CN102401554A - Drying system for plaster slab - Google Patents

Drying system for plaster slab Download PDF

Info

Publication number
CN102401554A
CN102401554A CN2010102754077A CN201010275407A CN102401554A CN 102401554 A CN102401554 A CN 102401554A CN 2010102754077 A CN2010102754077 A CN 2010102754077A CN 201010275407 A CN201010275407 A CN 201010275407A CN 102401554 A CN102401554 A CN 102401554A
Authority
CN
China
Prior art keywords
arid region
heat
drying system
plasterboard
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2010102754077A
Other languages
Chinese (zh)
Other versions
CN102401554B (en
Inventor
王鹏起
赵金平
周建中
李娜
谭丹君
王莹
冯小江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing New Building Material Group Co Ltd
Original Assignee
Beijing New Building Material Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing New Building Material Group Co Ltd filed Critical Beijing New Building Material Group Co Ltd
Priority to CN201010275407.7A priority Critical patent/CN102401554B/en
Publication of CN102401554A publication Critical patent/CN102401554A/en
Application granted granted Critical
Publication of CN102401554B publication Critical patent/CN102401554B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a drying system for a plaster slab. The drying system comprises a first drying area, a second drying area, a third drying area, a combustion device and a heat exchanger, wherein each drying area is provided with a circulating heat conduction exchange pipe and an inlet and an outlet of the circulating heat conduction exchange pipe; the first drying area and the second drying area are also provided with a humidity discharging device and an air supply device; the combustion device is used for combusting natural gas or coal; the heat exchanger air in a circulating hot wind exchange pipe is heated and returns to the first drying area and the second drying area; a heat exchange device is connected to the humidity discharging device and is used for exchanging heat steam discharged from the humidity discharging device into hot air and condensate water; the hot air is connected with a hot air supply device through pipes and is used for blowing the hot air to the first drying area and the second drying area; and the condensate water returns to a plaster slab production line system to be recycled. By the drying system, moisture and waste heat which are generated in the drying process can be collected effectively, the humidity environment and temperature environment in the drying process of the plaster slab can be improved and controlled, and the quality of the plaster slab is improved.

