Paper pulp molding wastewater treatment device

Abstract

The utility model discloses a paper pulp molding wastewater treatment device, which relates to the technical field of wastewater treatment, and comprises a box body, a cavity is arranged in the box body, a discharge pipe is fixedly arranged on the side surface of the box body, the discharge pipe is communicated with the cavity, one end of the discharge pipe far away from the box body is fixedly provided with a filter pressing device, and the filter pressing device is communicated with the cavity. The filter pressing device comprises a sleeve, a rotating shaft is rotatably mounted on the inner wall of the sleeve, variable-pitch spiral blades are fixedly mounted on the outer surface of the rotating shaft, a plurality of filter holes are formed in the sleeve corresponding to the variable-pitch spiral blades in a penetrating manner, and the filter holes are circumferentially distributed around the center line of the sleeve; a discharging groove is formed in the outer surface, corresponding to the filtering holes, of the sleeve in a penetrating mode, a discharging device is rotationally installed on the inner wall of the discharging groove, solid matter in waste water of the filter pressing device is pushed to the discharging groove, meanwhile, floccules in the waste water are extruded, sludge is prevented from occurring, and then secondary pollution is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a pulp molding wastewater treatment device. Background Art

[0002] Pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material and shapes paper products of a certain shape on a molding machine with a special mold. The raw materials of this technology come from a wide range of sources, including board paper, waste carton paper, waste white-edge paper, etc. Its production process mainly includes pulping, adsorption molding, drying and shaping, etc. It is harmless to the environment, and the products can be recycled and reused. The volume of pulp molded products is smaller than that of foamed plastics, can be overlapped, and is convenient for transportation. The product features of pulp molded products include egg boxes, egg trays, fruit trays, flower pots, disposable medical bedpans, etc., which are mainly used for packaging cushions for eggs, fruits, precision devices, fragile glass, ceramic products, handicrafts, etc., and have good cushioning and protection properties. Pulp molded products are not only suitable for catering, food, electronics, electrical appliances and other industries, but also widely used in handicrafts, glass, ceramics, toys, medicine, decoration and other industries, and have broad application prospects. In addition, the biggest highlight of pulp molded products is their environmental protection. Its raw materials come from waste paper, and the entire production process is basically pollution-free, which is fully in line with the concept of environmental protection. Pulp molded products will not pollute the environment during their life cycle and are truly derived from nature and return to nature.

[0003] The existing technology has the following problems: some wastewater treatment devices use biodegradation to treat impurities in wastewater. During the biological treatment process, a large amount of biological sludge may be generated, which requires additional treatment or disposal. Improper disposal of the sludge may lead to secondary pollution. Utility Model Content

[0004] In order to solve the above technical problems, a pulp molding wastewater treatment device is provided to solve the above-mentioned current secondary pollution problem.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A pulp molding wastewater treatment device comprises a box body, a chamber is formed inside the box body, a discharge pipe is fixedly installed on the side of the box body, the discharge pipe is connected to the chamber, a filter press device is fixedly installed on the end of the discharge pipe away from the box body, the filter press device comprises a sleeve, a rotating shaft is rotatably mounted on the inner wall of the sleeve, a variable pitch spiral blade is fixedly mounted on the outer surface of the rotating shaft, a plurality of filter holes are penetrated through the sleeve corresponding to the variable pitch spiral blade, the plurality of filter holes are distributed circumferentially around the center line of the sleeve, a discharge trough is penetrated through the outer surface of the sleeve corresponding to the filter holes, and a discharge device is rotatably mounted on the inner wall of the discharge trough.

[0007] Preferably, a feed pipe is fixedly installed on the upper surface of the box body, and the feed pipe is connected to the chamber. A plurality of conveying pipes are fixedly installed on the side of the box body away from the feed pipe. The plurality of conveying pipes are horizontally distributed along the side of the box body, and the conveying pipe is connected to the chamber. A rotating rod is rotatably installed on the inner wall of the chamber corresponding to the feed pipe, and a fan-shaped blade is fixedly installed on the other end of the rotating rod.

