WHAT ARE THE ADVANTAGES OF CALCIUM HYDROXIDE PRODUCTION LINE? HOW DOES IT WORK?

The production of calcium hydroxide has been developed from the traditional manual to the current intelligent production line, and the production efficiency and production equipment have been greatly improved. The following calcium hydroxide manufacturers will introduce the calcium hydroxide production line to you. What advantages and how does it work!

ADVANTAGES OF CALCIUM HYDROXIDE PRODUCTION LINE

calcium hydroxide equipment

1. DIVERSIFIED PRODUCTS CAN BE PRODUCED

Calcium hydroxide production line can produce various specifications of calcium hydroxide, common specifications are 3T/h, 6T/h, 10T/h, 15T/h, 20T/h, which can meet the needs of most customers and also increase for us customer group.

2. LESS FLUE GAS EMISSIONS

The calcium hydroxide production line has less flue gas emissions, is a very energy-saving production equipment, and complies with the proposed green environmental protection standard.

3. HIGH DEGREE OF MECHANIZATION

The calcium hydroxide equipment has a high degree of mechanization, and many process computers can be controlled, reducing the disadvantages of manual control. Take labor as an example, skilled workers can produce standard products, but the products produced by new workers are not standard enough, which leads to product inconsistency. The computer-controlled production line produces standardized products.

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For more details click to visit:https://www.ly-gaifeng.com/blog/advantages-of-calcium-hydroxide-production-line.html

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Apartment bed installation precautions and maintenance methods

In order to facilitate the transportation of apartment beds, manufacturers usually disassemble the beds for transportation. After the customer receives the goods, the staff will assemble them. This installation process will take a long time. Efficiency and other issues, apartment bed manufacturers have sorted out some precautions and maintenance methods for apartment bed installation, hoping to help everyone.

Matters needing attention before installing the apartment bed

1. Clean up the site

Complete the cleanup of the installation site. The porters and installers of the apartment beds all have specific job contents and are not responsible for cleaning the site. If the cleaning work is not done in time, it is easy to cause a delay in the installation time, and it will also lead to an increase in labor costs.

2. Confirm the installation team

It is necessary to communicate with the apartment bed manufacturer in advance to confirm that there are several people in the team and who is in charge. This can also better communicate, improve work efficiency, and avoid unnecessary emergencies during the installation of apartment beds that affect acceptance and later use.

Black Metal Bunk Bed Frame

Matters needing attention in the installation of apartment beds

1. Avoid bumps

The apartment bed is a large item, and the weight is not light. At least two people can move it. When moving, pay attention to whether it will touch the wall, wipe the floor and other items, and pay attention to the safety of personnel.

2. Place smoothly

When placing the apartment bed, the ground should be kept flat, and the four legs of the bed body should be stable and flat on the ground.

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For more details click to visit:https://www.aoyangschoolfurniture.com/aoyang-news/apartment-bed-installation-precautions.html

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How many degrees can the slewing bearing temperature generally not exceed? Solutions for overheating

The temperature of the slewing bearing directly reflects whether the bearing is running normally. If the bearing temperature is too high, it may directly reflect that there may be some kind of failure in the bearing, which directly affects the performance of the machine. So how many degrees can the slewing bearing temperature generally not exceed?

Under normal circumstances, the temperature of the slewing bearing should not exceed 70℃, because the allowable temperature of the lubricating grease of the slewing bearing should be less than 80℃. Let’s take a look at the normal temperature range of the slewing bearing and how to solve the problem if the temperature is too high.

slewing bearing

1. The normal range of slewing bearing temperature

The temperature of the slewing bearing is mainly limited by the heat-resistant temperature of the bearing steel, cage, sealing material and lubricant, and in general, the working temperature of the slewing bearing should not be higher than 95 ℃. The aforementioned slewing bearing temperature should not exceed 70°C is calculated based on the grease life. If the operating temperature increases by 15°C, the grease life will be reduced by half. Among the heat-resistant temperature limits of several materials that affect the temperature of the slewing bearing, the heat-resistant temperature of the grease is lower, so this is the upper limit.

The normal working temperature that ordinary bearings can withstand is between 40 degrees Celsius and 70 degrees Celsius, but the ideal working temperature of slewing bearings should be in the range of 40-60 degrees Celsius. The slewing bearing used in the low temperature environment can be used in the vacuum environment. The selection of the low temperature bearing does not affect the working performance of the bearing, and it can also be used normally at minus 60 ℃.

