Planting sand and its preparation method

A solid waste and component technology, applied in the field of sand planting, can solve the problems of poor water and fertilizer retention of sand, single fixed element components, etc., and achieve the effect of meeting the needs of plant growth, uniform distribution, and conducive to plant growth

Inactive Publication Date: 2017-12-19
GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the prior art and aim at the problems existing in the current planting sand, the present invention aims to prepare a porous structure planting sand by using solid waste such as fly ash, coal gangue, tailings, slag, etc., which can effectively relieve the solid Waste pollution problems, and at the same time, it can solve the problems of poor water and fertilizer retention and single fixed element components in the traditional planting sand structure.

Method used

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  • Planting sand and its preparation method
  • Planting sand and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Weigh 100 parts of fly ash, 10 parts of bentonite, 10 parts of expanded perlite and 1 part of sodium lignosulfonate, and mix them uniformly in a blender for later use;

[0033] (2) Pour the mixture obtained in step (1) into a pottery sand granulator, and take 25 parts of water and pour it into the granulator, and granulate at a rotating speed of 2000r / min;

[0034] (3) Put the prepared granules into a drying oven at 70°C for drying;

[0035] (4) The dried grains are heated at 30°C / min to 600°C, then at 3°C / min to 700°C, and finally at 20°C / min to 1000°C for 20 minutes to obtain planting sand. ;

[0036] (5) Take 400mL of the planting sand prepared above and spread it in a 500mL flower pot, insert garlic into the planting sand, add 150mL of the prepared nutrient solution (1wt%), observe and record the growth of the garlic seedlings.

Embodiment 2

[0038] (1) Weigh 100 parts of fly ash, 10 parts of bentonite and 1 part of sodium lignin sulfur, and mix them uniformly in a blender for later use;

[0039] (2) Pour the mixture obtained in step (1) into a pottery sand granulator, and take 20 parts of water and pour it into the granulator, and granulate at a rotating speed of 2500r / min;

[0040] (3) Put the prepared granules into a drying oven at 100°C for drying;

[0041] (4) The dried grains are heated to 600°C at 25°C / min, then to 700°C at 4°C / min, and finally to 950°C at 15°C / min for 30 minutes to obtain planting sand;

[0042] (5) Take 400mL of the planting sand prepared above and spread it in a 500mL flower pot, insert garlic into the planting sand, add 150mL of the prepared nutrient solution (1wt%), observe and record the growth of the garlic seedlings.

Embodiment 3

[0044] (1) Weigh 100 parts of coal gangue fine powder, 5 parts of kaolin, 10 parts of vermiculite and 1.5 parts of polycarboxylate superplasticizer, and mix them uniformly in a mixer for use;

[0045] (2) Pour the mixture obtained in step (1) into the pottery sand granulator, and take 30 parts of water and pour it into the granulator, and granulate at a rotating speed of 3000r / min;

[0046] (3) Put the prepared granules into a drying oven at 120°C for drying;

[0047] (4) The dried grains are heated to 600°C at 35°C / min, then to 700°C at 3°C / min, and finally to 1000°C at 15°C / min for 30 minutes to obtain planting sand;

[0048] (5) Take 400mL of the planting sand prepared above and spread it in a 500mL flower pot, insert garlic into the planting sand, add 150mL of the prepared nutrient solution (1wt%), observe and record the growth of the garlic seedlings.

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Abstract

The invention provides planting sand and its preparation method. The planting sand is prepared from, by mass, 100 parts of solid waste, 0-30 parts of pore forming agents, 5-15 parts of plasticizer, 0.5-2 parts of water reducing agent and 15-30 parts of water. The planting sand is prepared by using the solid waste as raw materials, the solid waste is effectively used, the cost of raw materials is reduced, the planting sand has a porous structure and has the functions of water and fertilizer conservation, and loss of water and fertilizer can be prevented.

Description

technical field [0001] The invention relates to the field of sand planting, in particular to a planting sand prepared by using solid waste as a raw material and a preparation method thereof. Background technique [0002] With the rapid development of social economy and the over-exploitation of soil by human beings, there is less and less arable soil and the decline of crop yield seriously restricts the development of economy. The existing planting sand contains a porous structure, has the function of water and fertilizer retention, and can be used as a cultivation substrate instead of soil for planting crops. [0003] Commonly used cultivation substrates other than soil include vermiculite, perlite, slag, peat, rock wool, etc. The vermiculite matrix is ​​easy to break, cannot be subjected to heavy pressure, and has a short service life; the perlite matrix is ​​too light, which easily causes dust pollution and is difficult to fix plants; the slag matrix is ​​easily polluted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
CPCA01G24/00A01G24/35
Inventor 贾屹海赵凯陈思颖
Owner GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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