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Home / Case Studies / OEM Baghouse for Tablet, Pill, and Pharmaceutical Manufacturers

R&D Project: OEM Baghouse for Tablet, Pill, and Pharmaceutical Manufacturers

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Category: Completed R&D Projects
Client
A project company whose client is a pharmaceutical manufacturer specializing in the development and production of tablet formulations.
Production Process
Weighing and sieving of raw materials, tableting and encapsulation, packaging of finished products.
Problem
It is necessary to purify the air from dust generated during the production process.
Current system component
There is no air purification system.
Temperature
Ambient
Gas/Dust
  • Escitalopram oxalate
  • Lactose monohydrate
  • Microcrystalline cellulose
  • Croscarmellose sodium
  • Low molecular weight povidone
  • Corn starch
  • Magnesium stearate
  • Hypromellose
  • Macrogol 400
  • Dimethicone 100
  • Titanium dioxide
  • Spironolactone
  • Lactose
  • Captopril
  • Polyvinylpyrrolidone (PVP)

Initial Data

Client Communication

Client:
Good afternoon,
For the project of the Customer's facility, Production and Warehouse Building No. 2, intended for the placement of finished pharmaceutical production, three cyclones are required.

We need a commercial proposal for the following equipment:
1) System with Cyclone C1 – 4500 m³/hour
Captures air through a local ventilation exhaust in the following rooms:
1.15, 1.16, 1.17, 1.19, 1.21, 6.2, and 6.3
2) System with Cyclone C2 – 3000 m³/hour
Captures air through a local ventilation exhaust in the following rooms:
2.8, 2.9, 2.11, and 2.12
3) System with Cyclone C3 – 2500 m³/hour
Captures air through a local ventilation exhaust in the following rooms:
3.6, 3.13, and 3.14

Dust composition:
Escitalopram oxalate – total waste: 0.05 kg
Lactose monohydrate – total waste: 0.48 kg
Microcrystalline cellulose – total waste: 0.18 kg
Croscarmellose sodium – total waste: 0.033 kg
Low molecular weight povidone – total waste: 0.018 kg
Corn starch – total waste: 0.016 kg
Magnesium stearate – total waste: 0.008 kg
Hypromellose – total waste: 0.03 kg
Macrogol 400 – total waste: 0.005 kg
Dimethicone 100 – total waste: 0.002 kg
Titanium dioxide – total waste: 0.0065 kg
Spironolactone – total waste: 0.1 kg
Lactose – total waste: 0.3 kg
Captopril – total waste: 0.1 kg
Polyvinylpyrrolidone (PVP) – total waste: 0.02 kg
In rooms 1.21, 2.12, and 3.6, three technical processes take place simultaneously, as described in the attached file.
Engineer Torch-Air:
Good afternoon,
It is not possible to select an effective cyclone without knowing the dust particle size. Could you provide this information?
Even knowing the dust particle size, it is difficult to select an effective cyclone in your case, as the concentration of suspended particles in the air is very low. The fewer the particles, the less effective the cyclone operates.
We have successful experience supplying baghouses to your client. Would you consider replacing the cyclones with bag filters? Baghouses have significantly higher efficiency and can capture dust particles as small as 0.2 μm with up to 99.9% efficiency based on laboratory studies.
Attached is a drawing of our company's baghouse, which has been operating at your client's facility for over four years.
Drawing of Our Baghouse
Drawing of Our Baghouse
Client:
Good afternoon,
I have forwarded your message to the customer:
According to the data provided by the technologists, the dust from the process is microscopic (0.25 to 10 μm) and ultramicroscopic (less than 0.25 μm).

↩ Even knowing the dust particle size, it is difficult to select an effective cyclone in your case, as the concentration of suspended particles in the air is very low. The fewer the particles, the less effective the cyclone operates.
Therefore, dust collectors with bag filters should be selected, as they combine the functions of a cyclone and filtration.
Filtration units have a collection hopper and a filter cleaning (purging) system, so we will be using them.

Could you offer us these units?
Engineer Torch-Air:
Good afternoon,
Yes, I will select compact filter models with a pre-cleaning system for your needs.
The filters have an efficiency of up to 99.9% for dust particles as small as 0.2 microns. This is a very high efficiency, and lower values were not measured.
Please clarify if fans are required as part of the system. If so, we would need the resistance of the ductwork before and after the filter, measured in Pascals.
Client:
Fans are required as part of the system. The resistance before the units is 700 Pa, and after the units, it is 100 Pa. The equipment will be installed in a heated room. The room height from slab to slab is 3900 mm.
Drawing
Drawing
Engineer Torch-Air:
Good afternoon,
1. System with Cyclone C1 – 4500 m³/hour
We recommend our modification, Blizzard 5 New.
2. System with Cyclone C2 – 3000 m³/hour
We recommend our modification, Blizzard 3 New.
3. System with Cyclone C3 – 2500 m³/hour
We recommend our modification, Blizzard 3 New.

The fans have been selected with a margin.
We will adjust the height of these filters by reducing the hopper and making a box on wheels, similar to the current setup at your client's facility.
The air discharge to the side will also be implemented.
By the way, these filter modifications are currently in stock, manufactured, and awaiting shipment to clients. You can visit and see them—they look very technologically advanced. We are very proud of these modifications.
Client:
I have just received a response from the customer, quoting:
"We are installing the Blizzard exhaust filtration unit. Please modify the hopper to fit our dimensions and add side entrances."
Engineer Torch-Air:
I am attaching the drawings for the filters, but without the fans for now.
How would you suggest positioning the fans? Should they be placed next to the filters?
Blizzard 3 New
Blizzard 3 New
BLIZZARD 3 NEW

Characteristic

Data

Airflow capacity, m³/h

3000

Filtration area, m²

30

Filter bag material

Polyester

Aerodynamic resistance, Pa

Up to 2000

Maximum vacuum in the casing, Pa

Up to 5000

Operating temperature in the filter, °C

Up to +150. Briefly up to +160, but no more than 5 minutes

Dust concentration at the filter inlet, g/m³

No more than 30

Dust concentration at the filter outlet, mg/m³

No more than 5-10

Compressed air pressure, bar

5-7

Compressed air consumption, l/min

250


Configuration:

Name

Configuration

Steel casing

1 unit

Compressed air receivers

Set

Diaphragm valves for bag cleaning

Set

Filter bags

Set

Dust collection box

1 unit

Filter control panel

1 unit

Operating manual, filter installation manual

Set

Blizzard 5 New
Blizzard 5 New
BLIZZARD 5 NEW

Characteristic

Data

Airflow capacity, m³/h

5000

Filtration area, m²

50

Filter bag material

Polyester

Aerodynamic resistance, Pa

Up to 2000

Maximum vacuum in the casing, Pa

Up to 5000

Operating temperature in the filter, °C

Up to +150. Briefly up to +160, but no more than 5 minutes

Dust concentration at the filter inlet, g/m³

No more than 30

Dust concentration at the filter outlet, mg/m³

No more than 5-10

Compressed air pressure, bar

5-7

Compressed air consumption, l/min

400


Configuration:

Name

Configuration

Steel casing

1 unit

Compressed air receivers

Set

Diaphragm valves for bag cleaning

Set

Filter bags

Set

Dust collection box

1 unit

Filter control panel

1 unit

Operating manual, filter installation manual

Set

Client:
Good afternoon, yes, nearby. We will place everything in one room.
Engineer Torch-Air:
Good afternoon,
The drawings with the fans can be moved to any side, including the fans and ducts.
Blizzard 3 New
Blizzard 3 New
Blizzard 5 New
Blizzard 5 New
Engineer Torch-Air:
Good afternoon,
I have reviewed the drawings. The height is 3900 mm without the screed and other floor coverings. Is it possible to make a version with the cyclone's air intake (discharge) directly on the side, so we don't have to install ducts above it?
Client:
Good afternoon,
The drawings with the fans, as well as the fans and ducts, can be moved to any side.
Blizzard 3 New
Blizzard 3 New
Blizzard 5 New
Blizzard 5 New
Client:
Good afternoon,
Could you also provide the specifications of the selected fans for filling out the data tables and passing the assignments to the electrical department? Additionally, we need the weight load information.

Proposed Solutions

Based on the client’s requirements and the detailed communication, we recommend the following solutions to address the air purification needs at the pharmaceutical facility:

Replacement of Cyclones with Bag Filters

Given the microscopic and ultramicroscopic dust particles (ranging from 0.25 to less than 0.25 μm), a cyclone system would not be effective due to its low efficiency in capturing such small particles. Therefore, we propose the use of advanced bag filters, which provide up to 99.9% efficiency and are capable of capturing particles as small as 0.2 μm.

BLIZZARD 3 NEW SYSTEM
For the 3000 m³/hour air flow requirement, we recommend the Blizzard 3 New baghouse filter. This system will be able to capture dust effectively, providing:
  • Filtration area: 30 m²
  • Maximum vacuum: Up to 5000 Pa
  • Compressed air consumption: 250 l/min
  • Operating temperature range: Up to +150°C (briefly up to +160°C)
The system will be configured with:
  • Steel casing
  • Compressed air receivers
  • Diaphragm valves for bag cleaning
  • Filter bags
  • Dust collection box
  • Filter control panel
BLIZZARD 5 NEW SYSTEM
For the 4500 m³/hour air flow requirement, we recommend the Blizzard 5 New system, designed for higher capacity filtration:
  • Filtration area: 50 m²
  • Maximum vacuum: Up to 5000 Pa
  • Compressed air consumption: 400 l/min
  • Operating temperature range: Up to +150°C (briefly up to +160°C)
This system will be equipped with similar components as the Blizzard 3 New for ease of installation and efficiency.

Customization and Design Adjustments

The height of the filter systems will be adjusted by reducing the hopper and incorporating a box on wheels to accommodate the installation requirements of the client.
The air discharge will be implemented to the side to meet the client’s space requirements, eliminating the need for ducts above the equipment.
The fans will be placed either next to the filters or as per the client’s final preference.

Specifications and Load Information

The required specifications for the fans, including airflow capacity, resistance, and weight load details, will be provided to facilitate the integration with the system. These details will assist the electrical department in making necessary preparations.
This approach ensures optimal dust collection efficiency while meeting the facility's spatial and operational needs.

Conclusion

The baghouses have been in operation since 2022, and during this time, they have demonstrated a high level of air filtration and reliability in operation. The bags in the dust collector have not been changed for 3 years, which is due to the low dust load on the equipment.
The client, starting from the first order, became a loyal and regular customer, which indicates that we produce the best baghouses on the market, meeting the needs of demanding clients and their factories.

The Best Baghouses for the Pharmaceutical Facility

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We always perform precise calculations and offer expert assistance in selecting the optimal dust collection or gas cleaning systems, typically completing this process within 1 to 2 days
Head of Engineering,
Vladimir Nikulin
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