Paper product processing waste liquid treatment equipment

Abstract

The invention relates to the technical field of papermaking wastewater treatment, in particular to paper product processing waste liquid treatment equipment which comprises a treatment barrel, a rotary disc, flocculation cabinets, a liquid conveying pipe, flocculation pipes and a blow-off pipe, the rotary disc is rotationally installed at an opening in the bottom of the treatment barrel, the flocculation cabinets are fan-shaped, and the multiple sets of flocculation cabinets are evenly arranged in the circumferential direction of the rotary disc; the outer side wall faces of the flocculation cabinets abut against the rotary disc in a sealed mode, a set of stirrers are rotationally installed in each set of flocculation cabinets, the wall faces, close to the inner wall of the rotary disc, of the flocculation cabinets are provided with an upper liquid drainage plate and a lower liquid drainage plate in the vertical direction, and the upper liquid drainage plate and the lower liquid drainage plate are each provided with a liquid drainage hole. The liquid conveying pipe and the flocculation pipe are fixedly arranged on the upper side of the treatment cylinder, the blow-off pipe is fixedly installed at a notch in one side of the treatment cylinder, and the interior of the blow-off pipe is divided into an upper blow-off pipe body and a lower blow-off pipe body, the flocculation cabinet is driven to rotate alternately to be in butt joint with the blow-off pipe, flocculated waste liquid is separated, and the wastewater flocculation precipitation separation efficiency of the waste liquid is improved.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking wastewater treatment, in particular to a paper product processing wastewater treatment device. Background Art

[0002] The entire production process of paper products requires a large amount of water, which collects a large amount of industrial hazardous substances during the production process. Therefore, it is necessary to recycle and reuse the wastewater generated at each stage of the paper product production process. In the paper product production process, chemical precipitation, flotation treatment, and biological oxidation are usually used to treat the waste liquid.

[0003] At present, the traditional treatment process for paper processing wastewater is primary sedimentation or physicochemical flocculation sedimentation. The flocculation process has a high removal rate, especially for removing a large number of high-molecular-weight, difficult-to-degrade organic pollutants, which lays the foundation for the next step of biochemical treatment.

[0004] However, it is not convenient to separate the polymer produced by the flocculation of the waste liquid from the waste liquid during flocculation and sedimentation, which is inconvenient to discharge the wastewater after flocculation and sedimentation, thus increasing the wastewater treatment time and reducing the wastewater treatment efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a paper product processing waste liquid treatment equipment to solve the problem that when the paper product processing waste liquid is flocculated and precipitated, it is inconvenient to separate the polymer produced by the flocculation of the waste liquid from the waste liquid, and it is inconvenient to discharge the waste water after flocculation and precipitation, which increases the waste water treatment time and reduces the waste water treatment efficiency. To achieve the above object, the present invention provides a paper product processing waste liquid treatment device, comprising: A treatment cylinder fixedly mounted on a support surface by means of multiple sets of support legs; The rotary disc is rotatably mounted at the bottom opening of the treatment cylinder and driven to rotate intermittently by a rotary assembly mounted between multiple sets of supporting legs; A flocculation cabinet is fan-shaped, and multiple groups of the flocculation cabinets are evenly arranged along the circumference of the rotary disk. The outer wall of the flocculation cabinet is sealed against the rotary disk. A group of agitators are rotatably installed in each group of the flocculation cabinets. The agitators are driven to rotate by a driving motor at the bottom of the flocculation cabinet. The wall of the flocculation cabinet close to the inner wall of the rotary disk is respectively provided with an upper drainage plate and a lower drainage plate in the vertical direction, and drainage holes are provided on the upper drainage plate and the lower drainage plate; A liquid delivery pipe, fixedly arranged on the upper side of the treatment cylinder, is used to discharge the waste liquid into the flocculation cabinet; The flocculation tube is fixedly arranged on the upper side of the treatment cylinder and is arranged close to the liquid delivery tube, and is used to discharge the flocculation liquid into the flocculation cabinet to mix with the waste liquid; A sewage pipe is fixedly installed at the notch on one side of the treatment cylinder, wherein a partition is horizontally installed in the sewage pipe, and the partition is used to separate the sewage pipe into an upper sewage pipe and a lower sewage pipe, and the upper sewage pipe and the lower sewage pipe are connected to the upper drainage plate and the lower drainage plate respectively; When the flocculation tank is connected to the sewage pipe by the rotation of the rotary disk, the upper sewage pipe is first connected to the upper drainage plate for drainage, and then the lower sewage pipe is connected to the lower drainage plate for drainage.

