Air curtain type cotton flow turning and impurity removing device

Abstract

An air curtain type cotton flow diversion and miscellaneous removal device, including a cotton feeding pipe, a nodding flap, a nodding pipe and a connecting sleeve. The nodding flap is hinged on the connecting sleeve. The plate covers the blanking hole tightly, and the upper end surface of the waste flap coincides with the inner cavity surface of the cotton delivery pipe. A high-pressure air curtain generator is arranged on the upper surface of the cotton delivery pipe. The air pressure of the high-pressure air curtain is greater than that in the cotton delivery pipe. The material conveying air pressure, the noil flap is driven by the rotating mechanism, and the high-pressure air curtain and the noil flap rotating mechanism are controlled by the electric control device. It changes the principle of blocking the cotton flow from the cotton delivery tube to the nodding tube, which can effectively block the problematic cotton flow from entering the nodding tube. It will only fall into the miscellaneous removal box and will not cause a fire. At the same time, the conversion speed of the miscellaneous removal and blanking is fast, which eliminates the hanging at the miscellaneous discharge port and eliminates the risk of systemic fires in the cotton delivery pipe.

Description

Technical field: [0001] The invention relates to the field of textile cleaning and carding equipment, in particular to an impurity remover used in the cleaning process. Background technique: [0002] In industrial production, material flow through pneumatic conveying is very common. For example, in the cleaning process of the textile industry, the purchased cotton bales are first opened, mixed and cleaned, and then carded and slivered. When the cotton fiber is conveyed through the cotton pipeline, when the material contains sparks or metal impurities, it is necessary to remove these impurities through a waste removal device. [0003] At present, most of the existing impurity removers at home and abroad use such as attached Figure 1 ~ Figure 2 The three-way structure shown includes a cotton delivery tube 1, a flap 2 and a blanking tube 3. The blanking tube 3 is arranged below the cotton delivery tube 1, and the blanking tube 3 is connected to the cotton delivery tube 1. The...

AI Technical Summary

Problems solved by technology

[0004] First, poor sealing

[0005] In order to ensure that the flap 2 can rotate flexibly, there must be a certain gap between the flap 2 and the joint between the cotton delivery tube 1 and the feeding tube 3. The gap between the junction of pipe 1 and feeding pipe 3 will cause air leakage in cotton conveying pipe 1, reducing or destroying the air pressure in cotton conveying pipe 1

[0006] Second, it is easy to "hang flowers"

[0007] In the textile cleaning process, the conveyed material is cotton fiber, which has a certain degree of adhesion, and the fiber is easy to hang on the edge of the flap 2. As the fiber continues to hang and accumulate, the accumulated fiber will become more and more over time. The more it is, the longer fiber bundles will be formed, which will affect the pressure of the pipeline, and it will easily cause the flap 2 to not turn over normally, thus affecting the normal work of cotton transportation

[0008] Third, security risks

[0009] When the flap is opened and closed, there will be collisions or scratches between the flap and the cotton delivery tube, which can easily cause sparks due to friction. When the cotton flow contains solid impurities such as metal, the solid impurities and the baffle will There will be collisions or scratches between them, and sparks will also be generated. According to the long-term research of the applicant, the probability of sparks is very high, which is a direct safety hazard for fires

[0010] At the same time, the cleaning process is to loosen the cotton fibers. The long strips of cotton formed at the edge of the flap will affect the wind force of cotton conveying. Rotating machinery, which may easily cause the motor load to increase and burn out. Because the ignition point of cotton is very low, it is easy to cause a fire; even if it does not cause a fire, the long strip of cotton will affect the product quality, and some impurities will enter the subsequent equipment. , will cause great damage to the follow-up equipment, the teeth of the sawtooth binding machine will be damaged, broken teeth, etc.

[0011] To sum up, the turning of the cotton flow is realized through the conversion of the flap. The flap will collide with the pipe body during the conversion process of opening and closing. Impact or scratching will also generate sparks, increasing the risk of fire, and easily causing overload mechanical damage to subsequent machinery

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