Plastic cleaning line circulating water treatment device

Abstract

The utility model discloses a circulating water treatment device for a plastic cleaning line, which comprises a treatment pond internally provided with a water inlet area, a separation area, a floating material collection area and a water outlet area; a plurality of mud buckets are arranged at the bottom of the treatment tank; a water inlet communicated with the water inlet area is formed in the side wall of the upper part of the water inlet area; the water inlet is communicated with an outlet of the pipeline type mixer; the bottom of the water inlet area is communicated with the bottom of the separation area; the top of the separation area is communicated with the top of the floating material collection area, and a slag scraping device capable of scraping floating materials floating on the water surface of the separation area into the floating material collection area is arranged on the treatment pond; a plurality of water collecting pipes communicated with the upper area of the separation area and the water outlet area are arranged on the side wall of the water outlet area; a water outlet communicated with the water outlet area is formed in the side wall of the water outlet area. The device has the advantages of compact structure, small occupied space, high separation efficiency and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of waste plastics recycling, especially to a plastic cleaning line circulating water treatment device. BACKGROUND

[0002] With the increasing consumption of plastic products, waste plastics are also increasing. If these waste plastics are not properly treated, they will inevitably damage the environment and harm human health.

[0003] The current waste plastic treatment methods mainly include sanitary landfill, incineration treatment and waste plastic recycling. Mechanical and physical recycling is the most common method of waste plastic recycling. Through processes such as crushing and cleaning, the waste plastics are reprocessed and utilized. This method is suitable for most plastics and is the most common harmless treatment method at present.

[0004] In the plastic cleaning line, the wastewater discharged after cleaning the crushed plastic pieces contains sand, crushed pieces and other impurities. If the wastewater is directly discharged into nature, it will not only cause a large amount of water resource consumption and increase the cost, but also produce a large amount of sewage and pollute the environment. Therefore, it is urgent to design a plastic cleaning line circulating water treatment device that can treat wastewater and recycle it. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a plastic cleaning line circulating water treatment device that is compact in structure, small in space occupation and high in separation efficiency.

[0006] In view of the problem of serious water resource waste and environmental unfriendliness caused by directly discharging wastewater in the plastic cleaning line, the utility model designs a plastic cleaning line circulating water treatment device that can treat wastewater and recycle it, so as to improve the utilization rate of water resources, reduce the cost and avoid environmental pollution.

[0007] The technical solution of the utility model is: the plastic cleaning line circulating water treatment device comprises a treatment pool, the treatment pool has a water inlet area, a separation area, a floating material collection area and a water outlet area inside, the bottom of the treatment pool is provided with a plurality of hopper buckets, a water inlet is arranged on the side wall of the upper part of the water inlet area and communicates with the water inlet area, the water inlet communicates with the outlet of the pipeline type mixer, the bottom of the water inlet area communicates with the bottom of the separation area, the top of the separation area communicates with the top of the floating material collection area, a slag scraping device that can scrape the floating material floating on the water surface of the separation area into the floating material collection area is arranged on the treatment pool, a plurality of water collecting pipes that communicate with the upper part of the separation area and the water outlet area are arranged on the side wall of the water outlet area, and a water outlet is arranged on the side wall of the water outlet area and communicates with the water outlet area.

[0008] In order to further improve the separation efficiency and optimize the treatment effect, a middle layer inclined pipe bundle distribution layer covered by a plurality of inclined inclined pipes is arranged in the middle layer area of the separation area, the inclined pipes are parallel to each other, and the water collector is located above the middle layer inclined pipe bundle distribution layer.

[0009] Further, the plastic cleaning line circulating water treatment device, wherein the inclination angle α of the inclined pipe is 60°±5°, and the most preferred inclination angle α of the inclined pipe is 60°.

