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Special environment-friendly calcium hydroxide for tree protection and production method thereof

A technology of calcium hydroxide and production methods, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve the problem of high cost of bituminous coal logistics and transportation, achieve the effects of reducing heat pollution and improving liver function

Pending Publication Date: 2022-04-15
HUNAN HENGSHAN BICHENG CALCIUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current technical conditions, the northern bituminous coal with a calorific value of 5500Kcal / Kg coal, ash content 25.0%, and sulfur <1.0% is required, which causes the disadvantage of high logistics and transportation costs for bituminous coal

Method used

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  • Special environment-friendly calcium hydroxide for tree protection and production method thereof
  • Special environment-friendly calcium hydroxide for tree protection and production method thereof
  • Special environment-friendly calcium hydroxide for tree protection and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Step 1) Select low-grade limestone. The main components in the ore are: 44.0-52.0% calcium oxide, 5.0-12.0% magnesium oxide, 1.0-3.0% aluminum oxide, and 1.5-4.0% silicon dioxide in terms of oxide mass.

[0059] Step 2) Ore crushing, sieving, and washing: choose "two breaks and one sieve" to crush and sieve low-grade limestone ore, select 20mm ore for backup, and wash 20mm limestone ore to be used as raw material for quicklime production, wash The water supply pressure is 0.28MPa.

[0060] Step 3) selection of coal combustion and preparation of coal powder: coal combustion selects coal with calorific value 5000KCal / Kg, sulfur 1.5-2.0%, volatile matter 15.0-25.0%, ash content 20.0-25.0% southern local bituminous coal; vertical cooler is used Dry the coal with the waste heat of the exhaust gas (200-210°C) at the outlet of the vertical preheater to produce 180-mesh coal powder with a pass rate of 98.0% and a moisture content of less than 3.0%.

[0061] Step 4) Preheating ...

Embodiment 2

[0074] Step 1) Select low-grade limestone. The main components in the ore are: 44.0-52.0% calcium oxide, 5.0-12.0% magnesium oxide, 1.0-3.0% aluminum oxide, and 1.5-4.0% silicon dioxide in terms of oxide mass.

[0075] Step 2) Ore crushing, sieving, and washing: choose "two broken and one sieved" to crush and sieve low-grade limestone ore, select 50mm ore for backup, and wash 50mm limestone ore to be used as raw material for quicklime production, wash The water supply pressure is 0.30MPa.

[0076] Step 3) selection of coal combustion and preparation of coal powder: coal combustion selects coal with calorific value 5000KCal / Kg, sulfur 1.5-2.0%, volatile matter 15.0-25.0%, ash content 20.0-25.0% southern local bituminous coal; vertical cooler is used Dry the coal with the waste heat of the exhaust gas (200-210°C) at the outlet of the vertical preheater to produce 180-mesh coal powder with a pass rate of 99.0% and a moisture content of less than 3.0%.

[0077] Step 4) Preheating...

Embodiment 3

[0090] Step 1) Select low-grade limestone. The main components in the ore are: 44.0-52.0% calcium oxide, 5.0-12.0% magnesium oxide, 1.0-3.0% aluminum oxide, and 1.5-4.0% silicon dioxide in terms of oxide mass.

[0091] Step 2) Ore crushing, screening, and washing: choose "two breaking and one screening" to crush and screen low-grade limestone ore, select 30mm ore for backup, and wash 30mm limestone ore to be used as raw material for quicklime production, washing The water supply pressure is 0.29MPa.

[0092] Step 3) selection of coal combustion and preparation of coal powder: coal combustion selects coal with calorific value 5000KCal / Kg, sulfur 1.5-2.0%, volatile matter 15.0-25.0%, ash content 20.0-25.0% southern local bituminous coal; vertical cooler is used Dry the coal with the waste heat of the exhaust gas (200-210°C) at the outlet of the vertical preheater to produce 180-mesh coal powder with a pass rate of 99.0% and a moisture content of less than 3.0%.

[0093] Step 4)...

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Abstract

The invention relates to the technical field of forest protection in winter and spring, in particular to environment-friendly calcium hydroxide special for tree protection and a production method, and the environment-friendly calcium hydroxide is prepared from the following raw materials: ore, fire coal, an insecticide, a thermal insulation material, a dispersing agent I, a dispersing agent II, a dispersing agent III and water. The invention discloses a process and a technology for producing special tree spraying calcium hydroxide for protecting and whitening trees by utilizing low-grade limestone in combination with the characteristics and potential advantages of low-grade limestone mineral resources, lime rotary kiln calcination of companies. The problems that calcium hydroxide is poor in suspension property, materials and water are easy to separate, settle and block, spraying is uneven, the insecticidal effect is not ideal, heat preservation performance is poor, operation is complex and the like in the tree whitewashing process are solved, and spraying fluency and using performance of calcium hydroxide in the tree whitewashing process are improved. The standardization of the special calcium hydroxide for spraying trees in the aspects of production, quality assurance, detection and the like is realized.

Description

technical field [0001] The invention relates to the technical field of tree protection in winter and spring, in particular to an environment-friendly special calcium hydroxide for tree protection and a production method. Background technique [0002] Forest trees themselves are not only primary producers, but also provide a variety of food resources and habitats for consumers at all levels. Thanks to the unique and superior living environment of the forest, all kinds of animals and plants can reproduce, preserve and flourish. The destruction and disappearance of forest ecosystems will have devastating consequences for biodiversity. Therefore, to a certain extent, the existence and diversity of forest ecosystems play a decisive role in biodiversity conservation. [0003] In order to protect trees through winter, agricultural and forestry managers will brush a layer of lime water from the root of the tree trunk to a height of about one meter before winter comes. Brushing on...

Claims

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Application Information

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IPC IPC(8): A01N25/06A01N43/90A01N59/06A01P1/00A01P3/00A01P7/02A01P7/04C04B2/04C04B2/08
Inventor 邓长征邓金营杨雷刘桂兰郭晓军赵军刘勇华
Owner HUNAN HENGSHAN BICHENG CALCIUM IND CO LTD
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