CN109945175A - A kind of tandem barrel slag cooler unit effectively adjusted according to actual condition demand - Google Patents
A kind of tandem barrel slag cooler unit effectively adjusted according to actual condition demand Download PDFInfo
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- CN109945175A CN109945175A CN201910322011.4A CN201910322011A CN109945175A CN 109945175 A CN109945175 A CN 109945175A CN 201910322011 A CN201910322011 A CN 201910322011A CN 109945175 A CN109945175 A CN 109945175A
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- slag
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- 239000002893 slag Substances 0.000 title claims abstract description 89
- 239000000498 cooling water Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 abstract description 15
- 239000002918 waste heat Substances 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of tandem barrel slag cooler units effectively adjusted according to actual condition demand, including cold slag machine drum body that is fixed by the series connection of multiple groups roller unit and being connected by pipeline；Single group roller unit by cylinder, enter water water pipe and cold slag tube forms；It passes through in the middle part of the cylinder into water water pipe, cylinder is circumferentially uniformly provided with cold slag tube；Cylinder is divided into left and right cooling water cavity by middle tube sheet, and left and right cooling water cavity passes through the multiple water flowing holes being arranged on middle tube sheet and is connected；It is described enter water water pipe water outlet be connected by pipeline with left cooling water cavity.The present invention according to actual condition demand neatly tandem compound roller unit, can realize to the maximum extent the waste heat recycling of clinker；Hexagonal prisms cold slag tube can reduce abrasion of the clinker to equipment while increasing heat transfer efficiency.It is convenient for disassembly and assembly to the adaptable of various operating conditions, be conducive to the heat transfer rate for improving fluidized-bed combustion boiler, lower production run cost.
Description
Technical field
The present invention relates to industrial energy saving equipment technical fields, are carried out effectively more particularly, to a kind of according to actual condition demand
The tandem barrel slag cooler unit of adjustment.
Background technique
Lag cooler is the important ancillary equipment of recirculating fluidized bed (CFB), is had to the recycling of waste heat in clinker important
Effect.Currently, the type of lag cooler mainly has air-cooled, water cold drum formula and wind and water combined formula.The most commonly used is geomantic omens for the country
Association type and water cold drum formula lag cooler.Water cold drum formula lag cooler can be divided into multitube, film tube type, three type of jacket type again
Type.For various types of lag coolers due to its structure difference, various aspects of performance difference is also larger.
Multitube water cooling cold cinder machine is at low cost, and energy consumption is small, and cooling capacity is good, and maintenance is simple, the circulation to have put into operation at present
95% or more fluidized-bed combustion boiler has used water-cooled barrel slag cooler.Water cold drum formula lag cooler utilizes cooling water cooling furnace
Slag recycles the waste heat in clinker, but in the process of work, cooling water connects multiple pipe type cold slag machine on the market with tube wall at present
Contacting surface product is small, and rate of heat exchange is not high, and utilization rate of waste heat is lower；Meanwhile lag cooler on the market all uses unitary design at present,
The length of lag cooler cannot be freely combined according to actual condition, it is greatly inconvenient also to come to conveyer belt.
By taking the barrel slag cooler of Liaocheng City Machinery Co., Ltd. production as an example, illustrate present barrel slag cooler on the market
Main specifications.The specification of the barrel slag cooler of the said firm have GTL8C3 × L, GTL8C4 × L, GTL10C6 × L, GTL10C8 × L,
In GTL10C10 × L five, the specification of the lag cooler of every kind of model is certain, once but operating condition change or existing
Lag cooler specification is not suitable for existing operating condition, and existing lag cooler is just no longer appropriate for using will be to actual very big using bring
Trouble.On the other hand, integral type lag cooler is inconvenient to the maintenance inside lag cooler during Maintenance and Repair usually.
