Tuesday, January 14, 2020

Dealing with problems during operation of charcoal machine

1. the rationale why the kiln doesn't turn off: the sole reason for this problem is that the kiln leaking air. Solution: the answer is extremely simple, and repair the leaks in time.

2. Reasons for poor carbon shrinkage or insufficient hardness: There are two main reasons:

a. The carbonization process is just too fast. b. The temperature isn't high enough. Solution:

A. The carbonization process is just too fast: too fast carbonization will inevitably cause cracking of charcoal. Once the charcoal cracks an excessive amount of, it'll be difficult to shrink. cannot be too high. Generally don't exceed 300 degrees.

Website:https://charcoalmachines.com/charcoal-machine-production-line/

B. Insufficient temperature for heating: When the temperature of coal smelting is elevated, the temperature doesn't reach the specified temperature. Generally, the charcoal can shrink well only the temperature of charcoal reaches 800 degrees or higher. the upper the temperature of charcoal, the higher the shrinkage. However, the upper the temperature, the lower the speed of charcoal and therefore the higher the value. it's generally recommended to boost the temperature to 800 degrees.

3. Reasons for several carbon cracks: mainly the temperature of the carbonization process is just too high, or it's going to be an inherent defect of the wood chip stick. Solution: If it's not an inherent defect brought by the wood chip stick, then you want to concentrate to control the temperature of the carbonization process, and therefore the temperature of the carbonization process shouldn't exceed 300 degrees. If it's an inherent defect of the wood chip stick, please attend the molding question answer in Chapter 4 to seek out an answer .

4. Reasons for top carbon volatility: the sole reason is that the temperature isn't enough. Solution: Please extend the heating time and lift the temperature above 800 degrees.

5. Exceeding the quality of carbon ash features a great impact on the chemical quality of carbon. Not only can products not be exported, but even domestic sales are affected in severe cases.

Reason: the most reasons are as follows: A, the staple isn't clean, B, the staple features a high ash content, C, the carbonization temperature is high, and therefore the temperature rise time is just too long.

Solution: A. The raw materials aren't clean: On the one hand, the most method to unravel this problem is to regulate the transportation process of the raw materials to make sure that the raw materials aren't polluted during transportation; on the opposite hand, to regulate the storage conditions of the raw materials and check out to avoid wind and sand and soil. Pollution. At an equivalent time, the source of raw materials must be controlled. B. The ash content of the raw materials is high: for instance, the ash content of rice husks, straws, weeds, etc. is comparatively large, therefore the ash content of the charcoal is comparatively large. Generally speaking, the charcoal can't be utilized in barbecues. The industry can only be utilized in industry. C. High carbonization temperature: If the temperature within the carbonization process is just too high, the carbon element will escape with the mixture of hydrogen and oxygen. during this way, the carbon is going to be relatively light, and therefore the ash won't escape, which suggests that the ash content of the carbon Relatively increased. D. Warming up time is just too long: an equivalent as above.

6. Reasons for insufficient carbon heating value: There are many specific reasons, like high ash content, the low carbon content in raw materials, high volatile content, insufficient carbonization, insufficient carbon temperature, etc. Solution: The temperature didn't reach the specified temperature during the carbon refining. Generally, the charcoal can shrink well only the temperature of charcoal reaches 800 degrees or higher. the upper the temperature of charcoal, the higher the shrinkage. However, the upper the temperature, the lower the speed of charcoal and therefore the higher the value . it's generally recommended to boost the temperature to 800 degrees.

Thursday, January 9, 2020

How is charcoal made?

Carbonization is one of the most important processes in charcoal production. It is not the most expensive, but it requires the most experience. Some people say that the carbonization process is the risk of charcoal production. If you control carbonization, your entire charcoal production process will save a lot of costs and reduce waste of resources.

No matter if you use raw wood to produce charcoal or wooden corner waste to make mechanical charcoal, their raw materials are theoretically wood. If the moisture content of the wood is too high, the charcoal content of the produced charcoal will be low, so it cannot be regarded as good quality charcoal. The main thing we say about charcoal is its charcoal. If the content of charcoal is low, what charcoal is called and what is the value of use, do you think this is the reason? So no matter what method or raw material you use to produce charcoal, it is best to dry the raw material. Dry raw materials are one of the primary guarantees for producing good quality charcoal.

