Tare da batun Matakan Gwaji na Tsarin Kula da Hakar Sand na Kasa a Jihar Hunan a 2012, an ci gaba da takaita hakar yashi na halitta. Meanwhile, traditional machine-made sand production line has such problems as poor grading, big fine modulus, mixed concrete with low strength and water pollution, etc., which incur criticisms. In light of this, LONGCHENG Inc. , the local famous manufacturer of concrete aggregate, purchased from SBM the world-class dry-type sand-making system---VU Hadewa Optimization System and put it into use in the late 2015, absolutely solving the problems existing in wet-type sand-making system like large fine modulus, low yield and severe dust pollution.
Hunan na daya daga cikin lardunan da ke da yashi na halitta mai yawa tare da ingancin yashi na halitta da aka rarraba a cikin yankin kogin Xiang da Kofar Dongting. Duk da haka, a cikin 'yan shekarun nan, jinkirin fasahar samar da yashi ta gargajiya da rashin tsari a kasuwar yashi na gini ya janyo karuwar hakar yashi ba tare da izini ba wanda ya yi barazana ga yawan albarkatun yashi a Hunan kuma ya kara farashin hakar. Bayan fitowar matsalar Matakan Gwaji na Tsarin Kula da Hakar Sand na Kasa a Jihar Hunan a 2012, an ci gaba da takaita hakar yashi na halitta.
Dangane da halin da ake ciki na ragin yashi na halitta amma yana kara tsada, yashin da injin ya kera, a matsayin madadin, yana ci gaba da habaka cikin sauri, yana cike gibin kasuwar yashi na halitta. Har yanzu, Hunan ta kaddamar da manufofi da dama don inganta ayyukan yashin da injin ya kera. A wasu yankunan, ana amfani da tarkace na masana'antu, shara daga gini da duwatsu marasa amfani don yin yashi don haɓaka tattalin arzikin sake amfani, don haka masana’antar yashin da injin ya kera tana zama fanni na gargajiya da na kera.
Traditional machine-made sand production used the wet-type sand-making system which controls the stone powder content through washing gumming technology. In the process of washing machine-made sand, part of the fine particles below 0.6mm would be removed with the mud, impurities and stone powder below 0.075mm. This would cause the poor grading, big fine modulus and concrete with low strength.Meanwhile, it also reduces yield, wastes resources, and leads to water pollution, impeding clean production.
Given the heavy demand for high quality machine-made sand in Hunan and the weaknesses brought by the wet-type sand-making system, sand-making enterprises have started to search for a new technology to replace it. So this time LONGCHENG.Inc. selected SBM’s VU Hadewa Optimization System which uses unique dry-type sand-making technology. It avoids the problems in wet-type technology and can process the high quality machine-made sand to replace natural sand. The VU system, therefore, has won high praise from cooperative enterprises in Hunan.
Albarkatun الخام: lime (tarkacen daga masana'antar kayan dutse, ƙananan dutsen da ba shi da ƙima)
Girman shigarwa: 5-15mm
Yawan ruwa: <2%
Yawan sit: <1%
Aikace-aikacen samfur: Yashi mai inganci ana amfani da shi don shiryawa konkret da mortar hadewa; ƙurar dutse mai inganci don maye gurbin ƙurar tayar.
Fine modulus of machine-made sand: 2.7±0.1
Ingancin ƙurar dutse yana cika ƙa'idar biyu na ƙurar tayar.
Rukon dutse
Ƙurar dutse mai inganci
Yashi mai inganci da aka yi amfani da shi a shiryawa konkret
Yashi mai inganci da aka yi amfani da shi a shiryawa mortar bushe
Don gamsar da karuwar bukatar yashi mai inganci da kuma buƙatun aikin betoni da morta, SBM ta shafe shekaru 5 tana haɓaka tsarin VU a wurin gwajin ingancin haɗe-haɗe tare da fiye da shekaru 30 na kwarewa a wannan masana'antar.
The VU Hadewa Optimization System is a system designed to produce high-quality machine-made sand, which overcomes the problems in sand-making technology, including crushing, grinding and separating.
A cikin wannan aikin, Tsarin Haɗa Hadawan VU ya cika duk ka'idojin samar da yashi na injin ga abokan ciniki.
The new generation of Injin Yin Yashi na VU firstly realizes the grinding technologies including high-frequency "stone hitting stone" and "material cloud". Compared to VSI Sand Making Machine, the VU system increases the sand rate and fine sand rate by over 10%.
-----Ingantaccen aiki
The combination of crushing, screening and powder separating, the screen can finish material screening and stone dust removing at the same time because of its full closure, dust removal using negative pressure and uniform screening.
Matsakaicin iska da bututu na kewayawa na iya samun daidaitaccen canji akan layi ba tare da canza tsohon ƙafaffen allon da sauran sassa ba. Ingancin sandar karshe na iya zama mai sarrafawa tsakanin 2.5-3.2, kuma abun turɓayin yana tsakanin 3-15%.
-----Ingantaccen tsarin kwaya
Imitating formation principle of natural sand, the machine adopts the global pioneering technologies of "low energy crushing and dressing" and "self-grinding via falling mode". which can validly remove the edges on the surface of final products and increase the volume of fine sand about 0.6mm, the voidage reduces 1-2%, the flow time 5%.
Sabon fasahar shuka mai canzawa yana rage amfani da kuzari da tsawaita tsawon rayuwar sassa masu rauni (A ƙarƙashin irin waɗannan sharuɗɗan, tsawon rayuwar ya wuce sau goma na masu karya tasiri).
Amfani da mai tara kura ta matsi mara kyau da aikin rufewa yana rage kurar da gurbatawa, yana daidaita da ka'idojin kasa na ginin "mai ƙara gasa".
The design of automatic monitoring and material discharging of fine ore bin makes the fine material storage and transportation possible by pressing a button. It greatly reduces labor intensity and operation costs.
The controlling and monitoring tasks of all machines are integrated into the central control system, which greatly simplifies the operation process and ensures safe, continuous, and stable production.
Shirya da kiyaye mafi kyawun ƙa'idodin aiki yana akwai. Kuma ingancin kayayyaki yana da daidaito. Wannan tsari na iya ƙara yawan kayan da aka samar da kuma kiyaye ingancin gaba ɗaya a matakin mafi girma.
Mataki na farko:
Hawainiya: Dutsen da aka karye yana shiga cikin Injin Yin Yashi na VU don a karye. Ana cire kayan madaidaici da tsawo da gefen yashin a nan don samun girman sassan da ake bukata.
Mataki na biyu:
Screening and grading: the crushed stone is evenly fed into the Screen Control na VU FM through a feeder. Grading the machine-made sand is to precisely control the graduation of machine-made sand. Then the unqualified materials would be sent back into the crushers to be crushed again and redundant stone powder would be collected by the Tsarin Raba da Tara Turɓaya.
Mataki na uku:
Particle shape optimization: the qualified machine-made sand graded by FM Control Screen enters the particle shape optimization machine. The edges of the final sand would be removed here.
Mataki na hudu:
Shafa da sufuri: Sandar da injin ya sake inganta shigar cikin mai haɗawa da shafa don a shafa. Ana sarrafa yawan ruwa na sandar ƙarshe don ƙara tabbatar da ingancin sandar da aka samar.
Mataki na biyar:
Transportation, storage and packing: The redundant stone powder is collected by the pulse dust collector and then sent into the finished product tank for storage through a pneumatic carrier. Finally, the final products are transported after being packed.
After fully understanding the customer’s conditions, we finally worked out a proper layout scheme after discussing the specific situation, conducting design and evaluating the scheme. It ensures a suitable, economical and profit-maximized production line customized for the customer.
SBM ta haɓaka cikakken tsarin VU Hadewa Optimization System wanda aka tsara don biyan bukatar rarraba/modulus mai laushi da yawan ƙura a sandar da injin ya samar. Yana shawo kan matsalolin da ke cikin tsari na inganta wanda ya haɗa da nika, yiwa ƙura ta'aziyya da raba.
SBM has a skilled and experienced after-sale service team. All members are earnest and innovative. So far, thousands of engineering projects have accepted the installation and commissioning service. Meanwhile, SBM would help customers train their operating staff until they can operate the production lines independently.
In order to make customers understand the machine maintenance and repair, SBM supplies customers with the machine instruction manual that shows the detailed analysis of the machines and marks each part. It not only helps customers know the machine structures but also makes the part replacement easier.
The whole VU Hadewa Optimization System production line offered by SBM is compact structurally and reasonable on design. This production line achieves maximizing productivity and minimizing operation costs. The whole production process is dustless and the redundant stone powder is recycled. The produced stone and sand have perfect grain shape. The sand grading is satisfying. So concrete preparation in the mixing plant is very stable and reduces the use of cement. The cost of production is, therefore, reduced.
Grading: For dry-type sand-making system, after the powder separating machine, the soil particles in the artificial sand can be removed and the sand can meet the standard for construction. Besides, the stone powder content in artificial sand can be controlled by the powder separating system under the national regulations so that the compressive strength and mixability of concrete can be increased. For wet-type production, in the process of sand-washing, the washing sand would be removed with stone powder, leading to the shortage of washing sand in finished sand product and influencing the grading of sand.
Cost: The production cost of the dry-type sand-making production line is relatively low, because it uses a high-efficiency powder separator to separate sand and powder and does not require much water for washing.
Environment: Unlimited by water supply and environment, the dry-type sand-making system can produce sand in water-scarce areas. But for the wet-type sand making production line, making sand must be carried out in water-rich areas. And the production is impossible in winter in high-latitude zones.
Kare muhalli: Water in the dry-type production line is not required. The stone powder in the production can be used reasonably. So, to some extent, the water and minerals are saved. Moreover, it brings no sewage and sludge. It is more environmentally friendly than the wet-type sand-making production line.
Tattaunawa