Wastewater treatment device for wood production

Abstract

The present invention relates to the technical field of wood production wastewater treatment, and discloses a wood production wastewater treatment apparatus, which comprises a separation cylinder, and further comprises: a cleaning unit arranged in the separation cylinder and used for cleaning suspended solids in the separation cylinder; the primary filtering mechanism is arranged on one side of the separation cylinder and is used for primarily separating impurities in wastewater during wood production; the aeration mechanism is arranged at the bottom of the separation barrel and is used for aerating the primarily filtered wastewater. Through the synergistic effect of the primary filtering mechanism, the aeration mechanism and the gas dissolving mechanism, multi-stage treatment of wastewater is achieved, the primary filtering mechanism can preliminarily separate large-particle impurities in the wastewater, the aeration mechanism fills gas into the wastewater through the gas pump, mixing of the wastewater and the gas is promoted, grease and suspended particles in the wastewater are further removed, and the wastewater treatment effect is improved. And the gas dissolving mechanism further improves the content of gas in water by utilizing the Venturi effect, so that impurities in the wastewater are fully removed, and the treatment efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wood production wastewater treatment, in particular to a wood production wastewater treatment device. Background Art

[0002] In the wood processing industry, the wastewater generated during the production process usually contains a large amount of impurities such as organic matter, suspended particles and grease. If these wastewaters are discharged directly without effective treatment, they will cause serious pollution to the environment, affecting the ecological balance and the sustainable use of water resources.

[0003] For example, application No. 202311568724.1 discloses a wastewater treatment device and method for wood production, in which large pieces of wood in the wastewater are intercepted by an interception frame, and an electric slide rail drives the slider and bucket to move upward, and the bucket drives the large pieces of wood intercepted on the interception frame upward, and then drives the bucket to rotate through the flip assembly to pour the large pieces of wood into the collection box, thereby achieving non-stop cleaning.

[0004] However, wood production wastewater often contains a large amount of grease and suspended matter, and traditional methods are difficult to effectively remove these grease and suspended matter. Therefore, a wood production wastewater treatment device is proposed to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a wastewater treatment device for wood production in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a wood production wastewater treatment device, including a separation cylinder, and further comprising:

[0007] A cleaning unit is provided in the separation cylinder and is used to clean the suspended matter in the separation cylinder;

[0008] A primary filtration mechanism is provided on one side of the separation cylinder and is used for preliminarily separating impurities in wastewater during wood production;

[0009] an aeration mechanism, disposed at the bottom of the separation cylinder, for aerating the wastewater after primary filtration;

[0010] The air dissolving mechanism is provided at the bottom of the separation cylinder and located on one side of the aeration mechanism, and is used to continue the air dissolving treatment in the aerated wastewater;

[0011] Wherein, the cleaning unit includes:

[0012] The suspended matter cleaning mechanism is arranged above the separation cylinder and is used to rotate in a circle on the top of the separation cylinder to clean the suspended matter suspended on the surface of the water body;

[0013] A scraping mechanism is provided on the suspended matter cleaning mechanism and scrapes impurities on the inner wall of the separation cylinder while rotating along with the suspended matter cleaning mechanism;

[0014] The suspended matter discharge mechanism is arranged in the middle of the separation cylinder and is used to collect the suspended matter cleaned by the suspended matter cleaning mechanism and discharge it outward;

[0015] Wherein, the suspended matter discharging mechanism comprises:

[0016] Isolation ring 1 and isolation ring 2 are connected at the axis of the separation cylinder, and isolation ring 1 is located outside isolation ring 2;

[0017] The bottom of the separation cylinder is connected to the impurity discharge cylinder, and the interior of the isolation ring 2 is movably connected to the lower hopper, and the bottom outer wall of the lower hopper is movably connected to the inner wall of the impurity discharge cylinder for outwardly conducting suspended impurities;

[0018] A water outlet cylinder is provided below the separation cylinder and is communicated between the first isolation ring and the second isolation ring;

[0019] A plurality of overflow pipes are connected to the inner wall of the isolation ring 1 and are used to introduce water between the isolation ring 1 and the isolation ring 2;

[0020] The outer wall of the lower hopper is provided with a spring for pushing the lower hopper upward.

