CN103438678A - Efficient energy-saving pulp dewatering and drying equipment - Google Patents
Efficient energy-saving pulp dewatering and drying equipment Download PDFInfo
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- CN103438678A CN103438678A CN2013103685025A CN201310368502A CN103438678A CN 103438678 A CN103438678 A CN 103438678A CN 2013103685025 A CN2013103685025 A CN 2013103685025A CN 201310368502 A CN201310368502 A CN 201310368502A CN 103438678 A CN103438678 A CN 103438678A
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- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 6
- 229920001131 Pulp (paper) Polymers 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 24
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The invention discloses efficient energy-saving pulp dewatering and drying equipment which mainly comprises a double-roller pulp squeezing machine with a hot rolling structure, a two-segment drying chamber, a microwave generator, a heat conductive oil boiler, an air preheater, a heat exchanger and the like. The double-roller pulp squeezing machine with the hot rolling structure is characterized in that waste heat of exhaust gas of a system can be used for carrying out thermal conduction on a pulp plate so that pulp drying conditions can be optimized; the two-segment drying chamber carries out constant-speed drying and decelerating drying on pulp respectively; the microwave generator is arranged and works on a position close to a turning point from the constant-speed dewatering stage to the decelerating dewatering stage of the pulp, and is used for improving the drying speed of a pulp decelerating drying segment and reducing energy consumption; the air preheater is used for recycling the waste heat of flue gas exhausted by the thermal conductive oil boiler and preheating fresh air supplemented to the system. The efficient energy-saving pulp dewatering and drying equipment has the advantages of being simple, high in drying speed, high in energy utilization rate, wide in application range and the like.
Description
Technical field
The invention belongs to the industrially drying technical field, simultaneously also can be applied to other industrially drying field, is a kind of Processes and apparatus designed for the drying of paper pulp, particularly relates to a kind of energy-efficient dewatering of pulp drying equipment.
Background technology
The annual import of China a large amount of paper pulp, paper pulp is carried out to drying and can make paper pulp be convenient to preserve and transportation.At present, the technology that pulp dryer is commonly used mainly contains pneumatic conveying drying and heated-air drying (being flash drying).
The main flow process of pneumatic conveying drying is: mass dryness fraction is approximately 3% paper pulp through after the extruding of press master, and mass dryness fraction reaches 50% left and right; Shove pulpboard later is admitted in fluffer to be broken up, and it is cotton-shaped that the paper pulp after breaing up is the group of several millimeters of diameters; Paper pulp group's wadding is admitted to vertical drying tower bottom, in tower, by hot blast, is blown from the bottom up, and when arriving certain mass dryness fraction, paper pulp is discharged drying tower with hot blast, enters in cyclone separator.Paper pulp group's wadding is admitted to the next stage drying tower and again carries out drying, until reach desired mass dryness fraction after being separated by cyclone separator.The thermal efficiency ratio of pneumatic conveying drying is higher, and rate of drying is also very fast, but its equipment is more complicated, installs and keeps in repair more difficult; And operation needs to consume a large amount of mechanical powers.
Heated-air drying is to adopt at present the most a kind of drying mode, is mainly to add hot-air by heat exchanger, takes away the moisture content of paper pulp with hot-air.It has the advantages such as treating capacity is large, cost is low, easily be automated, but also has the shortcomings such as energy consumption is large, product quality is poor simultaneously.
Microwave drying is the body heating that material is caused by dielectric loss at elect magnetic field, in dry run, the moisture content of wet stock inside often specific surface is high, cause the material internal moisture absorb in a large number microwave energy and be converted into heat energy, so the temperature specific surface of material inside is high.Simultaneously, because material inside is heated to heat up, water is vaporized rapidly, produce steam, formed barometric gradient; At this moment wet stock thermograde is consistent with barometric gradient with the dispersal direction of water, and this has just improved the transition condition of moisture in the dry run widely, thereby has effectively improved the diffusion rate of moisture, has accelerated rate of drying.Simultaneously, existence due to barometric gradient, make microwave drying there are dry characteristics from inside to outside: to material generally speaking, at first the material internal layer is dried, thereby overcome in heat-wind circulate drying and form skin-core structure because at first the material skin is dried, hinder the material internal moisture and continue the shortcoming to external migration, greatly improved the transition condition of moisture in the dry run, thereby improved the diffusion rate of moisture, accelerated rate of drying.
