CN206176948U - Matter and dry water recycle system are put forward to brown coal drying - Google Patents
Matter and dry water recycle system are put forward to brown coal drying Download PDFInfo
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- CN206176948U CN206176948U CN201621214755.2U CN201621214755U CN206176948U CN 206176948 U CN206176948 U CN 206176948U CN 201621214755 U CN201621214755 U CN 201621214755U CN 206176948 U CN206176948 U CN 206176948U
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Abstract
The utility model relates to a matter and dry water recycle system are put forward to brown coal drying has solved current brown coal drying and has put forward matter and evaporate the steam heat energy that and water waste's problem. Including desicator and pre -heater, the pre -heater includes the casing, the feed inlet is established at the casing top, and the discharge gate is established to the bottom, and upper portion is established induced air mouth, lower part and is established the air inlet, the upper segment is equipped with transversal arrangement's last heating pipe set in the casing, and the hypomere is equipped with transversal arrangement's lower heating pipe set, the air inlet through down heating pipe set, gas -liquid separation chamber, go up heating pipe set and induced air mouth intercommunication, the feed inlet of desicator is connected with the discharge gate of pre -heater, the steam export of desicator is connected through the dust remover and the air inlet of pre -heater, gas -liquid separation chamber's condensate outlet and water processing system are connected. The utility model discloses the system is simple, can effective recycling dry steam heat energy and water resource, equipment investment and running cost are low, safe and reliable.
Description
Technical field
The utility model is related to a kind of brown coal drying system, specifically a kind of brown coal drying and upgrading and is dried Water Sproading
Using system.
Background technology
In traditional brown coal drying and upgrading technique, the brown coal of high-moisture are sent directly into drier and are dried, therebetween
A large amount of more than 100 DEG C steam can be produced, these steam are difficult to back because temperature is high, complicated, the problems such as reclaim high energy consumption
Receive and utilize, can only directly be vented, lost the water resource of preciousness, while also lost the heat carried in steam (including latent heat
And sensible heat), for some regional brown coal, it is dried in water containing a small amount of pollutant (COD is higher), directly emptying is also resulted in
Water pollution and atmosphere pollution.Such as the method for the brown coal drying and upgrading of application number 201210583274.9, disclose carries out two by brown coal
Secondary drying, but it is not related to the processing method of dry steam.The synchronization of heat energy and water so far for this part steam is returned
Receive also without preferable method.
The content of the invention
The purpose of this utility model is to solve above-mentioned technical problem, there is provided a kind of simple system, can effectively reclaim dry
The heat energy and water resource of dry steam, equipment investment and operating cost are low, be easy to transformation, safe and reliable brown coal drying and upgrading and dry
Dry Water Sproading utilizes system.
The utility model system includes drier and preheater, and the preheater includes housing, the case top set into
Material mouth, bottom sets out material mouth, and top sets air-vent, bottom and sets air inlet, and epimere is provided with the upper of lateral arrangement and adds in the housing
Heat pipe bundle, hypomere is provided with the lower heating tube bundle of lateral arrangement, heating tube bundle, gas-liquid separation chamber, upper heating under the air inlet Jing
Tube bank is connected with air-vent；The charging aperture of the drier is connected with the discharging opening of preheater, the moisture outlet of the drier
Removing dust device is connected with the air inlet of drier, and the condensation-water drain of the gas-liquid separation chamber is connected with water treatment system.
Stage casing also sets the multi-row staggered baffle plate being evenly arranged in the housing, and one end of the baffle plate is collected with dirt liquid and separated
Room connects, and baffle plate collects separation chamber direction and has downward level inclination along dirt liquid, and the dirt liquid collects the clarification of separation chamber
Liquid outlet is connected with water treatment system.
The section of the plate washer is inverted V-shaped, and the angle of its inverted V-shaped is 60~140 °.
The level inclination of the baffle plate is 0.36~1.62 °.
Steam cloth air chamber is provided with the air inlet；Fixed gas collecting chamber is provided with the air-vent.
The upper and lower heating tube bundle is downward-sloping along gas flow direction, and its level inclination is 0.36~1.62 °.
Include what is obtained moisture-free coal after being dried in brown coal feeding drier and evaporate in the process of said system
Steam, the brown coal first to be sent into be re-fed into after preheating in preheater and are dried in drier, and the steam Jing that the drier is drawn is removed
Send into after dirt device dedusting in preheater be then exhausted from after brown coal indirect heat exchange, the condensate liquid of generation sends into water treatment system after collecting
Process.