[0021] Preferably, the suspended matter cleaning mechanism includes:

[0022] A rotating rod is provided at the top of the separation cylinder, and a roller is fixedly sleeved on one side of the outer wall of the rotating rod and rolls on the top of the separation cylinder;

[0023] A screen is movably sleeved on the outer wall of the rotating rod, and the screen is conical and has an opening at the top for receiving suspended matter;

[0024] Roller 2 is fixedly sleeved on one end of the screen and rolls on the top of the isolation ring 1;

[0025] The outer wall on one side of the large circumference of the screen is rotatably connected to a rotating ring through a bearing, and one side of the rotating ring is fixedly connected to a gear ring;

[0026] The inner wall of the gear ring is connected to the rotating rod through a gear set, and the gear ring is driven to rotate by the rotating rod;

[0027] The outer wall of the screen is connected to a mounting box, and the outer wall of the mounting box is connected to a motor, and the output end of the motor is connected to the rotating rod for driving the rotating rod to rotate;

[0028] a fixed ring rotatably connected to the outer wall of the screen;

[0029] The two scrapers are conical and arc-shaped, and the inner walls are connected to the outer walls of the rotating ring and the outer walls of the fixed ring through connecting rods, so as to scrape the suspended matter into the scrapers during rotation.

[0030] Preferably, the scraper is eccentrically connected to the outer wall of the rotating ring and the fixed ring through a connecting rod, so as to scrape and collect the suspended matter;

[0031] The gear set includes three spur gears, two of which are connected to the screen through a transmission rod, and one is sleeved on the outer wall of the rotating rod, and meshes with each other and the gear ring in sequence;

[0032] Two scraping rods are connected to the inner wall of the opening of the screen, and the outer wall of the scraping rod is in contact with the side of the scraper close to the screen, so as to scrape the suspended matter attached to the scraper off and into the screen.

[0033] Preferably, the scraping mechanism includes:

[0034] Multiple fixed rods, connected to the screen in groups of two;

[0035] A sliding sleeve, slidably connected to the outer wall of the fixed rod;

[0036] A sliding rod, fixedly connected to the outer wall of the sliding sleeve;

[0037] Two wave grooves are respectively formed on the inner wall of the separation cylinder and the outer wall of the isolation ring, and the sliding rod slides in the wave grooves;

[0038] The two brush plates 1 are respectively connected to the bottom of the sliding sleeves on both sides, and the bottom of the brush plate 1 is connected to the brush plate 2 for brushing away impurities on the inner wall of the separation cylinder.

[0039] Preferably, the primary filtration mechanism comprises:

[0040] A primary filter cartridge is provided on one side of the separation cartridge, and a bracket is connected to the bottom of the primary filter cartridge;

[0041] A water inlet pipe is installed on one side of the outer wall of the primary filter cartridge to introduce wastewater into the primary filter cartridge;

[0042] Two filter plates are arranged on the outer wall of the primary filter cartridge to isolate impurities in the wastewater;

[0043] A discharge inclined plate is provided at the bottom of the primary filter cartridge and is used to discharge the isolated waste materials;

[0044] A waste pipe is connected to the bottom of the primary filter cartridge and is used to discharge the isolated waste;

[0045] The water pump is arranged on the outer wall of the primary filter cartridge and draws the wastewater that has been initially filtered into the aeration cylinder through a pipeline connected to the upper part of the primary filter cartridge.

[0046] Preferably, the aeration mechanism comprises:

[0047] an aeration cylinder, which is arranged below the separation cylinder and connected to the water outlet of the water pump through a conduit;

[0048] The air pump is arranged on one side of the separation cylinder and is introduced into the interior of the aeration cylinder.

