mineral processing production line 7a

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The quality of our products is known in more than 40 countries worldwide. Our customers have tested our products intensively and confirm that they have a longer service life thanothers. In all product ranges we are certified acc. to ISO9001:2015. Besides we established an environmental management system for our company acc. to ISO 14001:2015,an occupational health and safety management acc. toNLF/ILO-OSH 2001 and OHSAS 18001:2007 as well as anenergy management system acc. to DIN EN ISO 50001:2011. And our future slogan is:WE GO FORWARD!

mineral processing plant, technology, equipment manufacturers, mineral beneficiation - xinhai

Xinhai is focused on providing a whole range of services of Mineral Processing EPC (one-stop service for mineral processing plant), including mineral testing, engineer design, equipment manufacture, installation & commissioning and local training. The teams of geologists, mineral processing & mechanic experts of Xinhai are traveling around the world with accumulated experience of 200 EPC projects. Xinhai experts will provide the most professional mineral processing technology for mine investors.

Xinhai mineral processing EPC provides mine owners with one-stop services including mineral beneficiation test, mine design, etc.. Xinhai is committed to solving the problems of mineral processing plant such as budget overspending, schedule delaying, disputes of the manufacturers, etc.

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mineral processing - an overview | sciencedirect topics

Mineral processing, mineral beneficiation, or upgradation involves handling three primary types of ROM material, which have been blasted, fragmented, and brought out from an insitu position. These materials can be used directly or by simple or complex processing and even by applying extractive metallurgy like hydrometallurgical or pyrometallurgical methods. The categories are:

The journey from ROM ore to concentrate and finallymetal travels through many operations of liberation, separation, concentration, and extraction before it reaches the end users. These activities have been diagrammatically summarized in Figs.13.53 and 13.54. Apanoramic view of State of the Art zinc and lead smelting is depicted in Fig. 13.55.

Figure13.54. A complete flow diagram, including crushing, grinding, density media separation, froth flotation, and pyrometallurgical and hydrometallurgical process route to achieve the highest purity of metals. PGE, platinum-group elements.

Figure13.55. Panoramic view of hydro-metallurgical smelter of Hindustan Zinc Limited at Rajpura-Dariba, Rajasthan, India. The smelter has an annual production capacity of 210,000 t zinc and 100,000 t lead metal, and 160 MW captive power plant.

Mineral processing or mineral beneficiation or upgradation involves handling of three primary types of ROM ore material which has been blasted, fragmented and brought out from in situ position. These materials can be used directly or by simple or complex processing and even applying extractive metallurgy like hydrometallurgical or pyrometallurgical methods. The categories are as follows:

The journey from ROM ore to concentrate and ultimately to metal has been conceptualized. The various unit operations used for liberation, separation, concentration and extraction have been discussed in the previous pages of this chapter. The activities and the typical sequence of operations in the process plant have been diagrammatically summarized in Fig. 12.54.

Mining and mineral processing industries have been the key focus of research in many countries due to its increasing sustainability concerns that affect global warming and climate change. This chapter analysed and summarised the significant research outputs published on the environmental impact assessment of mining and mineral processing industries through life cycle assessment (LCA). This chapter presents valuable insights in identifying the gaps, where should the focus be in the mining and mineral processing industries for a sustainable future.

The review results reveal the assessment indicators in human health and ecosystems are key factors that are mostly missing in the previous studies which are crucial for people or community living nearby mining area. This chapter identifies the research gaps to the existing literature that can form the base for future research direction in the field of LCA and sustainable energy integration in mining and mineral processing industries.

Mineral processing operations involve a number of process variables that change randomly with uncertain frequencies. The control strategies developed with the use of PID controllers have been found to be inadequate especially in non-linear systems and systems with large lag times. The present development to solve these problems fall under two categories:

The self tuning control algorithm has been developed and applied on crusher circuits and flotation circuits [22-24] where PID controllers seem to be less effective due to immeasurable change in parameters like the hardness of the ore and wear in crusher linings. STC is applicable to non-linear time varying systems. It however permits the inclusion of feed forward compensation when a disturbance can be measured at different times. The STC control system is therefore attractive. The basis of the system is:

The disadvantage of the set up is that it is not very stable and therefore in the control model a balance has to be selected between stability and performance. A control law is adopted. It includes a cost function CF, and penalty on control action. The control law has been defined as:

A block diagram showing the self tuning set-up is illustrated in Fig. 18.27. The disadvantage of STC controllers is that they are less stable and therefore in its application a balance has to be derived between stability and performance.