[0006] As a further solution of the present invention, the rotating assembly includes a rotating column, a stepper motor, a transmission gear ring and a power gear; wherein the rotating column is coaxially fixedly installed on the bottom of the turntable, and a group of transmission gear rings are coaxially fixedly installed on the outer side of the rotating column; the stepper motor is fixedly installed on a reinforced bracket between multiple groups of support legs, and the power gear is coaxially fixedly installed on the output shaft of the stepper motor and meshes with the transmission gear ring for transmission.

[0007] As a further solution of the present invention, a group of sealing rings are correspondingly provided at the outer circles of the upper drainage plate and the lower drainage plate, and the sealing rings are used to seal the gap between the flocculation tank and the treatment cylinder.

[0008] As a further solution of the present invention, the upper liquid drainage plate and the lower liquid drainage plate are detachable and installed on the corresponding flocculation cabinet.

[0009] As a further solution of the present invention, a squeeze switch is fixed on the upper end surface of the flocculation cabinet, and a curved baffle is provided on the top of the treatment cylinder; when the squeeze switch is in squeeze contact with the curved baffle, the squeeze switch controls the drive motor at the bottom of the corresponding flocculation cabinet to rotate.

[0010] Compared with the prior art, the present invention designs a treatment cylinder, a rotating disk, a flocculation cabinet, an infusion tube, a flocculation tube and a sewage pipe. The rotating disk is rotatably installed at the bottom of the treatment cylinder, and multiple groups of flocculation cabinets are evenly arranged along the circumference of the rotating disk. The outer wall of the flocculation cabinet is sealed and abutted against the rotating disk. The upper drainage plate and the lower drainage plate are respectively provided on the wall surface of the flocculation cabinet close to the inner wall of the rotating disk in the vertical direction. The upper drainage plate and the lower drainage plate are both provided with drainage holes. The present invention separates the flocculated waste liquid by driving the flocculation cabinet to rotate alternately and connect with the sewage pipe, thereby improving the efficiency of flocculation and sedimentation separation of waste liquid and wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a paper product processing waste liquid treatment device in the present invention.

[0012] Figure 2 It is a schematic top view of a paper product processing waste liquid treatment device in the present invention.

[0013] Figure 3It is a side structural diagram of the flocculation cabinet in the present invention.

