CN217437968U - Air-washing disc magnetic separation device - Google Patents

Abstract

A gas washing disc magnetic separation device is mainly used for sewage treatment and purification and comprises an inclined plate sedimentation tank, a separation tank, a quartz sand filter tank and a magnetic seed recovery device which are connected in sequence, wherein a suction pump is installed on a water inlet pipeline of the inclined plate sedimentation tank, a connecting pipeline of the suction pump and the inclined plate sedimentation tank is connected with a flocculating agent adding device through a branch pipe, and a branch pipe connected with the magnetic seed adding device is arranged on a pipeline of the inclined plate sedimentation tank, which is communicated with the separation tank; the separation tank is the tapered rectangular cell body of uncovered bottom, and a overflow launder is equipped with in the top side edge, and the overflow launder passes through the pipeline and inserts quartz sand filtering ponds, and the separation tank cone bottom passes through pipe connection magnetic seed recovery unit, and a rotating device is installed at separation tank roof edge, is equipped with a pivot that flushes with the separation tank top surface on the rotating device, and cloth has a set of circular disk in the pivot, and disk top surface one side is equipped with one row of collection sediment fill, and collection sediment fill top has the pipeline to be connected with magnetic seed recovery unit. The device has the characteristics of high removal rate and long equipment service cycle.

Description

Air-washing disc magnetic separation device

Technical Field

The utility model relates to a separation device, mainly used sewage treatment and purification.

Background

The magnetic separation technology is a sewage treatment started in the seventies of the last century and is widely applied to treatment of food wastewater, oil-containing wastewater and steel wastewater. The current common magnetic separation process is a disc magnetic separator, which mainly adsorbs magnetic particles in sewage through a plurality of discs embedded with permanent magnets. Although the process has small power consumption and simple structure, the process is used for the sludge with weak magnetism, small magnetic field gradient, small adsorbability to the small-particle sludge, double addition of magnetic seeds and large raw material consumption, and the improvement on the structure to ensure that the removal efficiency of the device is the hotspot of current research.

The prior patent (application number: CN 201710001698.2) discloses a magnetic separation device, which solves the problems that the prior art can not effectively separate liquid and scrap iron, and more problems exist, the technical proposal is that the device comprises a placing frame, a mandrel is placed in the placing frame, a magnet block with a spiral path is arranged on the outer surface of the mandrel, a conveying cylinder is sleeved outside the mandrel, a gap is arranged between the conveying cylinder and the mandrel, two ends of the conveying cylinder are fixed with the placing frame, one end of the mandrel is placed below a liquid outlet, the other end of the mandrel is provided with a motor to drive the mandrel to rotate along the axis, a scraping plate for scraping the surface of the conveying cylinder is arranged at one end of the placing frame close to the motor, the spiral magnet can drive the iron block on the surface of the placing frame to move towards the conveying cylinder, and the scraping of the iron sheet or the scrap iron can be realized through the scraping plate when the motor moves to one end, the separation is full-automatic, and the cleaning is timely in the whole process. However, it is difficult to remove fine particles only by simple magnetic block adsorption separation.

Disclosure of Invention

The utility model aims at providing a gas washing disc magnetic separation device with high removal efficiency and long equipment service life aiming at the defects of the prior art device.

The gas washing disc magnetic separation device comprises an inclined plate sedimentation tank, a separation tank, a quartz sand filter tank and a magnetic seed recovery device which are sequentially connected through a pipeline, wherein a suction pump is arranged on a water inlet pipeline of the inclined plate sedimentation tank, a connecting pipeline of the suction pump and the inclined plate sedimentation tank is connected with a flocculating agent adding device through a branch pipe, and a pipeline, communicated with the separation tank, of the inclined plate sedimentation tank is connected with the magnetic seed adding device through a branch pipe; the separation tank is the tapered rectangular cell body in uncovered bottom, and a overflow launder is equipped with in the top side edge, and the overflow launder passes through the pipeline and inserts quartz sand filtering ponds, and separation tank cone bottom passes through pipe connection magnetic seed recovery unit, and a rotating device is installed at separation tank roof edge, is equipped with a pivot that flushes with the separation tank top surface on the rotating device, and cloth has a set of circular disk in the pivot, and disk top surface one side is equipped with one row of collection sediment fill, and the collection sediment fill is laminated with the disk mutually, and there is the pipeline at collection sediment fill top and is connected with magnetic seed recovery unit.

