Citric acid extracted from citrus

Citrus contains rich citric acid. In the food industry, citric acid is an indispensable raw material for the manufacture of refreshing beverages and confectionary products. In order to make full use of citrus resources in our province, we can use citric acid as the raw material for fruit drop, lingering fruit and waste fruit. Juicer. The raw material was crushed and squeezed with a squeezer. The residue was moistened with fresh water and squeezed several times to fully squeeze out the citric acid contained. Fermentation. First, dilute the thicker juices and add 1% of the yeast liquid that accounts for the amount of cloudy orange juice. After 4 to 5 days of fermentation is complete, add a small amount of tannins (a food additive), stir and heat to promote the precipitation of colloidal substances. Then the solution was filtered to obtain a clear juice. precipitation. The juice is heated to boiling, and then the pure milk of slaked lime is slowly added, and stirring is continued until the calcium citrate is completely precipitated, and the juice is stopped when the juice is slightly acidic (identify whether the calcium citrate is completely precipitated, and add a little calcium carbonate to the juice. If the bubble no longer shows the reaction is complete). The upper tan liquid was discharged by siphoning, and the precipitated calcium citrate was separated and washed. break down. After the washed calcium citrate is poured into clean water, it is heated to boiling, stirred continuously, and then sulfuric acid with a concentration of 35% is slowly added. The boiled water is then stirred for 30 minutes to decompose the citric acid, which takes about 3 hours, and then the pressing method is used. Calcium sulfate is precipitated and separated, and the filtered citric acid solution is concentrated in vacuum to 40-42 Baume degrees, poured into a wooden crystallization tank, and precipitated by crystallization for 3 to 5 days, and then repeatedly washed and crystallized with cold water, and centrifuged. Machine to remove water, that is, citric acid crude crystal products.

Automatic Granule Packing Machine

This products are widely used in food, medicine, chemicals, seeds, cosmetic, miscellaneous grains, condiments, tea, Chinese Herbal Medicine, pesticides and Other industries in the small bag packaging. It has three-side seal, the four sides sealed, pillow type, triangle bag and other forms of sealing, advanced product configuration, easy operation, the appearance of stainless steel

Introduction

Uses: Suitable for packaging pesticides, veterinary drugs, seeds, Chinese medicine, feed, desiccant, salt, monosodium glutamate, soup, tea and other free-flowing granular products. Replaceable volumetric cups and precise control make the packaging of the product reliable and practical. Volumetric packaging machine with fast, accurate, economical and practical advantages. By changing the heat-sealing structure, the packaging bag can be made into a three-side seal, a four-side seal and a pillow-shaped seal. Users can also choose stainless steel box or ordinary steel box.

 

Features:

1, computer control, using PLC system, easy to operate, stable and reliable operation.

2, stepper motor control bag system, bag high precision.

3, bag stop, seal machine automatically shut down after the open state.

4, automatic tracking color standard, automatic positioning of the bag, fixed length.

Technical Parameters:

Performance

 

Bag size (W * L) Length (L):

50-150 (mm)

Width (W):

50-100 (mm)

Packaging speed

40-80 (bag / min)

Measurement range

1.7-50 (ml)

Measurement accuracy

+-3%

Voltage

380V power supply three-phase four-wire system

Power consumption

1120 (heating 180 * 4)

Machine weight

350 (kg)

Dimensions (L * W * H)

700 * 800 * 1900 (mm3)

Seal type

four sides seal, seal the three sides, pillow seal

Automatic Granule Packing Machine

Automatic Granule Packing Machine,Automatic Weighing Scale,Granule Packing Scale,Seed Packing Machine

SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , http://www.seedgraincleaner.com