Microwave drying has the advantages such as firing rate is fast, capacity usage ratio is high, occupation area of equipment is little, and its major defect is the poor and wayward product quality of the later stage of drying of heating uniformity, and production capacity is limited, the maintenance of equipment high in cost of production.
Research finds, the dewatering of pulp dry run has two stages: at the uniform velocity drying stage and decreasing drying rate period.At drying stage at the uniform velocity, rate of drying and material self moisture content does not have great relation, improves flow velocity and the temperature of outer gas stream, and reducing ambient air outside humidity is to improve the at the uniform velocity key of drying stage rate of drying; And, at decreasing drying rate period, Quick high object internal temperature is to improve the effective way of rate of drying.
Comprehensive heated-air drying and microwave drying pluses and minuses separately, in conjunction with the dewatering of pulp Track character, consideration is coupled and uses microwave drying in hot-air drying process: when heated-air drying arrives critical moisture content point, introduce microwave drying with Quick high object internal temperature, reach the purpose that improves rate of drying.
As shown in Figure 1.The at the uniform velocity drying stage of dewatering of pulp adopts heated-air drying, when drying proceeds at the uniform velocity with the deceleration Near The Critical Point, drop into microwave drying, utilize microwave to carry out the particularly characteristics of inner heating of whole heating to material, make the paper pulp internal moisture can evaporate rapidly discharge, so just be conducive to shorten drying time, improve drying efficiency.
Summary of the invention
The object of the present invention is to provide the energy-efficient dewatering of pulp drying equipment that a kind of capacity usage ratio is high, production efficiency is high.
For achieving the above object, technical solution of the present invention is:
The present invention is a kind of energy-efficient dewatering of pulp drying equipment, and it comprises frame, paper pulp cutting mechanism, heat exchanger, air preheater, microwave generator, Var-nip press, hot air circulation pipeline, material transport system, hothouse, heat conducting oil boiler; Var-nip press, hothouse, heat exchanger, paper pulp cutting mechanism are installed successively from left to right on frame, heat conducting oil boiler is arranged on the upper of frame and is positioned at the below of hothouse, microwave generator is arranged on the upper of frame and is positioned at the top of hothouse, wherein, Var-nip press is positioned at the starting end of hothouse and docks with the material transport system of hothouse; The paper pulp cutting mechanism is positioned at the end of hothouse, and the paper pulp cutting mechanism docks with the material transport system in hothouse by the hot air circulation pipeline, and described heat exchanger is connected with heat conducting oil boiler, hothouse, air preheater respectively.
Described hothouse is divided into two sections, and it consists of the first hothouse and secondary drying chamber; The first hothouse and secondary drying chamber are connected and are arranged on the middle part of frame mutually, and Two stage dryer separates with dividing plate between chamber, between the first hothouse and secondary drying chamber, by the hot air circulation pipeline, are communicated with; Be separately installed with material transport system in the first hothouse and secondary drying chamber.
Described microwave generator is arranged between the first hothouse and secondary drying chamber and is positioned at the top of hothouse, and the microwave action that microwave generator produces is in the end of the first hothouse and the initiating terminal of secondary drying chamber.
Described heat exchanger is air-heat-condutive oil heat exchanger, and the body of heat exchanger is provided with conduction oil entrance and exit, hot-wind inlet and hot-blast outlet; Described conduction oil entrance is connected with heat conducting oil boiler, and conduction oil is from heat conducting oil boiler; Hot-blast outlet leads to hothouse by the hot air circulation pipeline, and hot-wind inlet is connected with air preheater, utilizes the high-temperature flue gas of boiler to carry out preheating to improve energy utilization rate to fresh air.
