Connecting rod mechanism of crusher
unlike most currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to 21 million
mining machine is a tool for procing and mining bitcoin
as for Vicat, many posts on the Internet have been exposed as scams. Babbitt, a well-known virtual currency information website, has exposed the pyramid selling mechanism of the project:
Dr. ruja ignatova, who is also the founder, boss and COO of Vicat, according to their own description, is a person with rich business experience and outstanding business mind behind the scenes. According to the information on Vicat's website, she received her degree from Oxford University and the University of Constance, and is a former CEO of CSIF, a Bulgarian private investment company
Vicat's official website has her authoritative resume information, but according to the document, the exact information of this person can't be found at all. Ignatova's experience of attending the Harvard Negotiation Course was only mentioned on the website of the Vicat global foundation. Of course, her resume is no longer trustworthy< According to the records on ignatova's website, she graated from Oxford University with a master's degree in law in 2004. The sites in question were edited by WordPress, blogspot and Weebly, and the last two blogs, which are also edited in German, mentioned that she worked after graating from Oxford University in 2004. But the certificate scanned from Vicat's official website points out that she graated only in 2009, not in 2004
we contacted CSIF to confirm whether the Bulgarian private investment company is true or not, but cointelegraph did not receive a reply when editing this article. Sebastian Greenwood and Nigel Allan are involved in the operation of Vicat in various capacities, and they have been involved in fraud before<
Greenwood previously participated in the pyramid scheme organization Unaico. Their activities were warned by the Pakistan securities and Exchange Commission, which referred to their activities as "illegal pyramid schemes" and advised consumers to stay away from the so-called lucrative business advocated by the company
Allan, former chairman of Vicat, also involved in pyramid schemes like Vicat crypto888 and brilliant carbon. According to the communication in January 2015, I saw that Allan and ignatova had a dispute, and ignatova thought he was "betrayal" and "disloyal".
CS Series cone crusher
I. working principle:
the motor drives the V-belt and pulley, and drives the cone to swing under the force of eccentric sleeve through the transmission shaft, so that the material is constantly impacted, squeezed and bent in the crushing cavity, so as to achieve the purpose of material crushing
2 The structural composition:
< P >
; (P >
< P >
; (P >
bevelgear (20crni2 MOA)
(11) pulley (HT200)
(12) spindle (45)
(13) thrust bearing (upper thrust plate 35SiMn, (14) eccentric sleeve (zgg330-450)
(15) spindle bushing (zccuppb15sn7)
(15) spindle bushing (zccuppb15sn7)
(15) spindle bushing (zccuppb15sn7)
(14) eccentric sleeve (zgg330-450-450)
(19) lower seal ring (HT250) (HT250) <
(19) (19) (19) (19) (19) (19) (19) lower seal ring (HT250) (HT250) (HT250) (20) (20) (20) (20) body (20) body (zg
(23) spindle nut (zg230-450)
(24) distributor (zg270-500)
(25) hopper (ZGMn13)
(26) adjusting sleeve shield (Q235A)
(27) spring (60Si2Mn)
(28) sector plate (Q235A)
(29) ejector (45)
(30) Jack
(31) push cylinder
(32) high pressure pump station
(33) thin oil station
The working principle of different types of crushers is different. The following are the working principles of several crushers:
1. The working principle of heavy hammer crusher: the motor drives the rotor to rotate at high speed in the crushing chamber, and the materials are fed into the crusher from the upper feeding port, and are crushed by the impact, impact, shear and grinding of the high-speed hammer
in the lower part of the rotor, there is a sieve plate, and the particles smaller than the size of the sieve hole are discharged through the sieve plate, while the coarse particles larger than the size of the sieve hole are retained on the sieve plate and continue to be hit and ground by the hammer, and finally discharged out of the crusher through the sieve plate
2. Working principle of impact crusher: when the machine is working, driven by the motor, the rotor rotates at high speed, and when the material enters the action area of the plate hammer, it collides with the plate hammer on the rotor to break
is thrown to the impact device and broken again, and then bounced back from the impact liner to the plate hammer action area and broken again, this process is repeated
from large to small, the material enters the first, second and third impact chambers for repeated crushing until the material is crushed to the required particle size and discharged from the discharge port. Adjusting the clearance between the impact frame and the rotor can change the material size and shape
extended data:
