Steam drying equipment for preparing soluble humic acid

Abstract

The invention provides steam drying equipment for preparing soluble humic acid. The steam drying equipment comprises a fixed frame, a steam roller, a liquid material trough and a scraping device; thesteam roller is arranged on the fixed frame and positioned above the liquid material trough; the scraping device comprises a scraping knife, a feeding plate, an extension plate and a connecting piece;the two sides of the scraping knife are correspondingly arranged as a plane and an outwardly convex cambered surface; lug blocks are correspondingly arranged at the left end and the right end of thescraping knife; the bottom end of the scraping knife is fixedly connected with the feeding plate; the outwardly convex cambered surface at the top end of the scraping knife is tangent with the steam roller; the feeding plate is rotatably connected with the extension plate; the extension plate is fixedly connected with the fixed frame; one end of any connecting piece is fixedly connected with the lug block; the other end of the connecting piece is connected with the fixed frame and the position of the connecting piece can be adjusted; and the positions of the two connecting pieces on the fixedframe are adjusted to change the tangent position between the scraping knife and the steam roller. According to the steam drying equipment of the invention, frequent replacement of the scraping knifeis avoided, the time cost and maintenance cost are reduced, and maintenance efficiency of the scraping knife is greatly improved.

Description

technical field [0001] The invention relates to the field of processing equipment for soluble humic acid, in particular to steam drying equipment for the concentrated humic acid solution to be dried after treatment in the production of soluble humic acid. Background technique [0002] Humic acid is a mixture of amorphous polymer compounds containing benzene nucleus, carboxyl group and phenolic group, which is accumulated by a series of processes of animal and plant residues through microbial decomposition and transformation and geochemical processes. Humic acid can be extracted from peat, lignite, weathered coal or certain extracts. The content of humic acid in the extract can be increased by rough processing methods such as physical separation and chemical oxidation, but the obtained raw humic acid powder has no solubility. The processing of soluble humic acid also requires the raw humic acid powder to undergo alkali dissolution and solid-liquid separation, and the liquid ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the scraper replacement problem of the steam drying equipment used for humic acid concentrate in the prior art, the present invention proposes a steam drying equipment for preparing soluble humic acid

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