The development status of lime kilns, the classification of lime kilns

To give you a 2009-2010 lime kiln status analysis.

GB T 41333-2022 national standard "Technical Requirements for Lime Calcination Complete Sets of Equipment" was drafted by Jiangsu Pengfei Group Co., Ltd., which was first released on March 9, 2022 and implemented on October 1, 2022. I'm the first drafter, and I'm here to do it right :

The existing lime calcination equipment includes lime rotary kiln calcination equipment (hereinafter referred to as "rotary kiln equipment") and lime shaft kiln calcination equipment (hereinafter referred to as "shaft kiln equipment"). Among them, the mainstream equipment types of shaft kiln equipment include double-shaft kiln equipment, single-shaft shaft kiln equipment, annular sleeve kiln equipment and beam kiln equipment. The five types of equipment that are mainly used above are all reflected in the standard.

The production capacity of various types of equipment is determined based on the value of the existing equipment in the market at various scales, including 100 t d, 150 t d, 200 t d, 300 t d, 400 t d, 500 t d, 600 t d, 800 t d, 1 000 t d, 1 200 t d and 1 500 t d, a total of 11 scales.

Among them, the production capacity of rotary kiln equipment is 300 t d and 1 500 t d, with a total of 7 scales; The production capacity of double-shaft kiln equipment is 200 t d and 800 t d, with a total of 6 scales; The production capacity of single-shaft kiln equipment is 100 t d and 600 t d, with a total of 6 scales; The production capacity of annular sleeve kiln equipment is 150 t d and 800 t d, with a total of 5 scales; The production capacity of beam kiln equipment is 100 t d and 800 t d, with a total of 7 scales.

The rotary kiln equipment includes three kinds of calcination equipment: preheater, rotary kiln and cooler, which are relatively independent of preheating, pyrolysis and cooling functions; The calcination equipment of the kiln equipment is a single shaft kiln (also known as "vertical kiln") with concentrated functions of preheating, pyrolysis and cooling.

According to the composition of the calcination equipment in the complete set of lime calcination equipment and the functional classification of other main equipment in the equipment, combined with the two types of fuel morphology varieties (powder or gas fuel, block fuel), the six different types of equipment are summarized into two types of equipment composition. That is, "Lime calcination kit using powder or gas fuel" and "lime calcination kit kit using block fuel". The main difference between the two types of equipment composition is that the fuel is burned separately and mixed with limestone raw materials.

In addition, it is clarified that equipment using block fuel is only suitable for the mixed combustion (referred to as "mixed firing") method equipped for single-shaft kilns.

As the index of equipment capacity, production capacity and calcination quality are an important basis for guiding users to select equipment according to lime grade requirements. If you need to stably produce high-grade lime (such as activity greater than 360, or even activity up to 400+), you should choose to use rotary kiln equipment; If you need to produce low-grade lime normally, you can choose one of the equipment in the shaft kiln equipment.

National standards.

Hello, I am asking a question and answer Master Zhu, according to my understanding 1Production capacity profit analysis, according to the daily production capacity of 500 tons of medium-sized lime kiln, the factory ** of general products is about 600 yuan a ton, a ton of profit is calculated at 600 yuan, according to the production capacity of 500 tons a day, the actual profit of a day is about 300,000 yuan, and the net profit of a month is about 9 million yuan. 2.

Cost analysis, capacity and profit analysis is the industry's standard socks analysis, many factories will be based on the actual cost and profit to carry out accurate analysis, generally 600 yuan a ton, the cost of forging language has come to 50%, and the type of respect is to remove 200 yuan. Then a purpose of the inter-profit will be around four million yuan3In addition to the cost of forging, lime kiln is a project with a large investment cost, and it is necessary to have a capital blessing of more than one million yuan or even tens of millions of yuan in the early stage of engineering construction, even if it is a small and medium-sized lime kiln project, the investment in some rural areas is more than one million yuan.

Hello, I'm glad to answer for you: The profit of environmental protection lime kiln is 35%. Additional Information:

Environmental protection lime kiln refers to a kind of lime kiln that can meet the national environmental protection requirements by adding dust removal and environmental protection equipment on the original basis. The new environmentally friendly lime kiln is a new type of kiln designed and developed by introducing foreign advanced kiln technology, which is more outstanding in environmental protection, and has been widely recognized and promoted in practical applications. Now the country is also advocating energy conservation and environmental protection, and the new environmentally friendly lime kiln adapts to this trend.

Xinxiang Great Wall Machinery Lime Rotary Kiln has an advanced structure, which can quickly improve the preheating effect, increase the decomposition rate of calcium carbonate, and has the advantages of high fuel calorific value, low heat consumption and lime quality. Compared with the traditional lime rotary kiln, the output is increased by 30%, the heat loss and infiltration resistance are reduced by 40%, and the exhaust flue gas temperature is < 250, which is convenient for dust collection and can fully meet the requirements of modern energy saving and environmental protection.