Paper mill wastewater treatment device

Abstract

Relates to the field of paper-making industry, and discloses a paper mill wastewater treatment device which comprises a treatment box, a top plate fixed at the upper end of the treatment box and a mixing unit arranged on the top plate and used for mixing wastewater and chemicals, and further comprises a treatment unit arranged in the treatment box and connected with the mixing unit, meanwhile, residual paper wadding in the wastewater is collected; the treatment unit comprises filter frames which are arranged in the treatment box at equal angles; the connecting frame is arranged on the side, close to the mixing unit, of the filtering frame and connected with the mixing unit. Paper wadding and residues in wastewater can be effectively collected, the paper wadding can be conveniently collected, the utilization rate of resources is increased, it is guaranteed that treated water is clean, the paper wadding is prevented from blocking filtering equipment, and the filtering efficiency is improved. The influence of wastewater on the environment is reduced, the reusability of water resources is improved, and the current requirements on environmental protection and sustainable development are met.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking industry, in particular to a wastewater treatment device for a paper mill. Background Art

[0002] Wastewater treatment is a crucial step in the papermaking process. With increasingly stringent environmental regulations and growing public concern about environmental protection, effective wastewater treatment has become crucial for the sustainable development of the papermaking industry.

[0003] The existing equipment has the following shortcomings: However, after the purification scum treatment tank is completed, a large amount of white waste paper residue is often observed during the sludge discharge process at the bottom. The waste paper residue cannot be fully recycled, which not only causes a waste of resources, but also the paper residue is easy to block the filtering equipment during discharge, affecting the subsequent treatment efficiency.

[0004] Therefore, the present application proposes a paper mill wastewater treatment device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a paper mill wastewater treatment device to solve the problem that the above-mentioned waste paper residues cannot be fully recycled, which not only causes a waste of resources, but also the paper residues are easy to block the filtering equipment when discharged, affecting the subsequent treatment efficiency.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a paper mill wastewater treatment device, comprising a treatment box, a top plate fixed to the upper end of the treatment box, and a mixing unit provided on the top plate for mixing wastewater with a reagent, further comprising:

[0007] A processing unit is provided inside the processing box and is connected to the mixing unit, and is used to collect the residual paper in the wastewater;

[0008] The processing unit includes:

[0009] The filter frame is set at an equal angle inside the processing box to collect paper residue;

[0010] The connecting frame is arranged on a side of the filtering frame close to the mixing unit and is connected to the mixing unit.

[0011] The mixing unit includes a motor fixed on the top plate, a rotating shaft fixed to the power output end of the motor, a rotating frame arranged on the rotating shaft and a mixing blade fixed to the lower end of the rotating shaft, and the filter frame is connected to the connecting frame.

[0012] Wherein, a positioning block is provided at the connection between the rotating frame and the connecting frame, and a mounting groove for the positioning block to move is provided at the lower end of the connecting frame.

[0013] A limiting block is provided on one side where the filter frame is connected to the processing box, a limiting groove for the limiting block to move is provided on the processing box, and a moving groove for the limiting block to move is provided at the lower end of the limiting groove.

[0014] Wherein, a collection frame is provided at the lower end of the filtering frame;

[0015] A handle is provided on the upper end of the filter frame.

[0016] Among them, the processing box is provided with a filter screen at a position below the mixing blade, the processing box is provided with a debris removal port at a position above the filter screen, the upper end of the processing box is provided with a feed port, the lower end of the processing box is provided with a discharge port, and the upper end of the processing box is symmetrically provided with lifting ears.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model adds the wastewater generated in the papermaking process into the interior of the treatment box, then adds the treatment agent into the interior of the treatment box, and then starts the mixing unit to mix the wastewater and the agent, thereby accelerating the reaction efficiency of the wastewater and the agent and improving the purification treatment efficiency of the wastewater. The mixing unit is connected to the filter frame through the connecting frame, so the filter frame is driven to rotate during the rotation of the mixing unit, and the filter frame can collect paper residues suspended in the wastewater. Through the efficient stirring of the mixing unit, the wastewater and the agent can be fully mixed, thereby improving the efficiency of the chemical reaction. At the same time, the filter frame design of the treatment unit can effectively collect paper flocs and residues in the wastewater, facilitates the collection of paper flocs, improves the utilization rate of resources, and ensures the cleanliness of the treated water, prevents paper flocs from clogging the filter equipment, reduces the impact of wastewater on the environment, improves the reusability of water resources, and meets the current needs for environmental protection and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention from a top view;

[0021] Figure 3 This is a schematic cross-sectional view of an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure inside the processing box in one embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a processing unit in one embodiment of the present utility model;

[0024] Figure 6 This is a structural diagram of the connection between the processing unit and the processing box in one embodiment of the present invention;

[0025] Figure 7 This is a structural diagram of the connection between the positioning block and the filter frame in one embodiment of the present utility model.

[0026] In the figure: 1. Processing box; 101. Limiting groove; 102. Moving groove; 11. Feed port; 12. Discharge port; 13. De-impurity port; 14. Lifting ear; 15. Top plate; 2. Mixing unit; 21. Motor; 22. Rotating shaft; 23. Rotating frame; 231. Positioning block; 24. Mixing blade; 3. Processing unit; 31. Filter frame; 32. Collecting frame; 33. Limiting block; 34. Connecting frame; 341. Mounting groove; 35. Handle; 4. Filter screen. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-7 The utility model provides a technical solution: a paper mill wastewater treatment device, comprising a treatment box 1, a top plate 15 fixed to the upper end of the treatment box 1, and a mixing unit 2 disposed on the top plate 15 for mixing wastewater with a reagent, and further comprising:

[0029] The processing unit 3 is arranged inside the processing box 1 and is connected to the mixing unit 2, and is used to collect the residual paper in the wastewater;

[0030] Processing unit 3 includes:

[0031] The filter frame 31 is arranged at an equal angle inside the processing box 1 to collect paper residue;

[0032] The connecting frame 34 is disposed on a side of the filter frame 31 close to the mixing unit 2 and is connected to the mixing unit 2 .

[0033] It should be noted that, during operation, the wastewater generated in the papermaking process is added to the interior of the treatment box 1, and then the treatment agent is added to the interior of the treatment box 1, and then the mixing unit 2 is started to mix the wastewater and the agent, thereby accelerating the reaction efficiency of the wastewater and the agent and improving the purification efficiency of the wastewater. The mixing unit 2 is connected to the filter frame 31 through the connecting frame 34, so the filter frame 31 is driven to rotate during the rotation of the mixing unit 2. The filter frame 31 can collect paper residue suspended in the wastewater. Through the efficient stirring of the mixing unit 2, the wastewater and the agent can be fully mixed, thereby improving the efficiency of the chemical reaction. At the same time, the filter frame 31 of the treatment unit 3 is designed to effectively collect paper flocs and residues in the wastewater, facilitate the collection of paper flocs, improve resource utilization, and ensure the cleanliness of the treated water, prevent paper flocs from clogging the filter equipment, reduce the impact of wastewater on the environment, and improve the reusability of water resources, which meets the current needs for environmental protection and sustainable development.

[0034] In one embodiment, the mixing unit 2 includes a motor 21 fixed on the top plate 15, a rotating shaft 22 fixed to the power output end of the motor 21, a rotating frame 23 arranged on the rotating shaft 22 and a mixing blade 24 fixed to the lower end of the rotating shaft 22, and the filter frame 31 is connected to the connecting frame 34.

[0035] This design, see Figure 3-7 The motor 21 drives the rotating shaft 22 to rotate at high speed, thereby driving the mixing blades 24 to vigorously stir the wastewater and the reagent. This design ensures that the wastewater and the reagent can be fully mixed in a short time, improves the rate and effect of the chemical reaction, and thus accelerates the wastewater treatment process. The connection design of the filter frame 31 and the connecting frame 34 allows the paper fibers and residues stirred during the mixing process to be easily collected through the filter frame 31, simplifying the residue treatment process and improving the continuity and efficiency of wastewater treatment.

[0036] In one embodiment, a positioning block 231 is provided at the connection between the rotating frame 23 and the connecting frame 34 , and a mounting slot 341 for the positioning block 231 to move is defined at the lower end of the connecting frame 34 .

[0037] This design, see Figure 5 ,as well as Figure 7 When installing the filter frame 31, align the installation groove 341 on the connecting frame 34 with the positioning block 231, and then insert the installation groove 341 into the positioning block 231, which can ensure the precise docking between the rotating frame 23 and the connecting frame 34. Then, when the rotating frame 23 rotates under the drive of the rotating shaft 22, the positioning block 231 can drive the connecting frame 34 to rotate, and then drive the filter frame 31 to rotate, ensuring a stable connection between the rotating frame 23 and the filter frame 31, and effectively preventing offset or dislocation during the rotation process, thereby improving the operating stability and reliability of the entire wastewater treatment device.

[0038] In one embodiment, a limit block 33 is provided on one side where the filter frame 31 is connected to the processing box 1 , a limit slot 101 is provided on the processing box 1 for the limit block 33 to move, and a moving slot 102 is provided at the lower end of the limit slot 101 for the limit block 33 to move.

[0039] This design, see Figure 5 The cooperation between the limit block 33 and the limit groove 101 ensures the stable position of the filter frame 31 in the treatment box 1, preventing it from being offset or misplaced during use. The movable groove 102 allows the treatment box 1 to limit the limit block 33, so that when the rotating frame 23 drives the filter frame 31 to rotate, the limit block 33 rotates inside the movable groove 102, so that the filter frame 31 can be accurately installed in the predetermined position, thereby improving the stability and reliability of the entire wastewater treatment system.

[0040] In one embodiment, a collection frame 32 is provided at the lower end of the filter frame 31;

[0041] A handle 35 is provided at the upper end of the filter frame 31 .

[0042] This design, see Figure 5-7 The collection frame 32 can increase the collection space of the filter frame 31, reducing the difficulty and time-consuming process of cleaning. The handle 35 design makes it more convenient and labor-saving for the operator to install, disassemble or move the filter frame 31. When the wastewater treatment is completed, the rotating shaft 22 drives the limit block 33 to align with the limit groove 101, and then pull up the handle 35 to take the filter frame 31 out of the inside of the processing box 1 to collect the paper residue in the filter frame 31.

[0043] In one embodiment, the processing box 1 is provided with a filter screen 4 at a position below the mixing blade 24, the processing box 1 is provided with a de-impurity port 13 at a position above the filter screen 4, the upper end of the processing box 1 is provided with a feed port 11, the lower end of the processing box 1 is provided with a discharge port 12, and the upper end of the processing box 1 is symmetrically provided with lifting ears 14.

[0044] This design, see Figure 1-4 By setting a filter screen 4 in the treatment box 1, impurities in the wastewater can be further filtered and separated, thereby improving the purity and quality of the treated water source. The wastewater generated in the papermaking process is added to the interior of the treatment box 1 from the feed port 11, and then after a series of treatments, the purified water source is discharged from the discharge port 12. The equipment can be lifted by the lifting lug 14 for transportation and assembly. The setting of the impurity removal port 13 makes it easy to remove impurities accumulated on the filter screen 4, maintain the permeability of the filter screen 4, thereby ensuring the filtering effect, and also simplifying the maintenance work of the equipment.

Claims

1. A paper mill wastewater treatment device, comprising a treatment box (1), a top plate (15) fixed to the upper end of the treatment box (1), and a mixing unit (2) arranged on the top plate (15) for mixing wastewater with a reagent, characterized in that: Also includes: A processing unit (3) is arranged inside the processing box (1) and is connected to the mixing unit (2) to collect the residual paper in the wastewater; The processing unit (3) comprises: A filter frame (31) is arranged at an equal angle inside the processing box (1) and is used to collect paper residue; A connecting frame (34) is arranged on a side of the filter frame (31) close to the mixing unit (2) and is connected to the mixing unit (2).

2. The paper mill wastewater treatment device according to claim 1, characterized in that: The mixing unit (2) comprises a motor (21) fixed on the top plate (15), a rotating shaft (22) fixed to the power output end of the motor (21), a rotating frame (23) arranged on the rotating shaft (22), and a mixing blade (24) fixed to the lower end of the rotating shaft (22); the filter frame (31) is connected to the connecting frame (34).

3. The paper mill wastewater treatment device according to claim 2, characterized in that: A positioning block (231) is provided at the connection between the rotating frame (23) and the connecting frame (34), and a mounting groove (341) for the positioning block (231) to move is provided at the lower end of the connecting frame (34).

4. The paper mill wastewater treatment device according to claim 2, characterized in that: A limiting block (33) is provided on one side of the filter frame (31) connected to the processing box (1); a limiting groove (101) for the limiting block (33) to move is provided on the processing box (1); and a moving groove (102) for the limiting block (33) to move is provided at the lower end of the limiting groove (101).

5. The paper mill wastewater treatment device according to claim 1, characterized in that: A collecting frame (32) is provided at the lower end of the filtering frame (31); A handle (35) is provided at the upper end of the filter frame (31).

6. The paper mill wastewater treatment device according to claim 2, characterized in that: The processing box (1) is provided with a filter screen (4) at a position below the mixing blade (24), and the processing box (1) is provided with a de-impurity port (13) at a position above the filter screen (4). The upper end of the processing box (1) is provided with a feed port (11), the lower end of the processing box (1) is provided with a discharge port (12), and the upper end of the processing box (1) is symmetrically provided with lifting ears (14).

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