How to Operate high pressure briquette machine with economic way? 

If you want to increase the output of high-pressure briquette machine, you must do these 4 things!

High-pressure briquette machine are mainly used to press powdered materials that are difficult to form. The features are high forming pressure, adjustable main engine speed, and a spiral feeding device. For briquette equipment, no matter how energy-saving or how high the forming rate is, it is all in vain if the output is not up to standard. So how to increase the output of high-pressure briquette machine is a question that many companies are very concerned about. Next, DMSMAC, a briquette machine manufacturer, will reveal to you how to increase the output of high-pressure briquette machine.

carbon black briquette machine

Ensure trouble-free operation of equipment: When people are sick, they may not want to move. The same is true for mechanical equipment. This is basic and important. If there is a problem with the equipment in the production line such as the briquette machine, the entire production line will not be able to operate, not to mention the output problem. Therefore, it is necessary to regularly maintain all equipment, and the staff must operate in a standardized manner.

If you want to increase the output of the briquette machine, the preliminary preparation work is indispensable: large-scale production cannot be completed only with a briquette machine, so companies generally would build a briquette production line. The production line consists of many equipments, in addition to the briquette machine, there are also crushers, conveyors, dryers and other machines. Therefore, it will not work if only the briquette machine has a high production capacity while the production capacity of other components cannot keep up.

Increase the roller speed, but not blindly: the faster the roller rotates per unit time, the more material can be pressed. Therefore, some users will greatly increase the rotation speed. However, this also has a disadvantage: which is that the strength of the briquette does not meet the standard. Therefore, the roller speed can be increased only when it does not affect the molding quality.

Ensure the smoothness and hingh efficiency of each link of the briquette production line: the briquette machine and auxiliary equipment such as feeders and crushers constitute the briquette production line. Every link of the entire production from beginning to end (such as communication and coordination of operators, supply of materials, etc.) must be guaranteed to be smooth.

The larger the model of the high-pressure briquete machine, the higher the production capacity per unit time. This is beyond doubt. However, some users, based on average production requirements, if they purchase a too large briquette machine model, it is obviously a bit wasteful, and the investment amount will also increase a lot.

The difference between high-pressure briquette machine and Normal briquette machine is not just the pressure.

When choosing briquette machine, many companies are not sure whether they should choose high pressure or low pressure. It seems that it is just a difference in pressure, but is it really so? How should we choose? On the surface, it is a difference in pressure, but in fact it is a difference in molding process. High pressure molding uses a molding process without binder, and low pressure molding uses a molding process with binder. For example:

High-pressure briquette machine is suitable for powders with small particle size and low water content, and the formed briquettes have strong anti-powder falling ability. The coal dust collected from the process dust removal system has small particle size and low water content, so it is suitable for this treatment. During the treatment process, the coal dust is first pre-pressed by the pre-pressing machine, and then enters the main shaft roller of the dry powder briquette machine (high-pressure briquette machine) etc. for pressing. As the main shaft roller rotates, the material is gradually compressed, and the pressure reaches the maximum value at the tangent point of the two rollers and then gradually decreases. The volume of the compressed material gradually rebounds and expands until it leaves the ball socket.

Briquette machine is a molding machine that adds a certain proportion of binder to the powdered material, stirs it evenly, and then passes it through a relatively low-pressure briquette machine etc. to achieve the molding process.This low-pressure molding method is mainly used to deal with environmental dust removal ash that is not convenient for high-pressure molding, and can also deal with ultra-dry coal dust collected by coal humidity control process dust removal. After the coal dust collected by environmental dust removal or process dust removal is concentrated in the transition ash bin, it is transported to the final ash bin through the air flow conveying device, enters the mixer and mixes with the transported tar slag, and then passes through the second mixer to mix again and send it to the low-pressure briquette machine. After being pressed by the briquette machine, the coal briquette formed by the coal dust and tar slag is discharged onto the belt conveyor and sent to the coal tower.

In general, high-pressure molding does not require the addition of binders, only relies on its own strong pressure to achieve the molding process, and adopts hydraulic adjustment roller structure. Low-pressure molding, on the other hand, uses equipment such as coal briquette machine to mix materials with a certain amount of binders during the pressing process to achieve the requirements of high hardness, high density, and high strength of the final briquette. Therefore, enterprises need to make choices based on their own material conditions. Only the ones that suit them are good. Don't choose blindly.

carbon black briquette machine

Briquette Machine Material Filling Skills And Precautions

The high-pressure briquette machine is a kind of forming equipment that uses a rotating roller with a hemispherical groove to press loose powder into balls. When the briquette machine is working, the material needs to be fed into the equipment, then the rollers are pressurized, the final briquettes fall off and are transported to the product warehouse through the conveyor. The filling methods we usually see include: suction method, fall method, top filling method, and lower filling method. So what are the skills and precautions for different material filling methods?

