What are the performance advantages of cement square bottom valve bags?

With the continuous deepening of the industrial automation process of cement enterprises and the further emphasis on the quality of cement packaging bags, the quality and performance requirements of plastic-woven square bottom valve port cement bags are getting higher and higher, mainly in: mechanical properties, that is, strong Strong, anti-dropping, and able to handle long-distance transportation. Such as moisture resistance and good sealing performance, ensure that the product will not be damp during storage and transportation, the product will not leak, and will not cause cement loss.

In terms of automation function, it can be filled efficiently, quickly and accurately. At present, the all-plastic square bottom valve bag has been widely used in cement enterprises at home and abroad. It is characterized by fast filling, neat and beautiful appearance, good sealing performance, exquisite printing, large packaging volume, and stand-up packaging, which is very suitable for stacking. transport operations. With the automatic filling of the packaging machine, the valve port on the top can achieve the effect of automatic sealing after the cement is filled, saving time and effort.

HD100-IB Square Bottom Machine

Introduction to the advantages of plastic woven square bottom valve bags

The plastic woven square bottom valve bag is produced by a professional square bottom valve bag making machine. It is produced by heat sealing, using pp woven bag tube with lamination, and is a low-cost square bottom valve bag suitable for automatic packaging processed by heat sealing production process. The upper and lower sealing of this square bottom valve bag does not require any sewing. String. Instead, a stable heat-sealing is performed with the coating layer of the woven cloth. The film on the bottom of the bag, as well as the film on the valve flap and back cover, are softened by hot air and then heat sealed together by pressure.

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Details can be accessed by clicking here:https://www.lyhuatianm.com/products-information/performance-advantages-of-cement-square-bottom-valve-bags.html

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Common faults and solutions of smart compact shelves

In this era of intelligence, the intelligent compact shelf is a very popular one, and it stands out among many products with its unique intelligent system. No matter how good things are, there will be some problems or damages when they are used. Let’s introduce the common faults and solutions of smart compact shelves in detail. Let’s find out together!

Common Faults of Smart Shelves

1. When operating the control panel of the intelligent compact shelf, the shelf can not work according to our instructions, but the indicator light on one side of the shelf can light up normally. In this case, the system circuit will fail due to long-term non-use, mainly because the fuse on the control circuit board is blown, resulting in disconnection. The user should check whether the fuse in the distribution box is normal in time and replace it in time to ensure its normal operation.

2. The intelligent compact rack cannot be used, the control screen does not appear, and the indicator light does not light up

Not available. We must first check whether the power supply is normal. It may be that the power supply is not turned on, or it may be that the intelligent intensive cabinet is overloaded due to operational errors, resulting in direct damage to the system. If this is the case, you need to reinstall the smart shelf, please contact the manufacturer, and it will not be able to be installed without a person.

case

3. The computer announces the command, but the product does not respond

Reason: The power supply of the fixed column panel is bad or the computer port is not set correctly. Solution: Press the power switch on the fixed column button to reset the ports on the computer.

4. When the computer is running, the screen state is disordered

Reason: signal scramble or virus intrusion, the plug of the signal cable is loose. Treatment: Turn off the power and restart, check whether the connector can still be used, and start the self-check function of the file storage rack system to automatically repair; if there is still a problem, please contact the manufacturer to send a technician.

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Details can be accessed by clicking here:https://www.etegreen.com/blog/common-faults-of-smart-compact-shelves/

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How much does a tractor clutch replacement cost and how to replace it?

The tractor engine and gearbox power transmission device is the clutch three-piece set, that is, the pressure plate, the friction plate and the release bearing. It is generally recommended that the tractor clutch three-piece set needs to be replaced after reaching the limited mileage, and the replacement cost is about ￥500. The hourly rate varies from place to place.

Sometimes, many tractors have not reached the limited mileage, and may also need to replace the three-piece clutch, so how do you judge that your clutch plate needs to be replaced?

12 Inch 16 Spline Main Disc With Spring

Symptoms of a clutch plate failure

1. When you step on the clutch pedal or lift it up, you can hear the sound of metal friction or even smell the smell, which is a very obvious phenomenon of serious wear of the clutch plate;

2. I feel that the clutch stroke has changed from when I first bought the car, and the clutch joint point has become higher, which is probably due to the wear of the clutch plate;

3. It feels that the power of the car drops when climbing a hill, and the engine speed increases, but the power response is not timely, or there is insufficient power;

4. When the clutch is lifted, it is felt that the power connection is not smooth, and the car is intrusive, which is also the result of the wear of the clutch plate.

The clutch plate is an important part of the clutch. Before the clutch needs to be replaced, the wear resistance of the clutch is generally reduced due to severe friction. Therefore, when the clutch is in use, there is a jerky feeling when stepping on and lifting the clutch, so the clutch needs to be replaced at this time. In short, how often the clutch is replaced is not fixed, and the frequency of tractor clutch replacement is also different according to the service life and the driver’s driving habits and road conditions.

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Details can be accessed by clicking here:https://www.syclutch.com/news/tractor-clutch-replacement.html

 

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How to use the tractor clutch correctly?

The tractor clutch is installed after the engine and before the transmission. Its basic function is to transmit and cut off the power. The main function is to transmit the power from the engine to the transmission; the second is to ensure that the engine starts and the tractor starts smoothly; Temporary parking; fourth, to prevent overloading of the transmission system; fifth, the double-acting clutch also plays the role of transmitting or cutting off the power output.

However, tractor clutches often fail frequently during use. In fact, among the clutch failures, in addition to the quality problems and design problems of the clutch itself, a large part of the failures are related to improper use and operation. The following tractor clutch manufacturers will give you the details. Introduce the correct operation and use of the tractor clutch.

Do not step on the clutch, do not step on the clutch halfway.

Some tractor operators habitually put their feet on the clutch pedal when working. This habit is not good, and it is easy to damage the clutch. When the clutch of the tractor is working normally, the disc spring tightly presses the friction plate on the flywheel of the engine, and the clutch is in the state of pressing and engaging, and the friction plate does not slip.

When the clutch needs to be disengaged, it is realized by stepping on the clutch pedal. If the tractor is always half-stepped on the clutch, and the foot is placed on the clutch pedal for a long time, the clutch will often be in a semi-engaged and disengaged state, making the clutch It is in a semi-slip state during operation, which accelerates the wear of the clutch friction plate and pressure plate, and reduces the ability of the clutch to transmit torque. It is easy to cause the clutch to slip and burn the friction plate. The end face of the flywheel is ablated and pulled, and the clutch disc spring is annealed. When driving a tractor, you generally do not need to step on the clutch except for starting, shifting and braking at low speed, and you generally do not need to step on the clutch at other times. At this time, do not always step on the clutch pedal.

Correct operation of the tractor when starting.

When the tractor starts, it is necessary to depress the clutch to engage the gear. When depressing the clutch, depress the clutch pedal quickly, and go all the way to the end, so that the clutch can be completely separated, then engage the gear, and then release the clutch pedal; when releasing the clutch pedal, Operate according to the principle of “fast first, then slow”, that is, the free stroke before the clutch is not engaged can be lifted slightly faster, when the clutch starts to engage and appears semi-linked (the engine sound changes at this time), it should stop for a while, and then Slowly lift the clutch pedal (at the same time gradually add the throttle), that is to say, in the process from semi-linked to fully combined, the pedal should be lifted slowly to make the clutch engagement smooth, and while the clutch pedal is slowly lifted, according to the size of the engine resistance Gradually step on the accelerator pedal, the operation of the accelerator should be smooth and appropriate, so that the tractor starts smoothly. After the clutch is fully engaged and the tractor starts smoothly, you should quickly remove your foot from the pedal and place it under the pedal. When the tractor is not using the clutch, it is strictly forbidden to put your foot on the clutch pedal.

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Details can be accessed by clicking here:https://www.syclutch.com/news/tractor-clutch-use.html

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Introduction of performance advantages of valve bag making machine

With the in-depth advancement of industrial automation, valve pockets are more and more used in the packaging of various industrial products, such as: grain, cement, lime, fertilizer raw materials, and chemical products. Because of its good sealing and moisture resistance, it is deeply loved by users. The following bag making machine manufacturers will give you a detailed introduction to the performance and advantages of valve bag making machines.

Performance of valve bag making machine

HD100-IB Square Bottom Machine

1. Mechanical properties

The glue-free hot-pressing process seals firmly and safely, and the entire bag body is evenly stressed in the event of a drop, avoiding the weak link of the sewing pinhole of the sewing bottom bag. At the same time, the valve bag is conveyed by the permanent magnet chain in the bag making machine, which will not damage the bag body, and the position is accurate during transportation. By rationally setting the punching device, the bottom seal of the bag and the valve mouth piece are bonded to each other, and the valve mouth edge is firmer, which can ensure that the high-speed filling bag is more stable, and the quality and yield of the valve bag production are ensured.

