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About Us
Tianjin Xun'er Technology Co., Ltd
Date: 2025-03-12Read: 8
Energy consumption is one of the biggest costs in the textile printing and dyeing industry
The textile printing and dyeing industry has high energy consumption, high investment costs, and complex process flow. It is generally divided into three independent stages: pre-treatment before staining, staining, and post-treatment after staining.
Pre dyeing treatment process:
Pre dyeing treatment, also known as desizing, aims to remove impurities from the fabric, usually duringRolling grooveAdd the desizing solution to the dyeing tank, treat it at a certain temperature, and then wash it with high-temperature water. The entire process requires a large amount of resources such as water, electricity, and steam.
Dyeing treatment process:
Dyeing is carried out by adding auxiliary solvents such as dyes, homogenizers, promoters, fixatives, and soda ash to a dyeing machine at a certain high temperature. Depending on the dye and dyeing machine, the required temperature and treatment time also vary. Some treatment processes also require soap washing or reduction cleaning to consider the dye uptake rate, which needs to be carried out at a high temperature of 100 degrees. This process consumes a large amount of water, electricity, steam, dyes, additives, etc., and generates a large amount of sewage that needs to be treated.
Dyeing post-treatment process:
The post-treatment of dyeing mainly includes sampling and color matching, dehydration, drying, shaping and other processes, which require a large amount of steam consumption. For example, drying needs to be carried out in a drying cylinder dryer.
Water balance testHelps reduce energy consumption
The textile printing and dyeing industry belongs to the three high industries of high energy consumption, high water consumption, and high pollution.The dyeing vat requires a large amount of energy such as water, electricity, and gas during operation. Water balance testing (water-saving diagnosis) is a systematic testing, statistics, and analysis of the water usage of water using units. Through testing, the water usage status of water using units can be comprehensively understood. Based on the measured water usage data, the water balance relationship and reasonable water usage level can be identified, and corresponding measures can be taken to tap into the potential of water use and achieve the goal of strengthening water management and improving the level of reasonable water use. In order to carry out water balance testing smoothly, it is necessary to improve the three-level measuring instruments for unit water use, including water measurement for various water equipment, as well as flow measurement for cooling water, process circulating water, wastewater treatment, and wastewater reuse.
Xun'er Case and Solution
A printing and dyeing enterprise in Shandong requires a steam flow meter on the main gas pipeline of the dyeing tank in the printing and dyeing workshop to measure the total amount of steam in the entire workshop and assess the workshop cost. The dyeing workshop needs to install electromagnetic flow meters for measuring tap water and caustic soda, and the amount of sewage discharged from the entire workshop and entering the factory's sewage treatment plant should also be measured to facilitate separate cost accounting and cost sharing among departments.
After on-site communication with the selection technicians, it was learned that the company's dyeing workshop has 15 high-temperature and high-pressure overflow dyeing machines of various sizes. The dyeing process is as follows: pre-treatment, cold water cooling, water washing, alkali reduction, cold water cooling, water washing, dyeing, cold water cooling, water washing, and fabric removal. The printing and dyeing process is complex and requires the use of a wide variety of dyes, pastes, additives, and other chemicals. Therefore, printing and dyeing wastewater has the characteristics of large water volume, high organic pollutant content, deep color, high alkalinity, and large water quality changes, making it a difficult industrial wastewater to treat. Considering the corrosiveness of printing and dyeing wastewater, we have chosen an alkali resistant electromagnetic flowmeter for our customers to measure the return water, cooling water, and tap water during the production process. The flowmeter is designed to withstand high temperaturesvortex flow meterUsed for measuring steam in dryers and steam pipelines.At present, the customer has put it into operation and provided feedback that the instrument is in good condition, providing a basis for energy conservation and consumption reduction for the enterprise.
Recommended on-site application products
Product Features:
●Suitable for measuring conductive liquids, especially suitable for media such as sewage, chemical solutions, tap water, etc;
●accuracy classLevel 0.5, Level 0.2;
●Low flow velocity measurement, capable of measuring a flow velocity of 0.1m/s;
●The instrument diameter covers DN4~DN2000;
●Equipped with explosion-proof function, with protection levels of IP65 and IP68;
●Multiple communication methods such as RS485, HART, 4G, NB IoT, etc. are available for selection.
Product performance and advantages:
●High sensitivity and accuracy up to ± 1.0%;
●turndown ratioCompletely surpassing traditional vortex streets, with a wide range of flow velocity measurements;
No movable parts, no pressure loss;
Adopting anti-interference circuits and anti vibration sensing heads to filter out external interference;
● Built in temperature and pressure sensors, capable of measuring medium temperature and pressure;
Directly measure steam flow without the need for external temperature and pressure compensation;
● Large screen LCD dual row display, clear and easy to distinguish readings;
● Possess special equipment production license certification.