CN114105438A - Efficient and energy-saving material drying system and method - Google Patents
Efficient and energy-saving material drying system and method Download PDFInfo
- Publication number
- CN114105438A CN114105438A CN202111393193.8A CN202111393193A CN114105438A CN 114105438 A CN114105438 A CN 114105438A CN 202111393193 A CN202111393193 A CN 202111393193A CN 114105438 A CN114105438 A CN 114105438A
- Authority
- CN
- China
- Prior art keywords
- steam
- drying
- hydrophobic
- heat
- exhaust
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02P70/10—Greenhouse 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a high-efficiency energy-saving material drying system and a method, wherein the high-efficiency energy-saving material drying system comprises: the drying machine comprises at least one drying machine, a hydrophobic heat regenerator, a steam exhaust condenser, a cyclone dust collector and a fan, wherein a moisture carrying inlet of the drying machine is connected with a residual heat water outlet of the hydrophobic heat regenerator, a steam exhaust outlet of the drying machine is connected with a steam inlet of the cyclone dust collector, a hydrophobic outlet of the drying machine is connected with a heat source water inlet of the hydrophobic heat regenerator, and a steam outlet of the cyclone dust collector is connected with a steam inlet of the hydrophobic heat regenerator through the steam exhaust condenser and the fan in sequence. The invention realizes the purpose of circularly using steam to dry the exhaust steam, reduces the heat energy consumed by the circulation of the exhaust steam, reduces the moisture carrying amount in the drying process, and obviously improves the utilization rate of the heat energy and the circulating heat efficiency.
Description
Technical Field
The invention relates to the technical field of material treatment, in particular to a high-efficiency and energy-saving material drying system and method.
Background
The material drying technology makes a great contribution to material reduction, and for sludge in a sewage plant, after sludge with the water content of 99% is subjected to concentration and dehydration treatment only until the water content is 80%, the volume of the sludge is reduced to one twentieth of the original volume, the material state changes along with the change of the water content, and when the sludge is continuously dried and the water content is lower than 60%, the sludge is in a solid state. When the water content is lower than 40%, the sludge is powdery. The traditional steam drying process has the advantages of mature technology, strong processing capacity, small influence on the environment, small occupied area and the like, but the high energy consumption greatly reduces the market competitiveness of the process.
At present, various waste heat utilization material drying processes are available, but the problems of low energy consumption and poor preheating utilization exist in the aspect of actual production and operation.
Chinese patent application CN107585996A discloses a high-efficiency, energy-saving and environment-friendly sludge drying system and a method, which comprises a tail gas treatment system; the tail gas treatment system comprises a cyclone dust collector, a gas washing tower, a washing water pump, an adsorption tank, an induced draft fan and a chimney; wet sludge is conveyed from a sludge bin to a sludge drier by a screw feeder and is heated and dried by low-temperature steam or heat conduction oil or hot flue gas or hot air in the sludge drier, tail gas formed by steam and non-condensable gas evaporated in the drying process enters a cyclone dust collector, is subjected to dust removal by the cyclone dust collector and then enters a gas washing tower for washing and cooling, generated waste gas enters an active carbon adsorption tank again, is led out by an induced draft fan and is discharged from a chimney, and washing water discharged by the gas washing tower enters a lithium bromide heat pump for waste heat recovery; and a part of the washing water which is cooled by taking away the heat by the lithium bromide heat pump is sent to a gas washing tower for circular gas washing, and a part of the washing water is sent to a sewage plant for treatment. However, the invention only surrounds the simple application of the waste steam recovery of the sludge drying system, a large amount of water after heat exchange by the heat pump is discharged from the drying system to a wastewater treatment plant, and the effective recovery and utilization of the drainage of the steam drying machine and the heat of the waste steam are not realized.
