Smearing acid-leaching waste acid recycling device
A technology of acid recovery and acid leaching, applied in the direction of lead-acid battery electrodes, metal material coating technology, etc., can solve the problems of low acid recovery rate, difficult lead sludge treatment, lead sludge and acid solution cannot be treated, etc. , to achieve the effects of not easy lead pollution, good separation and recycling, and low energy consumption
Active Publication Date: 2014-03-19
TIANNENG BATTERY WUHU
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Problems solved by technology
[0002] In the production process of the storage battery, it is necessary to spray acid on the plate. In the process of spraying acid, it is easy to wash off the lead mud on the substrate, and the sulfuric acid and the lead compound in the electrode paste form lead sulfate, which is It can form a dense lead sulfate protective layer on the surface of the lead paste, which can reduce the cracks after the lead paste is cured to a certain extent, but the lead mud washed down is not easy to handle. The previous method is to discharge the lead mud It can be used after sedimentation in the sedimentation tank, but there will be redundant acidic liquid in the lead mud that can be recycled by physical precipitation, the recovery rate of the acid liquid is low, and the lead mud and the acid liquid cannot be treated well
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[0014] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.
[0015] Such as figure 1 As shown, the present invention is a recycling device for waste acid after acid leaching of smears, comprising a collection tank 1 for collecting waste acid, recycling the waste acid after acid leaching of painted plates into the collection tank 1, and collecting the waste acid through pipelines It is sent to the filter 6 for filtering larger particles and inert matter. The height of the collection tank 1 is higher than that of the filter 6. The height difference allows the waste acid in the collection tank 1 to automatically flow into the filter 6 , the outlet of the collecting tank is arranged at the lower end of the collecting tank, and...
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The invention discloses a smearing acid-leaching waste acid recycling device. The smearing acid-leaching waste acid recycling device comprises a collecting slot for collecting waste acid, wherein the collected waste acid is conveyed to a filter for filtering larger particles and insoluble substances by a pipeline; the waste acid passing through the filter is conveyed to a filter press; a lead mud cake and an acid liquid are filtered out by the filter press; a clear acid liquid filtered by the filter press is conveyed to a secondary filter device by the pipeline; the secondary filter device is connected with a material storage barrel for smearing and acid-leaching by the pipeline; and the filtered acid liquid is recycled; the collecting slot is higher than the filter; and the filter press is higher than the secondary filter device. The device disclosed by the invention is simple, reasonable in design and low in energy consumption, so that waste acid and lead dirt are separated and recycled well, thereby effectively removing lead mud in the acid liquid, recycling the acid liquid, reducing waste of resources; and moreover, lead pollution is not easily caused.
Description
technical field [0001] The invention belongs to the field of accumulator manufacturing, and in particular relates to a device for recycling waste acid, in particular to a device for recycling waste acid after leaching smears and reusing it for acid rinsing. Background technique [0002] In the production process of the storage battery, it is necessary to spray acid on the plate. In the process of spraying acid, it is easy to wash off the lead mud on the substrate, and the sulfuric acid and the lead compound in the electrode paste form lead sulfate, which is It can form a dense lead sulfate protective layer on the surface of the lead paste, which can reduce the cracks after the lead paste is cured to a certain extent, but the lead mud washed down is not easy to handle. The previous method is to discharge the lead mud It can be used after sedimentation in the sedimentation tank, but there will be redundant acidic liquid in the lead mud that can be recycled by physical...
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IPC IPC(8): C23C22/86H01M4/20
CPCY02E60/126Y02E60/10
Inventor 卢晓明陈林赵小宝龙洋洋疏江洪
Owner TIANNENG BATTERY WUHU