Described Var-nip press comprises hopper, roll-in case, the first conveyer belt, roll-in cylinder, the second conveyer belt, hot-rolling pressure pipe, it is relative with the first conveyer belt in being arranged on the roll-in case that described hopper is arranged on the outlet of the porch of roll-in case and hopper, two symmetries are arranged in the roll-in case, the input of the output of the first conveyer belt and the second conveyer belt is connected respectively at two roll-in cylinder inputs and output, the input of the hot-rolling pressure pipe that the output of the second conveyer belt is arranged symmetrically with some rows is connected, this hot-rolling pressure pipe is the hollow roller, the roller internal placement has the fin of strengthening convection heat transfer' heat-transfer by convection, roller one end is connected with the hothouse hot-wind inlet by the hot air circulation pipeline, the other end is hot-blast outlet.
Described air preheater is comprised of housing and center rotor, and in the rotatable housing mounted externally of center rotor, housing plays the effect of outside seal and gas flow guiding, and center rotor plays the effect of heat exchanger.
After adopting such scheme, the present invention has following advantage:
1, the present invention given full play to that heated-air drying and microwave drying had separately advantage, coupling utilizes heating using microwave and Hot-blast Heating technology to carry out drying to paper pulp, with the high efficiency of microwave drying, makes up the deficiency that heated-air drying efficiency is lower; Advantage low with the heated-air drying cost, that output is large makes up the deficiency that microwave drying can't be produced in enormous quantities simultaneously.
2, the present invention's waste heat of recycling system as far as possible, realize the efficient utilization of system capacity: the one, utilize air preheater to be reclaimed the fume afterheat of heat conducting oil boiler discharge; The 2nd, innovative design utilize the hot-rolling press mechanism of humid air waste heat, efflux by the hot-rolling recycling system complementary energy that Hot wet air heating has, for promoting the pulp board initial temperature; The 3rd, allow heat-containing waste gas recycle by a certain percentage.Therefore, whole drying plant has higher energy utilization efficiency.
3, the present invention adopts semi-automatic control, and the running parameters such as different transfer rates, hot blast temperature and hot blast air quantity can be set according to different types of paper pulp, to improve device production efficiency and energy utilization rate.
In sum, advantage of the present invention is that device structure is simple, applicable object is extensive, and capacity usage ratio is high, production efficiency is high, can substitute well existing paper pulp pneumatic conveying drying technology, for enterprise brings the energy-saving and emission-reduction benefit.If this case equipment is carried out to certain transformation, even also the present invention can be applied in the dehydrating of other industrial and agricultural products and go.Therefore, the present invention not only has the characteristics of efficient energy-saving, and has a wide range of applications and expand space.
Below in conjunction with accompanying drawing, with concrete enforcement example, the present invention is further illustrated.
The accompanying drawing explanation
Fig. 1 is coupling microwave drying principle schematic in hot-air drying process;
Fig. 2 is structured flowchart of the present invention;
Fig. 3 A is front section view of the present invention;
Fig. 3 B is top view of the present invention;
Fig. 4 A is the axonometric drawing of heat exchanger of the present invention;
Fig. 4 B is the front view of heat exchanger of the present invention;
Fig. 4 C is the top view of heat exchanger of the present invention;
Fig. 5 is the precedence diagram of hot air flow of the present invention through each equipment;
Fig. 6 is the structural representation of Var-nip press of the present invention inside;
Fig. 7 A, Fig. 7 B are axonometric drawing and the three-view diagrams of air preheater of the present invention.
Specific embodiments
As shown in Fig. 2, Fig. 3 A, Fig. 3 B, the present invention is a kind of energy-efficient dewatering of pulp drying equipment, it mainly by frame 1, paper pulp cutting mechanism 2, heat exchanger 3, air preheater 4, microwave generator 5, Var-nip press 6, hot air circulation pipeline 71,72,73, material transport system 81,82, hothouse 9, heat conducting oil boiler 10, etc. form.
