Water treatment system for plastic production

Abstract

The utility model relates to the field of water treatment equipment, and provides a plastic production water treatment system which comprises a water treatment tank, a water inlet pipe, a circulating pipe and a circulating pump, a plurality of filtering pieces are arranged in the water treatment tank in the vertical direction; the water inlet pipe is communicated with the top of the water treatment tank; the circulating pipe is communicated with the bottom of the water treatment tank, and the circulating pump is connected with the circulating pipe and connected into external plastic production equipment. The water circulation device has the effects of filtering impurities in water and stabilizing water circulation.

Description

Technical Field

[0001] The present application relates to the field of water treatment equipment, and in particular to a water treatment system for plastic production. Background Art

[0002] During the plastic granulation process, water is needed for cooling or auxiliary work, especially when used in the production of food-grade plastic products. These cooling waters will be recovered and recycled after use. However, these cooling waters come into contact with equipment or raw materials during cooling or other granulation processes, causing some raw materials or waste to flow with the water, affecting the next water cycle. Summary of the invention

[0003] In order to improve the above problems, the present application provides a plastic production water treatment system.

[0004] The present application provides a plastic production water treatment system that adopts the following technical solutions:

[0005] A plastic production water treatment system comprises a water treatment tank, a water inlet pipe, a circulation pipe and a circulation pump; a plurality of filters are arranged in the water treatment tank along the vertical direction; the water inlet pipe is connected to the top of the water treatment tank; the circulation pipe is connected to the bottom of the water treatment tank, and the circulation pump is connected to the circulation pipe and connected to external plastic production equipment.

[0006] By adopting the above technical scheme, the cooling water at the end of the circulation is transported from the top of the water treatment tank through the water inlet pipe, and the cooling water passes through several layers of filters by utilizing the height difference principle. The cooling water passes through the filters layer by layer, so that the debris mixed in the previous round of water circulation is intercepted and filtered by the filters layer by layer, so that the cooling water falls to the bottom of the water treatment tank and can continue to perform a new round of water circulation through the circulation pipe and the circulation pump.

[0007] Optionally, the plurality of filter elements include a first filter structure and a second filter structure; the water treatment tank is divided into two layers, the first filter structure is installed on the first layer, and the second filter structure is installed on the second layer; the first filter structure and the second filter structure are separated by a preset distance.

[0008] By adopting the above technical solution, the first filter structure and the second filter structure perform layered filtration to avoid the situation where debris clogs the filter element. The preset distance between the first filter structure and the second filter structure allows a height difference to exist. The height difference is used to reduce water tension, speed up the flow of water and the efficiency of filtration.

[0009] Optionally, the first filter structure includes a mounting portion, a buffer portion and a first filter portion; the mounting portion is connected to the inner wall of the water treatment tank; the buffer portion and the first filter portion are sequentially mounted on the mounting portion along a vertical direction.

[0010] By adopting the above technical solution, the first filter structure is installed as a whole on the first layer of the water treatment tank through the installation part, and a buffer part is provided on the side close to the water inlet pipe. When the cooling water is flushed, it will first contact the buffer part, and the buffer part is used to buffer the cooling water, so that the water pressure is reduced and the water flow is dispersed, and then the first filtration is performed through the first filter part to extend the service life.

[0011] Optionally, a limiting groove is provided on the first layer of the water treatment box, and a connecting protrusion is provided on the mounting portion, and is slidably connected to the limiting groove through the connecting protrusion.

[0012] By adopting the above technical solution, the connecting protrusion is used to make the mounting part slide through the limiting groove and the first inner wall of the water treatment box, and it is detachable, so that the debris initially filtered out in the first filtering structure can be easily removed, avoiding long-term accumulation and resulting in reduced filtering effect.

[0013] Optionally, the second filter structure includes a driving unit, a turntable, and a second filter unit; the driving unit is installed on the second inner wall of the water treatment tank; the turntable is connected to the driving end of the driving unit and blocks the water flow; the second filter unit is installed along the edge of the turntable surface.

