System for joint production of carbide, lime nitrogen and carbon black and method

A joint production and lime nitrogen technology, applied in the direction of nitrogen fertilizer, carbide, cyanamide fertilizer, etc., can solve the problems of environmental pollution, withering, and small proportion of powdered lime nitrogen

Pending Publication Date: 2017-09-05
SHENWU TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing domestic lime nitrogen is basically in the form of powder. As an agricultural fertilizer, the powder will fly when it is applied, which will seriously pollute the environment. At the same time, the powder floating on the leaves of the crops will cause the crops to bu

Method used

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  • System for joint production of carbide, lime nitrogen and carbon black and method
  • System for joint production of carbide, lime nitrogen and carbon black and method
  • System for joint production of carbide, lime nitrogen and carbon black and method

Examples

Experimental program
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Effect test

Embodiment

[0091] Put the calcium carbide liquid (1800-2200 degrees Celsius) released from the liquid outlet of the calcium carbide furnace into the calcium carbide crucible, hoist it from the workshop crane to the top of the calcium carbide granulation tower and pour it into the middle tank of the calcium carbide liquid, control the flow at the outlet of the middle tank, and flow at a certain height To the upper part of the rotating disk of the rotary granulator, relying on the centrifugal force generated by the rotation of the rotating disk, the calcium carbide liquid disperses and flows to the circumference and the lower part of the rotating disk to distribute the cold CO 2 The action of the airflow forms a slit with the rotating disk so that the airflow ejects the cutting calcium carbide liquid film at a high speed to form droplets, and the speed of the rotating disk adopts the method of frequency conversion speed regulation. By adjusting the rotating disk speed and the gas flow rate, ...

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PUM

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Abstract

The invention discloses a system and method for the joint production of calcium carbide, lime nitrogen and carbon black. The system includes: a calcium carbide granulation tower, in which a heat exchange area and a gas distribution area are defined from top to bottom. The granulator includes a rotating disk and a rotating shaft arranged at the lower end of the rotating disk. A carbon dioxide distribution disk is arranged below the rotating disk. An inlet of calcium carbide liquid and an outlet of carbon dioxide after heat exchange are arranged at the upper end of the heat exchange area. A second carbon dioxide is arranged in the gas distribution area. Inlet and outlet of calcium carbide particles; nitriding furnace, which defines the nitriding reaction space and gas distribution space from top to bottom. The nitriding reaction space has an inlet of calcium carbide particles and an outlet of gas after nitriding. Lime nitrogen outlet; first cyclone separator, with mixed gas inlet, first dedusted gas outlet and dust outlet containing lime nitrogen powder and carbon black; powder separation device, with mixed dust inlet, lime nitrogen powder outlet and carbon black Export.

Description

technical field [0001] The invention belongs to the technical field of chemical industry. Specifically, the invention relates to a combined production system and method of calcium carbide, lime nitrogen and carbon black. Background technique [0002] Lime nitrogen has a wide range of uses in agriculture. Such as making rice base fertilizer, eliminating acidity of soil, supplementing calcium of plants, etc. Among the calcium chemical fertilizers, the calcium content of calcium nitrate is 19.4%, the calcium content of superphosphate is 18-21%, the calcium content of calcium magnesium phosphate fertilizer is 21-24%, and the calcium content of phosphate rock powder is 20-35%. %. The calcium content of lime nitrogen is 38.5%, and its fertilizer effect is much higher than other calcium fertilizers. Lime nitrogen has a significant effect on supplementing calcium in plants, especially calcium-loving plants. On the schistosomiasis defense line, use lime nitrogen to eliminate snai...

Claims

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Application Information

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IPC IPC(8): C01B32/942C05C7/00C09C1/48
CPCC05C7/00C01P2004/32C01P2004/51C01P2004/60C09C1/48
Inventor 巩志坚温雨鑫丁力陈峨远忠森喻善均郭文林吴道洪刘迎立
Owner SHENWU TECH GRP CO LTD
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