The installation requirements for screw conveyors are:
1. 20 days before the installation of the screw machine, the foundation should be well watered. This foundation should ensure sufficient stability of the screw machine during operation.
2. Before installing the screw machine, all parts should be thoroughly counted and various pollutants inside and outside should be cleaned.

3. The adjacent flange surfaces should be connected smoothly and tightly, and the misalignment deviation at the joints on the inner surface of the casing should not exceed 1.4mm.

4. Asbestos rubber plates are allowed to be placed between the casing flanges to adjust the accumulated error in the length of the casing and spiral body.

5. The nominal distance between the outer diameter of the screw and the casing is consistent

6. The suspension bearings of the screw conveyor should be reliably fixed on the lifting ears of the casing, and after connecting with adjacent screws, the screw rotation should be uniform. During installation, adjusting shims can be added between the suspension bearing support and the casing lifting ears to ensure that the coaxiality of the spiral axis meets the requirements

7. When the screw machine is single drive, the tail bearing blind cover should be opened, and the distance from the bearing end face to the blind cover should be measured to be less than 20mm.

8. The coaxiality between the main shaft of the screw machine and the reducer shaft should comply with the provisions of GB1184-80 "Regulations on Shape and Position Tolerances without Individual Tolerance Indications".
9. After the chassis of the screw machine is installed, tighten the foundation bolts.
10. Tighten all connecting bolts to a reliable level.
11. The cover of the screw conveyor should be installed in sequence, with a cover buckle installed at an interval of about 0.5m. The last cover at each overlap of the cover should have a cover buckle installed, and one to two cover buckles should be installed at both ends of the screw conveyor to ensure the sealing of the screw conveyor.
12. The dust collection port, feed port, and discharge port should avoid the overlap between the casing flange and the machine cover, and generally adopt on-site welding

Yes, a screw conveyor can be connected to a packaging machine. A screw conveyor is a device used for material conveying, which transports materials from one location to another through rotating spiral blades. A packaging machine is a device used to package and encapsulate materials. The two devices can be used in combination to achieve continuous material conveying and automatic packaging.

Connecting a screw conveyor and a packaging machine usually requires certain engineering design and adjustments to ensure coordination and smooth operation between the two. Here are some common connection methods:

Direct connection: Directly connect the discharge port of the screw conveyor to the feed port of the packaging machine, and adjust the height and position of the conveyor so that the material can smoothly enter the packaging machine for packaging.
Use a flipper: Install a flipper between the discharge port of the screw conveyor and the feed port of the packaging machine. The flipper can change the direction of the material so that it can smoothly enter the packaging machine.
Use a transfer platform: Set up a transfer platform between the screw conveyor and the packaging machine to transfer the material from the conveyor to the feed port of the packaging machine. This method is suitable for situations where the height or position of the conveyor and the packaging machine are inconsistent.
Regardless of the connection method, it is necessary to ensure the continuity and stability of the material to avoid blockage and material overflow. In addition, attention should be paid to safety and hygiene requirements to ensure the sealing and cleanliness of the connection to comply with relevant industry standards and regulations.

In the actual connection process, it is recommended to consult professional engineers or suppliers to design and install according to specific equipment and process requirements to ensure the effective connection and collaborative work of the screw conveyor and packaging machine.

Should I use an ultrasonic rotary vibrating sieve or a straight sieve to sift flour?
First, let us understand the working principle and advantages of ultrasonic rotary vibrating screen. Ultrasonic rotary vibrating screen is a device that uses ultrasonic waves and vibration force for screening. Through the action of ultrasonic waves, it can cause flour particles to vibrate at high frequencies on the screen, thereby achieving rapid and uniform screening. Ultrasonic rotary vibrating screen has the advantages of high screening efficiency, high screening precision, and simple operation. It can effectively remove small impurities in flour, and at the same time, it can also achieve precise control of the size of flour particles, making the quality of flour more stable.
However, in-line screening also has its unique advantages. The inline screen is a device that performs screening through gravity and the inclination angle of the screen. Its working principle is relatively simple and its operation is relatively convenient. The inline screen can achieve classification and screening of flour particles by adjusting the inclination angle of the screen. This screening method is suitable for situations where the size requirements of flour particles are not very strict. The screening efficiency of the straight screen may be relatively low, but its structure is relatively simple and the maintenance cost is low.
In summary, the choice of ultrasonic rotary vibrating screen or straight row screen should be decided according to the specific screening needs. If you have strict requirements on flour quality and particle size, and want to achieve efficient and accurate screening, then the ultrasonic rotary vibrating screen is a better choice. It can improve screening efficiency and ensure stable flour quality. If the flour particle size requirements are relatively loose and you want to save on equipment maintenance costs, then a straight screen may be more suitable. Of course, in practical applications, you also need to consider factors such as the price of the equipment, maintenance costs, production scale, etc., and comprehensively weigh all factors to choose the screening equipment that best suits your needs.

1. The bucket elevator should be driven with no load. Drain all materials in the hopper before stopping each time, and then stop.
2. it cannot be reversed. Derailment of the chain may occur when it is reversed, and it is very troublesome to troubleshoot the derailment.
3. Feed evenly. It is forbidden to increase the feeding amount suddenly. The feeding amount cannot exceed the conveying capacity of the elevator. Otherwise, it is easy to cause a "stuffy car" accident when the material at the bottom accumulates seriously.
4. Replenish lubricating oil in a timely and appropriate amount.
5. When the chain and hopper are severely worn or damaged, they should be replaced in time.

The conveying distance of a screw conveyor can be determined based on a variety of factors, including the design and specifications of the screw conveyor, the nature of the material being conveyed, the conveying angle, and the support structure used. Generally speaking, the conveying distance of screw conveyors can range from a few meters to hundreds of meters.

For short conveying distances (within tens of meters), the screw conveyor can usually be installed directly on a support structure, and the motor drives the screw to rotate to transport the material along the pitch direction of the screw.

For longer conveying distances (hundreds of meters), more complex designs and configurations may be required. A common practice is to segment the screw conveyor into sections, usually 10 to 20 meters in length, and then connect the sections through bearings and couplings. This reduces stress and vibration on the entire system and makes maintenance and installation easier.

In addition, in order to support longer distance transportation, additional support structures may be needed, such as pipes, support frames, etc. The design and installation of these structures also need to be considered on a case-by-case basis to ensure the stability and safety of transportation.

It should be noted that the conveying distance of the screw conveyor is too long, which may affect the conveying capacity and efficiency. For longer conveying distances, the fluidity and accumulation of materials also need to be considered to avoid clogging and accumulation.

Therefore, the specific maximum conveying distance of the screw conveyor needs to be evaluated and determined based on the requirements of the actual application and engineering design.

Is an ultrasonic vibrating screen necessary for screening oatmeal powder, especially when it's 220 mesh? The answer is definitely yes. There are three key reasons for this. Firstly, 220-mesh oatmeal powder is extremely fine and tends to clump together during screening. These clumps can block the screen, reducing efficiency. An ultrasonic vibrating sieve uses high-frequency waves to keep the powder loose, preventing clumps and blockages. Secondly, these screens are designed for fine materials. Xinxiang Dayong Vibration Equipment Co., Ltd.'s ultrasonic vibro screens, with their advanced technology, excel at screening fine powders like 220-mesh oatmeal, ensuring efficient and accurate results. Thus, an ultrasonic system is crucial for this task.