CN108662906B - A kind of vertical cooling machine flow controlling method of air and device - Google Patents
A kind of vertical cooling machine flow controlling method of air and device Download PDFInfo
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- CN108662906B CN108662906B CN201710200799.2A CN201710200799A CN108662906B CN 108662906 B CN108662906 B CN 108662906B CN 201710200799 A CN201710200799 A CN 201710200799A CN 108662906 B CN108662906 B CN 108662906B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
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Abstract
The present invention provides a kind of vertical cooling machine flow controlling method of air and device, wherein method includes: to obtain the first temperature change value, wherein first temperature change value is material from feed bin is entered to entering the temperature change value after vertical cooling machine；Second temperature changing value is obtained, wherein the second temperature changing value is the temperature change value that cooling air-flow passes in and out the vertical cooling machine；Obtain the mass change value of material in the vertical cooling machine；The throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine is obtained according to above-mentioned parameter.The present invention can detecte out material and enter the temperature change after vertical cooling machine, in conjunction with the quality fluctuation of material in the temperature change and vertical cold of cooling air-flow disengaging vertical cooling machine, the variation that should occur when quality of material fluctuation to air quantity can be obtained, it is carried out on this basis to the feedforward control of air quantity, make air quantity with the fluctuation of material in vertical cooling machine adjust automatically so that Boiler pressure control is much sooner, accurately.
Description
Technical field
The present invention relates to sinter cooling technology more particularly to a kind of vertical cooling machine flow controlling method of air and device.
Background technique
Vertical cooling machine (tank, vertical cooling tank etc. are erected in alternatively referred to as vertical cooling, referred to as found cold), is that one kind is similar to
The shaft furnace equipment of vertical furnace structure can make the heat sinter being discharged from sintering machine and cooling gas in a closed space
Efficiently heat exchange is carried out, so that heat sinter be cooled down, improves the recovery efficiency of heat sinter waste heat to the maximum extent,
It achieves energy-saving and emission reduction purposes.When carrying out practically, that contain inside vertical cooling machine is usually various granularities (general < 150mm)
Heat sinter and cooling gas mixture, heat sinter moves from top to bottom as material, i.e., at the top of vertical cooling machine
Entrance storehouse enters in tank, falls naturally under the effect of gravity, and cooling air-flow is then passed through from vertical cooling machine middle and lower part, by down toward
On inversely heat sinter is cooled down, realize heat exchange.Multiple discharge gates are arranged at the lower part of vertical cooling machine, arrange at discharge gate
There is discharge device.Temperature detection instrument can be used to carry out temperature detection to the sinter that each discharge gate is discharged.
In order to ensure the heat exchange effect of heat sinter and cooling wind, thermal energy is made full use of, generally using small wind slow cooling
Mode, i.e. cooling air quantity are as small as possible, and heat sinter flow velocity is as slow as possible, and such heat exchanger time is just grown, sintering after cooling
The temperature of mine is also just low.Meanwhile because material flow can not be too low it must also be ensured that meeting the requirement of production technology,
And can may also there be fluctuation.Under this complex situations, in order to ensure cooling effect, just needed when controlling cooling air quantity
Mutually to coordinate with the inventory in vertical cooling machine.
Inventor has found in the implementation of the present invention, the vertical cooling of inflow and outflow that material would generally be relatively stable
Machine, so the inventory possessed in vertical cooling machine is held essentially constant, but in practice due to some, vertical cooling machine tank
The inventory and pan feeding temperature inside possessed are it is possible that fluctuation, at this time in order to ensure row that dump temperature can be down to permission in time
Material temperature degree just should make corresponding adjustment to air quantity in time for material fluctuation, however in the prior art, it is seen simply by artificial
The dump temperature of discharge gate is examined to carry out the adjusting of air quantity, temperature is too low when if material reaching discharge gate illustrates heat exchanger time
It is too long, early may should reduce air quantity, and if temperature is excessively high, explanation should may already increase air quantity.It can be seen that the prior art
In, there is very big lag to the adjustment of air quantity, it is not prompt enough, to bring adverse effect to production process, also affect remaining
The effect of heat utilization.Further, since be artificial observation discharge situation to carry out the adjusting of air quantity, control to air quantity is not led to also not
It is enough accurate.
Summary of the invention
The present invention provides a kind of vertical cooling machine flow controlling method of air and device, vertical cold to improve when material fluctuates
But the timeliness and accuracy of fan delivery control.
According to a first aspect of the embodiments of the present invention, a kind of vertical cooling machine flow controlling method of air, the method packet are provided
It includes:
The first temperature change value is obtained, wherein first temperature change value is material from feed bin is entered to the vertical cooling of entrance
Temperature change value after machine；
Second temperature changing value is obtained, wherein the second temperature changing value is that cooling air-flow passes in and out the vertical cooling machine
Temperature change value；
Obtain the mass change value of material in the vertical cooling machine；
According to first temperature change value, mass change value, second temperature changing value, acquisition is passed through the vertical cooling
The throughput adjusted value of the cooling air-flow of machine；
The cooling air-flow of the vertical cooling machine is passed through according to throughput adjusted value adjustment.
Optionally, the first temperature change value of the acquisition, comprising:
First material temperature value is obtained, wherein the first material temperature value is material when entering feed bin described in material enters
Temperature；
Second material temperature value is obtained, wherein the second material temperature value is the material temperature that temperature-detecting device detects
Predetermined position is arranged in the vertical cooling machine in angle value, the temperature-detecting device；
Using the first material temperature value, the second material temperature value difference as first temperature change value.
Optionally, in the vertical cooling machine predetermined position be the vertical cooling machine in for air port at.
Optionally, the temperature-detecting device has one or more；
When the temperature-detecting device has multiple, the multiple temperature-detecting device is along the vertical cooling machine cross section
Circumference, the acquisition second material temperature value, comprising:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
Optionally, the mass change value for obtaining material in the vertical cooling machine, comprising:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical
The mass change value of material in formula cooler.
Optionally, described according to first temperature change value, mass change value, second temperature changing value, acquisition is passed through
The throughput adjusted value of the cooling air-flow of the vertical cooling machine, comprising:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling
Air specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling for being passed through the vertical cooling machine
The throughput adjusted value of air-flow.
According to a second aspect of the embodiments of the present invention, a kind of vertical cooling machine air flow controller, described device packet are provided
It includes:
First temperature change obtains module, for obtaining the first temperature change value, wherein first temperature change value is
Material from enter feed bin to enter vertical cooling machine after temperature change value；
Second temperature variation obtains module, for obtaining second temperature changing value, wherein the second temperature changing value is
Cooling air-flow passes in and out the temperature change value of the vertical cooling machine；
Mass change obtains module, for obtaining the mass change value of material in the vertical cooling machine；
Air-flow adjusts computing module, for being changed according to first temperature change value, mass change value, second temperature
Value obtains the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine；
Air-flow adjusts execution module, and the cooling air of the vertical cooling machine is passed through according to throughput adjusted value adjustment
Stream.
Optionally, the first temperature change acquisition module includes:
The first submodule of temperature detection, for obtaining first material temperature value, wherein the first material temperature value is object
Enter temperature of charge when feed bin described in material entrance；
Temperature detection second submodule, for obtaining second material temperature value, wherein the second material temperature value is temperature
Predeterminated position is arranged in the vertical cooling machine in the temperature of charge value that degree detection device detects, the temperature-detecting device
Place；
Temperature computation submodule, for using the difference of the first material temperature value, the second material temperature value as institute
State the first temperature change value.
Optionally, in the vertical cooling machine predetermined position be the vertical cooling machine in for air port at.
Optionally, the temperature-detecting device has one or more；
When the temperature-detecting device has multiple, the multiple temperature-detecting device is along the vertical cooling machine cross section
Circumference, the temperature detection second submodule are used for:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
Optionally, the mass change obtains module and is used for:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical
The mass change value of material in formula cooler.
Optionally, the air-flow adjustment computing module is used for:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling
Air specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling for being passed through the vertical cooling machine
The throughput adjusted value of air-flow.