Description

A kind of plasterboard drying system
Technical field
The application relates to a kind of Thistle board production system, particularly relates to a kind of plasterboard drying system.
Background technology
Nearly all gypsum board production line all is to utilize fossil fuel (coal, natural gas etc.) to satisfy the heat energy demand in the gypsum board manufacture process.These heat energy are mainly used in the production phases such as dry run of plasterboard base feed, gypsum sintering and plasterboard.
At the plasterboard drying stage, the plasterboard that the heat energy drying of utilizing fuel combustion to produce is passed through continuously.Wet plasterboard water content before dry is about 25-35wt%, reduces to below the 1wt% through water content after the super-dry.Water in the wet plasterboard almost completely is to evaporate through the heat energy that fuel combustion produces.Prior art is verified: keep specific RH value to help improving evaporation rate and the quality that improves plasterboard in the drying system.
As a rule, the plasterboard drying system has three zones, and each zone all has hot air circulation pipe (perhaps using conduction oil), and needs maintenance specific relative humidity and temperature.Burner is used for controlling temperature, and relative humidity is regulated control through exhaust (wetting) and air entry.According to traditional dry run model, the drying of plasterboard can be divided into three phases: quicken drying stage (corresponding first arid region), constant rate of drying district stage (corresponding second arid region) and falling rate drying period (corresponding the 3rd arid region).Yet in the prior art, a large amount of steam that in drying steps, produce are not reasonably reclaimed and are utilized fully.
Summary of the invention
To the problem that prior art exists, density of the present invention is to provide a kind of can make a large amount of waste heat of generation and the plasterboard drying system that steam is recycled.
To achieve these goals, the application has adopted following technical scheme.
The invention provides a kind of plasterboard drying system, comprising: first, second and the 3rd arid region, first, second arid region includes import and outlet, is used for the circulation of circulating heat conduction oil; The 3rd arid region comprises import and outlet, is used for the entering and the discharge of cooled hot gas; Further, also comprise:
Burner and coupled heat exchanger, wherein, hot gas and circulating heat conduction oil that burner produces carry out heat exchange, and the conduction oil after the heating gets into first, second arid region through the import circulation; Dedusting gets into the 3rd arid region to hot gas after the heat exchange through dirt pocket;
Air supply plant and humidity-discharging device; Be positioned at first, second arid region; Humidity-discharging device is connected with heat-exchanger rig; Through heat-exchanger rig, high-temperature vapor that humidity-discharging device is discharged and the ducted air of air supply plant carry out heat exchange and heating, and the air after the heating evenly is transported to first and second arid regions through air supply plant and gas distribution face plate.
Preferably, the high-temperature vapor that said humidity-discharging device is discharged converts condensed water to through after the heat exchange, and this condensed water is used for the plasterboard batch plant and joins slurry and foam process.
Preferably, the waste heat got rid of of said the 3rd arid region and the steam cold water that is used for the heated and stirred process.
Preferably, also comprise the gypsum board panels pipeline that is arranged on said first, second arid region, the 3rd arid region.
Preferably, flow control valve also is installed between the inlet of said heat exchanger and said first, second arid region.
Preferably, the top or the bottom that are positioned at every laminate material pipeline of said first, second arid region all are equipped with the exchange pipe that is used to transmit circulating heat conduction oil.
Preferably, in the top or the bottom of every laminate material pipeline of said first, second arid region said gas distribution face plate is installed all, the hot gas that is used for evenly transmitting the air supply plant transmission is to gypsum board surface.
Preferably, gas distribution face plate all is installed, is used for evenly transmitting hot gas behind the air inlet transmission heat-exchange dedusting to gypsum board surface in the top or the bottom of every laminate material pipeline of said the 3rd arid region.
Preferably, the temperature of the hot gas that said burner produces is higher than 1000 ℃, and when circulating heat conduction oil got into said heat exchanger from outlet, temperature was 150-250 ℃; Arrive 300-350 ℃ through said heat exchanger heats.
Preferably, after said heat exchanger heat exchange, the hot air temperature after the heat exchange is lowered to about below 200 ℃.
Adopt plasterboard drying system of the present invention can realize the utilization of industrial exhaust heat, improved the utilization rate of heat, shortened the production time; And in system design process, considered dry characteristics and the requirement of plasterboard; The heat and condensed water and the steam that have utilized dry run to produce targetedly; Can improve and control humidity, the temperature environment of plasterboard dry run, improve the quality of plasterboard.
Description of drawings
Fig. 1 is the sketch map of plasterboard drying system of the present invention.The accompanying drawing table among the figure and the implication of representative are following:
11-first arid region, 12-second arid region, 13-the 3rd arid region, the import of 14-circulating heat conduction oil exchange pipe; The outlet of 15-circulating heat conduction oil exchange pipe, 16-air inlet, 17-gas outlet, 21-burner; The cooled hot gas of 22-(comprising the flue gas that unreacted fuel produces), the hot gas that the 23-burning produces (comprising the flue gas that unreacted fuel produces), 24-dust arrester, 25-heat exchanger; The 26-flow control valve, 31-air supply plant, 32-heat-exchanger rig; The 33-humidity-discharging device, 34-waste heat and steam, 35-mixing container.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is explained in detail