The lower housing section of the preheater is provided with lower heating tube bundle, and epimere is provided with heating tube bundle, and the steam is first sent into
With brown coal indirect heat exchange in the lower heating tube bundle of preheater, then flow into upper heating tube again Jing after gas-liquid separation chamber isolates condensate liquid
It is vented after beam and the further indirect heat exchange of brown coal；Gas-liquid separation chamber goes out the condensate liquid isolated and sends into water treatment system process.
Into the brown coal 30~50wt% of water content before preheater, the brown coal water content decline 10wt% for going out preheater is left
It is right.
The stage casing of the device preheater is provided with baffle plate, and the steam produced in brown coal warm rises to condensation shape at baffle plate
Into condensed water, the condensed water flows into dirt liquid collection separation chamber along baffle plate carries out dirt liquid carries out sedimentation separation, and dirt liquid is collected and separated
Mud is discharged in room bottom, and top overflow clarified solution, the clarified solution is sent into water treatment system and processed.
For problem present in background technology, inventor has connected a preheater before drier, is entering brown coal
Enter before drying machine and first to preheat in preheater, and heat energy is then from the steam of drying machine, will the steam drawn of drying machine introduce
Indirectly heat is carried out to brown coal in preheater, on the one hand recyclable heat energy, on the other hand reclaims the condensate liquid that moisture condensation is obtained,
The condensate liquid of recovery can play the purpose of saving water resource Jing after processing as plant circulation cold water moisturizing.Meanwhile, inventor couple
Preheater has been also carried out improving, and changes route of the aqueous vapor in preheater, at utmost reclaims condensate liquid, improves equipment
Service life, reduce blocking the problems such as occur, it is specific as follows：(1) upper and lower heating tube bundle is set, steam is introduced into heating tube
Brown coal in beam to falling in housing carry out indirect preheating, and the condensate liquid produced in lower heating tube bundle warm is in gas-liquid separation
Interior separates and collects, and the condensate liquid of the generation in upper heating tube bundle warm is collected interior and separated and collected in fixed gas, realizes
The heat energy of steam and the recovery of water resource, separate the steam after condensate liquid and go successively to heating tube bundle and further change with brown coal
Heat；(2) baffle plate is set between upper and lower heating tube bundle, and the steam that brown coal are volatilized rises to the baffle plate of multi-layer intercrossed arrangement and enters
And condense, condensate liquid collects inflow dirt liquid and collects separation chamber along this baffle plate, makes pre-dried condensate liquid to be recycled profit
With, water source money is further reclaimed, mitigate environmental pollution.(3) gas-liquid separation chamber and dirt liquid collect the condensate liquid collected in separation chamber
Water treatment system can be sent into and process recovery after further process, the condensation for synchronously realizing being dried in steam using a preheater
The recovery of the condensate liquid in liquid and brown coal warm, achieves many things at one stroke, with significant technique effect.
The baffle plate is preferably inverted " v ", multi-layer intercrossed arrangement, it is ensured that brown coal particle can be passed through without blocking up
Material.All baffle plates have downward inclination angle (preferably 0.36~1.62 °) along separation chamber directions are collected, it is ensured that the drop of condensation can be with
Smoothly collect and flow into collection chamber receiving condensate.The scope of v-angle can be at 60~140 °, it is ensured that will not be because of the obstruction of two flanks
Material is caused to flow down difficulty.
Steam condensate smoothly collects cocurrent and enters gas-liquid separation in order to ensure bottom moisture condensation room and top exhaust gas chamber
Room and on-condensible gas collecting chamber, the upper and lower heating tube bundle is downward-sloping along gas flow direction, and its level inclination is 0.36
~1.62 °.
Beneficial effect：
(1) the utility model reduces factory's heat negative using the energy preheating brown coal entrained by the steam escaped in drier
Lotus (more than 45%), it is energy-saving；
(2) moisture escaped in drier is reclaimed, water resource valuable in brown coal is fully recycled, brown coal can be reclaimed
More than the 43% of middle moisture；
(3) steam that brown coal are volatilized in preheater can be reclaimed, it is to avoid brown coal are on the top of preheater because on absorbing
Rise steam and build bridge, cause brown coal particle smoothly to flow down discharge, the condensate liquid of all recovery is equal to be reclaimed Jing after processing, to ring
Border is friendly；
(4) the utility model simple system, simple process, equipment investment and operating cost it is low, safe and reliable.