[0014] By adopting the above technical solution, the turntable is driven by the driving part to rotate, and the cooling water is affected by the centrifugal force of the turntable and passes through the second filter part. The debris cannot escape from the second filter part and remains in the turntable, thereby reducing the influence of water tension on the filtration process, and at the same time speeding up the water flow and ensuring a stable filtration effect.

[0015] Optionally, an inner groove is provided at the center of the turntable.

[0016] By adopting the above technical solution, the inner groove can be used to conveniently collect debris and control the flow path of cooling water affected by centrifugal force, thereby preventing the cooling water from being affected by centrifugal force and directly leaving the turntable without passing through the second filter part.

[0017] Optionally, a guide member is obliquely provided on the inner wall of the water treatment tank of the second layer, and the second filtering structure is located in the middle of the guide member, and the height of the end of the guide member is lower than that of the turntable.

[0018] By adopting the above technical solution, the main function of the flow piece is to receive the cooling water splashed downward by the centrifugal force and guide it downward uniformly to avoid excessive dispersion of the cooling water and affect collection. At the same time, the height of the end of the guide piece is lower than the height of the turntable, so that the water flows along the guide piece after splashing, and will not splash onto the driving part and affect the normal operation of the driving part.

[0019] Optionally, the flow guide is provided with a detachable third filter portion close to the turntable.

[0020] By adopting the above technical solution, the third filter part performs a third filtration, and the main purpose of the third filtration is to fill in the gaps of missed debris, further reducing the situation where the debris is missed and not completely filtered, and the detachable connection facilitates the replacement of the third filter part.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The cooling water after the cycle is transported from the top of the water treatment tank through the water inlet pipe. The cooling water passes through several layers of filters by using the height difference principle. The cooling water passes through the filters layer by layer, so that the impurities mixed in the previous round of water circulation are intercepted and filtered by the filters layer by layer, so that the cooling water falls to the bottom of the water treatment tank and can continue to circulate a new round of water through the circulation pipe and circulation pump;

[0023] 2. The first filter structure and the second filter structure perform layered filtering to prevent debris from clogging the filter element. The first filter structure and the second filter structure are separated by a preset distance so that there is a height difference between them. The height difference is used to reduce water tension, speed up the flow of water and the efficiency of filtering;

[0024] 3. The first filter structure is installed as a whole at the first layer of the water treatment tank through the installation part, and a buffer part is provided near the water inlet pipe. When the cooling water is flushed, it will first contact the buffer part, and the buffer part is used to buffer the cooling water, so that the water pressure is reduced and the water flow is dispersed, and then the first filter part is used for primary filtration to extend the service life;

[0025] 4. The turntable is driven by the driving part to rotate, and the cooling water is affected by the centrifugal force of the turntable and passes through the second filter part. The debris cannot escape from the second filter part and remains in the turntable, thereby reducing the influence of water tension on the filtration process, and at the same time speeding up the water flow and ensuring a stable filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the outer surface of the water treatment system in one embodiment of the present application;

[0027] Figure 2 is a schematic diagram of the cross-sectional structure of a water treatment tank in some embodiments of the present application;

[0028] Figure 3 This is a schematic diagram of a first cross-sectional structure of a water treatment tank in another embodiment of the present application;

[0029] Figure 4 is a schematic diagram of a second cross-sectional structure of a water treatment box in another embodiment of the present application;

[0030] The marks in the accompanying drawings are: 1. water treatment box, 11. limiting groove, 12. guide member, 121. third filter part, 2. water inlet pipe, 3. filter element, 31. first filter structure, 311. mounting part, 312. buffer part, 313. first filter part, 32. second filter structure, 321. driving part, 322. turntable, 3221. inner groove, 323. second filter part, 4. circulation pipe, 5. circulation pump. DETAILED DESCRIPTION

[0031] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0032] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0033] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0034] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0036] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0037] The embodiment of the present application discloses a plastic production water treatment system.

