Bags blasts

Types of bags blasts

The engineering and manufacturing process of bags blasts encompasses a variety of methods and types of blasts. The main purpose of all these types is to remove the contaminants on the surface thoroughly. The most common kind of abrasive blasting is pressure blasting. In this type of the blasting, the media is accelerated through a blast nozzle with the help of air pressure. This is very efficient and suitable for larger areas. Other methods include suction blasting, which is also known as siphon blasting; wet abrasive blasting, which uses water to reduce dust and temperature; and manual blasting cabinets.

• Pressure blasting: Pressure blasting utilizes compressed air to propel blasting media at a surface. A consistent coating removal or surface preparation is achieved by this forceful method. It is more suitable for bigger surfaces and more sturdy materials. Some common pressure blasting types are gravity blasting, also known as hopper blaster blasting, suction blasting and wet abrasive blasting.
• Gravity blasting: It is also known as hopper blasting. It is the most common form of blasting. In this method, the metal surface gets hit by the blasting media that falls down in a nozzle's direction. Gravity blasting works nicely on flat surfaces and parts with little geometric complexity. However, a nozzle with a sizable inner diameter is required to accommodate oversize media for good coverage and a sufficient volume of media to fall through.
• Suction blasting: It is also known as siphon blasting. This method uses air pressure to pull the blasting media to the nozzle. The media will be pushed out from the nozzle due to the air pressure and the force that media has created. Air pressure is usually used to perform this kind of abrasive blasting in the home environments of people. That makes it one of the most common types.
• Wet abrasive blasting: This kind of blasting integrates water and abrasive together to make a slurry that will be pumped to the blasting nozzle. The pressure of water against the surface will push the abrasive material to the surface to remove the contaminant. It is also known the hydro blasting or abrasive slurry blasting. Combining water and abrasive blasting media can eliminate dust, lower the temperature and have a cooling effect.
• Manual blasting cabinets: This kind of abrasive blasting is more typical in home settings. In a blasting cabinet, the items to be blasted are placed in an enclosed space to contain the media and dust. The operator then uses gloves to manually move the blasting nozzle around the parts to remove the contaminants. This abrasive blasting method often uses suction as the blasting media moving method. Because of this reason, blasting cabinets have a smaller size, and the holes they make are also smaller.

Specifications and maintenance of bag blasts

The main function of a bag blast is to clean and remove residual product from the bags through a jet of compressed air. The following are some standard specifications of the bags:

• Construction material

  Normally made of steel or stainless steel, any seven alloys with at least 12% chromium, which is more than in ordinary steels, create a layer of chromium oxide that helps prevent corrosion. This is significant because the food will always be in contact with the machine and may get contaminated. For low-temperature situations, carbon steel or mild steel can be used, although it is susceptible to rusting in humid conditions.

• Filtration area and dimensions

  The size and area of the filters in the bag blast affect the purified air's flow and pressure. These dimensions directly relate to the number of bags in the machine. The typical dimensions are a height of 1,250 mm, a depth of 900 mm, and a width of 600 mm, with a bag quantity of 6 and a filtration area of 5.5 m2.

• Pulse mechanism

  A solenoid valve controls the pulse of compressed air in the bag blast. This valve's function is to control the amount of compressed air released and the time it takes to release it, known as the blow pulse duration. Normal valves used here are G ¼, 3/8, or ½, but the size may change in different machines. For example, the G ½ solenoid valve part number in one machine is HDP-601-1J/24 HDP.

• Dust hopper volume

  When the filtering bags collect the dust from the air, it falls into the dust hopper. The volume of the dust hopper vary from 50-100L. Because of the capacity of the dust container, when it is full, the blast bag must be emptied.

• Fan type and motor strength

  A bag blast's motor strength is usually 3HP or more. The fans may be internal or external, and the normal speed is 2800 RPM. The fan is permanently lubricated with grease so that it does not require additional maintenance.

Maintenance

The bag blasts must be maintained as mentioned because improper maintenance can shorten the machine's life and increase breakdowns.

• Daily Inspection

  The bags, blast filters, and other machine components are visually inspected for unusual signs such as wear, loosened or damaged parts, and corrosion. Any faults detected in the machine should be corrected as soon as possible. The oil levels and lubrication points of all moving parts should be checked and oiled where necessary. Any dust accumulation in the filter or around the bag blast should be cleaned up. Check all electrical connections to ensure they are tight, and there are no exposed wires or connections. All safety covers should be inspected and in place to avoid dangerous situations.

• Weekly Maintenance

  For more critical performance, the machine should be inspected weekly to see if it has had a monthly thorough check and cleaning. At this point, the fasteners are checked, and if any component is critically vibrating, the fault may have to be corrected. The pump parameters should be examined, such as pressure, voltage, current, flow, etc. If the actual parameter differs from the machine's prescribed requirement, further examination should be done to look for faults.