[0014] In the attached drawings: 1. treatment cylinder; 101. support leg; 102. reinforcement bracket; 2. sewage pipe; 201. upper sewage pipe; 202. lower sewage pipe; 3. infusion pipe; 4. flocculation tube; 5. baffle; 6. switch; 7. rotary column; 8. transmission gear ring; 9. driving gear; 10. stepping motor; 11. flocculation cabinet; 12. driving motor; 13. upper drainage plate; 14. lower drainage plate; 15. sealing ring; 16. agitator. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0016] like Figures 1 to 3 As shown, in an embodiment of the present invention, a paper product processing waste liquid treatment device includes: The treatment cylinder 1 is fixedly mounted on the support surface by means of a plurality of sets of support legs 101; The rotary disk is rotatably mounted at the bottom opening of the treatment cylinder 1 and driven to rotate intermittently by a rotary assembly mounted between multiple sets of support legs 101; The flocculation cabinet 11 is fan-shaped, and multiple groups of the flocculation cabinets 11 are evenly arranged along the circumference of the rotary disk. The outer wall surface of the flocculation cabinet 11 is sealed against the rotary disk. A group of agitators 16 are rotatably installed in each group of the flocculation cabinets 11. The agitators 16 are driven to rotate by a driving motor 12 at the bottom of the flocculation cabinet 11. The flocculation cabinet 11 is provided with an upper drainage plate 13 and a lower drainage plate 14 in the vertical direction on the wall surface close to the inner wall of the rotary disk. The upper drainage plate 13 and the lower drainage plate 14 are provided with drainage holes. The liquid delivery pipe 3 is fixedly arranged on the upper side of the treatment cylinder 1 and is used to discharge the waste liquid into the flocculation tank 11; The flocculation tube 4 is fixedly arranged on the upper side of the treatment cylinder 1 and is arranged close to the liquid delivery tube 3, and is used to discharge the flocculation liquid into the flocculation tank 11 to mix with the waste liquid; The sewage pipe 2 is fixedly installed at the notch on one side of the treatment tube 1. A partition is horizontally installed in the sewage pipe 2. The partition is used to separate the sewage pipe 2 into an upper sewage pipe 201 and a lower sewage pipe 202. The upper sewage pipe 201 and the lower sewage pipe 202 are connected to the upper drainage plate 13 and the lower drainage plate 14 respectively. When the flocculation tank 11 is connected to the sewage pipe 2 by the rotation of the rotary disk, the upper sewage pipe 201 is first connected to the upper drainage plate 13 for drainage, and then the lower sewage pipe 202 is connected to the lower drainage plate 14 for drainage; Specifically, when the present invention is in use, the rotary assembly drives the rotary disk to rotate, and drives multiple groups of flocculation cabinets 11 to rotate synchronously. When the flocculation cabinet 11 rotates to below the infusion tube 3 and the flocculation tube 4, the infusion tube 3 and the flocculation tube 4 inject the waste liquid and the flocculation liquid into the flocculation cabinet 11, and at the same time, the drive motor 12 at the bottom of the flocculation cabinet 11 is started to drive the agitator 16 to rotate. After the waste liquid and the flocculation liquid are fully mixed and flocculated, the drive motor 12 is stopped, and the mixed liquid is flocculated and precipitated. The flocculants fall to the bottom of the flocculation cabinet 11 under the influence of gravity. When the flocculation cabinet 11 is driven by the rotation of the rotary disk to connect with the sewage pipe 2, the upper sewage pipe 201 is first connected with the upper drainage plate 13 for drainage, and the upper drainage plate 13 discharges the supernatant on the upper side of the mixed liquid, and then the lower sewage pipe 202 is connected with the lower drainage plate 14 for drainage, and the lower drainage plate 14 discharges the turbid liquid on the lower side of the mixed liquid.

[0017] like Figure 1 As shown, in the embodiment of the present invention, the rotary assembly includes a rotary column 7, a stepper motor 10, a transmission gear ring 8 and a power gear, wherein the rotary column 7 is coaxially fixedly installed at the bottom of the rotary disk, a group of transmission gear rings 8 are coaxially fixedly installed on the outer side of the rotary column 7, the stepper motor 10 is fixedly installed on a reinforcing bracket 102 between multiple groups of support legs 101, and the power gear is coaxially fixedly installed on the output shaft of the stepper motor 10 and meshes with the transmission gear ring 8 for transmission. The present invention starts the stepper motor 10 to drive the driving gear 9 to rotate, and drives the rotary column 7 and the rotary disk to rotate through the transmission of the transmission gear ring 8; Of course, the transmission ring gear 8 and the power gear in the actual rotating assembly can also be replaced by other components with transmission capabilities, such as a transmission belt, etc.

[0018] like Figure 3 As shown, in an embodiment of the present invention, a group of sealing rings 15 are correspondingly provided at the outer circles of the upper drainage plate 13 and the lower drainage plate 14, and the sealing rings 15 are used to seal the gap between the flocculation tank 11 and the treatment tube 1 to prevent leakage from occurring in the gap between the flocculation tank 11 and the treatment tube 1 when the flocculation tank 11 rotates.

[0019] like Figure 3 As shown, in an embodiment of the present invention, the upper drainage plate 13 and the lower drainage plate 14 are detachably installed on the corresponding flocculation cabinet 11, and the specifications of the upper drainage plate 13 and the lower drainage plate 14 can be selected according to the thickness of the flocculation sedimentation to improve the separation quality of the clear liquid and the turbid liquid in the flocculation mixed liquid.

[0020] like Figure 1As shown, in the embodiment of the present invention, an extrusion switch 6 is fixed on the upper end surface of the flocculation tank 11, and an arc-shaped baffle 5 is provided on the top of the treatment cylinder 1. When the extrusion switch 6 is in extrusion contact with the arc-shaped baffle 5, the extrusion switch 6 controls the drive motor 12 at the bottom of the corresponding flocculation tank 11 to rotate, thereby leaving time for mixing and sedimentation.

