Mixed paper production wastewater discharge device

Abstract

The utility model relates to the field of wastewater discharge, in particular to a mixed paper production wastewater discharge device. In the prior art, the mixing and reaction time of fiber suspended solids (impurities) in papermaking wastewater and a flocculant is too short, and the impurities in the wastewater are not fully mixed and reacted with the flocculant. The utility model provides a mixed paper production wastewater discharge device which comprises a bracket and a shell, the bracket is fixedly connected with a shell; the device further comprises a rotating rod, blades and the like. The shell is rotationally connected with a rotating rod; the rotating rod is fixedly connected with blades. According to the utility model, the distance between wastewater and a flocculating agent from the upper opening of the cylinder to the inner bottom of the cylinder is prolonged through the blades, so that the mixing and reaction time of the wastewater and the flocculating agent is prolonged, and the wastewater and the flocculating agent are fully mixed and reacted.

Description

Technical Field

[0001] The utility model relates to the field of wastewater discharge, in particular to a mixed paper production wastewater discharge device. Background Art

[0002] Papermaking refers to the process of making paper pulp into paper products. Pulping is the process of using waste paper as raw material to separate the fibers to obtain pulp. The characteristics of papermaking wastewater are large wastewater discharge and a large amount of fiber suspended matter in the wastewater. In order to remove the fiber suspended matter (impurities) in the wastewater, flocculants are generally added to the wastewater to make the fiber suspended matter mix and react with the flocculant to produce sediment, so as to separate the fiber suspended matter from the wastewater to meet the wastewater discharge standards.

[0003] For example, Chinese patent CN209554997U adds a stirring device to the flocculation treatment to ensure the treatment efficiency and treatment effect and improve the utilization rate of the reagent. However, the mixing and reaction time of the fiber suspension (impurities) in the papermaking wastewater and the flocculant is too short. The impurities in the wastewater are not fully mixed and reacted with the flocculant and are discharged along with the wastewater. A large amount of fiber suspension (impurities) still exists in the wastewater, which is far from meeting the wastewater discharge standard and needs to be improved. Utility Model Content

[0004] In order to overcome the shortcomings of the problems mentioned in the background, the utility model provides a mixed paper production wastewater discharge device.

[0005] The technical scheme of the utility model is: a mixed paper production wastewater discharge device, comprising a bracket and a shell; the bracket is fixedly connected to the shell; it also comprises a rotating rod, blades, a cylinder, a spiral screen plate, a driving motor and a power motor; the shell is rotatably connected to the rotating rod; the rotating rod is fixedly connected to the blades; the shell is fixedly connected to the power motor; the shell is rotatably connected to the cylinder, and the blades are in contact with the inner wall of the cylinder, and the output shaft of the power motor is fixedly connected to the cylinder; the cylinder is provided with a plurality of through grooves; the inner side surface of the shell and the outer side surface of the cylinder jointly form a cavity, and the interior of the cylinder and the cavity are connected through the through grooves; the outer side surface of the cylinder is provided with a spiral screen plate, and the spiral screen plate is located in the cavity; the shell is installed with a driving motor, and the output shaft of the driving motor is fixedly connected to the rotating rod; the shell is provided with a drain outlet and a sewage outlet; the drain outlet is provided with a filter screen.

[0006] Preferably, a stirring rod is also included; the rotating rod is provided with a plurality of stirring rods distributed in a vertical array.

[0007] Preferably, it also includes connecting rods, inner rods and scraping rods; each stirring rod is provided with a connecting rod; each connecting rod is provided with an inner rod; all inner rods are fixedly connected to a plurality of scraping rods, and every two scraping rods are separated by inner rods.

[0008] Preferably, it also includes bevel gear 1 and bevel gear 2; the rotating rod and the stirring rod are arranged to be rotationally connected; the stirring rod and the connecting rod are arranged to be rotationally connected; the connecting rod and the inner rod are rotationally connected; each stirring rod is fixedly connected to a bevel gear 1; each inner rod is fixedly connected to a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1 on the corresponding side; each stirring rod is provided with a plurality of hard stirring bars.

