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Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars

ISSN 2594-357X

23º Seminário de Mineração — vol. 23, num.23 (2024)

Title

REDUÇÃO DA GERAÇÃO DE LAMAS NA MOAGEM PRIMÁRIA DE MINÉRIO DE FERRO ITABIRÍTICO ATRAVÉS DA OTIMIZAÇÃO DE PARÂMETROS OPERACIONAIS

REDUCTION OF MUD GENERATION IN PRIMARY GRINDING OF ITABIRITE IRON ORE THROUGH OPTIMIZATION OF OPERATIONAL PARAMETERS

Authorship

GUIMARÃES, CLAUDINEI ROBERTO; CASTRO, GABRIEL GAVA DE; LEITE, RICARDO DA SILVA; CIPRIANO, PALOMA PAULA GOMES; ULIANA, ALEXANDRO; GUIMARÃES, MARCOS GERALDO OLIVEIRA

GUIMARÃES, CLAUDINEI ROBERTO
GUIMARÃES, CLAUDINEI ROBERTO

I am this author

CASTRO, GABRIEL GAVA DE
CASTRO, GABRIEL GAVA DE

I am this author

LEITE, RICARDO DA SILVA
LEITE, RICARDO DA SILVA

I am this author

CIPRIANO, PALOMA PAULA GOMES
CIPRIANO, PALOMA PAULA GOMES

I am this author

ULIANA, ALEXANDRO
ULIANA, ALEXANDRO

I am this author

GUIMARÃES, MARCOS GERALDO OLIVEIRA
GUIMARÃES, MARCOS GERALDO OLIVEIRA

I am this author

DOI

10.5151/2594-357X-41053

Downloads

6 Downloads

Abstract

ESTE TRABALHO ABORDA O IMPACTO DAS VARIáVEIS DE PROCESSOS NA GERAçãO DE LAMAS, NA ETAPA DA MOAGEM PRIMáRIA DE MINéRIO DE FERRO ITABIRíTICO. LAMAS, NESTE CONTEXTO, SãO PARTíCULAS MENORES QUE 10 MICROMETROS, CONTIDAS NO ROM BRITADO, QUE PODEM SER NATURAIS OU GERADAS DURANTE AS ETAPAS DE COMINUIçãO, NA QUAL A MOAGEM POSSUI GRANDE PARTICIPAçãO. A PRESENçA DE LAMAS é MALéFICA AO PROCESSO DE FLOTAçãO E PRECISAM SER REMOVIDAS NA ETAPA DE DESLAMAGEM. ISTO ACARRETA EM AUMENTO DA GERAçãO DE REJEITOS E CONSEQUENTEMENTE, REDUçãO DA VIDA úTIL DA CAVA UTILIZADA PARA DISPOSIçãO DE TAL. FORAM REALIZADOS VáRIOS AJUSTES OPERACIONAIS E, APóS A ESTABILIZAçãO DE CADA UM, FORAM FEITAS AMOSTRAGENS A FIM DE MENSURAR A GERAçãO DE LAMAS. OS RESULTADOS OBTIDOS NESTE TRABALHO, EVIDENCIAM O IMPACTO E SIGNIFICATIVA REDUçãO DE LAMAS DURANTE A VARIAçãO DOS PARâMETROS OPERACIONAIS EM ESTUDO.

 

THIS WORK ADDRESSES THE IMPACT OF PROCESS VARIABLES ON THE GENERATION OF SLUDGE IN THE PRIMARY GRINDING STAGE OF ITABIRITIC IRON ORE. SLUDGE, IN THIS CONTEXT, ARE PARTICLES SMALLER THAN 10 MICROMETERS, CONTAINED IN THE CRUSHED ROM, WHICH CAN BE NATURAL OR GENERATED DURING THE COMMINUTION STAGES, IN WHICH GRINDING PLAYS A LARGE ROLE. THE PRESENCE OF SLUDGE IS HARMFUL TO THE FLOTATION PROCESS AND NEEDS TO BE REMOVED IN THE DESLIMING STAGE. THIS LEADS TO AN INCREASE IN THE GENERATION OF WASTE AND CONSEQUENTLY, A REDUCTION IN THE USEFUL LIFE OF THE PIT USED TO DISPOSE OF IT. SEVERAL OPERATIONAL ADJUSTMENTS WERE MADE AND, AFTER STABILIZATION OF EACH ONE, SAMPLES WERE TAKEN TO MEASURE THE GENERATION OF SLUDGE. THE RESULTS OBTAINED IN THIS WORK DEMONSTRATE THE IMPACT AND SIGNIFICANT REDUCTION OF SLUDGE DURING THE VARIATION OF THE OPERATIONAL PARAMETERS UNDER STUDY.

