CN218711804U - Papermaking filler pretreatment system - Google Patents
Papermaking filler pretreatment system Download PDFInfo
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- CN218711804U CN218711804U CN202222574276.3U CN202222574276U CN218711804U CN 218711804 U CN218711804 U CN 218711804U CN 202222574276 U CN202222574276 U CN 202222574276U CN 218711804 U CN218711804 U CN 218711804U
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Abstract
The utility model discloses a papermaking filler pretreatment system, which comprises a wrapping agent production device and a filler wrapping device, wherein the wrapping agent production device comprises a reaction tank, the input end of the reaction tank is connected with a starch conveying system, and the reaction tank is externally connected with a water heating device; the filler wrapping device comprises an emulsification pump, and the input end of the emulsification pump is connected with the filler diluting device and the output end of the reaction tank; the pretreatment system optimizes the starch heating process, so that the starch heating process is uniformly heated, gelatinization is prevented, in addition, the production cost is reduced, the clear water consumption is reduced, and the surface smoothness and the neatness of the finished paper are improved.
Description
Technical Field
The utility model belongs to the papermaking device especially relates to a papermaking filler pretreatment systems.
Background
The technology of wrapping the filler by the high-substitution-degree cationic starch is widely applied to the field of papermaking, and a large number of hydroxyl groups on the surface of the filler can form good hydrogen bond combination with fibers, so that the retention rate of the filler is improved, and the problem of waste water and waste residues in the papermaking process is reduced. However, the pretreatment equipment for packing the filler by using the high-substitution-degree cationic starch adopted in the industry at present has a plurality of problems, the starch heating process usually adopts steam heating, which easily causes uneven heating and starch gelatinization, and in addition, the starch dilution process is not easy to control, and the packing effect is not controllable.
Disclosure of Invention
Utility model purpose: an object of the utility model is to provide a papermaking filler pretreatment systems for cationic starch filler parcel.
The technical scheme is as follows: papermaking filler pretreatment systems, including wrappage agent apparatus for producing and filler parcel device, its characterized in that, wrappage agent apparatus for producing includes the reaction tank, the defeated material system of starch is connected to the reaction tank input, the reaction tank is equipped with water heating device.
Preferably, the hydrothermal device comprises a hot water circulating system and a material circulating system, wherein the hot water circulating system comprises a hot water tank, and the hot water tank is sequentially connected with a heat exchanger and a circulating water pump; the material circulating system comprises a reaction tank, the reaction tank is sequentially connected with a starch pump, a heat exchanger and a thermometer, hot water reversely flows relative to the material and exchanges heat in the heat exchanger, the heat exchange area is increased, and the heat transfer efficiency is improved.
Preferably, the starch conveying system comprises a starch bin, the starch bin is connected with a dispersion tank through a screw pump, and a stirrer is arranged in the dispersion tank to avoid precipitation.
Preferably, the filler wrapping pretreatment device comprises an emulsification pump, and the input end of the emulsification pump is connected with the filler diluting device and the output end of the reaction tank.
Preferably, the filler diluting device includes the clean water valve, the flowmeter of filler pipeline is connected through the FC switch to clean water valve one end, the flowmeter is connected to the other end of clean water valve, and the clear water pipeline is connected the blender with filler pipeline jointly.
The working principle is as follows: the etherifying agent and the alkali are mixed by a static mixer and input into a reaction tank, the starch in a starch bin is fed into a dispersion tank through a screw pump, a stirring rod in the dispersion tank disperses the starch, the starch is input into the reaction tank through the screw pump, the etherifying agent, the alkali and the starch react in the reaction tank, a water heating device heats substances in the reaction tank in the process, the temperature of the substances in the reaction tank is maintained at 40-44 ℃, and the starch is pretreated to obtain the high-substituted cationic starch.
In the process of wrapping the filler by adopting the high-substitution cationic starch, the filler is diluted by clear water, the diluted filler and the high-substitution cationic starch are conveyed to a filler emulsification pump to obtain the filler wrapped by the high-substitution cationic starch, and then the product is conveyed to a filler adding point.
Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: 1. the automatic control of the starch heating process is realized; 2. hot water in the hot water tank is recycled, so that equipment investment and energy consumption are reduced; 3. the problems of uneven heating and partial gelatinization of starch caused by traditional straight-through steam heating are avoided; 4. the clear water consumption is reduced, and the wastewater discharge amount and the sludge production amount are indirectly reduced.