heavy hammer crusher predicted failure causes and elimination methods
increased vibration when replacing or assembling the hammer, the rotor is not well balanced, the hammer is removed, and the hammer quality is selected according to the requirements, Make the total mass of hammer on each row of hammer shaft and its relative hammer mass meet the requirements
rece the proction capacity
1. The gap of screen bar is blocked
2. Uneven feeding 1. Remove the plug in the gap of screen bar after parking
2. Adjust the feeding mechanism
to proce knocking sound inside the machine
1. The materials that cannot be broken enter the inside of the machine
2. The fastener of lining plate is loose The hammer or other parts are broken 1. Clean the crushing chamber after parking
2. Check the fastening condition of lining plate and the common faults and repair methods of hammer and screen bar
1. If the vibration of impact crusher is abnormal:
1. It indicates that the material is too large, you can check the feeding size
2. Uneven wear indicates that the impact hammer needs to be replaced
The rotor is unbalanced and needs to be adjusted4. The foundation should be checked and reinforced e to improper foundation treatment
Second, if the impact crusher bearing is found to be hot:1. The bearing is short of oil and needs to be refueled in time. Of course, too much oil will also make the bearing hot. The oil level must be checked when refuelling
If the bearing is damaged, the bearing should be replaced in time If the upper cover is too tight, the bolts should be adjusted properly and the tightness should be moderate (3) if it is found that the discharge particles of impact crusher are too large:1. It indicates that the hammer head is worn and needs to be adjusted or replaced
The clearance between hammer head and impact plate is too large, generally adjusted to 15-20 mm3, too large feed particle size will also affect the discharge particle size
4. If the impact crusher belt turns over:1. The belt is worn and needs to be replaced
2. Because of the assembly problem of the belt conveyor, the pulley should be adjusted on the same plane
5. Model parameters of impact crusher
repair method
1. The front impact plate suspender and the rear impact plate suspender of impact crusher are combined to improve the elastic vibration of impact plate, so that the materials bonded on the impact plate can be sent to the crushing shell in time, With the crushed material, it enters into the lower bin
2. Recovery and repair of impact plate of high manganese steel impact hammer. For the worn hammer, 506 electrode, 2 high carbon electrode and 5 high tungsten electrode were used for surfacing test. The wear resistance and impact resistance of the hammer are the best after surfacing with No.5 high tungsten electrode
The wear resistance of the impact hammer overlaid with 506 electrode and No.2 high carbon electrode is two times higher than that of the original high manganese steel. But the cost of these two kinds of surfacing is high, which is not economical When the impact plate is worn 3-5mm, the 5 high tungsten electrode is used for surfacing for 2-3 times When the impact angle of impact crusher is increased from 1500 to 3000, the impact strength can be increased to ensure the particle size after crushing The use methods of impact hammer include grouping according to weight tolerance, alternate row replacement, cross dislocation replacement and symmetrical replacement The gap between the rotor and the front part of the shell of the impact crusher is increased from 10 mm to 85 mm, which can prevent the front part of the body from blockingthe working part is fixed and the material is screened by sliding along the working face. Fixed grid screen is widely used in concentrator, generally used for pre screening before coarse crushing or medium crushing. The utility model has the advantages of simple structure and convenient manufacture. Without power consumption, the ore can be directly discharged to the screen surface. The main disadvantages are low proctivity and screening efficiency, generally only 50-60%
there are two kinds of fixed screen: lattice screen and strip screen
the lattice screen is installed on the upper part of the coarse ore bin to ensure that the feeding block size of the coarse crusher is appropriate. The large blocks on the lattice screen need to be broken by hand hammer or other methods to pass the screen. The fixed screen is generally installed horizontally
the bar screen is mainly used for pre screening before coarse crushing and medium crushing. Generally, it is installed at an inclined angle. The inclination angle should enable the material to slide down automatically along the screen surface, that is, the inclination angle should be greater than the friction angle between the material and the screen surface. Generally, the dip angle is 40 °— fifty ° For large ore, the dip angle can be slightly reced, while for viscous ore, the dip angle should be slightly increased