Keywords

Geração de Lamas; Moagem Primária; Variáveis de Processos

Mud Generation; Primary Grinding; Process Variables.

How to refer

GUIMARÃES, CLAUDINEI ROBERTO; CASTRO, GABRIEL GAVA DE; LEITE, RICARDO DA SILVA; CIPRIANO, PALOMA PAULA GOMES; ULIANA, ALEXANDRO; GUIMARÃES, MARCOS GERALDO OLIVEIRA. REDUÇÃO DA GERAÇÃO DE LAMAS NA MOAGEM PRIMÁRIA DE MINÉRIO DE FERRO ITABIRÍTICO ATRAVÉS DA OTIMIZAÇÃO DE PARÂMETROS OPERACIONAIS , p. 499-510. In: 23º Seminário de Mineração, São Paulo, Brasil, 2024.
ISSN: 2594-357X , DOI 10.5151/2594-357X-41053

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(1/1) ErrorException

fwrite(): write of 1826 bytes failed with errno=28 No space left on device
in StreamHandler.php line 131
at HandleExceptions->handleError(8, 'fwrite(): write of 1826 bytes failed with errno=28 No space left on device', '/var/www/webroot/ROOT/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php', 131, array('stream' => resource, 'record' => array('message' => 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', 'context' => array('exception' => object(ErrorException)), 'level' => 400, 'level_name' => 'ERROR', 'channel' => 'production', 'datetime' => object(DateTime), 'extra' => array(), 'formatted' => '[2025-05-31 23:00:13] production.ERROR: file_put_contents(): write of 376 bytes failed with errno=28 No space left on device {"exception":"[object] (ErrorException(code: 0): file_put_contents(): write of 376 bytes failed with errno=28 No space left on device at /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122)[stacktrace]#0 [internal function]: Illuminate\\\\Foundation\\\\Bootstrap\\\\HandleExceptions->handleError(8, \'file_put_conten...\', \'/var/www/webroo...\', 122, Array)#1 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(122): file_put_contents(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', 2)#2 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/FileSessionHandler.php(83): Illuminate\\\\Filesystem\\\\Filesystem->put(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', true)#3 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Store.php(128): Illuminate\\\\Session\\\\FileSessionHandler->write(\'MvjHHQHuEf4cWHS...\', \'a:5:{s:6:\\"_toke...\')#4 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): Illuminate\\\\Session\\\\Store->save()#5 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): Illuminate\\\\Session\\\\Middleware\\\\StartSession->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#6 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminateMiddleware(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#7 /var/www/webroot/ROOT/public/index.php(59): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#8 {main}"} ')))
at fwrite(resource, '[2025-05-31 23:00:13] production.ERROR: file_put_contents(): write of 376 bytes failed with errno=28 No space left on device {"exception":"[object] (ErrorException(code: 0): file_put_contents(): write of 376 bytes failed with errno=28 No space left on device at /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122)[stacktrace]#0 [internal function]: Illuminate\\\\Foundation\\\\Bootstrap\\\\HandleExceptions->handleError(8, \'file_put_conten...\', \'/var/www/webroo...\', 122, Array)#1 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(122): file_put_contents(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', 2)#2 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/FileSessionHandler.php(83): Illuminate\\\\Filesystem\\\\Filesystem->put(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', true)#3 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Store.php(128): Illuminate\\\\Session\\\\FileSessionHandler->write(\'MvjHHQHuEf4cWHS...\', \'a:5:{s:6:\\"_toke...\')#4 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): Illuminate\\\\Session\\\\Store->save()#5 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): Illuminate\\\\Session\\\\Middleware\\\\StartSession->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#6 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminateMiddleware(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#7 /var/www/webroot/ROOT/public/index.php(59): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#8 {main}"} ')in StreamHandler.php line 131
at StreamHandler->streamWrite(resource, array('message' => 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', 'context' => array('exception' => object(ErrorException)), 'level' => 400, 'level_name' => 'ERROR', 'channel' => 'production', 'datetime' => object(DateTime), 'extra' => array(), 'formatted' => '[2025-05-31 23:00:13] production.ERROR: file_put_contents(): write of 376 bytes failed with errno=28 No space left on device {"exception":"[object] (ErrorException(code: 0): file_put_contents(): write of 376 bytes failed with errno=28 No space left on device at /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122)[stacktrace]#0 [internal function]: Illuminate\\\\Foundation\\\\Bootstrap\\\\HandleExceptions->handleError(8, \'file_put_conten...\', \'/var/www/webroo...\', 122, Array)#1 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(122): file_put_contents(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', 2)#2 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/FileSessionHandler.php(83): Illuminate\\\\Filesystem\\\\Filesystem->put(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', true)#3 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Store.php(128): Illuminate\\\\Session\\\\FileSessionHandler->write(\'MvjHHQHuEf4cWHS...\', \'a:5:{s:6:\\"_toke...\')#4 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): Illuminate\\\\Session\\\\Store->save()#5 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): Illuminate\\\\Session\\\\Middleware\\\\StartSession->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#6 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminateMiddleware(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#7 /var/www/webroot/ROOT/public/index.php(59): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#8 {main}"} '))in StreamHandler.php line 117