[0009] Preferably, a V-shaped scraper strip is further included; each connecting rod is provided with a V-shaped scraper strip, and both ends of the V-shaped scraper strip are respectively connected to the scraper rod on the corresponding side.

[0010] Preferably, the scraper rod is made of rubber material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model prolongs the distance between the wastewater and the flocculant from the upper opening of the cylinder to the bottom of the cylinder through the blades, thereby prolonging the mixing and reaction time of the wastewater and the flocculant, so that the wastewater and the flocculant are fully mixed and reacted.

[0013] 2. In the utility model, the wastewater flowing out of the through groove will impact the flocculent sediment on the spiral mesh plate from bottom to top, disperse the flocculent sediment on the spiral mesh plate, and impact the mesh holes on the spiral mesh plate, dredge the mesh holes on the spiral mesh plate from bottom to top, and the wastewater scooped up by the spiral mesh plate will drip downward through the mesh holes on the spiral mesh plate, dredge the mesh holes on the spiral mesh plate from top to bottom, and avoid the mesh holes of the spiral mesh plate being blocked, which causes the wastewater to be transported upward together with the flocculent sediment.

[0014] 3. The utility model stirs the wastewater and flocculant between the blades in the horizontal direction through the stirring rod, so that the wastewater and flocculant are mixed and reacted more fully, and further stirs the wastewater and flocculant between the blades in the vertical direction through the stirring bar, so that the wastewater and flocculant are mixed and reacted more fully, thereby improving the mixing and reaction rate between the wastewater and the flocculant, and improving the effect and efficiency of wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure disclosed by the utility model;

[0016] Figure 2 It is a structural cross-sectional view of the housing disclosed in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the cylinder disclosed in the utility model;

[0018] Figure 4 It is a structural cross-sectional view of the cylinder disclosed in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the stirring rod disclosed in the utility model;

[0020] Figure 6 The utility model discloses a schematic diagram of the combined structure of the connecting rod, the inner rod and the scraping rod.

[0021] In the figure: 1, bracket; 2, shell; 3, rotating rod; 4, blade; 5, cylinder; 6, spiral screen; 7, driving motor; 8, power motor; 101, stirring rod; 102, connecting rod; 103, inner rod; 104, scraper rod; 105, bevel gear 1; 106, bevel gear 2; 201, V-shaped scraper strip; 2a, drain outlet; 2b, sewage outlet; 5a, through groove. DETAILED DESCRIPTION

[0022] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0023] like Figure 1-Figure 6 As shown, the mixed paper production wastewater discharge device includes a bracket 1 and a shell 2; the bracket 1 is bolted to the shell 2; it also includes a rotating rod 3, blades 4, a cylinder 5, a spiral screen plate 6, a driving motor 7 and a power motor 8; the shell 2 is rotatably connected to the rotating rod 3; the rotating rod 3 is fixedly connected to the blade 4; the shell 2 is bolted to the power motor 8; the shell 2 is rotatably connected to the cylinder 5, and the blade 4 is in contact with the inner wall of the cylinder 5, and the output shaft of the power motor 8 is fixedly connected to the cylinder 5; the cylinder 5 is provided with a plurality of through grooves 5a; the inner side surface of the shell 2 and the outer side surface of the cylinder 5 form a cavity together, and the interior of the cylinder 5 is connected to the cavity through the through grooves 5a; the outer side surface of the cylinder 5 is provided with a spiral screen plate 6, and the spiral screen plate 6 is located in the cavity; the shell 2 is installed with a driving motor 7, and the output shaft of the driving motor 7 is fixedly connected to the rotating rod 3; the shell 2 is provided with a drain outlet 2a and a sewage outlet 2b; the drain outlet 2a is provided with a filter.

[0024] It also includes a stirring rod 101; the rotating rod 3 is provided with six stirring rods 101 distributed in a vertical array.

[0025] It also includes a connecting rod 102, an inner rod 103 and a scraping rod 104; each stirring rod 101 is provided with a connecting rod 102; each connecting rod 102 is provided with an inner rod 103; all the inner rods 103 are fixedly connected to a plurality of scraping rods 104, and every two scraping rods 104 are separated by an inner rod 103.

