CN204007002U - A kind of wet stock drying unit - Google Patents
A kind of wet stock drying unit Download PDFInfo
- Publication number
- CN204007002U CN204007002U CN201420412584.9U CN201420412584U CN204007002U CN 204007002 U CN204007002 U CN 204007002U CN 201420412584 U CN201420412584 U CN 201420412584U CN 204007002 U CN204007002 U CN 204007002U
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- China
- Prior art keywords
- swing roller
- flue gas
- furnace
- smoke box
- rotating drum
- 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.)
- Expired - Lifetime
Links
- 238000001035 drying Methods 0.000 title claims abstract description 40
- 239000000779 smoke Substances 0.000 claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 25
- 239000003546 flue gas Substances 0.000 abstract description 25
- 239000007789 gas Substances 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 238000005728 strengthening Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 31
- 239000004568 cement Substances 0.000 description 8
- 238000009958 sewing Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 230000002411 adverse Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 239000003250 coal slurry Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000002036 drum drying Methods 0.000 description 2
- 230000003031 feeding effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
本实用新型提供了一种湿物料烘干装置，包括旋转滚筒装置、控制燃烧装置、脱硫除尘装置和基座；所述的控制燃烧装置包括多个炉膛、炉排、灰坑、烟箱和烟气管道，分段设置在旋转滚筒的外部；炉膛设置在旋转滚筒的正下方，炉膛的火焰直接加热旋转滚筒；所述的炉膛的上方，旋转滚筒的外部设置拱形烟箱，烟箱顶端设有烟气出口，旋转滚筒出料端设有烟气入口，烟气出口和烟气入口通过烟气管道连通。本实用新型烘干装置将加热室设置在炉体的下方，采用分段燃烧加热，且燃烧产生的烟气集中后从旋转炉的出料端采用逆流的方式进入旋转炉的内部，采用旋转炉内外强化，更有效的控制烘干筒内的温度，提高了能量利用率，避免了能源的浪费。
The utility model provides a wet material drying device, which comprises a rotary drum device, a control combustion device, a desulfurization and dust removal device and a base; the control combustion device includes a plurality of furnaces, grates, ash pits, smoke boxes and The gas pipeline is arranged on the outside of the rotating drum in sections; the furnace is arranged directly below the rotating drum, and the flame of the furnace directly heats the rotating drum; above the furnace, an arched smoke box is arranged outside the rotating drum, and the top of the smoke box is set There is a flue gas outlet, and a flue gas inlet is provided at the discharge end of the rotating drum, and the flue gas outlet and flue gas inlet are connected through a flue gas pipe. The drying device of the utility model arranges the heating chamber under the furnace body, adopts segmental combustion heating, and the flue gas generated by the combustion is concentrated and enters the interior of the rotary furnace in a countercurrent manner from the discharge end of the rotary furnace. Internal and external strengthening, more effective control of the temperature in the drying cylinder, improved energy utilization, and avoided energy waste.
Description
Technical field:
The utility model relates to drying unit, and particularly a kind of wet stock drying unit, is applicable to the dry of the wet stocks such as coal slime, mud.
Background technology:
At present, more and more stricter along with environmental requirement, the washing scale of coal slime continues to increase, sewage disposal scale is also strengthening, coal slime, sludge yield are increasing, but because coal slime, moisture percentage in sewage sludge are up to more than 20%, and coal slime, mud fine size, viscosity are large, moisture is difficult to separation, the dry of the wet stock such as coal slime, mud is the important step of its utilization, a kind of drying capacity of research and development design is large, the thermal efficiency is high, the coal slurry drying-machine of good drying effect, and making full use of of its resource had to realistic meaning.