at StreamHandler->write(array('message' => 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', 'context' => array('exception' => object(ErrorException)), 'level' => 400, 'level_name' => 'ERROR', 'channel' => 'production', 'datetime' => object(DateTime), 'extra' => array(), 'formatted' => '[2025-05-31 23:00:13] production.ERROR: file_put_contents(): write of 376 bytes failed with errno=28 No space left on device {"exception":"[object] (ErrorException(code: 0): file_put_contents(): write of 376 bytes failed with errno=28 No space left on device at /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122)[stacktrace]#0 [internal function]: Illuminate\\\\Foundation\\\\Bootstrap\\\\HandleExceptions->handleError(8, \'file_put_conten...\', \'/var/www/webroo...\', 122, Array)#1 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(122): file_put_contents(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', 2)#2 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/FileSessionHandler.php(83): Illuminate\\\\Filesystem\\\\Filesystem->put(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', true)#3 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Store.php(128): Illuminate\\\\Session\\\\FileSessionHandler->write(\'MvjHHQHuEf4cWHS...\', \'a:5:{s:6:\\"_toke...\')#4 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): Illuminate\\\\Session\\\\Store->save()#5 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): Illuminate\\\\Session\\\\Middleware\\\\StartSession->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#6 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminateMiddleware(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#7 /var/www/webroot/ROOT/public/index.php(59): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#8 {main}"} '))in AbstractProcessingHandler.php line 39
at AbstractProcessingHandler->handle(array('message' => 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', 'context' => array('exception' => object(ErrorException)), 'level' => 400, 'level_name' => 'ERROR', 'channel' => 'production', 'datetime' => object(DateTime), 'extra' => array(), 'formatted' => '[2025-05-31 23:00:13] production.ERROR: file_put_contents(): write of 376 bytes failed with errno=28 No space left on device {"exception":"[object] (ErrorException(code: 0): file_put_contents(): write of 376 bytes failed with errno=28 No space left on device at /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122)[stacktrace]#0 [internal function]: Illuminate\\\\Foundation\\\\Bootstrap\\\\HandleExceptions->handleError(8, \'file_put_conten...\', \'/var/www/webroo...\', 122, Array)#1 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php(122): file_put_contents(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', 2)#2 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/FileSessionHandler.php(83): Illuminate\\\\Filesystem\\\\Filesystem->put(\'/var/www/webroo...\', \'a:5:{s:6:\\"_toke...\', true)#3 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Store.php(128): Illuminate\\\\Session\\\\FileSessionHandler->write(\'MvjHHQHuEf4cWHS...\', \'a:5:{s:6:\\"_toke...\')#4 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(87): Illuminate\\\\Session\\\\Store->save()#5 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(218): Illuminate\\\\Session\\\\Middleware\\\\StartSession->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#6 /var/www/webroot/ROOT/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(189): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminateMiddleware(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#7 /var/www/webroot/ROOT/public/index.php(59): Illuminate\\\\Foundation\\\\Http\\\\Kernel->terminate(Object(Illuminate\\\\Http\\\\Request), Object(Illuminate\\\\Http\\\\Response))#8 {main}"} '))in Logger.php line 344
at Logger->addRecord(400, 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', array('exception' => object(ErrorException)))in Logger.php line 707
at Logger->error('file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', array('exception' => object(ErrorException)))in Writer.php line 203
at Writer->writeLog('error', 'file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', array('exception' => object(ErrorException)))in Writer.php line 114
at Writer->error('file_put_contents(): write of 376 bytes failed with errno=28 No space left on device', array('exception' => object(ErrorException)))in Handler.php line 113
at Handler->report(object(ErrorException))in Handler.php line 100
at Handler->report(object(ErrorException))in HandleExceptions.php line 81
at HandleExceptions->handleException(object(ErrorException))