[0010] The pipeline mixer has various structures. In the present application, considering the overall layout, the mixing requirements of chemical agents and wastewater, and other factors, a pipeline mixer with a serpentine pipe structure is selected. The opening of the lowermost pipe of the serpentine pipe structure is the inlet of the pipeline mixer, and wastewater enters the pipeline mixer from the inlet. At least one connecting pipe is arranged on the pipe wall of the lowermost pipe of the serpentine pipe structure, and chemical agents are injected from the connecting pipe. The opening of the uppermost pipe of the serpentine pipe structure is the outlet of the pipeline mixer, and wastewater fully mixed with chemical agents is output from the outlet.

[0011] Further, the plastic cleaning line circulating water treatment device, wherein the water inlet area, the separation area, the floating material collection area, and the water outlet area are sequentially distributed along the long side direction of the treatment tank; and the pipeline mixer is located on one side of the long side of the treatment tank. In this way, the overall treatment tank is compact and occupies less space.

[0012] During the use of the device, different batches of wastewater and wastewater used for cleaning different types of waste plastics differ. Some wastewater has less floating material, and some wastewater has more floating material. Different adjustments can be made by adjusting the water level of the separation area according to different situations. For example, for wastewater with less floating material, the water level of the separation area can be adjusted to be lower, and the slag scraping device can be temporarily disabled to save energy. In view of the above, the present application provides a water level adjusting mechanism for adjusting the water level of the separation area in the water outlet area. The water outlet area is isolated into a first water outlet area and a second water outlet area. Each water collector is in communication with the first water outlet area, and the water outlet is in communication with the second water outlet area.

[0013] The water level adjusting mechanism has the following structure: a groove is formed downward on the top surface of the isolation side plate between the first water outlet area and the second water outlet area. Two clamping plates are arranged on the same side of the isolation side plate. The two clamping plates are arranged on the two sides of the groove. The water level adjusting plate is clamped in the gap between the two clamping plates and the isolation side plate. The groove area above the water level adjusting plate forms a communication port between the first water outlet area and the second water outlet area. A displacement adjusting mechanism is arranged on the treatment tank to adjust the up-down movement of the water level adjusting plate in the gap between the two clamping plates and the isolation side plate. The height of the water level adjusting plate is adjusted by the displacement adjusting mechanism to adjust the water level height of the first water outlet area overflowing the water level adjusting plate.

[0014] The displacement adjusting mechanism is characterized in that a cross beam is arranged on the treatment tank, a nut is arranged on the cross beam, the nut can only rotate and cannot be detached after being arranged on the cross beam, a connecting rod is fixedly connected to the water level adjusting plate, and an external thread section is arranged on the connecting rod and rotates in the nut.

[0015] In order to facilitate the operation of the person, the hand wheel is fixedly arranged above the nut outside the cross beam.

[0016] The beneficial effects of the utility model are as follows: ① the pipeline type mixer can fully mix the wastewater entering from the inlet of the pipeline type mixer and the chemical reagent entering from each connecting pipe, so as to improve the impurity separation efficiency; ② the setting of the middle layer inclined pipe bundle distribution layer can make the sediment brought into the inclined pipe deposit on the surface of the inclined pipe when the wastewater flows through the inclined pipe, then slide to the bottom of the tank by gravity, and finally be discharged through the hopper, and can increase the separation path length of each inclined pipe, so as to improve the impurity separation efficiency; ③ the setting of the water level adjusting mechanism is used for adjusting the water level of the separation zone to meet the different working condition requirements: when the floating material in the separation zone is less, the water level of the separation zone can be adjusted to be low, and the slag scraping device can be temporarily closed to save energy consumption; when the floating material in the separation zone is more, the water level of the separation zone can be adjusted to be high, so that the slag scraping device can better scrape the floating material into the floating material separation zone, and the slag scraping efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a plastic cleaning line circulating water treatment device.

[0018] Figure 2 is a first embodiment of the internal structure schematic view of the plastic cleaning line circulating water treatment device.

[0019] Figure 3 is Figure 2 is a structural schematic view in the direction of view.