At present the drying plant of wet stock has pond formula, tunnel type, vertical and drum-type dry kiln etc.Pond formula dry kiln heat utilization efficiency is low, and tunnel drying oven yields poorly, equipment investment is high, and vertical dry kiln heat energy utilization is low, is difficult to meet a large amount of wet stock drying requirement.Swinging drying kiln is compared with above drying plant, has treating capacity large, and the time is short, and operating flexibility is large, the feature such as turn round reliable, and inner barrel is equipped with flight, is suitable for wet stock and dries.As: CN:201220070093.1 coal slurry rotary drum drying machine, its inner core is sleeved in urceolus, is divided into successively from front to back scraper preheating section, cleaning evaporator section, reduction stage, intensification evaporator section, discharging section on the inwall of urceolus.Transmission device drives barrel body rotation, each section that is installed on inner barrel under the rotation of cylindrical shell with wet coal slime effect, coal slime is broken up, is kicked up, unrestrainedly fully contacts with the flue gas of passing through in cylindrical shell, heat exchange, be dried.CN:201120498662.8 Novel coal slime cylinder drier, it is welded with above roller tube and runs band and gear ring, feed end is provided with feed end sealing device, and discharge end is provided with discharge end sealing device, and feed end inside is provided with spiral propeller feed arrangement.Roller tube rotates under the effect of transmission device, hot blast enters in roller tube, and material drops on spiral propeller feed arrangement by feed end, in the rotating process of roller tube, hot blast is discharged from the hot-blast outlet of discharge end termination, completes drying course.This patent has fundamentally solved the series of technical such as the driving chain producing in running is loose, the material that leaks out, putty, stuck, sticky wall.However: these patents are all to adopt by fuel the front end combustion chambers burn at stove, produce flue gas, then flue gas are passed in revolving burner, make flue gas and coal slime direct heat transfer, only solve used equipment structure outmoded, coal slime is difficult to feed in raw material, and sticks, the problems such as input and output material, strengthened gas-solid contact area, extended two heat-exchange times, more original device has improved drying efficiency, but it is low to exist drying efficiency, for wet stock on a large scale, fast, efficiently process problem continuously and be not also resolved.
Utility model content:
The purpose of this utility model is that particle is thin, viscosity is large for wet stock (coal slime, mud), and existing treatment facility heat utilization efficiency is low, and the little deficiency that waits of unit disposal ability, provides a kind of new and effective wet stock drying unit.
The utility model is from wet stock characteristics such as coal slime, mud, consider the difficult point of practical operation, rotary furnace drying stove for current employing is all the front end combustion chambers burn at stove by fuel, produce flue gas, then flue gas is passed in revolving burner, make flue gas and coal slime direct heat transfer, there is the shortcomings such as the thermal efficiency is low, capacity usage ratio is low, for drying oven flue gas and coal slime, be difficult to mix, form the problems such as sticky wall, coal slime drying oven is carried out to OVERALL OPTIMIZA-TION DESIGN FOR simultaneously.For drying oven flue gas and coal slime, be difficult to mix, form the problems such as sticky wall, this is improved, the utility model is arranged on control combustion device the below of swing roller, adopts sectional combustion heating.Discharge end from swing roller after the fume centralized that burning produces adopts the mode of adverse current to enter the inside of swing roller, adopt inside and outside strengthening, heat stepwise mode, temperature in the more effective control swing roller of energy, has improved capacity usage ratio, has avoided the waste of the energy.
A kind of wet stock drying unit that the utility model provides, comprises swing roller device, control combustion device, desulfation dust-extraction device, pedestal etc.; Described swing roller device comprises swing roller and transmission device, and the inwall of described swing roller arranges a plurality of L-type water conservancy diversion steel plates, and outer surface is provided with a plurality of radially steel plates; Described transmission device comprises 2-3 idler pulley circle and 1 gear ring, is arranged on swing roller outer surface;
Described control combustion device comprises a plurality of burner hearths, fire grate and ashcan, a plurality of smoke boxes; Their subsection setups are in the outside of swing roller; Burner hearth be arranged on swing roller under, the flame of burner hearth directly heats swing roller;
Described smoke box is arch smoke box, is arranged on the top of burner hearth, the outside of swing roller, and smoke box top is provided with exhanst gas outlet, and the discharge end of swing roller is provided with smoke inlet, and exhanst gas outlet and smoke inlet are communicated with by flue.The flue gas that burner hearth produces rises from the smoke box of swing roller both sides, by exhanst gas outlet, enter flue, from the discharge end middle and lower part of swing roller, enter swing roller again, carry out forced convective heat transfer of flue with moisture coal slime adverse current, the flue gas after heat exchange enters atmosphere through desulfation dust-extraction device;
A plurality of L-type water conservancy diversion steel plates that swing roller inwall is installed, play stirring, feeding effect; Swing roller outer surface is provided with a plurality of radially steel plates, plays lacing wire effect, prevents the cylindrical shell distortion that directly heating causes, plays conduction of heat, improves drying efficiency.
Wet stock drying unit adopts two kinds of heat transfer type strengthenings of conduction and convection dry simultaneously, the wet stock moisture that enters swing roller is evaporated very soon, the steam forming leaves swing roller wall fast, overcome the phenomenon of the sticky wall of wet stock, also increased the contact area of wet stock and air simultaneously, the hammering having saved in original revolving burner connects, and has reduced the vibration of swing roller, makes drying unit operation more stable.
