What are the parts of the reduced iron briquetting machine?

The reduced iron briquetting machine is mainly used to directly cold-press metallurgical powders such as reduced iron into 3-6 kilograms of cylindrical or other shaped cakes under high pressure, which is convenient for storage, transportation and transportation, and is more convenient for the reduction of iron during the smelting process. The problem of not sinking on steel slag.

The reduced iron briquetting machine is mainly composed of the following components:

①Host: It is composed of frame, main hydraulic cylinder, pusher hydraulic cylinder, bottom hydraulic cylinder, matching mold frame and mold, pressure head, etc.

The frame part is composed of upper and lower beams and uprights. The upper and lower beams are all made of cast 45# integral steel parts. The upper and lower beams are connected by internal and external nuts with four columns to withstand the tension during work.
The main hydraulic cylinder eliminates steel castings and eliminates potential safety hazards. Ensure the service life and safety of the equipment.

The professional design of supporting mold frames, molds, indenters, and superior processing capabilities guarantee the excellent taste of the equipment. The punch of the die and the briquetting machine are equipped with high-strength wear-resistant steel that can be quickly replaced, model LINDUR-HDYJ420. The front end of the punch is equipped with a wear-resistant punch press ring that is easy to disassemble and install, so that it can extend its use. life. The relevant parts have been specially hardened or forged in the necessary parts.

②Hydraulic station: It consists of a motor, a hydraulic pump, a pump protection device, a professional control valve block and a piping system for connecting the briquetting machine. The design is reasonable and the quality is stable. Equipped with a cooling system to prevent the equipment from being unable to work continuously due to overheating of the oil.

③Console: It is composed of electrical system and plc control system.

Equipped with an adjustable text display, the action sequence and each action time are completely controlled by the PLC system, and can be adjusted by the operator at any time, which is convenient, fast, and easy to understand.

Our company is a professional manufacturer of development of briquetting machine. It is also the birthplace of China’s first high-pressure ball press, which filled the gap in China’s inability to produce that. In recent years, it has continuously introduced internationally-oriented and powerful double tooth-roller crusher, four tooth-roller crusher, powerful jaw crushers, hydraulic jaw crushers, special jaw crushers for carbon blocks, granulating, pelletizing and coking plants.

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How does the metal briquetting machine work?

The metal briquetting machine is a professional machine and equipment for forming metal powder materials in many fields such as the metallurgical industry and the energy industry. After the pressed metal powder is molded, it is very convenient and efficient in the use process. It also plays a role in the reuse of metal powder waste and saves resources.

The forming part is the key structure of the metal briquetting machine process. Whether its design is reasonable or not directly affects the forming quality of the metal briquetting machine. The main model of the metal briquetting machine is a pair-roll forming machine (that is, a ball press that people often call). It has a pair of cylindrical wheels with parallel axes, the same diameter, and a certain gap between each other. There are many on the roll skin. With hemispherical sockets of the same shape and size and regular arrangement, the pressing roller is the main part of the metal powder ball press.

The operating principle is: driven by the motor, the two wheels rotate at the same speed and opposite directions. When the material falls between the two pressure rollers, the joint begins to be compressed, and the raw material is produced between the corresponding two ball sockets. Volume compression; the roller continuously rotates, the ball socket is gradually closed, and the molding pressure gradually increases. When the distance between the two ball sockets is the smallest, the molding pressure reaches the maximum. Then the pair of rollers rotate to gradually separate the ball and socket, and the molding pressure decreases rapidly. Before the molding pressure is reduced to zero, the pressed metal powder begins to expand and break away, completing the whole process of pressing by the metal briquetting machine.

Performance characteristics:

1. After years of industrial use and improvement, the metal briquetting machine has obvious advantages such as high ball formation rate, low power consumption, compact structure, and easy maintenance and debugging. It is a relatively ideal press. Ball and granulation equipment.

2. The performance of the metal briquetting machine is similar to that of the coal briquetting machine and the desulfurized gypsum briquetting machine. It can press fluorite powder, mineral powder, metal powder, coal powder, coke powder and other materials to make them shape.

3. The metal briquetting machine is forced to squeeze the roller, so the product has the three characteristics of high density, high strength and high hardness, and the press roller of this machine adopts 650mn hard material, which has good wear resistance.

Suppressed material requirements:

1. The particle size of the material is 80-200 mesh.

2. Excessive impurities are not allowed in the material, otherwise the surface of the roller skin will be damaged.

3. The material supply must be satisfied, so that the ball formation rate can be guaranteed. The user needs to be reminded that the wear of the roller skin is severe when the metal is pressed into a ball. The user should pay special attention to the material of the roller skin when purchasing the metal briquetting machine, and it is best to use wear-resistant alloy forging.

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What are the advantages of super-high pressure briquetting machine products?

