Energy-saving and environment-friendly comprehensive utilization method of tea resources

An energy-saving, environmental-friendly, tea technology, applied in tea extraction, biofuels, waste fuels, etc., can solve the problems of unresolved tea residue utilization, eutrophication, etc., to reduce production costs and environmental pollution, fully burn environmentally friendly, reduce The effect of environmental protection investment

Active Publication Date: 2016-01-06
南京融点食品科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Although the tea residue is treated, it only reduces its waste. If there is too much tea residue, it can only be used as a fertilizer additive. The alkaloid residue in the tea residue will lead to eutrophication of the soil and water, so it has not really been solved. The problem of using tea residue

Method used

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  • Energy-saving and environment-friendly comprehensive utilization method of tea resources

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Effect test

Embodiment 1

[0033] Take 10 tons of green broken tea raw materials and add 170 tons of hot water at 93°C for countercurrent extraction for 30 minutes. After the extraction is completed, it is filtered into two parts: tea water and tea residues through a belt filter. ton; the tea residue part is first squeezed to a moisture content of 58wt% (pressing pressure 1.3Mpa, pressing time 30 minutes) by a diaphragm type plate and frame filter press, and then dried by a three-return drum dryer to a moisture content of 15wt% (drying). The air inlet temperature is 480° C., and the drying time is 12 minutes), and 7.05 tons of dried tea residues are obtained; the dried tea residues are mixed into the dirt that is squeezed by the diaphragm filter press to 70wt% (pressing pressure 1.4Mpa, pressing time 30 minutes). 0.47 tons of mud, and then the mixture was extruded into Φ8mm cylindrical pellets through a ring die pellet machine, and 7.46 tons of biomass pellet fuel was obtained, and the detected thermal c...

Embodiment 2

[0035] Take 20 tons of black tea raw materials and add 360 tons of hot water at 92°C for countercurrent extraction for 25 minutes. After the extraction is completed, it is filtered into two parts, tea water and tea residue, through a belt filter. The tea water part is passed through the subsequent instant tea production line to obtain 4.85 tons of instant tea powder; The tea residue is first pressed by a diaphragm type plate and frame filter press to a moisture content of 60wt% (pressing pressure 1.3Mpa, pressing time 28 minutes), and then dried by a three-pass drum dryer to a moisture content of 17wt% (drying air intake). The temperature is 450°C, and the drying time is 10 minutes) to obtain 14.3 tons of dried tea residues; the dried tea residues are mixed into the sludge of 0.9 wt. ton, and then extruded the mixture into Φ10mm cylindrical granules through a ring die pellet machine, and obtained 15 tons of biomass pellet fuel, which was tested to be 4880 kcal / kg; another 360 t...

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Abstract

The invention discloses an energy-saving and environment-friendly comprehensive utilization method for tea resources. The energy-saving and environment-friendly comprehensive utilization method comprises the following steps: (1), taking tea raw materials, and extracting by hot water to obtain a tea water part and a tea residue part after solid-liquid separation; (2), preparing the tea water part into an instant tea product through an instant tea production line, wherein wastewater is generated in a production process; (3), carrying out sewage treatment onto the wastewater, separating clear water which reaches emission standards and sludge after the treatment, and discharging clear water; (4), drying the sludge through pressing by a diaphragm type plate-and-frame filter press; (5), drying the tea residue part obtained in the step (1) through pressing by the diaphragm type plate-and-frame filter press; (6), placing the dried tea residue into a three-pass stoke roller dryer for drying; (7), carrying out extrusion forming on the dried sludge obtained in the step (4) and the dried tea residue obtained in the step (6) by a ring-mould granulator after mixing to obtain a tea residue biomass particle fuel; and (8), using the tea residue biomass particle fuel as a fuel for a biomass water heater and a biomass hot air furnace.

Description

technical field [0001] The invention relates to a tea resource utilization method, in particular to a comprehensive utilization method for energy conservation and environmental protection of tea resources for instant tea production. Background technique [0002] The instant tea production process generally uses hot water to extract tea raw materials, which requires energy to heat hot water. Currently, the energy used is mainly coal, oil, natural gas and other fossil energy, which not only increases production costs but also causes environmental pollution; the production of remaining tea leaves At present, the residue is mainly used for organic fertilizer and feed, but the demand is limited, which is not enough to cope with the production of tea residues, so it will cause the accumulation of tea residues and pollute the environment. It is necessary to use coal, oil, natural gas and other energy sources for mixed incineration, and the combustion process is not sufficient, resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/44A23F3/16
CPCY02E50/10Y02E50/30
Inventor 邵增琅岳鹏翔钟亮唐杏燕
Owner 南京融点食品科技有限公司
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