Ⅰ.. Working principle of horizontal spray tower
Horizontal spray tower is an efficient gas purification equipment, mainly used to treat pollutants in industrial waste gas, such as acid mist, alkali mist, organic gases, and particulate matter.
1. Gas-liquid cross-flow contact
- Exhaust gas introduction: The exhaust gas is introduced into the horizontal tower body through the fan system, usually entering from one side or the middle of the tower body.
- Airflow direction: The exhaust gas flows horizontally in the tower body, perpendicular to the direction of movement of the spray liquid, forming a cross-flow contact.
- Reduce resistance: This horizontal airflow design effectively reduces the system's flow resistance and reduces the fan's energy consumption.
2. Spraying and Absorption
- Sprinkler system: A high-pressure nozzle is set up in the tower to atomize and spray the absorbed liquid (water or chemical reagent) to form fine droplets.
- Function of filler layer: The waste gas passes through the filler layer (such as Ball ring and Lassi ring), and fully contacts the liquid film on the filler surface, increasing the gas-liquid contact area.
- Physical and Chemical Absorption: Pollutants are absorbed or converted into harmless substances through physical adsorption or chemical reactions (such as acid-base neutralization).
3. Defog and emission
- Defogging device: The purified gas passes through the defogging layer (cyclone plate or lascill ring filler) to remove the entrained liquid droplets and prevent secondary contamination.
- Clean emission: The treated gas is discharged from the other side of the tower to meet environmental protection standards.
4. Loop and processing
- Liquid circulation: The spray liquid is collected from the bottom of the tower and is reused after being pressurized by the circulating water pump to reduce operating costs.
- Waste liquid treatment: Change or treat waste liquid regularly to avoid contaminant enrichment and affect purification efficiency.
II. Horizontal Spray Tower Structural Design Analysis
Horizontal spray towers feature a compact design, making them suitable for industrial applications with limited space.
1. Tower Structure
- Shape and Material: Horizontal cylindrical or square structure, made of corrosion-resistant materials (such as PP, FRP, and 304/316 stainless steel).
- Modular Design: Segmented flange connections facilitate transportation and installation, adapting to varying airflow rates.
2. Spray System
- Nozzle Arrangement: Horizontal, multi-layered arrangement ensures uniform liquid coverage and improves gas-liquid contact efficiency.
- Spray Liquid Selection: Water or chemical reagents, such as acid or alkali solutions, are selected based on exhaust gas composition to enhance absorption.
3. Packing Layer
- Packing Type: High-efficiency packing, such as Pall rings and Raschig rings, provides a large surface area and low resistance.
- Layered Design: Multiple layers of packing optimize gas-liquid distribution and prevent clogging and channeling.
4. Demist Layer
- Demister Type: Cyclone plates or Raschig rings effectively remove entrained liquid droplets from the gas.
- Anti-Droplet Entrainment: Ensures that the exhaust gas is droplet-free to prevent corrosion or contamination of downstream equipment.
5. Circulation System
- Circulating Water Tank: Located at the bottom of the tower, it collects the spray liquid and is equipped with level control and pH monitoring.
- Circulating Water Pump: Made of corrosion-resistant materials (such as plastic or stainless steel) to ensure long-term stable operation.
6. Auxiliary Structures
- Inspection Ports and Observation Windows: Transparent inspection windows and inspection ports are provided for easy maintenance and inspection.
- Support and Fixtures: Stable supports and fixtures ensure stable equipment operation.
III. Advantages of horizontal spray tower
- Efficient purification: The purification efficiency reaches more than 90%, suitable for a variety of pollutants.
- Space-saving: Horizontal design, lowered height, suitable for indoor installation.
- Low operating cost: Recycle spray liquid to reduce water consumption and chemical reagent consumption.
- Corrosion resistance: Use corrosion-resistant materials to adapt to acid and alkali environments and have a long service life.
- Convenient maintenance: simple structure, convenient maintenance, and reduced maintenance costs.
IV. Design Key Points
- Waste Gas Parameter Analysis: Determine tower dimensions and packing type based on waste gas composition, concentration, temperature, and flow rate.
- Gas-Liquid Ratio Control: Rationally design the spray liquid flow rate to ensure sufficient contact and absorption.
- Material Selection: Select appropriate tower materials based on their corrosive properties, such as PP and stainless steel.
- Safety Measures: Install explosion-proof devices and gas monitoring to ensure safe operation.
Based on the above analysis, horizontal spray towers, with their high efficiency, compactness, and corrosion resistance, have become essential equipment for industrial waste gas treatment. They are widely applicable in various operating conditions and help companies achieve environmental standards.
| Horizontal spray tower can handle air volume from 5000 - 30000 m³, and can be customized according to actual needs. |
| Serial Number |
Name |
Specification (Length * Width * Height, unit: mm) |
Unit |
Quantity |
Remarks |
| 1 |
Horizontal spray tower (handling air volume: 5000 m³/h) |
2500 (including variable diameter size) * 1200 (excluding water tank size) * 1800 |
Set |
1 |
1. Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements.
2. Empty tower velocity: 1.5 meters per second;
3. Single-layer spray system with 4 × 4-inch spiral nozzles;
4. Single layer of Ø50mm Pall rings packing ≥600mm;
5. Single layer of PP wire mesh mist eliminator ≥200mm;
6. Two Ø500mm transparent tempered glass inspection ports;
7. Inlet/outlet diameter: 400mm;
8. One integrated chemical dosing tank on the side;
9. One drain port, overflow port, manual/automatic float-operated water replenishment system; |
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| - |
Circulation pump |
1.5kw |
Set |
1 |
Vertical acid - and alkali - resistant PP anti - corrosion pump, flow: 169m³/h, lift: 15m, two - stage energy - efficient motor |
| 2 |
Horizontal spray tower (handling air volume: 10000 m³/h) |
3000 (including variable diameter size) * 1500 (excluding water tank size) * 1800 |
Set |
1 |
1) Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements;
2) Empty tower velocity: 1.5 meters per second;
3) One spray layer with six 4-inch spiral nozzles;
4) One layer of Ø50mm Pall rings packing ≥600mm;
5) One layer of PP wire mesh mist eliminator ≥200mm;
6) Two Ø500mm transparent tempered glass inspection ports;
7) Inlet/outlet diameter: ￠600mm;
8) One integrated chemical dosing tank on the side.
9) One drain port, overflow port, manual/automatic float-operated water replenishment system; |
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| - |
Circulation pump |
2.2kw |
Set |
1 |
Vertical acid - and alkali - resistant PP anti - corrosion pump, flow: 24m³/h, lift: 20m, two - stage energy - efficient motor |
| 3 |
Horizontal spray tower (handling air volume: 15000 m³/h) |
3600 (including variable diameter size) * 1500 (excluding water tank size) * 1800 |
Set |
1 |
1. Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements.
2. Empty tower velocity: 1.5 meters per second;
3. Single-layer spray system with 8 1/4-inch spiral nozzles;
4. Single layer of Ø50mm Pall rings packing ≥600mm;
5. Single layer of PP wire mesh mist eliminator ≥200mm;
6. Two Ø500mm transparent tempered glass inspection ports;
7. Inlet/outlet diameter: 700mm;
8. One integrated chemical dosing tank on the side;
9. One drain port, overflow port, manual/automatic float-operated water replenishment system; |
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| - |
Circulation pump |
3.75kw |
Set |
1 |
Vertical acid - and alkali - resistant PP anti - corrosion pump, flow: 28m³/h, lift: 28m, two - stage energy - efficient motor |
| 4 |
Horizontal spray tower (handling air volume: 20000 m³/h) |
4200 (including variable diameter size) * 1500 (excluding water tank size) * 1800 |
Set |
1 |
1) Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements.
2) Empty tower velocity: 1.5 meters per second;
3) One spray layer with 8 1/4-inch spiral nozzles;
4) One layer of Ø50mm Pall rings packing ≥600mm;
5) One layer of PP wire mesh mist eliminator ≥200mm;
6) Two Ø500mm transparent tempered glass inspection ports;
7) Inlet/outlet diameter: 800mm;
8) One integrated chemical dosing tank on the side.
9) One drain port, overflow port, manual/automatic float-operated water replenishment system; |
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Circulation pump |
3.75kw |
Set |
1 |
Vertical Dry-Running PP Corrosion-Resistant Pump
Flow Rate: 28 m³/h
Head: 28 m
Tier 2 Energy Efficiency Motor
Brand: Riyiguobao |
| 5 |
Horizontal spray tower (handling air volume: 25000 m³/h) |
4100 (including variable diameter size) * 2000 (excluding water tank size) * 1900 |
Set |
1 |
1. Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements.
2. Empty tower velocity: 1.5 meters per second;
3. Single-layer spray system with 10 4-inch spiral nozzles;
4. Single layer of Ø50mm Pall rings packing ≥600mm;
5. Single layer of PP wire mesh mist eliminator ≥200mm;
6. Two Ø500mm transparent tempered glass inspection ports;
7. Inlet/outlet diameter: ￠900mm;
8. One integrated chemical dosing tank on the side;
9. One drain port, overflow port, manual/automatic float-operated water replenishment system; |
| - |
Circulation pump |
5.5kw |
Set |
1 |
Vertical acid - and alkali - resistant PP anti - corrosion pump, flow: 38m³/h, lift: 32m, two - stage energy - efficient motor, brand: Rizhao Guobao; |
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| 6 |
Horizontal spray tower (handling air volume: 30000 m³/h) |
4500 (including variable diameter size) * 2000 (excluding water tank size) * 1900 |
Set |
1 |
10. Equipment materials include PP, 304 stainless steel, and FRP, with thicknesses customized to meet specific factory requirements.
11. Empty tower velocity: 1.5 meters per second;
12. Single-layer spray system with 13 4-inch spiral nozzles;
13. Single layer of Ø50mm Pall rings packing ≥600mm;
14. Single layer of PP wire mesh mist eliminator ≥200mm;
15. Two Ø500mm transparent tempered glass inspection ports;
16. Inlet/outlet diameter: ￠1000mm;
17. One integrated chemical dosing tank on the side.
One drain port, overflow port, manual/automatic float-operated water replenishment system; |
| - |
Circulation pump |
7.5kw |
Set |
1 |
Vertical acid - and alkali - resistant PP anti - corrosion pump, flow: 50m³/h, lift: 38m, two - stage energy - efficient motor, brand: Rizhao Guobao; |
| - |
Other specifications
Non-standard customization |
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10 Dec,2025 
