Automatic cleaning sludge vibrating screen device and working method thereof
A sludge vibrating screen and automatic cleaning technology, which is applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of unreasonable setting of sand screens, difficult quality assurance, and difficult sludge Easy to operate and maintain, low manufacturing cost, and thorough sand screening
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Embodiment 1
[0046] The scraper 4-6 of the present invention is manufactured according to the following steps, and calculated in parts by weight:
[0047] Step 1: Add 3470 parts of ultrapure water with a conductivity of 3.18μS / cm to the reactor, start the stirrer in the reactor, rotate at 113rpm, start the heat pump, and increase the temperature in the reactor to 114℃; add sequentially 55 parts of methyl 4-formyl-3-(phenylsulfonyl)benzoate, 35 parts of benzyl 3-aminophenyl carbamate, 4-(4-aminophenyl)pyrrolo[1,2- d] [1,2,4] Thiazide-1(2H)-one 111 parts, stir until completely dissolved, adjust the pH to 5.7, adjust the stirrer speed to 142rpm, the temperature is 127℃, and the esterification reaction is 17 hours ;
[0048] Step 2: Take 154 parts of 4-[(2-amino-4,5-dichlorophenyl)amino]phenethyl alcohol, 3-(N,N-diacetoxyethyl)amino-4-methoxyacetyl 161 parts of aniline were crushed, and the powder particle size was 860 mesh; 1-(3,4-dimethoxybenzyl)-1,2,5,6-tetrahydro-4-methoxy-2-oxo was added 21...
Embodiment 2
[0053] The scraper 4-6 of the present invention is manufactured according to the following steps, and calculated in parts by weight:
[0054] Step 1: Add 4,500 parts of ultrapure water with a conductivity of 6.72μS / cm to the reactor, start the stirrer in the reactor, rotate at 169rpm, start the heat pump, and increase the temperature in the reactor to 182℃; add sequentially 107 parts of methyl 4-formyl-3-(phenylsulfonyl)benzoate, 128 parts of benzyl 3-aminophenyl carbamate, 4-(4-aminophenyl)pyrrolo[1,2- d][1,2,4]thiazine-1(2H)-ketone 195 parts, stir until completely dissolved, adjust the pH to 7.6, adjust the stirrer speed to 208rpm, the temperature is 187℃, and the esterification reaction is 25 hours ;
[0055] Step 2: Take 226 parts of 4-[(2-amino-4,5-dichlorophenyl)amino] phenethyl alcohol, 3-(N,N-diacetoxyethyl)amino-4-methoxyacetyl 231 parts of aniline were crushed, the powder particle size was 1340 mesh; 1-(3,4-dimethoxybenzyl)-1,2,5,6-tetrahydro-4-methoxy-2-oxo was added ...
Embodiment 3
[0060] The scraper 4-6 of the present invention is manufactured according to the following steps, and calculated in parts by weight:
[0061] Step 1: Add 3980 parts of ultrapure water with a conductivity of 4.95μS / cm to the reactor, start the stirrer in the reactor, rotate at 141rpm, start the heat pump, and increase the temperature in the reactor to 148℃; add sequentially 81 parts of methyl 4-formyl-3-(phenylsulfonyl)benzoate, 84 parts of benzyl 3-aminophenyl carbamate, 4-(4-aminophenyl)pyrrolo[1,2- d][1,2,4]thiazine-1(2H)-ketone 153 parts, stir until completely dissolved, adjust the pH to 6.6, adjust the stirrer speed to 175rpm, the temperature is 157℃, and the esterification reaction is 21 hours ;
[0062] Step 2: Take 190 parts of 4-[(2-amino-4,5-dichlorophenyl)amino]phenethyl alcohol, 3-(N,N-diacetoxyethyl)amino-4-methoxyacetyl 196 parts of aniline were crushed, the powder particle size was 1100 mesh; 1-(3,4-dimethoxybenzyl)-1,2,5,6-tetrahydro-4-methoxy-2-oxo was added 271 ...
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