The sewage is mixed with the flocculating agent added by the flocculating agent adding device through the suction pump, and then enters the inclined plate sedimentation tank for primary sedimentation, the supernatant is mixed with the magnetic seeds added by the magnetic seed adding device through a pipeline and then automatically flows into the lower part of the separation tank, the rotating device starts to drive the magnetic disc to rotate, the sludge containing the magnetic seeds is adsorbed on the disc surface, is taken out through the rotation of the magnetic disc, falls into a sludge hopper, and then is collected into a magnetic seed recovery device through a pipeline for magnetic seed recovery, and the sludge is discharged through a pipeline; supernatant in the separation tank overflows to the quartz sand filter tank through the overflow groove to intercept fine particles in water, so that the effluent can be discharged after reaching the standard.

Furthermore, a vertical bracket is arranged on the side wall of the separation tank, an air washing device is arranged on the bracket, the air injection direction of an air nozzle of the air washing device is tangential to the ring surface of the magnetic disc, and the sludge adhered to the ring surface can be blown into the sludge collecting hopper 5.

Further, the magnetic seed recovery device is connected with the magnetic seed feeding device through a pipeline, a reflux pump is arranged on the pipeline, and the recovered magnetic seeds are pumped by the reflux pump to be recycled.

Furthermore, a sludge discharge pipeline at the bottom of the inclined plate sedimentation tank is converged into a sludge discharge pipeline of the magnetic seed recovery device.

Furthermore, a group of inclined plates are arranged in the inclined plate sedimentation tank, and the inclined angle between each inclined plate and the horizontal plane is 60 degrees.

Furthermore, a support bracket is arranged in the quartz sand filter tank, and a quartz sand layer is filled in the support bracket.

The utility model has the advantages that:

1. the process of intercepting the pollution particles for three times by utilizing the coagulating sedimentation, the magnetic separation and the quartz sand filtration can effectively remove large and small particle substances in the water body and ensure that the effluent quality reaches the discharge standard.

2. The magnetic disk surface is purged by using a gas washing mode, so that the magnetic powder-containing sludge can fall into the sludge collecting hopper to be collected, and the phenomenon of sludge adhesion on the magnetic disk surface is slowed down while magnetic seeds are recovered efficiently.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

In the figure: 1 flocculating agent adding device, 2 inclined plate sedimentation tanks, 2-1 inclined plates, 3 magnetic seed adding devices, 4 separating tanks, 4-1 magnetic discs, 4-2 rotating devices, 4-3 air washing devices, 4-4 air nozzles, 4-5 overflow tanks, 5 slag collecting hoppers, 6 quartz sand filtering tanks, 6-1 quartz sand layers, 7 magnetic seed recovery devices, 8 supports, 9 suction pumps, 10 reflux pumps and 11 pipelines.

Detailed Description

Example 1:

as shown in fig. 1, a gas-washing disc magnetic separation device comprises an inclined plate sedimentation tank 2, a separation tank 4, a quartz sand filter tank 6 and a magnetic seed recovery device 7 which are sequentially connected through a pipeline 11, wherein a suction pump 9 is installed on a water inlet pipeline of the inclined plate sedimentation tank 2, the connection pipeline 11 of the suction pump and the inclined plate sedimentation tank 2 is connected with a flocculating agent feeding device 1 through a branch pipe, the pipeline 11 for communicating the inclined plate sedimentation tank 2 and the separation tank 4 is connected with a magnetic seed feeding device 3 through a branch pipe, a group of inclined plates 2-1 are installed in the inclined plate sedimentation tank 2, and the inclined angle between each inclined plate 2-1 and a horizontal plane is 60 degrees; the magnetic seed recovery device 7 is connected with the magnetic seed adding device 3 through a pipeline 11, and a reflux pump 10 is arranged on the pipeline 11; the separation tank 4 is a rectangular tank body with an open bottom and a conical shape, a vertical bracket 8 is arranged on the side wall of the separation tank 5, an air washing device 4-3 is arranged on the bracket, and the air nozzle 4-4 air injection direction of the air washing device 4-3 is tangential to the ring surface of the magnetic disk 4-1; the side edge of the top is provided with an overflow trough 4-5, the overflow trough is connected to a quartz sand filter tank 6 through a pipeline 11, the conical bottom of the separation tank 4 is connected with a magnetic seed recovery device 7 through a pipeline 11, and a sludge discharge pipeline 11 of the magnetic seed recovery device 7 is communicated with a sludge discharge pipeline 11 at the bottom of the inclined plate sedimentation tank 4; a rotating device 4-2 is installed at the edge of the top wall of the separation tank 4, a rotating shaft which is flush with the top surface of the separation tank 4 is arranged on the rotating device 4-2, a group of round magnetic disks 4-1 are distributed on the rotating shaft, a row of slag collecting hoppers 5 are arranged on one side of the top surface of each magnetic disk 4-1, the slag collecting hoppers 5 are attached to the magnetic disks 4-1, and a pipeline 11 is arranged at the tops of the slag collecting hoppers 5 and connected with a magnetic seed recovery device 7; a bearing bracket is arranged in the quartz sand filter tank 6 and is used for bearing and filling the quartz sand layer 6-1.