As shown in Figure 1; Plasterboard drying system of the present invention comprises: first dry section 11, second arid region 12 and the 3rd arid region 13, burner 21 and the heat exchanger 25 that links to each other with burner 21, air supply plant 31, humidity-discharging device 35 and be arranged on the gypsum board panels pipeline (not shown go out) of first arid region 11, second arid region 12, the 3rd arid region 13, and concrete is provided with as follows:
First, second arid region 11,12 includes import 14 and exports 15, is used for the circulation of circulating heat conduction oil; The 3rd arid region 13 comprises import 16 and outlet 17, is used for the entering and the discharge of cooled hot gas.
The hot gas 23 that burner 21 produces carries out heat exchange with circulating heat conduction oil, and the conduction oil after the heating gets into first, second arid region 11,12 through import 14 circulations; 24 dedustings get into the 3rd arid region 13 to hot gas after the heat exchange through dirt pocket.
Air supply plant 31 is positioned at first, second arid region 11,12 with humidity-discharging device 33; Humidity-discharging device 31 is connected with heat-exchanger rig 32; Through heat-exchanger rig 32; High-temperature vapor that humidity-discharging device 31 is discharged and air supply plant 31 ducted air carry out heat exchange and heating, and the air after the heating evenly is transported to first and second arid regions 11,12 through air supply plant 31 and gas distribution face plate.Between the inlet 14 of heat exchanger 25 and first, second arid region 11,12 flow control valve 26 is installed also.
In addition, the top or the bottom that are positioned at every laminate material pipeline of first, second arid region 11,12 all are equipped with the exchange pipe that is used to transmit circulating heat conduction oil.Top or bottom at every laminate material pipeline of first, second arid region 11,12 all are equipped with gas distribution face plate, and the hot gas that is used for evenly transmitting air supply plant 31 transmission is to gypsum board surface.Top or bottom at every laminate material pipeline of the 3rd arid region 13 all are equipped with gas distribution face plate, are used for evenly transmitting hot gas behind the air inlet 16 transmission heat-exchange dedustings to gypsum board surface.
Burner 21 of the present invention can adopt traditional gas burner or gas furnace.The hot air temperature that burning produces can be up to more than 1000 ℃.The hot gas that burner produces (comprising the flue gas that unreacted fuel produces) 23 directly gets into heat exchanger 25; Hot gas is oily (shown in the arrow through the circulating heat conduction that heat exchange produces; Pass through pipeline transmission) supply with first arid region 11 and second arid region 12 of plasterboard drying systems through inlet 14; Circulating heat conduction oil is from exporting 15 when getting into heat exchanger 25, and temperature is 150-250 ℃, is preferably 250 ℃.Behind heat exchanger 25, be heated to 300-350 ℃.Circulating heat conduction oil after the heating gets into first arid region 11 and second arid region 12 again through flow control valve.These circulating heat conduction oil are used for evaporating the wet plasterboard that is positioned at first arid region 11 and second arid region 12.Behind over-heat-exchanger 25, the hot gas that burning produces (comprising the flue gas that unreacted fuel produces) 23 temperature are lowered to about below 200 ℃.This cooled hot gas (comprising the flue gas that unreacted fuel produces) 22 is through passing through inlet 16 dry gas as the 3rd arid region 13 after dirt pocket 24 dedustings.
Humidity-discharging device 33 is used to discharge a large amount of high-temperature vapors that evaporation process produces.Carry out heat exchange through heat-exchanger rig 32 high-temperature vapors and the ducted air of air supply plant; With the air heat in the air duct to about 120-150 ℃; And be sent to first arid region 11 and second arid region 12 respectively, be used to regulate and control relative humidity wherein.And this steam converts condensed water to, and condensed water can supply the plasterboard blending process to use, and for example is used for the plasterboard batch plant and joins slurry and foaming usefulness.The heating that waste heat that the 3rd arid region produces and steam 34 can be used for mixing tank for coating colors cold water.
The sheet material pipeline of plasterboard drying system of the present invention can carry 1~12 laminate to carry out drying in vertical direction.The sheet material pipeline preferably adopts the carrying roller pipeline that is made up of carrying roller and carrying roller transmission mechanism.In addition; Top or bottom installation through every laminate material pipeline are used to transmit the uniformity that the oily exchange pipe (not shown) of circulating heat conduction guarantees first arid region 11 and second arid region, 12 dryings; And the air that is heated to more than 100-150 ℃ that air supply plant 31 is sent into can pass through gas distribution face plate, in the space of first arid region 11 and second arid region 12, evenly distributes.The structure of distributing panel and structure can utilize the disclosed structure of known systems.
Need to prove that Fig. 1 only represents the sketch map of plasterboard drying system of the present invention, humidity-discharging device wherein, air supply plant, outlet, entry position can be designed according to the ordinary skill knowledge that those skilled in the art grasps.The first and second arid region arrows only are used to refer to the path of signal circulating heat conduction oil (being positioned at the circulating heat conduction oil pipe, not shown), but also non-limiting its path is as shown in Figure 1.In addition, in order to simplify accompanying drawing, circulating heat conduction oil exchange pipe and plasterboard transport have been omitted among the figure.And, in order to improve productive rate, can in drying system, the multi-layered board pipeline be set in vertical direction, these characteristics all do not illustrate in the drawings.
Adopt plasterboard drying system of the present invention can realize the utilization of industrial exhaust heat, improved the utilization rate of heat, shortened the production time; And in system design process, considered dry characteristics and the requirement of plasterboard; The heat and condensed water and the steam that have utilized dry run to produce targetedly; Can improve and control humidity, the temperature environment of plasterboard dry run, improve the quality of plasterboard.

