rod 13 is fixedly connected to a mounting plate 15, and a limiting latch 16 is fixedly connected to the mounting plate 15. The limiting latch 16 cooperates with the rotation limiting tooth. The other end of the telescopic rod 13 is fixedly connected to a stopper 14, and a spring 17 sleeved on the telescopic rod 13 is provided between the mounting plate 15 and the fixing frame 12. First, the limiting assembly elastically lifts the mounting plate 15 through the setting of the spring 17, and the mounting plate 15 drives the limiting latch 16 to insert into the limiting rotating tooth 11. The straight tooth surfaces of the limiting rotating tooth 11 and the limiting latch 16 are interference fit with each other. The rotating disc 10 is limited by the limit rotating gear 11 and the limit latch 16, and cannot rotate. Therefore, when the sewage flushes the filter screen 8, the impact force generated by the water flow cannot drive the filter screen 8 to rotate. Later, when the stepping drive assembly drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the filter screen 8 to move, the rotating shaft 6 drives the rotating disc 10 to rotate. At this time, the limit rotating gear 11 and the oblique tooth surface of the limit latch 16 contact each other, thereby converting the rotary motion of the limit rotating gear 11 into a linear motion of the limit latch 16, and the limit latch 16 drives the mounting plate 15 to compress the spring 17, thereby driving the limit latch 16 away from the turntable 10, and then making the limit latch 16 pass over the limit rotating gear 11, so that the limit latch 16 limits the next set of limit rotating teeth 11, so that the filter screen 8 completes a set of step clamping limit.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wastewater heavy metal waste residue recovery device, characterized in that: Including recycling bucket, slag outlet, rotating shaft, filter screen, stepping drive assembly and limit assembly; The top of the recovery barrel is provided with a liquid inlet, the bottom of the recovery barrel is provided with a liquid discharge port, the side of the recovery barrel is provided with a slag discharge port, the recovery barrel is rotatably connected with a rotating shaft, the filter screen is provided with four groups, the four groups of filter screens are distributed circumferentially and fixedly connected to the rotating shaft, and the filter screens are arranged at an oblique angle; The stepping drive assembly is connected to one end of the rotating shaft and is used to drive the rotating shaft to rotate step by step; The limiting assembly is connected to the other end of the rotating shaft and is used to limit the rotating shaft in one direction, thereby preventing the rotating shaft from reversing or over-rotating.

2. The wastewater heavy metal waste residue recovery device according to claim 1, characterized in that: A baffle is fixedly connected between the filter screen and the rotating shaft, and a sealing ring is fixedly connected to one end of the filter screen away from the rotating shaft.

3. The wastewater heavy metal waste residue recovery device according to claim 1, characterized in that: The stepping drive assembly includes a driving gear fixedly connected to one end of the rotating shaft, a mounting bracket fixedly connected to the outer wall of the recycling barrel, a motor fixedly connected to the mounting bracket, and a special-shaped gear fixedly connected to the motor. The special-shaped gear is a quarter gear, and the special-shaped gear and the driving gear are meshed with each other.

4. The wastewater heavy metal waste residue recovery device according to claim 1, characterized in that: The limiting assembly includes a turntable fixedly connected to the other end of the rotating shaft, and four groups of limiting rotating teeth are fixedly connected to the turntable.

5. The wastewater heavy metal residue recovery device according to claim 4, characterized in that: A fixing frame is fixedly connected to the outer wall of the recycling barrel, a telescopic rod is slidably connected in the fixing frame, one end of the telescopic rod is fixedly connected to a mounting plate, a limiting tooth is fixedly connected to the mounting plate, and the limiting tooth cooperates with the rotation limiting tooth.

6. The wastewater heavy metal residue recovery device according to claim 5, characterized in that: The other end of the telescopic rod is fixedly connected with a stopper, and a spring sleeved on the telescopic rod is provided between the mounting plate and the fixing frame.

Images