During the entire carbonization process, the wood is maintained at a temperature of about 100 ° C or lower in the carbonization equipment. At this temperature, the moisture in the wood is evaporated until it is zero, and then the burning temperature of the wood is raised to 280 ° C. This step The energy comes from some wood burning heat absorbed by some carbonization equipment, it is an energy absorption or endothermic reaction.

When the wood is dried and heated to about 280 ° C, a pyrolysis reaction occurs, and the wood begins to decompose into charcoal, water vapor, methanol, acetic acid and more complex chemicals, mainly in the form of tar and non-condensable gases composed of hydrogen, carbon monoxide and carbon dioxide. Air is controlled in the kiln during this process, and the oxygen in it is absorbed by the combustion of wood to become carbon dioxide, so there is still nitrogen in the kiln.

The wood continues to burn in the charcoal kiln. This process is called an exothermic reaction. As the exothermic reaction continues, the temperature in the kiln is maintained at about 280 ° C. When it continues to burn, it will leave black lumps in the charcoal kiln. This is charcoal. Due to the low carbonization temperature of the charcoal produced in this way, unless a further external heat source is provided, the maximum temperature in the kiln is about 400 ° C. The fixed carbon content of this charcoal is about 65% -70%, and the ash content is 3-5. %, But it will have a high volatile content. The volatile content of different tree species may be different, but it will generally reach 30%. By further heating, the fixed carbon content of charcoal will increase, and the volatile matter will be decomposed. The temperature in the kiln reaches 500 ° C, the carbon content of charcoal will rise to 85%, and the volatile matter content will drop to about 10%. At this temperature, The charcoal production is about 32% -35% of the weight of the wood. Therefore, the theoretical yield of charcoal varies with temperature, and the volatile tar content in charcoal is also related to the carbonization temperature.

When burning charcoal, the lower the carbonization temperature, the more volatile components of the produced charcoal. As a result, there will be an acidic taste when burning charcoal. This is because charcoal contains a large amount of acidic corrosive tar. This charcoal makes barbecue charcoal, which will change the taste of food, and there will be flames when it is calcined. Good commercial charcoal should be charred at a temperature of about 500 ° C, and about 75% of the fixed carbon.

The production of charcoal is also related to the quality of the raw materials. Good wood has higher lignin content because of its hard wood. In theory, the harder wood is more suitable for producing charcoal, and the harder wood is more suitable for producing charcoal. However, when carbonizing in a charcoal kiln, it is not necessary to put more wood as dense as possible, because if the wood is placed too densely, the wood will be easily broken during carbonization, because the temperature in the kiln rises too quickly and the volatile content decreases. The brittleness of charcoal. Basically, a temperature of 450 ° C to 500 ° C is the best balance between firing charcoal and maintaining a fixed charcoal.

There are many factors that affect the charcoal production and the conversion rate of wood charcoal. Often the charcoal capacity is too low or the waste of raw materials is caused by many factors. Then we try to avoid the factors that may cause problems. Usually we can choose some harder wood as the raw material for charcoal. The firewood should be as dry as possible, and the wood with a diameter of more than 20cm must be split and burned. Otherwise, it is easy to produce charcoal slag and scraps and waste wood materials. When burning charcoal, we must pay attention to the balance of temperature in the charcoal kiln. It is necessary to make the whole kiln reach a carbonization temperature of 500 ° C, but sometimes this is difficult because the irregular air flow in the charcoal kiln causes many raw materials to be burned into charcoal And some are still new. To improve the charring efficiency and quality of charcoal, a well-designed charcoal kiln is very important. A good charcoal kiln not only has good air tightness, but also has a balanced air flow, which does not appear: "cold spots", and the overall temperature in the kiln can quickly rise to a carbonization temperature of 500 ° C.