Advantage of the present utility model is as follows:
The utility model is from wet stock characteristics such as coal slime, mud, consider the difficult point of practical operation, rotary furnace drying stove for current employing is all the front end combustion chambers burn at stove by fuel, produce flue gas, then flue gas is passed in revolving burner, make flue gas and coal slime direct heat transfer, the shortcoming such as the thermal efficiency of existence is low, chimney dispersed heat is large, capacity usage ratio is low, carries out OVERALL OPTIMIZA-TION DESIGN FOR to coal slurry drying-machine.For drying machine flue gas and coal slime, be difficult to mix, form the problems such as sticky wall, this is improved, this design is arranged on heating clamber the below of body of heater, adopts sectional combustion heating.Discharge end from revolving burner after the fume centralized that burning produces adopts the mode of adverse current to enter the inside of revolving burner, adopt the inside and outside strengthening of revolving burner, heat stepwise mode, temperature in the more effective control Drying of energy, has improved capacity usage ratio, has avoided the waste of the energy.
Accompanying drawing explanation:
Fig. 1 is the structural representation (front view) of the utility model wet stock drying unit
Fig. 2 is the generalized section (left view) of the smoke box position of wet stock drying unit shown in Fig. 1
In figure: charging aperture 1, swing roller 2, the first idler pulley circle 3, the second idler pulley circle 4, gear ring 5, the 3rd idler pulley circle 6, discharge port 7, the first cement sewing platform base 8, the second cement sewing platform base 9, the 3rd cement sewing platform base 10, the 4th cement sewing platform base 11, the first burner hearth 12, the second burner hearth 13, the 3rd burner hearth 14, the 4th burner hearth 15, the 5th burner hearth 16, the 6th burner hearth 17, ashcan 18, fire grate 19, refractory brick partition wall 20, fire-resistant rock wool 21, insulating brick 22, mouth 23 mends the fire, fire-resisting beam 24, 25 flues, the first smoke box 26, the second smoke box 27, the 3rd smoke box 28, cyclone dust collector 29, L-type water conservancy diversion steel plate 30, radially steel plate 31.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of wet stock drying unit as shown in Figure 1-2, comprises swing roller device, control combustion device, desulfation dust-extraction device, pedestal etc.; Described swing roller device comprises swing roller 2 and transmission device, and the inwall of described swing roller arranges a plurality of L-type water conservancy diversion steel plates 30, and outer surface is provided with a plurality of radially steel plates 31; Described transmission device comprises the first idler pulley circle 3, the second idler pulley circle 4, the 3rd idler pulley circle 6 and gear ring 5, is arranged on swing roller 2 outer surfaces;
Control combustion device comprises the first burner hearth 12, the second burner hearth 13, the 3rd burner hearth 14, the 4th burner hearth 15, the 5th burner hearth 16, the 6th burner hearth 17, the first smoke box 26, the second smoke box 27, the 3rd smoke box 28, flue 25, fire grate 19 and ashcan 18, and their subsection setups are in the outside of swing roller 2; Described burner hearth be arranged on swing roller 2 under, the flame of burner hearth directly heats swing roller 2;
Above burner hearth, the outer setting arch smoke box of swing roller 2, smoke box top is provided with exhanst gas outlet, and the discharge end of swing roller 2 is provided with smoke inlet, and exhanst gas outlet and smoke inlet are communicated with by flue 25; The flue gas that burner hearth produces rises from the smoke box of swing roller 2 both sides, by exhanst gas outlet, enter flue 25, from the discharge end middle and lower part of swing roller, enter swing roller 2 again, carry out forced convective heat transfer of flue with moisture coal slime adverse current, the flue gas after heat exchange enters atmosphere through desulfation dust-extraction device 29;
A plurality of L-type water conservancy diversion steel plates 30 that swing roller 2 inwalls are installed, L-type water conservancy diversion steel plate plays stirring, feeding effect; Swing roller 2 outer surfaces are provided with a plurality of radially steel plates 31, play lacing wire effect, prevent the cylindrical shell distortion that directly heating causes, play conduction of heat, improve drying efficiency.
The first cement sewing platform base 8, the second cement sewing platform base 9, the 3rd cement sewing platform base 10 and the 4th cement sewing platform base 11 support the first smoke box 26, the second smoke box 27 and the 3rd smoke box 28, and place and walk charge bank degree 3-5 ° at an angle.Each burner hearth bottom is provided with ashcan, and burner hearth is built by fire-resistant wall brick, is provided with fire-resistant rock wool between each burner hearth.Between the two edges of swing roller 2 and each arch smoke box, be provided with abrasion-proof and refractory sealing ring, in order to prevent that flue gas from leaking.
