Recycling and utilization device of neutralization filter pressing dreg and grading machine lime dreg
A technology of a recovery device and a grading device, applied in the direction of solid waste removal, etc., can solve the problems of increased production cost, low utilization rate of lime, and increased amount of lime residue, so as to save production cost, save lime consumption, and reduce processing pressure. Effect
Inactive Publication Date: 2019-01-18
肖忠义
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Problems solved by technology
The lime utilization rate is low, and the production cost increases. Due to the low lime utilization rate, the output of neutralized slag and lime slag increases, which increases the pressure of environmental protection solid waste treatment.
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] see figure 1 and figure 2 , figure 1 It is a structural schematic diagram of a preferred embodiment of the device for recycling press filter residue and classifier lime residue provided by the present invention; figure 2 yes figure 1 The partial structural schematic diagram of the ash recovery and utilization device of the neutralization filter press residue and the lime slag recovery and utilization device of the classifier is shown.
[0021] The...
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The invention provides a recycling and utilization device of neutralization filter pressing dreg and grading machine lime dreg. The recycling and utilization device of the neutralization filter pressing dreg and the grading machine lime dreg comprises a lime dreg grading device, a lime neutralization filter pressing dreg device and a lime recycling device, wherein the lime recycling device is connected with the lime dreg grading device and the lime neutralization filter pressing dreg device respectively; the lime recycling device comprises a graded lime dreg recycling device, a neutralizationfilter pressing lime dreg recycling device and a lime dreg middle treatment device; the lime dreg middle treatment device is connected with a reaction groove. According to the recycling and utilization device of the neutralization filter pressing dreg and the grading machine lime dreg, provided by the invention, the neutralization filter pressing dreg and the lime dreg returned by a grading machine are ground to dreg slurry with the size of 200 meshes through a ball grinding machine and the dreg slurry is pumped into a secondary neutralization tank to neutralize diluted acid, so that the dosage of lime is saved.
Description
technical field [0001] The invention relates to the field of chemical production equipment, in particular to a recycling device for neutralizing filter press residue and classifier lime residue. Background technique [0002] Lime neutralization filter press residue and lime produced in sulfuric acid production dirty acid sewage neutralization process are returned to the lime residue by the classifier after the liming machine. After testing and analysis, the neutralization filter press residue contains GaO: 33.66%, and the lime residue returned by the classifier contains GaO: 54.36 %. As a result, the utilization rate of lime is low, and the production cost increases. Due to the low utilization rate of lime, the amount of neutralized slag and lime slag is increased, which increases the pressure of environmental protection solid waste treatment. [0003] With the rapid development of social economy, industrial waste residues are increasing day by day, which not only puts grea...
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IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00
Inventor 肖忠义
Owner 肖忠义