Ceramic proppant added with aluminium dihydrogen phosphate and preparation method of ceramic proppant

A technology of aluminum dihydrogen phosphate and proppant, which is applied in chemical instruments and methods, earthwork drilling, drilling composition, etc. The effect of powder removal and crack generation, product quality improvement, and simple preparation method

Inactive Publication Date: 2014-01-15
ZIBO JIAFENG MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There is a common problem in the production of ceramsite proppant, that is, the strength of green ball is low, which leads to easy de-powdering in the production process, resulting in micro-cracks, turbidity, acid solubility exceeding the standard, etc., affecting the quality of its products, ceramsite proppant Manufacturers of ceramsite proppant often add some binders such as bauxite or clay raw material, starch, dextrin, etc. to the formula to improve the strength of ceramsite proppa

Method used

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  • Ceramic proppant added with aluminium dihydrogen phosphate and preparation method of ceramic proppant

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] Prepare 5kg of granulated powder, mix aluminum dihydrogen phosphate into a 12% concentration solution, use a disc granulation machine to granulate, add 1.5kg of granulated powder to the granulator, start the turntable, the turntable rotates clockwise, and keep the speed at 30rpm No change, make the granulated powder make a parabolic motion in the disc granulator; add 2g of the prepared aluminum dihydrogen phosphate aqueous solution into the atomizing spray can, and spray evenly on the thrown granulated powder until the granulated powder appears For small particles with clear particle size, add 50g of granulated powder at this time, while continuing to spray, repeat adding every 11 seconds, until the remaining 3.5g of granulated powder is added, the small particles continue to grow to 0.6-0.9mm, stop adding granulated powder And spray, the disc granulator continues to rotate for 40 minutes to form a ceramsite pellet, and then calcined at 1100°C for 2 hour...

Example Embodiment

[0022] Example 2

[0023] Prepare 5kg of granulated powder, mix aluminum dihydrogen phosphate into a 20% concentration solution, use a disc granulating machine to granulate, add 1.1kg of granulated powder to the granulator, start the turntable, turn the turntable clockwise, keep the speed at 50rpm No change, make the granulated powder make a parabolic motion in the disc granulator; add 0.88g of the prepared aluminum dihydrogen phosphate aqueous solution into the atomizing spray can, and spray evenly on the thrown granulated powder until the granulated powder When small particles with clear particle size appear, add 80g of granulated powder and continue to spray at the same time. Repeat the addition every 10 seconds until the remaining 3.9g of granulated powder is added. The small particles continue to grow to 0.6-0.9mm, stop adding granulation Powder and spray, the disc granulator continues to rotate for 50 minutes to form a ceramsite green ball, which is then calcined at 1250°C ...

Example Embodiment

[0024] Example 3

[0025] Prepare 5kg of granulated powder, mix aluminum dihydrogen phosphate into 8% concentration solution, use disc granulation machine to granulate, add 1kg of granulated powder to the granulator, start the turntable, turn the turntable clockwise, keep the speed at 40rpm Change, make the granulated powder make a parabolic movement in the disc granulator; add 1.25g of the prepared aluminum dihydrogen phosphate aqueous solution into the atomizing spray can, and spray evenly on the thrown granulated powder until the granulated powder appears For small particles with clear particle size, add 100g of granulating powder at this time, while continuing to spray, repeat the addition every 8 seconds, until the remaining 4g of granulated powder is added, the small particles continue to grow to 0.6-0.9mm, stop adding granulated powder and After spraying, the disc granulator continues to rotate for 30 minutes to form a ceramsite green ball, which is then calcined at 1400°C...

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Abstract

The invention relates to a ceramic proppant added with aluminium dihydrogen phosphate and a preparation method of the ceramic proppant. The ceramic proppant is prepared by adding aluminium dihydrogen phosphate into granulation powder. The preparation method comprises the following steps: firstly, adding part of granulation powder into a granulator, then adding aluminium dihydrogen phosphate and finally adding the rest of granulation powder one or more times to prepare ceramsite blank balls; finally, calcining the ceramsite blank balls to obtain the ceramic proppant. The ceramic proppant has lower turbidity, acid solubility and breakage rate; the intensity of the blank balls in the preparation process is improved; the breakage rate of the finished product is reduced by 1 to 2 percent; powder fall-off and cracks are reduced; product quality is improved. Moreover, the preparation method is simple and is easy to operate.

Description

technical field [0001] The invention relates to a ceramsite proppant added with aluminum dihydrogen phosphate and a preparation method thereof. Background technique [0002] There is a common problem in the production of ceramsite proppant, that is, the strength of green ball is low, which leads to easy de-powdering in the production process, resulting in micro-cracks, turbidity, acid solubility exceeding the standard, etc., affecting the quality of its products, ceramsite proppant Manufacturers of ceramsite proppant often add some binders such as bauxite or clay raw material, starch, dextrin, etc. to the formula to improve the strength of ceramsite proppant balls, but these binders are generally organic binders or contain organic binders. For materials with binder components, the green ball can maintain a certain strength under normal temperature conditions, but under medium temperature conditions, these organic binders will fail, resulting in reduced strength of the green ...

Claims

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Application Information

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IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 唐珂孙洪巍金宝文高光辉
Owner ZIBO JIAFENG MINING
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