Product Description
Large capacity waste handing multi-shafts screw conveyor with hopper
Humidifying mixer is mainly used for spraying, humidifying, stirring and conveying powder dry ash of various ash warehouses to meet the requirements of environmental protection and transportation. Widely used in chemical, mining, power plants, steel mills and other solid particles containing the humidification, mixing and transportation.
Working principle and features
The single-axis humidifier consists of 4 parts: uniform feeding, blade feeding, mixed striking humidification, and vibration system, and is equipped with a dedicated electronic control and water supply system. The device is integrally fixed on the base, and the cylinder is supported by 4 sets of elastic elements.
Excitation device, vibration, so that the entire machine during operation, the cylinder for high-frequency vibration, so that between the cylinder wall and the stirring shaft always maintain a certain gap, so that the machine running resistance is greatly reduced, completely eliminated Boring machine, blocking the phenomenon,
Reduce downtime for cleaning and improve work efficiency. The water supply is controlled by the valve group. In order to stabilize the water supply and clean water quality of the system, a filter is set in the pipeline, and the main control cabinet is used to interlock and control the various parts of the humidifier.
To control the purpose of water supply and humidity.
Single-axis humidifier has the characteristics of large processing volume, compact structure, advanced technology, stable and reliable, and simple maintenance.
Advantages:
1. The shaft seal adopts multi-groove labyrinth and packing compound seal, reliable sealing, and light wear on the shaft.
2, large output (every hour can be mixed and humidified 200t), evenly humidified, reliable work.
3. Specially-made atomizing nozzles and water supply systems with adjustable water volume can ensure uniform humidification of materials.
4. The stirring rod is made of iron-based wear-resistant alloy or CZPT ceramics, which has a long service life.
5. The shell CZPT is made of iron-based wear-resistant alloy, which has a high service life and avoids material self-flow caused by excessive clearance after wear.
6, the aircraft layout is flexible, there are 2 forms of chain drive and direct connection, the transmission mechanism using cycloid reducer.
7. Increase the vibration system so that it overcomes the problem of handling the viscous dust and easily forms the adhesiveness of the cylinder wall, improves the adaptability of the humidifier, and expands the application range of the humidifier. The shell and the base are elastically connected to make the rapping to the whole machineno effect.
| Model | Capacity t/h | Main Motor Power KW |
Feeder Motor Power KW |
Vibration Motor Power KW | Application Temperature ºC | Water Pressure Mpa | Weight T |
| DSZ-50 | 15 | 7.5 | 1.1 | 0.4 | ≤300 | ≥0.2 | 2.7 |
| DSZ-60 | 30 | 11 | 1.5 | 0.75 | ≤300 | ≥0.2 | 3.2 |
| DSZ-80 | 60 | 18.5 | 1.5 | 2.2 | ≤300 | ≥0.2 | 4.7 |
| DSZ-100 | 100 | 37 | 2.2 | 2.5 | ≤300 | ≥0.2 | 7.7 |
| DSZ-120 | 160 | 45 | 2.2 | 3.7 | ≤300 | ≥0.2 | 8.9 |
| Model | SJ-10 | SJ-20 | SJ-40 | SJ-60 | SJ-80 | SJ-100 | SJ-200 |
| T/H | 10 | 20 | 40 | 60 | 80 | 100 | 200 |
| Screw diameter MM | Φ400 | Φ400 | Φ600 | Φ600 | Φ700 | Φ700 | Φ800 |
| Rotating rate R.P.M | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Reducer Model | XWD 4-5-1/35 |
XWD 5.5-5-1/35 |
XWD 11-7-1/35 |
XWD 15-8-1/35 |
XWD 8.5-9-1/35 |
XWD 22-10-1/29 |
XWD 30-11-1/29 |
| Motor power (kw) | 4.0 | 5.5 | 11 | 15 | 18.5 | 22 | 30 |
| Mixer Type: | Powder Mixer |
|---|---|
| Working: | Convection Mixer |
| Stirring Type: | Spiral |
| Application: | Liquid with Suspended Solids, Powder, Liquid |
| Certification: | CE, ISO |
| Application Area: | Metallurgy&Mineral |
| Customization: |
Available
| Customized Request |
|---|
Screw Sizes and Their Uses
Screws have different sizes and features. This article will discuss screw sizes and their uses. There are two main types: right-handed and left-handed screw shafts. Each screw features a point that drills into the object. Flat tipped screws, on the other hand, need a pre-drilled hole. These screw sizes are determined by the major and minor diameters. To determine which size of screw you need, measure the diameter of the hole and the screw bolt’s thread depth.
The major diameter of a screw shaft
The major diameter of a screw shaft is the distance from the outer edge of the thread on one side to the tip of the other. The minor diameter is the inner smooth part of the screw shaft. The major diameter of a screw is typically between two and sixteen inches. A screw with a pointy tip has a smaller major diameter than one without. In addition, a screw with a larger major diameter will have a wider head and drive.
The thread of a screw is usually characterized by its pitch and angle of engagement. The pitch is the angle formed by the helix of a thread, while the crest forms the surface of the thread corresponding to the major diameter of the screw. The pitch angle is the angle between the gear axis and the pitch surface. Screws without self-locking threads have multiple starts, or helical threads.
The pitch is a crucial component of a screw’s threading system. Pitch is the distance from a given thread point to the corresponding point of the next thread on the same shaft. The pitch line is one element of pitch diameter. The pitch line, or lead, is a crucial dimension for the thread of a screw, as it controls the amount of thread that will advance during a single turn.
