Steam Boiler Used In Textile Industry
Manufacturing in the textile industry can be very complicated if the right steam boiler used in textile industry is not installed in the factory.
A high-quality boiler can produce steam quickly, needs less start-up time, and handles steam requirements quickly. All these features are necessary for textile industry production operations.
If you aren’t aware of all these, this article will guide you and help you choose the right steam boiler for the textile industry.
What Are The Roles Of Steam Boilers Used In Textile Manufacturing?
Numerous integral roles use water and steam in the textile manufacturing process.
Pre-treatment
This is the most essential phase in the processing of textiles. It includes preparing raw materials for dyeing and finishing. This process involves removing impurities or dirt from the fabric’s quality to ensure good products. Throughout the pre-treatment, steam and hot water are used in pure form. For that, a small industrial boiler can be very helpful.
Dyeing
The dyeing process in the textile industry involves adding pigments or dyes to the fabric that can give in colors. This works well for distinct fabrics, including:
- Synthetic fabric
- Silk
- Wool
- Nylon
- Jute
- Rayon
- cotton
This process usually happens during textile fiber, woven fabric stages, or yarn production. It is hugely important as it gives the fabric the desired look. Also, these processes are impossible without a steam boiler used in the textile industry. Transferring the dye to the fabric involves a large amount of heat and moisture that the industry gets from the steam.
Numerous factors depend on the fabric and color when dyeing textiles. Yet, steam boilers allow for the adjustment of steam according to the specific temperature needs of the fabric. Eventually, the textile sector can produce many fabrics with the help of steam boilers used in the textile industry.
Printing
Printing is very similar to dyeing. The main difference between the two stages is that in dyeing, there is a uniform color over a sheet or several sheets. However, different designs and patterns are added to the fabrics when printing. The printing process uses several methods, depending on the fabric and the desired output. However, steam is a standard process in textile printing. Boilers help provide a specific amount of heat and moisture to the fabric, allowing the print to remain on the fabric for longer.
Finishing
After making and dyeing the fabric, finishing is a necessary process that also involves using steam. This process is necessary to remove wrinkles from the fabric before sending it away for sale. Certain fabrics make steam an ideal method for finishing. So, a reliable boiler can be very fruitful for the textile sector.
Features Of Steam Boilers Used In Textile Industry
Steam boiler used in textile industry requires provident installation and are the most favored, simple, and conservation-free. These boilers do not emit any pollutants, which makes them environmentally friendly. There are many other features, too, but the most crucial ones are helpful in the textile industry.
- There is no need to store energy for the textile process.
- It is eco-friendly, which makes it suitable for the textile industry.
- Steam boiler used in textile industry don’t require a fireplace or separate boiler house.
- Hot water products and instant brume correlated with the canvas and gas boiler.
- It is a clean and quiet process as there is not much disposal.
- It has a hassle-free operation and low conservation time.
- These are high-efficiency boilers with an effectiveness of 98%.
Properties That Steam Provides To Textile Fibers
- Shrinkage resistance
- Dimensional stability
- Corrugation resistance
- Luminosity
- Paint affinity
- Dye absorption capacity
- Improving weaving and knitting performance
How To Choose A Steam Boiler For A Textile Industry?
Steam boiler used in textile industry can facilitate the efficiency and productivity of the textile industry. But it can only happen if the boiler selection is considered wisely. There are a few factors that need extra attention when investing in a steam boiler used in textile industry. Here are those factors:
Flexibility
It is essential to consider when selecting a steam boiler used in textile industry, especially if running a large-scale textile factory. Steam requirements differ according to the fabric’s needs, so the supply fluctuates daily.
So, steam boiler used in textile industry must turn off when the steam is unnecessary, saving fuel costs. When the need for the steam boiler rises, it should be quick to start and reach its full potential in less time, helping boost production speed.
Conventional fire tube boilers do not usually provide greater flexibility. They have a longer warm-up time and cool-down period that cause wastage. A good option can be water tube boilers. They take a few minutes to start and can quickly shift according to the fluctuating demand.
Ease Of Maintenance
It is the most crucial aspect that is often overlooked. If the boiler breaks down, it can hinder the whole manufacturing process in the textile sector, preventing you from maintaining productivity. To avoid this, the boiler you choose should be able to self-diagnose and enhance monitoring so that small problems can be solved as they arise.
Fuel Efficiency
Fuel efficiency is crucial as the textile industry demands fluctuating steam quantity. Without this feature, manufacturing will not be cost-effective in the long run. Therefore, it is necessary to check out for the boiler efficiency and fuel consumption before purchasing a model.
Heating Medium
The heating system and the demand for mediums should be considered according to the industry’s heating mode. Therefore, most mills use steam boiler used in textile industry to cater to the demand for steam in this sector.
Heating Parameter
The heating parameters of the room where the boiler is available should follow the generator’s capacity. The difference between the boiler-rated outlet pressure and the temperature is substantial. It can result in lower thermal efficiency at higher investment.
Capacity
The boiler capacity means how much steam is required for the textile industry’s power and manufacturing processes. This capacity should rely on the heating load curve. It includes the available used waste heat, the self-used heat of the boiler room, and the heat loss in pipelines. The calculation should hinge on the maximum thermal consumption per hour.
What Areas Require Optimization For The Steam Boilers Used In Textile Industry?
Optimizing Steam boiler used in textile industry means eliminating excess steam. It must also identify the efficient use of steam boilers in the textile industry. Repairing insulating equipment and steam leaks is integral to this optimization.
As the textile industry is an energy incentive industry with rising costs and competition, efficient utility management is a major focus.
Heat loss can be reduced by optimizing these parts, and performance improvement can directly impact production and other processes in the textile sector. The four areas are as follows:
- Boiler blow down
- Steam traps
- Steam leakage
- Condensate recovery
Steam Boiler Used In Textile Industry Boiler Blow Down
When the water boils, it generates steam. Any dissolved solids from the feedwater remain in the boiler during this process. As the amount of solids in the feedwater rises, it will concentrate and reach a point where their solubility is impossible. The aftermath of that will be the deposition from the solution. Additionally, after a specific concentration level, foaming starts, which causes the water to be carried into the steam.
Carryover is any solid that leaves the boiler with steam. These solids will be deposited in different valves of the steam boiler used in the textile industry. As a result, it will affect the product quality of the textile sector. Moreover, the steam turbines will also be damaged due to carryover, reducing efficiency.
Accordingly, it is essential to control the solids’ concentration level. It can get fetched by the process of blowdown. This is where a specific volume of the water blows off and is eventually replaced by the feed water to maintain an optimum level of TDS, that is, total dissolved solids.
However, a blowdown can be a source of significant heat loss if not properly carried out. Plus, manually tracking TDS is time-consuming. Therefore, conductivity measurements assist in monitoring TDS. A rise in conductivity indicates that the contamination level in the water is rising.
Another way to manage the contamination is by reducing the blowdown rate. This will reduce the energy loss because the steam and blown-down liquid temperature will be similar. Further, the minimum blowdown rate will also lower chemical treatment costs and make-up water. Ultimately, proper management blowdowns will lessen the chances of boiler water carryover, formation of deposits, and wastage of chemicals, water, and energy.
Steam Traps
Steam traps are automatic valves that filter out non-condensable gases like air without steam and condensate, condensed steam, to escape. In the textile industry, steam is the driving force of numerous mechanical applications. Steam traps prevent heat loss in such applications.
These traps remove the condensate to increase the latent heat in the steam quicker and better. They are carried out within the steam lines to avoid water hammering. Usually, the trap inspection happens once a year, but the problem is that failure can occur on a day-to-day basis. If undetected, they can inflict system irregularities and cause severe problems and losses.
Standardized steam trap installation in the steam boiler used in the textile industry can reduce the chances of failure. The reason for most faults in steam traps is their incorrect installation. To avoid this, the user should consider the following factors.
- Proper trap size
- Operating designs
- Characteristics of traps
Proper sizing will help ensure efficient steam trap operation. However, correct operation design and installation can still be problematic if the trap size is inaccurate. This can cause condensation to back up or excessive steam loss into the return system. Therefore, with professional recommendations, you can select the correct size steam trap from numerous operating characteristics.
Steam Leakage
A steam leak can cause both latent and sensible energy loss. Generally, greater attention will be paid to the problems and the costs associated with the loss of steam. Compared to compressed air leaks, steam leaks cause more significant energy loss.
Around 19% of the overall energy consumption can contribute to the loss due to leaks in the condensate system. Correcting condensate and steam leaks can be very beneficial for the textile industry. As these programs correct the leaks without any expending capital.
Condensate Recovery
Condensate recovery involves restoring and reusing discharged condensate to save resources and energy. The heat energy consists of sensible and latent heat, where the latent heat uses many steam-using applications.
However, the heat contained in condensate is 20% to 30% of the total steam heat. For maximum equipment efficiency, the condensate should be discharged as quickly as possible. In fact, the higher the discharge temperature, the more efficient the equipment will be.
When the water is first heated to its boiling point, it produces sensible heat. Then, from the boiling point to vaporization, there is latent heat. If the steam loses its latent heat, it converts back to the liquid state, becoming condensate. Using this sensible heat in the condensate is better to help conserve energy resources. For example, if this discharged condensate feeds back into the steam boiler used in textile industry, fuel consumption will fall.
It is necessary to ensure that the boiler’s condensate recovery system works perfectly. Some plants are unable to recover the condensate due to worn-out pipes and pumps. It leads to greater consumption of fuel, water, and energy. If properly repaired, it can provide more than 15% of recovered condensate.
How To Improve Efficiency Of Steam Boilers?
Steam boiler efficiency means refining the boiler’s operation overall to make the best use of heat in energy-intensive industries like textiles. In commercial boilers, optimization can enlighten the applications of systems and process automation along with improved operating practices. The following methods can help achieve this goal.
- Feed water management
- Steam trap management
- Condensate recovery
- Automatic blow down
Feed Water Management
The boiler’s feed tank contains feed water and makeup water along with the condensate that returns to the boiler. It is crucial that the water inside the feed tank is kept at a certain temperature to minimize dissolved gases such as oxygen. In fact, this rise in temperature can also increase efficiency by reducing fuel consumption.
The feed water fulfills the boiler’s water requirements without interrupting the make-up water supply. Traditionally, the feed tank should store water for an hour at maximum boiler evaporation.
For larger steam boiler used in textile industry, this may be impractical. Thus, such steam boiler used in textile industry have smaller feed tanks with cold water storage as a backup. That would be sufficient for making up for any surge in the rate of condensate return. With proper management of feedwater, there can be continuous replacement of feedwater during the steam generation process.
Steam Trap Management
Steam traps are significant in maintaining consistent and efficient transportation of steam throughout the textile industry. These traps work by removing any moisture from the steam line which prevents condensation. This prevention helps in minimizing heat loss and fuel consumption. Otherwise, the failed traps can cause the steam to escape into the condensation system.
Around 15% to 30% of the traps fail in the steam boiler used in the textile industry as proper care is not provided. The two things that should be the focus of the operators are:
- Replacing the failed or worn-out steam traps as soon as possible.
- There should be a common distance between each trap of around 25 meters.
The best practice is to carry out monthly testing and inspection to detect defects as soon as possible. There are no associated expenses with such replacement, and all expenses incurred are covered within a month.
Condensate Recovery
As the steam moves around various processes inside the textile industry, it condensates that high-quality hot water. Without contamination, this condensate is ideal for steam generation. However, in reality, all condensation is impossible to return. Some of it got lost during applications such as steam injection and humidification.
Therefore, make-up water is available to maintain specific water levels inside the boilers. If attention is given correctly to condensate recovery, the quantity of makeup water can be reduced. This also results in lower disposal costs for the textile sector.
Automatic Blow Down
High or low-pressure probes with automatic blowdown help to measure conductivity. These connectivity probes give feedback to the controller, further comparing the conductivity with set values. The automatic blowdown system optimizes the surface blowdown rate by managing the volume of water discharge and concentration of dissolved solids present. The optimum blowdown rate depends on the following factors:
- Boiler type
- Operating pressure
- Water treatment
- Makeup water quality
Conclusion
The quality and durability of a steam boiler used in textile industry have a decisive effect on the production quality of dyeing and drying of the textile mill. As the consumption of steam is usually high in textile mills, coal boiler should not only produce quality steam. But it should also be production efficient and should last a long time.
We have been manufacturing steam boilers used in textile industry for more than two decades. With our experience, we can analyze the energy requirements of your industry and help you make a worthwhile investment for the factory. You can contact us now and we will be happy to help you out.