the mesh size of the bar screen is about 1.1-1.2 times of the required particle size under the screen. Generally, the mesh size is not less than 50 mm
the width of the screen depends on the width of the feeder, conveyor and crusher; And it should be 2.5 times larger than the largest block size in the feed
2. Roller screen
the working face is composed of horizontally arranged rolling shafts with plates on which fine materials pass through the gaps between rollers or plates. The bulk material moves from the roller belt to one end and is discharged from the end. This kind of sieve is seldom used in concentrators
the screen surface of roller screen is composed of a number of rollers arranged in parallel and staggered with screen plates. The rollers rotate through sprocket or gear transmission, and the rotation direction is the same as the material flow direction. In order to make the material layer on the screen loose and easy to pass through the screen, the shape of the screen plate is eccentric and irregular. In order to prevent the material from jamming the screen shaft, a safety device is installed. All roller screens are seat type, which can be divided into left drive and right drive, and can be divided into take-off wheel and non take-off wheel. The take-off wheel can move on the rail. Roller screen is a relatively backward old screening equipment with complex and bulky structure, which is being eliminated. Metal mines are mostly replaced by heavy vibrating screen, but some old users such as coal department are still used to using this equipment
working principle: because the screen shaft is arranged according to different working angles, the speed is faster when the material runs in the position with higher working angle; When the material runs at a lower working angle, the speed is gentle. When the two kinds of wood run at the same speed, the materials begin to move axially when they meet at a certain position on the screen surface, so that the materials are evenly distributed on the screen surface, and the purpose of improving the screening efficiency is achieved
3. The working part of the cylindrical screen is cylindrical, the whole screen rotates around the axis of the cylinder, and the axis is generally installed with a small inclination angle. The material is fed in from one end of the cylinder, the fine material passes through the sieve hole on the working surface of the cylinder, and the coarse material is discharged from the other end of the cylinder. The rotary speed of the cylinder screen is very low, the work is stable and the power balance is good. But the screen hole is easy to block, the screening efficiency is low, the working area is small, and the proctivity is low. Concentrators rarely use it as screening equipment
cylinder screen
Application of cylinder screen: cylinder screen can be widely used for screening dry powder or granular materials in metallurgy, building materials, chemical instry, grain, medicine, abrasive and chemical fertilizer instries, especially suitable for dry proction of manufactured sand and granular wet materials
characteristics of cylindrical screen:
(1) screen drying and cleaning, net output from strong, non blocking, screening efficiency
(2) the material composition under the screen proportion is flexible, and the screen size can be adjusted to achieve the expected proportion. Red Star Machinery and equipment specializes in manufacturing all kinds of machine types and polyhedral structure wheel screening to meet different needs
(3) screening ability, a wide range of screening
(4) it is easy to operate, adjust and maintain
(5) closed, less pollution, good environment
(6) no vibration, noise and long service life
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4. Plane motion screen
the body is a plane swing or vibration. According to its plane motion trajectory, it can be divided into linear motion, circular motion, elliptical motion and complex motion. Shaker and shaker belong to this category
the crank connecting rod mechanism is used as the transmission part of the shaker screen. The motor drives the eccentric shaft to rotate through the belt and pulley, and makes the body move back and forth in a certain direction through the connecting rod. The movement direction of the machine body is perpendicular to the center line of the strut or the suspender. Due to the swing movement of the machine body, the material on the screen surface moves to the discharge end at a certain speed, and the material is screened at the same time
compared with the above-mentioned sieves, the shaker screen has higher proctivity and screening efficiency. Its disadvantage is poor dynamic balance. Now, it is rarely used in concentrator, and is replaced by vibrating screen with more reasonable structure
vibrating screen is widely used in mineral processing plants. According to its different transmission mechanism, it can be divided into the following types: eccentric vibrating screen, inertial vibrating screen, self centering vibrating screen and resonance screen.