Summary of the invention
In order to overcome above-mentioned existing technological deficiency, the purpose of the present invention is to provide one kind can be according to actual condition need
Ask neatly tandem compound roller unit, easy disassembly maintenance；The number for increasing lime-ash and tube wall collision improves the cold slag of tradition
The problem of machine cylinder quick abrasion, increase heat transfer efficiency；It is equivalent to increase the heat exchange area of cold slag tube and cooling water, to increase
Rate of heat exchange realizes the tandem barrel slag cooler unit of the waste heat recycling of clinker to the maximum extent.
In order to achieve the above object, the invention is realized by the following technical scheme:
The technical program is a kind of tandem barrel slag cooler unit effectively adjusted according to actual condition demand, packet
Include cold slag machine drum body that is fixed by the series connection of multiple groups roller unit and being connected by pipeline；Single group roller unit by cylinder, enter water
Water pipe and cold slag tube composition；It passes through in the middle part of the cylinder into water water pipe, cylinder is circumferentially uniformly provided with cold slag tube；Cylinder passes through middle pipe
Plate is divided into left and right cooling water cavity, and left and right cooling water cavity passes through the multiple water flowing holes being arranged on middle tube sheet and is connected；It is described
Enter water water pipe water outlet and is connected by pipeline with left cooling water cavity.
As optimization, the cross section of the cold slag tube is hexagonal prisms structure, increases the number of lime-ash and tube wall collision, increases
Add heat transfer efficiency, meanwhile, the problem of improving traditional slag cooler roller quick abrasion.
As optimization, the cold slag tube inner wall is equipped with multiple groups fin, equivalent to increase the heat exchange of cold slag tube and cooling water
Area, to increase rate of heat exchange.
As optimization, by the concaveconvex structure alignment being arranged in body end surface between two adjacent series cylinder units, together
When be bolted；It is described enter water water pipe water outlet connect water tank, by water tank respectively with cylinder up and down be connected to；Adjacent two
It is connected between roller unit by U-tube.
Compared with prior art, the beneficial effects of the present invention are:
The present invention can realize to the maximum extent the remaining of clinker according to actual condition demand neatly tandem compound roller unit
Recuperation of heat；The use of hexagonal prisms cold slag tube can reduce abrasion of the clinker to equipment while increasing heat transfer efficiency, to cold slag
The coke blockage problem that machine easily occurs is greatly improved.The present invention is adaptable to various operating conditions, convenient for disassembly and assembly, favorably
Acquisition cost is repeated in reducing production equipment, and the present invention is conducive to improve the heat transfer rate of fluidized-bed combustion boiler, lowers production
Operating cost.
1, cold slag machine drum body can be easy for installation and removal using being formed by multiple groups roller unit tandem compound, solve biography
Entity formula barrel slag cooler improves the versatility of lag cooler, while also conveniently tearing open to the problem of various operating condition adaptive faculty differences
Unload maintenance；Using the cylinder of tandem compound, since can combined roller number be needed by unrestricted choice according to actual needs, so as to
The heat-exchange time of enough working the slag and cooling water according to actual needs can be to the maximum extent compared to conventional rollers lag cooler
Realize the waste heat recycling of clinker.
2, the compartmentalized design of roller unit or so cooling water cavity, so that cold slag tube outside wall surface and cooling water contact area increase
Greatly, the eddy current effect generated in combination with cooling water at water flowing hole on by middle tube sheet so that the heat transfer rate of lag cooler and
Utilization rate of waste heat is all improved.