Described hothouse 9 is divided into two sections, and it consists of the first hothouse 91 and secondary drying chamber 92.The first hothouse 91 and secondary drying chamber 92 are connected and are arranged on the middle part of frame 1 mutually, and Two stage dryer separates with dividing plate between chamber, between the first hothouse 91 and secondary drying chamber 92, by hot air circulation pipeline 73, are communicated with.Be separately installed with material transport system 81,82 in the first hothouse 91 and secondary drying chamber 92, the outer wrap insulation material of hothouse 9 is to reduce radiation loss.Paper pulp carries out at the uniform velocity dry in the first hothouse 91, carries out falling rate of drying in secondary drying chamber 92.
Var-nip press 6, hothouse 9, heat exchanger 3, paper pulp cutting mechanism 2 are installed successively from left to right on frame 1, heat conducting oil boiler 10 is arranged on the upper of frame and is positioned at the below of hothouse 9, wherein, Var-nip press 6 is positioned at the starting end of the first hothouse 91 and docks with the material transport system 81 of the first hothouse 91; Paper pulp cutting mechanism 2 is positioned at the end of secondary drying chamber 92, i.e. discharging opening place, and paper pulp cutting mechanism 2 docks with the material transport system 82 in secondary drying chamber 92.Described paper pulp cutting mechanism 2 is controlled by certain time interval cutting cardboard by computer, makes the cardboard size facilitate packing and binding.Paperboard cutting mechanism 2 is provided with the microwave short-circuiting means that prevents microwave leakage, to prevent microwave leakage, the workman is produced to injury.
Described microwave generator 5 is arranged on frame 1, between the first hothouse 91 and secondary drying chamber 92 and hothouse 9 above, the microwave action that microwave generator 5 produces is in the end of the first hothouse 91 and the initiating terminal of secondary drying chamber 92.Microwave generator 5 is interior altogether containing the identical magnetron of several power, and the microwave action that the some of them magnetron produces is in the initiating terminal of the first hothouse 91, and the microwave action that the other magnetron produces is 92 end in secondary drying chamber.In real work, number and the position that can decide according to concrete running parameter magnetron to open; And adapt to different Production requirements by size and the active position of regulating microwave action power.Described microwave generator 5 works near the critical moisture content point of paper pulp, and its effect is to devote oneself to work to improve rapidly the temperature of pulpboard internal moisture in the starting stage of falling rate of drying, thereby improves the rate of drying of decreasing drying rate period.
Described material transport system 81 mainly is comprised of drive unit 811, conveyer belt 812, running roller 813 etc., conveyer belt 812 solderless wrapped connections are on running roller 813, drive unit 811 provides power for conveyer belt 812 for the conveyer belt 812 in hothouse 9, can be by its transfer rate of computer control according to need of production.
As Fig. 4 A, Fig. 4 B, Fig. 4 C, with reference to as shown in figure 3A, described heat exchanger 3 is air-heat-condutive oil heat exchanger.The body of heat exchanger 3 is provided with conduction oil entrance 31 and conduction oil outlet 32, hot-wind inlet 33 and hot-blast outlet 34.Described conduction oil entrance 31 is connected with heat conducting oil boiler 10, and conduction oil is from heat conducting oil boiler 10; Hot-blast outlet 34 leads to the first hothouse 91 by hot air circulation pipeline 71.Hot-wind inlet 33 is connected with air preheater 4, utilizes the high-temperature flue gas of boiler to carry out preheating to improve energy utilization rate to fresh air.
As shown in Figure 6, described Var-nip press 6 comprises hopper 61, roll-in case 62, the first conveyer belt 63, roll-in cylinder 64, the second conveyer belt 65, hot-rolling pressure pipe 66.It is relative with the first conveyer belt 63 in being arranged on roll-in case 62 that described hopper 61 is arranged on the outlet of the porch of roll-in case 62 and hopper 61, two symmetries are arranged in roll-in case 62, the input of the output of the first conveyer belt 63 and the second conveyer belt 65 is connected respectively at two roll-in cylinder 64 inputs and output, the input of the hot-rolling pressure pipe 66 that the output of the second conveyer belt 65 is arranged symmetrically with some rows is connected, this hot-rolling pressure pipe 66 is hollow roller 66, and roller 66 internal placement have the fin of strengthening convection heat transfer' heat-transfer by convection.Roller 66 1 ends are connected with the first hothouse 91 hot-wind inlets by hot air circulation pipeline 72, and the other end is hot-blast outlet.Hot blast is introduced by secondary drying chamber's 92 exhaust outlets; Hot blast after heat exchange is discharged by the other end of roller 66, enters again heat exchanger 3 heating after the hot blast after discharge has part and fresh air mixes by a certain percentage, then puts in next dry cycle process.Described Var-nip press 6 is used for wet pulp (mass dryness fraction is about 3%) is carried out to roll-in, makes the part moisture in paper pulp be removed, and after roll-in, the mass dryness fraction of paper pulp is greatly about 50% left and right.Different from press master commonly used in existing industry is, the press master of this equipment has increased the hot-rolling press mechanism mainly consisted of hot-rolling pressure pipe 66, and to utilize the heat energy of dry rear moist hot blast, this hot-rolling press mechanism carries out transmission of heat by contact to pulp board, its temperature is raise, facilitate the heat drying in later stage.