Chinese patent CN106145605A discloses an energy-saving sludge drying method, which adopts a sludge preheater, an indirectly heated sludge drying machine, a cyclone dust collector, a waste gas condenser and a waste gas draught fan; steam is sent to the indirect heating sludge drier through a pipeline, steam condensate water after the sludge drier releases heat has residual heat, the steam condensate water is conveyed to the sludge preheater through the pipeline to release residual heat again, and the residual heat preheats sludge to be dried; wet sludge is conveyed into a sludge preheater through a pipeline, and the temperature of the sludge is raised by more than 50 ℃ through the preheating of the sludge preheater; mud is through heating in indirect heating sludge drying machine, and wherein moisture and other volatilizable component generate gas after being heated, and cyclone below sets up a long-pending hopper, and the hopper sets up with the dust remover main part and separates normally open isolating valve, and the below export sets up the blowdown isolating valve of normally closed, and waste gas becomes liquid back from the gaseous state, and the volume diminishes, is discharged waste gas by the waste gas draught fan again. The sludge drying system is divided into two parts, namely a sludge preheater and an indirect heating sludge drying machine, but the sludge can be directly dried to a specified degree by steam (or other indirect heating type heat sources) without preheating in the prior sludge drying, so that the sludge drying system is more intensive, and the heat loss of the secondary heating sludge form is far greater than that of the direct primary heating.
Therefore, how to develop a high-efficiency and energy-saving material drying method, which meets the technical requirements of high efficiency, energy saving, economy and feasibility, is beneficial to subsequent resource utilization, and is a problem worthy of deep research.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an efficient and energy-saving material drying system to solve the problems in the background technology.
In order to achieve the above object, the present invention provides an efficient and energy-saving material drying system, comprising: the drying machine comprises at least one drying machine, a hydrophobic heat regenerator, a steam exhaust condenser, a cyclone dust collector and a fan, wherein a moisture carrying inlet of the drying machine is connected with a residual heat water outlet of the hydrophobic heat regenerator, a steam exhaust outlet of the drying machine is connected with a steam inlet of the cyclone dust collector, a hydrophobic outlet of the drying machine is connected with a heat source water inlet of the hydrophobic heat regenerator, and a steam outlet of the cyclone dust collector is connected with a steam inlet of the hydrophobic heat regenerator through the steam exhaust condenser and the fan in sequence.
In a preferred embodiment, a part of steam discharged from the steam exhaust condenser is recycled to the hydrophobic heat regenerator in a grading way, and a part of steam is discharged out of the material drying system.
In a preferred embodiment, the steam outlet of the cyclone dust collector is connected with the steam inlet of the steam exhaust condenser, the inlet of the steam outlet fan of the steam exhaust condenser is connected, and the outlet of the fan is connected with the steam inlet of the hydrophobic heat regenerator.
In a preferred embodiment, the hydrophobic heat regenerator comprises a heat source water outlet, and the hydrophobic exhaust material drying system is used for discharging the hydrophobic exhaust material after being cooled in the hydrophobic heat regenerator and sending the hydrophobic exhaust material drying system to a power plant for reuse.
In a preferred embodiment, the drier is in a steam indirect drying mode, the drier is a combined arrangement of one or more belt type driers, and the drier comprises at least two heat source steam inlets, wherein one of the heat source steam inlets is a main steam inlet, and the other one or more heat source steam inlets are moisture-carrying inlets.
In a preferred embodiment, the drying machine comprises a material feeding port and a discharging port, the material feeding port is used for feeding initial materials, the initial materials are wet materials with the same or different water content or dry materials generated after drying by other drying machines, the drying machines use steam as a heat source to dry the initial materials, the dried materials are output through the discharging port, and simultaneously, steam-cooled hydrophobic materials and residual steam are output.
In a preferred embodiment, the moisture content of the wet material is 60% -80%, and the moisture content of the dried material is 35% -45%.
In a preferred embodiment, the temperature of the main steam is about 150 ℃, the temperature of the supplementary steam heat source is 85 ℃, the main steam enters the drying machine from the main steam inlet, the supplementary steam heat source enters the drying machine from the moisture-carrying gas inlet, and the main steam inlet and the moisture-carrying gas inlet are started and stopped simultaneously.
