Farina online digestion method

Abstract

A farina online digestor and a digestion method thereof belong to the field of farinaceous size digestion, and solve the problems that the existing pot-type digestor has a large volume, low automation degree and energy consumption and cannot be continuously produced. The online digestor comprises a steam injection digestor, a farina paste homogeneous tube, a farina paste diluter, a storage barrel and a control cabinet, wherein the steam injection digestor utilizes the high temperature steam to digest the water farinaceous size, and the digested farina paste is output; the farina paste homogeneous tube homogenizes the digested farina paste, and the homogeneous farina paste is output; the farina paste diluter dilutes the homogeneous farina paste, and the finished farina paste is output; the storage barrel stores the finished farina paste; and the control cabinet controls the electric movement of all the parts, and comprises a programmable logic controller (PLC) and a manual controller. The online digestor utilizes the steam injection heating to complete the farina digestion, the volume of the digestor is greatly reduced, and the cost is lowered; the water farinaceous size is directly contacted with the steam, can be used during the digestion, continuous production is realized, the thermal conversion rate is high, and the energy is saved; and the operation control is provided with a PLC control system, so the automation degree is high.

Description

technical field [0001] The invention relates to a starch paste slurry cooking method, in particular to an online starch cooking method. Background technique [0002] In the paper industry, traditional starch paste slurry tank cooking equipment (referred to as starch tank cooking equipment) such as figure 1 As shown, the cooking equipment is composed of a water starch configuration tank 11, a preheating tank 12, a cooking tank 13, a dilution tank 14, and a finished product tank 15. The above tanks are respectively equipped with an agitator MI-M5. The hot tank 12 and the cooking tank 13 are respectively provided with steam coil pipelines G2 and G3, and the tanks are connected by pipelines and delivery pumps P1-P5. [0003] The above-mentioned starch tank type cooking equipment has the following disadvantages: [0004] 1. The volume is huge, so the on-site installation period is long, the pressurization device is unsafe, the plant area is large, the investment is large, and t...

AI Technical Summary

Problems solved by technology

[0005] 2. The degree of automation is low and the requirements for the factory building are high

[0006] 3. The heating tank equipment is bulky and has a large heat capacity, and the heating time for each start is long (nearly 60 minutes)

In order to increase the heat conversion rate, the heating tank must work in a pressurized state, which will increase the pressure resistance level of the pipeline and the heating tank, which will inevitably lead to an increase in equipment investment and many unsafe problems

[0007] 4. This kind of starch tank cooking equipment is a discontinuous production. It takes an hour to process 6 tons of starch slurry, which is time-consuming and wastes energy.

[0008] For this reason, the industry urgently needs starch cooking products that are economical, energy-saving, easy to transform, and highly automated, so as to change the problems of expensive and low thermal efficiency of existing complete sets of starch cooking equipment.

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