Rotary Vacuum Filters at Sugar Factory
The final stage of the purification process in the plant sap sugar is clarification or precipitation. In this process the sap that has disulfitir (reacts with SO 2 gas) flowed into the vessel deposition (clarifier). In this deposition process resulting clear juice (clarified juice) and juice dirty (mud juice). Dirty sap is processed again to be separated roberto cavalli acqua between the solid solution, so that the resulting sap filter and filter cake. Before 1980 to separate the dirty sap sugar mill using a tool called a filter press. Disadvantages of this tool requires human labor is relatively plentiful and the quality blotongnya still contains a lot of sugar (pol filter cake> 2%). While the advantages of sap produced good quality roberto cavalli acqua filter that can be directly processed in evaporation.
Since the mid-1980s, the sugar mills to switch to a rotary vacuum filter to separate the juice filter with filter cake. By using this tool requires little power (enough 1-2 people) and pol filter cake can be reduced to <2%, but the sap will filter roberto cavalli acqua the resulting quality is bad and should be purified again (returned roberto cavalli acqua to the raw juice) which becomes a burden to the front. Rotary Vacuum Filter roberto cavalli acqua consists of a cylinder that rotates on its axis and the cylinder partially submerged in a tub of dirty juice to be filtered. roberto cavalli acqua The outer part of the cylinder that serves as a filter composed of segments. roberto cavalli acqua Each segment roberto cavalli acqua is individually connected to a pipeline called thrill pipe ending in a terminal called a distributing valve or timing block.
Timing of this block is a regulatory mechanism of the vacuum filter surface which consists of three different sectors, namely: One sector in direct contact with the outside roberto cavalli acqua air. One sector that has a space associated with vacuum pressure around 15-20 cmHg (Low Vacuum) One sector roberto cavalli acqua that has a space associated with vacuum pressure around 40-45 cmHg (High Vacuum).
Figure 1. Process Diagram of Rotary Vacuum Filters At the cylindrical section is in contact with the sap dirty filter roberto cavalli acqua fields associated with low vacuum. This leads to gross sap stuck in the filter surface because the vacuum sucked, while in a thin layer of filter roberto cavalli acqua cake formed sieve. The filter cake layer in addition there is sap dirty jug containing bagacillo added which serves to increase the porosity. Nira low vacuum distillate called dirty filtrate (cloudy filtrate) With the rotation of the cylinder, the field of filter that has been coated a thin filter cake will rise from the surface of the dirty sap. In this area began the formation of a solid layer of filter cake. Rotating cylinder and into the high vacuum region. This area filter cake layer through a two stage process. First Stage: Through fogging sector with a row of hot water, so that a layer of filter cake soaked in hot water. Due to the influence of the vacuum hot water will be sucked and sap is in the hot water come exploited. Subsequent washing of the area through water droplets. With this washing concentration (brix) decreased sap filter and sucked through the screen because of the vacuum. The first stage is called the Washing of Cake. Stage Two: After washing, the drying process begins. Due to the influence of the remnants of the vacuum filter cake will be sucked in water. This stage is called Drying of Cake.
4. The dried filter cake layer detained by scrapper and filter cake falls to the conveyor belt. At the time of raking filter cake by scrapper segments associated with the air filter outside so there is no vacuum.
To get the perfect performance, it must be considered important provisions that must be considered, such as: Quality and quantity of fine lees (bagacillo), the finer the better. The composition of the sap bagacillo than gross no more than 80% in order not to complicate the pumping. Vacuum on RVF primarily on the formation of optimal cake 17.5 cmHg. Round RVF put between 1/3 minutes up to 1 rev / min. The amount of water spray 3-5% sugar cane and shape splash spray system. Spray water temperature 70 0 C deadlock or damage roberto cavalli acqua the filter. roberto cavalli acqua
In addition to the condition of the equipment of rotary vacuum filters, roberto cavalli acqua which need to be considered in the processing of dirty juice (clarifier mud) is the number bagacillo (fine lees) are mixed. The size of the mixed bagacillo around roberto cavalli acqua 80-90% (<14 mesh) and less than 5% (<36 mesh), Chen, 1993. While the recommended amount bagacillo about 4-15 kg per tonne of sugarcane, (Hugot 1986). Bagacillo obtained from the pulp of finely screened end mill to obtain a homogeneous size and quantity.