As shown in Figure 7 A, 7 B, described air preheater 4 is a kind of rotary regenerative air preheater, it is comprised of housing 41, center rotor 42, support 43, in the rotatable housing 41 mounted externally of center rotor 42, housing 41 plays the effect of outside seal and gas flow guiding, and center rotor 42 plays the effect of heat exchanger.Correspondence position in center rotor 42 top and bottom marks off respectively flue gas Circulation Area, circulation of air district and seal area, and external shell 41 forms wind storehouse, Secondary Air storehouse and a flue gas storehouse in regional certain limit at these.Wherein once with the Secondary Air storehouse, form the cold wind side, the flue gas storehouse forms the hot blast side.Each warehouse upper and lower side forms gas communication air channel separately by external shell and airduct respectively.
As shown in Figure 5, be the precedence diagram of hot air flow through each equipment.Fresh air is with after the moist hot-air of certain proportion (amount) mixes, enter air preheater 4 preheatings, air after preheating enters heating in air-heat-condutive oil heat exchanger 3, from heat exchanger 3, hot-air (wind) out is divided into two strands, and one directly enters in the first hothouse paper pulp is carried out to falling rate of drying; Another strand with enter secondary drying chamber after the hot blast of discharging mixes from the first hothouse, paper pulp is carried out at the uniform velocity dry; Two strands of hot-airs come together in pipeline 10 places.
As shown in Fig. 3 A, Fig. 3 B, hot air circulating system of the present invention is comprised of air blast, ajutage, air-introduced machine, hot air circulation pipeline 71,72,73 and valve etc.Described air blast is for carrying fresh air to air preheater 4; The air of described blower-use after in hothouse, providing heating; Described hot air circulation pipeline 71,72,73 and valve are for the conveying of hot blast and the control of air quantity; Described air-introduced machine is for getting rid of the humid air that the drying system water capacity is higher.
Described control system adopts semi-automatic operation, sets manually, and controls the normal operation of complete equipment: the operation of the small-sized heat conducting oil boiler of major control; Control microwave radiation and the radiated time of microwave generation system; Control hot blast temperature, the hot blast wind speed of hot air circulating system; The parameters such as the mass transport direction of control material transport system and speed.
Operation principle of the present invention:
As shown in Fig. 3 A, Fig. 3 B, wet rare paper pulp is after through Var-nip press, 6 extruding are the pulpboard shape, enter in the hot-rolling pressure device mainly formed by hot-rolling pressure pipe 66, by the hot-rolling pressure device, pulpboard is carried out to transmission of heat by contact, the contained waste heat of humid air that the heat energy of hot-rolling pressure device is discharged from system.Pulp board after being heated is admitted in secondary drying chamber 92, by hot blast, it is carried out at the uniform velocity drying on conveyer belt, until paper pulp reaches its critical moisture content point.At paper pulp, at the uniform velocity drying closes to an end, falling rate of drying is while being about to start, the microwave drying of microwave generator 5 is coupled in hothouse 9, utilizes microwave to be heated the moisture of paper pulp inside, make the moisture evaporation of paper pulp inside, thereby greatly promote rate of drying, reduce the intensification power consumption of paper pulp.In the first hothouse 91, temperature is higher, and the hot blast that mass dryness fraction is larger carries out falling rate of drying to paper pulp, makes the mass dryness fraction of paper pulp finally reach production requirement.Finally, in the exit of hothouse 9, by 2 pairs of pulpboards of paper pulp cutting mechanism, cut, make the appearance and size of dry pulp plate of output all consistent.
