Fiber post-treatment washing self-circulation system

Abstract

The utility model relates to a fiber processing technology, in particular to a fiber post-processing washing self-circulation system which comprises a washing area, and a plurality of washing tanks used for washing viscose fibers are arranged in the washing area. The output end of the steam-jet pump is communicated with the cleaning input end of the cleaning tank through a flushing pipe, the steam inlet end of the steam-jet pump is communicated with a steam main pipe, and the cleaning water suction end of the steam-jet pump is communicated with a water return main pipe; and the cleaning output end of the cleaning tank is communicated with the water return main pipe. All stages of washing circulation systems do not interfere with one another, the stability of the washing circulation systems is improved, and defective viscose fibers are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fiber processing technology especially to a fiber post-treatment water washing self-circulation system. BACKGROUND

[0002] Viscose fiber is also known as viscose silk, which is a kind of artificial fiber. Its main raw material is chemical pulp, including cotton pulp and wood pulp. It is regenerated by separating natural cellulose through chemical reaction. The production process of viscose fiber mainly includes five parts: preparation of alkali fiber, preparation of viscose, spinning forming, fiber post-treatment and packaging of finished products.

[0003] After spinning forming reaction, viscose becomes fiber tows. After cutting and cooking, it enters the scouring machine for chemical and water washing post-treatment. There are four water washing processes in post-treatment, each of which has 2-4 spray washing tanks. Water washing plays a crucial role in fiber quality. Firstly, it fully washes the previous chemical treatment reagent clean. Secondly, it fully washes the fiber to ensure its cleanliness. The four water washing cycles are as follows: reverse osmosis water is heated by a condenser and enters a high tank. At the same time, steam is directly injected into the high tank to heat the water to the required index. Then, the water flows to the scouring machine mother pipe of each water washing process for fiber washing. The water after washing is collected by a liquid collection tank and then transported to the three water washing cycle tank by a centrifugal pump. After three water washing, the water is collected in the three water washing cycle tank and then transported to the two water washing mother pipe by a centrifugal pump. After two water washing, the water is collected in the two water washing cycle tank and then transported to the one water washing mother pipe by a centrifugal pump. Finally, the water is collected and discharged to the sewage treatment workshop.

[0004] Prior art document CN208219179U discloses a water washing device suitable for viscose fiber processing technology. The cleaning water in the transmission tank is pumped to the water washing tank by a circulating water pump, and then the cleaning water in the water washing tank is used to wash the viscose fiber and flows back to the transmission tank. The water washing flow is adjusted according to the production load. However, this circulation method is complex to adjust. Moreover, if any centrifugal pump in the process fails or the pipeline leaks, it will cause overflow of the circulation tank or the transmission tank, interruption of the subsequent water washing, and finally result in excessive whiteness and residual sulfur of the fiber product, production load fluctuation or even production line shutdown, quality complaints and economic losses, thereby causing the problem of low practicality of the conventional fiber treatment system.

[0005] Therefore, the technical personnel in the field are committed to developing a fiber post-treatment water washing self-circulation system, which does not interfere with each other in the water washing circulation system, improves the stability of the water washing circulation system, and reduces the generation of viscose fiber defective products. UTILITY MODEL CONTENT

[0006] The utility model wants to solve the technical problem to provide a kind of fiber post-processing water washing self-circulation system, and each level water washing circulation system is not interfered with each other, improve the stability of water washing circulation system, reduce viscose fiber defective product generation.

[0007] The utility model solves the technical scheme as follows to the above technical problem:

[0008] A kind of fiber post-processing water washing self-circulation system, including

[0009] Water washing area, the water washing area has multiple cleaning tanks for cleaning viscose fiber in it;

[0010] Steam jet pump, the steam jet pump output end is communicated with the cleaning tank cleaning input end by flushing pipe, and the steam jet pump steam import end is communicated with steam main pipe and the steam jet pump cleaning water suction end is communicated with backwater main pipe;

[0011] The cleaning tank cleaning output end is communicated with the backwater main pipe.

