A support hydraulic device and its working method in the construction of highly flexible mortar working face
A technology of hydraulic device and working face, which is applied to mine roof supports, earth-moving drilling, mining equipment, etc., can solve the problems of poor lateral force resistance of supports, poor working environment safety, low moving speed, etc. Balanced load and impact load, reduced long-term close-range operation, and high degree of automation
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Embodiment 1
[0049] Manufacture protective cover 5 of the present invention according to the following steps, and in parts by weight:
[0050] Step 1: Add 3750 parts of ultrapure water with a conductivity of 4.32μS / cm into the reactor, start the agitator in the reactor at a speed of 95rpm, start the heating pump, and raise the temperature in the reactor to 74°C; add in sequence 88 parts of N-(4-hydroxy-3-methoxybenzyl)-8-methylnonanamide, 8-methyl-N-[(4-hydroxy-3-methoxyphenyl)-methyl] -95 parts of -(trans)-6-nonenylamide, 47 parts of methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propionate, stir until completely dissolved, and adjust the pH 3.6. Adjust the speed of the agitator to 116rpm, the temperature is 114°C, and the esterification reaction takes 14 hours;
[0051] Step 2: Take 45 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, 2,2'-[(3,3'-dichloro-1,1 77 parts of '-biphenyl-4,4'-diyl)diazo]bis[N-(4-chloro-2-methylphenyl)-3-oxo]butanamide were pulverized, and the particle...
Embodiment 2
[0056] Manufacture protective cover 5 of the present invention according to the following steps, and in parts by weight:
[0057] Step 1: Add 4760 parts of ultrapure water with a conductivity of 7.46μS / cm into the reactor, start the agitator in the reactor at a speed of 139rpm, start the heating pump, and raise the temperature in the reactor to 145°C; add in sequence 269 parts of N-(4-hydroxy-3-methoxybenzyl)-8-methylnonanamide, 8-methyl-N-[(4-hydroxy-3-methoxyphenyl)-methyl] 158 parts of -(trans)-6-nonenylamide, 110 parts of methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propionate, stir until completely dissolved, and adjust the pH 8.9, adjust the speed of the agitator to 168rpm, the temperature is 149°C, and the esterification reaction is 28 hours;
[0058] Step 2: Take 71 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, 2,2'-[(3,3'-dichloro-1,1 103 parts of '-biphenyl-4,4'-diyl)diazo]bis[N-(4-chloro-2-methylphenyl)-3-oxo]butyramide were pulverized, and the partic...
Embodiment 3
[0063] Manufacture protective cover 5 of the present invention according to the following steps, and in parts by weight:
[0064] Step 1: Add 4250 parts of ultrapure water with a conductivity of 5.92μS / cm into the reactor, start the stirrer in the reactor at a speed of 115rpm, start the heating pump, and raise the temperature in the reactor to 110°C; add in sequence 178 parts of N-(4-hydroxy-3-methoxybenzyl)-8-methylnonanamide, 8-methyl-N-[(4-hydroxy-3-methoxyphenyl)-methyl] 126 parts of -(trans)-6-nonenylamide, 78 parts of methyl 2-[4-(2,4-dichlorophenoxy)phenoxy]propionate, stir until completely dissolved, and adjust the pH 6.2. Adjust the speed of the agitator to 141rpm, the temperature is 131°C, and the esterification reaction takes 21 hours;
[0065] Step 2: Take 62 parts of 5-hydroxy-4-(p-hydroxybenzyl)-3',3-dimethoxybibenzyl, 2,2'-[(3,3'-dichloro-1,1 88 parts of '-biphenyl-4,4'-diyl)diazo]bis[N-(4-chloro-2-methylphenyl)-3-oxo]butanamide were pulverized, and the partic...
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