TH63107B - Slurry production of precipitated calcium carbonate obtained from the caesarean section. - Google Patents

Abstract

DC60 (17/05/16) slurry with precipitated calcium carbonate as obtained from the caesarean section in Pulp production It can be wet milled inexpensively and efficiently. With input In a continuous rotary grinding media type 1 grinder which includes 2 grinding vans, tubular shapes with both ends, 18 rotating agitator set inside of the 2 grinding container and which rotates the material to be crushed and the grinding medium inside the container for The crusher 2, and the separation device 13 pipe shapes are arranged inside of the grinding container 2 and which separate the material to be crushed. And grinding medium inside the grinding container 2 ------ 27/02/2018 ------ (OCR) ------------ Revised invention summary 17 / 05/2559 Serries with precipitated calcium carbonate as obtained from the caesarean section in Pulp production Can be wet grinding By inexpensive and efficient With input In a continuous rotary grinding media type 1 grinder which includes 2 grinding vans, tubular shapes with both ends, 18 rotating agitator set inside of the 2 grinding container and which rotates the material to be crushed and the grinding medium inside the container for The crusher 2, and the separation device 13 pipe shapes are arranged inside of the grinding container 2 and which separate the material to be crushed. And grinding medium inside the grinding container 2 --------------------------------------- -------------------------------------------------- ------- Serries with precipitated calcium carbonate as obtained from the caesarean section in the Pulp production process Wet granulation can be performed inexpensively and efficiently by feeding it into an intermediate-type continuous rotary granulator 1, which consists of 2 granulating vessels, tubing with both ends, rotating unit. 18 agitators arranged in a rotating interior of Grinding container 2 and which rotates the material to be ground and the grinding medium inside Grinding container 2, and separation device 13 pipe shapes arranged inside of the mill 2 and which separates the material to be ground and the grinding media inside the mill 2.

Claims (6)

Disclaimer (all) which will not appear on the advertisement page. : ------ 27/02/2018 ------ (OCR) ------------ Edit 17/05/2016 1. How to produce slurry to get. To obtain the coating color by grinding calcium carbonate that was made The wet precipitate as obtained from the caesarean section in the pulp production process. The method includes a process of obtaining a coarse sieve with an average particle size of 1-10 μm using the aforementioned calcium carbonate dispersant, and delivery at Coarse to rotary grinder, stirring medium for wet grinding action With a grinding medium that The loading percentage of grinding media is between 70 and 90%, where the centrifuge is included. A container for grinding the tubular shape at its opposite end is closed; The tube shape separator is provided inside of the grinding container in an efficient orientation. Significance with that along the long axis The interior of the pipe separator is radially divided into two chambers, which act as the inner chamber and the outer chamber. And a number of long slots to be at least arranged The outermost part of the device separates the outer surface to create a connection between the two chambers; The stirrer is set to rotate inside of the inner chamber in a significant orientation to Container for grinding along the long axis And which is a double rotor type with an axial length (L) ratio of length to diameter (D) greater than 0.6 but not greater than 1.2; And the feed slot where the material to be crushed is fed through the inner chamber 2. Method according to claim 1 where calcium carbonate before the rough slurry process has The average particle size is 10-30 μm. 3. Method of claim 1 or 2 where calcium carbonate was precipitated prior to treatment. Feed into the pulverizer, stirring medium. The amount is at least 50% by weight on the basis of the total weight of the pigment. 4. Method of claim 1-3. Where calcium carbonate is treated Precipitated precipitates having a calcite crystal structure. 5. Method of claim 1-4. Where the L / D ratio is greater than 0.8 but not greater than 1.0 -------------------------------------- -------------------------------------------------- ------------------------------- 1. Slurry manufacturing method for obtaining coating agent by finely grinding calcium carbonate. The wet precipitated type, as obtained from the caesarean section in the pulp manufacturing process, is characterized as Serye with precipitated calcium carbonate as was prepared in the neck procedure. Stickerxing of pulp processing It is sent to grind in a medium agitator grinding machine. Which includes: a tubular-shaped mill with both ends; The tube shape separator is arranged inside of the granulator in an efficient alignment. Significance to that container along the long axis The interior of the pipe separator is radially divided into two chambers, serving as the inner chamber and the outer chamber. And a large number of long slots that are neatly arranged The least part of the surface along the periphery of the separation device to create a connection between the two chambers; The rotating stirrer set in the interior of the inner chamber significantly aligned with the The container along the long axis of the grinding container And which is a double rotor type with an axial length (L) ratio of length to diameter (D) greater than 0.6 but not greater than 1.2; And there is a feed slot where the material to be finely grinded is fed through the inner chamber. 2. Production method according to claim 1, where precipitated calcium carbonate is the colorant. It was prepared in the costic curing process of the pulp production process before being fed into the machine. Fine grinding, rotary-stirring medium Contains at least 50% by weight on a weight basis. All of the pigments 3. Slurry production method according to claim 1 or 2, where precipitated calcium carbonate As it was prepared in the cosmic syringe process of the pulp A lump with a calcite crystal structure 4. Slurry production method according to claim 1, where L / D ratio is greater than 0.8 but not greater than 1.0. 5. Paper, which has a slory-coated finish, produced using Claim 1 or 2. 6. Method for producing sery for obtaining coating agent by finely grinding calcium carbonate type. The wet coagulant, as obtained by the cosmic syringe process, is characterized as Serye with precipitated calcium carbonate, as was prepared in the process. Costic acid of the pulp production process It is delivered to a fine grinding medium in a centrifugal rotary type granulator. Included Pipe-shaped crusher with Its opposite ends are closed, a tube-shaped separator arranged inside of the grinding vessel. In order to align significantly with the same axis with the granulator, So that the inner cavity of The mill was split into two chambers, arranged in a radial direction, the inner chamber and the outer chamber, and was arranged with a large number of long chambers that connect the inner and outer chambers. By at least part of the peripheral surface of this device, the stirrer is provided. The rotation of the inner chamber in the same alignment significantly with the The granulator, and the port for delivering the processed material into the chambers, is being built into a twin-rotor type. It consists of 2 rotors and has an axial length (L) to diameter (D) ratio of more than 0.6 but not greater than 1.2.