[0026] It also includes a bevel gear 105 and a bevel gear 2 106; the rotating rod 3 and the stirring rod 101 are arranged to be rotationally connected; the stirring rod 101 and the connecting rod 102 are arranged to be rotationally connected; the connecting rod 102 and the inner rod 103 are rotationally connected; each stirring rod 101 is fixedly connected to a bevel gear 1 105; each inner rod 103 is fixedly connected to a bevel gear 2 106, and the bevel gear 2 106 is meshed with the bevel gear 1 105 on the corresponding side; each stirring rod 101 is provided with a plurality of hard stirring bars.

[0027] It also includes a V-shaped scraper 201; each connecting rod 102 is provided with a V-shaped scraper 201, and both ends of the V-shaped scraper 201 are respectively connected to the scraper rod 104 on the corresponding side.

[0028] The scraper rod 104 is made of rubber material to increase the friction between the scraper rod 104 and the inner side of the cylinder 5, thereby ensuring that the scraper rod 104 can rotate.

[0029] The utility model works specifically as follows:

[0030] First, the drive motor 7 is connected to an external power supply and a controller so that the drive motor 7 can operate normally, and the sewage outlet 2b is connected to an external suction device; then, wastewater is input into the cylinder 5 from the upper opening of the cylinder 5, and at the same time, the output shaft of the drive motor 7 is controlled to drive the rotating rod 3 and the blades 4 to rotate clockwise from a top-down perspective, and the output shaft of the power motor 8 is controlled to drive the cylinder 5 and the spiral mesh plate 6 to rotate clockwise from a top-down perspective, and the speed of the power motor 8 is controlled to be lower than the speed of the drive motor 7, and the wastewater in the cylinder 5 is transported from top to bottom by the rotating blades 4. At the same time, a flocculant is added into the cylinder 5 from the upper opening of the cylinder 5, so that the wastewater and the flocculant are mixed and reacted in the process of being transported from top to bottom by the blades 4, and the wastewater is discharged from the cylinder 5 through the through groove 5a. The wastewater flows from the inner bottom to the cavity between the shell 2 and the cylinder 5, and flocculent sediment is obtained in the lower part of the cavity. The wastewater inside the cylinder 5 is discharged through the drain port 2a, and the flocculent sediment in the wastewater is intercepted by the filter screen on the drain port 2a. In this process, the blades 4 will greatly extend the distance between the wastewater and the flocculant from the upper opening of the cylinder 5 to the inner bottom of the cylinder 5, thereby extending the mixing and reaction time of the wastewater and the flocculant, so that the wastewater and the flocculant are fully mixed and reacted. At the same time, the flocculent sediment at the inner bottom of the cylinder 5 is scooped up by the lower part of the rotating spiral mesh plate 6 and transported upward. After passing through the cavity between the shell 2 and the cylinder 5, it gradually approaches the sewage outlet 2b. At this time, the external suction equipment is controlled to extract the flocculent sediment close to the sewage outlet 2b through the sewage outlet 2b to carry out wastewater treatment.

[0031] In the above process, a large amount of flocculent sediment will accumulate at the lower part of the spiral mesh plate 6 and is difficult to disperse, and the wastewater flowing out from the through groove 5a will impact the flocculent sediment on the spiral mesh plate 6 from bottom to top, so that the flocculent sediment on the spiral mesh plate 6 is dispersed, and impact the mesh holes on the spiral mesh plate 6, and dredge the mesh holes on the spiral mesh plate 6 from bottom to top, and the wastewater scooped up by the spiral mesh plate 6 will drip downward through the mesh holes on the spiral mesh plate 6, and dredge the mesh holes on the spiral mesh plate 6 from top to bottom, so as to avoid the mesh holes of the spiral mesh plate 6 being blocked, causing the wastewater to be transported upward together with the flocculent sediment.

