How to choose the length and width of the vibrating screen?

When we choose a vibrating screen, we generally pay attention to its model size. If it is used in different industries, the selected model size is also different. For example, if it is used in the mining production industry, then the vibrating screen must be of the heavy-duty type. Relatively speaking, the size of the model is relatively large, and the parameters that determine the size of the vibrating screen to a certain extent are the length and width of the vibrating screen, so how to choose the length and width of the vibrating screen?

Selection of length and width of vibrating screen

Arc vibrating screen

1. Selection of the length of the vibrating screen

The selection of the length of the vibrating screen should be appropriate, because the screening efficiency of the linear vibrating screen is directly related to the length of the linear vibrating screen. If the length is too long, the screened materials will not be able to quickly leave the screen surface and affect the linear vibration. Screening effect. If the length is too short, the residence time of the material on the screen surface is too short, and it cannot be sufficiently screened. It is also unreasonable to increase the screening efficiency by using a longer screen surface to increase the screening time, so the length of the screen surface must be selected appropriately.

2. Selection of the width of the vibrating screen

At present, the width of the vibrating screen is at most 3.6m, and the width of the screen surface of the light-duty linear vibrating screen cannot exceed 1.5m. If the screen surface is too wide, it is difficult to ensure the uniformity of the material on the screen surface. In order to ensure the ability of the linear vibrating screen screening equipment, the material on the screen surface of the linear vibrating screen needs to have a certain thickness. When the thickness of the material on the screen surface reaches a certain level, the amount of the screen surface passing through it mainly depends on the linear vibrating screen. width. Therefore, the larger the production capacity, the wider the screen surface needs to be, but the width of the linear vibrating screen also has a certain limit.

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Details can be accessed by clicking here:https://www.hsd-industry.com/news/how-to-choose-the-length-and-width-of-the-vibrating-screen/

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What are the reasons for the blockage of the briquetting machine?

The briquetting machine has high operation efficiency, which can not only complete the production quickly, but also ensure the quality. In particular, the briquette briquette machine is related to the quality of the product, so it is necessary to eliminate unfavorable factors as much as possible for the working state of the briquette machine. In the long-term operation, the equipment of the briquetting machine will fail, and the briquetting machine may be blocked. What are the reasons for the blockage of the briquetting machine? Let’s take a look together~

Causes of blockage of the briquetting machine

1. The cutting speed is too fast, so that the production speed is lower than the feeding speed, and it is easy to cause blockage.

2. If the temperature of the material is too high, the humidity will be too high. Once the humidity is too high, the viscosity will inevitably increase, so it is easy to cause the briquetting machine to be blocked.

3. The material is doped with larger particles, therefore, the material cannot pass through the roller, resulting in blockage.
4. The speed of the briquetting machine is too slow, and it is difficult to demould the material. Usually, the speed of the briquetting machine should be maintained at about 10 to 20 rpm.

5. Special mold design will also lead to the difficulty of mold release. For example, rectangle and diamond shape are special. Usually, we need oval and round shape, which is convenient for mold release.

6. The management of materials is not in place, mainly because the coordination and communication of employees are not in place, resulting in uneven delivery of materials.

High Pressure Briquetting Machine

Common faults of briquetting machine equipment

1. No ball or no shape

In the use of briquetting machine equipment, sometimes the phenomenon of non-balling and non-forming occurs. The main reasons are insufficient feed, too low hydraulic pressure, soft roll skin quenching, and ball socket deformation. Insufficient feeding will make the briquetting machine without material to press, so add enough material to the briquetting machine; if the hydraulic pressure is too small, the material will not be fully pressurized. At this time, reduce the speed and increase the pressure. The deformation of the ball socket will make the shape of the material uneven, and it should be repaired or replaced in time.

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Details can be accessed by clicking here:https://www.zymining.com/blog/causes-of-blockage-in-the-briquetting-machine.html

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What problems should be paid attention to when purchasing concrete mixer trucks?

Concrete mixer trucks are very common in construction projects. The boom in the real estate industry has accelerated the development of concrete mixer trucks. The market for concrete mixer trucks is getting wider and wider, and more and more users want to buy mixer trucks. What problems should be paid attention to when mixing trucks?

