Granulation water filtering device

Abstract

The utility model relates to the technical field of pelletizing water filtering, in particular to a pelletizing water filtering device which comprises a pelletizing water storage tank, a filtering structure used for filtering pelletizing water is arranged at the water outlet end of the pelletizing water storage tank, and a pelletizing water pump used for injecting the filtered pelletizing water into the pelletizing water storage tank is arranged at the liquid outlet end of the filtering structure. A back-flushing filter connected with the pelletizing water storage tank is arranged at the liquid outlet end of the pelletizing water storage tank, a fine filter connected with the back-flushing filter is arranged at the liquid outlet end of the back-flushing filter, and a pelletizing system connected with the fine filter is arranged at the liquid outlet end of the fine filter. Compared with the prior art, the pelletizing water filtering device has the advantages that due to the arrangement of the filtering structure, the pressure of an original system can be reduced, the operation of the original system is not influenced during cleaning, the cleaning period of the original system is shortened, the material blocking phenomenon is eliminated, the strip phenomenon of pelletizing is reduced, and a good effect is brought to the stability of the process.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizing water filtration, in particular to a pelletizing water filtration device. Background Art

[0002] The pelletizing system of nylon polymerization is an important link in polymerization production. The stability of pelletizing determines the stability of the entire production line. Whether the pelletizing water system operates normally or not is the premise of pelletizing stability. Therefore, the setting of the pelletizing water filtration system is particularly important. The common pelletizing water filtration process requires pelletizing water to enter the storage tank, be filtered by a single-layer aperture filter, and then be pressurized by a water pump to enter the recoil filter. Then, it passes through the fine filter of the pelletizer and is sent to the pelletizing system for use. Although this process is simple and convenient, it also has some disadvantages. If there is a problem in one place in the entire circulating water system during a process, the pelletizing water pressure will be reduced, causing pelletizing to be blocked. The phenomenon of material leakage causes the pelletizing equipment to be damaged. Since the backwash filter is covered with shredded chips or powder, the cleaning frequency is high, which increases the cleaning intensity and labor costs, and also causes the instability of the pelletizing process. Although the bottom discharge pipeline is added, when the shredded chips and dust need to be discharged from the system, the pelletizing water and the shredded chips need to be discharged at the same time, which will waste more pure water and increase the unit consumption and cost of the product. After the pelletizing water system has been running for a period of time, the cleaning tank needs to be stopped for cleaning due to the blockage of the screen, which affects the continuous operation of the production system, resulting in the reduction of subsequent product quality and the sale of products at a lower grade, which brings losses to the company. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a pelletizing water filtering device, which solves the problems raised in the above background technology.

[0005] (II) Technical solution

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: a pelletizing water filtering device, including a pelletizing water storage tank, the water outlet end of the pelletizing water storage tank is provided with a filtering structure for filtering the pelletizing water, the liquid outlet end of the filtering structure is provided with a pelletizing water pump for injecting the filtered pelletizing water into the pelletizing water storage tank, the liquid outlet end of the pelletizing water storage tank is provided with a recoil filter connected to the pelletizing water storage tank, the liquid outlet end of the recoil filter is provided with a fine filter connected to the recoil filter, the liquid outlet end of the fine filter is provided with a pelletizing system connected to the fine filter, and the liquid outlet end of the pelletizing system is connected to the liquid inlet end of the pelletizing water storage tank.

[0007] Furthermore, the filtering structure comprises a filter, the liquid inlet end of the filter is connected to the liquid outlet end of the pelletizing water storage tank, and the bottom end of the filter is provided with a discharge port.

[0008] Furthermore, the liquid outlet of the filter is connected to the liquid inlet of the pelletizing water pump.

[0009] Furthermore, the cross-sectional shape of the bottom of the pelletizing water storage tank is V-shaped, and the liquid outlet end of the bottom of the V-shaped pelletizing water storage tank is connected to the filter.

[0010] Furthermore, a pelletizing water circulation pump connected to the pelletizing water storage tank is provided at the bottom of the pelletizing water storage tank, and a liquid outlet of the pelletizing water circulation pump is connected to a liquid inlet of the backwash filter.

[0011] The technical process of this solution is to add a filtering structure and a pelletizing water pump, remove broken pieces and burrs through coarse filtration of the water system, and then transport them to the other side of the pelletizing water for use by the pelletizing system.

[0012] The technical advantages of this solution are: since cleaning of the system will affect the operation of the system, adding a filtration system can reduce the pressure of the original system, and will not affect the operation of the original system during cleaning, reducing the cleaning cycle of the original system. More importantly, it eliminates the occurrence of blockage, reduces the long strip phenomenon of pelletizing, and brings good results to the stability of the process.