3, cold slag tube uses section for the design of hexagonal prisms, and according to the characteristic of polygon, high-temperature ash is entering six ribs
When in cylindricality cold slag tube, under polygon prism effect, lime-ash can only roll inside cold slag tube, and cannot slide, with tradition
Cylinder-shaped cold slag tube compares the number for increasing lime-ash and tube wall collision, largely improves the abrasion of traditional slag cooler roller
Fast problem, compared to also increasing heat transfer efficiency on the basis of traditional slag cooler.Design has " wing on cold slag tube inner wall
Piece ", it is equivalent to increase the heat exchange area of cold slag tube and cooling water, to increase rate of heat exchange.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is half section structure diagram of the invention；
Fig. 2 is the complete section structural schematic diagram of single group roller unit in the present invention；
Fig. 3 is the partial enlargement structural representation in the portion A in Fig. 1, i.e., the fixed interconnecting piece of adjacent two roller units series connection
Structural schematic diagram；
Fig. 4 is the cross-sectional structure schematic diagram of single cold slag tube in the present invention；
Fig. 5 is cold slag tube and to enter arragement construction schematic diagram of the water water pipe in cylinder in the present invention；
Fig. 6 is the use structural schematic diagram that apparatus of the present invention are arranged on lag cooler；
Fig. 7 is present invention cooling water and clinker axial temperature change curve in use.
Marked in the figure: cylinder 1, enters water water pipe 2, cold slag tube 3, middle tube sheet 4, water flowing hole 5, water tank 6, U-tube 7.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1, as shown in Figure 1, Figure 2 and shown in Fig. 6, the present invention is effectively adjusted to be a kind of according to actual condition demand
Tandem barrel slag cooler unit, including being connected cold slag machine drum that is fixed and being connected by pipeline by multiple groups roller unit
Body；Cold slag machine drum body is connected by roller unit more than two and is fixed；Single group roller unit by cylinder 1, enter water water pipe 2 and cold slag
Pipe 3 forms；It is passed through in the middle part of the cylinder 1 into water water pipe 2, cylinder 1 is circumferential to be uniformly provided with cold slag tube 3；Cylinder 1 passes through middle tube sheet 4
It is divided into left and right cooling water cavity, left and right cooling water cavity passes through the multiple water flowing holes 5 being arranged on middle tube sheet 4 and is connected；It is described
Enter 2 water outlet of water water pipe and is connected by pipeline with left cooling water cavity.
Cold slag tube 3 is installed in the cold slag tube hole in cylinder 1, the both ends of cold slag tube 3 respectively with the front tube sheet of cylinder 1 and after
Tube-sheet Welding is together；Enter in the water inlet pipe hole that water water pipe 2 is installed in cylinder 1, length is depending on barrel lenght.Such as Fig. 5
Shown in, 12 groups of cold slag tubes are equipped in each series cylinder unit, two layers of the arrangement point of cold slag tube, outer layer is 8 groups uniformly distributed, and internal layer is uniformly distributed
4 groups；Every series cylinder unit axis position is set into water water pipe 2.Single group roller unit middle cylinder body is by front tube sheet, middle tube sheet, rear pipe
Plate and canister unit wall surface surround, and design has flow of cooling water hole, left and right cooling water of the Cooling Water in cylinder on middle tube sheet
It is flowed in chamber, cylinder compartmentalized design is increased the heat-exchange time of cooling water and cold slag tube by middle tube sheet, improves heat exchange efficiency；?
Design has the identical water flowing hole of 4 sizes on middle tube sheet 4, flows cooling water energy between two cooling water cavities of left and right；Work as cooling
When water flows through water flowing hole, due to the mutation of cross-sectional flow area, so that water speed increases, pressure reduces, and promotes cooling water herein
Place forms vortex, increases the contact surface of cooling water and cold slag tube, to effectively improve the heat transfer rate and utilization rate of waste heat of lag cooler.