[0008] Preferably, the discharging device comprises a transmission shaft, the outer surface of the transmission shaft is sleeved with a conveyor belt, a plurality of protrusions are fixedly mounted on the surface of the conveyor belt, and the plurality of protrusions are horizontally distributed along the surface of the conveyor belt.

[0009] Preferably, a plurality of baffle plates are fixedly installed on the inner wall of the discharge pipe, and the plurality of baffle plates are horizontally distributed along the axial direction of the discharge pipe. A plurality of material passing grooves are opened through the surface of the baffle plate, and the plurality of material passing grooves are distributed circumferentially around the center line of the baffle plate, and the material passing grooves on the surface of the plurality of baffle plates decrease successively.

[0010] Preferably, an arc-shaped baffle plate is fixedly mounted on the inner wall of the sleeve corresponding to the discharging device.

[0011] Preferably, a high-speed motor is disposed on the upper side of the box body, and the rotating rod passes through the box body and is fixedly connected to the output end of the high-speed motor.

[0012] Preferably, a low-speed motor is provided on the side of the sleeve away from the discharge pipe, and the rotating shaft passes through the sleeve and is fixedly connected to the output end of the low-speed motor.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model is provided with a filter press device, which is mainly composed of a sleeve, a rotating shaft, a variable pitch spiral blade, a filter hole, a discharge trough and a discharge device. A rotating shaft is installed in the sleeve, and a variable pitch spiral blade is fixed on the shaft. When the rotating shaft rotates, the spiral blade pushes the solids in the wastewater to the discharge trough and squeezes the floccules in the wastewater. A plurality of filter holes are provided on the sleeve, and these holes only allow wastewater to pass through, while the solids are retained. A discharge trough is provided on the outer surface of the sleeve corresponding to the filter hole, and a discharge device is installed in the trough to remove the retained solids, prevent the appearance of sludge, and thus prevent secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the box in the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the medium pressure filter device of the utility model;

[0017] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0018] Figure 5 This is the internal structure diagram of the discharge pipe in the utility model.

[0019] The numbers in the figure are: 1. box body; 2. chamber; 3. discharge pipe; 4. filter press device; 5. feed pipe; 6. conveying pipe; 7. rotating rod; 8. fan-shaped blades; 9. sleeve; 10. rotating shaft; 11. variable pitch spiral blades; 12. filter holes; 13. discharge trough; 14. discharge device; 15. transmission shaft; 16. conveyor belt; 17. protrusion; 18. barrier plate; 19. feed trough; 20. arc-shaped baffle plate; 21. high-speed motor; 22. low-speed motor. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] Reference Figure 1-5 As shown, a pulp molding wastewater treatment device comprises a box body 1, a chamber 2 is provided inside the box body 1, a discharge pipe 3 is fixedly installed on the side of the box body 1, the discharge pipe 3 is communicated with the chamber 2, a filter press device 4 is fixedly installed on the end of the discharge pipe 3 away from the box body 1, a feed pipe 5 is fixedly installed on the upper surface of the box body 1, the feed pipe 5 is communicated with the chamber 2, wastewater enters the chamber 2 through the feed pipe 5, a plurality of conveying pipes 6 are fixedly installed on the side of the box body 1 away from the feed pipe 5, the plurality of conveying pipes 6 are horizontally distributed along the side of the box body 1, and the plurality of conveying pipes 6 convey flake caustic soda, polyaluminum chloride and polyacrylamide to the chamber 2 respectively, the flake caustic soda is mainly used to eliminate hardness, adjust pH value and precipitate heavy metal ions; polyaluminum chloride is a commonly used inorganic salt coagulant, which can be oxygenated in wastewater treatment. The particulate matter formed by the oxidation of the oxidizing agent to form COD is precipitated and filtered out, thereby reducing COD. In the treatment of industrial wastewater, it is usually used as a coagulant, has a high-efficiency adsorption capacity, and can quickly and effectively form dense and large alum flowers; polyacrylamide is often used as a flocculant and precipitant in wastewater treatment. It can condense suspended matter and colloidal particles, so that they can quickly aggregate into larger precipitates, which is convenient for subsequent precipitation and separation; after the wastewater is combined with caustic soda flakes, polyaluminium chloride and polyacrylamide, the conveying pipe 6 is connected to the chamber 2, and the inner wall of the chamber 2 corresponding to the feed pipe 5 is rotatably installed with a rotating rod 7, and the other end of the rotating rod 7 is fixedly installed with a fan-shaped blade 8, and the rotating rod 7 drives the fan-shaped blade 8 to stir the wastewater, so that the caustic soda flakes, polyaluminium chloride and polyacrylamide are fully in contact with the wastewater.

