Quick Lime Gypsum calcine bauxite rotary kiln machinery

PROCESS INTRODUCTION

Process Flow Chart of Quick Lime Production Line

Our Service and Solution

We can provide technological solutions and complete production equipment for quick lime (active lime) production line.

-Design capacity: 50-700TPD

-We have professional engineer team.

-We have mature experience, and project cases more than 100 till 2011.

-We use the new type, energy saving and environmental system, through which fuel consumption can be reduced by40%, output capacity increased 30%.

Production Process Description

1.Raw material feeding

Limestone in the plant yard will be carried by tractor shovel and fed to hopper, it will be discharged from hopper to vibrating feeder and sent to vibrating screen for screening through belt conveyor. The size ≥20mm will be sent to pre-heater by conveyor. And size less than 20mm will be carried away.

2.Calcination

Limestone in the pre-heater will be preheated by the hot air, then it will be discharged to rotary kiln through the chute that connects pre-heater and kiln, it will stay in the kiln for 1.5-2 hours for calcination, during the process, it will be calcinated with temperature around 1300 °C, after which comes limestone decomposition, release of CO2, then the formation of quick lime will be completed. And lime will be moved to vertical cooler for cooling.

3.Lime conveying

Lime will be discharged to a chain conveyor by vibrating feeders at the bottom of vertical cooler, it will be lifted to storage hopper by bucket elevator. lime in the storage hopper can be used for dispatch or transported to hydration workshop.

4.Dust filtering 

There are two dust filtering systems, one is in the kiln inlet, dust will be filtered by bag filter then the clean gas will be released to air. The other is dust from lime storage hopper and feeding part of bucket elevator, dust will be filtered by bag filter then released to air.

Advantages of our Process

The successful application of environmental friendly& energy saving lime kiln with vertical preheater and cooler breaks the traditional lime production pattern. Significant reduction of fuel consumption leads to reduction of exhaust emission, which coupled with the application of pulse bag filter for exhaust purification, not only greatly lowers the energy consumption and production cost, but also standardizes the exhaust emission in the calcination process and contributes a lot to the basic improvement of the environmental condition.

Main advantages:

1. Good quality, high output, suitability for the production of large-scale active lime line

2. Stable production& operation, negative pressure through the whole production process, smooth air flow and high safety level.

3. Simple structure, high controllability, easy operation& maintenance.

4. Even fine grade limestone can be calcined, making full use of the mineral resources.

5. Low heat consumption for per unit of product, vertical preheater installed at the end of the kiln can take full advantage of the exhaust for lime preheating and greatly reduces fuel consumption.

6. Making full use of industrial waste gas (such as blast furnace exhaust gas, acetylene tail gas, charcoal blue gas, etc.) as the fuel for lime calcination.

7. Kiln head cover is integrated with the vertical cooler as a whole, through which the construction area is saved, sealing performance is improved, unsystematic gas emission is effectively avoided.

8. The use of pulse bag filter makes it more environmental, emission concentration is 50mg/Nm3, far below the national standard 100mg/Nm3.

Packaging & Shipping:  

Packaging: In the standard export sea worthy packing

Scope of delivery and service:

- Feasibility study

- Creating of basic engineering

- Creating of construction (as-built documentation)

- Delivery of the complete production line equipment

- Delivery of automation system

- Delivery of electrical kits

- Delivery of Lab and test, engineering station for permanent quality monitoring

- Erection the entire plant on the prepared foundations.

- Taking in function (set and run up) of the entire plant.

- Training of customer’s operating staff

- Hand over operating manuals and trouble shooting guide line

- One year full replacement warranty

The delivery does not include:

- Delivery and transport from the customer’s harbour to the erecting place

- Civil work

- Any building work

- Grounding work

- Entire steel frame work

- Lightning protection

Optimum Service of ZK CORP:

We have advanced production technology and management. Our professional engineers and after-sales groups can offer optimum service for our customers.

Pre-sales: Enthusiasm

We provide you with the prophase plan, process flow design and manufacture equipment
according to your special demand.

On-sales: Responsibility

We can send technicians to the jobsite for guidance on installation, adjustment and personnel training.

After-sales: Faithfulness

To establish long term friendship, we will regularly pay return visit to our customers.
In addition, we provide one-year warrantee to make sure your machine run consistently. We always keep certain inventory level of spare parts, which means the replacements can be shipped to you right away. If any problem occurrs, we would give you the right solution ASAP.

Company Profile:

     Established in 1956, Henan Zhengzhou Ming Machinery Co. Ltd. is an entrenched factory appointed by Ministry of Machine-Building Industry and department of electrical machinery industry of Henan province. After development of over half a century, it has become a comprehensive modernized enterprise which integrates research, design, exploring, manufacturing, selling, installing, debugging and training. Our factory owns fixed assets of more than RMB800 000,000.

     Our main products include: rotary kiln, rotary dryer, cooler, ball mill, preheater, conveyor, etc. and complete sets of machinery for cement production line, active lime production line, magnesium production line and ceramic sand production line. We have project cases through every province of China our products have been exported to Russia, Korea, Vietnam, Malaysia, Nepal, Bangladesh, Mexico, Armenia, Africa, South America and other countries and achieved great popularity.

Our Certification

FAQ

To help us provide you the first-rate service, could please kindly answer the following questions before sending an inquiry?

1. Have you done project design for your plant, if not, would you prefer that we assist you to do it?

2. What is your expected production capacity?

3. What is your raw material?

4. What is the particle size of your raw material?

5. Have you done chemical analysis for your raw ore?

6. Which kind of fuel are you inclined to use, gas, coal or furnace oil?

We are dedicated to provide you the most suitable products with the most reasonable price and we sincerely welcome you to visit our company and workshop for inspection.