1. Choose the right load

This mainly refers to the choice of tank volume. For example, a mixer truck with a large loading capacity has high transportation efficiency, but the corresponding cost is also high. It is said that the loading capacity of the first four and eight-wheeled mixer trucks is higher than that of the rear eight-wheeled mixer trucks. It is much larger, but the price of the first four and the eight-wheeled mixer is 30%-40% more expensive than that of the latter eight-wheeled mixer. If the construction site you are working on is relatively small and the road is narrow, then choose a smaller mixer; if The construction site you are working on is larger, so choose a larger mixer truck, which has a larger carrying capacity and a relatively higher profit. In short, a suitable mixer truck can do more with less.

Concrete mixer trucks

2. Material selection

The mixer truck is afraid of failure during transportation. If there is a failure during transportation, it will cause concrete to coagulate. If it is serious, the tank may be scrapped, so pay attention to the selection of materials. It is better to choose imported mixer trucks, reducers, hydraulic motors, radiators and other components. If economic conditions permit, small mixer trucks are better to choose imported ones, so that the quality can be guaranteed.

3. Select a reasonable structure design

Reasonable structure design can ensure convenient operation. Concrete residue is easy to accumulate in the mixing tank. After a long time, the effective volume of the tank will be reduced, and it will be more laborious to clean up.

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Details can be accessed by clicking here:https://www.ly-cimc-linyu.com/a/news/precautions-for-the-purchase-of-concrete-mixer-trucks.html

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WHAT ARE THE TECHNICAL REQUIREMENTS FOR GEAR FORGINGS?

Gear forgings, as the name suggests, are a kind of gear produced by forging technology. The performance of gear forgings will be more stable, and the damage rate will be reduced a lot during operation, so the demand for gear forgings is very large.

Gear forgings are also a kind of forging products. When forging, it needs to be carried out according to the rules. At the same time, some hard technical requirements need to be met. Now forging manufacturers will introduce the technical requirements of gear forgings.

gear

1. The allowance size of gear forgings should conform to national standards.

2. Gear forgings should ensure a suitable forging ratio during forging, and should not be forged with round steel of similar size.

3. Do not use billet forging.

4. The material of gear forgings should be consistent with the material of the parts, and the chemical composition should meet the national standard. And issue a bill of materials.

5. To ensure normal forging temperature, not forging at low temperature or over-burning.

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Details can be accessed by clicking here:https://www.gold-emperor.com/technical-requirements-for-gear-forgings/

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What are the existing forms of excavator slewing bearings?

The excavator is one of the most important equipment in modern engineering construction. The reason why the excavator can turn left and right during work is inseparable from the credit of the slewing mechanism, which is an important part of the excavator.

The slewing mechanism is connected with the traveling device through a slewing bearing, and the slewing drive device makes the platform rotate relative to the traveling device, and drives the working device to rotate around its central axis of rotation. Next, the slewing bearing manufacturer will tell you about the existence and working principle of the excavator slewing bearing, hoping to help everyone.

Existence form of slewing bearing

slewing bearing

1. Rotary column slewing bearing

In the structure of the rotating column slewing bearing, the rotating body and the supporting shaft form a rotating column, which is inserted into the bearing of the bearing seat. The bearing housing is bolted to the frame. The shell of the swing cylinder is also fixed on the frame, and its output shaft is inserted into the lower bearing. The rotating body is driven to rotate relative to the frame. The working device is hinged on the rotating body and rotates with the rotating body, and the rotation angle is not more than 180°.

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Details can be accessed by clicking here:https://www.excavatorbearing.com/a/bearing-knowledge/excavator-slewing-bearing-existence-form.html

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How to determine the accuracy of crossed cylindrical roller bearings?

The accuracy of cylindrical roller bearings increases sequentially from 0. For general use, 0 is sufficient, but when used in special conditions or occasions, a precision of 5 or higher is required. Although the above accuracy is based on the ISO standard, its name is different in each standard. The following lists the applicable accuracy of various cylindrical roller bearing types and the comparison between the standards.

