Wastewater treatment device for agricultural machinery manufacturing

Abstract

The invention discloses a waste water treatment device for agricultural machinery manufacturing, which comprises an oil removal tank communicated with the output side of a waste water discharge pipe and used for carrying out oil removal treatment on waste water, the oil removal tank is provided with an oil removal mechanism, the oil removal mechanism comprises a three-axis moving assembly and an oil removal assembly, the three-axis moving assembly is erected on the periphery of the oil removal tank, and the three-axis moving assembly is connected with the oil removal assembly; the oil removing assembly is roller type oil absorbing and removing equipment, and the three-axis moving assembly can drive the oil removing assembly to move along the oil layer face of the oil removing pool and adsorb grease, an oil film and an oil layer. The sedimentation tank is communicated with the output side of the oil removal tank and is used for carrying out pre-sedimentation separation on the wastewater; the filter is arranged on the right upper side of the sedimentation tank and is communicated with the output side of the sedimentation tank through a lifting pump, and the wastewater is pumped into the filter based on the lifting pump and is subjected to hierarchical filtration; and the deionizer is arranged on one side of the filter, is communicated with the output side of the filter and is used for removing residual heavy metal plasma substances in the wastewater.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery manufacturing wastewater treatment, in particular to a wastewater treatment device for agricultural machinery manufacturing. Background Art

[0002] Agricultural machinery refers to various machines used in the process of crop planting and animal husbandry production, as well as in the primary processing and treatment of agricultural and livestock products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil cultivation machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery and agricultural transportation.

[0003] Compared with other manufacturing fields, agricultural machinery manufacturing produces more wastewater containing oil and heavy metals. Therefore, it is difficult to remove oil and heavy metals using conventional chemical treatment solutions. The existing technical solutions include the following:

[0004] 1) Chinese patent CN109205908A discloses a coal chemical wastewater pretreatment device, which includes a wastewater tank and an oil removal tank; the wastewater tank and the oil removal tank are connected through a water inlet pipe at the bottom. The water inlet pipe is provided with a plurality of heating rings, and the heating rings are closely attached to the outer surface of the water inlet pipe. The upper end wall and the inner wall of the oil removal tank are respectively provided with a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel. The filter screen is a rectangular parallelepiped structure and includes the end of the water outlet therein. A connecting water pipe is provided at the lower end of the filter water box. By heating the wastewater during its inflow, the density of the oil substance is greatly reduced to make it float, and it is sucked out by the oil absorbent cotton and squeezed into the oil collection barrel, and then the filter screen in the filter water box is used to further ensure that all the oil impurities are removed.

[0005] 2) Chinese patent CN115611362A discloses an oil-absorbing felt type oil removal device for industrial wastewater pretreatment, wherein a liquid inlet pipe connected to the first storage chamber is fixedly provided on the barrel body, a spline shaft is placed above the partition, a fixed shaft is coaxially connected to the top of the spline shaft, a rotating drive module is connected to the fixed shaft in a transmission manner, and the diameter of the fixed shaft is larger than the diameter of the spline shaft, a top plate is provided above the first storage chamber, a first magnetic suction member is fixedly installed on the top plate, an oil suction mechanism is sleeved on the spline shaft below the top plate, a first spring is sleeved on the spline shaft between the oil suction mechanism and the partition, a second magnetic suction member is installed on the oil suction mechanism, and a corresponding squeezing roller is installed in the second storage chamber below the oil suction mechanism, and the oil suction mechanism has a first working state and a second working state. The present invention can preliminarily absorb the oil in the wastewater by setting the oil suction mechanism, thereby reducing the subsequent sewage treatment cost, and can preliminarily filter the wastewater at the same time.

[0006] 3) Chinese patent CN113248054B discloses a marine product processing wastewater treatment device, including an oil absorption device, a reaction device and a slag removal device. When working, firstly, wastewater is injected into the oil absorption tank. When the wastewater in the oil absorption tank is at a certain height, it will contact the floating plate. At this time, the density of the floating plate is adjusted by adjusting the airbag, so that the floating plate floats between the wastewater and the grease. Then, the oil absorption motor works to drive the two first rollers to rotate through the meshing of the chain sprocket, and the clamping force between the first roller and the clamping roller drives the oil absorption cloth to move. At this time, the oil absorption cloth located at the two second rollers can absorb the grease. With the continuous injection of wastewater, the floating plate will rise with the liquid level, and the two second rollers will also drive the oil absorption cloth to rise, so that the oil absorption cloth can absorb the grease following the height of the wastewater liquid level, thereby enhancing the oil removal efficiency.

[0007] The above-mentioned document 1 adopts the method of oil removal + filtration to treat wastewater. The main focus of the scheme is: the setting of the oil removal structure, specifically, by heating the wastewater during its inflow process, greatly reducing the density of oil substances so that it floats, sucking it out through oil-absorbing cotton and then squeezing it into the oil collection barrel, and then further ensuring that all oil impurities are removed through the filter net in the water filter box; the above-mentioned document 2 also focuses on the oil absorption mechanism. Document 2 adopts oil absorption felt type oil removal, specifically, the oil on the surface of the wastewater in the first storage chamber is absorbed by the oil absorption mechanism. When the oil suction mechanism is in the second working state, the oil suction mechanism and the squeezing roller are squeezed, so that the oil absorbed in the oil suction mechanism is squeezed into the second storage chamber, thereby realizing the pretreatment of the oil-containing wastewater and separating most of the oil directly from the wastewater; and file 3 uses a floating plate to float between the wastewater and the grease, and the oil suction motor drives the two first rollers to rotate through the engagement of the chain sprocket, and drives the oil absorption cloth to move through the clamping force between the first roller and the clamping roller, and the oil absorption cloth located at the two second rollers can absorb the grease.

[0008] The above-mentioned documents 1, 2, and 3 all use oil absorption felt / oil absorption floating plate / air floating plate to absorb oil for wastewater with a high oil content, which can reduce the use of degreasing agents, but the above-mentioned document 2 is mainly for the treatment of small-scale wastewater containing oil, which introduces the oily wastewater into the barrel for treatment. In addition, the squeezing roller provided in document 2 squeezes the oil absorption mechanism to make the wastewater flow into the second storage chamber, but in actual conditions, the grease in the oily wastewater will adhere to an oil film layer or oil foam, and when squeezed, it will also adhere to the squeezing roller, resulting in the squeezing roller not being cleaned properly; while document 1 uses an oil-absorbing cotton that can cover the degreasing pool for absorption. Since the area of ​​the degreasing pool is large, the volume of the oil-absorbing cotton configured in this way is also large. The oil-absorbing cotton is heavy after absorbing grease and wastewater, and it is difficult for the guide wheel to tow it, resulting in the need to configure an ultra-large winch for traction, and the effect and benefits are not worth the loss; while document 3 uses a floating plate type oil absorption, and its general principle is consistent with document 1, and its defects are also consistent with document 1.

[0009] Based on the defects of the above-mentioned existing application documents, the present invention application proposes a wastewater treatment device for agricultural machinery manufacturing. The wastewater treatment device is based on the oil absorption + oil removal mode. The difference is that the present application utilizes a combination of a three-axis moving component + an oil removal component. The three-axis moving component can cover the entire oil removal pool, so that the oil removal component can gradually clean the oil surface of the oil removal pool. In addition, the oil removal component adopts a sponge roller type oil absorption. The difference from other sponge / roller oil absorption is that: the oil removal component of the present application adopts side-by-side oil absorption rollers, which have a larger processing range. The oil absorption roller can perform an oil scraping action under the drive of a driving device, and can scrape off the oil film on the oil surface of the wastewater, so that the oil film adheres to it. The oil absorption roller can move to the inside of the extrusion structure. The extrusion structure adopts a method of first scraping off the oil foam and the oil film, and then squeezing out the grease for treatment, so that the oil film on the oil absorption roller can be cleaned, thereby avoiding the oil film from returning to the wastewater from the oil absorption roller when the wastewater is cleaned again. Summary of the invention

[0010] The purpose of the present invention is to provide a wastewater treatment device for agricultural machinery manufacturing, which adopts a combination of a three-axis moving component + an oil removal component. The three-axis moving component can cover the entire oil removal tank, so that the oil removal component can gradually clean the oil surface of the oil removal tank. In conjunction with a sedimentation tank, a filter, and a deionizer, it can remove grease, impurities and metal ions in the wastewater, and is more suitable for the field of agricultural machinery manufacturing.

[0011] To achieve the above object, the present invention provides the following technical solution: a wastewater treatment device for agricultural machinery manufacturing, comprising:

[0012] An oil removal tank is connected to the output side of the wastewater discharge pipe and is used to remove oil from the wastewater. The oil removal tank is provided with an oil removal mechanism, wherein the oil removal mechanism includes a three-axis moving component and an oil removal component. The three-axis moving component is mounted around the oil removal tank. The oil removal component is a roller-type oil suction and oil removal device. The three-axis moving component can drive the oil removal component to move along the oil surface of the oil removal tank and absorb grease, oil film and oil layer.

[0013] a sedimentation tank connected to the output side of the oil removal tank and used for pre-sedimentation and separation of wastewater;

[0014] A filter is arranged on the upper side of the sedimentation tank and connected to the output side of the sedimentation tank through a lifting pump, and the wastewater is pumped into the filter by the lifting pump for layer filtration;

[0015] A deionizer is arranged on one side of the filter and connected to the output side of the filter, and is used to remove residual heavy metal ion substances in the wastewater.

[0016] Preferably, the three-axis moving assembly includes a first electric cylinder, a rail frame, a first screw, a screw seat, a mounting frame, and a moving support. The rail frame is provided with two groups and is parallelly distributed on the upper side of the degreasing tank. The lower ends of the two groups of rail frames are connected to the first electric cylinder. A first screw is rotatably mounted on the inner side of each rail frame. The rear end of the first screw is driven by a motor. A screw seat is sleeved on the first screw. The mounting frame is connected between the two screw seats. A track is integrally formed on the lower side of the mounting frame. A tooth plate is provided on one side of the track. The moving support can be slidably mounted on the track. A first gear device that can mesh with the tooth plate and move the moving support along the track is provided on the upper side of the moving support. The oil removal component is installed on the lower side of the mobile support and can move forward and backward, left and right, and up and down with the three-axis mobile component. The three-axis mobile component can realize X-axis (front and back), Y-axis (left and right), and Z-axis (up and down lifting) movements, among which the X-axis (front and back) movement is to use the first screw to drive the screw seat to move, so that the mounting frame is in a forward and backward moving state, and the oil removal component can perform a lateral oil scraping action in the left and right moving state; the Y-axis (left and right) movement is to use the first gear device to engage the gear plate, so that the mobile support slides along the track, thereby realizing left and right movement; the Z-axis (up and down lifting) movement is to use the first electric cylinder to drive the rail frame and other structures to move upward and downward, so as to realize the oil removal component contacting or staying away from the oil surface.

[0017] Preferably, the oil removal assembly includes a shell, an oil suction roller, a second electric cylinder, and a slide, wherein a downwardly convex oil collecting groove is provided on one side of the shell end surface, and openings are provided at intervals on the other side of the shell end surface, and slots are provided on the left and right sides of the shell, and a second electric cylinder and a slide are provided in each slot, and the slide can be slidably connected to the inner wall of the slot, and the shaft end of the second electric cylinder is connected to the slide. The number and position of the oil suction rollers correspond to the openings provided on the shell end surface, and the oil suction roller includes a sponge rubber sleeve and a roller rod passing through the inner side of the sponge rubber sleeve, wherein the sponge rubber sleeve can be tightly connected to the roller rod through an inner shaft sleeve, and the two ends of the roller rod are respectively rotatably connected to the slide in the slot through bearings, and a third electric cylinder is installed on the bearing close to one side of the oil collecting groove, and the shaft end of the third electric cylinder is connected to one side of the sponge rubber sleeve, and the third electric cylinder can drive the sponge rubber sleeve to move from the opening to the oil collecting groove.

[0018] Preferably, a driving device is installed on the side of the oil suction roller away from the third electric cylinder, and the driving device is used to drive the oil suction roller to swing so that it can scrape oil. The driving device includes a swing arm and a second gear device, wherein the lower end of the swing arm is integrally formed with roller sleeves corresponding to the number of roller rods, and the roller sleeves can be sleeved on the roller rod, and the upper end of the swing arm is integrally formed with a rack, and the second gear device can mesh with the rack and enable the swing arm to drive multiple groups of oil suction rollers to rotate.

[0019] Preferably, the first gear device and the second gear device are gears driven by a servo motor. When the oil removal assembly moves downward with the three-axis moving assembly and contacts the wastewater oil surface, the second gear device meshes with the rack, and the swing arm drives the multiple sets of oil suction rollers to rotate, and the sponge rubber sleeves contained in the multiple sets of oil suction rollers are used to absorb the oil film and grease on the liquid surface of the area. Since the oil suction roller can rotate with the swing arm, the absorption effect of the oil suction roller is better, and the entire roller surface of the oil suction roller can absorb the oil film and grease, and can perform an oil scraping action to make the oil film adhere to it.

[0020] Preferably, the oil collecting tank comprises an upper tank body and a lower tank body, wherein the lower tank body is an oil collecting bin with a cavity, the lower tank body is connected to the upper tank body, and the front and rear ends of the inner side of the upper tank body are provided with an extrusion structure for extruding the oil suction roller.

[0021] Preferably, the extrusion structure includes a second screw, a slide bracket and an extrusion roller, wherein one side of the second screw shaft end is driven by a motor, the second screw is provided with two thread segments with opposite screw directions, the slide bracket is provided with two groups and they are respectively mounted on the two thread segments, the bottom of the slide bracket is slidably connected to the top wall of the lower tank body, and the slide brackets at the front and rear ends of the inner side of the upper tank body are provided with extrusion rollers. A servo motor for driving the extrusion roller to rotate is provided on one side of the slide bracket, and the extrusion roller has an integrally formed extrusion part and an oil scraping part, wherein the oil scraping part is a toothed structure, and the extrusion part is a plate-like structure, and the two extrusion rollers can approach each other when the second screw rotates and use the oil scraping part to scrape off the oil foam and oil film on the outer side of the oil suction roller, and use the extrusion part to squeeze out the grease adsorbed by the oil suction roller.

[0022] Preferably, after the oil removal component absorbs the oil film, the second electric cylinder drives the slide upward and the entire oil suction roller group upward. When it reaches the upper position, the third electric cylinder drives the sponge rubber sleeve to move from the opening (the position in contact with the oil surface in the oil removal tank) to the direction of the oil collecting tank. When it moves to just above the oil collecting tank, the second electric cylinder drives the oil suction roller group downward and extends into the oil collecting tank. The sponge rubber sleeve is scraped and squeezed by two squeezing rollers moving in opposite directions in the oil collecting tank, so that the oil film and oil foam are scraped into the lower tank body. At the same time, grease will also flow into the lower tank body from the channel between the upper tank body and the lower tank body.

[0023] The treatment steps of the above wastewater treatment device include the following:

[0024] 1) Wastewater is discharged into the degreasing tank through the wastewater discharge pipe. Grease in the wastewater floats on the surface of the degreasing tank to form an oil layer. At this time, the three-axis moving component drives the degreasing component to move downward first, and then move forward and backward or left and right to remove the oil surface of the wastewater. The three-axis moving component moves upward according to the set logic to enable the degreasing component to squeeze out and collect the grease;

[0025] 2) After the wastewater grease is removed, open the valve connecting the degreasing tank and the sedimentation tank. At this time, the wastewater enters the sedimentation tank and is flocculated and precipitated by adding flocculants;

[0026] 3) After the sedimentation treatment is completed, the wastewater is pumped into the filter by a lift pump and filtered in stages. The filter can be a membrane filter;

[0027] 4) The wastewater after filtering through the filter layer enters the deionizer to remove heavy metal ion substances.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention adopts a combination of a three-axis moving component + an oil removal component. The three-axis moving component can cover the entire oil removal tank, so that the oil removal component can gradually clean the oil surface of the oil removal tank. In conjunction with a sedimentation tank, a filter, and a deionizer, grease, impurities, and metal ions in wastewater can be removed, and it is more suitable for the field of agricultural machinery manufacturing.

[0030] 2. The oil removal component of the present invention adopts a sponge roller type oil absorption, which is different from other sponge / roller type oil absorptions in that: the oil removal component of the present application adopts side-by-side oil absorption rollers, which have a larger processing range. The oil absorption rollers can perform oil scraping action under the drive of a driving device, and can scrape off the oil film on the oil surface of the wastewater so that the oil film adheres to it. The oil absorption roller can move to the inside of the extrusion structure. The extrusion structure adopts a method of first scraping off the oil foam and the oil film and then squeezing out the grease for processing. The oil film on the oil absorption roller can be cleaned, thereby avoiding the oil film from returning to the wastewater from the oil absorption roller when the wastewater is cleaned again. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the oil removal mechanism in an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the partial structure of the three-axis moving assembly in an embodiment of the present invention;

[0034] Figure 4 The structure of the oil removal component in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 5 The structure of the oil removal component in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0036] Figure 6 It is a structural schematic diagram of the extrusion structure in an embodiment of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the extrusion structure when scraping the oil film in an embodiment of the present invention;

[0038] Figure 8 Schematic diagram of the structure of the extrusion roller in an embodiment of the present invention.

[0039] In the figure: 1. oil removal tank; 2. sedimentation tank; 3. filter; 4. deionizer; 5. first electric cylinder; 6. rail frame; 7. first screw; 8. screw seat; 9. mounting frame; 10. movable support; 11. tooth plate; 12. first gear device; 13. housing; 14. oil collecting tank; 15. opening; 16. second electric cylinder; 17. slide; 18. oil suction roller; 19. third electric cylinder; 20. swing arm; 21. second gear device; 22. rack; 23. second screw; 24. slide bracket; 25. extrusion roller; 251. extrusion part; 252. oil scraping part. DETAILED DESCRIPTION

[0040] 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 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 creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The present invention provides a technical solution: a wastewater treatment device for agricultural machinery manufacturing, which adopts a combination of a three-axis moving component + an oil removal component. The three-axis moving component can cover the entire oil removal tank, so that the oil removal component can be cleaned along the oil surface of the oil removal tank step by step. In conjunction with a sedimentation tank 2, a filter 3, and a deionizer 4, grease, impurities and metal ions in the wastewater can be removed, and the device is more suitable for the field of agricultural machinery manufacturing.

[0044] See also Figure 1 , a wastewater treatment device for agricultural machinery manufacturing, comprising:

[0045] An oil removal tank 1 is connected to the output side of the wastewater discharge pipe and is used to remove oil from the wastewater. The oil removal tank 1 is provided with an oil removal mechanism, wherein the oil removal mechanism includes a three-axis moving component and an oil removal component. The three-axis moving component is mounted around the oil removal tank 1. The oil removal component is a roller-type oil suction and oil removal device. The three-axis moving component can drive the oil removal component to move along the oil surface of the oil removal tank 1 and absorb grease, oil film and oil layer.

[0046] a sedimentation tank 2, connected to the output side of the degreasing tank 1, for pre-sedimentation and separation of wastewater;

[0047] A filter 3 is arranged on the upper side of the sedimentation tank 2 and connected to the output side of the sedimentation tank 2 through a lift pump, and the wastewater is pumped into the filter 3 by the lift pump for hierarchical filtration;

[0048] A deionizer 4 is disposed on one side of the filter 3 and connected to the output side of the filter 3 to remove residual heavy metal ion substances in the wastewater.

[0049] See also Figure 2 , Figure 3 In this embodiment, the three-axis moving assembly includes a first electric cylinder 5, a rail frame 6, a first screw 7, a screw seat 8, a mounting frame 9, and a moving support 10. Two groups of rail frames 6 are provided and are parallelly distributed on the upper side of the degreasing tank 1. The lower ends of the two groups of rail frames 6 are connected to the first electric cylinder 5. A first screw 7 is rotatably mounted inside each rail frame 6. The rear end of the first screw 7 is driven by a motor. The first screw 7 is sleeved with a screw seat 8. The mounting frame 9 is connected between the two screw seats 8. A track is integrally formed on the lower side of the mounting frame 9. A tooth plate 11 is provided on one side of the track. The moving support 10 can be slidably mounted on the track. A first gear device 12 that can mesh with the tooth plate 11 and move the moving support 10 along the track is provided on the upper side of the moving support 10. The oil removal component is installed on the lower side of the movable support 10 and can move forward and backward, left and right, and up and down with the three-axis movable component. The three-axis movable component can realize X-axis (front and back), Y-axis (left and right), and Z-axis (up and down lifting) movements, wherein the X-axis (front and back) movement is to use the first screw 7 to drive the screw seat 8 to move, so that the mounting frame 9 is in a forward and backward moving state, and the oil removal component can perform a lateral oil scraping action in the left and right moving state; the Y-axis (left and right) movement is to use the first gear device 12 to engage the gear plate 11, so that the movable support 10 slides along the track, thereby realizing left and right movement; the Z-axis (up and down lifting) movement is to use the first electric cylinder 5 to drive the rail frame 6 and other structures to move upward and downward, so as to realize the oil removal component contacting or staying away from the oil surface.

[0050] See also Figure 4 , Figure 5In this embodiment, the oil removal assembly includes a shell 13, an oil suction roller 18, a second electric cylinder 16, and a slide 17, wherein a downwardly convex oil collecting groove 14 is provided on one side of the end surface of the shell 13, and openings 15 are provided at intervals on the other side of the end surface of the shell 13. The left and right sides of the shell 13 are both provided with slots, and each slot is provided with a second electric cylinder 16 and a slide 17. The slide 17 can be slidably connected to the inner wall of the slot, and the shaft end of the second electric cylinder 16 is connected to the slide 17. The number and position of the oil suction rollers 18 correspond to the openings 15 provided on the end face of the shell 13. The oil suction rollers 18 include a sponge rubber sleeve and a roller rod passing through the inner side of the sponge rubber sleeve, wherein the sponge rubber sleeve can be tightly connected to the roller rod through an inner sleeve, and both ends of the roller rod are rotatably connected to the slide 17 in the slot through bearings, and a third electric cylinder 19 is installed on the bearing near the oil collecting tank 14. The shaft end of the third electric cylinder 19 is connected to one side of the sponge rubber sleeve. The third electric cylinder 19 can drive the sponge rubber sleeve to move from the opening 15 to the oil collecting tank 14.

[0051] In this embodiment, a driving device is installed on the side of the oil suction roller 18 away from the third electric cylinder 19, and the driving device is used to drive the oil suction roller 18 to swing so that it can scrape oil. The driving device includes a swing arm 20 and a second gear device 21, wherein the lower end of the swing arm 20 is integrally formed with a roller sleeve corresponding to the number of roller rods, and the roller sleeve can be sleeved on the roller rod, and the upper end of the swing arm 20 is integrally formed with a rack 22, and the second gear device 21 can mesh with the rack 22 and enable the swing arm 20 to drive multiple groups of oil suction rollers 18 to rotate.

[0052] In this embodiment, the first gear device 12 and the second gear device 21 are gears driven by a servo motor. When the oil removal assembly moves downward with the three-axis moving assembly and contacts the wastewater oil surface, the second gear device 21 engages the rack 22, and the swing arm 20 drives the multiple sets of oil suction rollers 18 to rotate, and the sponge rubber sleeves included in the multiple sets of oil suction rollers 18 are used to absorb the oil film and grease on the liquid surface of the area. Since the oil suction roller 18 can rotate with the swing arm 20, the absorption effect of the oil suction roller 18 is better, and the entire roller surface of the oil suction roller 18 can absorb the oil film grease, and can perform an oil scraping action to make the oil film adhere to it.

[0053] In this embodiment, the oil collecting tank 14 includes an upper tank body and a lower tank body, wherein the lower tank body is an oil collecting bin with a cavity, the lower tank body is connected to the upper tank body, and the front and rear ends of the inner side of the upper tank body are provided with an extrusion structure for extruding the oil suction roller 18.

[0054] See also Figure 6 , Figure 7In this embodiment, the extrusion structure includes a second screw 23, a slide bracket 24 and an extrusion roller 25, wherein one side of the axial end of the second screw 23 is driven by a motor, and the second screw 23 is provided with two thread segments with opposite screw directions. The slide bracket 24 is provided with two groups and is respectively mounted on the two thread segments. The bottom of the slide bracket 24 is slidably connected to the top wall of the lower trough body, and the extrusion roller 25 is installed on the slide bracket 24 at the front and rear ends inside the upper trough body.

[0055] See also Figure 6 , Figure 8 In this embodiment, a servo motor for driving the squeezing roller 25 to rotate is installed on one side of the slide bracket 24. The squeezing roller 25 has an integrally formed squeezing portion 251 and an oil scraping portion 252, wherein the oil scraping portion 252 is a toothed structure, and the squeezing portion 251 is a plate-like structure. The two squeezing rollers 25 can be close to each other when the second screw 23 rotates, and the oil scraping portion 252 can be used to scrape off the oil foam and oil film on the outside of the oil suction roller 18, and the squeezing portion 251 can be used to squeeze out the grease adsorbed by the oil suction roller 18.

[0056] In this embodiment, after the oil removal component absorbs the oil film, the second electric cylinder 16 drives the slide 17 upward and causes the entire oil suction roller 18 group to move upward. When the upward movement is in place, the third electric cylinder 19 drives the sponge rubber sleeve to move from the opening 15 (the position in contact with the oil surface in the oil removal tank 1) to the direction of the oil collecting tank 14. When it moves to the top of the oil collecting tank 14, the second electric cylinder 16 drives the oil suction roller 18 group downward and extends into the oil collecting tank 14. The sponge rubber sleeve is scraped and squeezed by two squeezing rollers 25 moving in opposite directions in the oil collecting tank 14, so that the oil film and oil foam are scraped into the lower tank body. At the same time, grease will also flow into the lower tank body from the channel between the upper tank body and the lower tank body.

[0057] In this embodiment, since the oil collecting tank 14 is divided into an upper tank body and a lower tank body connected to each other, when the motor configured in the extrusion structure drives the second screw 23 to rotate, the two slide brackets 24 on the second screw 23 are in a close state, and the extrusion rollers 25 on the two slide brackets 24 first perform the oil scraping operation (such as Figure 7 Then perform the grease extrusion operation (as shown in the middle state). Figure 6The oil scraping operation is to use a motor to drive the squeezing roller 25 to rotate, and the squeezing roller 25 scrapes off the oil film, oil foam, etc. adhered to the sponge rubber sleeve through the toothed scraping portion 252 to avoid the oil film and oil foam from adhering to the sponge rubber sleeve when they are directly squeezed, resulting in unclean cleaning; after the oil film and oil foam are scraped off, the servo motor drives the squeezing roller 25 to rotate so that the squeezing portion 251 of the squeezing roller 25 faces the sponge rubber sleeve. At this time, the second screw 23 continues to rotate to drive the two slide brackets 24 to squeeze toward one side of the sponge rubber sleeve, and the squeezing portion 251 is used to squeeze the grease and part of the water adsorbed in the sponge rubber sleeve, and the grease and water flow into the gap connected by the upper tank body and the lower tank body. At the same time, in order to avoid grease clogging the gap, the gap can be set wider, and a heating layer can be set on the inner wall of the gap. The heating layer can soften the grease, so that it is quickly introduced into the lower tank body in the form of liquid for collection.

[0058] The processing steps include the following:

[0059] 1) Wastewater is discharged into the degreasing tank 1 through the wastewater discharge pipe. Grease in the wastewater floats on the water surface of the degreasing tank 1 to form an oil layer. At this time, the three-axis moving component drives the degreasing component to move downward first, and then moves forward and backward or left and right to remove the oil surface of the wastewater. The three-axis moving component moves upward according to the set logic to enable the degreasing component to squeeze out and collect the grease;

[0060] 2) After the wastewater grease is removed, the valve connecting the degreasing tank 1 and the sedimentation tank 2 is opened. At this time, the wastewater enters the sedimentation tank 2 and is flocculated and precipitated by adding flocculants;

[0061] 3) After the sedimentation treatment is completed, the wastewater is pumped into the filter 3 by a lift pump and subjected to layer filtration. The filter 3 may be a membrane filter 3;

[0062] 4) The wastewater after being filtered by the filter 3 enters the deionizer 4 to remove heavy metal ion substances.

[0063] It is worth noting that the entire device is controlled by a general control system. Since the equipment matched with the control system is commonly used equipment and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for agricultural machinery manufacturing, characterized in that: include: A degreasing tank (1) is connected to the output side of the wastewater discharge pipe and is used to remove oil from the wastewater. The degreasing tank (1) is provided with a degreasing mechanism, wherein the degreasing mechanism comprises a three-axis moving component and a degreasing component. The three-axis moving component is mounted around the degreasing tank (1). The degreasing component is a roller-type oil suction and degreasing device. The three-axis moving component can drive the degreasing component to move along the oil surface of the degreasing tank (1) and absorb grease, oil film and oil layer. A sedimentation tank (2) connected to the output side of the degreasing tank (1) and used for pre-sedimentation and separation of wastewater; A filter (3) is arranged on the upper side of the sedimentation tank (2) and is connected to the output side of the sedimentation tank (2) through a lifting pump, and the lifting pump pumps the wastewater into the filter (3) for layer filtration; A deionizer (4) is arranged on one side of the filter (3) and is connected to the output side of the filter (3) for removing residual heavy metal ion substances in the wastewater.

2. The agricultural machinery manufacturing wastewater treatment device according to claim 1, characterized in that: The three-axis moving assembly comprises a first electric cylinder (5), a rail frame (6), a first screw rod (7), a screw seat (8), a mounting frame (9), and a moving support (10). The rail frame (6) is provided with two groups and is parallelly distributed on the upper side of the degreasing pool (1). The lower ends of the two groups of rail frames (6) are connected to the first electric cylinder (5). A first screw rod (7) is rotatably mounted inside each rail frame (6). The rear end of the first screw rod (7) is driven by a motor. A screw seat (8) is sleeved on the first screw rod (7). The mounting frame (9) is connected between the two screw seats (8). A track is integrally formed on the lower side of the mounting frame (9).

3. The agricultural machinery manufacturing wastewater treatment device according to claim 2, characterized in that: A tooth plate (11) is provided on one side of the track, and the movable support (10) can be slidably mounted on the track. A first gear device (12) is provided on the upper side of the movable support (10) and can mesh with the tooth plate (11) and enable the movable support (10) to move along the track.

4. The agricultural machinery manufacturing wastewater treatment device according to claim 1, characterized in that: The oil removal assembly is mounted on the lower side of the movable support (10) and can move forward and backward, left and right, and up and down with the three-axis movable assembly. The oil removal assembly comprises a shell (13), an oil suction roller (18), a second electric cylinder (16), and a slide (17). A downwardly convex oil collecting groove (14) is provided on one side of the end surface of the shell (13), and openings (15) are provided at intervals on the other side of the end surface of the shell (13). Slots are provided on the left and right sides of the shell (13), and a second electric cylinder (16) and a slide (17) are provided in each slot. The slide (17) can be slidably connected to the inner wall of the slot, and the shaft end of the second electric cylinder (16) is connected to the slide (17).

5. The agricultural machinery manufacturing wastewater treatment device according to claim 4, characterized in that: The number and position of the oil suction rollers (18) correspond to the openings (15) provided on the end surface of the housing (13). The oil suction rollers (18) include a sponge rubber sleeve and a roller rod passing through the inner side of the sponge rubber sleeve, wherein the two ends of the roller rod are rotatably connected to a slide frame (17) in the slot through bearings, and a third electric cylinder (19) is installed on the bearing close to the oil collecting tank (14). The shaft end of the third electric cylinder (19) is connected to one side of the sponge rubber sleeve. The third electric cylinder (19) can drive the sponge rubber sleeve to move from the opening (15) to the oil collecting tank (14).

6. The agricultural machinery manufacturing wastewater treatment device according to claim 5, characterized in that: A driving device is installed on the side of the oil suction roller (18) away from the third electric cylinder (19), and the driving device is used to drive the oil suction roller (18) to swing so as to make it scrape oil. The driving device comprises a swing arm (20) and a second gear device (21), wherein the lower end of the swing arm (20) is integrally formed with roller sleeves corresponding to the number of roller rods, and the roller sleeves can be sleeved on the roller rods, and the upper end of the swing arm (20) is integrally formed with a rack (22), and the second gear device (21) can mesh with the rack (22) and enable the swing arm (20) to drive the plurality of groups of oil suction rollers (18) to rotate.

7. The agricultural machinery manufacturing wastewater treatment device according to claim 4, characterized in that: The oil collecting tank (14) comprises an upper tank body and a lower tank body, wherein the lower tank body is an oil collecting bin with a cavity, the lower tank body is connected to the upper tank body, and the front and rear ends of the inner side of the upper tank body are provided with extrusion structures for extruding the oil suction roller (18).

8. The agricultural machinery manufacturing wastewater treatment device according to claim 7, characterized in that: The extrusion structure comprises a second screw (23), a slide bracket (24) and an extrusion roller (25), wherein one side of the shaft end of the second screw (23) is driven by a motor, the second screw (23) is provided with two thread segments with opposite thread directions, the slide bracket (24) is provided with two groups and is respectively mounted on the two thread segments, and the extrusion roller (25) is installed on the slide bracket (24) at the front and rear ends of the inner side of the upper tank body.

9. The agricultural machinery manufacturing wastewater treatment device according to claim 8, characterized in that: A servo motor for driving the squeezing roller (25) to rotate is installed on one side of the slide bracket (24). The squeezing roller (25) has an integrally formed squeezing portion (251) and an oil scraping portion (252), wherein the oil scraping portion (252) is a toothed structure and the squeezing portion (251) is a plate-like structure. When the second screw (23) rotates, the two squeezing rollers (25) can approach each other and use the oil scraping portion (252) to scrape off the oil foam and oil film on the outer side of the oil suction roller (18), and use the squeezing portion (251) to squeeze out the grease adsorbed by the oil suction roller (18).

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