[0021] In summary, the present invention designs a treatment cylinder 1, a rotating disk, a flocculation cabinet 11, an infusion tube 3, a flocculation tube 4 and a sewage pipe 2. The rotating disk is rotatably installed at the bottom of the treatment cylinder 1, and multiple groups of flocculation cabinets 11 are evenly arranged along the circumference of the rotating disk. The outer wall surface of the flocculation cabinet 11 is sealed and abutted against the rotating disk. The flocculation cabinet 11 is close to the inner wall of the rotating disk and is respectively provided with an upper drainage plate 13 and a lower drainage plate 14 in the vertical direction. The upper drainage plate 13 and the lower drainage plate 14 are both provided with drainage holes. The present invention separates the flocculated waste liquid by driving the flocculation cabinet 11 to rotate alternately and connect with the sewage pipe 2, thereby improving the efficiency of flocculation and sedimentation separation of waste liquid and wastewater.

[0022] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A paper product processing waste liquid treatment equipment, characterized in that: include: A treatment cylinder fixedly mounted on a support surface by means of multiple sets of support legs; The rotary disc is rotatably mounted at the bottom opening of the treatment cylinder and driven to rotate intermittently by a rotary assembly mounted between multiple sets of supporting legs; A flocculation cabinet is fan-shaped, and multiple groups of the flocculation cabinets are evenly arranged along the circumference of the rotary disk. The outer wall of the flocculation cabinet is sealed against the rotary disk. A group of agitators are rotatably installed in each group of the flocculation cabinets. The agitators are driven to rotate by a driving motor at the bottom of the flocculation cabinet. The wall of the flocculation cabinet close to the inner wall of the rotary disk is respectively provided with an upper drainage plate and a lower drainage plate in the vertical direction, and drainage holes are provided on the upper drainage plate and the lower drainage plate; A liquid delivery pipe, fixedly arranged on the upper side of the treatment cylinder, is used to discharge the waste liquid into the flocculation cabinet; The flocculation tube is fixedly arranged on the upper side of the treatment cylinder and is arranged close to the liquid delivery tube, and is used to discharge the flocculation liquid into the flocculation cabinet to mix with the waste liquid; A sewage pipe is fixedly installed at the notch on one side of the treatment cylinder, wherein a partition is horizontally installed in the sewage pipe, and the partition is used to separate the sewage pipe into an upper sewage pipe and a lower sewage pipe, and the upper sewage pipe and the lower sewage pipe are connected to the upper drainage plate and the lower drainage plate respectively; When the flocculation tank is connected to the sewage pipe by the rotation of the rotary disk, the upper sewage pipe is first connected to the upper drainage plate for drainage, and then the lower sewage pipe is connected to the lower drainage plate for drainage.

2. A paper product processing waste liquid treatment equipment according to claim 1 of the flocculation cabinet, characterized in that: The rotary assembly includes a rotary column, a stepping motor, a transmission gear ring and a power gear; Wherein, the rotating column is coaxially fixedly installed on the bottom of the rotating disk, and a set of transmission gear rings are coaxially fixedly installed on the outer side of the rotating column; The stepper motor is fixedly mounted on a reinforcing bracket between a plurality of groups of supporting legs, and the power gear is coaxially fixedly mounted on an output shaft of the stepper motor and meshes with a transmission gear ring for transmission.

3. The paper product processing waste liquid treatment equipment according to claim 1, characterized in that: A group of sealing rings are correspondingly arranged at the outer circles of the upper liquid drainage plate and the lower liquid drainage plate, and the sealing rings are used to seal the gap between the flocculation tank and the treatment cylinder.

4. The paper product processing waste liquid treatment equipment according to claim 1, characterized in that: The upper liquid drainage plate and the lower liquid drainage plate are detachable and installed on the corresponding flocculation cabinet.

5. The paper product processing waste liquid treatment equipment according to claim 1, characterized in that: The upper end surface of the flocculation cabinet is fixed with an extrusion switch, and the top of the treatment cylinder is provided with an arc-shaped baffle; When the squeeze switch is in squeeze contact with the arc-shaped baffle, the squeeze switch controls the driving motor at the bottom of the corresponding flocculation tank to rotate.

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