Stable and safe electrolyte injection device

Abstract

The invention discloses a stable and safe electrolyte injection device. The device comprises a pneumatic metering pump, a liquid inlet and a liquid outlet are formed in the pneumatic metering pump, one-way valves are arranged at the positions of the liquid inlet and the liquid outlet, a pneumatic adjusting throttle valve is arranged between the pneumatic metering pump and an air source, the liquid inlet is connected with a liquid storage tank, the liquid outlet is connected with a liquid outlet pipe, the liquid outlet pipe is connected with a liquid injection head, and a plurality of injection holes are arranged on the liquid injection head, and the injection holes are arranged obliquely outward from an inlet to an outlet. According to the Stable and safe electrolyte injection device, during liquid injection, liquid is directly injected into the inner wall of the paper tube of a diaphragm tube, a positive electrode ring absorbs the liquid quickly, the amount of the flow-state electrolyte at the bottom of the paper tube is reduced, and meanwhile, backlash and splash are eradicated, the air supply amount is kept stable by utilizing the pneumatic adjusting throttle valve.

Description

technical field [0001] The invention belongs to an electrolytic solution injecting device, and more specifically relates to a device for injecting potassium hydroxide solution into a diaphragm tube on an alkaline battery production line. Background technique [0002] The electrolyte of the alkaline manganese battery is an alkaline solution with a certain concentration, which is stirred and mixed with potassium hydroxide, zinc oxide and deionized water. The water in the solution provides material guarantee for the discharge performance of the battery, and the metal ions in the solution pass through the diaphragm. It plays the role of transmission and conductivity between the positive and negative electrodes, so adding an appropriate amount of electrolyte in the limited space of the battery is one of the key factors for making a good battery. The stability and safety of the liquid injection equipment is an important requirement to ensure that the electrolyte injection state me...

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Problems solved by technology

[0003] At present, the alkaline manganese battery production line often has alkaline liquid polluting the battery in the electrolyte injection process. On the one hand, the reason is that the electrolyte injection pump of the liquid injection machine is a Haiba pneumatic metering pump. In the state of liquid injection, there are often phenomena such as splashing of electrolyte, dripping, and unstable liquid injection during liquid injection, resulting in serious pollution of the steel shell body and mouth. Due to the unstable state of liquid injection in each shift, the liquid injection volume does not meet the process Requirements, the injection pump needs to be adjusted 3-5 times, seriously affecting production efficiency and product quality

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