The empirical model predicts the process output for a certain predicted time. The error is not fixed as in a PID system, but extends over a time period and minimized. The concept is therefore time based and known as an extended horizontal control system. The algorithm is known as Multivariable, Optimal Control Action or MOCCA [25]. The MOCCA system can be considered as an improvement on the level concept described earlier. It is based on the fact that the prediction of output equals the sum of the future actions plus past control action. It is developed around a step response under steady state conditions by combining:

To derive the model, Sripada and Fisher [25] considered a steady state condition. Also for a single input-single output system (SISO), the predicted output for horizon 1 to P is obtained in N number of step responses. The future and past control actions were written as:

The predicted horizon P, is the number of predicted outputs that the control objective has been optimized The control horizon H is the number of future control actions which minimize the cost function against the predicted horizon.

Optimization of the control system is achieved from performance criteria including any constraints. It is necessary to know the set point and predicted output trajectories for future control effort. The errors and control efforts have to be minimized. For the error trajectory the square of the difference of set point trajectory and the predicted output trajectory is taken. Taking these into consideration Vien et al [6] describes the cost function, Cf, in terms of minimizing the error trajectory plus control effort. Taking the weighted least square performance, the cost function Cf is given as:

Based on the process model, the control block calculates the predictions for future control actions, the supervisory block generates the desired set point trajectory. The feedback loop with filter and disturbance predictor corrects incongruity between the model and unaccounted, therefore unmeasured, disturbances. It also reduces the noise levels. The predictor in the feed back control loop intimates the future effects of disturbances. Combination of the feed back corrections and the predictions from the model provide the necessary estimate of output.

MOCCA has been found to be far superior to the conventional PID or PI controllers and is being increasingly used. It is particularly useful where long time delays are involved. Its advantage is that it uses discrete step response data and can be used to model processes with unusual dynamic behaviour. Its added advantage over the PID system of control is that it rises faster and has no overshoot. This system has been used successfully in control of grinding circuits.

Mining and mineral processing generates large volumes of waste, including waste rock, mill tailings, and mineral refinery wastes. The oxidation of sulfide minerals in the materials can result in the release of acidic water containing high concentrations of dissolved metals. Recent studies have determined the mechanisms of abiotic sulfide-mineral oxidation. Within mine wastes, the oxidation of sulfide minerals is catalyzed by microorganisms. Molecular tools have been developed and applied to determine the activity and role of these organisms in sulfide-mineral-bearing systems. Novel tools have been developed for assessing the toxicity of mine-waste effluent. Dissolved constituents released by sulfide oxidation may be attenuated through the precipitation of secondary minerals, including metal sulfate, oxyhydroxide, and basic sulfate minerals. Geochemical models have been developed to provide improved predictions of the magnitude and duration of environmental concerns. Novel techniques have been developed to prevent and remediate environmental problems associated with these materials.

In any mineral processing operation, the term benefits of scale is used to denote the significant economic advantages can be obtained by having larger production volumes and using larger ships. Larger tonnage operations operate with fewer man-hours per ton, while capital costs for larger machines are less than the multiples of their relative production capacities. In order to compete on world markets, category 1 producers must consider the benefits of scale. For example, in the kaolin industry during the 1970s, a 100,000 tons/year operation was considered to be a reasonable commercial operation. For the current developments in Brazil, a minimum plant size of 300,000 tons per year is being quoted.

For category 2, the annual tonnage requirement is governed by market size rather than benefits of scale. Annual productions from such processing operations typically fall between 10,000 and 100,000 tons per year. The sizes of category 3 operations are typically governed by other factors such as market size or accessible market share.