[0012] The beneficial effects of the above scheme are: steam main pipe is used to provide high-temperature steam with certain flow and pressure to the steam import end of steam jet pump, so that the steam jet pump has certain vacuum degree and the cleaning water in backwater main pipe is sucked in, in steam jet pump, cleaning water mixes with high-temperature steam and then is input into cleaning tank to clean viscose fiber, and the water after cleaning flows into backwater main pipe, so the water washing tanks in each water washing area are not interfered with each other, improve the stability of water washing circulation system, reduce viscose fiber defective product generation.

[0013] High-temperature steam is not only used to heat cleaning water, but also used to provide power for steam jet pump, without additional heat exchange components and hot water pump, optimize cleaning process.

[0014] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0015] Further, the water washing area includes first water washing area, second water washing area, third water washing area and fourth water washing area, the flushing pipe input end of two cleaning tanks on the fourth water washing area is communicated with the condenser backwater main pipe and is used for system water replenishment, and the flushing pipe input end is equipped with first valve group.

[0016] The beneficial effects of the above further scheme are: the water washing area is divided into multiple independent first water washing area, second water washing area, third water washing area and fourth water washing area, each water washing area is independent of each other, and is not interfered with each other, and first valve group is used to control the cleaning water amount input in water washing self-circulation system.

[0017] Further, the steam main pipe input end is connected with the drying secondary steam pipe through a steam delivery pipe, and a second valve group is installed on the steam delivery pipe.

[0018] The beneficial effect of the further scheme is that the second valve group is used to regulate the pressure and flow of the steam input into the steam main pipe, so that the cleaning water maintains a suitable cleaning temperature and flow after mixing with the steam.

[0019] Further, the water return main pipe is connected with an external drainage tank through a drainage pipe, and a U-shaped water retaining pipe is installed on the drainage pipe.

[0020] The beneficial effect of the further scheme is that the U-shaped water retaining pipe makes the water return main pipe maintain full water, avoiding air suction of the steam jet pump.

[0021] Further, an adjusting valve is installed between the steam jet pump output end and the cleaning tank input end.

[0022] The beneficial effect of the further scheme is that the adjusting valve is used to regulate the flow and pressure of the cleaning water input into the water washing tank.

[0023] Further, a liquid collecting tank is installed at the cleaning tank output end, and the liquid collecting tank output end is communicated with the water return main pipe.

[0024] The beneficial effect of the further scheme is that the liquid collecting tank is used to collect the used cleaning water and deliver it into the water return main pipe.

[0025] Further, a standby water supplement pipe is connected with the cleaning tank input end of the third water washing area, and the other end of the standby water supplement pipe is connected with a condenser water return main pipe.

[0026] The beneficial effect of the further scheme is that when the flushing pipe between the condenser water return main pipe and the fourth water washing area is faulty, blocked or the first valve group is faulty, the standby water supplement pipe is used to supplement water into the water washing circulation system, and the standby water supplement pipe can also be shared with the water supplement system of the fourth water washing area. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a specific embodiment of the utility model fiber post-processing water washing self-circulation system diagram.

[0028] In the drawings, the components represented by each reference numeral are listed as follows:

[0029] 1, cleaning tank; 2, backwater main pipe; 3, steam main pipe; 4, steam jet pump; 5, liquid collection tank; 6, second valve group; 7, standby water supply pipe; 8, first valve group; 9, regulating valve; 10, drying secondary steam pipe; 11, condenser backwater main pipe; 12, flushing pipe; 13, washing zone; 131, first washing zone; 132, second washing zone; 133, third washing zone; 134, fourth washing zone; 14, external drain tank; 15, U-shaped water retaining pipe; 16, steam delivery pipe. DETAILED DESCRIPTION

[0030] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0031] In the description of the present application, it should be understood that the terms "center", "length", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0033] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] As shown in FIG. Figure 1 A fiber post-treatment washing self-circulation system, comprising

[0035] The water washing area 13 comprises, in specific embodiments, a first water washing area 131, a second water washing area 132, a third water washing area 133 and a fourth water washing area 134 arranged in sequence from left to right, and a plurality of cleaning tanks 1 for cleaning viscose fibers are arranged in the water washing area 13, and the plurality of cleaning tanks 1 are uniformly arranged on the water washing area 13. In specific embodiments, four cleaning tanks 1 are arranged in the first water washing area 131, four cleaning tanks 1 are arranged in the second water washing area 132, two cleaning tanks 1 are arranged in the third water washing area 133, and four cleaning tanks 1 are arranged in the fourth water washing area 134.

[0036] The steam jet pump 4 is connected to the cleaning input end of the cleaning tank 1 through the flushing pipe 12, and in specific embodiments, one cleaning tank 1 corresponds to one steam jet pump 4 or one steam jet pump 4 corresponds to two cleaning tanks 1, the steam inlet end of the steam jet pump 4 is connected to the steam main pipe 3, the cleaning water suction end of the steam jet pump 4 is connected to the water return main pipe 2, and the cleaning output end of the cleaning tank 1 is connected to the water return main pipe 2.

[0037] In the utility model, the cleaning output end of each cleaning tank 1 is connected to the water return main pipe 2, and the steam jet pump 4 provides steam with certain flow and pressure, so that each cleaning tank 1 in each water washing area 13 forms an independent circulation system, which ensures that even if one or two cleaning tanks 1 or pipes fail, it will not affect the normal operation of other cleaning tanks 1, thereby improving the stability of the entire washing system, and the use of the steam jet pump 4 reduces the dependence on the centrifugal pump, so that even if a part fails, it will not cause the entire system to shut down, thereby reducing production interruption and economic losses caused by equipment failure, and the steam jet pump 4 sucks and transports cleaning water to the cleaning tank 1 through steam power, ensuring the stability of the flow and pressure of the cleaning water, which not only improves the cleaning efficiency, but also more thoroughly removes chemical reagents and impurities on the fibers, ensuring the cleanliness of the fibers.

[0038] As shown in FIG. 1, Figure 1 In some embodiments, the output end of the cleaning tank 1 is also provided with a liquid collecting tank 5, and in specific embodiments, one cleaning area 13 is provided with one liquid collecting tank 5, and the output end of the liquid collecting tank 5 is connected to the water return main pipe 2. The cleaning water flowing out of the plurality of cleaning tanks 1 is collected through the liquid collecting tank 5, which ensures that the output end of the cleaning tank 1 will not overflow, maintains the stable operation of the system, reduces production interruption and equipment damage caused by water overflow, and at the same time, the cleaning water exists at the lower end of the liquid collecting tank 5, reducing the mixing of air into the water return main pipe 2.

[0039] The input end of the flushing pipe 12 of the two cleaning tanks 1 in the fourth washing area 134 is communicated with the condenser backwater main pipe 11 and used for system water supplement, and the input end of the flushing pipe 12 is provided with the first valve group 8. The first valve group 8 can include a flow regulating valve, a pressure regulating valve and a bypass valve, and each valve is electrically connected with an automatic control device. The water supplement amount and pressure are accurately controlled by automatically adjusting the opening degree of the first valve group 8, so as to avoid incomplete washing caused by insufficient water amount, too high water temperature or too high impurity concentration in the cleaning water.

[0040] Meanwhile, the input end of the cleaning tank 1 in the third washing area 133 is also connected with a standby water supplement pipe 7, and the other end of the standby water supplement pipe 7 is connected with the condenser backwater main pipe 11. In the specific embodiment, one cleaning tank 1 in the third washing area 133 close to the right side is communicated with the standby water supplement pipe 7 as a standby or emergency water supplement pipeline of the water washing circulating system, and in actual work, the standby water supplement pipe 7 and the water supplement system in the fourth washing area 134 can be shared.

[0041] The backwater main pipe 2 is connected with an external drainage tank 14 through a drainage pipe, the external drainage tank 14 is connected with the end of the backwater main pipe 2 away from the standby water supplement pipe 7, so that the cleaning water from the condenser backwater main pipe 11 into the cleaning tank 1 reaches the external drainage tank 14 after multiple washing, and a U-shaped water retaining pipe 15 is installed on the drainage pipe. The external drainage tank 14 is used for collecting high-concentration waste liquid after multiple washing, which is beneficial to subsequent further collection and treatment, and the highest liquid level of the U-shaped water retaining pipe 15 is higher than that of the backwater main pipe 2, so that the backwater main pipe 2 is always full of water, avoiding air absorption of the steam jet pump 4.