[0038] The water treatment system is connected to a CNC chassis, which provides control of water circulation and water treatment. Figure 1 and Figure 2 As shown, a plastic production water treatment system includes a water treatment box 1, a water inlet pipe 2, a circulation pipe 4 and a circulation pump 5; a plurality of filter elements 3 are arranged in the water treatment box 1 along the vertical direction, the water treatment box 1 adopts a rectangular metal box structure, and the water treatment box 1 is provided with an opening and closing door for maintenance (not shown in the figure), and there is a space for water treatment inside, and the filter element 3 can adopt a plurality of layers of filter nets, and the filter nets are used to filter the debris followed by the cooling water.

[0039] The water inlet pipe 2 is connected with the top of the water treatment tank 1. The water inlet pipe 2 transports the circulating cooling water from the top of the water treatment tank 1. Due to the principle of height difference, the cooling water passes through the filter element 3 and enters the bottom of the water treatment tank 1. The circulation pipe 4 is connected with the bottom of the water treatment tank 1. The circulation pump 5 is connected with the circulation pipe 4 and is located outside the water treatment tank 1. The circulation pump 5 is connected to the external plastic production equipment to start a new round of water circulation.

[0040] Specifically, the cooling water that has completed the circulation is transported from the top of the water treatment tank 1 through the water inlet pipe 2, and the cooling water passes through several layers of filter elements 3 using the height difference principle. The cooling water passes through the filter elements 3 layer by layer, so that the debris mixed in the previous round of water circulation is intercepted and filtered layer by layer by the filter elements 3, so that the cooling water falls to the bottom of the water treatment tank 1, and can continue to perform a new round of water circulation through the circulation pipe 4 and the circulation pump 5.

[0041] In another embodiment, reference Figure 3As shown, several filter elements 3 include a first filter structure 31 and a second filter structure 32; the water treatment box 1 is divided into two layers, the first filter structure 31 is installed on the first layer, and the second filter structure 32 is installed on the second layer. The first filter structure 31 and the second filter structure 32 are separated by a preset distance. After the water treatment box 1 is divided into two layers, the first filter structure 31 and the second filter structure 32 are distributed in the two layers. The preset distance mainly refers to the height difference between the first filter structure 31 and the second filter structure 32. The cooling water is affected by the height difference and has gravitational potential energy, thereby reducing the influence of water tension, accelerating the flow of water and the filtering efficiency.

[0042] The first filter structure 31 and the second filter structure 32 have different filtering degrees. The first filter structure 31 performs preliminary filtering to filter out larger debris in the cooling water, while the second filter structure has a stronger filtering effect. Multi-layer filtration can gradually filter out the cooling water to avoid debris clogging the filter element 3, thereby ensuring that the filtering conditions can be fully met.

[0043] Furthermore, the first filter structure 31 includes a mounting portion 311, a buffer portion 312 and a first filter portion 313; the mounting portion 311 is connected to the inner wall of the water treatment tank 1, and the buffer portion 312 and the first filter portion 313 are sequentially mounted on the mounting portion 311 along the vertical direction. The mounting portion 311 can adopt a mounting frame, the buffer portion 312 can adopt a buffer net, and the first filter portion 313 can adopt a filter net, and the aperture of the buffer net is larger than the aperture of the filter net, and the buffer net is located above the filter net.

[0044] Among them, the buffer part 312 bends toward the water inlet pipe 2 to form an arc-shaped buffer net, so that after the water flow contacts the arc-shaped buffer net, the water flow can be further buffered and dispersed. The first filter part 313 bends toward the second layer of the water treatment tank 1 to form an arc-shaped filter net. The arc-shaped filter net bent toward the second layer is concave, so that during the filtering process, debris can be stored in the arc-shaped filter net to collect the debris.

[0045] Specifically, when the water inlet pipe 2 transports the cooling water that has completed the circulation from the top of the first layer of the water treatment tank 1, the cooling water is affected by the height difference or the external water pump, and there is excessive water pressure. The excessive water pressure directly impacts the filter element 3, which can easily damage the filter element 3 and shorten the service life. Therefore, a buffer part 312 is set in the first filter structure 31. When the cooling water is flushed, it will first contact the buffer part 312. The buffer part 312 is used to buffer the cooling water, so that the water pressure is reduced and the water flow is dispersed, and then it is initially filtered through the first filter part 313 to extend the service life.