[0049] Preferably, the air dissolving mechanism comprises:

[0050] A connecting pipe is fixedly connected to the outer wall of the aeration cylinder, and a sleeve is connected to the other side of the connecting pipe;

[0051] Conical pipe 1 is connected to one side of the sleeve and is connected to the outer wall of the separation cylinder through a water guide pipe for introducing wastewater;

[0052] The second conical tube is provided on the inner wall of the sleeve and is connected to the first connecting tube;

[0053] An air inlet pipe, connected to the outer wall of the casing, for introducing gas into the casing;

[0054] Preferably, the aeration mechanism further comprises:

[0055] A connecting frame is connected to the inner wall of the connecting pipe, and a round rod is rotatably connected to the middle part of the connecting frame;

[0056] The inner wall of the connecting pipe is provided with a turbine, and the round rod is connected to the turbine;

[0057] A rotating shaft is rotatably connected to the top of the inner wall of the aeration cylinder through a bearing, and a plurality of levers are connected to the outer wall of the rotating shaft for driving the wastewater aeration;

[0058] The bevel gear set is arranged between the round rod and the rotating shaft and is used to drive the rotating shaft to rotate.

[0059] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0060] 1. The wood production wastewater treatment device realizes multi-stage treatment of wastewater through the synergistic effect of the primary filtration mechanism, the aeration mechanism and the dissolved air mechanism. The primary filtration mechanism can initially separate large particles of impurities in the wastewater. The aeration mechanism injects gas into the wastewater through an air pump to promote the mixing of wastewater and gas, and further remove grease and suspended particles in the wastewater. The dissolved air mechanism uses the Venturi effect to further increase the gas content in the water, ensuring that impurities in the wastewater are fully removed, thereby improving treatment efficiency and quality.

[0061] 2. The suspended matter cleaning mechanism and scraping mechanism in the cleaning unit of the wood production wastewater treatment device can effectively clean the suspended matter and impurities in the separation cylinder. The suspended matter cleaning mechanism can collect and separate the suspended matter through the design of the screen and scraper.

[0062] 3. The wastewater treatment device for wood production can brush away impurities on the inner wall of the separation cylinder when the brush plates are moved through the scraping mechanism and the design of brush plates 1 and 2, and can change the up and down movement of brush plates 1 and 2, thereby further improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 It is a schematic diagram of the structure of the present invention;

[0064] Figure 2 This is a schematic diagram of the cross-sectional structure of the primary filter cartridge of the present invention;

[0065] Figure 3 Schematic diagram of the cross-sectional structure of the air dissolving mechanism and the aeration mechanism of the present invention;

[0066] Figure 4 For the present invention Figure 3 A in the middle is an enlarged structural diagram;

[0067] Figure 5 This is a schematic structural diagram of the cleaning unit of the present invention;

[0068] Figure 6 Schematic diagram of the cross-sectional structure of the separation cylinder of the present invention;

[0069] Figure 7 This is a schematic diagram of the explosion structure of the cleaning unit of the present invention;

[0070] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0071] Figure 9 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0072] In the figure: 1. Separation drum; 2. Cleaning unit; 21. Suspended matter cleaning mechanism; 211. Rotating rod; 212. Roller 1; 213. Screen; 214. Mounting box; 215. Motor; 216. Gear set; 217. Gear ring; 218. Rotating ring; 219. Scraper; 2110. Bearing; 2111. Fixed ring; 2112. Roller 2; 2113 Scraper rod; 22. Scraping mechanism; 221. Fixed rod; 222. Sliding sleeve; 223. Sliding rod; 224. Brush plate 1; 225. Brush plate 2; 226. Wave trough; 23. Suspended matter discharging mechanism; 231. Isolation ring 1; 2 32. Isolation ring 2; 233. Discharge hopper; 234. Spring; 3. Primary filtration mechanism; 31. Primary filter cartridge; 32. Filter plate; 33. Water inlet pipe; 34. Discharge ramp; 35. Waste pipe; 36. Bracket; 37. Water pump; 4. Air dissolving mechanism; 41. Connecting pipe; 42. Casing; 43. Conical tube 1; 44. Conical tube 2; 45. Air inlet pipe; 46. Water guide pipe; 5. Aeration mechanism; 51. Aeration cylinder; 52. Air pump; 53. Rotating shaft; 54. Push rod; 55. Bevel gear set; 56. Connecting frame; 57. Turbine; 6. Impurity discharge cylinder; 7. Water discharge cylinder; 8. Overflow pipe. DETAILED DESCRIPTION

