Spunlace water return equipment for spunlace non-woven fabric

By designing a spunlace nonwoven fabric machine return water device that includes a purification mechanism and a sedimentation component, the problem of frequent interruptions for cleaning sediment in the return water device of the spunlace nonwoven fabric machine was solved, thus achieving continuous wastewater treatment and efficient sediment removal.

CN224226683UActive Publication Date: 2026-05-12CHIBI HENGRUI NONWOVENS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHIBI HENGRUI NONWOVENS CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing spunlace nonwoven fabric machine's wastewater return equipment requires frequent pauses during the treatment process to clean up sediment, making it difficult to achieve continuous wastewater inflow and treatment.

Method used

A spunlace nonwoven fabric spunlace water recycling device was designed, which includes a purification mechanism and a sedimentation component. Impurities are filtered using first and second filter screens. Wastewater and treatment agent are uniformly mixed by a metering pump and a motor stirring rod. Separation of sediment and clean water and continuous treatment are achieved by a water pump and a sewage pump.

Benefits of technology

It achieves continuous wastewater treatment, enabling the removal of sediments without stopping operation, thus improving treatment efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224226683U_ABST
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Abstract

The utility model provides spunlace water return equipment for spunlace non-woven fabrics, which relates to the technical field of spunlace non-woven fabric wastewater treatment and comprises a purification mechanism, the purification mechanism comprises a treatment barrel, and a water treatment component is arranged in the treatment barrel. According to the spunlace water return equipment for the spunlace non-woven fabric, large impurities can be filtered through a first filter screen and a second filter screen, wastewater which is mixed with a treating agent and generates precipitates can be conveyed into a limiting barrel through a water injection pipe and a water pump, and the wastewater flows downwards, is diffused at the bottom of a precipitation barrel and then flows from bottom to top; the sediment sinks to the bottom of the settling barrel under the action of gravity, the clean water flowing upwards is discharged through the water outlet hole, the drainage weir and the water outlet pipe, the sediment and the clean water are separated, and the sediment at the bottom of the settling barrel can be pumped out by opening the valve and starting the sewage pump. And the sediment can be cleaned without stopping the operation.
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Description

Technical Field

[0001] This utility model relates to a water return device, specifically a water return device for spunlace nonwoven fabric, belonging to the field of wastewater treatment technology for spunlace nonwoven fabric. Background Technology

[0002] Spunlace nonwoven fabric machines are used to interweave fibers using high-pressure water jets to form nonwoven fabrics. They are widely used in medical, hygiene, and industrial fields. The uniformity of the fabric surface is affected by the spunlace process. The water return system of the spunlace nonwoven fabric machine is used to collect and treat the water generated during the spunlace process.

[0003] Chinese patent application CN221917468U discloses a spunlace machine return water filtration device. When the treatment agent is mixed with wastewater, a stirring mechanism stirs it to make the mixing of the treatment agent and wastewater more uniform and rapid. The treatment agent reacts with some impurities and coagulates. After coagulation, the sealing plate is pulled out, allowing the wastewater to flow into the next treatment process. Then, the wastewater is allowed to stand and separate. After standing, the height of the connecting frame is adjusted to adjust the height of the first water pump. After the height of the connecting frame is adjusted, the connecting frame is fixed with a limit block. Then, the first water pump can be turned on, and the upper layer of the separated wastewater can be extracted to complete the wastewater treatment. After the wastewater treatment is completed, the filter plate, insert plate, and pull-out plate can be pulled out to treat the solid impurities.

[0004] The above-mentioned patented technical solution requires a stirring, mixing, and settling process during operation. In addition, it is necessary to manually clean up accumulated impurities periodically. The process of settling and cleaning up accumulated impurities requires frequent interruptions in the entire water treatment process, making it difficult to achieve continuous inflow and treatment of wastewater. Therefore, a spunlace nonwoven fabric water return device is proposed here. Utility Model Content

[0005] This invention proposes a spunlace nonwoven fabric water recycling device that can continuously treat wastewater and clean sediment without stopping operation.

[0006] This utility model is achieved through the following technical solution: a spunlace nonwoven fabric water return device, including a purification mechanism, wherein the purification mechanism includes a treatment tank, and a water treatment component is provided inside the treatment tank.

[0007] The water treatment assembly includes a first filter screen and a second filter screen, both of which are disposed inside a treatment tank. An L-shaped plate is fixed to the second filter screen, and the L-shaped plate is disposed on the treatment tank. A support ring is fixed to the treatment tank, and the first filter screen is disposed on the support ring. When there are many impurities on the second filter screen, the second filter screen can be lifted out through the L-shaped plate for cleaning.

[0008] The water treatment assembly also includes a reagent storage tank, on which a metering pump is installed. The metering pump is connected to the treatment tank. The metering pump is an existing device that can meterly deliver the treatment agent in the reagent storage tank into the treatment tank.

[0009] The water treatment assembly also includes a motor, which is located at the bottom of the treatment tank. The output end of the motor extends into the interior of the treatment tank, and a stirring rod is fixed to the output end of the motor. The working motor can drive the stirring rod to rotate, thereby making the wastewater and treatment agent mix evenly.

[0010] It also includes a sedimentation component, which includes a sedimentation tank, an outlet pipe on the sedimentation tank, and an injection pipe connected to the sedimentation tank. The sedimentation component also includes a water pump located between the injection pipe and the treatment tank. The sedimentation tank is also connected to a sewage pipe, which is equipped with a sewage pump and a valve.

[0011] The sedimentation tank is fixed with a top plate, on which are evenly distributed water outlet holes. A drainage weir is fixed on the top surface of the top plate. The clear water after sedimentation flows out from the weir opening, keeping the outflow stable. A limiting cylinder is fixed on the top plate, and the water injection pipe is set inside the limiting cylinder. When wastewater enters the sedimentation tank from the water injection pipe, it will first enter the limiting cylinder, avoiding the impact of the incoming water on the sedimentation of the precipitate and promoting the stability of the sedimentation process.

[0012] This utility model provides a hydroentangled nonwoven fabric water return device, which has the following beneficial effects:

[0013] 1. The spunlace nonwoven fabric water return equipment can filter larger impurities through the first and second filter screens. The wastewater that has been mixed with the treatment agent and produced sediment can be transported to the limiting cylinder through the water injection pipe and water pump. After the wastewater flows downward, it diffuses at the bottom of the sedimentation tank and then flows upward. The sediment settles to the bottom of the sedimentation tank under the action of gravity. The clear water flowing upward is discharged through the water outlet, drainage weir and water outlet pipe, realizing the separation of sediment and clean water. By opening the valve and starting the sewage pump, the sediment at the bottom of the sedimentation tank can be extracted. This device can continuously treat wastewater and clean the sediment without stopping the operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the sedimentation tank of this utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the processing tank of this utility model;

[0017] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Purification mechanism; 101. Processing tank; 102. First filter screen; 103. Second filter screen; 104. L-shaped plate; 105. Reagent storage tank; 106. Support ring; 107. Motor; 108. Stirring rod;

[0020] 2. Sedimentation components; 201. Sedimentation tank; 202. Water injection pipe; 203. Water pump; 204. Sewage pipe; 205. Sewage pump; 206. Limiting cylinder; 207. Top plate; 208. Water outlet; 209. Drainage weir; 210. Valve; 211. Water outlet pipe;

[0021] 3. Water inlet pipe. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0023] Please see Figures 1-4 The present invention proposes the following implementation scheme: a spunlace nonwoven fabric water return device, including a purification mechanism 1, the purification mechanism 1 including a treatment tank 101, and a water treatment component is provided inside the treatment tank 101.

[0024] Please refer to this carefully. Figure 1 and Figure 3 The water treatment component includes a first filter screen 102 and a second filter screen 103. Both the first filter screen 102 and the second filter screen 103 are disposed inside the treatment tank 101. An L-shaped plate 104 is fixed on the second filter screen 103 and is disposed on the treatment tank 101.

[0025] A support ring 106 is fixed on the processing tank 101. The first filter screen 102 is set on the support ring 106. When there are a lot of impurities on the second filter screen 103, the second filter screen 103 can be lifted out by the L-shaped plate 104, and then the second filter screen 103 can be cleaned.

[0026] The water treatment assembly also includes a reagent storage tank 105, which is equipped with a metering pump. The metering pump is connected to the treatment tank 101. The metering pump is an existing device that can meterly deliver the treatment agent in the reagent storage tank 105 into the treatment tank 101.

[0027] The water treatment assembly also includes a motor 107, which is located at the bottom of the treatment tank 101. The output end of the motor 107 extends into the interior of the treatment tank 101, and a stirring rod 108 is fixed to the output end of the motor 107. The working motor 107 can drive the stirring rod 108 to rotate, thereby making the wastewater and treatment agent mix evenly.

[0028] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 It also includes a sedimentation component 2, which includes a sedimentation tank 201, an outlet pipe 211 on the sedimentation tank 201, and an injection pipe 202 connected to the sedimentation tank 201. The sedimentation component 2 also includes a water pump 203 installed between the injection pipe 202 and the treatment tank 101. The sedimentation tank 201 is also connected to a sewage pipe 204, a sewage pump 205 installed on the sewage pipe 204, and a valve 210 installed on the sewage pipe 204.

[0029] A top plate 207 is fixed on the sedimentation tank 201. The top plate 207 has evenly distributed water outlet holes 208. A drainage weir 209 is fixed on the top surface of the top plate 207. The clear water after sedimentation flows out from the weir opening of the drainage weir 209, so that the outflow water remains stable.

[0030] A limiting cylinder 206 is fixed on the top plate 207, and a water injection pipe 202 is set inside the limiting cylinder 206. When wastewater enters the sedimentation tank 201 from the water injection pipe 202, it will first enter the limiting cylinder 206 to avoid the water entering the tank impacting the sedimentation of the sediment, which is conducive to the stability of the sedimentation process.

[0031] Working principle: When treating wastewater, the wastewater is sent to the treatment tank 101 through the inlet pipe 3. Larger impurities in the wastewater can be filtered through the first filter screen 102 and the second filter screen 103. Then, the treatment agent can be quantitatively sent to the treatment tank 101 through the agent storage tank 105. The start of the motor 107 can drive the stirring rod 108 to stir the wastewater and treatment agent in the treatment tank 101, so that the two are fully mixed.

[0032] Next, the mixed wastewater can be transported to the limiting cylinder 206 through the water injection pipe 202 and the water pump 203. After the wastewater flows downward, it diffuses at the bottom of the sedimentation tank 201 and then flows upward. The sediment settles to the bottom of the sedimentation tank 201 under the action of gravity. The clear water flowing upward is discharged through the water outlet 208, the drainage weir 209, and the water outlet pipe 211, thus achieving the separation of sediment and clean water. After a lot of impurities accumulate at the bottom of the sedimentation tank 201, the sediment at the bottom of the sedimentation tank 201 can be extracted by opening the valve 210 and starting the sewage pump 205. This device can continuously treat wastewater and clean the sediment without stopping operation.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydroentangled nonwoven fabric water return device, comprising a purification mechanism (1), characterized in that: The purification mechanism (1) includes a treatment tank (101), and a water treatment component is provided inside the treatment tank (101); It also includes a sedimentation component (2), which includes a sedimentation tank (201) and a water injection pipe (202) connected to the sedimentation tank (201). The sedimentation component (2) also includes a water pump (203) disposed between the water injection pipe (202) and the treatment tank (101). The sedimentation tank (201) is also connected to a drain pipe (204), and a drain pump (205) is installed on the drain pipe (204). The sedimentation tank (201) is fixed with a top plate (207), and the top plate (207) is provided with evenly distributed water outlet holes (208). A limiting cylinder (206) is fixed on the top plate (207), and the water injection pipe (202) is set inside the limiting cylinder (206).

2. The hydroentangled nonwoven fabric hydroentanglement return equipment according to claim 1, characterized in that: A drainage weir (209) is fixed on the top surface of the top plate (207).

3. The hydroentangled nonwoven fabric hydroentanglement return equipment according to claim 1, characterized in that: A valve (210) is installed on the sewage pipe (204), and a water outlet pipe (211) is installed on the sedimentation tank (201).

4. The hydroentangled nonwoven fabric hydroentanglement return equipment according to claim 1, characterized in that: The water treatment assembly includes a first filter screen (102) and a second filter screen (103). Both the first filter screen (102) and the second filter screen (103) are disposed inside the treatment tank (101). An L-shaped plate (104) is fixed on the second filter screen (103). The L-shaped plate (104) is disposed on the treatment tank (101). A support ring (106) is fixed on the treatment tank (101). The first filter screen (102) is disposed on the support ring (106).

5. The hydroentangled nonwoven fabric hydroentanglement return equipment according to claim 4, characterized in that: The water treatment assembly also includes a reagent storage tank (105), which is equipped with a metering pump and is connected to the treatment tank (101).

6. The hydroentangled nonwoven fabric hydroentanglement return equipment according to claim 5, characterized in that: The water treatment assembly also includes a motor (107), which is located at the bottom of the treatment tank (101). The output end of the motor (107) extends into the interior of the treatment tank (101), and a stirring rod (108) is fixed to the output end of the motor (107).