Dimensional accuracy

1. Allowable deviation of inner diameter, outer diameter, width and assembly width;

2. The allowable deviation of the inner diameter of the complex circle and the diameter of the outer circle of the roller group;

3. The allowable limit value of the chamfer size;

4. The allowable variation of the width and the rotation accuracy;

5. Allowable radial runout and axial runout of inner ring and outer ring;

6. The allowable lateral runout of the inner ring;

7. The allowable variation of the inclination of the outer diameter surface;

8. The allowable variation of the thickness of the thrust bearing raceway.

Crossed Roller Bearings

Standard cylindrical roller bearings have many sizes and forms. Standard bearings are used in the design of mechanical devices. The nature, size and direction of the load of cylindrical roller bearings and the load applied to the bearing are changeable. Usually, the rated base load is shown on the dimension table. However, axial load and radial load, etc., are also important factors in choosing a suitable cylindrical roller bearing.

When the ball and needle roller bearings are of the same size, needle roller cylindrical roller bearings usually have higher load capacity and withstand higher vibration and shock loads. The allowable speed is determined according to factors such as the type, size, accuracy, cage type, load, lubrication method, and cooling method of the cylindrical roller bearing. The allowable rotational speed of standard precision bearings under oil lubrication and grease lubrication is listed in the cylindrical roller bearing table. Generally, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.

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Details can be accessed by clicking here:https://www.prsbearings.com/a/news/determination-of-accuracy-of-crossed-cylindrical-roller-bearings.html

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What are the features of plant growth racks?

Plant seedling cultivation is a very critical link in plant growth. Currently, there are special plant growth racks for plant cultivation, which can provide good environmental conditions for plant growth. In the process of plant breeding and crop breeding, there are many ways to accelerate the growth rate of plants, one of which is to extend the plant light time, combined with early harvesting of seeds, so that seeds can iterate quickly, thereby reducing the growth of some long-day crops or day-neutral plants cycle.

The plant growth racks adjust temperature, humidity and other parameters through an intelligent control system. The human-machine interface adopts an industrial color hand-touched LCD screen, and has various functions such as program control, light control, temperature control, and sterilization, which can be used to study environmental conditions. The influence of biological life activities and the cultivation, domestication and breeding of certain organisms. The plant growth rack mainly includes a central control system, an enclosure structure, a temperature and humidity system, an intelligent fresh air ventilation system, a lighting system, a cooling system, etc.

Features

1. Central controller: PLC programming, with over-temperature alarm, remote alarm, monitoring, mobile APP real-time viewing, reset, etc.

2. Enclosure part: hexahedral double-sided color steel/stainless steel polyurethane high-density B1 environmental protection insulation material; the ground is made of environmentally friendly non-toxic materials, moisture-proof and mildew-proof.

3. Constant temperature and humidity control system: The new dynamic constant temperature and humidity control system has fast response and high precision.

4. Arbitrary setting of temperature and humidity: Arbitrarily set temperature and humidity control parameters automatically form a local microclimate environment.

5. Fresh air ventilation system: It can be ventilated regularly, with fresh air from the bottom and exhaust from the top.

6. Air curtain isolation system: prevent the exchange of internal and external air flow to save energy consumption.

7. Internal circulation ventilation and humidification system: make the air supply and humidification in the warehouse uniform, and there will be no large temperature deviation in local areas.

8. Lighting system: LED grow lights can be tailored to specific plant growth habits, with long life and high light efficiency.

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Details can be accessed by clicking here:https://www.etegreen.com/blog/plant-grow-rack-features/

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What are the production control systems of the paper tube machine?

The high-speed automatic valve bottom paper bag paper tube machine is a linkage production line. The tube making machine is used to produce medium-sized stepped bottom bag tubes and straight-cut bag tubes. It needs to be used in conjunction with the bottom gluer to complete the entire valve bag. production process.

The bottom paste paper bag has low cost and high strength. It is widely used in the packaging of powdery and granular materials such as cement, chemical raw materials and grains. The paper tube machine is composed of multiple production control systems. Next, the paper tube machine manufacturer will introduce to you in detail what are its production control systems?