[0046] Furthermore, a limiting groove 11 is provided in the vertical direction on the first layer of the water treatment tank 1, and a connecting protrusion is provided on the mounting portion 311, and is slidably connected to the limiting groove 11 through the connecting protrusion. The mounting portion 311 is detachable and can slide through the limiting groove 11 and the first layer inner wall of the water treatment tank 1, so as to facilitate the removal of the debris initially filtered out of the first filtering structure 31, thereby avoiding long-term accumulation and resulting in reduced filtering effect.

[0047] Among them, two plug-in grooves are also provided on the inner wall of the installation part 311, and the buffer part 312 and the first filter part 313 can be plugged into the two plug-in grooves respectively, so that the buffer part 312 and the first filter part 313 can be taken out from the installation part 311 separately, which is convenient for separate replacement or cleaning, reducing maintenance costs.

[0048] The first inner wall of the water treatment box 1 is also provided with a conical guide plate, which can guide the cooling water filtered by the first filter part 313 to the second filter structure 32 to ensure the accuracy of the flow position.

[0049] In another embodiment, reference Figure 4 As shown, the second filtering structure 32 includes a driving part 321, a turntable 322, and a second filtering part 323; the driving part 321 is installed on the second inner wall of the water treatment tank 1, the turntable 322 is connected to the driving end of the driving part 321, and blocks the water flow, the driving part 321 includes a driving motor, a water-blocking cover and a connecting frame, the connecting frame is connected to the second inner wall of the water treatment tank 1, the driving motor is installed on the connecting frame, the water-blocking cover blocks the outer wall of the driving motor to prevent water flow or splashes from affecting the normal operation of the driving motor, wherein a hollow cavity is opened in the connecting frame for routing the power connection of the driving motor.

[0050] The turntable 322 is a rotating platform, and is directly opposite to the first filtering structure 31 above, so that the cooling water that has been initially filtered and dropped from the first filtering structure 31 can directly drip onto the rotating platform, and the driving unit 321 is located below the turntable 322, which can provide a rotational drive for the turntable 322 and provide shielding for the water flow of the driving unit 321 to prevent the water flow from directly contacting the driving unit 321. When a conical guide plate is provided, the water flow can be directly diverted to the turntable 322 to prevent the flow position of the water flow from deviating from the turntable 322.

[0051] The second filter part 323 is installed along the edge of the turntable 322. The second filter part 323 can adopt an annular filter net, and the pore size of the annular filter net is smaller than that of the first filter part 313 in the first filter structure 31, so that impurities can be intercepted and filtered out more accurately. However, the smaller pore size also means that it is more difficult for water to pass through the second filter part 323. Therefore, the second filter part 323 needs to be used in combination with the drive part 321 and the turntable 322.

[0052] Specifically, when the cooling water that has been preliminarily filtered by the first filter structure 31 drops onto the turntable 322, the turntable 322 is driven by the drive unit 321 to rotate in a circular direction. When the cooling water contacts the rotating turntable 322, it is affected by the centrifugal force of the turntable 322 and moves toward the second filter unit 323, and passes through the second filter unit 323 with the centrifugal force. The weight of the debris is greater than that of water, and the size of the debris is larger than the pore size of the second filter unit 323. Therefore, the debris will remain in the turntable 322 and cannot be separated from the second filter unit 323, thereby ensuring the stability of the water flow without affecting the filtering effect.

[0053] The second filtering structure 32 can reduce the influence of water tension on the filtering process, and at the same time can speed up the water flow and ensure a stable filtering effect.

[0054] Furthermore, an inner groove 3221 is provided at the center of the turntable 322, so that the surface of the turntable 322 forms an arc surface inclined toward the center. The inner groove 3221 can be used to conveniently collect debris and control the flow path of the cooling water affected by the centrifugal force, thereby preventing the cooling water from being affected by the centrifugal force and directly leaving the turntable 322 without passing through the second filter part 323.