The above, be only the better case study on implementation of the present invention, the layout of each pipeline can have various ways, therefore can not limit scope of the invention process with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (6)
1. an energy-efficient dewatering of pulp drying equipment, it is characterized in that: it comprises frame, paper pulp cutting mechanism, heat exchanger, air preheater, microwave generator, Var-nip press, hot air circulation pipeline, material transport system, hothouse, heat conducting oil boiler; Var-nip press, hothouse, heat exchanger, paper pulp cutting mechanism are installed successively from left to right on frame, heat conducting oil boiler is arranged on the upper of frame and is positioned at the below of hothouse, microwave generator is arranged on the upper of frame and is positioned at the top of hothouse, wherein, Var-nip press is positioned at the starting end of hothouse and docks with the material transport system of hothouse; The paper pulp cutting mechanism is positioned at the end of hothouse, and the paper pulp cutting mechanism docks with the material transport system in hothouse by the hot air circulation pipeline, and described heat exchanger is connected with heat conducting oil boiler, hothouse, air preheater respectively.
2. energy-efficient dewatering of pulp drying equipment according to claim 1, it is characterized in that: described hothouse is divided into two sections, and it consists of the first hothouse and secondary drying chamber; The first hothouse and secondary drying chamber are connected and are arranged on the middle part of frame mutually, and Two stage dryer separates with dividing plate between chamber, between the first hothouse and secondary drying chamber, by the hot air circulation pipeline, are communicated with; Be separately installed with material transport system in the first hothouse and secondary drying chamber.
3. energy-efficient dewatering of pulp drying equipment according to claim 2, it is characterized in that: described microwave generator is arranged between the first hothouse and secondary drying chamber and is positioned at the top of hothouse, and the microwave action that microwave generator produces is in the end of the first hothouse and the initiating terminal of secondary drying chamber.
4. energy-efficient dewatering of pulp drying equipment according to claim 1, it is characterized in that: described heat exchanger is air-heat-condutive oil heat exchanger, and the body of heat exchanger is provided with conduction oil entrance and exit, hot-wind inlet and hot-blast outlet; Described conduction oil entrance is connected with heat conducting oil boiler, and conduction oil is from heat conducting oil boiler; Hot-blast outlet leads to hothouse by the hot air circulation pipeline, and hot-wind inlet is connected with air preheater, utilizes the high-temperature flue gas of boiler to carry out preheating to improve energy utilization rate to fresh air.
5. energy-efficient dewatering of pulp drying equipment according to claim 1, it is characterized in that: described Var-nip press comprises hopper, roll-in case, the first conveyer belt, roll-in cylinder, the second conveyer belt, hot-rolling pressure pipe, it is relative with the first conveyer belt in being arranged on the roll-in case that described hopper is arranged on the outlet of the porch of roll-in case and hopper, two symmetries are arranged in the roll-in case, the input of the output of the first conveyer belt and the second conveyer belt is connected respectively at two roll-in cylinder inputs and output, the input of the hot-rolling pressure pipe that the output of the second conveyer belt is arranged symmetrically with some rows is connected, this hot-rolling pressure pipe is the hollow roller, the roller internal placement has the fin of strengthening convection heat transfer' heat-transfer by convection, roller one end is connected with the hothouse hot-wind inlet by the hot air circulation pipeline, the other end is hot-blast outlet.
6. energy-efficient dewatering of pulp drying equipment according to claim 1, it is characterized in that: described air preheater is comprised of housing and center rotor, in the rotatable housing mounted externally of center rotor, housing plays the effect of outside seal and gas flow guiding, and center rotor plays the effect of heat exchanger.