Features and functions of production control system of paper tube machine

HD100-ID Square Bottom Machine

1. Automatically correct the deviation of the paper

The paper feeding automatic deviation correction system is to make the paper edge of each layer of bag automatically run at the set position, to ensure the accuracy of the trapezoidal incision of the bag tube and the position of the glue, and it is an important automatic control function to ensure the quality of the bag tube and the glued bottom bag.

2. Automatic brake on paper break

When paper breaks occur at the paper holder, virtual cutting and the entrance of the main machine, emergency automatic braking is realized, which effectively avoids the phenomenon of traffic jam caused by untimely detection of paper breaks, shortens the processing time of paper breaks and reduces paper waste.

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Details can be accessed by clicking here:https://www.lyhuatianm.com/products-information/paper-tube-machine-production-control-system.html

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WHAT ARE THE DESIGN PRINCIPLES OF CALCIUM HYDROXIDE PRODUCTION LINE?

Calcium hydroxide production line is a kind of chemical equipment that uses dry method to produce calcium hydroxide, which has the advantages of energy saving, environmental protection, large output, etc. What are the design principles of calcium hydroxide production line?

1. TO MEET ENVIRONMENTAL PROTECTION REQUIREMENTS

When designing calcium hydroxide equipment, it is necessary to use decomposable, non-toxic and pollution-free materials that meet environmental protection requirements, use environmentally friendly renewable materials as much as possible, avoid the use of harmful materials containing resin and asbestos, and at the same time ensure the performance of the equipment. In order to reduce the use of additional materials, the design should be concise, reduce the waste of energy and reduce the weight of the equipment.

15T installation site of Weinan Yaobai Cement Plant

2. IN ORDER TO MEET THE REQUIREMENTS OF HUMANIZATION

Since the users of environmental protection equipment are all front-line workers, the design process of calcium hydroxide equipment should be people-oriented. The control room adopts sound insulation, shock absorption and thermal insulation materials to ensure the sealing performance and environmental protection performance of the control room, and the air conditioner adopts fluorine-free air conditioner. Each lever must be set in a reasonable position, fully considering the purpose of humanization.

Details can be accessed by clicking here:https://www.ly-gaifeng.com/blog/design-principles-of-calcium-hydroxide-production-line.html

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What are the lubrication methods of vibrating screen?

In the mine production site, vibrating screen is a common equipment, which needs to screen and dehydrate materials. Since it is a large-scale equipment and the workload of the equipment is large, the maintenance work of the vibrating screen should be done well at ordinary times, and the lubrication and maintenance can ensure the normal production and operation of the vibrating screen. So what kind of lubrication is used for the vibrating screen? Generally, there are two types of lubrication, oil lubrication and grease lubrication. The following editors from Hiside will give you a detailed introduction.

1. Lubrication method of vibrating screen

Oil lubrication of vibrating screen

Lubricating oil has strong fluidity and dispersibility, so the oil-lubricated seal needs to be safe and reliable. The sealing device is more complicated than grease lubrication, and it is more difficult to disassemble and maintain. Oil lubrication is generally suitable for bearings operating at high speeds or in environments with high bearing temperatures. Commonly used oil lubrication methods include oil bath lubrication, circulating oil lubrication, drip oil lubrication, oil injection lubrication, and oil and gas lubrication.

Grease lubrication of vibrating screen

Grease has the characteristics of strong adhesion, not easy to run off, and good pressure resistance. Due to the weak fluidity of the grease, the grease lubricated sealing device is relatively simple, the disassembly and maintenance are more convenient, and a special oil supply system is not required. Grease lubrication is generally suitable for work in low and medium speed and moderate temperature environments. Commonly used greases are calcium-based grease, sodium-based grease, aluminum-based grease, general-purpose lithium-based grease, extreme-pressure lithium-based grease and molybdenum disulfide extreme-pressure lithium-based grease.

Banana screen

2. Characteristics of vibrating screen lubrication method

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Details can be accessed by clicking here:https://www.hsd-industry.com/news/vibrating-screen-lubrication-method/

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