About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

Chemical risks in mining industry? - PREVOR

28/12/2011  The production of minerals involves a series of physical and chemical processes. These may occur at any time from excavation of the ore that contains the metal in mineral form through production

Chemical Process Mining - Mineral Land Regulation and ...

02/02/2021  Oregon's chemical mining permitting process goals include: Ensure coordination between state agencies, federal agencies, and local governments Consolidate baseline data requirements for needed state permits Provide for single comprehensive

Chemical Mining - Filtration Group

Chemical Mining. Increase yields, lower costs and protect the environment. We have a successful history of partnering with mining operations and OEM’s. We have developed filtration products optimized for mining and chemical processing including separation and dewatering, process filtration and wastewater treatments. Our products increase production yields, lower costs and protect the ...

"Process Monitoring and Data Mining with Chemical

23/02/2018  Process monitoring algorithms can highlight key trends in data and detect faults faster, reducing or even preventing the damage that faults can cause. This research improves tools for process monitoring on different chemical processes. Previously successful monitoring methods based on statistics can fail on non-linear processes and processes ...

Mining Chemicals - International Mining

01/06/2011  Other GE technologies enable heavy metal removal to improve wastewater quality and water treatment systems to provide deposit and corrosion control in mining process systems. Distinct chemical solutions include boiler, cooling and industrial process chemicals -and monitoring to improve plant productivity while safeguarding assets to ensure environmental protection.

Mining Mineral Processing Chemicals Solenis

15/02/2021  Solenis is a premier supplier of mining and mineral processing chemicals to the global mining and mineral processing industry. Regardless of the type of operation, mines and mineral processors face extraordinary challenges, from water scarcity to environmental regulations to increasing pressure to optimize ore extraction. Addressing these challenges takes innovative mining and mineral processing chemicals,

"Process Monitoring and Data Mining with Chemical

23/02/2018  Process monitoring algorithms can highlight key trends in data and detect faults faster, reducing or even preventing the damage that faults can cause. This research improves tools for process monitoring on different chemical processes. Previously successful monitoring methods based on statistics can fail on non-linear processes and processes ...

Chemicals Used in Mining - Hesperian Health Guides

02/11/2020  Sulfuric acid is a toxic chemical used in copper mining. It is also a byproduct of many kinds of mining, mixing with water and heavy metals to form acid mine drainage. Sulfuric acid smells like rotten eggs. Contact with sulfuric acid can cause burns, blindness, and death. Treatment . Chemicals used at mine sites can spill on the skin and clothes, splash in the eyes, or be breathed in as fumes ...

Product and chemical recovery in mining and minerals

Product and chemical recovery in mining and minerals In the leaching/digestion process, the mineral is extracted from the ore by reacting with an acid or base. The preg- nant liquor that contains the mineral is then sent to a precipitation circuit to pre-cipitate the mineral, after which it under-goes thickening and filtration processes to produce high-grade concentrate. In the flotation ...

Chemical Engineering, Mining, Process Flows

Chemical Engineering, Mining Operations, Process Flows. Minimize computational requirements using the ExtendSim discrete rate approach for quicker and more efficient model execution. Using ExtendSim increases the veracity of the model due to its ability to directly emilinate highly variable feed rate data; simulating highly varying, realistic ...

Process Monitoring and Data Mining with Chemical Process ...

PROCESS MONITORING AND DATA MINING WITH CHEMICAL PROCESS HISTORICAL DATABASES A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Gordon A. and Mary Cain Department of Chemical Engineering by Michael Carl

Data mining and clustering in chemical process

01/07/2018  Research in chemical process monitoring has also used data clustering concepts. Wang and McGreavy ... Automatic classification for mining process operational data. Ind. Eng. Chem. Res., 37 (1998), pp. 2215-2222. View Record in Scopus Google Scholar. Bhushan, Romagnoli. Self-organizing, self-clustering network: a strategy for unsupervised pattern classification with its application to fault ...

Chemical Reactions In Mining by Michaela Baker

21/10/2014  What Chemicals Are Used in Mining. cyanide, sulfuric acid, and solvents for separating minerals from ore. nitric acid. ammonium nitrate and fuel oil (“ANFO”) used in blasting tunnels. heavy metals such as mercury, uranium, and lead. gasoline, diesel fuel, and exhaust fumes from vehicles and equipment. acetylene for welding and soldering.

Mine Water Treatment - Water Treatment Chemical

As you know, in mining and in the chemical industry, water is held as a precious commodity; removing it from your slurry for re-use in your process or to extrude the perfect product; a critical filter and dewatering process is necessary for you to maintain the highest rate

A new unsupervised data mining method based on the

06/04/2020  In this work, a new unsupervised data mining method based on deep learning is proposed for isolating different conditions of chemical process, including normal operations and faults, and thus labeled database can be created efficiently for constructing fault diagnosis model. The proposed method mainly consists of three steps: feature extraction by the convolutional stacked autoencoder

11.25 Clay Processing - US EPA

A process flow diagram for kaolin mining and dry processing is presented in Figure 11.25-1, and Figure 11.25-2 illustrates the wet processing of kaolin. In the dry process, the raw material is crushed to the desired size, dried in rotary dryers, pulverized and air-floated to remove most of the coarse grit. Wet processing of kaolin begins with blunging to produce a slurry, which then is ...

"Process Monitoring and Data Mining with Chemical

23/02/2018  Process monitoring algorithms can highlight key trends in data and detect faults faster, reducing or even preventing the damage that faults can cause. This research improves tools for process monitoring on different chemical processes. Previously successful monitoring methods based on statistics can fail on non-linear processes and processes ...

Chemical Reactions In Mining by Michaela Baker

21/10/2014  What Chemicals Are Used in Mining cyanide, sulfuric acid, and solvents for separating minerals from ore nitric acid ammonium nitrate and fuel oil (“ANFO”) used in blasting tunnels heavy metals such as mercury, uranium, and lead gasoline, diesel

Product and chemical recovery in mining and minerals

Product and chemical recovery in mining and minerals In the leaching/digestion process, the mineral is extracted from the ore by reacting with an acid or base. The preg- nant liquor that contains the mineral is then sent to a precipitation circuit to pre-cipitate the mineral, after which it under-goes thickening and filtration processes to produce high-grade concentrate. In the flotation ...

Process Monitoring and Data Mining with Chemical Process ...

PROCESS MONITORING AND DATA MINING WITH CHEMICAL PROCESS HISTORICAL DATABASES A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Gordon A. and Mary Cain Department of Chemical Engineering by Michael Carl

Data mining and clustering in chemical process

01/07/2018  Research in chemical process monitoring has also used data clustering concepts. Wang and McGreavy ... Automatic classification for mining process operational data. Ind. Eng. Chem. Res., 37 (1998), pp. 2215-2222. View Record in Scopus Google Scholar. Bhushan, Romagnoli. Self-organizing, self-clustering network: a strategy for unsupervised pattern classification with its application to fault ...

Mine Water Treatment - Water Treatment Chemical

As you know, in mining and in the chemical industry, water is held as a precious commodity; removing it from your slurry for re-use in your process or to extrude the perfect product; a critical filter and dewatering process is necessary for you to maintain the highest rate

Mining Chemicals Handbook - 911 Metallurgist

8 Mining Chemicals Handbook Introduction The year 2003 marks Cytec’s 87th anniversary as a supplier of chemical reagents to the mining and mineral processing industry. Formerly a part of American Cyanamid Company, Cytec became an independent company in 1993. Starting as a

A new unsupervised data mining method based on the

06/04/2020  In this work, a new unsupervised data mining method based on deep learning is proposed for isolating different conditions of chemical process, including normal operations and faults, and thus labeled database can be created efficiently for constructing fault diagnosis model. The proposed method mainly consists of three steps: feature extraction by the convolutional stacked autoencoder

11.25 Clay Processing - US EPA

A process flow diagram for kaolin mining and dry processing is presented in Figure 11.25-1, and Figure 11.25-2 illustrates the wet processing of kaolin. In the dry process, the raw material is crushed to the desired size, dried in rotary dryers, pulverized and air-floated to remove most of the coarse grit. Wet processing of kaolin begins with blunging to produce a slurry, which then is ...

