What is the operation method of spray granulation drying equipment?

In the daily production process, some preparations must be made before the use of the drying equipment. First of all, it is necessary to check whether the connection between the bearing and the sealing part of each device is loose, the lubricating oil condition of each mechanical part, and whether the water, wind, and slurry pipe valve ports are in the required position. Then turn on the power supply to check whether the voltage and instrument are normal, and finally check the amount and concentration of the slurry in the slurry mixing barrel, if there is a problem, it should be eliminated in time.

For the spray granulation dryer, we need to operate in the order of turning on the blower first, the exhaust fan, and then turning on the heating switch. When the temperature of the discharge port reaches our pre-set temperature (usually about 130), we need to start the material pump and dust removal system of the spray pelletizing dryer. If and only when the pump pressure reaches 2MPa, then we can turn on the spray gun for granulation.

During the operation of the spray granulation drying equipment, we need to observe the working condition and atomization of the material pump in time, and clean or replace the nozzle immediately if there is a gun blockage. When the drying equipment is running, we also need to regularly check the operation of each system and receive the material in time, record the process parameters, and pay attention to cleaning the vibrating filter screen. When the drying equipment completes the granulation operation, the heating device should be turned off first, and then the gas engine should be stopped.

Finally, close the lance valve, unscrew the nozzle to replace the lance and do the flushing operation. Make sure that the inlet temperature is reduced to below 100 when the exhaust fan and supply fan are stopped. In addition, there is some finishing work to be done, mainly to clean up the residual material in the drying tower and dust collector, turn off the dust collector and air hammer and the total power supply.

Finally, in the process of using the spray granulation dryer, if there is a sudden power failure, we can first pull out the gas engine to let the tower body cool down naturally, and also open the sewage valve, drain the slurry in the slurry pipeline, and clean the equipment. In case of other emergencies, the equipment should be shut down immediately. This is done by shutting down the blower and pump first, and then the rest of the equipment.

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The operation method of spray granulation drying equipment includes the following steps:

Preparation: Check that the equipment is in good condition, prepare the required raw materials and ensure that the raw materials can be processed by the spray dryer, arrange the work area, and ensure that safety measures have been implemented.

Adjust the parameters of the spray dryer: according to the nature of the raw materials and the processing requirements, adjust the parameters of the spray dryer, such as temperature, nozzle spacing, air inlet speed, discharging speed and spray pressure.

Start the equipment and add the ingredients: Once the equipment and parameters are ready, the spray dryer can be started while adding the raw materials to be processed to the equipment and ensuring that the ingredients are evenly distributed inside the equipment. When adding raw materials, it is necessary to pay attention to the corresponding safety operation procedures to avoid possible accidents and injuries.

Monitor the operation of the equipment: During the operation of the equipment, it is necessary to monitor its operation in time. You can observe the operating status and parameter changes of the equipment by observing the operation panel inside the equipment or the external display screen.

At the same time, it is also necessary to pay attention to the handling of raw materials to ensure that the final product meets the expected requirements.

Stop the device and clean: When the raw material processing is complete, stop the operation of the equipment and clean the residue inside the spray dryer. This is a critical step that has a significant impact on the subsequent use of the equipment and the quality of the product.

During the cleaning process, it is necessary to use the appropriate cleaning agents and tools, and operate in strict accordance with the relevant procedures.

Inspect and maintain your equipment: After using a spray dryer, it needs to be inspected and maintained. This includes checking that the various components of the equipment are working properly, if there are any issues such as wear and tear or malfunction.

At the same time, regular maintenance is required, including the replacement of worn parts, the addition of lubricating oil, etc.

Please note that the above steps are for reference only, and the specific operation needs to be adjusted according to the actual situation. If sensitive or dangerous operations are involved, consult a professional or follow the relevant regulations.

The centrifugal spray dryer has a high degree of automation, easy operation, and excellent products, and is suitable for solutions, emulsions, suspensions, and even liquid materials with viscosity. Centrifugal spray dryer is the use of centrifugal atomizer to dry some liquid materials, is one of the widely used dryers in industrial production. Spray drying is a widely used process in the liquid process forming and drying industry.

It is suitable for the generation of powdered and granular products in solutions, emulsions, suspensions and pumpable lake liquid raw materials. Spray drying is therefore an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape meet precise criteria. Centrifugal Spray Dryer:

It is suitable for chemical, light industry, food, medicine, building materials, environmental protection and other industries. First, the machine can be tested first.

Second, Kegen....

Raw material preparation: First of all, the raw material needs to be inspected and processed in detail to ensure that it is suitable for spray granulation. For some special materials, pretreatment may also be required, such as mixing, crushing, etc.

Spray piston pump operation: The spray piston pump is one of the core equipment in the spray granulation process, which can precisely control the flow of solvent into the nozzle, thus affecting the effect of spraying. The operator needs to adjust the speed of movement of the plunger according to the actual needs to obtain a stable spray process.

Sprayer selection and use: The selection and use of sprayers is also a very critical link. Different sprayers have different atomization effects on the material, so it is necessary to choose the appropriate sprayer according to the characteristics of the material and the actual needs.

During use, make sure that the sprayer is clean and free of clogging to avoid affecting the spray effect.

Rotary spray technology: Rotary spray is a common spray granulation method, especially suitable for the granulation of high-viscosity and high-concentration materials. During the rotary spraying process, the sprayer is placed on a rotating disc and the ejected liquid is rapidly dispersed into fine droplets under the action of centrifugal force, thus forming solid particles.

Piston pump speed control: Piston pump speed control is a key technology, by adjusting the movement speed of the plunger, the flow of material into the nozzle can be accurately controlled. This is especially important for applications that require precise control of particle size and density.

Drying treatment: After spray granulation, the resulting solid particles need to be dried to remove water or other solvents in them. Common drying methods include fluidized bed drying, oven drying, etc.

The operator needs to choose the appropriate drying method according to the characteristics of the material and the actual needs.

Before spray drying, soybeans must be washed and peeled, and non-protein components such as fat reduction must be used to concentrate the most nutritious components of soybeans, and the soybeans can be spray dried after such concentration. The actual process of spray drying is divided into several steps: first, the liquid product is fed into the atomizer, and a high-speed runner in the atomizer atomizes the liquid, so that the product becomes a micro-local particle state mixed with solid and liquid.

In the second step, the atomized particles are directed to a drying chamber with controlled temperature and airflow, and the hot air evaporates the liquid from the particles. In order for the final product to meet the standard, the particles must be exposed to the hot air for just the right amount of time to keep the powder hydrated; At the same time, the state of the drying chamber should be well controlled, because the size of the drying chamber and the air flow conditions will affect the nutrition of the product.

The third and final step in the process is to collect the powder from the gas stream through a separator into a container, so that the resulting final product can be packaged or mixed with other ingredients.

At the end of granulation, the heating device should be turned off first, and the operation of the gas engine should be stopped. Then close the gun valve, replace the gun, unscrew the nozzle and rinse it clean. When the inlet temperature is reduced to below 100 °C, the operation of the blower and exhaust fan can be stopped.

Then clean up the remaining material in the drying tower and dust collector, turn off the dust collector and air hammer, and finally turn off the main power supply to complete the production operation.

In case of emergency, the equipment must be shut down immediately, and the blower and pump should be shut down first. In case of a sudden power failure, the gas engine should be pulled out to cool the tower naturally, and then the blowdown valve should be opened, the slurry in the slurry pipeline should be drained, and the equipment should be cleaned.

1.Pay attention to the amount and speed of adding potions, as well as the atomization, 2The inlet air must be cooled and dehumidified, 3Pay attention to check the installation of antistatic filter bags to ensure the safety of equipment operation, 4Ensure the unobstructed flow of the pressure relief hole, eliminate the best and ensure that the equipment personnel are not harmed.