Mining and mineral-processing industries producing lithium minerals, metals, and salts contribute to the lithium burden in the environment. The processing of lithium-containing minerals such as spodumene, in general, comprises crushing, wet grinding in a ball mill, sizing, gravity concentration, and flotation using a fatty acid (oleic acid) as the collector. The major lithium mineral in lithium ore is spodumene, which is considered insoluble in water and dilute acids. However, a small amount of dissolution may occur during processing of the ore especially in the grinding and flotation stages where some dilute (0.01M) sulfuric acid is used (see Table 6). Tailings are discharged to storage areas, and the decanted water is usually recovered for reuse. Lithium concentrations in tailing dams increase gradually. The dissolved lithium found in the tailing dams of lithium mineral beneficiation plants could be as high as 15mgl1. The repeated use of tailing waters without any treatment further increases the dissolved lithium levels in these waters.

Some of the lithium minerals are more soluble than the others. Manufacturing of lithium chemicals could contribute to the lithium burden in the environment. Most of the lithium chemicals are often more soluble than lithium minerals, and therefore, the risk to the environment could be higher than the risk introduced by the lithium minerals (see Table 5).

Mining and mineral processing can cause arsenic contamination of the atmosphere (in the form of airborne dust), sediment, soil, and water. The contamination can be long-lasting and remain in the environment long after the activities have ceased (Camm et al., 2003). Recent estimates suggest that there are approximately 11 million tonnes of arsenic associated with copper and lead reserves globally (USGS, 2005). In developing mines containing significant amounts of arsenic, careful consideration is now given to treatment of wastes and effluents to ensure compliance with legislation on permitted levels of arsenic that can be emitted to the environment. Such legislation is becoming increasingly stringent. Arsenic contamination from former mining activities has been identified in many areas of the world including the United States (Plumlee et al., 1999; Welch et al., 1999, 1988, 2000), Canada, Thailand, Korea, Ghana, Greece, Austria, Poland, and the United Kingdom (Smedley and Kinniburgh, 2002). Groundwater in some of these areas has been found with arsenic concentrations as high as 48000gl1. Elevated arsenic concentrations have been reported in soils of various mining regions around the world (Kreidie et al., 2011). Some mining areas have AMD with such low pH values that the iron released by oxidation of the iron sulfide minerals remains in solution and therefore does not scavenge arsenic. Well-documented cases of arsenic contamination in the United States include the Fairbanks gold-mining district of Alaska (Welch et al., 1988; Wilson and Hawkins, 1978), the Coeur d'Alene PbZnAg mining area of Idaho (Mok and Wai, 1990), the Leviathan Mine (S), California (Webster et al., 1994), Mother Lode (Au), California (Savage et al., 2000), Summitville (Au), Colorado (Pendleton et al., 1995), Kelly Creek Valley (Au), Nevada (Grimes et al., 1995), Clark Fork river (Cu), Montana (Welch et al., 2000), Lake Oahe (Au), South Dakota (Ficklin and Callender, 1989), and Richmond Mine (Fe, Ag, Au, Cu, Zn), Iron Mountain, California (Nordstrom et al., 2000).

Phytotoxic effects attributed to high concentrations of arsenic have also been reported around the Mina Turmalina copper mine in the Andes, northeast of Chiclayo, Peru (Bech et al., 1997). The main ore minerals involved are chalcopyrite, arsenopyrite, and pyrite. Arsenic-contaminated groundwater in the Zimapan Valley, Mexico, has also been attributed to interaction with AgPbZn, carbonate-hosted mineralization (Armienta et al., 1997). Arsenopyrite, scorodite, and tennantite were identified as probable source minerals in this area. Increased concentrations of arsenic have been found as a result of arsenopyrite occurring naturally in CambroOrdovician lode gold deposits in Nova Scotia, Canada. Tailings and stream sediment samples show high concentrations of arsenic (39ppm), and dissolved arsenic concentrations in surface waters and tailing pore waters indicate that the tailings continue to release significant quantities of arsenic. Biological sampling demonstrated that both arsenic and mercury have bioaccumulated to various degrees in terrestrial and marine biota, including eels, clams, and mussels (Parsons et al., 2006).

Data for 34 mining localities of different metallogenic types in different climatic settings were reviewed by Williams (2001). He proposed that arsenopyrite is the principal source of arsenic released in such environments and concluded that in situ oxidation generally resulted in the formation of poorly soluble scorodite, which limited the mobility and ecotoxicity of arsenic. The Ron Phibun tin-mining district of Thailand is an exception (Williams et al., 1996). In this area, arsenopyrite oxidation products were suggested to have formed in the alluvial placer gravels during the mining phase. Following cessation of mining activity and pumping, groundwater rebound caused dissolution of the oxidation products. The role of scorodite in the immobilization of arsenic from mine workings has been questioned by Roussel et al. (2000), who point out that the solubility of this mineral exceeds drinking water standards irrespective of pH.