[0032] When the rotating rod 3 rotates, the stirring rod 101 rotates synchronously with the rotating rod 3, and the wastewater and flocculant between the blades 4 are stirred horizontally by the stirring rod 101, so that the wastewater and the flocculant are mixed and reacted more fully. At the same time, the stirring rod 101 will drive the connecting rod 102, the inner rod 103 and the scraping rod 104 to rotate synchronously. The scraping rod 104 contacts and rubs with the inner wall of the cylinder 5 to scrape the flocculent sediment attached to the inner wall of the cylinder 5 to prevent the flocculent sediment from remaining inside the cylinder 5. At the same time, the scraping rod 10 When the scraper rod 104 contacts and rubs against the inner wall of the cylinder 5, the scraper rod 104 will rotate, thereby driving the inner rod 103 and the second bevel gear 106 to rotate, so that the second bevel gear 106 drives the first bevel gear 105, the stirring rod 101 and the stirring bar on the stirring rod 101 to rotate, and the wastewater and flocculant between the blades 4 are further stirred in the vertical direction by the stirring bar, so that the wastewater and the flocculant are mixed and reacted more fully, the mixing and reaction rate between the wastewater and the flocculant is increased, and the effect and efficiency of the wastewater treatment are improved.

[0033] At the same time, when the rotating rod 3 rotates, it will drive the stirring rod 101, the connecting rod 102 and the V-shaped scraper 201 to rotate synchronously. The V-shaped scraper 201 scrapes the flocculent sediment attached to the inner wall of the cylinder 5 and in the area of ​​the connecting rod 102, ensuring that each area on the inner wall of the cylinder 5 can be fully scraped, avoiding the residue of flocculent sediment inside the cylinder 5.

[0034] The utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for general technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A mixed paper production wastewater discharge device, comprising a bracket and a shell; the bracket is fixedly connected to the shell; and the characteristics are: It also includes a rotating rod, blades, a cylinder, a spiral screen, a driving motor and a power motor; the shell is rotatably connected to the rotating rod; the rotating rod is fixedly connected to the blades; the shell is fixedly connected to the power motor; the shell is rotatably connected to the cylinder, and the blades are in contact with the inner wall of the cylinder, and the output shaft of the power motor is fixedly connected to the cylinder; the cylinder is provided with a plurality of through grooves; the inner side surface of the shell and the outer side surface of the cylinder together form a cavity, and the interior of the cylinder is connected to the cavity through the through grooves; the outer side surface of the cylinder is provided with a spiral screen, and the spiral screen is located in the cavity; the shell is installed with a driving motor, and the output shaft of the driving motor is fixedly connected to the rotating rod; the shell is provided with a drain outlet and a sewage outlet; the drain outlet is provided with a filter.

2. The mixed paper production wastewater discharge device according to claim 1, characterized in that: It also includes a stirring rod; the rotating rod is provided with a plurality of stirring rods distributed in a vertical array.

3. The mixed paper production wastewater discharge device according to claim 2, characterized in that: It also includes connecting rods, inner rods and scraping rods; each stirring rod is provided with a connecting rod; each connecting rod is provided with an inner rod; all inner rods are fixedly connected with a plurality of scraping rods, and every two scraping rods are separated by the inner rods.

4. The mixed paper production wastewater discharge device according to claim 3, characterized in that: It also includes a bevel gear 1, a rotating rod and a stirring rod are arranged to be rotatably connected; a stirring rod and a connecting rod are arranged to be rotatably connected; a connecting rod and an inner rod are rotatably connected; each stirring rod is fixedly connected to a bevel gear 1.

5. The mixed paper production wastewater discharge device according to claim 4, characterized in that: It also includes a bevel gear 2. Each inner rod is fixedly connected with a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1 on the corresponding side; each stirring rod is provided with a plurality of hard stirring bars.

6. The mixed paper production wastewater discharge device according to claim 4, characterized in that: It also includes a V-shaped scraper strip; each connecting rod is provided with a V-shaped scraper strip, and the two ends of the V-shaped scraper strip are respectively connected to the scraper rod on the corresponding side.

7. The mixed paper production wastewater discharge device according to any one of claims 4 to 6, characterized in that: The scraper rod is set to rubber material.

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