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0074] See also Figure 1-9 One embodiment of the present invention is: a wood production wastewater treatment device, including a separation cylinder 1, and further comprising:

[0075] The cleaning unit 2 is provided in the separation cylinder 1 and is used to clean the suspended matter in the separation cylinder 1;

[0076] The primary filtration mechanism 3 is provided on one side of the separation cylinder 1 and is used for preliminarily separating impurities in the wastewater during wood production;

[0077] The aeration mechanism 5 is provided at the bottom of the separation cylinder 1 and is used to aerate the wastewater after the primary filtration;

[0078] The air dissolving mechanism 4 is provided at the bottom of the separation cylinder 1 and is located on one side of the aeration mechanism 5, and is used to continue the air dissolving treatment in the aerated wastewater;

[0079] Wherein, cleaning unit 2 comprises:

[0080] The suspended matter cleaning mechanism 21 is provided above the separation cylinder 1 and is used to rotate in a circle on the top of the separation cylinder 1 to clean the suspended matter suspended on the surface of the water body;

[0081] The scraping mechanism 22 is provided on the suspended matter cleaning mechanism 21 and scrapes impurities on the inner wall of the separation cylinder 1 when rotating with the suspended matter cleaning mechanism 21;

[0082] The suspended matter discharge mechanism 23 is provided in the middle of the separation cylinder 1 and is used to collect the suspended matter cleaned by the suspended matter cleaning mechanism 21 and discharge it outward;

[0083] The suspended matter discharging mechanism 23 includes:

[0084] Isolation ring 1 231 and isolation ring 2 232 are connected at the axis of separation cylinder 1, and isolation ring 1 231 is located outside isolation ring 232;

[0085] The bottom of the separation cylinder 1 is connected to the impurity discharge cylinder 6, and the interior of the isolation ring 232 is movably connected to the lower hopper 233, and the bottom outer wall of the lower hopper 233 is movably connected to the inner wall of the impurity discharge cylinder 6 for outwardly conducting suspended impurities;

[0086] The water outlet cylinder 7 is provided below the separation cylinder 1 and is connected between the isolation ring 1 231 and the isolation ring 2 232;

[0087] Multiple overflow pipes 9 are connected to the inner wall of the isolation ring 1 231 and are used to introduce water between the isolation ring 1 231 and the isolation ring 2 232;

[0088] The outer wall of the lower hopper 233 is provided with a spring 234 for pushing the lower hopper 233 upward.

[0089] The suspended matter cleaning mechanism 21 comprises:

[0090] The rotating rod 211 is provided at the top of the separation cylinder 1, and a roller 212 is fixedly sleeved on one side of the outer wall of the rotating rod 211 and rolls on the top of the separation cylinder 1;

[0091] The screen 213 is movably mounted on the outer wall of the rotating rod 211, and the screen 213 is conical and has an opening at the top for receiving suspended matter;

[0092] Roller 2112 is fixedly mounted on one end of the screen 213 and rolls on top of the isolation ring 1 231;

[0093] The outer wall of one side of the large circumference of the screen 213 is rotatably connected to a swivel 218 via a bearing 2110, and one side of the swivel 218 is fixedly connected to a gear ring 217;

[0094] The inner wall of the gear ring 217 is connected to the rotating rod 211 through the gear set 216, and the gear ring 217 is driven to rotate through the rotating rod 211;

[0095] The outer wall of the screen 213 is connected to the installation box 214, and the outer wall of the installation box 214 is connected to the motor 215, and the output end of the motor 215 is connected to the rotating rod 211 for driving the rotating rod 211 to rotate;

[0096] A fixed ring 2111 is rotatably connected to the outer wall of the screen 213;

[0097] The two scrapers 219 are tapered and arc-shaped, and the inner walls are connected to the outer walls of the rotating ring 218 and the outer walls of the fixed ring 2111 through connecting rods, so as to scrape the suspended matter into the scrapers 219 during rotation.