[0042] The input end of the steam main pipe 3 is connected with the drying secondary steam pipe 10 through a steam conveying pipe 16, the steam main pipe 3 and the standby water supplement pipe 7 are respectively located at the left side and the rear side of the multiple washing areas 13, and the second valve group 6 is installed on the steam conveying pipe 16, the second valve group 6 includes a steam pressure regulating valve, a steam flow regulating valve and a bypass valve, so that the input pressure and flow of the steam can be flexibly controlled, the steam jet pump 4 can stably work under different production loads, and the adaptability and reliability of the system are improved. The adjusting valve 9 is installed between the output end of the steam jet pump 4 and the cleaning input end of the cleaning tank 1, and the adjusting valve 9 is used for regulating the flow and pressure of the cleaning water input into the cleaning tank 1.

[0043] The utility model discloses a working principle: through the cleaning water in condenser backwater mother tube 11 after entering to the third water washing area and fourth water washing area in the cleaning tank 1 close to right side of the cleaning water of viscose fiber spray washing, after spray washing, the cleaning water is collected to the liquid collection tank 5 and then enters backwater main pipe 2. With the medium in backwater main pipe 2 fills, start the multiple steam jet pumps 4 on four water washing areas 13, through the high-speed steam in steam main pipe 3 into steam jet pump 4 mixing chamber, take away the air in mixing chamber, thereby generating vacuum in mixing chamber, utilize the vacuum suction cleaning water in backwater main pipe 2 and in steam mixing, after the control of regulating valve 9, deliver to the cleaning tank 1 input end and wash viscose fiber, after washing, the cleaning water passes through liquid collection tank 5 and then returns backwater main pipe 2 again, in the continuous cleaning process, the cleaning water gradually from backwater main pipe 2 right side enters multiple repeated recovery and washes viscose fiber and then flows to backwater main pipe 2 and forms high concentration impurity cleaning water, and the high concentration impurity cleaning water flows to the external discharge water tank 14 and recycles processing, so on and so forth, until the viscose fiber is washed clean.

[0044] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable way in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of different embodiments or examples without contradiction.

[0045] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A fiber post-treatment water-washing self-circulation system, characterized in that: Comprising a water washing area (13) having a plurality of washing tanks (1) for cleaning viscose fibers inside the water washing area (13); a steam jet pump (4) having an output end communicated with a washing input end of the washing tank (1) through a flushing pipe (12), a steam inlet end of the steam jet pump (4) communicated with a steam main pipe (3), and a washing water suction end of the steam jet pump (4) communicated with a backwater main pipe (2); a washing output end of the washing tank (1) communicated with the backwater main pipe (2).

2. The fiber aftertreatment water wash self-circulation system according to claim 1, characterized by: The water washing area (13) comprises a first water washing area (131), a second water washing area (132), a third water washing area (133), and a fourth water washing area (134), the flushing pipe (12) input end of two washing tanks (1) on the fourth water washing area (134) communicated with a condenser backwater main pipe (11) and used for system water supplement, and the flushing pipe (12) input end is installed with a first valve group (8).

3. The fiber aftertreatment water wash self-circulation system according to claim 1, characterized by: The steam main pipe (3) input end is connected with a drying secondary steam pipe (10) through a steam delivery pipe (16), and the steam delivery pipe (16) is installed with a second valve group (6).

4. The fiber aftertreatment water wash self-circulation system according to claim 1, characterized by: The backwater main pipe (2) is connected with an external water draining tank (14) through a water draining pipe, and the water draining pipe is installed with a U-shaped water retaining pipe (15).

5. The fiber aftertreatment water wash self-circulation system according to claim 1, characterized by: An adjusting valve (9) is installed between the steam jet pump (4) output end and the washing input end of the washing tank (1).

6. The fiber aftertreatment water wash self-circulation system according to claim 1, characterized by: A liquid collecting tank (5) is further installed at the washing output end of the washing tank (1), and the liquid collecting tank (5) output end is communicated with the backwater main pipe (2).

7. The fiber aftertreatment water wash self-circulation system according to claim 2, characterized by: The washing tank (1) input end of the third water washing area (133) is further connected with a standby water supplement pipe (7), and the other end of the standby water supplement pipe (7) is connected with the condenser backwater main pipe (11).

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