The invention also provides a high-efficiency and energy-saving material drying method, which is characterized by comprising the following steps: the material drying method comprises the following steps:
s1, feeding the initial material into a drying machine, and drying by using steam;
s2, outputting the dried material through a discharge opening, and outputting dried exhaust steam through an exhaust steam outlet;
s3, introducing the dried exhaust steam into a cyclone dust collector, an exhaust steam condenser and a fan in sequence, and recycling the dried exhaust steam to a hydrophobic heat regenerator in a grading manner;
s4, exchanging heat between the drain water discharged from the drain water outlet of the drier and the dried exhaust steam recovered by the exhaust steam condenser in a drain water heat regenerator, and heating the dried exhaust steam by using drain water waste heat;
s5, introducing the heated dried exhaust steam into a drying machine to replace air to serve as moisture carrying gas.
In a preferred embodiment, a wet material with the water content of 60-80% is conveyed into a drier by a conveying device, main steam at 150 ℃ enters the drier from a main steam inlet, a supplementary steam heat source at 85 ℃ enters the drier from a moisture carrying inlet, an initial material is dried to a material with the water content of 30-40% through thermal contact, a dried exhaust steam outlet outputs dried exhaust steam at 100 ℃ after drying treatment, dried exhaust steam at 100 ℃ is subjected to cyclone dust collector to remove large particle substances in the dried exhaust steam, purified dried exhaust steam exchanges heat with cooling water in an exhaust steam condenser, the dried exhaust steam in the exhaust steam condenser is condensed and cooled to 50 ℃ and then is conveyed into a fan, 80% of dried exhaust steam in the fan is conveyed into a hydrophobic heat regenerator and exchanges heat with 100 ℃ water discharged from a hydrophobic outlet of the drier, and the dried exhaust steam is heated to 85 ℃ by using hydrophobic drying waste heat.
Compared with the prior art, the invention has the beneficial effects that:
the material drying system comprises at least one drying machine, a hydrophobic heat regenerator, an exhaust steam condenser, a cyclone dust collector and a fan, wherein dried exhaust steam output from an exhaust steam outlet of the drying machine is subjected to large-particle substances in the exhaust steam by the cyclone dust collector, a large amount of purified exhaust steam can be recycled, then the exhaust steam is cooled by the exhaust steam condenser, 80% of dried exhaust steam after being cooled is pressurized by the fan and is sent to the hydrophobic heat regenerator to be heated, the heat exchange is carried out between hydrophobic steam and the dried exhaust steam from the exhaust steam condenser, the exhaust steam after being heated enters the drying machine again to serve as a supplementary heat source, and the hydrophobic steam after being cooled in the hydrophobic heat regenerator is discharged out of the system. The two-stage configuration recovery efficiency of the exhaust steam condenser and the hydrophobic heat regenerator is higher than that of a one-stage arrangement form, the heat exchange efficiency can be saved by 3%, meanwhile, the hydrophobic waste heat in the material drying system can be used as a heat exchange heat source of the hydrophobic heat regenerator, the steam drying exhaust steam can be recycled, the heat energy consumed by exhaust steam circulation is reduced, the moisture carrying amount in the drying process is reduced, and the utilization rate and the cycle heat efficiency of the heat energy are obviously improved.
Drawings
Fig. 1 is a schematic structural connection diagram of a material drying system according to a preferred embodiment of the present invention.
Fig. 2 is a flow chart of a material drying method according to a preferred embodiment of the present invention.
Description of reference numerals:
1-a drier, 11-a moisture carrying inlet, 12-a main steam inlet, 13-a dead steam outlet, 14-a hydrophobic outlet, 15-a material feeding port, 16-a discharging port, 2-a hydrophobic heat regenerator, 3-a dead steam condenser, 4-a cyclone dust collector and 5-a fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Example 1
As shown in fig. 1, the energy-efficient material drying system according to the preferred embodiment of the present invention includes: at least one drier 1, a hydrophobic heat regenerator 2, a dead steam condenser 3, a cyclone dust collector 4 and a fan 5. Wherein, the moisture-carrying inlet 11 of the drier 1 is connected with the residual heat water outlet of the hydrophobic heat regenerator 2, the exhaust steam outlet 13 of the drier 1 is connected with the steam inlet of the cyclone dust collector 4, and the hydrophobic outlet 14 of the drier 1 is connected with the heat source water inlet of the hydrophobic heat regenerator 2. The steam outlet of the cyclone dust collector 4 is connected with the steam inlet of the hydrophobic heat regenerator 2 through a steam exhaust condenser 3 and a fan 5 in sequence.