Suction Method

Since the particle size of the powder generally used is between 40 and 200 μm, if the falling method is used, when the mold cavity is narrow, it is difficult for the powder to enter, and the speed is slow, which will affect the utilization rate of the forming machine. To improve this phenomenon, the suction method can be used. That is, when the powder filling box reaches the top of the mold cavity, the middle mold moves up. This action creates a vacuum suction phenomenon, which can speed up the powder entering between the rollers and the completeness of the filling. It is very helpful for filling materials with complex shapes and sharp corners, or thin-walled materials less than 1 mm.

Fall Method

This is the traditional method, in which the material is transported to the feed port of the briquette machine through a box feeder, and the mixed powdered material is automatically fed into the equipment in a free fall manner. When this method is used to fill powder, the filling speed and uniformity often depend on the cross-sectional area of the mold cavity and the speed of the powder.

Top Filling Method

After the powder is filled into the rollers, it moves upward to the height of the mold surface. This is also very helpful for thin-walled parts. Because the gap between the core rod and the middle mold is small when thin-walled parts are formed, bridging is easy to occur, which hinders the subsequent powder from falling in. If the core rod is at the bottom first, the roller space of the briquette machine can be increased to facilitate filling. After the filling is completed, it can be moved upward to improve these problems.

Lower Filling Method

When filling is completed, the middle mold moves upward again, so that the powder moves relatively downward and below the mold surface. This can prevent the powder from spraying outward when the upper punch moves downward to the middle, and can also reduce the phenomenon of powder being stuck between the upper punch and the middle mold due to the push-pull angle or arc angle of the middle mold.

The principle of selecting molding pressure is not that the higher the better. Under the condition that the pressure can be adjusted, choose a reasonable molding pressure to avoid pressure feedback and rebound (hemisphere) phenomena. When using it, we should pay attention to the following points:

The agglomerated materials after stirring and fermentation need to be mixed or homogenized for the second time to make the briquetting machine feed evenly, control the molding compression ratio, and achieve a high balling rate and good strength.

Solve the problem of loading raw coal bin for mixing and fermenting materials.

The feeding of the briquetting machine must be continuous, uniform and without material stagnation.

The above tips and precautions on material filling for briquette machine are provided by DMSMAC Machinery High Pressure Briquette Machine Manufacturer.

Lime Briquette Machine

Besides material size, what else affects the molding effect of mineral powder briquette machine?

With the increasing shortage of resources and energy, various waste materials produced by the metallurgical industry that were previously thrown away have been compressed and reused. The mineral powder briquette machine is a high-pressure equipment that can press various mineral powders and waste materials into balls. Nowadays, the utilization of waste materials in the metallurgical industry has attracted more and more attention, and the number of mineral powder briquette machine’ s users has increased. So what is the briquette-forming effect of the mineral powder briquette machine?

Many consumers complain that the quality of the briquettes is unstable after purchasing the briquette machine, sometimes good and sometimes bad. The main reason for this problem is the particle size of the material. For the mineral powder briquette machine, the material particle size is required to be below 5mm during pressing, preferably below 3mm, so that the balling effect is better, because the smaller the material particle size is, the closer the particles are. From a physical point of view, if the particle size is small, the gap between them is small, and if the particle size is large, the gap is large. Therefore, before the mineral powder briquette machine is pressed, the grinding and crushing of raw materials must be in place, so that the strength of the final briquettes will be higher.

In addition to material reasons, what other factors affect the molding of mineral powder briquette machines?

First of all, if the mineral powder briquette machine is equivalent to a "stove", the adhesive is an indispensable seasoning for cooking. The amount of adhesive used is also an important factor affecting the strength of the final briquette. Too high or too low the amount of adhesive is not conducive to molding. Some mineral powder briquette machines use 4%-8% adhesive, while some use 2-3%. Generally, we need to determine a better adhesive usage ratio through experiments.

Secondly, the amount of water also has a very important influence on the briquette forming effect. The amount of water is directly related to the quality of the briquette forming rate, curing time, initial strength, and later strength. The presence of an appropriate amount of water can act as a lubricant, reduce the internal friction of the forming system, and improve the mechanical strength of the final briquette. If there is too much water, the water layer on the surface of the particles becomes thicker, which will affect the full density of the particles and reduce the mechanical strength of the final briquette. In addition, when the final briquette is dried with too much water, cracks are prone to occur, making the final briquette easy to break. The moisture content of conventional mineral powder briquette machine should be controlled between 8-15%. If there are special circumstances, consult the manufacturer to decide according to the actual situation.

High-pressure briquette machine steel industry application: waste recycling in steel production (converter sludge, iron oxide and production sludge briquettes)

Almost all steel factory in our country produce a large amount of sludge and iron oxide scale every day and every month. At present, those steel factory transport the sludge and iron oxide to the sintering plant as part of the raw materials for re-sintering, resulting in a low utilization rate of the raw materials and a large number of unfavorable factors:

Converter sludge and iron oxide scale increase costs invisibly during transportation, and also cause environmental pollution.