[0020] Figure 4 is a second embodiment of the internal structure schematic view of the plastic cleaning line circulating water treatment device.

[0021] Figure 5 is Figure 4 is a local enlarged structure schematic view of part A.

[0022] Figure 6 is a third embodiment of the internal structure schematic view of the plastic cleaning line circulating water treatment device.

[0023] Figure 7 is Figure 6A local enlarged structural schematic view of the water outlet area.

[0024] Figure 8 A Figure 6 A structural schematic view in the top direction.

[0025] Figure 9 A Figure 8 A local enlarged structural schematic view of the water outlet area.

[0026] Figure 10 A local structural schematic view of the water outlet area.

[0027] Figure 11 A local structural schematic view of the water outlet area in another observation direction.

[0028] Wherein:

[0029] 1, treatment pool; 2, partition plate; 3, water inlet area; 31, water inlet; 4, separation area; 41, inclined pipe; 5, floating material collecting area; 6, water outlet area; 61, water outlet; 62, first water outlet area; 63, second water outlet area; 7, hopper; 71, impurity discharge port; 8, pipeline mixer; 81, lowermost pipeline; 811, inlet; 812, connecting pipe; 82, uppermost pipeline; 821, outlet; 9, slag scraping device; 91, driving motor; 92, driving shaft; 93, chain wheel; 94, chain; 95, scraper; 10, water collecting pipe; 20, clamping plate; 30, water level adjusting plate; 40, cross beam; 50, connecting rod; 60, hand wheel. DETAILED DESCRIPTION

[0030] The technical scheme of the present application will be described in further detail below in combination with the drawings and preferred embodiments.

[0031] In the following, example embodiments will be described more fully with reference to the accompanying drawings, in which example embodiments can be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, the purpose of the embodiments is to explain the present disclosure fully and to provide those skilled in the art with a full understanding of the scope of the present disclosure. In the event of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other. Embodiment one

[0032] The plastic cleaning line circulating water treatment device described in the embodiment, as shown in Figure 1 and Figure 2 , comprises a treatment pool 1, which is divided into a water inlet area 3, a separation area 4, a floating material collecting area 5 and a water outlet area 6 by a plurality of partition plates 2. Preferably, the water inlet area 3, the separation area 4, the floating material collecting area 5 and the water outlet area 6 are sequentially distributed along the long direction of the treatment pool 1.

[0033] The bottom of the treatment tank 1 is provided with several hoppers 7, and each hopper 7 is provided with a waste discharge port 71 which is normally closed during the treatment process and is opened when waste needs to be discharged. Preferably, the hoppers 7 are arranged in sequence along the long side of the treatment tank 1.

[0034] As shown in Figure 1 , Figure 2 and Figure 3 , a water inlet 31 is provided on the side wall of the upper part of the water inlet area 3 and is in communication with the water inlet area 3. The water inlet 31 is in communication with the outlet 821 of the pipeline mixer 8.

[0035] More preferably, the pipeline mixer 8 is in the form of a serpentine pipe structure, the opening of the lowermost pipe 81 of the serpentine pipe structure is the inlet 811 of the pipeline mixer 8, and at least one connecting pipe 812 is provided on the wall of the lowermost pipe 81 of the serpentine pipe structure; the opening of the uppermost pipe 82 of the serpentine pipe structure is the outlet 821 of the pipeline mixer 8. The pipeline mixer 8 in this structure can mix the wastewater entering from the inlet 811 of the pipeline mixer 8 with the chemical agent entering from each connecting pipe 812, so as to improve the efficiency of impurity separation.

[0036] The bottom of the water inlet area 3 and the bottom of the separation area 4 are connected by a connecting port, and the water inlet area 3 is in communication with the separation area 4 through the connecting port.

[0037] The top of the separation area 4 is in communication with the top of the floating material collection area 5, and a slag scraping device 9 is provided on the treatment tank 1 to scrape the floating material floating on the water surface of the separation area 4 into the floating material collection area 5.