Description of the drawings
Fig. 1 is the utility model system diagram.
Fig. 2 is preheater structure chart.
Fig. 3 is the A-A sectional views of Fig. 1.
Wherein, 1- housings, 2- charging apertures, 3- discharging openings, 4- gas-liquid separation chamber, 5- fixed gas collecting chambers, 6- dirt liquid is collected
Separation chamber, heating tube bundle, 10- air-vents, 11- air inlets, 12- baffle plates, 13- under 7- steam cloth air chambers, the upper heating tube bundles of 8-, 9-
Drier, 14- dedusters, 15- water treatment systems, 16- preheaters.
Specific embodiment
Below in conjunction with the accompanying drawings explanation is further explained to the utility model system：
Referring to Fig. 1, the series connection drier 13 of preheater 16, the drier 13 can be 1 or multiple stage connection in series-parallel, the drying
The charging aperture of device 13 is connected with the discharging opening of preheater 16, moisture outlet removing dust device 14 and the drier 13 of the drier 13
Air inlet connects.
The preheater 16 includes housing 1, and the top of the housing 1 sets charging aperture 2, and bottom sets out material mouth 3, and top sets air inducing
Mouth 10, bottom sets air inlet 11, and steam cloth air chamber 7 is provided with the air inlet 11；Fixed gas receipts are provided with the air-vent 10
Collection room 5.Epimere is provided with the upper heating tube bundle 8 of lateral arrangement in the housing 1, and hypomere is provided with the lower heating tube bundle 9 of lateral arrangement,
Heating tube bundle 9, gas-liquid separation chamber 4, upper heating tube bundle 8 are connected with fixed gas collecting chamber 5 under the Jing of steam cloth air chamber 7, described
Upper and lower heating tube bundle 8,9 is downward-sloping along gas flow direction, and its level inclination c is 0.36~1.62 °.The housing 1
Interior stage casing also sets the multi-row staggered baffle plate 12 being evenly arranged, and one end and the dirt liquid of the baffle plate 12 are collected separation chamber 6 and is connected, and keep off
Plate 12 collects the direction of separation chamber 6 and has a downward level inclination along dirt liquid, and the level inclination a of the baffle plate 12 is 0.36~
1.62 °, the section of the plate washer 12 is inverted V-shaped, and angle b is 60~140 °.
The gas-liquid separation chamber 4, the solidifying gas collecting chamber 5, condensate outlet of steam cloth air chamber 7 and cold dirt liquid are collected and separated
The clarified solution outlet of room 6 is connected with water treatment system 15.
Technical process：
Raw material brown coal (water content 30wt%) are continuously added in preheater 16 from charging aperture 1, are heated on the first Jing that flows downward
Tube bank 7 is exchanged heat with the steam in pipe, and then the multi-layer intercrossed arrangement baffle plates 12 of Jing are uniformly distributed, then under Jing heating tube bundle 8 and
Steam in pipe further exchanges heat, and brown coal temperature can reach 46 DEG C when reaching discharging opening 2, and water content can be down to 20wt%,
Finally continuously it is discharged into drier 13 from the bottom discharge mouth 8 of preheater 16 to be further dried to water content 7wt%.It is dry
The steam Jing moisture outlets that drying is evaporated in dry device 13 send into deduster 14 and remove the fine dust particles wherein carried secretly, so
The air inlet 11 of preheater 16 is re-fed into afterwards.
In preheater 16, the steam produced in brown coal warm is risen at the baffle plate 12 of uniform interlaced arrangement, quilt
Stop and formed the lower surface that condensate liquid is attached to baffle plate 12, the dust-laden condensate liquid that baffle plate 12 is collected flows into dirt liquid and collects separation chamber
6, dirt liquid separation is further carried out in dirt liquid collects separation chamber 6, collect condensate liquid；On the other hand, draw in drier 13
Steam (105 DEG C, 0.1MPa) enters lower heating tube bundle 9 after entering steam cloth air chamber 7 uniformly by air inlet 11 by the hypomere of housing 1
Exchange heat with the brown coal in housing 1, here undergoes phase transition condensation, discharge heat brown coal, separate subsequently into gas-liquid separation chamber 4
Condensate liquid in steam, fixed gas is further brown to preheating by the upper heating tube bundle 8 that gas-liquid separation chamber 4 enters back into the epimere of housing 1
Coal, subsequently into fixed gas collecting chamber 5 condensed water is further separated out, and fixed gas is in the presence of air-introduced machine by the row of air-vent 10
Go out, now gas temperature is (40 DEG C).