The low utilization rate of converter sludge and iron oxide scale in the sintering iron-making process not only causes waste of resources but also causes greater environmental pollution.

If converter sludge, blast furnace dust, continuous casting iron oxide, steel rolling iron oxide scale, etc. are pressed into balls by our company's high-pressure briquetting machine and then put into the converter, it can not only be used for steelmaking, but also play a role in slag making and lowering the temperature of molten steel. This greatly improves the utilization rate of these wastes, reduces the raw material consumption of steel factory, simplifies the process flow, saves funds, reduces costs, and reduces environmental pollution.

In the past ten years, our company has cooperated with domestic steel enterprises such as Taiyuan Iron and Steel, Handan Iron and Steel, Ji'nan Iron and Steel, Wuhan Iron and Steel, Kunming Iron and Steel and Laiwu Iron and Steel, and has done a lot of work in the use of waste sludge and other wastes, and has accumulated rich experience. For example, pressing the converter sludge into briquettes and directly charging it into the furnace for steelmaking can not only increase the output of molten steel by about 20%, but also the sludge is a good slag-making agent, and promotes the dephosphorization and desulfurization of the converter glue during steelmaking, reduces the consumption of oxygen, and increases the melting temperature of the slag at the end of smelting. It can be seen that the economic benefits of making full use of the waste of steel mills are very objective.

Iron Fines Briquette Machine

Raw Material Analysis

Iron and steel enterprises inevitably produce some wastes in the production process, and these wastes are mainly iron-containing, such as sintering dust, blast furnace gas ash, steelmaking slag, sludge, rolling iron oxide scale, etc. The above wastes are commonly known as iron-containing materials. At present, many steel factorys do not pay much attention to the utilization of these materials, so that it is common to treat them as garbage or cheap takeaways. With the improvement of enterprise management level, circular economy reuse has been paid more and more attention by enterprises. For example, in 1998, our company produced a sludge briquette production line with an annual output of 30,000 tons for Wuhan Iron and Steel Qingluo Company to utilize converter red dust and iron oxide scale, and achieved success, which brought huge economic benefits to the enterprise. Since then, it has promoted the rapid development of major domestic steel mills in the utilization of converter dust and iron oxide, so that enterprises have not only achieved rich economic benefits, but also greatly improved the environment.

Converter sludge. The main components of converter sludge are metallic iron, iron oxides, calcium oxide, carbon dioxide, etc. The iron content is 45%-49%, and other elements are CaO, SiO2, MgO, etc. These substances are good desulfurizers, slag-making agents and furnace repair agents after calcination.

Iron oxide scale. Continuous casting iron scale is a product of solid powder melted and oxidized on the surface of the billet used in the continuous steel casting process to protect the surface quality of the continuous casting billet and the heat transfer of the crystallizer. The melted protective slag forms a slag film and the scale formed by the oxidation of the billet and air will fall off and mix with the secondary cooling water to form a mud slurry, which is then dehydrated to form continuous casting iron scale.

The continuous casting protective slag is based on the silicate of SiO2-CaO-Al2O3, and is mixed with a mixture of fluorite, cryolite, sodium carbonate, sodium silicate and carbonaceous materials. The physical properties of continuous casting iron scale are similar to those of converter sludge, but the continuous casting iron scale has more slag-forming materials in terms of its composition (such as Na2CO3, Al2O3 and F-, etc.)

The continuous casting iron oxide has a smaller particle size, and does not need to be crushed to process the sludge briquettes, but the water content is relatively high, and it must be cooled and dried during processing. From the perspective of the steel plant site, after a period of storage, the continuous casting iron oxide scale becomes very dry, which can fully meet the needs of ball pressing. After testing, the iron content of continuous casting iron oxide scale is about 64.22%, which has the value of processing and utilization.

The iron oxide scale produced after steel rolling is mainly oxidized after the surface of the steel billet is heated. After dephosphorization in the dephosphorization machine, the oxidation product is produced. The main component is iron oxide, and its iron content accounts for more than 74%, and its utilization value is relatively high.

The particle size of rolled steel oxide scale is large, but it is loose, so it does not affect processing and does not need to be crushed. The water content of rolled steel oxide scale is very low, and it is very dry after two days of storage. Our company can directly press the iron oxide scale into briquettes at Anshan Iron and Steel Company. Steelmaking is directly made after briquetting, so it is a very good steelmaking material.

Through the above process, the current domestic steel mill sludge, steel rolling oxide scale, and continuous casting oxide scale are fully utilized, with a short process and high benefits, and the equipment investment can be recovered in half a year.

Coke Briquette Machine