A Short Introduction to Process Dynamics and Control

mental and safety regulations, process control has become increasingly important in the process industries. It is also clear that the scope and importance of process control technology will continue to expand. Consequently, chemical engineers need to master this subject

Chemical Process Mining - Mineral Land Regulation and ...

The first steps of the chemical mining permit process have been completed by Calico. They have issued a Notice of Intent to submit an application and are collecting baseline data. DOGMI anticipates Calico will file a Consolidated Application in late 2018. The Consolidated Application will provide the details of their proposal including an operating plan, baseline data, reclamation and closure ...

Process Monitoring and Data Mining with Chemical Process ...

PROCESS MONITORING AND DATA MINING WITH CHEMICAL PROCESS HISTORICAL DATABASES A Dissertation Submitted to the Graduate Faculty of the Louisiana State University and Agricultural and Mechanical College in partial fulfillment of the requirements for the degree of Doctor of Philosophy in The Gordon A. and Mary Cain Department of Chemical Engineering by Michael Carl

Data Mining for the Chemical Process Industry:

Data Mining for the Chemical Process Industry: 10.4018/978-1-60566-010-3.ch072: Advancements in sensors and database technologies have resulted in the collection of huge amounts of process data from chemical plants. A number of process

Product and chemical recovery in mining and minerals

Product and chemical recovery in mining and minerals In the leaching/digestion process, the mineral is extracted from the ore by reacting with an acid or base. The preg- nant liquor that contains the mineral is then sent to a precipitation circuit to pre-cipitate the mineral, after which it under-goes thickening and filtration processes to produce high-grade concentrate. In the flotation ...

Mining Jobs - Chemical Process Engineer

We are currently working on an excellent opportunity for a motivated, passionate Chemical Process Engineer for a project in the South West (UK). The role is with an exciting and ambitious organisation, who are work in an innovative space which will play a critical role in the UK mining industry. They are planning on going into production in the next 3 years. You will report directly to the ...

Mine Water Treatment - Water Treatment Chemical

As you know, in mining and in the chemical industry, water is held as a precious commodity; removing it from your slurry for re-use in your process or to extrude the perfect product; a critical filter and dewatering process is necessary for you to maintain the highest rate

Mining Chemicals Handbook - 911 Metallurgist

8 Mining Chemicals Handbook Introduction The year 2003 marks Cytec’s 87th anniversary as a supplier of chemical reagents to the mining and mineral processing industry. Formerly a part of American Cyanamid Company, Cytec became an independent company in 1993. Starting as a

Natural Sciences Grade 9 - Grade 7-9 Workbooks

If the mining process is not monitored properly, acid and other chemicals from chemical processing can run into nearby water systems such as rivers. This is poisonous to animals and plants, as well as to humans who may rely on that water for drinking. An example are pollutants (dangerous chemicals), called tailings, left over from gold mining which pose a threat to the environment and the ...

Copper Mining and Production Processes Explained

Processes: copper mining and production. Copper is found in natural ore deposits around the world. This page explains copper mining: the production route taken from ore-containing rock to a final product that is the highest-purity commercial metal in existence and used in a wide variety of applications essential to modern living.

Copper Mining Extraction Process Flow Chart

26/08/2015  Copper Mining Extraction Process Flow Chart. This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process. Starting from either open-pit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral (ore).