2. Use performance

(1) Good sealing: Use the bag tube with film to ensure the sealing of the bag body. At the same time, there is no needle stick during the processing, and the leakage of powder is not easy to occur after filling.

(2) The valve pocket is characterized in that it is automatically closed after the valve port is filled, and the degree of closure is high. If necessary, it can be tightened by hot air pliers to achieve the degree of tight closure. After filling, there is no leakage, and it is clean and beautiful. , Surface packaging without adhesive turbidity or other stains.

3. Automation performance

(1) Equipped with a double-roller micro-hole punching device, when powder products such as cement are filled at high speed, the fine micro-holes can ensure that the air in the bag can be quickly discharged to achieve higher efficiency filling. And because the micropores are fine. Coupled with the configuration of the two-way microporous roller, the leakage of the powder filling can be avoided, and a good waterproof and moisture-proof effect can be achieved.

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Details can be accessed by clicking here:https://www.lyhuatianm.com/products-information/performance-of-valve-bag-making-machine.html

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WHAT ARE THE USES OF CALCIUM HYDROXIDE

When it comes to calcium hydroxide, many people may not know what it is. It should be more familiar with slaked lime and slaked lime, especially in chemical experiments and physical experiments. So, in addition to being able to do experiments, do you know any other uses for this calcium hydroxide?

WHAT IS CALCIUM HYDROXIDE

Calcium hydroxide is a fine white powder produced by a professional calcium hydroxide production line, which is odorless and slightly bitter in taste. It is easy to absorb carbon dioxide and become calcium carbonate when placed in the air. It is made of calcium oxide, that is, quicklime, digested with water, dried, sieved, and air-selected (or crushed by an extension machine).

The chemical formula Ca(OH)2, commonly known as slaked lime and slaked lime, is formed into two layers after adding water. The upper aqueous solution is called clarified lime water, and the lower suspension is called lime milk or lime slurry.

The supernatant clear lime water can test carbon dioxide, and the lower turbid liquid lime milk is a building material. Calcium hydroxide is a binary medium and strong base (calcium hydroxide is considered to be a strong base in the middle school stage, but in fact it cannot be completely ionized in water. It has the property of alkali and has a corrosive effect on skin and fabrics. It has a wide range of applications in industry. It is a commonly used building material, and is also used as a fungicide and chemical raw materials.

Calcium hydroxide is a strong alkaline substance with irritating and corrosive effects. Inhalation of dust is highly irritating to the respiratory tract and may also cause pneumonia. Eye contact is also strongly irritating and can cause burns.

USES OF CALCIUM HYDROXIDE

With the development of modern industry, lime has opened up a variety of uses in many emerging industrial sectors besides the main material of civil engineering. Such as metallurgy, glass, alkali sugar, paper, food, medicine, feed, leather, calcium carbide and organic chemicals, carbonized bricks, carbonized plates and soil improvement, water treatment, gas purification, stone cutting aids, soil stabilizers, A large amount of lime is used in concrete conditioners, chemical reagents, gypsum board caulking coagulants, building adhesive ingredients, calcium alkane sulfonates, pharmaceutical acid stoppers, astringents, hard water softeners, and plastic fibers.

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Details can be accessed by clicking here:https://www.ly-gaifeng.com/blog/calcium-hydroxide-use.html

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How to distinguish the pros and cons of auditorium chair leather?

Nowadays, auditorium chairs have been widely used in theaters, cinemas and school auditoriums. Due to the increasing market demand year by year, a large number of manufacturers have also emerged, but there are still many black-hearted manufacturers selling substandard auditorium chairs.

For leather auditorium chairs, special leather is used, which must be treated with anti-ultraviolet, heat-resistant, light-resistant, wear-resistant, etc., and the cost is high. Therefore, some unscrupulous manufacturers will use other low-priced leather to recharge. Consumers are buying leather auditoriums. When using the chair, pay attention to distinguish the true and false leather, the pros and cons. Let’s take a closer look at how to distinguish the quality of auditorium chair leather!

Multimedia classroom soft chair

1. Document Law

The leather of the original factory has a clear source, and the basic information such as the production place, the tannery label, the leather test table, the leather use authorization letter, etc., is indispensable.

2. Label method

For genuine leather, the date of manufacture, the name and area of ​​the leather factory, etc. will be marked on the back. (The date of manufacture should not be too long, and if the leather is more than 3 years old, you should pay attention to whether there is mildew).

3. Viewing method

Under a 30x magnifying glass, it can be seen that the leather surface is like the surface of the moon, with craters and holes, and its air permeability is good. Cut the leather crosswise with a blade, and it can be seen that the color of the leather from the outer layer to the inner layer must be the same. Pay attention to whether there is a different color under the outer layer, and avoid buying second-hand leather that has been dyed or changed color.

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Details can be accessed by clicking here:https://www.aoyangschoolfurniture.com/aoyang-news/auditorium-chair-leather-identification.html

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What is the reason for the high noise of spur gear drive?

In addition to running accuracy, load capacity and fatigue life, noise is also an important indicator of the performance of a spur gear drive. Noise not only affects the operating environment of the equipment, but also affects the gear transmission accuracy and the overall operation and transmission of spur gear drives. With the successive issuance of ISO14000 and ISO18000 standards, controlling its transmission noise becomes more and more important.

The reason for the high noise of spur gear drive

SG-I Spur Gear Slewing Drive

1. Influence of gear accuracy: Gear accuracy is often designed with economic benefits as the basis, ignoring the impact of accuracy on drive noise and backlash. When the gear accuracy cannot be reached, it will increase the operating noise.

2. Influence of gear width: Under the condition of constant torque, the noise curve gradient of large tooth width is lower than that of small tooth width, and the noise of small tooth width is relatively large.

3. Influence of tooth pitch and pressure angle: Small tooth pitch can contact more gears at the same time, the overlap of gears increases, and the noise is larger.

4. Influence of gear displacement coefficient: When the gear transmission performance is improved, the bearing capacity, the displacement coefficient, the central moment, etc. are not suitable for operation, it is easy to generate noise.

5. Speed ​​control: The noise of the spur gear drive is also different at different speeds. With the increase of the speed, the noise of the drive will also increase.

6. Influence of dynamic balance: Misalignment of assembly will lead to unbalanced operation of the shaft system, and in the state of semi-loose and semi-tight gear meshing, it will lead to aggravation of driving noise, and unbalanced gear assembly will affect the accuracy of the transmission system.

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Details can be accessed by clicking here:https://www.ldb-bearing.com/ldb-bearing-knowledge/the-reason-for-the-high-noise-of-spur-gear-drive.html

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What should I do if the linear vibrating screen fails?

The linear vibrating screen is driven by double exciters. When the two exciters are rotated synchronously and in opposite directions, the exciting forces generated by the eccentric blocks cancel each other in the direction parallel to the motor axis, and in the direction perpendicular to the motor axis The stack is a resultant force, so the motion trajectory of the screen machine is a straight line. The two motor shafts have an inclination angle relative to the screen surface. Under the combined force of the exciting force and the self-gravity of the material, the material is thrown up on the screen surface and moves forward in a straight line, so as to achieve the purpose of screening and grading the material.

Can be used to automate operations in the assembly line. It has the characteristics of low energy consumption, high efficiency, simple structure, easy maintenance, and fully enclosed structure without dust spillage. The high sieving mesh number is 400 meshes, which can screen out 7 kinds of materials with different particle sizes. In the daily use of the linear vibrating screen, it is inevitable that some damage will not occur. The following vibrating screen manufacturers will introduce the common faults and solutions of the linear vibrating screen in detail.

Linear vibrating screen

1. Pipe beam fracture

If the wall of the tube beam is too thin, it may cause fracture. In this case, the same type of thick-walled tube or a larger type of tube beam should be used. But it should not be too large or too thick, because this will increase the vibration quality of the sieve and bring about many problems; the connection of each sieve plate of the dehydration and de-intermediation screen must have horizontal and vertical layers. If there is no vertical layer, water The pipe beam will leak from the gap between the screens and the pipe beam will be easily broken at the flushing place; the wider the screen, the easier the pipe beam will be broken.

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Details can be accessed by clicking here:https://www.hsd-industry.com/news/common-problems-of-linear-vibrating-screen/

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Detailed explanation of the selection of briquetting machine

There are many types of ball press equipment, 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.

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

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