Wet stock drying unit operation principle and process:
Wet stock is entered in swing roller by deflector chute by charging aperture 1, under L-type water conservancy diversion steel plate 30 drives, wet stock rolls and enters the front end (the first smoke box section) of cylindrical shell, this section is one-level baking zone, temperature be 400 ℃ under high wet condition, remove most of moisture, and contact with high-temperature hot-air, moisture evaporates rapidly, do not treat that coal slime is bonded on barrel, to be just directed to next bringing-up section; Wet stock enters the second smoke box section, and this section is secondary baking zone, and approximately 300 ℃ of temperature, dewater by the powerful air inducing of middle temperature, guarantee not coking of brown coal; The 3rd smoke box Duan Weisan level baking zone, temperature is 120 ℃-200 ℃, at this moment utilizes device in cylinder, repeatedly clashes into and breaks up material, guarantees the effusion of moisture in block coal slime; Wet stock enters the rear end of cylindrical shell, is level Four baking zone, 80 ℃-120 ℃ of temperature, and the Low Temperature Thermal air-flow that is negative pressure by induced draught system is got rid of moisture content, with high exhaust, takes residual moisture out of; Last wet stock is at cooling section, and temperature drops to 40 ℃-60 ℃, does not burn guaranteeing after coal slime discharging, finally from discharge port 7, discharges.Burner hearth produce flue gas both sides in smoke box from cylindrical shell rise, by outlet, enter flue 25; The other end of flue 25 communicates with rotating cylinder end middle and lower part, after the fume centralized that burning produces, adopts the mode of adverse current to enter the inside of drying, carries out forced convective heat transfer of flue with moisture coal slime in cylinder inside, for wet stock dry provides other thermal source.
2.4 meters of the utility model wet stock drying unit diameters,, walk charge bank degree 3-5 ° by long 20 meters.First combustion preheater drying unit during use, when device front-end temperature to be dried reaches 200-300 ℃, starting to add is wet stock coal slime, when reinforced, drying unit control rotating speed is 5-6r/min.Coal slime humidity is 20% left and right, and charging rate is 300-400KG/min, and coal slime time of staying in swing roller is 15-20min, discharging humidity 8% left and right, and drop temperature is 60 ℃, compares Reducing Coal Consumption 32% left and right with traditional coal slurry rotary drum drying machine.
The fuel that the utility model wet stock drying unit adopts can be the various gaseous fuels such as the various solid fuels such as coal, biomass carbon and coal gas, natural gas, raw coke oven gas, dry distillation gas.
Claims (1)
1. a wet stock drying unit, comprises swing roller device, control combustion device, desulfation dust-extraction device, pedestal; It is characterized in that:
Described swing roller device comprises swing roller (2) and transmission device; The inwall of described swing roller (2) arranges a plurality of L-type water conservancy diversion steel plates (30), and the outer surface of swing roller (2) is provided with a plurality of radially steel plates (31); Described transmission device comprises 2-3 idler pulley circle and 1 gear ring (5), is arranged on the outer surface of swing roller (2);
Described control combustion device comprises a plurality of burner hearths, fire grate (19) and ashcan (18), a plurality of smoke boxes; Their subsection setups are in the outside of swing roller (2); Burner hearth be arranged on swing roller (2) under, the flame of burner hearth directly heats swing roller (2);
Described smoke box is arch smoke box, be arranged on the top of burner hearth, the outside of swing roller (2), smoke box top is provided with exhanst gas outlet, the discharge end of swing roller (2) is provided with smoke inlet, and exhanst gas outlet and smoke inlet are communicated with by flue (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412584.9U CN204007002U (en) | 2014-07-24 | 2014-07-24 | A kind of wet stock drying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420412584.9U CN204007002U (en) | 2014-07-24 | 2014-07-24 | A kind of wet stock drying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007002U true CN204007002U (en) | 2014-12-10 |
Family
ID=52046991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420412584.9U Expired - Lifetime CN204007002U (en) | 2014-07-24 | 2014-07-24 | A kind of wet stock drying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110950A (en) * | 2014-07-24 | 2014-10-22 | 山西大学 | Wet material drying device |
| CN112325630A (en) * | 2020-11-30 | 2021-02-05 | 平顶山市天宝特种材料有限公司 | Combined fine chemical roasting method |
-
2014
- 2014-07-24 CN CN201420412584.9U patent/CN204007002U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110950A (en) * | 2014-07-24 | 2014-10-22 | 山西大学 | Wet material drying device |
| CN104110950B (en) * | 2014-07-24 | 2015-12-30 | 山西大学 | A kind of wet stock drying unit |
| CN112325630A (en) * | 2020-11-30 | 2021-02-05 | 平顶山市天宝特种材料有限公司 | Combined fine chemical roasting method |
| CN112325630B (en) * | 2020-11-30 | 2022-08-16 | 平顶山市天宝特种材料有限公司 | Combined fine chemical roasting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |