Ventri washer
Ventri Washer
Venturi (Venturi) tail gas scrubber is a high-efficiency wet dust collector. She is widely quoted in fertilizer, phosphate fertilizer, chemical, environmental protection, electric power, medicine, and other industries in tail gas, waste gas absorption, and purification processing.
Venturi scrubber belongs to the wet type dust collector. A wet dust collector, also called a scrubber dust collector, is a device that separates dust particles from the gas stream through the contact and impact between dusty gas and liquid droplets or liquid film. A wet dust collector can purify solid particles of pollutants in the exhaust gas and remove gaseous pollutants (gas absorption), and at the same time, it can also play the role of gas cooling.
Advantages of Ventri Washer
- Simple structure: compact, small volume, small area, low price.
- Wide range of purification: used for both high temperature flue gas cooling, high temperature, high humidity and flammable gas purification, but also can be purified containing micron and submicron dust and easy to be absorbed by the washing liquid of toxic and harmful gases, such as ammonia, sulfur dioxide, hydrogen chloride, sulfuric acid and so on.
Venturi (Venturi) exhaust scrubbers are widely used in
Compound fertilizer
Phosphate fertilizer industry tail gas washing, absorption, cooling.
Power Generation industr
power plant, boiler tail gas desulfurization and dust removal, high temperature cooling absorption.
Chemicals
All kinds of chemical, chemical, toxic gas washing, absorption, neutralization.
Principle of operation and schematic diagram
Venturi tube dust collector utilizes Venturi tube to achieve dust removal effect. It consists of three parts: shrinkage tube, throat tube, and diffusion tube.
- The working process is as follows:
- Dust-containing gas enters the contraction tube, the gas velocity gradually increases, the kinetic energy increases and the static pressure decreases.
- Water is injected through the tiny nozzles around the throat, and is atomized into fine water mist by the high-speed gas flow.
- The low pressure of the throat makes the gas flow reach saturation, the air film on the surface of the dust particles ruptures, and the water mist wets the dust particles.
- Dust particles and water mist particles collision cohesion continue to grow in the diffusion tube.
- The air velocity decreases, and the static pressure rises, which is favorable for trapping large particles.
- Throat air velocity: 50~80 m/s
- Water-vapor ratio: need to maintain an appropriate water-vapor ratio
Notes
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Frequently Asked Questions
1. Installation: After the machine arrives at the factory, it will be installed in conjunction with the process, indicating the elevation and horizontal position, tilted installation, generally tilted at 2-5 degrees (which can be adjusted to make the user’s needs), and the machine bracket and transmission frame even ground angle holes, which can be mounted on rolled condensed soil.
① machinery each base and the foundation between the pad into the deed-shaped mat board thickness should not be greater than 30-35mm;
② the height of the base with the deed-shaped pad to adjust the height of the base to make the base 5 degrees of inclination;
③ After each base is adjusted properly, put the cylinder on the support and adjust the carrier wheel;
④ Install the drive part of the film wrapping machine;
⑤ Be sure that the bracket wheel, transmission device and cylinder are properly adjusted and start pouring cement, and after 8-10 days, start the no-load test run after the cement is solidified;
⑥ Method of adjusting the position of the machine body:
a. On the full length of the left and right sides of the machine body, install two parallel steel wires with a diameter of 0.5-1mm and check the level of the wires with a level meter;
b.Lower two phase hammers tangent to the rolling circle from each rolling circle down the sides of the dryer;
c.Measure the distance from the steel wire to the wire drop to detect the body in the horizontal position;
d. Measure the relative vertical elevation of the two rolling circles to check the position of the machine body in the vertical plane;
e. Use the method of moving the electric torque wheel to adjust the measurement of the two articles c and d, so that the machine body is in the correct position;
2. No-load test run:
1). Uninterrupted no-load for 8 hours, the temperature of each bearing should rise smoothly, and the temperature of the bearing should not be higher than 50 degrees Celsius at the termination of the test run;
2). The noise of gears should be average and should not be high or low;
3). After the test run, the bearings shall be observed without serious wear and abrasion.
A.Starting the machine
1. The following preparations should be made before starting the film wrapping machine;
a. Check and adjust the powder feeding device and protection equipment;
b. All bearings and lubricating devices of friction surfaces should have appropriate quantity of grease;
2. It is forbidden to start the film wrapping machine without checking the film wrapping machine and auxiliary mechanical equipment;
3. The steps to start the film wrapping machine are as follows:
a. Start the motor of the film wrapping machine.
b. Start the feeding and discharging conveying equipment.
B. Stopping
1. The steps to stop the film wrapper are as follows:
A. Stop adding raw material to the wrapper;
B. Turn off the drive motor of the wrapping machine;
C. Stop the equipment for transporting granular materials;
1. Dry grease should be smeared at the gears before starting the machine;
2. Dry grease to be smeared on the surface of rolling belt once in 7 days;
3. Bearing housing to be hit or renewed with new dry grease every three months;
4. Add gear oil once before the reducer is used and replace it every four months thereafter;
Pinion gear is worn, install pinion gear upside down, if both sides are worn, new gear is needed.
The intermediate connection between the large gear and the cylinder is damaged, adjust the connection and make appropriate treatment if necessary.
Clamping roller belt to the side of a concave joint
Clamp the belt to the concave joints with pads or wedges, but beware of over-clamping, which can lead to accidents, but uneven tensioning can cause the machine to jump and vibrate.
Wheel wear Refurbish or replace the wheel according to the degree of wear
Block wheel wear Repair, move, or replace with new block wheel depending on degree of wear
Simple body vibration