The super-high pressure briquetting machine can also be called a large-scale pulverized coal briquetting machine. It is a device that can press powdered granular materials into balls. The molding machine does not need to add a binder during the production process, and can be quickly and stably formed. The hardness of the finished ball can fully meet the needs of users. This super-high pressure briquetting machine can meet the production requirements of the entire briquette production line without purchasing mixers, dryers and other equipment. Luoyang Zhongyuan Mining Machinery Co., Ltd. can customize the ball press equipment according to the needs of users, provide free equipment configuration and quotation information, and reasonable site planning.

Product advantages of super-high pressure briquetting machine

1. Ability to customize finished products of different shapes according to customer needs;

2. The speed is stable, the molding rate is high, and the appearance of the pressed product is excellent;

3. With greater molding pressure, the quality of pressed products is significantly improved;

super high pressure briquetting machine

4. Smooth demoulding, less dust and less noise;

5. The molding system is stable and safe, the later maintenance workload is small, and the replacement of various parts is easy to operate;

6. Because the structure is relatively compact and simple, it occupies a small space and can work stably and continuously.

The hopper and spiral of the super-high pressure briquetting machine pre-presser can adjust the fine powder material with high gas content and strong fluidity. The silo and the feed inlet are enlarged to ensure sufficient material in the silo, and the material pressure of the pressing zone is greatly improved, which perform a better briquette forming effect.In addition,the whole silo adopt a closed structure,except for the air outlet,to ensure that the materials cannot overflow.According to our rich experience on briquetting, we have improved the lead, angle, length, precision of the spiral, so that the push material is more sufficient to facilitate the formation of the final briquettes.

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Description of the internal structure of the compound crusher

The compound crusher has a large crushing ratio, and the maximum crushing ratio can reach the output particle size. It can be adjusted arbitrarily, and is not affected by the hammer and liner wear; the structure adopts a non-screen setting, which crushes materials with high moisture content and large mud content. It is not easy to be clogged; the elastic adjustment mechanism is adopted, and the unbreakable materials can be automatically discharged without causing equipment damage; the bearings are arranged horizontally, with a long life, and can crush high-temperature materials (such as cement clinker); the rotor body structure of this machine is unique When crushing materials, the rotor body is hardly worn; the rear cavity is equipped with a screw rod or a hydraulic opening mechanism, and the wearing parts can be easily replaced without using the main equipment.

Structural advantages:

1. The structure is simple and reasonable, and the operating cost is low. Using the principle of rock-to-stone, the wear is small.

2. High crushing rate and energy saving.

3. It has the functions of fine crushing and coarse grinding.

4. It is less affected by the moisture content of the material, and the moisture content can reach about 8%.

5. The working noise is lower than 75 decibels (db level), and the dust pollution is less.

6. Suitable for crushing medium-hard and extra-hard materials.

7. The products are cubes with high bulk density and minimal iron pollution.

8. The impeller’s self-lining wear is small, and the maintenance is convenient.

compound crusher

principle:

The material falls vertically from the upper part of the machine into the high-speed rotating impeller, under the action of high-speed centrifugal force, and
The other part shunts the material around the impeller in the form of an umbrella to produce high-speed impact and crushing. After the materials collide with each other, they will form a vortex between the impeller and the casing. It is discharged to form a closed circuit for multiple cycles, which is controlled by the screening equipment to achieve the required finished product particle size.

The compound crusher is a kind of unscreened, adjustable fine crushing equipment optimized and designed on the basis of absorbing advanced fine crushing equipment at home and abroad. It can be widely used in the fine crushing of raw materials and clinker in cement plants, and can also be used for fine crushing operations. Dolomite, coke gemstone, lead-zinc ore, serpentine, blast furnace slag, coal gangue, phosphate rock and other medium-hard materials finely crushing operations, especially suitable for hard limestone, dolomite, granite, basalt and other artificial sand or high-speed Processing and crushing of road pavement stones.

Daily maintenance:

1. Regularly shut down and open the observation door of the vertical crusher to observe the internal wear of the crusher. The wear level of the center feed pipe, cone cap, upper and lower runner linings of the impeller, circumferential guard plate, and wear-resistant block should be replaced in time after wear. Or repair, and replace the wear-resistant blocks at the same time to ensure that the weight of the wear-resistant blocks is the same. It is strictly forbidden to open and observe the crusher during operation] to observe the internal working conditions, so as to avoid danger. If the impeller body is found to be worn, replace it in time and seek repair from the manufacturer.

2. The vertical crusher adopts special grade automotive grease or 3# lithium base grease. Appropriate amount of grease is added every 400 hours of work. After 2000 hours of work, the main shaft assembly is opened to clean the bearings. Generally, it works for 7200 hours and replaces the new bearings. The upper bearing of the main shaft assembly is the floating end, and the lower bearing is the fixed end. After assembly, the pulley should rotate flexibly when pulled by hand.