The gas-liquid separation chamber 4 and fixed gas collecting chamber 5 and the condensate liquid in steam cloth air chamber 7 can be by condensation-water drains
Discharge, dirt liquid collect separation chamber 6 in collect dust-laden condensate liquid Jing after sedimentation separation, bottom discharge mud, top overflow it is clear
The clarified liquid outlet of clear liquid is discharged, and the condensate liquid of discharge sends into reuse after water treatment system 6 is processed.The water treatment system
6 can use biological oxidation system or other existing water treatment systems suitable for industry condensation water process, this area skill
Art personnel can rationally select as needed suitable, to meet recycle-water (being such as incorporated to circulating water networking) standard.
Claims (6)
1. a kind of brown coal drying and upgrading and it is dried Water Sproading and utilizes system, including drier, it is characterised in that also includes preheating
Device, the preheater includes housing, and the case top sets charging aperture, and bottom sets out material mouth, top set air-vent, bottom set into
Gas port, epimere is provided with the upper heating tube bundle of lateral arrangement in the housing, and hypomere is provided with the lower heating tube bundle of lateral arrangement, described
Heating tube bundle, gas-liquid separation chamber, upper heating tube bundle are connected with air-vent under air inlet Jing；The charging aperture of the drier and preheating
The discharging opening connection of device, the moisture outlet removing dust device of the drier is connected with the air inlet of preheater, the gas-liquid separation
The condensation-water drain of room is connected with water treatment system.
2. brown coal drying and upgrading as claimed in claim 1 and it is dried Water Sproading and utilizes system, it is characterised in that in the housing
Stage casing also sets the multi-row staggered baffle plate being evenly arranged, and one end and the dirt liquid of the baffle plate are collected separation chamber and is connected, and baffle plate is along dirt
Liquid collects separation chamber direction and has downward level inclination, and the dirt liquid collects the clarified solution outlet of separation chamber and water treatment system
Connection.
3. brown coal drying and upgrading as claimed in claim 2 and it is dried Water Sproading and utilizes system, it is characterised in that the baffle plate
Section is inverted V-shaped, and the angle of its inverted V-shaped is 60~140 °.
4. brown coal drying and upgrading as claimed in claim 2 and it is dried Water Sproading and utilizes system, it is characterised in that the baffle plate
Level inclination is 0.36~1.62 °.
5. brown coal drying and upgrading as described in any one of claim 1-4 and it is dried Water Sproading and utilizes system, it is characterised in that institute
State and be provided with air inlet steam cloth air chamber；Fixed gas collecting chamber is provided with the air-vent.
6. brown coal drying and upgrading as claimed in claim 1 and it is dried Water Sproading and utilizes system, it is characterised in that is described upper and lower
Heating tube bundle is downward-sloping along gas flow direction, and its level inclination is 0.36~1.62 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214755.2U CN206176948U (en) | 2016-11-11 | 2016-11-11 | Matter and dry water recycle system are put forward to brown coal drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621214755.2U CN206176948U (en) | 2016-11-11 | 2016-11-11 | Matter and dry water recycle system are put forward to brown coal drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206176948U true CN206176948U (en) | 2017-05-17 |
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ID=58684588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621214755.2U Active CN206176948U (en) | 2016-11-11 | 2016-11-11 | Matter and dry water recycle system are put forward to brown coal drying |
Country Status (1)
| Country | Link |
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| CN (1) | CN206176948U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766828A (en) * | 2016-11-11 | 2017-05-31 | 中国五环工程有限公司 | Brown coal drying and upgrading and Water Sproading is dried using technique and its system |
| CN109405521A (en) * | 2018-11-16 | 2019-03-01 | 铜陵启汇新型能源有限公司 | A kind of sawdust secondary drying device |
-
2016
- 2016-11-11 CN CN201621214755.2U patent/CN206176948U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766828A (en) * | 2016-11-11 | 2017-05-31 | 中国五环工程有限公司 | Brown coal drying and upgrading and Water Sproading is dried using technique and its system |
| CN109405521A (en) * | 2018-11-16 | 2019-03-01 | 铜陵启汇新型能源有限公司 | A kind of sawdust secondary drying device |
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