Claims (10)

1. plasterboard drying system comprises: first, second and the 3rd arid region, and first, second arid region includes import and outlet, is used for the circulation of circulating heat conduction oil; The 3rd arid region comprises import and outlet, is used for the entering and the discharge of cooled hot gas; It is characterized in that, also comprise:
Burner and coupled heat exchanger, wherein, hot gas and circulating heat conduction oil that burner produces carry out heat exchange, and the conduction oil after the heating gets into first, second arid region through the import circulation; Dedusting gets into the 3rd arid region to hot gas after the heat exchange through dirt pocket;
Air supply plant and humidity-discharging device; Be positioned at first, second arid region; Humidity-discharging device is connected with heat-exchanger rig; Through heat-exchanger rig, high-temperature vapor that humidity-discharging device is discharged and the ducted air of air supply plant carry out heat exchange and heating, and the air after the heating evenly is transported to first and second arid regions through air supply plant and gas distribution face plate.
2. plasterboard drying system as claimed in claim 1 is characterized in that, the high-temperature vapor that said humidity-discharging device is discharged converts condensed water to through after the heat exchange, and this condensed water is used for the plasterboard batch plant and joins slurry and foam process.
3. plasterboard drying system as claimed in claim 1 is characterized in that, the cold water that waste heat that said the 3rd arid region is got rid of and steam are used for the heated and stirred process.
4. plasterboard drying system as claimed in claim 1 is characterized in that, also comprises the gypsum board panels pipeline that is arranged on said first, second arid region, the 3rd arid region.
5. plasterboard drying system as claimed in claim 1 is characterized in that, flow control valve also is installed between the inlet of said heat exchanger and said first, second arid region.
6. plasterboard drying system as claimed in claim 4 is characterized in that, the top or the bottom that are positioned at every laminate material pipeline of said first, second arid region all are equipped with the exchange pipe that is used to transmit circulating heat conduction oil.
7. plasterboard drying system as claimed in claim 4; It is characterized in that; Top or bottom at every laminate material pipeline of said first, second arid region all are equipped with said gas distribution face plate, and the hot gas that is used for evenly transmitting the air supply plant transmission is to gypsum board surface.
8. plasterboard drying system as claimed in claim 4; It is characterized in that; Top or bottom at every laminate material pipeline of said the 3rd arid region all are equipped with gas distribution face plate, are used for evenly transmitting hot gas behind the air inlet transmission heat-exchange dedusting to gypsum board surface.
9. like the arbitrary described plasterboard drying system of claim 1 to 8, it is characterized in that the temperature of the hot gas that said burner produces is higher than 1000 ℃, when circulating heat conduction oil got into said heat exchanger from outlet, temperature was 150-250 ℃; Arrive 300-350 ℃ through said heat exchanger heats.
10. plasterboard drying system as claimed in claim 9 is characterized in that, after said heat exchanger heat exchange, the hot air temperature after the heat exchange is lowered to about below 200 ℃.
CN201010275407.7A 2010-09-07 2010-09-07 Drying system for plaster slab Active CN102401554B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010275407.7A CN102401554B (en) 2010-09-07 2010-09-07 Drying system for plaster slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010275407.7A CN102401554B (en) 2010-09-07 2010-09-07 Drying system for plaster slab

Publications (2)

Publication Number Publication Date
CN102401554A true CN102401554A (en) 2012-04-04
CN102401554B CN102401554B (en) 2014-03-12

Family

ID=45884007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010275407.7A Active CN102401554B (en) 2010-09-07 2010-09-07 Drying system for plaster slab

Country Status (1)

Country Link
CN (1) CN102401554B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398548A (en) * 2013-07-29 2013-11-20 蔡京鹏 Method and device for vaporization-heat-mostly-recyclable drying, carbonization or pyrolysis
CN103940208A (en) * 2014-04-10 2014-07-23 山东六九矿业装备科技有限公司 Gypsum board industrial waste heat drying system
CN107056109A (en) * 2017-06-21 2017-08-18 焦作市强耐建材有限公司 A kind of conservancy and energy-saving production system for making gypsum
CN107289768A (en) * 2017-06-13 2017-10-24 河南中联热科工业节能股份有限公司 A kind of dynamic gelatin drying system
CN108919867A (en) * 2018-09-11 2018-11-30 宁波北新建材有限公司 A kind of control method of the temperature and humidity control system of drying system for plaster slab

