Device for treating papermaking fiber wastewater

Abstract

The utility model discloses a device for treating papermaking fiber wastewater, which is applied to the field of papermaking wastewater treatment and comprises a biochemical reaction shell, a biological treatment mechanism is arranged in the biochemical reaction shell, and a pretreatment mechanism is arranged on one side of the biochemical reaction shell. When the papermaking wastewater is treated in the biological treatment mechanism, solid wastes such as particulate matters, precipitates and suspended solids in the papermaking wastewater can be treated in advance through the pretreatment mechanism, so that the load of subsequent biochemical treatment is reduced, the treatment effect is improved, and the solid wastes can be recycled before the papermaking wastewater is subjected to biological treatment. Solid wastes such as particulate matters, sediments and suspended matters in the papermaking process can be removed, the load of a subsequent biochemical treatment device is favorably reduced, and the stability and the treatment effect of the whole system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking wastewater treatment, in particular to a device for treating papermaking fiber wastewater. Background Art

[0002] Papermaking wastewater refers to wastewater generated during the pulping and papermaking process, including pulping and cooking waste liquid, washing wastewater, bleaching wastewater and paper machine white water. Papermaking wastewater has complex composition and poor biodegradability. It is a difficult-to-treat industrial wastewater and is one of the main sources of industrial pollution in my country.

[0003] The Chinese utility model patent currently announced as: CN205556417U discloses a biochemical treatment device for papermaking wastewater, which includes a plasma generator, a decomposition tank and a biochemical reactor. The plasma generator is connected to the coil in the decomposition tank through a first pipeline. A number of small holes are distributed on the coil. Oxygen-containing free radicals, nitrogen-containing free radicals, etc. passing through the plasma generator are fully in contact with the papermaking wastewater under the action of the small holes in the coil. The pigments in the papermaking wastewater are oxidized into easily absorbable nitrides and sulfides. The treated liquid enters the biochemical reactor through a second pipeline. The organic matter therein is treated by a biochemical reaction of the bacteria in the biochemical reactor to complete the deep treatment of the wastewater. The utility model improves the treatment efficiency of papermaking wastewater through secondary treatment.

[0004] This patent does not pre-treat the papermaking wastewater before biological treatment. Solid wastes such as particulate matter, sediment and suspended matter will exist in the papermaking process, which will easily increase the load of subsequent biochemical treatment and reduce the treatment effect. Utility Model Content

[0005] The utility model aims to provide a device for treating papermaking fiber wastewater, which solves the problem that the existing device for treating papermaking fiber wastewater does not pretreat the papermaking wastewater before biological treatment of the papermaking wastewater, and solid wastes such as particulate matter, sediment and suspended matter will exist in the papermaking process, which easily increases the load of subsequent biochemical treatment and reduces the treatment effect.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a device for treating papermaking fiber wastewater comprises a biochemical reaction shell, a biological treatment mechanism is arranged inside the biochemical reaction shell, and a pretreatment mechanism is arranged on one side of the biochemical reaction shell;

[0007] The pretreatment mechanism includes a fixed trough body, an extrusion barrel, a filter hole, a mounting frame, a transverse plate, a threaded rod and an extrusion plate. The fixed trough body is arranged on one side of the biochemical reaction shell, the extrusion barrel is arranged inside the fixed trough body, the filter hole is arranged on the extrusion barrel, the number of the filter holes is several and they are arranged circumferentially, the mounting frame is arranged on both sides of the fixed trough body, the number of the mounting frames is two and they are arranged symmetrically, the transverse plate is arranged between the two mounting frames, the threaded rod penetrates the transverse plate and is threadedly rotatably connected to the transverse plate, and the extrusion plate is arranged at the lower end of the threaded rod and is located inside the extrusion barrel.

[0008] By adopting the above technical scheme, by setting a biochemical reaction shell, a biological treatment mechanism and a pretreatment mechanism, when the papermaking wastewater is treated in the biological treatment mechanism, the solid wastes such as particulate matter, sediment and suspended matter in the papermaking wastewater can be treated in advance through the pretreatment mechanism, thereby reducing the load of subsequent biochemical treatment and improving the treatment effect. The pretreatment mechanism includes a fixed tank body, an extrusion barrel, a filter hole, a mounting frame, a cross plate, a threaded rod and an extrusion plate. When in use, the papermaking wastewater is first added to the extrusion barrel, and then the threaded rod is rotated. Since the threaded rod is rotatably connected to the cross plate thread, when the threaded rod rotates, it can drive the extrusion plate to move downward, squeeze the papermaking wastewater, and discharge the wastewater from the extrusion barrel through the filter hole into the fixed tank body, leaving the solid wastes such as particulate matter, sediment and suspended matter in the papermaking wastewater in the extrusion barrel.

[0009] The utility model is further configured as follows: the biological treatment mechanism includes a bacteria inlet, a nutrient inlet, a motor, a rotating rod and a stirring plate, the bacteria inlet and the nutrient inlet are both arranged on the biochemical reaction shell, the bacteria inlet and the nutrient inlet are symmetrically arranged, the motor is arranged on the biochemical reaction shell, the rotating rod is arranged on the output shaft of the motor, the rotating rod extends to the interior of the biochemical reaction shell, the stirring plate is arranged on the rotating rod, and the number of the stirring plates is several and evenly arranged.

[0010] By adopting the above technical scheme, by setting a bacteria inlet, a nutrient inlet, a motor, a rotating rod and a stirring plate, when in use, the bacterial community is first added to the inside of the biochemical reaction shell through the bacteria inlet, so that the papermaking wastewater inside the biochemical reaction shell can be biologically treated, and then the nutrients required by the bacterial community can be added to the inside of the biochemical reaction shell through the nutrient inlet to maintain the growth and metabolic activity of the bacterial community, and then the rotating rod and the stirring plate are driven by the motor to rotate, so that the nutrients begin to mix in the papermaking wastewater, thereby accelerating the absorption rate of the bacterial community.

[0011] The utility model is further configured as follows: a connecting pipe is arranged between the biochemical reaction shell and the fixed tank body, one end of the connecting pipe penetrates into the interior of the biochemical reaction shell, and the other end of the connecting pipe penetrates into the interior of the fixed tank body, and a water pump is arranged on the connecting pipe.

[0012] By adopting the above technical solution, a connecting pipe and a water pump are set up, and the biochemical reaction shell and the fixed tank body are connected through the connecting pipe. After the papermaking wastewater enters the fixed tank body after filtration, the water pump is turned on to allow the wastewater to enter the biochemical reaction shell through the connecting pipe for biological treatment.

[0013] The utility model is further configured as follows: a connecting rod is arranged at the lower ends of the two mounting frames, the connecting rod is two in number and passes through the mounting frames, and the connecting rod contacts the lower surface of the fixed groove body.

[0014] By adopting the above technical solution, by setting a connecting rod, when in use, the mounting frame is fixed to the two side walls of the fixed trough body, and then the connecting rod can improve the stability of the mounting frame, and the connecting rod contacts the lower surface of the fixed trough body, which can provide support for the fixed trough body.

[0015] The utility model is further configured as follows: a fixing sleeve is arranged at the upper end of the threaded rod, and a rotating handle is arranged inside the fixing sleeve.

[0016] By adopting the above technical solution, by providing a fixing sleeve and a rotating handle, when in use, the fixing sleeve can install the rotating handle, and then the rotating handle can provide a fulcrum for the staff, so that the rotating handle drives the threaded rod to rotate.

[0017] The utility model is further configured as follows: the stirring plate is provided with through holes, and the number of the through holes is several and evenly arranged.

[0018] By adopting the above technical solution, through holes are set. When in use, the through holes are evenly arranged on the stirring plate. When the stirring plate rotates, the resistance of the wastewater to the stirring plate can be reduced.

[0019] The utility model is further configured as follows: the lower surface of the water pump is arranged on a fixing block for fixing the water pump.

[0020] By adopting the above technical solution and providing a fixing block, the fixing block can provide support for the water pump during use, thereby improving the stability of the water pump.

[0021] In summary, the utility model has the following beneficial effects:

[0022] By setting a fixed trough body, an extrusion barrel, a filter hole, a mounting frame, a transverse plate, a threaded rod and an extrusion plate, when in use, papermaking wastewater is first added into the extrusion barrel, and then the threaded rod is rotated. Since the threaded rod is rotatably connected with the transverse plate thread, when the threaded rod rotates, it can drive the extrusion plate to move downward, and the papermaking wastewater is squeezed, so that the wastewater is discharged from the extrusion barrel through the filter hole and enters the fixed trough body, and solid wastes such as particulate matter, sediment and suspended matter in the papermaking wastewater are retained in the extrusion barrel.

[0023] By arranging a bacteria inlet, a nutrient inlet, a motor, a rotating rod and a stirring plate, when in use, the bacteria are first added into the interior of the biochemical reaction shell through the bacteria inlet, so that the papermaking wastewater inside the biochemical reaction shell can be biologically treated, and then the nutrients required by the bacteria can be added into the interior of the biochemical reaction shell through the nutrient inlet to maintain the growth and metabolic activity of the bacteria, and then the rotating rod and the stirring plate are driven by the motor to rotate, so that the nutrients begin to mix in the papermaking wastewater, thereby accelerating the absorption rate of the bacteria.

[0024] Based on the above-mentioned improvements, the overall technical effect achieved by this device is that it can remove solid waste such as particulate matter, sediment and suspended matter in the papermaking process before biologically treating papermaking wastewater, which is beneficial to reduce the load of subsequent biochemical treatment equipment and improve the stability and treatment effect of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a left view of the utility model;

[0027] Figure 3 The utility model Figure 2 Stereoscopic cross-section at AA in the middle;

[0028] Figure 4 It is a structural schematic diagram of the mounting frame, the horizontal plate and the connecting rod of the utility model.

[0029] In the figure, 1, biochemical reaction shell; 2, biological treatment mechanism; 3, pretreatment mechanism; 4, connecting pipe; 5, water pump; 6, connecting rod; 7, fixing sleeve; 8, rotating handle; 9, through hole; 10, fixing block; 201, bacteria inlet; 202, nutrient inlet; 203, motor; 204, rotating rod; 205, stirring plate; 301, fixed tank; 302, extrusion barrel; 303, filtering hole; 304, mounting frame; 305, horizontal plate; 306, threaded rod; 307, extrusion plate. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0031] Example:

[0032] See also Figure 1-Figure 4 , the utility model provides a technical solution: a device for treating papermaking fiber wastewater, comprising a biochemical reaction shell 1, a biological treatment mechanism 2 is arranged inside the biochemical reaction shell 1, and a pretreatment mechanism 3 is arranged on one side of the biochemical reaction shell 1;

[0033] The pretreatment mechanism 3 includes a fixed tank body 301, an extrusion barrel 302, a filter hole 303, a mounting frame 304, a cross plate 305, a threaded rod 306 and an extrusion plate 307. The fixed tank body 301 is arranged on one side of the biochemical reaction shell 1, the extrusion barrel 302 is arranged inside the fixed tank body 301, the filter hole 303 is arranged on the extrusion barrel 302, the number of the filter holes 303 is several and they are arranged circumferentially, the mounting frame 304 is arranged on both sides of the fixed tank body 301, the number of the mounting frames 304 is two and they are arranged symmetrically, the cross plate 305 is arranged between the two mounting frames 304, the threaded rod 306 penetrates the cross plate 305 and is threadedly connected to the cross plate 305, and the extrusion plate 307 is arranged at the lower end of the threaded rod 306 and is located inside the extrusion barrel 302.

[0034] By setting the biochemical reaction shell 1, the biological treatment mechanism 2 and the pretreatment mechanism 3, when the papermaking wastewater is treated in the biological treatment mechanism 2, the solid wastes such as particulate matter, sediment and suspended matter in the papermaking wastewater can be treated in advance through the pretreatment mechanism 3, thereby reducing the load of subsequent biochemical treatment and improving the treatment effect. The pretreatment mechanism 3 includes a fixed tank body 301, an extrusion barrel 302, a filter hole 303, a mounting frame 304, a cross plate 305, a threaded rod 306 and an extrusion plate 307. When in use, the papermaking wastewater is first added to the extrusion barrel 302, and then the threaded rod 306 is rotated. Since the threaded rod 306 is threadedly connected to the cross plate 305, when the threaded rod 306 rotates, it can drive the extrusion plate 307 to move downward to squeeze the papermaking wastewater, so that the wastewater is discharged from the extrusion barrel 302 through the filter hole 303 and enters the fixed tank body 301, and the solid wastes such as particulate matter, sediment and suspended matter in the papermaking wastewater are left in the extrusion barrel 302.

[0035] refer to Figure 3The bioprocessing mechanism 2 includes a bacteria inlet 201, a nutrient inlet 202, a motor 203, a rotating rod 204 and a stirring plate 205. The bacteria inlet 201 and the nutrient inlet 202 are both arranged on the biochemical reaction shell 1. The bacteria inlet 201 and the nutrient inlet 202 are symmetrically arranged. The motor 203 is arranged on the biochemical reaction shell 1. The rotating rod 204 is arranged on the output shaft of the motor 203. The rotating rod 204 extends to the interior of the biochemical reaction shell 1. The stirring plate 205 is arranged on the rotating rod 204. The number of the stirring plates 205 is several and evenly arranged. By setting the bacteria inlet Inlet 201, nutrient inlet 202, motor 203, rotating rod 204 and stirring plate 205. When in use, the bacterial flora is first added into the interior of the biochemical reaction shell 1 through the bacterial inlet 201, so that the papermaking wastewater in the biochemical reaction shell 1 can be biologically treated, and then the nutrients required by the bacterial flora can be added into the interior of the biochemical reaction shell 1 through the nutrient inlet 202 to maintain the growth and metabolic activity of the bacterial flora, and then the rotating rod 204 and the stirring plate 205 are driven by the motor 203 to rotate, so that the nutrients begin to mix in the papermaking wastewater, thereby accelerating the absorption rate of the bacterial flora.

[0036] refer to Figure 1 A connecting pipe 4 is provided between the biochemical reaction shell 1 and the fixed tank body 301, one end of the connecting pipe 4 penetrates into the interior of the biochemical reaction shell 1, and the other end of the connecting pipe 4 penetrates into the interior of the fixed tank body 301. A water pump 5 is provided on the connecting pipe 4. By providing the connecting pipe 4 and the water pump 5, the biochemical reaction shell 1 and the fixed tank body 301 are connected through the connecting pipe 4. After the papermaking wastewater is filtered and enters the fixed tank body 301, the water pump 5 is turned on to allow the wastewater to enter the biochemical reaction shell 1 through the connecting pipe 4 for biological treatment.

[0037] refer to Figure 4 A connecting rod 6 is provided at the lower end of the two mounting frames 304. There are two connecting rods 6 and they penetrate the mounting frames 304. The connecting rods 6 are in contact with the lower surface of the fixed groove body 301. By providing the connecting rods 6, when in use, the mounting frames 304 are fixed to the two side walls of the fixed groove body 301, and then the connecting rods 6 can improve the stability of the mounting frames 304, and the connecting rods 6 are in contact with the lower surface of the fixed groove body 301, which can provide support for the fixed groove body 301.

[0038] refer to Figure 1 A fixing sleeve 7 is provided at the upper end of the threaded rod 306, and a rotating handle 8 is provided inside the fixing sleeve 7. By providing the fixing sleeve 7 and the rotating handle 8, when in use, the fixing sleeve 7 can install the rotating handle 8, and then the rotating handle 8 can provide a fulcrum for the staff, so that the rotating handle 8 drives the threaded rod 306 to rotate.

[0039] refer to Figure 3The stirring plate 205 is provided with through holes 9, and the number of the through holes 9 is several and evenly arranged. By setting the through holes 9, when in use, the through holes 9 are evenly arranged on the stirring plate 205. When the stirring plate 205 rotates, the resistance of the wastewater to the stirring plate 205 can be reduced.

[0040] refer to Figure 1 The lower surface of the water pump 5 is arranged on a fixing block 10 for fixing the water pump 5 . By setting the fixing block 10 , when in use, the fixing block 10 can provide support for the water pump 5 and improve the stability of the water pump 5 .

[0041] Brief description of the usage process: When using;

[0042] First, add papermaking wastewater into the squeezing barrel 302, and then rotate the threaded rod 306. Since the threaded rod 306 is threadedly rotatably connected with the horizontal plate 305, when the threaded rod 306 rotates, it can drive the squeezing plate 307 to move downward, squeeze the papermaking wastewater, and make the wastewater pass through the filter hole 303 and discharge from the squeezing barrel 302 into the fixed tank body 301, and solid wastes such as particles, sediments and suspended matter in the papermaking wastewater are left in the squeezing barrel 302;

[0043] Then, the biochemical reaction shell 1 and the fixed tank body 301 are connected through the connecting pipe 4. After the papermaking wastewater is filtered and enters the fixed tank body 301, the water pump 5 is turned on to allow the wastewater to enter the biochemical reaction shell 1 through the connecting pipe 4 for biological treatment.