A wide variety of minerals processing routes are used for REE deposits (Jordens et al., 2013; Krishnamurthy and Gupta, 2015). For many REE ores, processing techniques for the minerals are unproven on a commercial scale and processing is a major challenge that needs to be considered early in exploration. Physical concentration using density, magnetic and electrostatic properties are normally the most cost-effective. Monazite and xenotime, if reasonably well liberated and coarse-grained, are amenable to physical separation from mineral sands and some carbonatite ores. Finer grained phosphates, and most fluorcarbonates, require more complex and expensive processing via flotation, and/or acid leaching. Eudialyte can be concentrated by physical beneficiation but is difficult to dissolve, although techniques to solve this problem are now available at laboratory and pilot scale.

recycle machine, washing & screening plant products from china manufacturers - jiangxi gandong mining equipment machinery manufacturer - page 1

Shaking Table, Mining Equipment, Gravity Table manufacturer / supplier in China, offering Shaking Table for Placer Gold Concentration Machine, Mobile Mining Processing Plant Movable Mining Plant Equipment Trommel Screen, Trommel Screen for Sand Gold Mineral Washing Machine and so on.

leaching tank, electric separator products from china manufacturers - jiangxi hengchang mining machinery manufacturing co., ltd. - page 1

Jaw Crusher, Ball Mill, Shaking Table manufacturer / supplier in China, offering High Efficient Gold Recovery Machine Alluvial and Placer Gold Mining Equipment Sand Gold Separation Recovery Plant, 1 Ton Ball Mill for Rock Gold Mining Grinding Plant 900 X 1800 Ball Mill for Gold Grinding Plant, Factory Price Grinding Process Stone Gold Ore Ball Mill Rock Stone Gold Grinder Ball Mill Grinding and so on.

production line, mineral processing, concentration of ore - xinhai

Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details

Gold CIP Production Line adsorbs gold from cyaniding pulp by active carbon including 7 steps: leaching pulp preparation, cyaniding leaching, carbon adsorption, gold loaded carbon desorption, pregnant solution electrodeposit, carbon acid regeneration, leaching pulp. View details

Xinhai has been committed to providing customers with more professional services in the turnkey solutions for mineral processing plant, optimized its services continually, and formed its own set of service system, besides, Xinhai set up Mining Research and Design Institute, ensuring the smooth operation in plant service. The following is the detailed flowchart of Xinhai mineral processing plant services. Xinhai proceed from every detail, creating the comprehensive green and efficient mineral processing plant for all customers.

Xinhai has been committed to providing customers with more professional services in the turnkey solutions for mineral processing plant, optimized its services continually, and formed its own set of service system, besides, Xinhai set up Mining Research and Design Institute, ensuring the smooth operation in plant service. The following is the detailed flowchart of Xinhai mineral processing plant services. Xinhai proceed from every detail, creating the comprehensive green and efficient mineral processing plant for all customers.

Xinhai has been committed to providing customers with more professional services in the turnkey solutions for mineral processing plant, optimized its services continually, and formed its own set of service system, besides, Xinhai set up Mining Research and Design Institute, ensuring the smooth operation in plant service. The following is the detailed flowchart of Xinhai mineral processing plant services. Xinhai proceed from every detail, creating the comprehensive green and efficient mineral processing plant for all customers.

Xinhai has been committed to providing customers with more professional services in the turnkey solutions for mineral processing plant, optimized its services continually, and formed its own set of service system, besides, Xinhai set up Mining Research and Design Institute, ensuring the smooth operation in plant service. The following is the detailed flowchart of Xinhai mineral processing plant services. Xinhai proceed from every detail, creating the comprehensive green and efficient mineral processing plant for all customers.

Engineering consulting can allow customers to have an overall concept of dressing plant, , including mining value, useful mineral elements, available mineral technology, mineral plant scale, equipment required, project duration, making customer know fairly well.