Friday, December 27, 2019

How to make yogurt with a yogurt machine

Yogurt is a healthy drink suitable for all groups, whether it is children, adults or the elderly. Summer is hot, drinking a glass of cold yogurt is definitely one of the most enjoyable things in life. Many consumers often go to the store to buy yogurt, but there are also many people who choose to buy a yogurt machine to make their own yogurt while enjoying the yogurt, they can also enjoy the fun of making it. Today, I will share with you how to use a yogurt machine to make yogurt.

How to use yogurt machine-introduction of the yogurt machine

A yogurt machine is a machine for making yogurt. It provides a constant temperature device for milk fermentation between 35-45 degrees. Under this environment, probiotics multiply, lactose in milk is converted into lactic acid, and milk is fermented into yogurt.

Although there are many types of yogurt machines on the market, they can be divided into two categories: one is a full-automatic type, which is directly heated by electricity, without a control circuit, and uses a heating component of appropriate power to control the temperature. The second is an electronic control type. Various control circuits, such as temperature and time control, are added to the machine to control the on and off of the heating circuit. It can be seen that the main difference between the two yogurt machines is whether they have a control circuit.

How to use yogurt machine-how to make yogurt with a yogurt machine
1. Disinfection. Freshly-purchased yogurt machines generally go through the factory and into the store. After going through many procedures, they cannot be used directly because there will be a lot of bacteria attached to them. After you buy them, you must first wash them with detergent, and then use boiling water to iron the internal container So that it can be used, but do not put the whole machine into the water.

2. Use a suitable yogurt source. If it is made from yogurt source (yogurt source refers to pure yogurt or lactic acid bacteria), then it should be added in a ratio of 1:10 or 1: 6. Pay attention to the amount to avoid affecting the production effect. These yogurts or probiotics Can not be used multiple times, it is recommended to use 2-3 times for intelligent cycling.

3. Short-term fermentation. Before adding yogurt, you can put some sugar and ferment for a short time, and then you can add some pieces of fruit, such as banana, grape, raisin, peach, and mango, and then ferment so that the taste will be better. Let you taste different flavors of yogurt.

4. Electric heating. This is a very important step. You must master the time and control it to about 8 hours as much as possible. Because the time is too long, the taste of the yogurt will be very sour. If you see that the fresh milk has coagulated, it is good to do it. Refrigerate After drinking, the taste will be better.

Yogurt is more nutritious than milk and is easily digested and absorbed. It is a rich source of probiotics. Drinking yogurt often can not only supplement various nutrients but also promote digestion and clean up the stomach. Buying a yogurt machine can allow the entire family to drink yogurt often, and the taste can be determined by themselves. The whole family can enjoy the fun of making yogurt and provide a healthy guarantee for your family. Do you need to hesitate? Shop for a yogurt machine for you and your family!

The principle and precautions of yogurt machine

If you let everyone choose one of yogurt and milk as your favorite, many people will choose the former, yes, the sweet and sour taste of yogurt is indeed unforgettable, and it is very good for digestion and gastrointestinal, young and old Anything. And we can actually make our own yogurt, just need a yogurt machine.

How yogurt machine works

Yogurt maker uses a constant temperature fermentation method, so the most basic function of a yogurt machine is heating and constant temperature. As long as it can be heated and can be kept at a suitable temperature, this yogurt machine can make yogurt; Another major factor is time, and the fermentation time of yogurt is not static. The quality of milk, the quality of yogurt fermentation powder, the ambient temperature, the initial temperature of milk, and the constant temperature of the yogurt machine will affect the length of fermentation time. With the timing control function, it is also useless and needs to be adjusted through practice. Changes in each factor will bring changes in time; and after the yogurt is fermented, even if the yogurt machine is automatically powered off, it cannot be ignored. It must be quickly placed in the refrigerator. Refrigerate to prevent the invasion of harmful bacteria, such yogurt is safe.

Note for yogurt machine

1. Bacteria powder needs to be stored frozen. Frozen bacteria powder should be left at room temperature for 10 minutes before use.

2. Don't repeat the kind of yogurt you made.

3. The container of the yogurt machine brand product needs to be thoroughly sterilized once after several times of production. This is the key to ensure the success and safety of the yogurt!