The pitch diameter of a screw shaft
When choosing the appropriate screw, it is important to know its pitch diameter and pitch line. The pitch line designates the distance between adjacent thread sides. The pitch diameter is also known as the mean area of the screw shaft. Both of these dimensions are important when choosing the correct screw. A screw with a pitch of 1/8 will have a mechanical advantage of 6.3. For more information, consult an application engineer at Roton.
The pitch diameter of a screw shaft is measured as the distance between the crest and the root of the thread. Threads that are too long or too short will not fit together in an assembly. To measure pitch, use a measuring tool with a metric scale. If the pitch is too small, it will cause the screw to loosen or get stuck. Increasing the pitch will prevent this problem. As a result, screw diameter is critical.
The pitch diameter of a screw shaft is measured from the crest of one thread to the corresponding point on the next thread. Measurement is made from one thread to another, which is then measured using the pitch. Alternatively, the pitch diameter can be approximated by averaging the major and minor diameters. In most cases, the pitch diameter of a screw shaft is equal to the difference between the two.
The thread depth of a screw shaft
Often referred to as the major diameter, the thread depth is the outermost diameter of the screw. To measure the thread depth of a screw, use a steel rule, micrometer, or caliper. In general, the first number in the thread designation indicates the major diameter of the thread. If a section of the screw is worn, the thread depth will be smaller, and vice versa. Therefore, it is good practice to measure the section of the screw that receives the least amount of use.
In screw manufacturing, the thread depth is measured from the crest of the screw to the root. The pitch diameter is halfway between the major and minor diameters. The lead diameter represents the amount of linear distance traveled in one revolution. As the lead increases, the load capacity decreases. This measurement is primarily used in the construction of screws. However, it should not be used for precision machines. The thread depth of a screw shaft is essential for achieving accurate screw installation.
To measure the thread depth of a screw shaft, the manufacturer must first determine how much material the thread is exposed to. If the thread is exposed to side loads, it can cause the nut to wedge. Because the nut will be side loaded, its thread flanks will contact the nut. The less clearance between the nut and the screw, the lower the clearance between the nut and the screw. However, if the thread is centralized, there is no risk of the nut wedgeing.
The lead of a screw shaft
Pitch and lead are two measurements of a screw’s linear distance per turn. They’re often used interchangeably, but their definitions are not the same. The difference between them lies in the axial distance between adjacent threads. For single-start screws, the pitch is equal to the lead, while the lead of a multi-start screw is greater than the pitch. This difference is often referred to as backlash.
There are two ways to calculate the pitch and lead of a screw. For single-start screws, the lead and pitch are equal. Multiple-start screws, on the other hand, have multiple starts. The pitch of a multiple-start screw is the same as its lead, but with two or more threads running the length of the screw shaft. A square-thread screw is a better choice in applications requiring high load-bearing capacity and minimal friction losses.
The PV curve defines the safe operating limits of lead screw assemblies. It describes the inverse relationship between contact surface pressure and sliding velocity. As the load increases, the lead screw assembly must slow down in order to prevent irreversible damage from frictional heat. Furthermore, a lead screw assembly with a polymer nut must reduce rpm as the load increases. The more speed, the lower the load capacity. But, the PV factor must be below the maximum allowed value of the material used to make the screw shaft.
The thread angle of a screw shaft
The angle between the axes of a thread and the helix of a thread is called the thread angle. A unified thread has a 60-degree angle in all directions. Screws can have either a tapped hole or a captive screw. The screw pitch is measured in millimeters (mm) and is usually equal to the screw major diameter. In most cases, the thread angle will be equal to 60-degrees.
Screws with different angles have various degrees of thread. Originally, this was a problem because of the inconsistency in the threading. However, Sellers’s thread was easier to manufacture and was soon adopted as a standard throughout the United States. The United States government began to adopt this thread standard in the mid-1800s, and several influential corporations in the railroad industry endorsed it. The resulting standard is called the United States Standard thread, and it became part of the ASA’s Vol. 1 publication.
There are two types of screw threads: coarse and fine. The latter is easier to tighten and achieves tension at lower torques. On the other hand, the coarse thread is deeper than the fine one, making it easier to apply torque to the screw. The thread angle of a screw shaft will vary from bolt to bolt, but they will both fit in the same screw. This makes it easier to select the correct screw.
The tapped hole (or nut) into which the screw fits
A screw can be re-threaded without having to replace it altogether. The process is different than that of a standard bolt, because it requires threading and tapping. The size of a screw is typically specified by its major and minor diameters, which is the inside distance between threads. The thread pitch, which is the distance between each thread, is also specified. Thread pitch is often expressed in threads per inch.
Screws and bolts have different thread pitches. A coarse thread has fewer threads per inch and a longer distance between threads. It is therefore larger in diameter and longer than the material it is screwed into. A coarse thread is often designated with an “A” or “B” letter. The latter is generally used in smaller-scale metalworking applications. The class of threading is called a “threaded hole” and is designated by a letter.
A tapped hole is often a complication. There is a wide range of variations between the sizes of threaded holes and nut threads, so the tapped hole is a critical dimension in many applications. However, even if you choose a threaded screw that meets the requisite tolerance, there may be a mismatch in the thread pitch. This can prevent the screw from freely rotating.
editor by CX 2023-09-04