Specifically, the drier 1 adopts a steam indirect drying mode, the drier 1 is one or more belt type driers which are jointly arranged, the drier 1 comprises at least two heat source steam inlets, one of the heat source steam inlets is a main steam inlet 12 used for feeding main steam, and the other one or more heat source steam inlets are moisture carrying inlets 11. The temperature of the main steam is about 150 ℃, the temperature of the supplementary steam heat source is 85 ℃, the main steam enters the drier 1 from the main steam inlet 12, the supplementary steam heat source enters the drier 1 from the moisture carrying inlet 11, the main steam inlet and the moisture carrying inlet are started and stopped simultaneously, the combined configuration has an adjusting effect on materials with large moisture content differences, a preheating link is provided, the waste heat of the dead steam of the main steam is fully utilized, and the energy-saving significance is achieved.
Further, the drying machine 1 comprises a material feeding hole 15 and a discharging hole 16, wherein the material feeding hole 15 is used for feeding initial materials, and the initial materials are wet materials with the same or different water contents or dry materials generated after drying by other drying machines. Preferably, the moisture content of the wet material is 60-80%, and the moisture content of the material after drying treatment is 35-45%. The drier 1 takes steam as a heat source to dry and treat initial materials, the dried materials are output through the discharge opening 16, and meanwhile, the steam is cooled to drain water and residual dead steam.
Furthermore, a steam outlet of the cyclone dust collector 4 is connected with a steam inlet of the exhaust steam condenser 3, an inlet of a steam outlet fan 5 of the exhaust steam condenser 3 is connected, and an outlet of the fan 5 is connected with a steam inlet of the hydrophobic heat regenerator 2. The steam discharged from the dead steam condenser 3 is partially recycled to the drainage heat regenerator 2 in a grading way, and part of the steam is discharged out of the material drying system. The dried exhaust steam output from the exhaust steam outlet carries large-particle impurities such as dry materials, dust and the like, so the dried exhaust steam generated by the dryer needs to be removed from large-particle substances in the exhaust steam through the cyclone dust collector 4, a large amount of heat of the purified exhaust steam can be recovered for use, then the dried exhaust steam enters the exhaust steam condenser 3 to exchange heat with cooling water in the exhaust steam condenser 3, the exhaust steam in the exhaust steam condenser 3 is condensed and cooled and then is sent to the fan 5, and about 80% of the exhaust steam in the fan 5 is sent to the hydrophobic heat regenerator 2.
Further, the heat exchange process in the hydrophobic heat regenerator 2 is as follows: the heat source is the drier for dewatering at 100 ℃, the dewatering and the dried exhaust steam from the exhaust steam condenser 3 exchange heat, and the dried exhaust steam enters the drier 1 as a supplementary heat source again when reaching 80 ℃ after being heated. The hydrophobic heat regenerator 2 comprises a heat source water outlet and is used for discharging part of hydrophobic discharged materials after the temperature in the hydrophobic heat regenerator 2 is reduced out of a material drying system and sending the drained materials to a power plant for recycling.
Example 2
As shown in fig. 2, the invention also provides an efficient and energy-saving material drying method, which comprises the following steps:
s1, feeding the initial material into a drier 1, and carrying out drying treatment by using steam;
s2, outputting the material obtained through drying treatment through a discharge opening, and outputting dried exhaust steam through an exhaust steam outlet;
s3, dried exhaust steam is sequentially introduced into a cyclone dust collector 4, an exhaust steam condenser 3 and a fan 5 and is recycled to a hydrophobic heat regenerator 2 in a grading manner;
s4, exchanging heat between the drain water discharged from the drain water outlet of the drier 1 and the dried exhaust steam recovered by the exhaust steam condenser 3 in the drain water heat regenerator 2, and heating the dried exhaust steam by using the drain water waste heat;
and S5, introducing the heated drying exhaust steam into the drying machine 1 to replace air to serve as moisture carrying gas.