Scenarios of using bags blasts

The uses of bag blasts are endless, ranging from food to industrial uses. Here are some of the places and scenarios people will use bag blasts.

• Food Packaging

  The food industry is the biggest user of bag blasts. Many food items that are packaged and sold are done so using bag blasts. Popular food items include snacks like chips, coffee, frozen vegetables, candy packaging, meat packaging, and others. Packaging areas prefer using bag blasts because they are safrje and keep food fresh.

• Retail Packaging

  Retail stores are also a big user of bag blasts. Small retail stores that sell products like hardware, stationery, toys, and loose spices prefer using bag blasts for packaging. This is not only for product freshness but also for affordability. Big retail stores like supermarkets will also use bag blasts for branding and product segregation. Bag blasts are easy to use, come in many sizes, and are affordable for retail stores.

• Industrial Packaging

  Industries like agriculture, construction, and chemicals use bag blasts for bulk packaging. This is because they are strong and sturdy, and big bag blasts can hold large quantities of products. Products like grains, fertilizers, and seeds are packaged with bag blasts.

• Logistics and Shipping

  Logistics companies might use bag blasts for shipping smaller products. This is usually when products have to be bagged for safety. Clothing companies sometimes use bag blasts when shipping to protect the clothing from moisture and dirt.

• Storage Solutions

  People use bag blasts for storage at home. Fridge and freezer bag blasts are used to store food items and prevent spoilage, while cabinet and pantry bag blasts are used for organizing and storing dry food and snacks.

• Travel and Outdoor Activities

  When traveling, people use bag blasts to separate items in a suitcase or backpack. This helps when looking for small items in a large bag. People also use bag blasts when camping or hiking to store food and supplies.

• Emergency Preparedness

  In case of an emergency or natural disaster, people can use bag blasts to prepare. Many people use strong bag blasts to prepare for a hurricane by bagging up food supplies especially since they have a long shelf life. This is also the case for pandemics and any unforeseen events that might cause food scarcity.

How to Choose Bags Blasts

Considering the following factors when looking for blasting bags for sale will go a long way in ensuring they are worth the investment.

• Choose According to Bag Size Requirement

  Several factors will determine the sizes of the blast bags needed. As mentioned earlier, many industries have different uses for the bags. Some will need the bags to package and protect heavy and bulky items, while others will only need them for smaller items. Also, the type of blasting machinery that must be fit will also determine the size requirement. It's important to take notes of all parameters and consult with suppliers to find a size that will suit the specific needs of the industry.

• Materials

  Blasting bags come in various materials, each with unique qualities, like durability and resistance to different factors. The purpose of the bag will determine which material will work best. In some cases, the need for environmental-friendly products will come into play. For this, biodegradable kraft paper bags must be used instead of plastic or polyester options.

• Quality

  The quality of the bag affects its performance and longevity. Compare options before settling for one that will provide the desired benefits at the right cost.

• Cost-Efficiency

  Considering all the factors listed above, it should be easy to determine the cost efficiency of the blasting bags in question. Take note of their prices and the benefits they offer. One that provides greater value is ideal for economic purposes.

FAQ

Q1: What safety precautions should one take when using bags blast machines?

A1: When using a bags blast machine, safety is paramount. Therefore, operators should always wear personal protective equipment, such as goggles, safety glasses, gloves, and face masks. Also, they should avoid exposing themselves to toxic substances and excessive noise and ensure that the machine is properly maintained and grounded to prevent electric shocks.

Q2: How does a bags blast machine work?

A2: A bags blast machine works by evenly and efficiently blasting the surface of different types of bags with abrasive material. The engineering of these machines is such that the bags are held tightly in place, eliminating wrinkles and generating uniform blasting action. Some common abrasive materials used in these machines include steel shots, aluminum oxide, plastic grit, and glass bevelled grit, among others. The choice of blasting material depends on the type and purpose of the bagging machine.

Q3: What are the different types of bags blasting machines?

A3: There are two main types of bags blasting machines: pneumatic pressure valves and suction blast machines. The former provides a high-impact velocity suitable for small workpieces, while the latter offers a low-impact velocity ideal for delicate workpieces.

Q4: What are the advantages of using bags blasting machines?

A4: There are several benefits to using bags blasting machines. For one, they increase the production rate by more than 200%. Also, the machines provide an environmentally-friendly method of parts cleaning because they reduce the consumption of water and chemicals. Lastly, bags blasting machines prolong the life of equipment by preventing corrosion.

Q5: What other factors should buyers of bag blasts on Chovm consider apart from the machine's specifications?

A5: Buyers should also consider the supplier's service ability and delivery time. Also, the machine's price in relation to its blasting area, power supply, pressure range, and other specifics should be looked at. Most importantly, the buyer should choose a blasting bags supplier they can trust.