The sewage is mixed with the flocculating agent added by the flocculating agent adding device 1 through the suction pump 9, and then enters the inclined plate sedimentation tank 2 for primary sedimentation, the supernatant is mixed with the magnetic seeds added by the magnetic seed adding device 3 through the pipeline 11 and then automatically flows into the lower part of the separation tank 4, the rotating device 4-2 starts the driving magnetic disk 4-1 to rotate, the sludge containing the magnetic seeds is adsorbed on the disk surface, is taken out through the rotation of the magnetic disk 4-1 and then falls into the sludge collecting hopper 5, and then is collected into the magnetic seed recovery device 7 through the pipeline 11 for magnetic seed recovery, and the sludge is discharged through the pipeline 11; the supernatant in the separation tank 5 overflows to a quartz sand filter tank 6 through an overflow groove 4-5 to intercept fine particles in water, so that the effluent can be discharged after reaching the standard.

Claims (6)

1. The utility model provides a gas washing disc magnetic separation device, includes the swash plate sedimentation tank, separation tank, quartz sand filtering ponds, the kind of magnetism recovery unit who connects gradually through the pipeline, its characterized in that: a suction pump is installed on a water inlet pipeline of the inclined plate sedimentation tank, a connecting pipeline of the suction pump and the inclined plate sedimentation tank is connected with a flocculating agent adding device through a branch pipe, and a branch pipe is arranged on a pipeline of the inclined plate sedimentation tank, which is communicated with the separation tank, and is connected with a magnetic seed adding device; the separation tank is the tapered rectangular cell body of uncovered bottom, and a overflow launder is equipped with in the top side reason, and the overflow launder passes through the pipeline and inserts quartz sand filtering ponds, and the separation tank is connected magnetism kind recovery unit through the pipeline at the end of tapering, and a rotating device is installed at separation tank roof edge, is equipped with a pivot that flushes with the separation tank top surface on the rotating device, and cloth has a set of circular disk in the pivot, and disk top surface one side is equipped with one row of album sediment fill, and collection sediment fill laminates with the disk mutually, and there is the pipeline to collect sediment fill top and is connected with magnetism kind recovery unit.

2. A gas-washed magnetic disc separator apparatus as claimed in claim 1, wherein: the side wall of the separation tank is provided with a vertical bracket, the bracket is provided with an air washing device, and the air nozzle of the air washing device jets air in a direction tangential to the ring surface of the magnetic disk.

3. A gas-washed magnetic disc separator apparatus as claimed in claim 1, wherein: the magnetic seed recovery device is connected with the magnetic seed feeding device through a pipeline, and a reflux pump is arranged on the pipeline.

4. A gas-washed magnetic disc separator apparatus as claimed in claim 1, wherein: the sludge discharge pipeline at the bottom of the inclined plate sedimentation tank is converged into the sludge discharge pipeline of the magnetic seed recovery device.

5. A gas-washed disc magnetic separation apparatus as claimed in claim 1, wherein: a group of inclined plates are arranged in the inclined plate sedimentation tank, and the inclined angle between each inclined plate and the horizontal plane is 60 degrees.

6. A gas-washed magnetic disc separator apparatus as claimed in claim 1, wherein: the quartz sand filter tank is internally provided with a bearing bracket which is filled with a quartz sand layer.

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