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| CN201310368502.5A CN103438678B (en) | 2013-08-22 | 2013-08-22 | Efficient energy-saving pulp dewatering and drying equipment |
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| CN201310368502.5A CN103438678B (en) | 2013-08-22 | 2013-08-22 | Efficient energy-saving pulp dewatering and drying equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403315A (en) * | 2016-11-30 | 2017-02-15 | 丁雪枫 | Multi-energy energy saving drying system |
| CN109231769A (en) * | 2018-10-30 | 2019-01-18 | 饶宾期 | Mechanism filter-pressing microwave coupling dehydration and drying integrated apparatus |
| CN109738325A (en) * | 2019-01-23 | 2019-05-10 | 西安理工大学 | A kind of laboratory apparatus of test ink printing rate of drying |
| CN114812100A (en) * | 2021-01-27 | 2022-07-29 | 永虹先进材料股份有限公司 | Mineral dewatering equipment and process |
| CN116876250A (en) * | 2023-07-07 | 2023-10-13 | 浙江金龙再生资源科技股份有限公司 | Device and process for producing exposed-bottom-ash-free paperboard with increased bulk |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5064979A (en) * | 1990-08-07 | 1991-11-12 | W. R. Grace & Co.-Conn. | Microwave air float bar for drying a traveling web |
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| CN102371237A (en) * | 2010-08-17 | 2012-03-14 | 陈伟民 | Method and device for fast drying paper cylinder |
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| US5064979A (en) * | 1990-08-07 | 1991-11-12 | W. R. Grace & Co.-Conn. | Microwave air float bar for drying a traveling web |
| CN1281075A (en) * | 1999-07-02 | 2001-01-24 | 永固纤维板股份有限公司 | Stack board of waste paper pulp and its making technology |
| CN101122107A (en) * | 2006-08-08 | 2008-02-13 | 上海宏图纸业有限公司 | High quantitative grey board production technique and drying shaping device |
| CN201046589Y (en) * | 2007-05-11 | 2008-04-16 | 王士夺 | Straight-line type paper-face gypsum plate production line |
| DE102008063215A1 (en) * | 2008-12-29 | 2010-07-08 | Eastman Kodak Co. | Printing substrate i.e. paper web, and/or printing medium i.e. ink, drying method for use in multicolor printing machine, involves applying microwaves into substrate and/o medium in region in which substrate and/or medium clasps rollers |
| CN201706867U (en) * | 2010-06-30 | 2011-01-12 | 北新集团建材股份有限公司 | Intelligent hot air micro-wave thistle board drying system |
| CN102371237A (en) * | 2010-08-17 | 2012-03-14 | 陈伟民 | Method and device for fast drying paper cylinder |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403315A (en) * | 2016-11-30 | 2017-02-15 | 丁雪枫 | Multi-energy energy saving drying system |
| CN109231769A (en) * | 2018-10-30 | 2019-01-18 | 饶宾期 | Mechanism filter-pressing microwave coupling dehydration and drying integrated apparatus |
| CN109231769B (en) * | 2018-10-30 | 2023-12-26 | 深圳市中科绿建环保工程有限公司 | Mechanical filter-pressing microwave coupling dehydration desiccation integrated device |
| CN109738325A (en) * | 2019-01-23 | 2019-05-10 | 西安理工大学 | A kind of laboratory apparatus of test ink printing rate of drying |
| CN109738325B (en) * | 2019-01-23 | 2021-10-26 | 河北万杰机械科技股份有限公司 | Experimental instrument for testing printing ink printing drying rate |
| CN114812100A (en) * | 2021-01-27 | 2022-07-29 | 永虹先进材料股份有限公司 | Mineral dewatering equipment and process |
| CN114812100B (en) * | 2021-01-27 | 2023-12-19 | 永虹先进材料股份有限公司 | Mineral dewatering equipment and process |
| CN116876250A (en) * | 2023-07-07 | 2023-10-13 | 浙江金龙再生资源科技股份有限公司 | Device and process for producing exposed-bottom-ash-free paperboard with increased bulk |
| CN116876250B (en) * | 2023-07-07 | 2024-05-17 | 浙江金龙再生资源科技股份有限公司 | Device and process for producing exposed-bottom-ash-free paperboard with increased bulk |
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