Surface temperature of slewing bearing: When the bearing is running under the specified working conditions, the temperature of the outer surface of the built-in bearing should not be higher than the temperature of the conveying medium by 20℃, and the upper limit of the temperature should not be higher than 80℃. The temperature rise of the outer surface of the externally mounted bearing should not be higher than the ambient temperature by 40°C. The temperature is not higher than 80℃.

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For more details click to visit:https://www.ldb-bearing.com/ldb-bearing-knowledge/slewing-bearing-temperature.html

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Influence and adjustment method of insufficient tension of linear vibrating screen mesh

If the material wants to be screened, it must pass through the screen on the linear vibrating screen. When using the screen, a very critical factor is the tension of the screen, which is related to the screening effect of the material and the linear vibrating screen. production efficiency. Because the insufficient tension of the screen mesh will bring many influences, what are the influences of the insufficient tension of the linear vibrating screen mesh? How to solve it?

Influence of insufficient tension of linear vibrating screen mesh

Arc vibrating screen

1. Lead to material retention

Insufficient tension of the screen mesh of the linear vibrating screen will lead to the retention of materials, thereby preventing the forward movement of the material layer, which may lead to the accumulation of materials, or even block the screen mesh, affecting the production efficiency of the vibrating screen. Therefore, it is necessary to increase the tension of the vibrating screen to flatten the screen surface, thereby increasing the service life of the vibrating screen, and at the same time contributing to the power and productivity of the vibration. Part of the screening will concentrate on the force for a long time, which will easily cause the screening to break, and screen the materials that should not be screened, which will affect the screening effect.

2. Serious stress concentration

If the screen tension of the linear vibrating screen is large, the stress concentration will be serious. If the screen tension is loose, it is easy to produce secondary vibration, and the screen will be damaged prematurely under the action of alternating stress, which will increase the production cost.

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For more details click to visit:https://www.hsd-industry.com/news/influence-of-insufficiency-of-screen-tension-of-linear-vibrating-screen/

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Detailed explanation of the selection of briquetting machine

There are many types of briquetting machine, and it is also a widely used equipment, such as: chemical, energy, transportation, refractory, electric power, metallurgy and other industries are inseparable from the support of the ball press, so the selection of the ball press How should I choose?

Misunderstandings in the selection of briquetting machine

High pressure briquetting machine

1. It is believed that the larger the diameter of the briquetting machine, the higher the output will be.

This is correct to a certain extent, but it is not inevitable. For the processing of a certain material, the process requirements are different, and the selection of the briquetting machine is actually different. The amount of processing is not necessarily small.

2. It is believed that the higher the linear pressure ratio of the briquetting machine, the better

In fact, the line pressure ratio of the briquetting machine is the result of the test to obtain a certain technological purpose. Reasonable is good, not the higher the better.

3. Artificially classify the ball press

For example, some pressing balls are material moisture, which are divided into dry powder ball presses, wet material ball presses, and some are divided into low pressure ball presses, medium pressure ball presses and high pressure ball presses according to the size of the line pressure ratio. According to the material category, it is divided into: coal briquetting machine, coke powder briquetting machine, mineral powder briquetting machine, etc., and some are even more finely classified. We believe that reasonable classification is possible, but not necessarily necessary, and classification based on publicity purposes is a choice that may mislead investors.

For more details click to visit:https://www.zymining.com/blog/briquetting-machine-selection.html

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How to choose a bookshelf?

Now in many offices, there will be bookshelves, mainly to store some materials, books, sundries, etc. It can bring us great convenience, but on the issue of how to buy bookshelves, many people still do not know Understand, today office furniture manufacturers will talk to you about how to buy bookshelves, so that you can also have a clear understanding.

How to choose a bookshelf

Generally, when we choose a bookshelf, firstly, we need to look at the material of the bookshelf. Of course, we should choose some products that are corrosion-resistant, strong bearing, easy to take care of, and resistant to dirt. Secondly, we need to see whether the structure of the bookshelf is reasonable. Will be more durable and long life.

1. Pay attention to the internal dimensions of the bookshelf.

Before buying a bookshelf, you should consider the books to be placed in the future and the size of the files before purchasing.

2. Pay attention to the load-bearing capacity of the bookshelf.

Books are heavier and different from items stored in other furniture, so they have high requirements for firmness, especially the firmness of the horizontal plate in the middle of the bookshelf and the vertical shelves at both ends of the horizontal plate are important components related to the load-bearing of the bookshelf, and must be strong. , The vertical support force should also be strong, so that the whole can be firm and durable, so when purchasing bookshelves, you must choose a strong and firm one.