Engineering consulting can allow customers to have an overall concept of dressing plant, , including mining value, useful mineral elements, available mineral technology, mineral plant scale, equipment required, project duration, making customer know fairly well.

future of mining, mineral processing and metal extraction industry | springerlink

Mining, mineral processing and metal extraction are undergoing a profound transformation as a result of two revolutions in the makingone, advances in digital technologies and the other, availability of electricity from renewable energy sources at affordable prices. The demand for new metals and materials has also arisen concurrently. This necessitates discovery of new ore deposits, mining and mineral processing of newly discovered ore deposits, and extraction of metals for meeting the projected requirements of the industry and the society. Some of the innovations that impacted the industry, for example, electric and autonomous equipment for drilling, haulage and processing of ores, drones for monitoring and control of operations, space/deep-sea/urban mining and molten salt electrolysis for metal extraction are discussed here. The transformative potential of integrated digital platforms such as TCS PREMAP and TCS PEACOCK is illustrated with examples where the platforms have been gainfully deployed in operating plants and creating values for the industry.

Arrobas, D P, Hund K L, Mccormick, M S, Ningthoujam J, Drexhage J R, The Growing Role of Minerals and Metals for a Low Carbon Future (English). Washington, D.C.: World Bank Group (2017), p 112. http://documents.worldbank.org/curated/en/20737 22/The-Growing-Role-of-Minerals-and-Metals-for-a-Low-Carbon-Future.

Moore P, Mining Trucks Electrification and Autonomy, Spotlight Feature Article, International Mining (2019), p 7. https://gmggroup.org/guidelines/guideline-for-the-implementation-of-autonomous-systems-in-mining/.

Takaya Y, Yasukawa K, Kawasaki T, Fujinaga K, Ohta J, Usui Y, Nakamura K, Kimura J, Chang Q, Hamada M, Dodbiba G, Nozaki T, Iijima K, Morisawa T, Kuwahara T, Ishida Y, Ichimura T, Kitzume M, Fujita T and Kato Y, Sci Rep 8 (2018) 1. https://doi.org/10.1038/s41598-018-23948-5.

Dunn D C, Van Dover C L, Etter R J, Smith C R, Levin LA, Morato T, Colaco A, Dale A C, Gebruk, A V, Gjerde, KM, Halpin, P N, Howell, K L, Johnson, D, Perez J A, Ribeiro M C, Stuckas H, Sci Adv 4 (2018) 1.

Kim H, Boysen D A, Newhouse JM, Spatocco B L, Chung B, Burke P J, Bradwell D J, Jiang K, Tomaszowska AA, Wang K, Wei, W, Ortize L A, Barriga S A, Poizeau S M, and Sadoway D R, Chem Rev,113(2013) 2075.

John D M, Farivar H, Rothenbucher G, Kumar R, Zagade P, Khan D, Babu A, Gautham B P, Berhardt R, Phanikumar G, and Prahl U, in Proceedings of the 4th World Congress on Integrated Computational Materials Engineering (ICME 2017) (2017). https://doi.org/10.1007/978-3-319-57864-4_1.

Khan D, Suhane A, Srimannarayana P, Bhattacharjee A, Tennyson G, Zagade P, and Gautham BP, in Proceedings of the 4th World Congress on Integrated Computational Materials Engineering (ICME 2017) https://doi.org/10.1007/978-3-319-57864-4_2.

Runkana V, Pandya R, Kumar R, Panda A, Nistala S, Rathore P, Jayasree B, Method and system for data-based optimization of performance indicators in process and manufacturing industries, Indian Patent Application Number: 201721009012 (2017).

The authors thank Mr. K. Ananth Krishnan, Chief Technology Officer, Tata Consultancy Services for his guidance and sustained support. We also gratefully acknowledge the contributions of our colleagues at Tata Research Development and Design Centre, Pune, in the design, development and deployment of IT platforms discussed in this communication.

