Multi-tube dust collector + Water film desulfurization tower combined system

The filter bag cage, also known as bag cage, cage bone, or filter bag frame, is a metal skeleton accessory that supports the filter bag in a bag filter.

Specifically designed for small and medium-sized coal-fired and biomass boilers, it solves the two major problems of "dust removal" and "desulfurization" at one time.

Yixing Haina Environmental Engineering Co., Ltd., relying on 30 years of experience in air pollution control and more than 50 patented technologies, scientifically combines the mature and proven multi-tube dust removal technology with the high - efficiency water film desulfurization technology to provide you with a "cost - performance king" solution.

Industry applications
All kinds of coal-fired and biomass boilers
Steam boilers in industrial fields such as chemical, papermaking, and food industries.

First stage：Ceramic multi-tube dust collector

Core: Efficiently remove large particle dust (>10μm) and intercept sparks, providing protection for the subsequent desulfurization tower.
Working principle: The flue gas enters multiple parallel wear-resistant ceramic cyclones tangentially. Under the action of high - speed rotating centrifugal force, most of the large particle dust, unburned carbon particles, and sparks are completely separated and fall into the ash hopper.

Core value in this combination

Reduce the risk of bag burning: Completely intercept sparks, solving the most headache - inducing "bag burning" problem in biomass boiler treatment.

Reduce the desulfurization burden: Remove most of the coarse particle dust, greatly reducing the dust concentration entering the desulfurization tower and effectively preventing the wear and blockage of the desulfurization tower nozzles and circulating pumps.

Reduce system resistance: The cyclone dust removal mechanism itself has low resistance, laying the foundation for energy conservation of the entire system.

Durable and maintenance - free: There are no power components, and the ceramic inner core is extremely wear - resistant, with a service life of more than 10 years.

Second stage：High - efficiency water film desulfurization tower —— the "core main force" for desulfurization and acid removal

Core mission: Efficiently remove sulfur dioxide (SO₂) and deeply purify fine dust.
Working principle: After pre - dust removal, the flue gas enters the bottom of the desulfurization tower tangentially and fully mixes and contacts with the alkaline slurry (such as lime water/alkali solution) sprayed from the multi - layer nozzles at the upper part of the tower. Acidic substances such as SO₂ are absorbed by the slurry to form neutral salts. At the same time, the water film can also efficiently capture the escaped fine dust (PM2.5).
Core value in this combination:
High - efficiency desulfurization and deep dust removal: The desulfurization efficiency is as high as over 90%, and the coordinated dust removal efficiency can reach 90%, ensuring that the outlet SO₂ and dust meet the standards.
Excellent anti - corrosion performance: The tower body uses our company's core steel lining + granite, which can better resist the corrosion of acidic slurry, and the service life of the main equipment is up to 30 years.

Customer pain points:

Limited investment budget: The cost of a single "bag filter + desulfurization" is high.
Desulfurization tower blockage and wear: The direct entry of dust wears the nozzles, pumps, and pipelines.
Short equipment corrosion life: Ordinary materials cannot resist acid corrosion.

Advantages of the combined solution:

Economical investment cost, it is the most cost - effective solution for small and medium - sized boilers to achieve ultra - low emissions.
Multi - tube pre - dust removal greatly reduces the risk of wear and blockage, and the maintenance cost is greatly reduced.
Heavy - duty anti - corrosion process, the equipment has a service life of up to 30 years, eliminating the trouble of frequent replacement.

Choose Haina, choose long - term peace of mind

We deeply understand that the value of equipment lies in long - term stable operation. We promise:
Accurate design: Accurately calculate and design parameters according to your boiler tonnage and fuel characteristics (sulfur content, moisture).
High - quality manufacturing: The core equipment is independently produced to ensure quality (such as multi - tube ceramic cores and anti - corrosion of the desulfurization tower body).
Professional installation and commissioning: An experienced engineering team ensures that the system performs at its best and helps you pass the environmental protection acceptance at one time.
Perfect after - sales service: A fast - response mechanism provides lifetime technical support and spare parts supply.

Yixing Haina Environmental Engineering Co., Ltd., relying on 30 years of experience in air pollution control and more than 50 patented technologies, scientifically combines the mature and proven multi-tube dust removal technology with the high - efficiency water film desulfurization technology to provide you with a "cost - performance king" solution.

Manufacturing & Production Capacity

After-Sales Service

Haina provides on-site installation, commissioning and technical training.Regular follow-up inspections are arranged after project delivery to support long-term operation stability.