[0098] The scraper 219 is eccentrically connected to the outer wall of the rotating ring 218 and the fixed ring 2111 through a connecting rod to facilitate scraping and collecting suspended matter;

[0099] The gear set 216 includes three spur gears, two of which are connected to the screen 213 through a transmission rod, and one is sleeved on the outer wall of the rotating rod 211. The three spur gears are meshed with each other and with the gear ring 217 in sequence.

[0100] Two scraping rods 2113 are connected to the inner wall of the opening of the screen 213, and the outer wall of the scraping rod 2113 is in contact with the side of the scraper 219 close to the screen 213, so as to scrape off the suspended matter attached to the scraper 219 and allow it to enter the screen 213.

[0101] The scraping mechanism 22 comprises:

[0102] A plurality of fixing rods 221 are connected to the screen 213 in groups of two;

[0103] The sliding sleeve 222 is slidably connected to the outer wall of the fixing rod 221;

[0104] The sliding rod 223 is fixedly connected to the outer wall of the sliding sleeve 222;

[0105] Two wave grooves 226 are respectively formed on the inner wall of the separation cylinder 1 and the outer wall of the isolation ring 231, and the sliding rod 223 slides in the wave grooves 226;

[0106] The two brush plates 1 224 are respectively connected to the bottom of the sliding sleeve 222 on both sides, and the bottom of the brush plate 1 224 is connected to the brush plate 2 225 for brushing away impurities on the inner wall of the separation cylinder 1 .

[0107] The primary filter mechanism 3 includes:

[0108] The primary filter cartridge 31 is provided on one side of the separation cylinder 1, and a bracket 36 is connected to the bottom of the primary filter cartridge 31;

[0109] A water inlet pipe 33 is installed on one side of the outer wall of the primary filter cartridge 31 for introducing wastewater into the primary filter cartridge 31;

[0110] Two filter plates 32 are provided on the outer wall of the primary filter cartridge 31 to isolate impurities in the wastewater;

[0111] The discharge inclined plate 34 is provided at the bottom of the primary filter cartridge 31 and is used to discharge the isolated waste materials;

[0112] The waste pipe 35 is connected to the bottom of the primary filter cartridge 31 and is used to guide the isolated waste;

[0113] The water pump 37 is provided on the outer wall of the primary filter cartridge 31 and draws the preliminarily filtered wastewater into the aeration cylinder 51 through a pipe connected to the upper portion of the primary filter cartridge 31 .

[0114] The aeration mechanism 5 comprises:

[0115] The aeration cylinder 51 is provided below the separation cylinder 1 and is connected to the water outlet of the water pump 37 via a conduit;

[0116] The air pump 52 is provided on one side of the separation cylinder 1 and is introduced into the interior of the aeration cylinder 51 .

[0117] The air dissolving mechanism 4 comprises:

[0118] The connecting pipe 41 is fixedly connected to the outer wall of the aeration cylinder 51, and the other side of the connecting pipe 41 is connected to the sleeve 42;

[0119] A conical tube 43 is connected to one side of the sleeve 42 and is connected to the outer wall of the separation cylinder 1 through a water guide pipe 46 for introducing wastewater;

[0120] The second conical tube 44 is provided on the inner wall of the sleeve 42 and connected to the first connecting tube 41;

[0121] An air inlet pipe 45 is connected to the outer wall of the sleeve 42 and is used to introduce gas into the sleeve 42;

[0122] The aeration mechanism 5 also includes:

[0123] The connecting frame 56 is connected to the inner wall of the connecting pipe 41, and the middle part of the connecting frame 56 is rotatably connected to a round rod;

[0124] The inner wall of the connecting pipe 41 is provided with a turbine 57, and the round rod is connected to the turbine 57;

[0125] The rotating shaft 53 is rotatably connected to the top of the inner wall of the aeration cylinder 51 through a bearing, and the outer wall of the rotating shaft 53 is connected to a plurality of levers 54 for driving the wastewater aeration;

[0126] The bevel gear set 55 is disposed between the round rod and the rotating shaft 53 and is used to drive the rotating shaft 53 to rotate.

