Method and device for automatically controlling discharging amount of waste plastics

A technology of waste plastics and output volume, which is applied in the direction of conveyor objects, transportation and packaging, etc., and can solve the problems of low weighing efficiency and inaccurate weighing

Inactive Publication Date: 2013-10-09
福建三宏再生资源科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method and equipment for automatically controlling the output of waste plastics, the

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  • Method and device for automatically controlling discharging amount of waste plastics

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[0021] The method for automatically controlling the output of waste plastics includes the following steps:

[0022] 1) Pre-set the feed volume of the silo and the discharge speed of waste plastics in the silo through the controller.

[0023] 2) Feed into the silo, stop feeding into it when it reaches the preset feeding amount, and weigh the gross weight of the silo.

[0024] 3) The controller prompts the silo to perform the unloading operation, and calculates the change in the gross weight of the silo within a certain period of time, and calculates the actual average of the discharging speed of the waste plastics in the silo during the time according to the change. The actual average value is compared with the preset value of the discharging speed and the feedback signal is obtained.

[0025] 4) According to the feedback signal obtained, it is sent to the controller to prompt it to control the discharge speed of waste plastics in the silo. When the actual average value is equal to the...

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Abstract

Provided is a method and device for automatically controlling the discharging amount of waste plastics. The method comprises the following steps that (1) the feeding amount of a stock bin and the discharging speed of the waste plastics in the stock bin are preset through a controller; (2) materials are fed into the stock bin, feeding is stopped when the preset feeding amount is reached, and the gross weight of the stock bin is weighed; (3) the stock bin is made to conduct blanking operation through the controller, the variable quantity of the gross weight of the stock bin is calculated within a certain period, the actual average value of the discharging speed of the waste plastics inside the stock bin in the period is calculated according to the variable quantity, and the actual average value and the preset value of the preset discharging speed are compared to obtain feedback signals; (4) the feedback signals are conveyed to the controller, and the controller is made to control the discharging speed of the waste plastics inside the stock bin. According to the method and device for automatically controlling the discharging amount of the waste plastics, the weighing mode is used, the discharging amount of the needed wasted plastics can be accurately controlled, weighing is accurate, efficiency is high, and the quality of products is guaranteed.

Description

technical field [0001] The invention relates to the field of material weighing, in particular to a method and equipment for automatically controlling the output of waste plastics. Background technique [0002] With the increasingly fierce market competition and the development of regeneration technology, the production of polypropylene fiber has gradually departed from the production method of using petroleum as raw material, but using waste plastics instead of petroleum as raw material, which not only greatly reduces the production cost of enterprises, but also reduces environmental pollution. [0003] At present, in the production of polypropylene, it is necessary to batch one or several kinds of waste plastics, which requires weighing a certain amount of waste plastics and sending them to the batching device for batching, so as to ensure the quality of polypropylene. In the existing polypropylene production, enterprises generally use manual weighing methods for weighing ...

Claims

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Application Information

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IPC IPC(8): B65G47/19
Inventor 张振文沈来勇苏清阅
Owner 福建三宏再生资源科技有限公司
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