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For more details click to visit:https://www.etegreen.com/blog/how-to-choose-a-bookshelf/

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Tank truck maintenance, pay attention to these details!

When it comes to tank trucks, everyone is familiar with them. Most of the oil in gas stations is transported from oil fields by tank trucks. Therefore, many drivers of tank trucks will carry out long-distance transportation for many years, and some drivers tend to ignore some of the vehicles. Detailed maintenance, the following tank truck sales manufacturers will show you the maintenance details of the tank truck.

1. Tank truck body cleaning

Because the tanker runs for a long time, the body will be very dirty. Therefore, the body of the tanker should be cleaned frequently and carefully. It is necessary to know that excessive dirt on the body may cause a short circuit or corrode parts. Always keep the body clean. It can not only prolong the service life of the vehicle, but also keep the appearance of the vehicle beautiful.

2. Maintenance of the tanker bumper

The bumper of a fuel tank truck is different from the body. It can be cleaned with chemical synthetic agents. After cleaning, the bumper is not prone to rust, which is beneficial to prolong its service life.

tank truck

3. Remove tar and asphalt from the car body

Because the removal of asphalt and tar is a chemical synthetic agent, since it is a solvent, do not use it in the body in large quantities. Strictly speaking, only apply it on the surface of asphalt and tar. Therefore, wiping with a cloth dipped in a solvent increases the contact area between the synthetic agent and the asphalt, etc., the effect is better, and the cleaning is easy.

4. Maintenance of the cab steering wheel and brake pedal

The steering wheel is dirty and needs to be cleaned in time, so that the operation of the car linkage will be more agile and comfortable. Before driving, pay attention to check whether the gas and brake pedals are in place, and clean up the sludge on the pedals in time to avoid affecting the driving of the vehicle.

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Details can be accessed by clicking here:https://www.ly-cimc-linyu.com/news/tank-truck-maintenance/

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Safety technical operating rules for coal centrifuge

General regulations:

1. Operators and maintenance workers of coal centrifuges must undergo relevant training, and be issued with certificates after passing the examinations.

2. All operators must wear labor protection (including work clothes, hats, shoes, gloves, etc.) according to regulations. Female workers must put their hair braids in their hats. It is forbidden to wear scarves, wear high heels and slippers or work barefoot on site.

3. When cleaning the work site, it is strictly forbidden to wash electrical equipment, cables, lighting, signal lines and equipment transmission parts with water, and do not pour the bearing bush with water to cool down.

4. The work site should always be kept tidy and clean, the ground should be “Five No Leaks” (no coal, no water, no dust, and no debris), and the equipment should be “five no leaks” (no coal, no water, no leakage). No oil, no electricity, no air leakage).

5. The pressure protection and torque limit locking device of the compulsory lubrication system must be complete and intact, sensitive and reliable in action, and it is strictly forbidden to throw it away.

6. The coal centrifuge should be started when there is no load, and it is forbidden to feed in materials or rinse with water before it is started.

7. The coal-carbon centrifuge fails during operation and must be shut down for processing. Before overhauling or opening the observation hole, overhaul hole or locking device, the system must strictly implement the power failure tagging system.

8. The feed of the coal-carbon centrifuge should be kept uniform, and debris, especially iron, should be prohibited from entering the machine. Overload operation is strictly prohibited during operation.

Operating procedures

Coal centrifuge

(1) Check before driving:

1. Check whether the oil level in the fuel tank is appropriate (the appropriate oil level is 3/4~1/2 of the observation window), whether the oil is clean and meets the requirements, whether all cover bolts are fully tightened, and whether there are sundries around that affect the centrifugation The factor of the flexible operation of the machine, there is no debris or loose parts on the screen basket.

2. Turn each rotating wheel by hand to see if the centrifuge can rotate freely (flexibly. Check the tightness and wear of each V-belt, and see if there is any breakage or job-hopping.

3. Check whether the inspection holes and observation windows are tightly closed, and whether the fasteners are firm

4. The start sequence of the centrifuge is: first start the oil pump motor, wait until the oil pressure is normal, then start the main drive motor, and finally start the vibration motor.

