UJ120 Hanyar Kera Ruwan Kasa a Shijiazhuang
An kirkiro, an kera, an kuma shigar da wannan hanyar kera ruwan kasa ta VU120 a Shijiazhuang a cikin watan Feburwari, 2015. Its establishment plays an important role in relieving the shortage of natural sand, protecting the environment and developing green building materials and green mines.
The use of highly-intensive fully-closed tower-like layout integrates the high-efficiency sand-making system, particle shape optimization, stone powder control, grading adjustment, water content control and environmental protection, which can optimize and adjust the indexes like the particle shape, grading, powder content and fineness modulus so that machine-made sand can completely replace natural sand in concrete and mortar preparation. The performance of machine-made sand is improved, and a large amount of cement and additives can be saved.
Abu na Tsari
Tun bayan kaddamar da Tsarin Kwamfuta na Betoni Mai Aiki da Yashi da Aka Yi da Injin Kasa ta Ministrin Gidaje da Gina Birane da Karkara ta kasar Sin (MHURC) a shekara ta 1973, an yi ci gaba sosai a cikin yashi na injin. Bugu da ƙari, ci gaban yashi na injin yana da tasiri sosai daga tsarin gudanarwa na macro, masana'antu, shawarar B&R, birni da kula da muhalli.
Abu na Muhalli
The cost for quarrying natural sand gets higher and higher while the amount gets less and less because of excessive quarrying. Yashi na halitta is a non-renewable resource, so to preserve natural terrain, protect riverbanks, and maintain ecological balance, natural sand quarrying has been prohibited in some regions.
Karara daga tasirin tsarin da muhallin, an ƙarfafa wasu kamfanoni masu alaka su haɓaka samar da yashi na injin don kare muhalli a Shijiazhuang, Hebei.
The sand produced by VU meets the standards of GB/T14684 and JGJ52. The sand can be adjusted according to the practical requirements. The fineness modulus can be controlled within 2.0-3.5; the powder is content 3-15%.
| Girman Fada | Yashin Betoni 1 | Yashin Betoni 2 | Yashin Mortar 1 | Iyakar Duniya na Yashin Betoni | ||||
|---|---|---|---|---|---|---|---|---|
| Adadin Fada na Ƙungiya | Adadin Fada mai Tarawa | Adadin Fada na Ƙungiya | Adadin Fada mai Tarawa | Adadin Fada na Ƙungiya | Adadin Fada mai Tarawa | Adadin Fada na Ƙungiya | Adadin Fada mai Tarawa | |
| 4.75 | 0 | 0 | 0 | 0 | 0 | 0 | 10% | 0% |
| 2.36 | 9.5% | 9.5% | 5.3% | 5.3% | 3.5% | 3.5% | 25% | 0% |
| 1.18 | 26.8% | 36.3% | 27.6% | 32.9% | 22.0% | 25.5% | 50% | 10% |
| 0.6 | 22.9% | 59.3% | 23.7% | 56.6% | 24.5% | 50.0% | 70% | 41% |
| 0.3 | 17.8% | 77.1% | 19.2% | 75.8% | 18.5% | 68.5% | 92% | 70% |
| 0.15 | 14.6% | 91.7% | 15.5% | 91.3% | 17.5% | 86.0% | 94% | 80% |
| 0.075 | 3.9% | 95.6% | 4.5% | 95.8% | 9.3% | 95.3% | -- | -- |
| Chassis | 4.4% | 100% | 4.2% | 100% | 4.7% | 100% | -- | -- |
| Ka'idar Fines | 2.74 | 2.61 | 2.33 | |||||
In order to satisfy the increasing demand for high quality sand and the performance requirement of concrete and mortar, SBM spent 5 years developing VU System at the specialized aggregate optimization test site with over 30-year experience in this industry.
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.
------Ingancin Yin Yashi mai ƙarfi
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 Yashi 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.
-----Ana iya daidaitawa da sarrafawa
Wind volume and flow duct can achieve continuously online precise adjustment without replacing the screen mesh and other parts. The fineness of final sand is controllable within 2.5-3.2; the powder content within 3-15%.
-----Ingantaccen tsarin kwaya
Imitating the formation principle of natural sand, the machine adopts globally pioneering technologies of "low energy crushing and dressing" and "self-grinding via falling mode", which can effectively remove edges on the surface of final products and increase the volume of fine sand to about 0.6mm. The voidage is reduced by 1–2%, and the flow time by 5%.
------Karin kudin
The new and targeted dressing technology reduces the energy consumption and extends the life span of vulnerable parts (under the same conditions, the life span is over ten times of impact crushers).
Automated control design guarantees stable water adding to keep the eligible water content of final sand and uniformity, and to avoid segregation.
------Greener
The use of negative pressure dust collector and the closed operation boasts less dust and pollution, fully in line with national standards of "green" construction.
------Mai wayo sosai
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 cost.
------Mai tsabta da dacewa
Ayyukan sarrafawa da sa ido na dukna'urori suna haɗe cikin tsarin sarrafa tsakiya, wanda ke sauƙaƙe tsarin aiki da tabbatar da samar da kayayyaki mai aminci, na ci gaba da tsaye.
------Ingantaccen aiki
Setting and keeping the optimal operating parameters is available. And the quality of products is stable. This system can maximize productivity and keep the overall efficiency at the highest level.
After being crushed and shaped by the VU Yashi-making Crusher, the tailings below 10mm as raw materials are divided into three components under the action of FM Control Screen and Dust Collector--- stone powder, reverting material and finished sand product. Stone powder is collected by Dust Collector and stored at the fine ore bin while the finished sand product enters the Particle Shape Optimization Machine for further dressing and then is taken the last processing step--- mixing in a humid environment. Processed by VU Hadewa Optimization System, raw materials can be turned into high-quality sand with reasonable grading, smooth shape and controllable powder content, and dry, clean, recycled and high-quality stone powder (Application fields depend on raw materials).
The VU Hadewa Optimization System---- a world-leading dry-type sand-making system designed by SBM for machine-made sand production of Shijiazhuang Hengxin Jinshuo Construction Material Company was upgraded fully on the basis of the existing dry-type sand-making system. The use of highly-intensive fully-closed tower-like layout integrates the high-efficiency sand-making system, particle shape optimization, stone powder control, grading adjustment, water content control and environmental protection. Not only does the productivity increase a lot, but also all standards including particle shape, grading and powder content improves so that the performance of machine-made sand can be compared with natural sand and new chances and value in the development of the sandstone, cement and concrete industries.
Kariyar Muhalli Mai Girma
A. Fasahar muhalli: The fully closed transportation and production and the negative pressure dust removal design avoid raising dust in production sites. The dry-type production and screening technology avoids the emission of waste water and slush.
B. Aiki na muhalli: Injin Kula da Abun Ruwa（optional）keeps the water content of finished sand products qualified and avoids raising dust. The powder storehouse monitoring and automatic telescopic material discharging design prevent the stone powder from spilling in transit. Besides, the dry-type dust removing and separating technology keeps the dryness and cleanness of stone powder, making the treatment and overall utilization easier.
Babban Inganci
A. Kera mai inganci: The all-around innovation of crushing and grinding technologies increases the sand production rate by over 10%. The integrated dry-type screening technology elevates the screening efficiency obviously, and the screen area can be reduced by over 50% compared with that of traditional technology. The performance improvement of single machine and the reasonable use of technologies reduce the electricity consumption a lot and increase the processing volume by 5-10%.
B. Aiki mai inganci: The intensive tower-like design occupies smaller floor area. For example, an area of 7.5m×24m can place the body part of VU70. The new anti-abrasive design and the upgrading of materials prolong the lifespan of wear-resistant parts and reduce the maintenance downtime a lot. The integrated control system and online adjustment design can adjust the system settings during operation, improving the quality and yield of finished sand products and reducing labor.
Inganci Mai Girma
A. Tsara mai ma'ana: Integrated crushing & grinding functions and flexible screening design make the grading of finished sand product continuous, adjustable and controllable. The fine sand within 0.15-0.6mm increases sharply while the coarse sand with fineness within 2.36-4.75mm reduces relatively. The grading meets the American standard ASTMC33, the secondary level of Chinese standard JGJ52 and Indian standard IS383.
B. Siffar kwaya mai kyau: Completely original grinding and material falling shaping technologies mainly produce square and spherical sand. The edges on the sand surface are reduced to the extreme. Meanwhile, the superficial area and voidage decrease obviously and the fluidity is therefore increased.
C. Abun ciki na foda mai sarrafawa: dry-type powder removing technology keeps the powder content of finished sand products (0-0.15mm) stable and controllable within 3-15%. The dry and clean stone powder got by dry-type separation method can be recycled.
Riba mai yawa
Highly-efficient system design reduces electricity consumption by 5-10% and labor cost by 40%. The one-time investment can save costs over 30% in comparison with similar products.
Kariyar Muhalli Mai Girma
Babban Inganci
Inganci Mai Girma
Riba mai yawa
The raw materials are relatively clean low-value stone chips with fineness within 0-5mm and 5-10mm. The 0–5mm stone powder before processing costs 4 yuan per ton, while the processed high-quality machine-made sand is 45 yuan per ton, with the value of tailings increased by 40 yuan per ton.
Illar aikace-aikce na sandan da aka yi da mashin wanda aka samar ta hanyar VU120 Tsarin Inganta Hadewa yana da kyau fiye da na yashi na halitta.
Yashin da aka samar ta hanyar tsarin VU zai iya maye gurbin yashi na halitta baki ɗaya don shirya C20-C60 konkiri da wasu nau'ikan konkiri na musamman. Sandan da aka yi da mashin yana da karfi mai yawa, yana da fadi aiki mai ma'ana kuma yana iya adana amfani da siminti da abubuwan haɗi.
| Yashi | Rabo | Rashi | Yanayin haɗin gwiwa | Karfin | |||
|---|---|---|---|---|---|---|---|
| Rabo tsakanin ruwa da siminti | Mai rage ruwa | Farkon T/K | T/K bayan sa'o'i 1 | Bayani kan yanayi | 7d | 28d | |
| Yashi na halitta | 0.38 | 1.42% | 235/490 | 185/390 | Yanayi mai kyau da ruwa | 24.9 | 42.3 |
| Yashi na VU | 0.38 | 1.42% | 240/495 | 180/385 | Yanayi mai kyau da ruwa | 25.8 | 44.5 |
Yashi na samfur mai gama
Hoto na 01 na kimantawa aikin
Hoto na 02 na kimantawa aikin
Ra'ayin mai gudanar da aikin kan shigarwa
1. The whole VU system is over 25 meters high. It is a heavy engineering project which must strictly observe the national safety regulations and be finished by following the drawing requirements.
2. Da zarar an karɓi bayanan da suka shafi tsarin VU, ya zama dole a tsara shirin shigarwa kafin lokaci. Bisa ga girman kowane sashi, yana da muhimmanci a tsara abin da muke bukata a kowane tsari na shigarwa kamar kayan maye, kayayyaki, kayan aiki, crane, ma'aikata da lokaci don rage lokaci da farashi na shigarwa sosai da kuma tabbatar da kammala aikin akan lokaci.
3. 10-20 workers are required to form an installation team. And they must have over 2-year experience in machinery and steel industry. Besides, after safety training, they have a strong awareness of self-protection. Moreover, related skills must be grasped well. Before working, they must wear all protective equipment such as work clothes, safety helmets, safety shoes and gloves. Meetings about safety and quality requirements are held in advance and each individual’s working responsibility is assigned. The progress of project and related problems would be taken down every day and regular project meetings are held.
Ra'ayin Abokin Ciniki
The project using sand and gravel tailings to make high-quality sand was offered by SBM. SBM offered both equipment and installation service. The whole process of installation was successful and VU120 system was put into operation on schedule. The operation was stable with little noise and no dust. The most important thing was that using the wastes produced by previous production to make valuable products brought us great economic profits.
Tun bayan kaddamar da Tsarin Kwamfuta na Betoni Mai Aiki da Yashi da Aka Yi da Injin Kasa ta hannun Ma'aikatar Gidaje da Gina Birane da Karkara ta China (MHURC) a shekara ta 1973, an bunkasa yashi da aka yi da mashin sosai. Daga masana'antar gini zuwa hanya, layin ƙasa, ruwa & wutar lantarki, tsarin ƙarfe, daga ayyukan toshewa da kariya zuwa gaduka, túnnele da ayyukan ruwa, daga haɗakarwa zuwa siminti na yau da kullum, siminti mai ƙarfi, siminti na farko, siminti mai tuka, siminti mai tsayawa da haɗakarwa da shoti, ana ganin yashi da aka yi da mashin a ko'ina.
In light of the protection to natural resources and the increase in construction quality, machine-made sand gradually becomes the key to dry-mixed mortar. Machine-made sand as the new construction sand for dry-mixed mortar has a significant impact on the integrated use of resources.
Inganci mai rauni:Saboda an sarrafa ta hanyar masu yanka farashi mai rahusa, ana samo manyan haɗaka daga hayaki kawai suna karya da tacewa don haka ana samar da ƙananan ƙananan masana'antu da kuma manyan fursunoni da inganci marar daidaito suna bayyana.
Kudin sarrafawa mai tsada:Because of the continuous quarrying, the sand resources get fewer and fewer. The demand exceeds the supply so that the price increases sharply. Furthermore, because the supply and quality of sand cannot be guaranteed, the laboratory has to adjust the mix proportion frequently, which usually gives rise to the overuse of cement. And then production cost rises.
Kurakurai na fasaha:Because the technologies like crushing, screening, dust-removing by rinsing are too simple, the quality of finished sand products fail to pass standards on the one hand and how to treat sewage and sludge is a problem on the other hand.
Gurbataccen yanayi
Tattaunawa