Driving device realizes the electrodeless variable-speed to cold slag machine drum body, the size of bed drain purge and turning for lag cooler by frequency converter
Fast size positive correlation, by controlling the velocity of rotation of cold slag machine drum body, so that bed drain purge is electrodeless adjustable, to control cold
The deslagging speed of slag machine, as much as possible the raising coefficient of overall heat transmission.Clinker enters 1 cold slag tube 3 of cylinder of roller unit by slag feeding device
In.Under external driver device effect, cylinder is slowly rotated, since cold slag machine drum body installation has certain angle, cylinder installation
When need to be tilted a certain angle, generally 10 °~20 °, clinker is in self gravity and the frictional force generated with cylinder wall surface collision
Under effect, rotary spreading is done along 3 wall surface of cold slag tube and is moved, is moved gradually downward.In the process of movement, clinker passes heat
Cold slag tube wall is passed, then passes to cylinder or so the cooling water passed through in cooling water cavity, realizes the UTILIZATION OF VESIDUAL HEAT IN of clinker.Cooling water
By entering water water pipe 2, from the left cooling water cavity that the water outlet for entering water water pipe 2 enters first order roller unit, left cooling water cavity
Middle water is entered in right cooling water cavity by the water flowing hole on middle tube sheet 4, realizes that cooling water flows in the left and right water cavity of cylinder 1
It is dynamic, then the pipeline by connecting adjacent cooling water cavity in every series cylinder unit, it flows into the cooling water cavity of next stage roller unit,
It so flows from front to back, realizes flowing of the cooling water in entire cold slag machine drum body, finally flowed out from water outlet.Cooling water exists
It during being flowed in the cylinder of every series cylinder unit, is contacted with cold slag tube wall, realizes the heat exchange with clinker.
If the specific heat of clinker not variation with temperature and change, then the thermal efficiency of serial combination type barrel slag cooler can be with table
It is shown as:Wherein, T1Indicate the temperature of warm sludge；T2Indicate the temperature of cold slag；T3Indicate the temperature at cooling water outlet end
Degree；T4Indicate the temperature at cooling water inlet end.It is calculated further according to data measured in Heat Transfer Simulation experiment, for by 8 groups of rollings
The heat transfer efficiency for the lag cooler that cylinder unit is connected in series is 84%, and the traditional slag cooler compared to identical cold slag ability improves
5%.After obtaining the lag cooler thermal efficiency, adjoint utilization rate of waste heat can then be indicated therewith are as follows:Its
In, Q0Epitope import clinker institute heat content；Q1Indicate outlet end cooling water institute heat content；Q2Indicate outlet clinker institute heat content；Q3
Indicate import cooling water institute heat content.The utilization rate of waste heat that the lag cooler being connected in series by 8 series cylinder units is calculated is
28.7%.The lag cooler is measured in the case where revolving speed is 5r/s by sunykatuib analysis experiment, flows through cooling water inflow per hour about
For 4.75t, while the data tested by Heat Transfer Simulation and lag cooler heat exchange efficiency of the present invention is calculated is 84%, phase
Than improving 5% or so in the traditional slag cooler heat exchange efficiency of identical cold slag ability, utilization rate of waste heat 28.7%.
More than, it is real by the Heat Transfer Simulation of high temperature furnace slag and cooling water in the lag cooler that is connected in series to 8 series cylinder units
The temperature variation curve of resulting clinker and cooling water is tested it is found that as shown in fig. 7, clinker is left from (about 1000 DEG C) of entrance 1273K
The right side gradually cools to (about 135 DEG C) of outlet end 408K Zuo You, and temperature is basically unchanged, and reaches equilibrium state；Equally, cooling water from into
(about 30 DEG C) of 303K Zuo You of mouth is gradually warmed up (about 76 DEG C) of 350K Zuo You of outlet, and temperature no longer increases, and reaches balance.According to mould
Draft experiment result is it is found that lag cooler of the present invention is more satisfactory to the cooling effect of Fluidized Bed Boiler clinker, in 8 series cylinder lists of selection
When the lag cooler that member is connected in series, with the reduction of clinker and cooling range, in the rear stage of lag cooler, the cooling effect of clinker
Fruit decline, therefore the present invention combines the general Application Range of tandem barrel slag cooler in 8~10 series cylinder units.
