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Coagulant for wet spray material and its using method

A wet spray and coagulant technology, applied in the field of coagulants, can solve the problems of coagulation and coagulation effect, inability to thicken and inconspicuous spray materials of polyacrylate

Inactive Publication Date: 2007-02-07
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned coagulants cannot thicken and coagulate the injection material containing polyacrylate or the coagulation effect is not obvious.

Method used

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  • Coagulant for wet spray material and its using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: By weight, 5 parts of aluminum dihydrogen phosphate and 2 parts of magnesium chloride were added to 93 parts of water, and stirred to dissolve it into an aqueous solution. As the coagulant of the injection material with sodium polyacrylate as the water reducing agent, its addition is 0.1% of the weight of the injection material. The coagulant has a very good coagulation-accelerating effect, and can make the injection material thicken and lose fluidity within 10 seconds.

[0029] Table 1 shows other performance indicators of the injection material using the coagulant of this example, including the conditions of baking at 110°C for 24 hours and at 1450°C for 3 hours. It can be seen from Table 1 that the coagulation accelerator of the present invention not only has a very good coagulation acceleration effect, but also other performance indicators of the injection material are also excellent.

Embodiment 2

[0030] Example 2: By weight, 10 parts of aluminum dihydrogen phosphate and 5 parts of magnesium chloride were added to 85 parts of water, and stirred to dissolve it into an aqueous solution. As the coagulant of the injection material with sodium polyacrylate as the water reducing agent, its addition is 0.1% of the weight of the injection material. The coagulant has a very good coagulation-accelerating effect, and can make the injection material thicken and lose fluidity within 5 seconds.

[0031] Table 1 shows other performance indicators of the injection material using the coagulant of this example, including the conditions of baking at 110°C for 24 hours and at 1450°C for 3 hours. It can be seen from Table 1 that the coagulation accelerator of the present invention not only has a very good coagulation acceleration effect, but also other performance indicators of the injection material are also excellent.

Embodiment 3

[0032] Example 3: By weight, 30 parts of aluminum dihydrogen phosphate and 4 parts of magnesium chloride were added to 66 parts of water, and stirred to dissolve it into an aqueous solution. As the coagulant of the injection material with sodium polyacrylate as the water reducing agent, its addition amount is 0.1% of the injection material. The coagulant has a very rapid coagulation effect, which can make the spray material thicken and lose fluidity within 3 seconds, and become a hardened solid.

[0033] Table 1 shows other performance indicators of the injection material using the coagulant of this example, including the conditions of baking at 110°C for 24 hours and at 1450°C for 3 hours. It can be seen from Table 1 that the coagulation accelerator of the present invention not only has a very good coagulation acceleration effect, but also other performance indicators of the injection material are also excellent.

[0034] performance

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Abstract

The present invention provides a kind of coagulant for wet sprayed material and its usage. The coagulant consists of aluminum dihydrogen phosphate, magnesium chloride and water. The coagulant is used in the following steps: 1. feeding certain amount of coagulant into compressed air pipeline to atomize; and 2. conveying the atomized coagulant to nozzle for spraying together with wet sprayed material. Using the coagulant can solve the problem of densifying and solidifying wet sprayed material containing polyacylate or phosphate well, and make the sprayed material adhered well onto the sprayed surface and produce no crack during stoving. In addition, the coagulant has small added amount without affecting the use performance of the wet sprayed material.

Description

technical field [0001] The present invention relates to a coagulation accelerator for wet shotcrete, in particular to a coagulant accelerator with a novel coagulation acceleration mechanism, which is suitable for spraying various wet spray materials such as refractory castables, cement concrete and coatings for spraying construction. Background technique [0002] Coagulants for wet blasting generally include calcium chloride, sodium silicate and sodium aluminate. Calcium salts such as calcium acetate and calcium chloride and compounds containing calcium ions such as slaked lime have the same or similar coagulation-accelerating principles, which mainly react with phosphates such as sodium tripolyphosphate as a dispersant in castables. Specifically, the solubility product of calcium ions and phosphate ions is very small, so when a higher concentration of calcium salt is added as a coagulant, the phosphate ions that encounter the dispersant will react and deposit, thus Makes d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B22/16C04B24/26C04B22/12
Inventor 田守信姚金甫甘菲芳
Owner BAOSHAN IRON & STEEL CO LTD
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