[0127] Working principle: When cleaning the wastewater from wood processing, the wastewater containing wood impurities is introduced into the primary filter cartridge 31 from the water inlet pipe 33. At this time, the water will flow upward and fill the interior of the primary filter cartridge 31. At this time, the impurities in the water are preliminarily isolated by the filter plate 32. At this time, the impurities slide down along the discharge inclined plate 34 and accumulate on the right side of the bottom of the filter plate. The preliminarily filtered water is pumped by the water pump 37 and enters the interior of the aeration cylinder 51. At this time, the water enters the aeration cylinder 51 and is filled with gas into the aeration cylinder 51 through the air pump 52. At this time, the gas is mixed with the water and increases the water pressure inside the aeration cylinder 51, thereby causing the water to flow along the connecting pipe 41 and quickly contact the turbine 57. At this time, the round rod is driven to rotate rapidly, and then the rotating shaft 53 is synchronously driven to rotate through the bevel gear set 55, and then the lever 54 is driven to rotate, thereby further promoting the fusion of wastewater and gas and increasing the gas content in the water.

[0128] When the water flow is pushed by pressure into the second conical tube 44, the flow rate will increase further and enter the air inlet pipe 45, and then enter the first conical tube 43 again. At this time, a Venturi effect is formed, and the flow rate in the narrow section increases to form a negative pressure. The gas entering from the air inlet pipe 45 is sucked in and mixed violently with the water to form a gas-liquid two-phase flow. Then, it enters the water guide pipe 46 through the first conical tube 43 and enters the separation cylinder 1 through the water guide pipe 46. The tiny bubbles generated by the mixture of water and gas float the grease or suspended particles in the wastewater to the water surface for centralized removal, while the clean water sinks.

[0129] Furthermore, by starting the motor 215, the rotating rod 211 is driven to rotate, and the roller 1 212 is driven to rotate on the separation cylinder 1. During the rotation, since the scraping mechanism 22 is limited to the inner wall of the separation cylinder 1, the screen 213 remains stationary, and the rotating rod 211 drives the gear ring 217 to rotate through the gear set 216, and then drives the rotating rod 218 to rotate through the gear ring 217, thereby driving the scraper 219 connected to its outer wall to rotate. When the scraper 219 rotates, the suspended matter suspended in the separation cylinder 1 can be scraped off by the arc-shaped scraper 219. The suspended matter is scraped off and collected inside the scraper 219, so that the suspended matter can be collected. When the suspended matter is collected inside the scraper 219 and reaches a high point when the scraper 219 continues to rotate, the suspended matter inside the scraper 219 will slide into the screen 213. At this time, the water in the suspended matter will be separated by the screen 213, and the suspended matter will enter the isolation ring 232 along the conical screen 213 for collection; the water in the separation cylinder 1 will enter the overflow pipe 8 through the hole at the bottom of the separation cylinder 1 and be introduced between the isolation ring 1 231 and the isolation ring 2 232.

[0130] When the scraper 219 rotates, it will also stick to the scraper rod 2113 provided on the screen 213, and the scraper rod 2113 will scrape off the suspended matter attached to the scraper 219, further improving the treatment effect;

[0131] Furthermore, when roller 1 212 rotates, it drives the screen 213 to move on the separation cylinder 1, and at this time, drives the fixed rod 221 to move synchronously. At this time, by synchronously driving the sleeve 222 to move and using the slide rod 223 sliding in the wave groove 226 to move, the sleeve 222 can be changed to slide up and down on the fixed rod 221. At this time, the brush plate 1 224 and the brush plate 2 225 are synchronously driven to brush the inner wall and bottom of the separation cylinder 1, and the separation cylinder 1 and the bottom are brushed in conjunction with the rotation movement, thereby further cleaning the impurities on the inner wall of the separation cylinder 1 and improving the cleaning effect.