[0038] As shown in Figure 1 , Figure 2 and Figure 3 , the slag scraping device 9 in this embodiment comprises a driving motor 91 provided on the treatment tank 1, two driving shafts 92 supported on the treatment tank 1 by corresponding bearing sets, and a plurality of scrapers 95. The motor shaft of the driving motor 91 is fixedly connected with any one of the driving shafts 92, or the motor shaft of the driving motor 91 drives any one of the driving shafts 92 to rotate through belt transmission or chain transmission. A sprocket 93 is fixedly arranged at each end of each driving shaft 92, and a chain 94 is wound around the two sprockets 93 on the same side. The two ends of each scraper 95 are fixedly arranged on the chain 94 on the corresponding side. When the driving motor 91 drives the chain transmission to move, each scraper 95 is driven by the chain transmission to move from the separation area 4 to the floating material collection area 5, so as to scrape the floating material floating on the water surface of the separation area 4 into the floating material collection area 5.

[0039] The side wall of the water outlet area 6 is provided with several water collecting pipes 10 which communicate with the upper area of the separation area 4 and the water outlet area 6. During use, each water collecting pipe 10 is submerged in water, and the water in the separation area 4 enters the water outlet area 6 through each water collecting pipe 10. The water outlet 61 is provided on the side wall of the water outlet area 6 and communicates with the water outlet area 6.

[0040] The working principle of the plastic cleaning line circulating water treatment device is as follows: the wastewater to be treated enters from the inlet 811 of the pipe mixer 8, the chemical agent enters from the connecting pipe 812 of the pipe mixer 8, and after being fully mixed in the pipe mixer 8, the wastewater enters the water inlet area 3 from the water inlet 31. The wastewater in the water inlet area 3 enters the separation area 4 through the connecting port between the bottom of the water inlet area 3 and the bottom of the separation area 4. After the floating material floats on the water surface, it is scraped into the floating material collection area 5 by the slag scraping device 9. The water in the separation area 4 enters the water outlet area 6 through the water collecting pipes 10, and then is discharged from the water outlet 61 of the treatment tank 1. The precipitated sediment falls into the respective hoppers 7 when the wastewater is in the water inlet area 3 and the separation area 4. Example Two

[0041] The plastic cleaning line circulating water treatment device in this embodiment, as shown in Figure 1 and Figure 4 , comprises a treatment tank 1 which is divided into a water inlet area 3, a separation area 4, a floating material collection area 5 and a water outlet area 6 by a plurality of partition plates 2. The preferred distribution mode of the water inlet area 3, the separation area 4, the floating material collection area 5 and the water outlet area 6 is to be sequentially distributed along the long side direction of the treatment tank 1.

[0042] The bottom of the treatment tank 1 is provided with a plurality of hoppers 7, and each hopper 7 is provided with a waste discharge port 71 which is usually closed during the treatment process and is opened when the waste needs to be discharged. The preferred distribution mode of the hoppers 7 is to be sequentially arranged along the long side direction of the treatment tank 1.

[0043] As shown in Figure 1 and Figure 4 , the side wall of the upper part of the water inlet area 3 is provided with a water inlet 31 which communicates with the water inlet area 3, and the water inlet 31 communicates with the outlet 821 of the pipe mixer 8.

[0044] More preferably, the pipe mixer 8 is a serpentine pipe structure, the opening of the lowermost pipe 81 of the serpentine pipe structure is the inlet 811 of the pipe mixer 8, and at least one pipe 812 is arranged on the wall of the lowermost pipe 81 of the serpentine pipe structure; the opening of the uppermost pipe 82 of the serpentine pipe structure is the outlet 821 of the pipe mixer 8. The pipe mixer 8 with such structure can mix the wastewater entering the inlet 811 of the pipe mixer 8 with the chemical agent entering the pipe 812, so as to improve the impurity separation efficiency.

[0045] The bottom of the water inlet area 3 and the bottom of the separation area 4 are connected by a connecting port, and the water inlet area 3 is communicated with the separation area 4 through the connecting port.

[0046] As shown in Figure 4 and Figure 5 The middle layer area of the separation area 4 is covered by a plurality of inclined pipes 41 arranged obliquely, forming a middle layer inclined pipe bundle distribution layer, and the pipes 41 are parallel to each other; the water collecting pipes 10 are located above the middle layer inclined pipe bundle distribution layer. The inclination angle α of the inclined pipes is 60°±5°, and the inclination angle α is most preferably 60°.

[0047] The top of the separation area 4 is communicated with the top of the floating material collecting area 5, and a slag scraping device 9 is arranged on the treatment tank 1, which can scrape the floating material floating on the water surface of the separation area 4 into the floating material collecting area 5.

[0048] The side wall of the water outlet area 6 is provided with a plurality of water collecting pipes 10 which are communicated with the upper area of the separation area 4 and the water outlet area 6; and a water outlet 61 is arranged on the side wall of the water outlet area 6 and communicated with the water outlet area 6.

[0049] The working principle of the above-mentioned plastic cleaning line circulating water treatment device is as follows: the wastewater to be treated enters the inlet 811 of the pipe mixer 8, the chemical agent enters the pipe 812 of the pipe mixer 8, and after being fully mixed in the pipe mixer 8, it enters the water inlet area 3 through the water inlet 31. A part of the sediment in the wastewater in the water inlet area 3 sinks to the corresponding hopper 7 at the bottom. The wastewater in the water inlet area 3 enters the separation area 4 through the connecting port between the bottom of the water inlet area 3 and the bottom of the separation area 4, and a part of the sediment in the wastewater in the separation area 4 also sinks to the corresponding hopper 7 at the bottom; another part of the sediment is brought into each inclined pipe 41 by the wastewater, and the sediment in the wastewater 41 deposits on the surface of the inclined pipe and then slides to the bottom of the tank by gravity, and finally enters the corresponding hopper 7; the floating material in the wastewater 41 floats upwards on the water surface of the separation area 4 after passing through the inclined pipe 41, and then is scraped into the floating material collecting area 5 by the slag scraping device 9. The water in the separation area 4 enters the water outlet area 6 through the water collecting pipes 10, and then is discharged out of the treatment tank 1 through the water outlet 61.

[0050] The middle layer of inclined tube bundle distribution layer is arranged to make the sludge brought into the inclined tube 41 deposited on the surface of the inclined tube, and then slide to the bottom of the pool by gravity, and finally discharged through the hopper 7. The inclined tube 41 can increase the length of the separation path, thereby improving the separation efficiency of impurities, and the separation effect is better than that of the first embodiment. Embodiment three

[0051] The plastic cleaning line circulating water treatment device described in the embodiment, as shown in Figure 1 and Figure 6 , comprises a treatment pool 1, which is divided into a water inlet area 3, a separation area 4, a floating material collection area 5 and a water outlet area 6 by a plurality of partition plates 2. The distribution mode of the water inlet area 3, the separation area 4, the floating material collection area 5 and the water outlet area 6 is preferably sequentially distributed along the long side direction of the treatment pool 1.

[0052] The bottom of the treatment pool 1 is provided with a plurality of hoppers 7, and each hopper 7 is provided with an impurity discharge port 71. The impurity discharge port 71 is usually closed during the treatment process, and is opened when the impurities need to be discharged. The distribution mode of each hopper 7 is preferably sequentially arranged along the long side direction of the treatment pool 1.

[0053] As shown in Figure 1 , Figure 6 and Figure 8 , a water inlet 31 communicating with the water inlet area 3 is arranged on the sidewall of the upper part of the water inlet area 3, and the water inlet 31 communicates with the outlet 821 of the pipeline mixer 8.

[0054] A more preferred scheme in the embodiment is that the pipeline mixer 8 is a serpentine pipe structure, the opening of the lowermost pipe 81 of the serpentine pipe structure is the inlet 811 of the pipeline mixer 8, and at least one connecting pipe 812 is further arranged on the pipe wall of the lowermost pipe 81 of the serpentine pipe structure; the opening of the uppermost pipe 82 of the serpentine pipe structure is the outlet 821 of the pipeline mixer 8. The pipeline mixer 8 with the structure can make the wastewater entering from the inlet 811 of the pipeline mixer 8 and the chemical reagent entering from each connecting pipe 812 fully mixed, so as to improve the separation efficiency of impurities.

[0055] The bottom of the water inlet area 3 and the bottom of the separation area 4 have a connecting port, and the water inlet area 3 communicates with the separation area 4 through the connecting port.

[0056] The top of the separation area 4 and the top of the floating material collection area 5 communicate, and a slag scraping device 9 capable of scraping the floating material floating on the water surface of the separation area 4 into the floating material collection area 5 is arranged on the treatment pool 1.

[0057] The side wall of the water outlet zone 6 is provided with several water collection pipes 10 that connect the upper area of ​​the separation zone 4 and the water outlet zone 6; the side wall of the water outlet zone 6 is provided with a water outlet 61 that communicates with the water outlet zone 6.

[0058] like Figure 6 As shown, the middle layer of the separation zone 4 is covered by several inclined tubes 41, forming a middle layer of inclined tube bundle distribution layer, and the inclined tubes 41 are parallel to each other.

[0059] The top of the separation zone 4 is connected to the top of the floating material collection zone 5. A scraping device 9 is provided on the treatment tank 1 to scrape the floating material floating on the water surface of the separation zone 4 into the floating material collection zone 5.

[0060] The side wall of the water outlet zone 6 is provided with several water collection pipes 10 that connect the upper area of ​​the separation zone 4 and the water outlet zone 6; the side wall of the water outlet zone 6 is provided with a water outlet 61 that communicates with the water outlet zone 6.

[0061] The working principle of the above-mentioned plastic washing line circulating water treatment device is as follows: the wastewater to be treated enters from the inlet 811 of the pipe mixer 8, and the chemical agent enters from the connector 812 of the pipe mixer 8. After being fully mixed by the pipe mixer 8, the wastewater enters the inlet zone 3 from the inlet 31. In the wastewater in the inlet zone 3, some sediment will sink to the corresponding sludge hopper 7 at the bottom. The wastewater entering the inlet zone 3 enters the separation zone 4 through the connection between the bottom of the inlet zone 3 and the bottom of the separation zone 4. In the wastewater in the separation zone 4, some sediment will also sink to the corresponding sludge hopper 7 at the bottom; some sediment will be carried by the wastewater into each inclined tube 41. The sediment in the wastewater 41 will settle on the surface of the inclined tube and then slide down to the bottom of the pool by gravity, and finally enter the corresponding sludge hopper 7; the floating material in the wastewater 41 will float upward to the water surface of the separation zone 4 after passing through the inclined tube 41, and then be scraped into the floating material collection zone 5 by the sludge scraper 9. The water in the separation zone 4 enters the outlet zone 6 through each water collection pipe 10, and then is discharged out of the treatment tank 1 through the outlet 61.

[0062] The middle layer of inclined tube bundle distribution layer has two purposes: first, when wastewater flows through inclined tube 41, the sediment carried into the inclined tube 41 is deposited on the surface of the inclined tube, and then slides down to the bottom of the pool by gravity, and is finally discharged through sludge hopper 7; second, each inclined tube 41 can increase the separation path length, thereby improving the impurity separation efficiency.

[0063] In this embodiment, as Figure 7 , Figure 9 , Figure 10 and Figure 11 As shown, a water level regulating mechanism for regulating the water level in the separation zone 4 is provided in the water outlet zone 6.

[0064] The water outlet area 6 is divided into a first water outlet area 62 and a second water outlet area 63 by a plurality of partition plates, each water collecting pipe 10 is communicated with the first water outlet area 62, and the water outlet 61 is communicated with the second water outlet area 63.

[0065] As shown in Figure 7 , Figure 9 , Figure 10 and Figure 11 , the water level adjusting mechanism is structured as follows: a groove 641 is formed downward on the top surface of the isolation side plate 64 between the first water outlet area 62 and the second water outlet area 63, two clamping plates 20 are arranged on the same side of the isolation side plate 64, and the clamping plates 20 are arranged on the isolation side plate 64 by means of a plurality of bolts. The two clamping plates 20 are arranged on the two sides of the groove 641, and a gap for clamping the water level adjusting plate 30 is left between each clamping plate 20 and the isolation side plate 64. The two ends of the water level adjusting plate 30 are clamped into the gap between the two clamping plates 20 and the isolation side plate 64. At this time, the water level adjusting plate 30 blocks part of the groove 641, so that the groove area above the water level adjusting plate 30 forms a communication port between the first water outlet area 62 and the second water outlet area 63. Only when the water level of the first water outlet area 62 exceeds the top surface of the water level adjusting plate 30, the water in the second water outlet area 62 can overflow the top surface of the water level adjusting plate 30 and enter the second water outlet area 63. A displacement adjusting mechanism is arranged on the treatment tank 1 to adjust the up-and-down movement of the water level adjusting plate 20 in the gap between the two clamping plates 20 and the isolation side plate 64. By adjusting the height of the water level adjusting plate 30, the height of the water overflowing from the second water outlet area 62 into the second water outlet area 63 is achieved, that is, the water level in the second water outlet area 62 is adjusted. The water level in the second water outlet area 62 is closely related to the water level in the separation area 4. When the water level in the second water outlet area 62 decreases, the water level in the separation area 4 also decreases. When the water level in the second water outlet area 62 increases, the water level in the separation area 4 also increases.

[0066] As shown in Figure 7 , the displacement adjusting mechanism in this embodiment is that a cross beam 40 is installed on the treatment tank 1, a nut is clamped on the cross beam 40, the nut can only rotate and cannot fall off after being clamped on the cross beam 40, a connecting rod 50 is fixedly connected to the water level adjusting plate 30 at the lower end, an external thread section is arranged on the connecting rod 50, and the external thread section is screwed into the nut. More preferably, a hand wheel 60 is fixedly arranged above the nut extending out of the cross beam 40 to facilitate the rotation of the nut by a person.

[0067] When the water level in the separation zone 4 needs to be adjusted, the water level in the separation zone 4 is raised to a certain set height, the nut is rotated, the connecting rod 50 is moved upward, the water level adjusting plate 30 is pulled to move upward to the required position, at this time, the lower end of the communication port connecting the first water outlet zone 62 and the second water outlet zone 63 is also raised accordingly, and thus the water level in the second water outlet zone 63 is also raised. Conversely, when the water level in the separation zone 4 needs to be adjusted, the water level in the separation zone 4 is lowered to a certain set height, the nut is rotated in the opposite direction, the connecting rod 50 is moved downward, the water level adjusting plate 30 is pushed to move downward to the required position, at this time, the lower end of the communication port connecting the first water outlet zone 62 and the second water outlet zone 63 is also lowered accordingly, and thus the water level in the second water outlet zone 63 is also lowered.

[0068] The water level adjusting mechanism is arranged to adjust the water level in the separation zone 4 to meet different working conditions: when there is less floating material in the separation zone 4, the water level in the separation zone 4 can be adjusted to be lower, and the slag scraping device 9 is temporarily closed to save energy; when there is more floating material in the separation zone 4, the water level in the separation zone 4 can be adjusted to be higher, so that the slag scraping device 9 can better scrape the floating material into the floating material separation zone 5, and the floating material separation efficiency is improved. Compared with the second embodiment, the separation effect is better.

[0069] The above only describes the preferred embodiments of the present application, and does not limit the present application in any other form, and any modification or equivalent change made according to the technical essence of the present application still belongs to the scope of protection required by the present application.

Claims

1. A plastic cleaning line recirculating water treatment apparatus comprising: The treatment tank is characterized in that: the treatment tank has a water inlet area, a separation area, a floating material collecting area and a water outlet area; a plurality of hoppers are arranged on the bottom of the treatment tank; A water inlet is arranged on the side wall of the upper part of the water inlet area and communicates with the water inlet area, and the water inlet communicates with the outlet of the pipeline mixer; The bottom of the water inlet area communicates with the bottom of the separation area; The top of the separation area communicates with the top of the floating material collecting area, and a slag scraping device is arranged on the treatment tank to scrape the floating material floating on the water surface of the separation area into the floating material collecting area; A plurality of water collecting pipes are arranged on the side wall of the water outlet area and communicate with the upper area of the separation area and the water outlet area; and a water outlet is arranged on the side wall of the water outlet area and communicates with the water outlet area.

2. The plastic cleaning line circulating water treatment device according to claim 1, characterized in that: The middle layer area of the separation area is covered by a plurality of inclined pipes arranged obliquely to form a middle layer inclined pipe bundle distribution layer, and the pipes are parallel to each other; and the water collecting pipes are located above the middle layer inclined pipe bundle distribution layer.

3. The plastic cleaning line circulating water treatment device according to claim 2, characterized in that: The inclination angle α of the inclined pipe is 60°±5°.

4. The plastic cleaning line circulating water treatment device according to claim 1 or 2 or 3, characterized in that: The pipeline mixer is a serpentine pipe structure, the opening of the lowermost section of the pipe of the serpentine pipe structure is the inlet of the pipeline mixer, and at least one connecting pipe is arranged on the pipe wall of the lowermost section of the pipe of the serpentine pipe structure; and the opening of the uppermost section of the pipe of the serpentine pipe structure is the outlet of the pipeline mixer.

5. The plastic cleaning line circulating water treatment device according to claim 4, characterized in that: The water inlet area, the separation area, the floating material collecting area and the water outlet area are sequentially distributed along the long side direction of the treatment tank; and the pipeline mixer is located on one side of the long side of the treatment tank.

6. The plastic cleaning line circulating water treatment device according to claim 1 or 2 or 3, characterized in that: A water level adjusting mechanism is arranged in the water outlet area to adjust the water level of the separation area; The water outlet area is isolated into a first water outlet area and a second water outlet area, each water collecting pipe communicates with the first water outlet area, and the water outlet communicates with the second water outlet area; The structure of the water level adjusting mechanism is that: a groove is formed downward on the top surface of the isolation side plate between the first water outlet area and the second water outlet area, two clamping plates are arranged on the same side of the isolation side plate, the two clamping plates are arranged on the two sides of the groove, a water level adjusting plate is clamped in the gap between the two clamping plates and the isolation side plate, so that the groove area above the water level adjusting plate forms a communication port of the first water outlet area and the second water outlet area; and a displacement adjusting mechanism is arranged on the treatment tank to adjust the up-down movement of the water level adjusting plate in the gap between the two clamping plates and the isolation side plate.

7. A plastic cleaning line circulating water treatment device according to claim 6, characterized in that: The displacement adjusting mechanism is that: a cross beam is installed on the treatment tank, a nut is clamped on the cross beam, the nut can only rotate and cannot fall off after being clamped on the cross beam, a connecting rod is fixedly connected to the water level adjusting plate at the lower end, an external thread section is arranged on the connecting rod, and the external thread section is screwed into the nut.

8. The plastic cleaning line circulating water treatment device according to claim 7, characterized in that: A hand wheel is fixedly arranged above the nut extending out of the cross beam.

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