(2) Start and stop

Start the car

1. The operation of this equipment is divided into two operation modes: centralized control automatic operation and on-site manual operation. During the normal production period, the centralized control automatic operation mode is adopted, and the on-site manual operation mode can only be adopted in the case of maintenance and failure. The conversion between the two modes is done by centralized control by clicking on the corresponding device icon and then selecting centralized or local completion, or by selecting the operation mode of the entire system from the control homepage as centralized or local completion. Note: The front and rear locking relationship of each device is released when operating in the local manual operation mode. Try to avoid using it in production!

2. Centralized control automatic operation mode: After receiving the command to start the vehicle in the centralized control room, after checking and confirming that there is no maintenance and other personnel work on the associated equipment near the equipment and before and after the equipment, open the lock of the equipment control button and notify the central office. The control room can start the car. The starting process is automatically completed by program control.

3. Check the normal operation of the equipment, vibration and lubrication, and notify the centralized control room for normal coal production.

4. On-site manual operation mode: first contact the centralized control room to confirm whether the equipment is in on-site mode. On the premise of checking and confirming that there is no maintenance and other personnel working on the associated equipment near the equipment and the front and rear of the equipment, open the lock of the equipment control button, and press the start button of the lubricating oil pump to start the oil pump. When the oil pressure exceeds 0 8 bar [delay 30 seconds], press the start button of the main drive motor to start the main motor. After the host is running normally [delay 5 seconds], press the vibration motor start button to start the vibration motor. When the vibration is normal, the start-up process of the whole machine is completed, and the feeding and production can be performed normally.

Stop the car

1. Normal centralized control automatic parking is automatically completed in sequence after the centralized control room clicks the system parking button of the corresponding system.

2. On-site manual normal shutdown method: first stop feeding. After all the materials in the equipment in operation are drained and thoroughly rinsed with water, the machine can be shut down. First, press the stop button of the vibration motor and the main drive motor one after another, and then press the stop button of the oil pump after the equipment is completely stationary.

3. In the centralized control mode, the equipment can be parked by pressing any parking button on the spot.

4. When the oil pressure of the pressure switch drops below the specified value (0.3 bar for the TEMA HSG1400 type) due to the loss of lubricating oil, pipe rupture, blockage, etc., the pressure switch will automatically stop the main motor power supply to achieve shutdown.

5. When the coal centrifuge is overloaded due to material overload, debris jam or mechanical failure, the torque limiting device will automatically stop the main motor power supply to achieve shutdown.

2. Matters needing attention during operation:

1. Pay attention to any abnormal sound during operation, check immediately and eliminate the cause before starting the machine, but note that the number of stops within one hour cannot exceed four times.

2. The feeding requirements are uniform. Pay attention to the filtrate discharge system should have sufficient air volume. The blockage of the ventilation pipe will affect the moisture of the product. The product moisture is high and there are coarse particles in the filtrate. The reasons must be checked and dealt with.

3. Pay attention to whether the mechanical operation and vibration are abnormal, the normal amplitude is 4~5mm, pay attention to the oil level of the lubricating oil tank and the oil return of the oil pipe, pay attention to whether the pressure gauge is normal, and the normal outlet oil pressure is 3.0~3.5 bar. Any situation that occurs should be investigated for the cause, and the system can be turned on only after the treatment is normal.

4. Pay attention to the temperature of the lubricating oil, the normal temperature rise is not more than 35C, and the temperature is not more than 80C.

5. The operation of the equipment should be under the centralized control of the whole plant, pay attention to whether the automatic protection device is working, and the reliability of the pressure switch should be checked regularly.

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​The operation details of the double row ball slewing ring can extend the life

As we all know, there is a big difference between standing objects and falling objects. For most seemingly tiny objects, paying attention to the details of the operation of the double-row ball slewing ring can prolong its service life. The following is a detailed introduction to this problem, let’s take a look. It should be noted that the operating details of the double-row ball slewing ring can extend its service life.

First of all, the outer packaging is very clear: usually the packaging of the factory brand is very clear from the line to the color, and it is not fuzzy at all.

Secondly, open the package and check whether the surface of the double row ball bearing is turbid. Please pay attention when purchasing imported double row ball rotary bearings. Because the domestic anti-rust technology is not very mature, it is easy to leave some oil stains on the hands after anti-rust treatment. The imported double-row slewing bearing can smell the anti-rust agent, but the anti-rust oil is almost invisible.

Then, the seal text is clear: Whether there are trademarks on the double volleyball slewing support, such as text, labels, etc., the fonts are small, but most of the products produced by the factory use steel stamping technology, and no heat treatment is performed before the text. Therefore, although the font is small and deep concave, it is very clear. The fonts of the counterfeit products are not only blurred, but the printing process is rough. The fonts float on the surface, and some are easy to wipe off by hand.
Similarly, the chamfer is uniform: the chamfer of the double-row ball slewing bearing is also the position on the horizontal and vertical interface. Due to the limitation of the production process, the bottom of the fake double-row ball slewing bearing has been unsatisfactory in processing.

The final sound: Hold the inner sleeve of the double-row ball bearing body with your left hand, and move the outer sleeve of the double-row ball bearing body with your right hand to rotate it, and listen for noise. Most counterfeit products are produced under poor production conditions and are entirely manual milling operations. Some impurities in the sand will be mixed during the production process. The double-row ball slewing bearing is hidden in the body, and there are impurities on the rotating ring.

Methods of controlling dust:

There are foreign objects such as dust in the reverse branch, and there will be no periodic vibration, dust ring, dust ring size vibration and noise, sometimes not.

The dustproof sound is as follows: For double-row ball slewing bearings/wheel bearings, the method of cleaning the bearings, holes, shafts and some supporting parts before installation is improved and strictly cleaned; by removing foreign matter in the lubricant, the sealing performance of the bearing can be improved. It is forbidden to use impure materials or materials containing foreign bodies in plastics.

Ways to control scar sound:

If the rolling bearing of the double-row ball slewing ring is cracked, jagged or rusted, there will be periodic noise and vibration like rivets. The period is likely to be fixed, but most of it corresponds to the speed, which will appear in a continuous channel. Scars, sometimes scars appear on the steel ball, sometimes no scars, this noise will change with the change of installation and lubrication conditions.

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What are the reasons for the defects of the slewing bearing raceway surface?

The slewing bearing can simultaneously withstand large axial loads, radial loads and overturning moments and other comprehensive loads. It has the characteristics of compact structure, easy to guide rotation, easy installation and easy maintenance. It is widely used in engineering, mining, metallurgy, wind power generation, ships, ports, petroleum, chemical industry, light industry, medical equipment, food, vehicles, robots, etc. , Aerospace, radar, and military industries. Due to installation, working environment and inadequate daily maintenance and other conditions, it is easy to cause defects in the raceway surface. Today, the slewing bearing manufacturer will analyze the reasons for the defects in the raceway surface of the slewing bearing for your reference.

1. Analysis of the causes of spalling on the raceway surface

Due to the serious unevenness or plane distortion of the raceway; after heavy load, the local pressure is too large and exceeds the contact strength of the raceway; due to point impact or long-term overload work, fatigue damage is caused; the raceway is rusted, cracks and gradually expanded; Local strong impact causes the hardened layer to fracture; the hardened layer is uneven or too thin; the harder foreign matter remains in the raceway, which causes the local pressure to be too large; the strip structure in the raw material destroys the hardened layer.

Slewing-Bearings

2. Analysis of the cause of pitting or pitting in the raceway and roller

There are hard debris such as sand and iron filings in the raceway; long-term operation of the local raceway under high contact strength causes local fatigue. Due to poor seal maintenance, rainwater or cleaning fluid is immersed in the raceway, causing local pitting or pitting in the raceway and roller; insufficient or loose assembly bolt pre-tightening force causes the axial gap to increase, and the roller is relatively The large overturning moment rotates, the contact stress on the edge of the raceway increases sharply and slips, and the large stress that the roller actually bears is prone to pitting corrosion.

3. Analysis of the reason for the regular linear indentation on the raceway surface

The main reason is that the slewing bearing is statically vibrating at a fixed position for a long time. For example, when a truck crane travels in a rugged and uneven terrain for a long time, the axial clearance increases, causing the roller bus bar to impact the raceway, resulting in linear indentations with equal spacing.

For precision measuring equipment, in order to improve the anti-overturning rigidity of the turntable bearing, it needs to have a certain negative clearance, which will inevitably bring a quantitative static friction torque, and at the same time, an appropriate static friction torque is also required, which is conducive to reducing Oscillation of small systems. But if the static friction torque is too large, it will also bring undesirable consequences.

In order to prevent excessive static friction torque from appearing, the appropriate selection of negative clearance is important, but at the same time, it is necessary to ensure that the radial fit between the turntable bearing and the turntable and the base has a proper clearance, and pay attention to the installation and fastening methods to avoid distortion of the raceway.

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