(2) grinding machine: Generally speaking, the material processed by the grinding machine is fine, and the proct size is fine, up to 0.074 mm, even finer. Its structural feature is that the crushing parts (or medium) contact each other, and the medium used is steel ball, steel bar, gravel or ore block. But some machines have the function of crushing and grinding at the same time, such as autogenous mill. According to the crushing mode and mechanical structure characteristics (working principle), the crushers can be divided into six categories:
(1) jaw crusher (tiger mouth): the crushing action is to press the movable jaw plate to the fixed jaw plate periodically to crush the ore block in it
(2) cone crusher: the ore block is between the inner and outer cones, the outer cone is fixed, and the inner cone swings eccentrically to crush or break the ore block< (3) impact crusher: it uses the high speed impact of the plate hammer and the rebound effect of the impact plate to make the material receive repeated impact and crush. The plate hammer is fixed on the high-speed rotating rotor, and several impact plates are arranged at different angles along the crushing chamber
(4) roller crusher: in the gap between two opposite rotating round rollers, the ore block is mainly crushed continuously, but it also has the function of grinding and stripping, and the toothed roller surface also has the function of splitting
(5) impact crusher: the ore block is broken by the impact of fast rotating moving parts. Belong to this category can be divided into: hammer crusher; Cage crusher; Impact crusher
(6) grinding machine: the ore is crushed by the impact and grinding of grinding medium (steel ball, steel bar, gravel or ore block) in the rotating cylinder
(7) other types of crushing mills: A. roller mills: grind materials by rotating rollers. B. Disc mill: the disc rotation of vertical axis or horizontal axis is used as crushing part. C. Centrifugal mill. High speed rotating parts and medium are used to proce centrifugal force to complete crushing. D. Vibration mill. High frequency vibration is proced by the rotating shaft, which makes the medium and material collide with each other to complete the crushing effect
in order to check and understand whether the technical operation of each proction link meets the process requirements; In order to provide the managers and technicians of the concentrator with the weak links in proction, find and solve the problems in time, and promote the normal proction, the technical detection plays an indispensable and decisive role. It is an important means to do well in proction technology management, metal balance and management level. Therefore, each concentrator must carry out a series of proction technology testing work, and set up corresponding organizations according to the specific situation, such as quality management materials, technical inspection department, technical supervision station, testing group, etc From: Henan Zhenping Xinlong Machinery Manufacturing Co., Ltd.)
(2) grinding machine: Generally speaking, the material processed by the grinding machine is fine, and the proct size is fine, up to 0.074 mm, even finer. Its structural feature is that the crushing parts (or medium) contact each other, and the medium used is steel ball, steel bar, gravel or ore block. But some machines have the function of crushing and grinding at the same time, such as autogenous mill. According to the crushing mode and mechanical structure characteristics (working principle), the crushers can be divided into six categories:
(1) jaw crusher (tiger mouth): the crushing action is to press the movable jaw plate to the fixed jaw plate periodically to crush the ore block in it
(2) cone crusher: the ore block is between the inner and outer cones, the outer cone is fixed, and the inner cone swings eccentrically to crush or break the ore block< (3) impact crusher: it uses the high speed impact of the plate hammer and the rebound effect of the impact plate to make the material receive repeated impact and crush. The plate hammer is fixed on the high-speed rotating rotor, and several impact plates are arranged at different angles along the crushing chamber
(4) roller crusher: in the gap between two opposite rotating round rollers, the ore block is mainly crushed continuously, but it also has the function of grinding and stripping, and the toothed roller surface also has the function of splitting
(5) impact crusher: the ore block is broken by the impact of fast rotating moving parts. Belong to this category can be divided into: hammer crusher; Cage crusher; Impact crusher
(6) grinding machine: the ore is crushed by the impact and grinding of grinding medium (steel ball, steel bar, gravel or ore block) in the rotating cylinder
(7) other types of crushing mills: A. roller mills: grind materials by rotating rollers. B. Disc mill: the disc rotation of vertical axis or horizontal axis is used as crushing part. C. Centrifugal mill. High speed rotating parts and medium are used to proce centrifugal force to complete crushing. D. Vibration mill. High frequency vibration is proced by the rotating shaft, which makes the medium and material collide with each other to complete the crushing effect
in order to check and understand whether the technical operation of each proction link meets the process requirements; In order to provide the managers and technicians of the concentrator with the weak links in proction, find and solve the problems in time, and promote the normal proction, the technical detection plays an indispensable and decisive role. It is an important means to do well in proction technology management, metal balance and management level. Therefore, each concentrator must carry out a series of proction technology testing work, and set up corresponding organizations according to the specific situation, such as quality management materials, technical inspection department, technical supervision station, testing group, etc From: Henan Zhenping Xinlong Machinery Manufacturing Co., Ltd.)
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