And S6, discharging the drained water after the temperature is reduced in the drainage heat regenerator 2 out of the material drying system, and conveying the drained water to a power plant for recycling.
In a specific embodiment, wet materials with the water content of 60-80% are conveyed into a drier 1 through a conveying device, main steam with the temperature of 150 ℃ enters the drier 1 from a main steam inlet, a supplementary steam heat source with the temperature of 85 ℃ enters the drier 1 from a moisture carrying inlet, initial materials are dried to materials with the water content of 30-40% through thermal contact, dried exhaust steam with the temperature of 100 ℃ is output from an exhaust steam outlet after drying treatment, large particle substances in the dried exhaust steam are removed through a cyclone dust collector 4 after the dried exhaust steam with the temperature of 100 ℃ is dried, purified dried exhaust steam exchanges heat with cooling water in an exhaust steam condenser 3, the exhaust steam in the exhaust steam condenser 3 is condensed and cooled to 50 ℃ and then is sent to a fan 5, and condensed water generated in the operation of the fan is discharged through a drain pipe of the fan. 80% of dried dead steam in the fan 5 is sent into the hydrophobic heat regenerator 2, exchanges heat with 100 ℃ hydrophobic heat discharged from a hydrophobic outlet of the dryer 1, heats the dried dead steam to 85 ℃ by using hydrophobic waste heat, and the dried dead steam is introduced into the dryer 1 to replace air as moisture carrying gas; and discharging the other 20 percent of dried exhaust steam to a tail gas treatment system.
It should be noted that, in the embodiment, the system only lists parameter values in a typical combination mode, and cannot be used as a data standard for identifying the system process; all data ranges within 20% of the temperature values described in the exemplary system are within the process achievable range.
The matching process in the embodiment can meet the requirement of completely recovering the waste heat of the drying machine with the output of 100t/d in the group 1, and the unit consumption of the dehydration steam in the process is about 0.86 t/t; compared with the traditional steam drying, the steam consumption is saved by at least 5 percent; the above data merely exemplify an energy efficiency analysis based on this particular system.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An energy-efficient material mummification system which characterized in that: the material drying system comprises: at least one mummification machine (1), hydrophobic regenerator (2), exhaust steam condenser (3), cyclone (4) and fan (5), wherein, mummification machine (1) take the moisture entry with the exhaust heat water export of hydrophobic regenerator (2) is connected, the exhaust steam export of mummification machine (1) with the steam inlet of cyclone (4) is connected, the hydrophobic export of mummification machine (1) with the heat source water entry of hydrophobic regenerator (2) is connected, the play steam port of cyclone (4) in proper order through exhaust steam condenser (3), fan (5) with the steam inlet of hydrophobic regenerator (2) is connected.
2. The material drying system of claim 1, wherein: and one part of the steam discharged from the dead steam condenser (3) is recycled to the hydrophobic heat regenerator (2) in a grading manner, and the other part of the steam is discharged out of the material drying system.
3. The material drying system of claim 2, wherein: and a steam outlet of the cyclone dust collector (4) is connected with a steam inlet of the dead steam condenser (3), a steam outlet of the dead steam condenser (3) is connected with an inlet of the fan (5), and an outlet of the fan (5) is connected with a steam inlet of the hydrophobic heat regenerator (2).
4. The material drying system of claim 3, wherein: the hydrophobic heat regenerator (2) comprises a heat source water outlet and is used for discharging hydrophobic water cooled in the hydrophobic heat regenerator (2) out of the material drying system and sending the hydrophobic water to a power plant for recycling.