[0055] Furthermore, the inner wall of the water treatment tank 1 of the second layer is also inclinedly provided with a guide member 12, and the second filtering structure 32 is located in the middle of the guide member 12. The height of the end of the guide member 12 is lower than the turntable 322. The guide member 12 can adopt an inclined guide plate. The main function of the guide member 12 is to receive the cooling water splashed down by the centrifugal force and guide it downward uniformly to avoid excessive dispersion of the cooling water and affect collection. At the same time, the height of the end of the guide member 12 is lower than the height of the turntable 322, so that the water flows along the guide member 12 after splashing, and will not splash onto the driving part 321 and affect the normal operation of the driving part 321.

[0056] Furthermore, the guide member 12 is provided with a removable third filter part 121 near the turntable 322. The third filter part 121 can adopt an activated carbon filter belt. The pore size of the third filter part 121 is larger than that of the second filter part 323. Therefore, the cooling water can be filtered without using centrifugal force without affecting the flow rate. The third filter part 121 performs a third filtration. The main purpose of the third filtration is to fill in the gaps of missed debris and further reduce the situation of missed debris. Activated carbon is used to adsorb odor, organic matter, colloid, iron and residual chlorine in the cooling water, so as to reduce the turbidity and color of the water and purify the water quality.

[0057] A socket frame is provided at the end of the flow guide 12 , that is, at one end close to the turntable 322 , and the third filter part 121 can be inserted into the socket frame to achieve a detachable connection, thereby facilitating the replacement of the third filter part 121 .

[0058] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plastic production water treatment system, characterized in that: The invention comprises a water treatment tank (1), a water inlet pipe (2), a circulation pipe (4) and a circulation pump (5); a plurality of filter elements (3) are arranged in the vertical direction in the water treatment tank (1); the water inlet pipe (2) is connected to the top of the water treatment tank (1); the circulation pipe (4) is connected to the bottom of the water treatment tank (1); and the circulation pump (5) is connected to the circulation pipe (4) and connected to external plastic production equipment.

2. A plastic production water treatment system according to claim 1, characterized in that: The plurality of filter elements (3) include a first filter structure (31) and a second filter structure (32); the water treatment tank (1) is divided into two layers, the first filter structure (31) is installed on the first layer, and the second filter structure (32) is installed on the second layer; the first filter structure (31) and the second filter structure (32) are spaced apart by a preset distance.

3. A plastic production water treatment system according to claim 2, characterized in that: The first filtering structure (31) comprises a mounting portion (311), a buffer portion (312) and a first filtering portion (313); the mounting portion (311) is connected to the inner wall of the water treatment tank (1); the buffer portion (312) and the first filtering portion (313) are sequentially mounted on the mounting portion (311) along a vertical direction.

4. A plastic production water treatment system according to claim 3, characterized in that: The first layer of the water treatment box (1) is provided with a limiting groove (11), and the mounting portion (311) is provided with a connecting protrusion, which is slidably connected to the limiting groove (11) via the connecting protrusion.

5. A plastic production water treatment system according to claim 2, characterized in that: The second filtering structure (32) comprises a driving part (321), a turntable (322), and a second filtering part (323); the driving part (321) is installed on the second inner wall of the water treatment tank (1); the turntable (322) is connected to the driving end of the driving part (321) and blocks the water flow; the second filtering part (323) is installed along the surface edge of the turntable (322).

6. A plastic production water treatment system according to claim 5, characterized in that: An inner groove (3221) is provided at the center of the turntable (322).

7. A plastic production water treatment system according to claim 5 or 6, characterized in that: The inner wall of the water treatment box (1) of the second layer is also provided with a flow guide (12) at an angle, and the second filtering structure (32) is located in the middle of the flow guide (12), and the height of the end of the flow guide (12) is lower than that of the turntable (322).

8. A plastic production water treatment system according to claim 7, characterized in that: The flow guide member (12) is provided with a detachable third filter portion (121) in a direction close to the turntable (322).

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