Mail (will not be published) (required) roberto cavalli acqua
September 2013 (1) October 2012 (1) July 2012 (1) May 2012 (1) April 2012 (2) March 2012 (9) February 20
The final stage of the purification process in the plant sap sugar is clarification or precipitation. In this process the sap that has disulfitir (reacts with SO 2 gas) flowed into the vessel deposition (clarifier). In this deposition process resulting clear juice (clarified juice) and juice dirty (mud juice). Dirty sap is processed again to be separated roberto cavalli acqua between the solid solution, so that the resulting sap filter and filter cake. Before 1980 to separate the dirty sap sugar mill using a tool called a filter press. Disadvantages of this tool requires human labor is relatively plentiful and the quality blotongnya still contains a lot of sugar (pol filter cake> 2%). While the advantages of sap produced good quality roberto cavalli acqua filter that can be directly processed in evaporation.
Since the mid-1980s, the sugar mills to switch to a rotary vacuum filter to separate the juice filter with filter cake. By using this tool requires little power (enough 1-2 people) and pol filter cake can be reduced to <2%, but the sap will filter roberto cavalli acqua the resulting quality is bad and should be purified again (returned roberto cavalli acqua to the raw juice) which becomes a burden to the front. Rotary Vacuum Filter roberto cavalli acqua consists of a cylinder that rotates on its axis and the cylinder partially submerged in a tub of dirty juice to be filtered. roberto cavalli acqua The outer part of the cylinder that serves as a filter composed of segments. roberto cavalli acqua Each segment roberto cavalli acqua is individually connected to a pipeline called thrill pipe ending in a terminal called a distributing valve or timing block.
Timing of this block is a regulatory mechanism of the vacuum filter surface which consists of three different sectors, namely: One sector in direct contact with the outside roberto cavalli acqua air. One sector that has a space associated with vacuum pressure around 15-20 cmHg (Low Vacuum) One sector roberto cavalli acqua that has a space associated with vacuum pressure around 40-45 cmHg (High Vacuum).
Figure 1. Process Diagram of Rotary Vacuum Filters At the cylindrical section is in contact with the sap dirty filter roberto cavalli acqua fields associated with low vacuum. This leads to gross sap stuck in the filter surface because the vacuum sucked, while in a thin layer of filter roberto cavalli acqua cake formed sieve. The filter cake layer in addition there is sap dirty jug containing bagacillo added which serves to increase the porosity. Nira low vacuum distillate called dirty filtrate (cloudy filtrate) With the rotation of the cylinder, the field of filter that has been coated a thin filter cake will rise from the surface of the dirty sap. In this area began the formation of a solid layer of filter cake. Rotating cylinder and into the high vacuum region. This area filter cake layer through a two stage process. First Stage: Through fogging sector with a row of hot water, so that a layer of filter cake soaked in hot water. Due to the influence of the vacuum hot water will be sucked and sap is in the hot water come exploited. Subsequent washing of the area through water droplets. With this washing concentration (brix) decreased sap filter and sucked through the screen because of the vacuum. The first stage is called the Washing of Cake. Stage Two: After washing, the drying process begins. Due to the influence of the remnants of the vacuum filter cake will be sucked in water. This stage is called Drying of Cake.
4. The dried filter cake layer detained by scrapper and filter cake falls to the conveyor belt. At the time of raking filter cake by scrapper segments associated with the air filter outside so there is no vacuum.
To get the perfect performance, it must be considered important provisions that must be considered, such as: Quality and quantity of fine lees (bagacillo), the finer the better. The composition of the sap bagacillo than gross no more than 80% in order not to complicate the pumping. Vacuum on RVF primarily on the formation of optimal cake 17.5 cmHg. Round RVF put between 1/3 minutes up to 1 rev / min. The amount of water spray 3-5% sugar cane and shape splash spray system. Spray water temperature 70 0 C deadlock or damage roberto cavalli acqua the filter. roberto cavalli acqua
In addition to the condition of the equipment of rotary vacuum filters, roberto cavalli acqua which need to be considered in the processing of dirty juice (clarifier mud) is the number bagacillo (fine lees) are mixed. The size of the mixed bagacillo around roberto cavalli acqua 80-90% (<14 mesh) and less than 5% (<36 mesh), Chen, 1993. While the recommended amount bagacillo about 4-15 kg per tonne of sugarcane, (Hugot 1986). Bagacillo obtained from the pulp of finely screened end mill to obtain a homogeneous size and quantity.
Mail (will not be published) (required) roberto cavalli acqua
September 2013 (1) October 2012 (1) July 2012 (1) May 2012 (1) April 2012 (2) March 2012 (9) February 20
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