Spray Tower Tower Internals Stainless Steel Material 316l Acid Mist
Eliminator
Mist Eliminator and Acid Tower Operation
SO3 and acid mist are other sources of sulfur emissions from acid
plants. Acid mist can be minimized by choosing the right type of
mist eliminator and regularly checking its performance with a stick
test. So as to meet the national acid fog standard. SO 3 can be
minimized by designing and operating an acid column with optimal
packing type, packing depth, and acid flush rate. This minimizes
the passage of unabsorbed SO3 through the filler and remaining in
the exhaust. SO3 is colorless, but reacts immediately upon contact
with moisture in the air, forming a visible plume of white acid
mist.
Common Materials For Mist Eliminator
1. Metals:
Various grades of stainless steel wire, alloy wire, monel, incoloy,
pure titanium wire, pure nickel wire, phosphor bronze wire, brass
wire, galvanized iron wire, etc.
2. Non-metallic:
Polytetrafluoroethylene (F4), polyacetal fluoride (F46) wire,
polypropylene wire (PP), polyethylene wire (PVC), etc.
3. Interweaving of metal wire and non-metallic wire:
Stainless steel mixed with glass fiber, etc.
Mist Eliminator Characteristic
· Simple structure, lightweight.
· High porosity, fewer pressure drops.
· Big surface area, high demisting efficiency.
· Easy installation, operation, and maintenance.
· Long service life.
Types Of Mist Eliminators For Industrial Gases
| Type | Operating mechanism | Assembly | Function | Remarks |
| Settling tank knockout drum | Gravity | Tank (upright or horizontal) | Slowing down the gas flow so much that the settling velocity is
higher than the gas velocity. | Simple, inexpensive apparatus for very gross drops, poor
efficiency, rare use. |
| Fiber filter filtering candle | Mechanical filter | Case with compact packing of fibers on different single or
individual filtering candles | Single drops are brought in touch with the fibers, flow together,
increase and fall down due to gravity. The filtering candle
prevents the passing of droplets while gas flows through. | Voluminous apparatus with very low face velocity and low liquid
loading preferably for very small drops; the danger of clogging and
build-up. |
| Electrostatic precipitator | Electrostatic forces | Case with electrodes | The drops are electro-charged and attracted to the collecting
electrodes. | Complicated, expensive apparatus for extremely fine drops, very
high efficiency, rare use. |
| Cyclone | Mass moment of inertia | Tank with the installation which forces the gas flow to rotate | Based on rotation separation because of varying density, the drops
are eliminated along the tank walls. | Simple and voluminous apparatus for middle-sized drops, good
efficiency, frequent use. |
| Wire mesh | Mass moment of inertia | Tank with a pack of several layers of wire mesh of undulating
wires; compact wire mesh with high porosity | The drops are brought in touch with the wire surface, flow
together, coalesce and fall down due to gravity. | Voluminous apparatus with low face velocities for low liquid
loading and very fine drops, the danger of clogging and build-up. |
| Impingement eliminator | Mass moment of inertia | Tank with a set of profile plates of different types | Gas flow is split up into many single flows and repeatedly
deflected. Due to inertia, the drops cannot follow the flow of the
gas and thus are eliminated on the impingement surfaces. | Small compact construction because of high face velocity, very high
efficiency even for very fine drops, low-pressure drop on
well-formed profiles, and increasing use. |
Mist Eliminator Parameter
| Type | Specification | Surface Area m2/m3 | Free Volume% |
| SP | 40-100 60-150 105-300 140-400 160-400 200-570 | 529.6 | 0.9788 |
| DP | 60-100 80-100 80-150 90-150 150-300 200-400 300-600 | 625.5 | 0.9765 |
| HP | 20-100 30-150 70-400 100-600 170-560 | 403.5 | 0.9839 |
| HR | 33-30 38-40 20-40 26-40 30-40 30-50 48-50 30-60 30-80 50-120 | 291.6 | 0.9832 |
Mist Eliminator Test
Company Profile:
Anping County Hardware Mesh Products Co., Ltd. is located in Anping
County, Hebei Province, known as the "Hometown of Chinese Wire
Mesh". The company is a dedicated manufacturer of wire mesh
demisters. The company has more than 90 sets of knitted mesh
equipment. The wire mesh demister is the main product of our
company. Most of our employees are operation, maintenance, and
installation personnel with practical experience, who can provide
customers with the required engineering consultation and
installation of tank filtration. solution.Nearly 20 years of
experience producing mist eliminator mats, knitted wire mesh, and
other packaging materials.
We have ISO9001 certification and a strict quality control system
in the QC department of the enterprise.
We claim that all mist eliminator pads our customers receive are
qualified and perform flawlessly. We have different specifications.
The filtration fineness can reach 3μm~5μm. In addition to standard
and popular sizes, we can also customize specific applications
according to customer needs.
Through continuous on-the-spot inspections, personal exchanges and
cooperation with customers, and comprehensive discounts and
technical support, we have won strong customer support and praise
during the company's development.
The company's performance has maintained an annual output value
growth rate of 30-40. Our employees pursue the policy of
"enterprising, truth-seeking, rigorous and united", continue to
develop and innovate, take technology as the core, and
wholeheartedly provide you with cost-effective products,
high-quality engineering design, and services.
Welcome customer consultation and I sincerely look forward to
cooperating with you!