[0022] like Figure 3As shown, the filter press device 4 includes a sleeve 9, a rotating shaft 10 is rotatably installed on the inner wall of the sleeve 9, and a variable pitch spiral blade 11 is fixedly installed on the outer surface of the rotating shaft 10. A plurality of filter holes 12 are penetrated through the sleeve 9 corresponding to the variable pitch spiral blade 11, and the plurality of filter holes 12 are distributed circumferentially around the center line of the sleeve 9. A discharge trough 13 is penetrated through the outer surface of the sleeve 9 corresponding to the filter holes 12, and a discharge device 14 is rotatably installed on the inner wall of the discharge trough 13. The rotating shaft 10 drives the variable pitch spiral blade 11 to rotate at a low speed, so that the flocs entering the sleeve 9 move and are squeezed along the variable pitch spiral blade 11, and the squeezed water and the water in the mixture leave the sleeve 9 through the filter holes 12, and the completely filtered material leaves the sleeve 9 through the discharge device 14.

[0023] like Figure 4 As shown, the discharging device 14 includes a transmission shaft 15, the transmission shaft is connected to an external power source, the outer surface of the transmission shaft 15 is sleeved with a conveyor belt 16, and the surface of the conveyor belt 16 is fixedly installed with multiple protrusions 17, and the multiple protrusions 17 are horizontally distributed along the surface of the conveyor belt 16. The transmission shaft 15 drives the protrusions 17 on the conveyor belt 16 to allow the material to leave the sleeve 9 through the discharge trough 13.

[0024] like Figure 5 As shown, a plurality of baffle plates 18 are fixedly installed on the inner wall of the discharge pipe 3, and the plurality of baffle plates 18 are horizontally distributed along the axial direction of the discharge pipe 3. A plurality of feed troughs 19 are opened on the surface of the baffle plates 18, and the plurality of feed troughs 19 are distributed in a circle around the center line of the baffle plates 18. The feed troughs 19 on the surfaces of the plurality of baffle plates 18 are successively reduced, and the baffle plates 18 and the feed troughs 19 cooperate with each other to reduce the flow rate of the wastewater containing flocs.

[0025] like Figure 4 As shown, an arc-shaped material baffle plate 20 is fixedly installed on the inner wall of the sleeve 9 corresponding to the discharge device 14 , and the arc-shaped material baffle plate 20 cuts the material after being completely filtered to prevent the material from clogging the discharge trough 13 .

[0026] like Figure 1 As shown, a high-speed motor 21 is provided on the upper side of the box body 1 , and the rotating rod 7 penetrates the box body 1 and is fixedly connected to the output end of the high-speed motor 21 . The high-speed motor 21 serves as a power source for the rotating rod 7 .

[0027] like Figure 1 As shown, a low-speed motor 22 is provided on the side of the sleeve 9 away from the discharge pipe 3 , the rotating shaft 10 passes through the sleeve 9 and is fixedly connected to the output end of the low-speed motor 22 , and the low-speed motor 22 serves as a power source for the rotating shaft 10 .

[0028] Working principle: wastewater enters the chamber 2 through the feed pipe 5, and at the same time, caustic soda flakes, polyaluminium chloride and polyacrylamide enter the chamber 2 through the conveying pipe 6. The high-speed motor 21 drives the fan-shaped blades 8 on the rotating rod 7 to rotate at a high speed, so that the caustic soda flakes, polyaluminium chloride and polyacrylamide are fully combined with the wastewater. The fully combined mixture enters the sleeve 9 through the baffle plate 18 and the feed chute 19 in the discharge pipe 3. The low-speed motor 22 drives the variable pitch spiral blades 11 on the rotating shaft 10 to rotate. While the mixture moves in the variable pitch spiral blades 11, the variable pitch spiral blades 11 squeeze the flocs in the mixture. The squeezed water and the water in the mixture leave the sleeve 9 through the filter hole 12, and the filtered clean material is separated by the arc-shaped baffle plate 20. At the same time, the transmission shaft 15 drives the protrusion 17 on the conveyor belt 16 to allow the material to leave the sleeve 9 through the discharge chute 13.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pulp molding wastewater treatment device, comprising a casing (1), wherein a chamber (2) is provided inside the casing (1), a discharge pipe (3) is fixedly installed on the side of the casing (1), the discharge pipe (3) is communicated with the chamber (2), a filter press device (4) is fixedly installed on one end of the discharge pipe (3) away from the casing (1), the filter press device (4) comprises a sleeve (9), a rotating shaft (10) is rotatably installed on the inner wall of the sleeve (9), a variable pitch spiral blade (11) is fixedly installed on the outer surface of the rotating shaft (10), a plurality of filter holes (12) are penetrated and provided in the sleeve (9) corresponding to the variable pitch spiral blade (11), the plurality of filter holes (12) are circumferentially distributed around the center line of the sleeve (9), a discharge trough (13) is penetrated and provided on the outer surface of the sleeve (9) corresponding to the filter holes (12), and a discharge device (14) is rotatably installed on the inner wall of the discharge trough (13).

2. A pulp molding wastewater treatment device according to claim 1, characterized in that: A feed pipe (5) is fixedly mounted on the upper surface of the box body (1), and the feed pipe (5) is connected to the chamber (2). A plurality of conveying pipes (6) are fixedly mounted on a side of the box body (1) away from the feed pipe (5), and the plurality of conveying pipes (6) are horizontally distributed along the side of the box body (1), and the conveying pipes (6) are connected to the chamber (2). A rotating rod (7) is rotatably mounted on the inner wall of the chamber (2) corresponding to the feed pipe (5), and a fan-shaped blade (8) is fixedly mounted on the other end of the rotating rod (7).

3. A pulp molding wastewater treatment device according to claim 1, characterized in that: The discharging device (14) comprises a transmission shaft (15), the outer surface of which is sleeved with a conveyor belt (16), a plurality of protrusions (17) being fixedly mounted on the surface of the conveyor belt (16), and the plurality of protrusions (17) being horizontally distributed along the surface of the conveyor belt (16).

4. A pulp molding wastewater treatment device according to claim 1, characterized in that: A plurality of baffle plates (18) are fixedly mounted on the inner wall of the discharge pipe (3), the plurality of baffle plates (18) are horizontally distributed along the axial direction of the discharge pipe (3), a plurality of material passing grooves (19) are penetrated through the surface of the baffle plate (18), the plurality of material passing grooves (19) are circumferentially distributed around the center line of the baffle plate (18), and the material passing grooves (19) on the surface of the plurality of baffle plates (18) are successively reduced.

5. A pulp molding wastewater treatment device according to claim 1, characterized in that: An arc-shaped material blocking plate (20) is fixedly mounted on the inner wall of the sleeve (9) corresponding to the discharging device (14).

6. A pulp molding wastewater treatment device according to claim 2, characterized in that: A high-speed motor (21) is provided on the upper side of the box body (1), and the rotating rod (7) passes through the box body (1) and is fixedly connected to the output end of the high-speed motor (21).

7. A pulp molding wastewater treatment device according to claim 1, characterized in that: A low-speed motor (22) is provided on the side of the sleeve (9) away from the discharge pipe (3), and the rotating shaft (10) passes through the sleeve (9) and is fixedly connected to the output end of the low-speed motor (22).

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