[0013] Compared with the prior art, the pelletizing water filtering device can reduce the pressure of the original system by setting the filtering structure, and does not affect the operation of the original system during cleaning, reduces the cleaning cycle of the original system, eliminates the occurrence of material blockage, reduces the long strip phenomenon of pelletizing, and brings good effects on the stability of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] In the figure: 1. Pelletizing water storage tank; 2. Filtration structure; 3. Pelletizing water pump; 4. Recoil filter; 5. Fine filter; 6. Pelletizing system; 7. Filter; 8. Discharge port; 9. Pelletizing water circulation pump. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] See also Figure 1The utility model provides a technical solution: a pelletizing water filtering device, comprising a pelletizing water storage tank 1, a pelletizing water circulation pump 9 connected to the pelletizing water storage tank 1 is arranged at the bottom of the pelletizing water storage tank 1, the liquid outlet end of the pelletizing water circulation pump 9 is connected to the liquid inlet end of the recoil filter 4, the cross-sectional shape of the bottom of the pelletizing water storage tank 1 is V-shaped, the liquid outlet end of the bottom of the V-shaped pelletizing water storage tank 1 is connected to the filter 7, the water outlet end of the pelletizing water storage tank 1 is provided with a filtering structure 2 for filtering pelletizing water, the filtering structure 2 includes the filter 7, the liquid outlet end of the filter 7 is connected to the pelletizing water pump 3, the liquid inlet end of the filter 7 is connected to the liquid outlet end of the pelletizing water storage tank 1, the bottom end of the filter 7 is provided with a discharge port 8, the liquid outlet end of the filtering structure 2 is provided with a pelletizing water pump 3 for injecting filtered pelletizing water into the pelletizing water storage tank 1, the liquid outlet end of the pelletizing water storage tank 1 is provided with a recoil filter 4 connected to the pelletizing water storage tank 1, the liquid outlet end of the recoil filter 4 is provided with a fine filter 5 connected to the recoil filter 4, the liquid outlet end of the fine filter 5 is provided with a pelletizing system 6 connected to the fine filter 5, and the liquid outlet end of the pelletizing system 6 is connected to the liquid inlet end of the pelletizing water storage tank 1.

[0018] The electrical components mentioned in this article are all connected to an external main controller and 380V commercial power, and the main controller can be a conventional known device for control such as a computer.

[0019] In the description of this specification, the terms "connect", "install", "fix", "set", etc. are understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in this utility model or utility model can be understood according to the specific circumstances.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pelletizing water filtering device, comprising a pelletizing water storage tank (1), characterized in that: The water outlet end of the pelletizing water storage tank (1) is provided with a filtering structure (2) for filtering the pelletizing water; the liquid outlet end of the filtering structure (2) is provided with a pelletizing water pump (3) for injecting the filtered pelletizing water into the pelletizing water storage tank (1); the liquid outlet end of the pelletizing water storage tank (1) is provided with a recoil filter (4) connected to the pelletizing water storage tank (1); the liquid outlet end of the recoil filter (4) is provided with a fine filter (5) connected to the recoil filter (4); the liquid outlet end of the fine filter (5) is provided with a pelletizing system (6) connected to the fine filter (5); the liquid outlet end of the pelletizing system (6) is connected to the liquid inlet end of the pelletizing water storage tank (1).

2. A pelletizing water filtering device according to claim 1, characterized in that: The filtering structure (2) comprises a filter (7), the liquid inlet end of the filter (7) is connected to the liquid outlet end of the pelletizing water storage tank (1), and the bottom end of the filter (7) is provided with a discharge port (8).

3. A pelletizing water filtering device according to claim 2, characterized in that: The liquid outlet end of the filter (7) is connected to the liquid inlet end of the pelletizing water pump (3).

4. A pelletizing water filtering device according to claim 3, characterized in that: The cross-sectional shape of the bottom of the pelletizing water storage tank (1) is quasi-V-shaped, and the liquid outlet end of the bottom of the quasi-V-shaped pelletizing water storage tank (1) is connected to the filter (7).

5. A pelletizing water filtering device according to claim 1, characterized in that: A pelletizing water circulation pump (9) connected to the pelletizing water storage tank (1) is provided at the bottom of the pelletizing water storage tank (1), and a liquid outlet of the pelletizing water circulation pump (9) is connected to a liquid inlet of a backwash filter (4).

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