Unpowered automatic liquid-transferring method in production and evaporation procedures of tanning extracts

A power and process technology, which is applied in the field of unpowered automatic liquid transfer in the evaporation process of tannin extract production, can solve the problem of large energy consumption for liquid transfer, and achieve the effect of reducing energy consumption

Inactive Publication Date: 2014-07-09
陈晓程
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the large energy consumption problem of liquid transfer in the existing tannin extract evaporation process, and provide a non-powered automatic liquid transfer method in the tannin extract production evaporation process

Method used

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  • Unpowered automatic liquid-transferring method in production and evaporation procedures of tanning extracts
  • Unpowered automatic liquid-transferring method in production and evaporation procedures of tanning extracts
  • Unpowered automatic liquid-transferring method in production and evaporation procedures of tanning extracts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The system used in the unpowered automatic liquid transfer method of the extract production evaporation process in this embodiment includes: an extraction liquid storage tank 1, an extraction liquid spiral plate heater 2, an evaporator heating chamber 3, and an evaporator separation chamber 4, Three-effect evaporator 5, first-effect evaporator 5a, second-effect evaporator 5b, third-effect evaporator 5c, water jet condenser 6, scraper-type evaporator 7, steam resistance and drainage tank 8, condensed water storage tank 9 , thick glue tank 10, centrifugal pump 11, see the specific system structure diagram figure 1 . After the tannin extraction liquid enters the extraction liquid storage tank 1, it is pumped into the extraction liquid spiral plate heater 2 through the centrifugal pump 11, and the evaporated tannin extract liquid enters the three-effect evaporator (5) and the scraper type evaporation A four-effect down-flow evaporation system connected with the device (7)....

Embodiment 2

[0022] The system used in the unpowered automatic liquid transfer method of the extract production evaporation process in this example is the same as that described in Example 1. The method of automatic liquid transfer without power during the evaporation process is: there is a liquid level difference of 2 to 3 meters between the three-effect evaporator (5) and the scraper evaporator (7), and at the same time accelerate the boiling cycle speed of the glue in the three-effect evaporator, so that The vacuum degree of the three-effect evaporator is lower than that of the scraper-type evaporator. The vacuum degree of the three-effect evaporator is about -750mm water column, and the vacuum degree of the scraper-type evaporator is about -900mm water column. The vacuum degree and pressure difference between the two The pressure difference power is formed for the 150mm water column, and the glue in the three-effect evaporator is automatically transferred to the scraper evaporator u...

Embodiment 3

[0024] The system used in the unpowered automatic liquid transfer method of the extract production evaporation process in this example is the same as that described in Example 1. The method of automatic liquid transfer without power during the evaporation process is: there is a liquid level difference of 2 to 3 meters between the three-effect evaporator (5) and the scraper evaporator (7), and at the same time accelerate the boiling cycle speed of the glue in the three-effect evaporator, so that The vacuum degree of the three-effect evaporator is lower than that of the scraper-type evaporator. The vacuum degree of the three-effect evaporator is about -900mm water column, and the vacuum degree of the scraper-type evaporator is about -1000mm water column. The vacuum degree and pressure difference between the two The pressure difference power is formed for the 100mm water column, and the glue in the three-effect evaporator is automatically transferred to the scraper type evapor...

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Abstract

The invention relates to the field of tanning extracts and particularly relates to an unpowered automatic liquid-transferring method in the production and evaporation procedures of the tanning extracts. A triple-effect evaporator is connected with a scratching-plate type evaporator to form a quadruple-effect down-flow evaporation system. The unpowered automatic liquid-transferring method is characterized in that liquid-level difference exists between the triple-effect evaporator (5) and the scratching-plate type evaporator (7), and simultaneously the boiling circulation speed of glue solution in the triple-effect evaporator is accelerated, so that the vacuum degree of the triple-effect evaporator is less than that of the scratching plate type evaporator, a water column between the triple-effect evaporator and the scratching plate type evaporator and with the vacuum-degree pressure difference being more than or equal to 100mm forms differential pressure; and glue solution in the triple-effect evaporator is automatically transferred into the scratching type evaporator under the action of pressure difference power. The unpowered automatic liquid-transferring method has the advantages that concentrated glue is suctioned to the scratching type evaporator for further evaporation and concentration from the triple-effect evaporator by utilizing the power formed by vacuum pressure difference, and automatic liquid transferring between the triple-effect evaporator and the scratching-plate type evaporator in the evaporation procedure without mechanical power is realized, so that the energy consumption in the production process of the tanning extracts is reduced and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of tannin extract processing, in particular to a non-powered automatic liquid transfer method in the evaporation process of tannin extract production. Background technique [0002] The evaporators used in my country's extract industry are mainly natural circulation type-external heating multi-effect vacuum evaporation, and double-effect or triple-effect are commonly used. Some domestic tannin extract factories also install a scraper evaporator behind the three-effect evaporator to form a four-effect downstream evaporation system production process. The energy consumption of glue production is further reduced, but the liquid transfer between the three-effect evaporator and the scraper evaporator is generally 10.3 meters from the glue outlet of the three-effect evaporator to the scraper evaporator. After the storage tank (the vacuum degree of the three-effect evaporator is generally -700mm water column), it is tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/26B01D1/22
Inventor 陈晓程王明吉
Owner 陈晓程
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