In addition to enjoying the delicious yogurt made by the yogurt machine, we also need to learn about the working principle and precautions of the yogurt machine, so that we can operate and maintain it more accurately and make our yogurt machine work in a more perfect state. Making better and better delicious yogurts give us a good mood all summer.

Wednesday, December 25, 2019

What are the benefits of dry ice cleaning

The advantages of dry ice cleaning are that dry ice cleaning can reduce downtime; reduce equipment damage; extremely effective cleaning of high-temperature equipment; reduce or reduce the use of solvents; improve worker safety; improve maintenance efficiency; reduce production downtime, reduce costs, increase production efficiency, the specific comparison is as follows:

Dry ice cleaning is widely used to quickly clean oil stains, paints, inks, adhesives, carbon deposits, asphalt, scale, rust, mold release layers, polyvinyl chloride resin, etc., and it can be used for small holes, uneven surfaces, and corners. Contact cleaning.

Economical and efficient cleaning is fast and has the best effect, which improves production efficiency and product quality. It can be directly cleaned online without stopping the work and increasing productivity; it does not damage the surface of the object to be cleaned and prolongs the life of the object being cleaned; online cleaning also avoids disassembly Accidental damage during cleaning of the object; no residue, avoiding environmental pollution caused by other cleaning processes and the cost of processing pollution.

Widely used to quickly clean oil stains, paints, inks, adhesives, carbon deposits, asphalt, scale, rust, a mold release layer, polyvinyl chloride resin, etc., non-contact cleaning of small holes, uneven surfaces, and corners, etc.

Economical and efficient cleaning is fast and has the best effect, which improves production efficiency and product quality. It can be directly cleaned online without stopping the work and increasing productivity; it does not damage the surface of the object to be cleaned and prolongs the life of the object being cleaned; online cleaning also avoids disassembly Accidental damage during cleaning of the object; no residue, avoiding environmental pollution caused by other cleaning processes and the cost of processing pollution.

Safe and environmentally friendly CO2 is non-toxic, meeting the safety and environmental protection requirements of USDA, FDA, EPA; no secondary pollution during cleaning; complying with relevant laws and regulations of cleaner production in China; replacing toxic chemicals to clean, fundamentally avoiding harm to the human body; operating safety High sex; low-temperature sterilization in food and pharmaceutical industries.

Safe and environmentally friendly CO2 is non-toxic, meeting the safety and environmental protection requirements of USDA, FDA, EPA; no secondary pollution during cleaning; complying with relevant laws and regulations of cleaner production in China; replacing toxic chemicals to clean, fundamentally avoiding harm to the human body; operating safety High sex; low-temperature sterilization in food and pharmaceutical industries.

Easy operation using on-site compressed air, convenient and practical; simple operation, cleaning with dry ice is different from sandblasting, we all know the fact that similar to steel blasting, plastic sandblasting and soda blasting, dry ice spray medium-dry ice particles in high-pressure airflow Accelerate and impact the surface to be cleaned. The rapid exchange of heat between dry ice particles and the cleaned surface causes the solid dry ice to rapidly sublimate into a gas. The dry ice particles expand by nearly 800 times in volume within a few thousandths of a second, thus causing a "micro explosion" at the point of impact. I don't know how many times this paragraph is used, it is a conceptual thing that describes carbon dioxide cleaning.

Because there is no abrasion, dry ice cleaning can be widely used for cleaning various materials. Low temperature makes dry ice cleaning have unique thermodynamic properties and affects the mechanical properties of adhered dirt. Thermal shock occurs due to the temperature difference between the dry ice particles and the cleaning surface. Reduced material temperature and increased brittleness Dry ice particles can crush the fouling layer. The temperature difference between two different materials with different thermal expansion coefficients will destroy the bonding between the two materials. Even if the surface is directly impacted at a very high speed, the kinetic energy impact of dry ice is very small compared to sand.