Pradip, Gautham, B.P., Reddy, S. et al. Future of Mining, Mineral Processing and Metal Extraction Industry. Trans Indian Inst Met 72, 21592177 (2019). https://doi.org/10.1007/s12666-019-01790-1

tailored solutions for lime processing plant - daswell machinery

Lime processing plant is a lime production line to make lime which is also called quicklime. When limestone(calcium carbonate) is calcined, the decomposition of limestone will happen and produces quicklime(CaO) and carbon dioxide(CO).Since the temperature needed is high for the calcining, the limestone is often calcined in lime kilns, such as rotary lime kiln and vertical kiln. Of course, there are other machines for the lime processing plant. Daswell machinery, with rich experience and professional knowledge, offers tailored turnkey solutions for lime manufacturing plant, including plant designing and supplying of machinery. Daswell designed and built lime processing plant is of high cost efficiency and can produce high quality quicklime with great highness and uniformity. Lime Calcination Plant Lime calcination plant is also known as quicklime plant, lime processing plant, lime production plant or quicklime production plant. Lime calcination plant is a complete quicklime production line to produce quicklime(also known as burnt lime)by calcination of limestone which contains ...Get Solutions Lime Calcining Plant Upgrade Nowadays, when it comes to rotary lime kiln production line for lime calcining plant, people want the production line to be of high production capacities with low operating and capital expenditure. Besides, there are also mounting requirements for environmental protection ...Get Solutions Rotary Lime Kiln Rotary lime kiln is also called lime rotary kiln or limestone rotary kiln. It is used for the calcination of limestone to make quicklime. And specifically speaking, it is a slightly horizontal device that can rotate continuously to burn down ...Get Solutions Vertical Lime Kiln Vertical lime kiln is also called vertical kiln lime or vertical shaft kiln for lime. It is a vertical static device for the decomposition of limestone to produce quicklime/burnt lime. Vertical lime kiln is suitable for projects with smaller quicklime ...Get Solutions Vertical Preheater Daswell vertical preheater is an important heat recovery equipment of modern lime calcination plant. It is usually attached to the end of rotary lime kiln. Daswell vertical preheater preheats/pre-calcines limestone feed by using the exhaust hot gases from the limestone ...Get Solutions Lime Vertical Cooler The lime vertical cooler is often attached to the lower end of rotary lime kiln. Lime vertical cooler for rotary lime kiln has two main functions. One is to cool down burnt lime that has been treated in rotary lime ...Get Solutions

Daswell machinery is a leading manufacturer and supplier of quicklime plant and other mineral processing plants. We have rich experience and professional knowledge in delivering best suited lime plants for customers. In past several years, we have delivered several successful lime calcining plants for customers all over the world and has won the recognition of customers for high quality products and services. As a lime plant manufacturer, Daswell not only helps you with offering tailor-made solutions for the plant, but also provides quality lime plant equipment. Daswell is the one source supplier for you. And we always put customersinterests in the first place, providing quality and cost efficiency equipment for lime plant. As a result, the lime plant can work for a long period of time.

Lime calcining plant consists of a set of machines, while the lime kiln is the core equipment. Currently, there are mainly two kinds of lime kilns, one is rotary lime kiln and vertical lime kiln. Besides, there are many other machines. For example, there are crushers to crush the limestone into proper sizes. There are conveying systems to handle with the material. And there are silos to store the raw material and final product. For the consideration of environment, there are dust collectors to collect dust produced in the processing. Finally, there may have packing machines to pack the final product automatically. For modern rotary lime kiln system, there are often stand-alone vertical preheater and vertical coolers to reduce the length of rotary lime kiln the consumption of energy and improve the efficiency of the whole quicklime plant.

Mainly, there are several processes in the manufacturing of quicklime in lime plant. That is, the crushing process, conveying process, preheating, calcining and cooling systems, and dust collecting, finally the packing process. Firstly, the sifted and washed limestone will be crushed to proper sizes so as to feed in the kiln. Then the feed limestone will be transferred to raw material silo for use. For the preheating, calcining and cooling process, they are conducted in the vertical lime kiln itself , for the vertical shaft lime kiln consists of these three respective chambers. However, for the rotary lime kiln, it is also equipped with extra preheater and cooler. The feed limestone is preheated in the preheater with the hot exhausted air from rotary lime kiln. And the preheated limestone will go to the rotary lime kiln for calcining. After the calcining process, the hot quicklime will be cooled down with vertical cooler so that they can be handled by conveyors. And then the burnt lime will go through dust collector. Finally, the quicklime will be stored in silo waiting for packing. Please fill the form below to get free quotes. We will reply in 24 hours. Product Model: Your Name(required): Your Email(required): Your Tel: Your country: Your Company: Your Message(required):