[0132] When the suspended matter collected by the screen 213 slides along the inclined surface into the isolation ring 232 and enters the lower hopper 233, the suspended impurities accumulated in the lower hopper 233 slide down under the action of gravity, and through the change of gravity inside the lower hopper 233, the spring 234 produces vibration, which can further promote the discharge speed of the suspended matter.

[0133] The present invention provides a wood production wastewater treatment device. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A wood production wastewater treatment device, comprising a separation drum (1), characterized in that: Also includes: A cleaning unit (2) is provided in the separation cylinder (1) and is used to clean suspended matter in the separation cylinder (1); A primary filtering mechanism (3) is provided on one side of the separation cylinder (1) and is used for preliminarily separating impurities in wastewater during wood production; an aeration mechanism (5), arranged at the bottom of the separation cylinder (1), for aerating the wastewater after primary filtration; The air dissolving mechanism (4) is arranged at the bottom of the separation cylinder (1) and located on one side of the aeration mechanism (5), and is used to continue the air dissolving treatment in the aerated wastewater; Wherein, the cleaning unit (2) comprises: A suspended matter cleaning mechanism (21) is arranged above the separation cylinder (1) and is used to rotate in a circle on the top of the separation cylinder (1) to clean the suspended matter suspended on the surface of the water body; A scraping mechanism (22) is provided on the suspended matter cleaning mechanism (21) and scrapes impurities on the inner wall of the separation cylinder (1) while rotating along with the suspended matter cleaning mechanism (21); A suspended matter discharge mechanism (23) is provided in the middle of the separation cylinder (1) and is used to collect the suspended matter cleaned by the suspended matter cleaning mechanism (21) and discharge the collected suspended matter outward; Wherein, the suspended matter discharging mechanism (23) comprises: Isolation ring 1 (231) and isolation ring 2 (232) are connected at the axis of the separation cylinder (1), and isolation ring 1 (231) is located outside isolation ring 2 (232); The bottom of the separation cylinder (1) is connected to an impurity discharge cylinder (6), and the interior of the second isolation ring (232) is movably connected to a lower hopper (233), and the bottom outer wall of the lower hopper (233) is movably connected to the inner wall of the impurity discharge cylinder (6) for guiding suspended impurities outward; A water outlet cylinder (7) is arranged below the separation cylinder (1) and is connected between the first isolation ring (231) and the second isolation ring (232); A plurality of overflow pipes (9) are connected to the inner wall of the isolation ring 1 (231) and are used to introduce water between the isolation ring 1 (231) and the isolation ring 2 (232); The outer wall of the lower hopper (233) is provided with a spring (234) for pushing the lower hopper (233) upward.

2. The wood production wastewater treatment device according to claim 1, characterized in that: The suspended matter cleaning mechanism (21) comprises: A rotating rod (211) is arranged at the top of the separation cylinder (1), and a roller (212) is fixedly sleeved on one side of the outer wall of the rotating rod (211) and rolls on the top of the separation cylinder (1); a screen (213) movably sleeved on the outer wall of the rotating rod (211), wherein the screen (213) is conical and has an opening at the top for receiving suspended matter; Roller 2 (2112) is fixedly mounted on one end of the screen (213) and rolls on the top of isolation ring 1 (231); The outer wall of one side of the large circumference of the screen (213) is rotatably connected to a rotating ring (218) via a bearing (2110), and one side of the rotating ring (218) is fixedly connected to a gear ring (217); The inner wall of the gear ring (217) is connected to the rotating rod (211) through the gear set (216), and the gear ring (217) is driven to rotate through the rotating rod (211); The outer wall of the screen (213) is connected to a mounting box (214), and the outer wall of the mounting box (214) is connected to a motor (215), and the output end of the motor (215) is connected to the rotating rod (211) for driving the rotating rod (211) to rotate; A fixing ring (2111) rotatably connected to the outer wall of the screen (213); The two scrapers (219) are tapered and arc-shaped, and the inner walls are connected to the outer walls of the rotating ring (218) and the outer walls of the fixed ring (2111) through connecting rods, so as to scrape the suspended matter into the scrapers (219) during rotation.

3. The wood production wastewater treatment device according to claim 2, characterized in that: The scraper (219) is eccentrically connected to the outer walls of the rotating ring (218) and the fixed ring (2111) through a connecting rod to facilitate scraping and collecting suspended matter; The gear set (216) includes three spur gears, two of which are connected to the screen (213) through a transmission rod, and one is sleeved on the outer wall of the rotating rod (211), and mesh with each other in sequence and with the gear ring (217); Two scraping rods (2113) are connected to the inner wall of the opening of the screen (213), and the outer wall of the scraping rod (2113) is in contact with the side of the scraper (219) close to the screen (213), so as to scrape off the suspended matter attached to the scraper (219) and allow it to enter the screen (213).

4. The wood production wastewater treatment device according to claim 3, characterized in that: The scraping mechanism (22) comprises: A plurality of fixing rods (221) are connected to the screen (213) in groups of two; A sliding sleeve (222) is slidably connected to the outer wall of the fixed rod (221); A sliding rod (223) is fixedly connected to the outer wall of the sliding sleeve (222); Two wave grooves (226) are respectively formed on the inner wall of the separation cylinder (1) and the outer wall of the isolation ring (231), and the sliding rod (223) slides in the wave grooves (226); Two brush plates (224) are respectively connected to the bottom of the sliding sleeve (222) on both sides, and the bottom of the brush plate (224) is connected to the brush plate (225) for brushing away impurities on the inner wall of the separation cylinder (1).

5. The wood production wastewater treatment device according to claim 4, characterized in that: The primary filtering mechanism (3) comprises: A primary filter cartridge (31) is arranged on one side of the separation cartridge (1), and a bracket (36) is connected to the bottom of the primary filter cartridge (31); A water inlet pipe (33) is installed on one side of the outer wall of the primary filter cartridge (31) for introducing wastewater into the primary filter cartridge (31); Two filter plates (32) are arranged on the outer wall of the primary filter cartridge (31) and are used to isolate impurities in the wastewater; A discharge inclined plate (34) is provided at the bottom of the primary filter cartridge (31) and is used to discharge the isolated waste materials; A waste pipe (35) is connected to the bottom of the primary filter cartridge (31) and is used to guide the isolated waste; The water pump (37) is arranged on the outer wall of the primary filter cartridge (31) and draws the waste water initially filtered out into the aeration cylinder (51) through a pipe connected to the upper part of the primary filter cartridge (31).

6. The wood production wastewater treatment device according to claim 5, characterized in that: The aeration mechanism (5) comprises: An aeration cylinder (51) is disposed below the separation cylinder (1) and is connected to the water outlet of the water pump (37) via a conduit; The air pump (52) is arranged on one side of the separation cylinder (1) and is introduced into the interior of the aeration cylinder (51).

7. The wood production wastewater treatment device according to claim 6, characterized in that: The air dissolving mechanism (4) comprises: A connecting pipe (41) is fixedly connected to the outer wall of the aeration cylinder (51), and a sleeve (42) is connected to the other side of the connecting pipe (41); A conical tube (43) is connected to one side of the sleeve (42) and is connected to the outer wall of the separation cylinder (1) through a water guide pipe (46) for introducing wastewater; The second conical tube (44) is arranged on the inner wall of the sleeve (42) and connected to the first connecting tube (41); The air inlet pipe (45) is connected to the outer wall of the sleeve (42) and is used to introduce gas into the sleeve (42).

8. The wood production wastewater treatment device according to claim 7, characterized in that: The aeration mechanism (5) further comprises: A connecting frame (56) is connected to the inner wall of the connecting pipe (41), and a round rod is rotatably connected to the middle portion of the connecting frame (56); The inner wall of the connecting pipe (41) is provided with a turbine (57), and the round rod is connected to the turbine (57); A rotating shaft (53) is rotatably connected to the top of the inner wall of the aeration cylinder (51) through a bearing, and a plurality of levers (54) are connected to the outer wall of the rotating shaft (53) for driving the wastewater aeration; The bevel gear set (55) is arranged between the round rod and the rotating shaft (53) and is used to drive the rotating shaft (53) to rotate.

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