5. The material drying system of claim 1, wherein: the drying machine (1) adopts a steam indirect drying form, the drying machine (1) is one or more belt drying machines which are jointly arranged, the drying machine (1) comprises at least two heat source steam inlets, one of the heat source steam inlets is a main steam inlet, and the other heat source steam inlet or the other heat source steam inlets are moisture carrying inlets.
6. The material drying system of claim 5, wherein: the drying machine (1) comprises a material feeding port and a discharging port, the material feeding port is used for feeding initial materials, the initial materials are wet materials with the same or different water contents or dry materials generated after drying of other drying machines, the drying machine (1) uses steam as a heat source for drying treatment of the initial materials, the materials after drying treatment are output through the discharging port, and meanwhile, the steam and the residual steam after cooling are output.
7. The material drying system of claim 6, wherein: the moisture content of the wet material is 60-80%, and the moisture content of the material after drying treatment is 35-45%.
8. The material drying system of claim 5, wherein: the temperature of the main steam is about 150 ℃, the temperature of the supplementary steam heat source is 85 ℃, the main steam enters the drier (1) from the main steam inlet, the supplementary steam heat source enters the drier (1) from the moisture carrying inlet, and the main steam inlet and the moisture carrying inlet are started and stopped simultaneously.
9. An efficient and energy-saving material drying method is characterized in that: the material drying method comprises the following steps:
s1, feeding the initial material into a drier (1), and carrying out drying treatment by using steam;
s2, outputting the dried material through a discharge opening, and outputting dried exhaust steam through an exhaust steam outlet;
s3, dried exhaust steam is sequentially introduced into a cyclone dust collector (4), an exhaust steam condenser (3) and a fan (5) and is recycled to the hydrophobic heat regenerator (2) in a grading manner;
s4, exchanging heat between the hydrophobic steam discharged from the hydrophobic outlet of the drier (1) and the dried exhaust steam recovered by the exhaust steam condenser (3) in the hydrophobic heat regenerator (2), and heating the dried exhaust steam by using the hydrophobic waste heat;
s5, introducing the heated drying exhaust steam into the drying machine (1) to replace air to serve as moisture carrying gas.
10. The material drying method of claim 9, wherein: conveying wet materials with the moisture content of 60-80% into a drier (1) by a conveying device, allowing 150 ℃ main steam to enter from a main steam inlet of the drier (1), supplying a steam heat source at 85 ℃ to enter from a moisture-carrying inlet of the drier (1), drying initial materials to materials with the moisture content of 30-40% through thermal contact, outputting 100 ℃ drying exhaust steam from an exhaust steam outlet after drying treatment, removing large granular substances in the drying exhaust steam through a cyclone dust collector (4) by using the 100 ℃ drying exhaust steam, exchanging heat between the purified drying exhaust steam and cooling water in an exhaust steam condenser (3), condensing and cooling the drying exhaust steam in the exhaust steam condenser (3) to 50 ℃, conveying the drying exhaust steam into a fan (5), conveying 80% of the drying exhaust steam in the fan (5) into a hydrophobic device (2), and performing 100 ℃ hydrophobic heat exchange with the hydrophobic material discharged from a hydrophobic outlet of the drier (1), and (4) heating the dried exhaust steam to 85 ℃ by using the waste heat of the drainage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111393193.8A CN114105438A (en) | 2021-11-23 | 2021-11-23 | Efficient and energy-saving material drying system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111393193.8A CN114105438A (en) | 2021-11-23 | 2021-11-23 | Efficient and energy-saving material drying system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114105438A true CN114105438A (en) | 2022-03-01 |
Family