[0044] Then, the bacterial flora is added into the interior of the biochemical reaction shell 1 through the bacterial inlet 201, so that the papermaking wastewater in the biochemical reaction shell 1 can be biologically treated. Then, the nutrients required by the bacterial flora can be added into the interior of the biochemical reaction shell 1 through the nutrient inlet 202 to maintain the growth and metabolic activity of the bacterial flora. Then, the motor 203 drives the rotating rod 204 and the stirring plate 205 to rotate, so that the nutrients begin to mix in the papermaking wastewater, thereby accelerating the absorption rate of the bacterial flora.

[0045] Finally, the fixing sleeve 7 can be installed on the rotating handle 8, and then the rotating handle 8 can provide a fulcrum for the staff, so that the rotating handle 8 drives the threaded rod 306 to rotate.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A device for treating papermaking fiber wastewater, comprising a biochemical reaction shell (1), characterized in that: A biological treatment mechanism (2) is arranged inside the biochemical reaction shell (1), and a pretreatment mechanism (3) is arranged on one side of the biochemical reaction shell (1); The pretreatment mechanism (3) comprises a fixed tank body (301), an extrusion barrel (302), a filtering hole (303), a mounting frame (304), a transverse plate (305), a threaded rod (306) and an extrusion plate (307), wherein the fixed tank body (301) is arranged on one side of the biochemical reaction shell (1), the extrusion barrel (302) is arranged inside the fixed tank body (301), the filtering hole (303) is arranged on the extrusion barrel (302), and the filtering hole (303) is arranged on the extrusion barrel (302). 3) There are several mounting frames (304) arranged in a circle, the mounting frames (304) are arranged on both sides of the fixed trough (301), there are two mounting frames (304) and they are arranged symmetrically, the transverse plate (305) is arranged between the two mounting frames (304), the threaded rod (306) passes through the transverse plate (305) and is threadedly connected to the transverse plate (305), and the extrusion plate (307) is arranged at the lower end of the threaded rod (306) and is located inside the extrusion barrel (302).

2. The device for treating papermaking fiber wastewater according to claim 1, characterized in that: The biological treatment mechanism (2) comprises a bacteria inlet (201), a nutrient inlet (202), a motor (203), a rotating rod (204) and a stirring plate (205); the bacteria inlet (201) and the nutrient inlet (202) are both arranged on the biochemical reaction shell (1); the bacteria inlet (201) and the nutrient inlet (202) are symmetrically arranged; the motor (203) is arranged on the biochemical reaction shell (1); the rotating rod (204) is arranged on the output shaft of the motor (203); the rotating rod (204) extends to the interior of the biochemical reaction shell (1); the stirring plate (205) is arranged on the rotating rod (204); and the number of the stirring plates (205) is plural and evenly arranged.

3. The device for treating papermaking fiber wastewater according to claim 1, characterized in that: A connecting pipe (4) is provided between the biochemical reaction shell (1) and the fixed tank body (301); one end of the connecting pipe (4) penetrates into the interior of the biochemical reaction shell (1), and the other end of the connecting pipe (4) penetrates into the interior of the fixed tank body (301); and a water pump (5) is provided on the connecting pipe (4).

4. The device for treating papermaking fiber wastewater according to claim 1, characterized in that: The lower ends of the two mounting frames (304) are provided with connecting rods (6), the connecting rods (6) are two in number and penetrate the mounting frames (304), and the connecting rods (6) are in contact with the lower surface of the fixed slot body (301).

5. The device for treating papermaking fiber wastewater according to claim 1, characterized in that: A fixing sleeve (7) is provided at the upper end of the threaded rod (306), and a rotating handle (8) is provided inside the fixing sleeve (7).

6. The device for treating papermaking fiber wastewater according to claim 2, characterized in that: The stirring plate (205) is provided with through holes (9), and the through holes (9) are multiple and evenly arranged.

7. The device for treating papermaking fiber wastewater according to claim 3, characterized in that: The lower surface of the water pump (5) is arranged on a fixing block (10) for fixing the water pump (5).

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