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311261A1 (en) * 1975-05-12 1976-12-10 Electricite De France Gypsum plate drying process - uses superheated water vapour in first zone and dry hot air in second zone
JP2005297245A (en) * 2004-04-07 2005-10-27 Zero System:Kk Drier for plasterboard
CN2823942Y (en) * 2005-08-29 2006-10-04 山东泰和东新股份有限公司 Hot air drier for paper face gypsum board
CN201463488U (en) * 2009-03-11 2010-05-12 泰山石膏股份有限公司 Coal-to-gas direct-fired dry gypsum board device
CN101782314A (en) * 2009-01-16 2010-07-21 北新集团建材股份有限公司 Efficient process for low-temperature steam drying

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311261A1 (en) * 1975-05-12 1976-12-10 Electricite De France Gypsum plate drying process - uses superheated water vapour in first zone and dry hot air in second zone
JP2005297245A (en) * 2004-04-07 2005-10-27 Zero System:Kk Drier for plasterboard
CN2823942Y (en) * 2005-08-29 2006-10-04 山东泰和东新股份有限公司 Hot air drier for paper face gypsum board
CN101782314A (en) * 2009-01-16 2010-07-21 北新集团建材股份有限公司 Efficient process for low-temperature steam drying
CN201463488U (en) * 2009-03-11 2010-05-12 泰山石膏股份有限公司 Coal-to-gas direct-fired dry gypsum board device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398548A (en) * 2013-07-29 2013-11-20 蔡京鹏 Method and device for vaporization-heat-mostly-recyclable drying, carbonization or pyrolysis
CN103398548B (en) * 2013-07-29 2016-01-20 蔡京鹏 A kind of heat of vaporization can greatly portion recycle oven dry, destructive distillation or method for pyrolysis and device
CN103940208A (en) * 2014-04-10 2014-07-23 山东六九矿业装备科技有限公司 Gypsum board industrial waste heat drying system
CN103940208B (en) * 2014-04-10 2015-12-02 山东六九矿业装备科技有限公司 Plasterboard industrial exhaust heat drying system
CN107289768A (en) * 2017-06-13 2017-10-24 河南中联热科工业节能股份有限公司 A kind of dynamic gelatin drying system
CN107289768B (en) * 2017-06-13 2022-09-02 河南中联热科工业节能股份有限公司 Dynamic gelatin drying system
CN107056109A (en) * 2017-06-21 2017-08-18 焦作市强耐建材有限公司 A kind of conservancy and energy-saving production system for making gypsum
CN108919867A (en) * 2018-09-11 2018-11-30 宁波北新建材有限公司 A kind of control method of the temperature and humidity control system of drying system for plaster slab

Also Published As

Publication number Publication date
CN102401554B (en) 2014-03-12

Similar Documents

Publication Publication Date Title
EP1946006B1 (en) Method and system for heating of water based on hot gases
CN102012036B (en) Composite phase-transition heat exchanging device for warming clean gas fume and recovering exhaust heat after wet desulphurization
CN102401554B (en) Drying system for plaster slab
CN103575068B (en) Lignite drying water recycling and drying tail gas recycling system
CN101995028B (en) Energy and water saving desulphuration integrated system for power plant
CN203561148U (en) Lignite dry water recovering and dry tail gas recycling system
CN203741285U (en) Biomass hot fuel gas cooling system
CN203687075U (en) Primary air system of coal mill of thermal power plant
CN102398303B (en) Gypsum board production line
CN101580740B (en) Preheated multistage air distribution gasification process for fixed bed straws
CN102533302A (en) Internal heating type dryer for in-furnace coking coal dehumidification
CN201476597U (en) Ceramic kiln smoke purifying and surplus heat comprehensive utilization device
CN201917230U (en) Afterheat concentrated recovering device for tubular heating furnace
CN104654768A (en) Biogas hot air drying process
CN201284292Y (en) Central heating system for gypsum board and construction gypsum production line
CN202492499U (en) Internal heating type dryer for dehumidifying coking coal entering into furnace
CN212440669U (en) Wet and hot flue gas waste heat recovery and utilization system
CN203273907U (en) Combustion air system of large-scale household garbage incinerator
CN201367419Y (en) Pre-heated multilevel air distribution fixed bed straw gasification device
CN203478592U (en) Atmosphere-type fuel gas module energy-saving environment-protecting boiler
CN206037002U (en) Condensation steam boiler
CN105066657A (en) Paper drying energy comprehensive utilization system for steam and hot air combined supply boiler
CN202337761U (en) Coking coal humidity adjustment system of energy-saving fluidized bed
CN103940208B (en) Plasterboard industrial exhaust heat drying system
CN103334802A (en) Thermoelectric-coupling type comprehensive energy-utilizing system based on air-cooling device and working method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant