Washing machine gear

5. Yes
Marie Curie is a French Polish physicist and chemist< In 1898, French physicist Antoine Henri Becquerel discovered that uranium bearing minerals can emit a mysterious ray, but he failed to reveal the mystery of this ray. Mary and her husband, Pierre Curie, worked together on the radiation. Under extremely difficult conditions, they separated and analyzed pitchblende, and finally found two new elements in July and December 1898

in memory of her motherland Poland, she named one element polonium and the other radium, which means "radioactive substance". In order to prepare pure radium compound, Marie cui7e (1867-1934) spent four years to extract 10 mg radium chloride from tons of pitchblende slag, and the relative atomic mass of radium was 225. This simple figure embodies the painstaking efforts and sweat of the Curies< In June 1903, Madame Curie received her doctor's degree in physics from the University of Paris with her doctoral dissertation in the study of radioactive substances. In November of the same year, the Curies were awarded the David gold medal by the Royal Society. In December, they won the 1903 Nobel Prize in physics with becoller< In 1906, Pierre Curie died in a car accident. This heavy blow did not make her give up her persistent pursuit. She enred her grief and redoubled her efforts to complete their beloved scientific cause. She continued her husband's lecture at the University of Paris and became the first female professor of the University. In 1910, her famous book on radioactivity was published. With Mou, she worked with others to analyze pure metal radium and determine its properties. She also measured the half lives of oxygen and other elements and published a series of important works on radioactivity. In view of the above achievements, she won the Nobel Prize in chemistry in 1911 and became the first great scientist to win the Nobel Prize twice in history<

the founder of radiation science, who has experienced the joys and sorrows of science, died of malignant anemia (leukemia) on July 4, 1934 e to years of hard work. She has dedicated her glorious life to the scientific cause of mankind.

6. Classification of vibrating screen: < br > vibrating screen equipment can be divided into mining vibrating screen, light fine vibrating screen and experimental vibrating screen machine according to weight and purpose< Br > Mining vibrating screen can be divided into: high efficiency heavy screen, self centering vibrating screen, elliptical vibrating screen, dewatering screen, circular vibrating screen, banana screen, linear vibrating screen, etc< The light fine vibrating screen can be divided into: rotary vibrating screen, linear screen, straight row screen, ultrasonic vibrating screen, filter screen and so on, which can be referred to the vibrating screen series< Br > experimental shaker: please refer to the experimental equipment for clapping shaker, top impact shaker, standard inspection shaker, electric shaker, etc< Br > according to the material running track of the vibrating screen, it can be divided into: < br > according to the linear motion track, it can be divided into: linear vibrating screen (the material moves forward in a straight line on the screen surface)< Br > according to the circular motion track, the structure and advantages of the circular vibrating screen (the material moves round on the screen surface)< According to the reciprocating motion track: fine screening machine (the material moves forward and backward on the screen surface)< The vibrating screen is mainly divided into linear vibrating screen, circular vibrating screen and high frequency vibrating screen. Vibrating screen can be divided into single shaft vibrating screen and double shaft vibrating screen according to the type of vibrator. The single shaft vibrating screen uses the single unbalanced weight to excite the screen box to vibrate, the screen surface is inclined, and the motion track of the screen box is generally round or oval. The double axis vibrating screen is excited by the double unbalanced weight of synchronous opposite rotation, the screen surface is horizontal or gently inclined, and the motion track of the screen box is linear. There are inertia vibrating screen, eccentric vibrating screen, self centering vibrating screen and electromagnetic vibrating screen< Br > linear vibrating screen: < br > vibrating screen is a kind of screening machine widely used in coal and other instries for material classification, washing, dehydration and medium removal. Among them, linear vibrating screen is widely used because of its high proction efficiency, good classification effect and convenient maintenance. In the working process, the dynamic performance of vibrating screen directly affects the screening efficiency and service life. The vibrating screen uses the vibrating motor as the vibration source to make the material thrown up on the screen and move forward in a straight line at the same time. The material evenly enters the feed port of the screening machine from the feeder, and proces several specifications of materials on the screen and under the screen through the multi-layer screen, which are respectively discharged from their respective outlets. Linear vibrating screen (linear screen) has the advantages of stable and reliable, low consumption, low noise, long service life, stable vibration mode and high screening efficiency. It is a high-efficiency new screening equipment, which is widely used in mining, coal, smelting, building materials, refractory, light instry, chemical instry and other instries< Br > circular vibrating screen: < br > circular vibrating screen (circular vibrating screen) is a new type of vibrating screen with multi-layer number and high efficiency. The circular vibrating screen adopts cylinder eccentric shaft vibration exciter and eccentric block to adjust the amplitude. The material screen has long flowing line and many screening specifications. It has the characteristics of reliable structure, strong exciting force, high screening efficiency, low vibration noise, strong rability, convenient maintenance and safe use. The circular vibrating screen is widely used in the proct classification of mining, building materials, transportation, energy, chemical instry and other instries. According to the requirements of materials, procts and users, high manganese steel woven screen, punched screen and rubber screen can be used. There are two kinds of screen plates: single layer and double layer. All kinds of screen plates can meet the different requirements of screening effect. This series of round vibrating screen is seat type installation. The tilt angle of screen surface can be adjusted by changing the position and height of spring support< Elliptical screen: < br > elliptical screen is a vibrating screen with elliptical motion track, which has the advantages of high efficiency, high screening accuracy and wide application range. Compared with the ordinary sieve machine of the same specification, it has larger processing capacity and higher screening efficiency. It is suitable for solvent and cold sinter screening in metallurgical instry, ore classification in mining instry, classification in coal instry, dehydration and demedium removal, etc. It is an ideal substitute for the existing large vibrating screen and imported procts. TES three axis elliptical vibrating screen is widely used in quarry, sand and stone screening operation, and also for coal preparation, mineral processing, building materials, construction, power and chemical instry for proct classification< Br > screening principle: the power is transmitted from the motor to the driving shaft of the vibration exciter and the gear vibrator (the speed ratio is 1) through the V-belt, so that the three shafts can rotate at the same speed to proce the exciting force, and the vibration exciter is connected with the screen box by high-strength bolts to proce elliptical motion. The material on the screen surface moves along with the high-speed elliptical motion of the screen machine, and is quickly layered, screened and moved forward, finally completing the classification of the material< The obvious advantages of the three-axis elliptical screen: < br > the three-axis drive can make the screen machine proce ideal elliptical motion, which has the advantages of both circular and linear vibrating screen, and the elliptical track and amplitude can be adjusted. The vibration track can be selected according to the actual material conditions, which has more advantages for the materials that are difficult to screen< Br > the three-axis driven forced synchronous vibration can make the screen machine obtain stable working state, which is especially beneficial to the screening with large processing capacity< Br > the three-axis drive improves the stress state of the screen frame, reces the load of a single bearing, evenly forces the side plate, reces the stress concentration points, improves the stress condition of the screen frame, and improves the reliability and service life of the screen machine, which lays a theoretical foundation for the large-scale screen machine< Because of its horizontal installation, the height of the unit is effectively reced, which can meet the needs of large and medium-sized mobile screening units. Thin oil lubrication can effectively rece the bearing temperature and improve the service life; With the same screening area, the output of elliptical vibrating screen can be increased by 1.3-2 times< Br > thin oil vibrating screen: < br > the thin oil vibrating screen has large processing capacity and high screening efficiency; The vibrator adopts the structure of bearing thin oil lubrication and external eccentric block. It has the characteristics of large exciting force, small bearing load, low temperature and low noise (bearing temperature rise is less than 35 ℃) ° The vibrator is disassembled as a whole, which is convenient for maintenance and replacement, and greatly shortens the maintenance cycle (it only takes 1-2 hours to replace the vibrator); The side plate of the screen adopts the whole plate cold working, no welding, high strength and long service life. The connection between the crossbeam and the side plate adopts the high-strength bolt with torsion shear resistance, which is easy to replace without welding; Compared with metal spring, rubber spring is used to rece vibration. It has the advantages of low noise, long service life, stable passing through the common vibration area and small dynamic load of each supporting point; The motor is connected with the vibration exciter by flexible coupling, which has the advantages of long service life and small impact on the motor< This series of screening machines are widely used in grading operations in coal, metallurgy, hydropower, mining, building materials, chemical instry, electric power, transportation, port and other instries.

7.

The official definition of ball mill model and specification is a series of indicators reflecting the nature, performance and quality of the proct, which is generally composed of a series of letters and numbers with a certain number. For example, brand name, grade, composition, content, purity, size, etc. In short, specification refers to the size of performance indicators, and model refers to the name (or code) obtained from the collection of specifications and models

ball mill specification: if it is expressed by the diameter and length of the ball mill cylinder, it can be shown as φ two point two × 7m、 φ two point four × 13m、 φ three × 11 m, etc

ball mill model: also, according to the diameter and length of the ball mill cylinder, it is mqgg 1212, mqG 1212, mqy 1212, mqyg 1212, etc., in which the letter part indicates the abbreviation of the ball mill equipment, and the number part indicates the diameter of the ball mill cylinder. Take mqgg 1212 as an example: this model is a wet energy-saving lattice ball mill φ one point two × 1.2m

generally, there are many models and specifications of mine ball mills, which can be divided into large, medium and small types according to the level. Taking ferrous metals as an example, a large concentrator with a daily processing capacity of 3000t, a medium concentrator with a daily processing capacity of 900-3000t, and a small concentrator with a daily processing capacity below 900t

the commonly used mining ball mill equipment mainly includes

wet energy-saving lattice ball mill. This lattice ball mill mostly deals with coarse minerals and adopts large double row self-aligning roller bearing, which effectively reces the friction force and is easy to start. Compared with other ball mills, it can save 20-30% energy

small ball mills are mainly used in small and medium-sized development enterprises. The proction scale of such enterprises is small, and the investment cost of small ball mills is low, so the investment income of users is fast, and it will not cause a waste of resources. The main ball mill equipment and model parameters suitable for medium-sized concentrator are as follows:

the above introces the definition of mining ball mill model and specification, and the distinction of model and specification according to large, medium and small type selection, and shows the model, specification and parameters of ball mill according to each level, which can be used for reference. However, in the actual concentrator, the specific model and specification of ball mill selected by each concentrator should consider the nature of materials and beneficiation conditions. It is recommended to select qualified ball mill manufacturer for test selection< br />

8. Unknown_Error

9.

bus line: Line 3 → line 4, the whole journey is about 25.9km

1. Take line 3 from Henggang, pass 17 stops, and reach the children's Palace Station

2. Walk about 80m, then transfer to line 4

3. Take line 4, pass 1 stop, and reach the citizen center station