CN219031971U - Chemical wastewater treatment device - Google Patents

Abstract

The utility model relates to the field of wastewater treatment, in particular to a chemical wastewater treatment device, which is characterized in that a secondary filter device is arranged in a secondary filter tank, the secondary filter device comprises a filter screen cylinder, two ends of the filter screen cylinder are of an opening structure, a pipeline between a wastewater collection tank and the secondary filter tank extends into the filter screen cylinder, two ends of the filter screen cylinder are connected with the side wall of the secondary filter tank through a slewing bearing, an outer ring gear of the slewing bearing at one end is meshed with a driving gear, the driving gear is arranged on a driving shaft of a driving motor, and the driving motor is fixedly arranged outside the secondary filter tank, so that the purification effect and the purification speed are improved; the flocculation reaction tank is internally provided with a stirring device, and the hyperboloid impeller of the stirring device obtains water body exchange with a larger area, so that the stirring effect is improved.

Description

Chemical wastewater treatment device

Technical Field

The utility model relates to the field of wastewater treatment, in particular to a chemical wastewater treatment device.

Background

The chemical wastewater is the wastewater such as process wastewater and cooling water discharged in chemical production, and if the wastewater is discharged without treatment, the wastewater can pollute water and harm human health and influence development, so that the chemical wastewater can be discharged after reaching the discharge standard, the existing treatment device can lead solid impurities to be positioned at the bottom through precipitation, and clean wastewater is obtained at the upper part, but the effect is not good enough due to lower precipitation efficiency.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a chemical wastewater treatment device.

The technical scheme of the utility model is realized as follows: the utility model provides a chemical wastewater treatment device, including the waste water collecting tank of UNICOM in proper order, secondary filter tank, PH equalizing basin, flocculation reaction tank and sedimentation tank, be provided with agitating unit in the flocculation reaction tank, the waste water collecting tank is open-top structure, be provided with primary filter equipment in the waste water collecting tank, primary filter equipment includes the grid, the grid is placed in the open-top department of waste water collecting tank, be provided with secondary filter equipment in the secondary filter tank, secondary filter equipment includes the filter screen section of thick bamboo, the both ends of filter screen section of thick bamboo are open structure, pipeline between waste water collecting tank and the secondary filter tank extends to in the filter screen section of thick bamboo, the both ends of filter screen section of thick bamboo are connected with secondary filter tank lateral wall through slewing bearing, slewing bearing's outer lane gear engagement of one end has the driving gear, the driving gear is installed on driving motor's driving shaft, driving motor fixed mounting is in the outside of secondary filter tank, be provided with back flush device in the filter screen section of thick bamboo, back flush device includes the collecting tank, the filter tank horizontal cross filter screen section of thick bamboo, the back flush pipe is installed to the top of thick bamboo, back flush pipe fixed mounting is in the open-top of secondary filter tank, a plurality of shower heads are installed to the bottom of back flush pipe, the both ends of collecting tank fixed connection is connected with the two lateral walls of secondary filter tank on the lateral wall of secondary filter tank, the collecting pipe is the water collecting pipe is the extension type of collecting pipe, and the water outlet connection is the outside the level of the filtering tank L.

The longitudinal section of the collecting tank is of a groove type structure, and the collecting tank is arranged in a downward inclined mode.

The end face of the inner ring of the slewing bearing is fixedly connected with the side wall of the secondary filter tank, and the end face of the outer ring of the slewing bearing is fixedly connected with the end part of the filter screen cylinder.

The stirring device comprises a stirring motor, the stirring motor is vertically arranged on a mounting plate, the mounting plate is fixedly arranged at the opening of the top of the flocculation reaction tank, a driving shaft of the stirring motor extends into the flocculation reaction tank, and the bottom of a driving shaft of the stirring motor is connected with a hyperboloid impeller.

The bottom of the sedimentation tank is provided with an inclined tube filler, the bottom of the sedimentation tank, which is positioned in the inclined tube filler, is in a conical bucket shape, the bottom of the sedimentation tank is connected with a sludge pump, and the sludge pump is connected with a backwashing water outlet tank through a pipeline.

The upper part of the sedimentation tank is connected with a sand filtration tank and an active carbon filtration tank through a pipeline, and the active carbon filtration tank is connected with a clean water tank through a pipeline.

The inside of the sand filtration tank is sequentially provided with a zeolite layer and a shale layer from top to bottom; the zeolite grain size of the zeolite layer is 70-80mm, and the shale grain size of the shale layer is 50-60mm.

The technical scheme of the utility model has the following positive effects: the utility model is provided with a wastewater collection tank, a secondary filter tank, a PH regulating tank, a flocculation reaction tank and a sedimentation tank; the secondary filter device and the back flushing filter device are arranged in the secondary filter tank, the secondary filter device enables impurity particles to be left in the filter screen cylinder through the filter screen cylinder, water flows out through the water outlet holes, impurities are filtered and collected, the purifying effect is improved, and the purifying speed is improved; the spray head of the back flushing device cleans the filter screen cylinder, the transmission motor drives the filter screen cylinder to rotate, the particle impurities enter the collecting tank, and finally the particle impurities are discharged into a back flushing water pool through the collecting pipe; after secondary filtration, the water enters a flocculation reaction tank, a stirring device is arranged in the flocculation reaction tank, a hyperboloid impeller of the stirring device obtains water exchange with a larger area, and the stirring effect is improved; the inclined tube filler is placed in the sedimentation tank, and the inclined tube filler adsorbs particles to accelerate sedimentation, so that the wastewater treatment effect is improved; the bottom pumps the sludge to a backflushing water pool through a sludge pump; the precipitated wastewater sequentially passes through a sand filtration tank and an active carbon filtration tank, absorbs harmful bacteria, peculiar smell and the like in the water, and is finally discharged into a clean water tank.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic top view of the structure of a water collection tank, a secondary filtration tank, a pH adjusting tank, a flocculation reaction tank, a sedimentation tank and a backwash water tank.

Fig. 3 is a schematic structural diagram of a specific embodiment.

In the figure: 1, a waste water collecting tank; 2 a secondary filter tank; 3, a flocculation reaction tank; 4, a sedimentation tank; 5 grating; 7, a filter screen cylinder; 8, slewing bearing; a 10PH regulating tank; 11 a driving gear; 12, a transmission motor; 13 a collection tank; 14 back flushing the pipe; 15 clean water tanks; a 16 zeolite layer; 17 strata; 18 collecting pipes; 19 spray heads; 20 back flushing the water pool; 21 inclined tube filler; 22 sludge pumps; 23 sand filtration tank; 24 activated carbon filter canister; 25 stirring motor; a mounting plate 26; 27 hyperboloid impeller.

Detailed Description

As shown in fig. 1-3, a chemical wastewater treatment device comprises a wastewater collection tank 1, a secondary filter tank 2, a PH regulating tank 10, a flocculation reaction tank 3 and a sedimentation tank 4 which are communicated in sequence, wherein a stirring device is arranged in the flocculation reaction tank 3, the wastewater collection tank 1 is of a top opening structure, a primary filter device is arranged in the wastewater collection tank, the primary filter device comprises a grid 5, the grid 5 is arranged at the top opening of the wastewater collection tank 1, a secondary filter device is arranged in the secondary filter tank 2, the secondary filter device comprises a filter screen cylinder 7, two ends of the filter screen cylinder 7 are of an opening structure, a pipeline between the wastewater collection tank 1 and the secondary filter tank 2 extends into the filter screen cylinder 7, two ends of the filter screen cylinder 7 are connected with the side wall of the secondary filter tank 2 through a slewing bearing 8, the outer ring gear of the slewing bearing 8 at one end is meshed with a driving gear 11, the driving gear 11 is arranged on a driving shaft of a driving motor 12, the driving motor 12 is fixedly arranged outside the secondary filter tank 2, a back flushing device is arranged in the filter screen barrel 7 and comprises a collecting tank 13, the collecting tank 13 horizontally penetrates through the filter screen barrel 7, a back flushing pipe 14 is arranged above the filter screen barrel 7, the back flushing pipe 14 is fixedly arranged at an opening of the secondary filter tank 2, a plurality of spray heads 19 are arranged at the bottom of the back flushing pipe 14, two ends of the collecting tank 13 are fixedly connected to two side walls of the secondary filter tank 2, a collecting pipe 18 is connected to the bottom of the collecting tank 13, the collecting pipe 18 is of an L-shaped structure, and the horizontal part of the collecting pipe 18 extends to the outside of the secondary filter tank 2 and is connected with a back flushing water washing pool 20;

specifically, the chemical wastewater is completely discharged into the wastewater collection tank 1, the wastewater is firstly subjected to primary filtration by the grid 5, the grid 5 is used for carrying out primary filtration on relatively large garbage impurities, then the wastewater enters the PH adjusting tank, the PH adjusting tank is used for adjusting the chemical wastewater, the technology is not the main innovation point of the technology, the wastewater enters the secondary filter tank 2 again through the PH adjusting tank 10, the secondary filter device is arranged in the secondary filter tank 2 for carrying out secondary filtration on the wastewater, and the specific process is as follows: the waste water flows into the filter screen cylinder 7 through the pipeline between the waste water collecting tank 1 and the secondary filter tank 2, the particle impurities are left in the filter screen cylinder 7, the water flows out from the holes of the filter screen cylinder 7, then the water enters the flocculation reaction tank 3 through the pipeline, the flocculation reaction tank 3 is added with flocculating agent, so that the flocculating agent and the waste water are fully fused, and continuously enter the sedimentation tank 4 for sedimentation, the filter screen cylinder 7 needs to be cleaned after the service time is long, the impurities in the filter screen cylinder 7 are cleaned through a backwashing system, and the working process of backwashing is as follows: the transmission motor 12 is started, the driving gear 11 rotates, the outer ring gear of the slewing bearing 8 meshed with the driving gear 11 rotates to drive the filter screen cylinder 7 to rotate, meanwhile, the back flushing pipe 14 is started, water is sprayed out of the spray header 19 to flush the filter screen cylinder 7, the filter screen cylinder 7 always rotates, and particulate impurities fall into the collecting tank 13 and are discharged into the back flushing water pool 20 through the collecting pipe 18.

The longitudinal section of the collecting tank 13 is of a groove type structure, and the collecting tank 13 is arranged obliquely downwards; the collecting pipe 18 is arranged at one end of the collecting tank 13 which is inclined downwards, so that the particle impurities easily slide to the collecting pipe 18, and accumulation is not easy to cause.

The end face of the inner ring of the slewing bearing 8 is fixedly connected with the side wall of the secondary filter tank 2, and the end face of the outer ring of the slewing bearing 8 is fixedly connected with the end part of the filter screen cylinder 7; the rotation of the filter screen drum 7 is achieved by the slewing bearing 8.

The stirring device comprises a stirring motor 25, the stirring motor 25 is vertically arranged on a mounting plate 26, the mounting plate 26 is fixedly arranged at an opening at the top of the flocculation reaction tank 3, a driving shaft of the stirring motor 25 extends into the flocculation reaction tank 3, and the bottom of the driving shaft of the stirring motor 25 is connected with a hyperboloid impeller 27; the bottom of the sedimentation tank 4 is provided with an inclined tube filler 21, the bottom of the sedimentation tank positioned in the inclined tube filler is in a conical bucket shape, the bottom of the sedimentation tank 4 is connected with a sludge pump 22, and the sludge pump 22 is connected with a backflushing water pool 20 through a pipeline; the flocculation reaction tank 3 is added with a flocculating agent to accelerate the precipitation of particles, the stirring motor 25 is started, the hyperboloid impeller 27 rotates, the stirring effect is improved, the water body exchange with a larger area is obtained, and the flocculating agent effect is better; the inclined tube filler 21 makes the particles more likely to be deposited at the bottom, and clear water is left on the inclined tube filler for further treatment; sludge deposited at the bottom of the sedimentation tank 4 is pumped into the backwash water tank 20 by a sludge pump 22.

The upper part of the sedimentation tank 4 is connected with a sand filtration tank 23 and an active carbon filtration tank 24 through a pipeline, and the active carbon filtration tank 24 is connected with a clean water tank 15 through a pipeline; the zeolite layer 16 and the shale layer 17 are sequentially arranged in the sand filter tank 23 from top to bottom; the zeolite grain size of the zeolite layer 16 is 70-80mm, and the shale grain size of the shale layer 17 is 50-60mm; the top of the sand filter tank 23 is a water inlet, the bottom is a water outlet, the zeolite grain diameter is larger than the shale grain diameter, the water is prevented from being blocked, the precipitated wastewater sequentially passes through the sand filter tank 23 and the activated carbon filter tank 24, harmful bacteria, peculiar smell and the like in the water are adsorbed, and finally the wastewater is discharged into the clean water tank 15.

Claims (7)

1. The utility model provides a chemical wastewater treatment device, includes the waste water collecting tank, secondary filter tank, PH equalizing basin, flocculation reaction pond and sedimentation tank of UNICOM in proper order, its characterized in that: the flocculation reaction tank is internally provided with a stirring device, the wastewater collection tank is of a top opening structure, the wastewater collection tank is internally provided with a primary filtering device, the primary filtering device comprises a grid, the grid is placed at the top opening of the wastewater collection tank, the secondary filtering tank is internally provided with a secondary filtering device, the secondary filtering device comprises a filter screen cylinder, two ends of the filter screen cylinder are of an opening structure, a pipeline between the wastewater collection tank and the secondary filtering tank extends into the filter screen cylinder, two ends of the filter screen cylinder are connected with the side walls of the secondary filtering tank through slewing bearings, an outer ring gear of one end of the slewing bearings is meshed with a driving gear, the driving gear is arranged on a driving shaft of a driving motor, the driving motor is fixedly arranged outside the secondary filtering tank, a back flushing device is arranged in the filter screen cylinder, the back flushing device comprises a collecting tank, the collecting tank horizontally penetrates through the filter screen cylinder, a back flushing pipe is arranged above the filter screen cylinder, the back flushing pipe is fixedly arranged at the opening of the secondary filtering tank, the bottom of the back flushing pipe is provided with a plurality of spray heads, two ends of the collecting tank are fixedly connected with the two side walls of the secondary filtering tank, the bottom of the collecting tank is connected with a collecting pipe, the collecting pipe is of an L-shaped structure, and the horizontal part of the collecting pipe extends to the outside of the secondary filtering tank and is connected with water outlet of the secondary filtering tank.

2. A chemical wastewater treatment apparatus according to claim 1, wherein: the longitudinal section of the collecting tank is of a groove type structure, and the collecting tank is arranged in a downward inclined mode.

3. A chemical wastewater treatment apparatus according to claim 1, wherein: the end face of the inner ring of the slewing bearing is fixedly connected with the side wall of the secondary filter tank, and the end face of the outer ring of the slewing bearing is fixedly connected with the end part of the filter screen cylinder.

4. A chemical wastewater treatment apparatus according to claim 1, wherein: the stirring device comprises a stirring motor, the stirring motor is vertically arranged on a mounting plate, the mounting plate is fixedly arranged at the opening of the top of the flocculation reaction tank, a driving shaft of the stirring motor extends into the flocculation reaction tank, and the bottom of a driving shaft of the stirring motor is connected with a hyperboloid impeller.

5. A chemical wastewater treatment apparatus according to claim 1, wherein: the bottom of the sedimentation tank is provided with an inclined tube filler, the bottom of the sedimentation tank, which is positioned in the inclined tube filler, is in a conical bucket shape, the bottom of the sedimentation tank is connected with a sludge pump, and the sludge pump is connected with a backwashing water outlet tank through a pipeline.

6. A chemical wastewater treatment apparatus according to claim 5, wherein: the upper part of the sedimentation tank is connected with a sand filtration tank and an active carbon filtration tank through a pipeline, and the active carbon filtration tank is connected with a clean water tank through a pipeline.

7. A chemical wastewater treatment apparatus according to claim 6, wherein: the inside of the sand filtration tank is sequentially provided with a zeolite layer and a shale layer from top to bottom; the zeolite grain size of the zeolite layer is 70-80mm, and the shale grain size of the shale layer is 50-60mm.

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