Embodiment 2, as shown in Figure 4, the cross section of cold slag tube 3 is hexagonal prisms structure, according to the characteristic of polygon, high temperature
Lime-ash is when entering in hexagon cold slag tube, since in the case where polygon prism acts on, lime-ash can only roll inside cold slag tube
It is dynamic, and cannot slide, the number of lime-ash and tube wall collision is increased compared with traditional round tubular cold slag tube, increases heat transfer effect
Rate, while the problem of largely improve traditional slag cooler roller quick abrasion.3 inner wall of cold slag tube is equipped with multiple groups wing
Piece increases the heat exchange area of cold slag tube 3 Yu cooling water, so that rate of heat exchange is effectively increased, so that clinker is transported in cold slag tube
When dynamic, clinker does projectile motion, rather than slides, and increases the shock number of clinker and wall surface, it is also possible to greatly increase
The heat exchange area of clinker and cooling water increases heat transfer rate.
Embodiment 3, as shown in Figure 3, the bumps between two adjacent series cylinder units by being arranged on 1 end face of cylinder
Structure alignment is bolted simultaneously；It is described enter water water pipe 2 water outlet connect water tank 6, by water tank 6 respectively with cylinder 1
Connection up and down；It is connected between adjacent two roller unit by U-tube 7.Between adjacent two roller unit by trapezoid boss and
Groove is coupled positioning, engaging lug is arranged on cylinder body outer wall face, and be bolted and fixed.Enter the water outlet of water water pipe 2
End is connected and installed with water tank, and the water outlet of water tank is connected with the upper and lower two sides outside wall surface of cylinder by U-tube, flange and rubber seal
Circle, is bolted to connection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of tandem barrel slag cooler unit effectively adjusted according to actual condition demand, it is characterised in that: including
Cold slag machine drum body that is fixed by the series connection of multiple groups roller unit and being connected by pipeline；
Single group roller unit by cylinder (1), enter water water pipe (2) and cold slag tube (3) forms；It passes through in the middle part of the cylinder (1) into water
Water pipe (2), cylinder (1) are circumferentially uniformly provided with cold slag tube (3)；Cylinder (1) is divided into left and right cooling water cavity by middle tube sheet (4),
Left and right cooling water cavity is connected by the multiple water flowing holes (5) being arranged on middle tube sheet (4)；It is described enter water water pipe (2) water outlet
End is connected by pipeline with left cooling water cavity.
2. a kind of tandem barrel slag cooler list effectively adjusted according to actual condition demand according to claim 1
Member, it is characterised in that: the cross section of the cold slag tube (3) is hexagonal prisms structure.
3. a kind of tandem drum slag cooling effectively adjusted according to actual condition demand according to claim 1 or 2
Machine unit, it is characterised in that: cold slag tube (3) inner wall is equipped with multiple groups fin.
4. a kind of tandem barrel slag cooler list effectively adjusted according to actual condition demand according to claim 1
Member, it is characterised in that: by the concaveconvex structure alignment being arranged on cylinder (1) end face between two adjacent series cylinder units, together
When be bolted；
It is described enter water water pipe (2) water outlet connect water tank (6), be connected to up and down with cylinder (1) respectively by water tank (6)；It is adjacent
It is connected between two roller units by U-tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322011.4A CN109945175B (en) | 2019-04-22 | 2019-04-22 | Tandem type roller slag cooler unit capable of being effectively adjusted according to actual working condition requirements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910322011.4A CN109945175B (en) | 2019-04-22 | 2019-04-22 | Tandem type roller slag cooler unit capable of being effectively adjusted according to actual working condition requirements |
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| Publication Number | Publication Date |
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| CN109945175A true CN109945175A (en) | 2019-06-28 |
| CN109945175B CN109945175B (en) | 2024-05-17 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2060480A1 (en) * | 1991-10-22 | 1994-11-16 | Remetal Sa | Procedure for cooling of hot slag and slag cooler used with said procedure |
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-
2019
- 2019-04-22 CN CN201910322011.4A patent/CN109945175B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2060480A1 (en) * | 1991-10-22 | 1994-11-16 | Remetal Sa | Procedure for cooling of hot slag and slag cooler used with said procedure |
| CN2575453Y (en) * | 2002-10-31 | 2003-09-24 | 李玉清 | Special mould for processing electronic striking head of lighter |
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