ID=80439759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111393193.8A Pending CN114105438A (en) | 2021-11-23 | 2021-11-23 | Efficient and energy-saving material drying system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114105438A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013180243A (en) * | 2012-03-01 | 2013-09-12 | Metawater Co Ltd | Sludge drying system |
| CN104341084A (en) * | 2013-08-02 | 2015-02-11 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type dyeing sludge drying system for combined heat and power generation |
| CN107098562A (en) * | 2017-05-08 | 2017-08-29 | 苏州工业园区中法环境技术有限公司 | The thermal energy step reutilization system of two-stage sludge drying process |
| CN207362035U (en) * | 2017-10-25 | 2018-05-15 | 上海安悦节能技术有限公司 | Large and medium-sized sludge drying system based on MVR |
| CN111099810A (en) * | 2020-01-22 | 2020-05-05 | 上海仁创环境科技有限公司 | Indirect sludge drying device and method for recycling waste steam energy by heat pump |
| CN212713208U (en) * | 2020-05-25 | 2021-03-16 | 国惠环保新能源有限公司 | Sludge drying machine exhaust steam treatment system |
| CN216347662U (en) * | 2021-11-23 | 2022-04-19 | 国能龙源环保有限公司 | Material drying device with high circulating heat efficiency |
-
2021
- 2021-11-23 CN CN202111393193.8A patent/CN114105438A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013180243A (en) * | 2012-03-01 | 2013-09-12 | Metawater Co Ltd | Sludge drying system |
| CN104341084A (en) * | 2013-08-02 | 2015-02-11 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type dyeing sludge drying system for combined heat and power generation |
| CN107098562A (en) * | 2017-05-08 | 2017-08-29 | 苏州工业园区中法环境技术有限公司 | The thermal energy step reutilization system of two-stage sludge drying process |
| CN207362035U (en) * | 2017-10-25 | 2018-05-15 | 上海安悦节能技术有限公司 | Large and medium-sized sludge drying system based on MVR |
| CN111099810A (en) * | 2020-01-22 | 2020-05-05 | 上海仁创环境科技有限公司 | Indirect sludge drying device and method for recycling waste steam energy by heat pump |
| CN212713208U (en) * | 2020-05-25 | 2021-03-16 | 国惠环保新能源有限公司 | Sludge drying machine exhaust steam treatment system |
| CN216347662U (en) * | 2021-11-23 | 2022-04-19 | 国能龙源环保有限公司 | Material drying device with high circulating heat efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102992575B (en) | Steam thermal cycle sludge drying method and system | |
| CN105254147B (en) | A kind of sludge superheated vapor dries the triple utilization device and methods of exhaust steam residual heat | |
| CN105439404A (en) | Sludge dewatering, drying and incinerating system and method | |
| CN205313341U (en) | Sludge dewatering drying combustion system | |
| CN212222781U (en) | System for utilize flue gas or steam waste heat to carry out airtight stoving to mud | |
| CN105240859A (en) | Energy-self-supplying type chemical engineering sludge drying and burning system | |
| CN111099810A (en) | Indirect sludge drying device and method for recycling waste steam energy by heat pump | |
| CN113735409A (en) | Indirect sludge drying device and method for recycling waste steam energy by heat pump | |
| CN112624475A (en) | Zero-discharge treatment system and process for landfill leachate | |
| CN216347662U (en) | Material drying device with high circulating heat efficiency | |
| CN112707626A (en) | Sludge drying system and sludge drying method thereof | |
| CN210419688U (en) | Sludge heat drying system based on MVR evaporation | |
| CN114105438A (en) | Efficient and energy-saving material drying system and method | |
| CN212158049U (en) | Energy-saving emission-reducing filter-pressing residue drying device | |
| CN212741112U (en) | Two-stage method heat retrieval and utilization sludge drying device | |
| CN110304804B (en) | Sludge thermal conditioning and drying carbonization energy-saving system | |
| CN107218797A (en) | A kind of drying device and its application | |
| CN111377585A (en) | Negative-pressure vaporization water removal and heat recovery plate frame dehydration drying device and method | |
| CN117843213B (en) | Superheated steam drying process for sludge | |
| CN220351966U (en) | Sludge heat drying exhaust steam waste heat recovery system | |
| CN220351965U (en) | Sludge heat drying exhaust steam waste heat recovery system | |
| CN219326693U (en) | Energy-saving sludge disc drier | |
| CN218435491U (en) | Sludge drying system of waste incineration power plant | |
| CN115159810B (en) | Low-energy-consumption sludge drying system | |
| CN215250359U (en) | Sludge drying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |