A kind of production system of corn pulping fiber

Abstract

The invention relates to a production system of corn pulp addition fibers. The production system comprises a spiral dewaterer for dewatering corn fibers, wherein a fiber outlet of the spiral dewaterer is spirally connected with charging of a first pipe bundle drier through a feeding spiral conveyer, an outlet of the first pipe bundle drier returns materials through a first tee material distribution valve, a discharge opening of the first tee material distribution valve is connected with a second material returning spiral conveyer through a discharging spiral conveyer, and an outlet of the second material returning spiral conveyer, a second discharge opening of the feeding spiral conveyer and an outlet of a first pulp adding valve are connected with a first mixing machine; an outlet of the first mixing machine is spirally connected with the second charging of a second pipe bundle drier; and in like manner, materials after second-class drying are subjected to secondary pulp addition, then the materials after the secondary pulp addition enter a third pipe bundle drier for third-class drying, a material returning ratio is controlled through a third tee material distribution valve, and a discharge opening of the third tee material distribution valve is connected with a corn pulp addition fiber finished product pipe. The production system disclosed by the invention is low in steam consumption and power consumption, high in drying efficiency and good in product quality.

Description

technical field [0001] The invention relates to a production system of corn fiber, in particular to a production system of corn pulped fiber, and belongs to the technical field of corn pulped fiber production. Background technique [0002] The corn starch factory adopts corn soaking and wet grinding production process. The main product is starch, and the by-products include corn gluten powder, corn germ, corn fiber, and corn steep liquor. Corn fiber and corn steep liquor can be mixed together to obtain corn pulp fiber, which is rich in protein and is a good protein feed. [0003] Corn pulping fiber is a feed obtained by mixing and drying corn steep liquor after soaking corn and crushed corn fiber. Since the protein content of corn pulping fiber is more than 18%, it has become a new type of feed widely used by domestic and foreign feed manufacturers. Protein feed raw materials are usually used to replace soybean meal and fish meal in livestock and poultry and aquatic compoun...

AI Technical Summary

Problems solved by technology

Such technique has the following disadvantages: (1) after the corn fiber is dried to a moisture content lower than 12%, a shell will be formed on the surface, and corn steep liquor is added at this time, and the thick corn steep liquor is not easy to penetrate into the corn fiber inside, but Adhesive to the surface of corn fiber, so that the corn fiber is easy to form agglomerates, and the product quality is poor

(2) One-time drying of the corn pulping fiber in place, the steam consumption is large, the drying efficiency is low, and it is not conducive to the cascade utilization of energy

⑶In order to discharge the humidity as quickly as possible, the exhaust air volume of the tube bundle dryer is relatively large, and the opening of the fresh air damper is also relatively large, so that the exhaust gas temperature of the tube bundle dryer is low and the air content is high, which reduces the quality of the exhaust gas and is not conducive to environmental protection. Exhaust gas for waste heat recovery and utilization

(4) At present, in corn starch factories, all corn steep liquor cannot be added to corn fiber, only about 70% of corn steep liquor can be added, and the remaining corn steep liquor can only be sold or discharged to sewage treatment plants

Because of the current process, adding all corn steep liquor, 1 energy consumption is very high, resulting in too high cost of corn pulp fiber

2 The color of corn pulping fiber is very dark, which is difficult to accept in the market

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