3. The tensioning force of the drive triangle tape should be adjusted appropriately to ensure that the triangle tape is evenly stressed. When driven by dual motors, the triangle tapes on both sides should be grouped and matched, so that the length of each group is as consistent as possible. It should be adjusted so that the current difference between the two motors does not exceed 15A.D. In the operation of the vertical crusher, because the equipment is a high-speed equipment, special attention should be paid to safe production. Relevant personnel should stay away from the equipment, and repairs should be carried out after shutdown if the machine needs to be repaired.

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What is the principle of magnetic bead method for nucleic acid extraction

The binding of nucleic acid to magnetic beads mainly relies on electrostatic, hydrophobic and hydrogen bonding. The DNA/RNA in the cell or tissue is released under the action of the lysis solution. At this time, the surface-modified superparamagnetic silica nanomagnetic beads “specifically bind” with nucleic acid to form a “nucleic acid-magnetic bead complex”. Then under the action of an external magnetic field, the complex is separated. After the eluate is washed to remove the non-specifically adsorbed magazines, desalted, and purified, the nucleic acid substance to be extracted is obtained.

The nucleic acid extraction principle is according to surface of superparamagnetic nanoparticles is modified and modified by nanotechnology to prepare superparamagnetic silica nanomagnetic beads. The magnetic beads can specifically recognize and efficiently bind with nucleic acid molecules on the microscopic interface. Using the superparamagnetism of silica nanospheres, under the action of Chaotropic salts (guanidine hydrochloride, guanidine isothiocyanate, etc.) and an external magnetic field, DNA and DNA can be separated from samples such as blood, animal tissues, food, and pathogenic microorganisms. RNA can be used in clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbiological testing, food safety testing, molecular biology research and other fields.

In fact, since testing institutions need to process a large number of samples every day, most of the nucleic acid extraction steps are carried out by means of an automatic nucleic acid extraction instrument with a magnetic bead method nucleic acid extraction kit.

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What is nucleic acid

There are many types of nucleic acid extraction kits，such as bacterial genomic DNA extraction kit ,whole blood genomic DNA nucleic acid extraction kit and etc. Today, we will mainly introduce the principle, use method and specific steps of the magnetic bead method nucleic acid extraction kit.

Nucleic acids are widely present in all animals, plant cells, and microorganisms. Nucleic acids in organisms often combine with proteins to form nucleoproteins.

According to different chemical composition, nucleic acid can be divided into ribonucleic acid, referred to as RNA and deoxyribonucleic acid, referred to as DNA. DNA is the main material basis for storing, copying and transmitting genetic information. RNA plays an important role in the process of protein synthesis, among which transfer ribonucleic acid, tRNA for short. Plays the role of carrying and transferring activated amino acids; messenger ribonucleic acid, referred to as mRNA, is the template for protein synthesis. Ribosomal ribonucleic acid, rRNA for short, is the main place where cells synthesize proteins.

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Introduction of Lining Trolley Walking System

The lining walking system consists of two parts, active and passive, with a total of four sets of devices installed under the four-door frame. When the trolley travels, the power is provided by the front two sets of active traveling mechanisms, the traveling motor drives the reducer, and then the active traveling mechanism is driven by the chain drive to drive the trolley to travel, and the rear two passive traveling mechanisms follow. The walking system is generally equipped with a track clamp to ensure that the trolley will not automatically slide, especially in places with large slopes.

Lining trolley walking system and steel formwork trolleys after the demoulding, first close the gantry support jack, then tighten the gantry to support the jack, start the walking motor to walk.

For specific information about the lining trolley, please visit the tunnel construction equipment manufacturer.

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What are the commonly used tunnel construction equipment?

Now, the degree of mechanization of tunnel construction is relatively high. Generally speaking, the commonly used tunnel construction equipment mainly includes: concrete mixing station, concrete transport truck, concrete pump, generator set, large-capacity transformer, high-lift pump, and constant pressure water supply equipment , Large electric air compressors, rock drills, high-power ventilators, dump trucks, side-turn loaders, excavators, concrete sprayers, grouting machines, steel bar processing equipment, tunnel formwork trolleys, gravel processing equipment, and self-propelled special mold base for processing, etc.

Concrete mixing station: responsible for mixing concrete used in tunnels and mixing sprayed concrete dry materials.

Concrete truck: Transport the mixed concrete to the place of use.

Concrete delivery pump: Pump the concrete in the concrete truck to the pouring site.

Generator set: As the backup power for the tunnel power supply, when the grid power fails, the generator will start to supply power.

Large transformer: Provide electricity for tunnel construction.

High-lift pump: pump the water from the lower part of the water into a pool about 50 meters above the top of the tunnel, and then take over it as the high-pressure water source for tunnel construction.