Because dry ice is not hard and vaporizes at the moment of impact, the jet speed Mach value is usually between 1.7 and 3.0, depending on the design and air pressure. Therefore, dry ice cleaning can be widely used for cleaning various materials. The cleaning of this piece of content has been pretty good recently. In short, be sure to remove this fake idiot, and from the cleaning of the industry, use solid dry ice to fill the shameless villain's belly and let it try to Take a look at the benefits of dry ice cleaning the large intestine, defeat it completely, and leave it nowhere to hide.

Discontinued, cooled, and reassembled equipment during traditional cleaning;

Dry ice cleaning can be used to clean the place where the naked eye can not see the traditional cleaning. Production can be resumed immediately after cleaning without disassembly and cooling and can be cleaned online. Pollution Problems The traditional cleaning materials will form secondary pollutants;

Dry ice cleaning has no secondary pollution, and dry ice sublimates from the contact surface. The traditional cleaning, sanding, and soaking methods are time-consuming and labor-intensive;

Dry ice cleaning is a quarter of the time or faster than traditional cleaning. Hazard to equipment Traditional cleaning will wear and pollute the area being cleaned;

Dry ice cleaning is harmless and environmentally friendly. Safe traditional cleaning is harmful to the environment and human body, and cannot be used in a live environment;

Dry ice cleaning is a standard safety precaution and can be used in a charged environment. Expenses Traditional cleaning will add additional cleaning product costs and secondary processing costs; dry ice cleaning requires only a small amount of dry ice costs.

How does a dry ice machine work?

The dry ice machine uses dry ice particles with extremely low temperatures and sprays the using parts under the action of compressed air. The result is that the dirt on the surface of the object will be sharply frozen to the point of embrittlement to burst.

In the process of operation, when the dry ice particles are counted into the cracks of the dirt, the vaporization phenomenon will occur immediately. At this time, the volume will expand instantly to nearly 600 times, so the effect of use is to bring the dirt away. Object surface. The dry ice machine has an excellent cleaning effect on the process of use. For the dry ice machine cleaning process, the following three steps are mainly used.

1. Using the power of impact, the purpose of peeling dirt can be achieved.

2. The existing temperature difference can be used to improve the peeling effect and speed.

3. Adhesion can be removed by sublimation.

After all, the dry ice machine is a used machine. In the process of use, in addition to ensuring the effect of use, attention should also be paid to the safety of use.

Thursday, December 12, 2019

Wood shaving machine introduction

Since ancient times, woodworking has produced a variety of waste materials from factories. Maybe people think that these waste materials have no use-value, but today Pearl wants to tell people all over the world that the use of woodworking processed waste is vast, and everyone knows that hand-made shavings are generally It can't be beaten by machines, but since 2007, our company has developed a shaving machine.

The shavings produced are the same as those produced by the furniture factory. The machine can process logs and branches (edges of branches and boards into shavings.) Fully automatic feeding equipment greatly improves production speed, and also saves time and manpower. Total supporting power It can be produced by a single motor. This product is available in large and small sizes. An automatic wood shaving machine includes a machine frame, which is mainly used for mass production of thin wood shavings with uniform thickness.

The platform placed on the rack, the knife holder fixed on the platform, the wood enters the machine through the feed port, and the inside of the machine passes through the slicing of the blade to punch the wood shavings. The size and thickness of the wood shavings are the same as those of the wood shavings hand-made difference. The transportation company makes brittle goods transportation fillings, use: can be used as particleboard (plywood) paper mill as raw material for wood pulp paper. It is used as a filling material for small pigs, cattle, sheep and various animals, and can also be used as bioenergy.

Wood shaving machine features:

The wood shaving machine can process logs, branches (branch), and board edges into shavings. The shavings produced are the same as those produced by furniture factories. Full-automatic feeding equipment greatly improves the production speed and saves time and manpower. The total supporting power is small. The diameter of the feeding port is 15cm and the width is 18cm. The output can reach 500kg-1000kg per hour. The shaving thickness can be adjusted, 0.1 --1.5, this product has large and small for you to choose.

Simple requirements for each step of charcoal machine

Each production process of the charcoal machine has a direct relationship with the carbon production effect. Charcoal mechanism The charcoa...