Drawings
FIG. 1 is a schematic view of a pretreatment apparatus of the present invention;
fig. 2 is a schematic view of the device for filler dilution process of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the wrapping agent pretreatment device of the present invention comprises a static mixer 3, wherein an input end of the static mixer 3 is connected with a drug tank, the drug tank comprises an alkali tank and an etherifying agent tank, the alkali tank and the etherifying agent tank are provided with level meters, output ends of the alkali tank and the etherifying agent tank are respectively connected with a screw pump 1 and a flowmeter 2 in sequence, an output end of the static mixer is connected with a reaction tank 4, an input end of the reaction tank is connected with a starch conveying system, the starch conveying system comprises a starch bin 5, a lower end of the starch bin 5 is connected with a first screw pump, a lower end of the first screw pump is connected with a dispersion tank 6, and the dispersion tank conveys starch to the reaction tank 4 through a second screw pump 7; the reaction tank 4 is provided with a circulating water heating device, the water heating device comprises a hot water circulating system and a material circulating system, the hot water circulating system comprises a hot water tank 41, and the hot water tank is sequentially connected with a heat exchanger 43 and a circulating water pump 42; the material circulating system comprises a reaction tank, the reaction tank is sequentially connected with a starch pump 45, a heat exchanger 43 and a thermometer 44, and hot water reversely flows relative to the material and exchanges heat in the heat exchanger.
The filler wrapping device comprises an emulsifying pump 9, and the input end of the emulsifying pump 9 is connected with the filler diluting device and the output end of the reaction tank. The filler diluting device comprises a clean water valve 81, one end of the clean water valve 81 is connected with a first flowmeter 82 of a filler conveying pipeline through an FC switch, the other end of the clean water valve is connected with a second flowmeter 83, and a clean water pipeline and the filler conveying pipeline are connected with a mixer 84 together.
The implementation method of the papermaking filler pretreatment adopts the equipment, and the specific treatment method comprises the following steps:
step a, preparing high-substituted cationic starch, namely inputting 5-12% of alkali solid content and 80-120kg/t (starch) of etherifying agent into a first static mixer, mixing and inputting into a reaction tank, inputting the starch into the reaction tank through a starch conveying system, wherein the temperature of a hot water tank is 50-70 ℃, the temperature of starch in the reaction tank is 40-44 ℃, and reacting to obtain the high-substituted cationic starch.
And b, diluting the filler, namely feeding the filler into a mixer through a starch pump, starting an FC switch through a flowmeter in the process, opening a clean water valve, inputting clean water into the mixer, and diluting in a second static mixer, wherein the dilution concentration of the filler is 30-40%.
And c, packing, inputting the diluted packing into an emulsification pump, pumping the high-substitution cationic starch obtained in the reaction tank into the emulsification pump, continuously mixing the diluted packing and the high-substitution cationic starch in the emulsification pump, and packing the packing with the cationic starch.
Claims (5)
1. The papermaking filler pretreatment system comprises a wrapping agent production device and a filler wrapping device, and is characterized in that the wrapping agent production device comprises a reaction tank (4), the input end of the reaction tank (4) is connected with a starch conveying system, and the reaction tank is externally connected with a hydrothermal device.
2. The papermaking filler pretreatment system according to claim 1, characterized in that the hydrothermal device comprises a hot water circulation system and a material circulation system, the hot water circulation system comprises a hot water tank (41), and the hot water tank is sequentially connected with a heat exchanger (43) and a circulating water pump (42); the material circulating system comprises a reaction tank, the reaction tank is sequentially connected with a starch pump (45), a heat exchanger (43) and a thermometer (44), and hot water reversely flows relative to the materials and exchanges heat in the heat exchanger.
3. Papermaking filler pretreatment system according to claim 1, characterized in that the starch delivery system comprises a starch silo (5) connected to a dispersion tank (6) by means of a screw pump, wherein an agitator is provided in the dispersion tank.
4. Papermaking filler pretreatment system according to claim 1, characterized in that the filler wrapping device comprises an emulsification pump (9) having an input connected to a filler dilution device (8) and to a reaction tank output.
5. The papermaking filler pretreatment system according to claim 4, characterized in that the filler dilution device comprises a clean water valve (81), one end of the clean water valve is connected with a flow meter (82) of the filler conveying pipeline through an FC switch, the other end of the clean water valve is connected with a flow meter (83), and a clean water pipeline and the filler conveying pipeline are jointly connected with a mixer (84).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574276.3U CN218711804U (en) | 2022-09-28 | 2022-09-28 | Papermaking filler pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574276.3U CN218711804U (en) | 2022-09-28 | 2022-09-28 | Papermaking filler pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218711804U true CN218711804U (en) | 2023-03-24 |
Family
ID=85638568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222574276.3U Active CN218711804U (en) | 2022-09-28 | 2022-09-28 | Papermaking filler pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218711804U (en) |
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2022
- 2022-09-28 CN CN202222574276.3U patent/CN218711804U/en active Active
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