Constant pressure water supply equipment: when there is no high-level pool, provide rated pressure water equipment to the high-pressure pipe network.

Large-scale air compressor: Provide high-pressure wind to the tunnel construction face. Generally, the wind pressure reaches 5-7kg/cm2.

Rock drill: commonly known as pneumatic drill, equipment for drilling blastholes.

High-power ventilator: It is an important equipment for tunnel ventilation to ensure the air quality in the tunnel.

Dump truck: Generally, a large dump truck of 12 to 15 tons is used for the transportation of caverns.

Rollover loader: loading equipment to load the caverns on the dump truck.

Excavator: remove the loose ballast on the working face and excavate the inverted arch of the tunnel.

Concrete Shotcrete: Shotcrete equipment.

Grouting machine: grouting into the ground or the bolt hole.

Rebar processing equipment: processing rebar.

Tunnel formwork trolley: As a large overall formwork for tunnel lining, it can move forward and backward by itself, and it is equipped with hydraulic cylinders both horizontally and vertically.

Crushed stone processing equipment: The cave ball is processed into crushed stone and used as concrete material.

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Definition of tunnel lining

Tunnel lining refers to a permanent structure that supports and maintains the long-term stability and durability of the tunnel. Its functions are: to support and maintain the stability of the tunnel; to maintain the space required for train operation; to prevent the weathering of surrounding rocks; to relieve the influence of groundwater. Therefore, the tunnel lining must have sufficient strength, durability and a certain degree of frost resistance, impermeability and erosion resistance. The tunnel lining is mainly composed of arch ring, side wall, invert and bottom plate. In order to drain the water in the tunnel, a drainage ditch (central drainage ditch or side ditch) is also set in the tunnel.

After the tunnel was excavated, the original balance of the stratum around the tunnel was destroyed, causing deformation or collapse of the tunnel. In order to protect the stability of the surrounding rock and ensure driving safety, the tunnel must have a supporting structure with sufficient strength, that is, the tunnel lining.

The tunnel lining is a permanent support structure built with reinforced concrete and other materials along the periphery of the tunnel body to prevent deformation or collapse of the surrounding rock. Different lining forms can be used in different surrounding rocks. Commonly used lining forms are shotcrete lining, shotcrete lining and composite lining. In most cases, composite lining is used. Composite lining is often divided into primary support (primary lining) and secondary support (secondary lining).

Commonly used tunnel lining materials are: concrete and reinforced concrete, rubble concrete, aggregate stone or concrete precast blocks, and shotcrete. The lining structure of the tunnel is mainly determined according to the geological and topographical conditions of the tunnel, considering the rationality of the structural force, the construction method and the construction technology level and other factors. The structure, shape and size of the tunnel lining differs due to its use, topography, geology, construction and structural performance and other conditions.
For more details of tunnel lining, please click to visit: https://www.gf-bridge-tunnel.com/

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Introduction of Tanker Sales Manufacturers

The tanker sales manufacturer Luoyang CIMC Linyu Automobile Co., Ltd. is located in Luoyang, the ancient capital of the Nine Dynasties, which is known as the “Millennium Peony City”. It is a company with more than 40 years of automobile production history. It is one of the backbone member companies of CIMC Vehicles (Group) Co., Ltd. (referred to as CIMC Vehicles Group).

CIMC Linyu, a tanker sales manufacturer, is mainly engaged in the manufacture and sales of semi-trailers and special vehicles. Since the beginning of 2002, it has been producing and selling semi-trailers. Since 2013, the company has maintained the world’s number one semitrailer sales volume for five consecutive years. The semi-trailer product line mainly includes Jiping semi-trailers, storage semi-trailers, tank semi-trailers, refrigerated semi-trailers, and van semi-trailers; the top product line mainly includes top loading of dump trucks and mixer trucks. In 2017, CIMC Automobile launched the first-generation mid-mounted axle vehicle in the Chinese market.

The company has total assets of more than 700 million yuan and more than 1,500 employees. Leading products include “Lingyu” brand tank special vehicles, sanitation equipment, and refrigerated insulation vehicles. The current annual production capacity is 15,000 units. The products cover 31 provinces, municipalities and autonomous regions across the country, and are exported to all parts of the world. Now it ranks among the forefront of China’s oil tanker industry.

The company has introduced and applied a series of advanced management models such as SAP, JIT, TQM, TPM, and passed IS09001, ISO14001, CCC, ISO/TS16949 and other certifications. In 2010, it was awarded a high-tech enterprise. The current special-purpose vehicle production line is an advanced domestic production line. The combination of full-line streamlined operation with patented non-standard equipment and tooling fixtures can effectively control the production efficiency and process quality of each process. Advanced management has created high-quality products and won praise from the market and users.

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