Technical solution provided in an embodiment of the present invention can include the following benefits:
In embodiments of the present invention, (such as temperature detection is filled by the way that temperature-detecting device is arranged in vertical cooling machine
Install the air inlet in vertical cooling machine), it can detecte out material and enter the temperature change after vertical cooling machine, in conjunction with
Cooling air-flow passes in and out the quality fluctuation of material in the temperature change and vertical cold of vertical cooling machine, can obtain quality of material wave
The variation that should occur when dynamic to air quantity, then carries out making air quantity with vertical cooling machine to the feedforward control of air quantity on this basis
The fluctuation of interior material and adjust automatically, so that Boiler pressure control is much sooner, accurately.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.In addition, these are situated between
Continue the restriction not constituted to embodiment, and the element in attached drawing with same reference numbers label is expressed as similar element, removes
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of process of vertical cooling machine flow controlling method of air shown in an exemplary embodiment according to the present invention
Figure；
Fig. 2 is a kind of process of vertical cooling machine flow controlling method of air shown in an exemplary embodiment according to the present invention
Figure；
Fig. 3 is the temperature-detecting device position view shown in an exemplary embodiment according to the present invention；
Fig. 4 is the temperature-detecting device position view shown in an exemplary embodiment according to the present invention；
Fig. 5 is that the quality of material shown in an exemplary embodiment changes schematic diagram according to the present invention；
Fig. 6 is the dump temperature shown in an exemplary embodiment-air quantity feedback control schematic diagram according to the present invention；
Fig. 7 is a kind of signal of vertical cooling machine air flow controller shown in an exemplary embodiment according to the present invention
Figure；
Fig. 8 is a kind of signal of vertical cooling machine air flow controller shown in an exemplary embodiment according to the present invention
Figure.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Fig. 1 is a kind of process of vertical cooling machine flow controlling method of air shown in an exemplary embodiment according to the present invention
Figure.
Shown in Figure 1, this method may include:
Step S101, obtain the first temperature change value, wherein first temperature change value be material from enter feed bin into
Temperature change value after entering vertical cooling machine.
High-temperature material (i.e. hot mine, heat sinter) enters in vertical cooling machine tank from the feed bin that enters at the top of vertical cooling machine,
It falls naturally under the effect of gravity, cooling air-flow is passed through from the air inlet of vertical cooling machine middle and lower part, from the bottom to top inversely to object
Material is cooled down, and the cooled air-flow of material heat is taken away in heat exchanging process, and temperature of charge is lower by height, cooling air-flow temperature
It is got higher by low.
For specifically how to calculate the temperature change value after material enters vertical cooling machine, the present embodiment and without limit
System, those skilled in the art can according to different demands different scenes and voluntarily select, design, can use here this
A little selections and design are all without departing from spirit and scope of the invention.
Step S102 obtains second temperature changing value, wherein the second temperature changing value is described in cooling air-flow disengaging
The temperature change value of vertical cooling machine.
Such as it can detecte cold wind temperature inside vertical cooling machine at cold air inlet, while detecting vertical cooling machine flue gas
The hot blast temperature in exit, the difference between the two are the temperature change value that cooling air-flow passes in and out the vertical cooling machine.
Step S103 obtains the mass change value of material in the vertical cooling machine.
The main purpose of the embodiment of the present invention adjusts air quantity when i.e. quality of material fluctuates in vertical cooling machine in time.
Many times, the relatively stable inflow and outflow vertical cooling machine of material, so the quality of material in vertical cooling machine is protected substantially
It holds constant, the level of filler material inside vertical cooling machine can detecte by level-sensing device and be held essentially constant, and due to some originals
When because being fluctuated such as mass flow, for example, input mass flow is constant but outputting material flow becomes smaller that (such as discharge gate is arranged
Doses is reduced), the quality of material possessed in vertical cooling machine also will appear variation, can pass through the vertical cooling of measuring and calculating acquisition at this time
The mass change value of material in machine.
It is easily understood that the sequencing embodiment of the present invention of above-mentioned steps S101~S103 and being not limited.
Step S104, according to first temperature change value, mass change value, second temperature changing value, acquisition is passed through institute
State the throughput adjusted value of the cooling air-flow of vertical cooling machine.
Step S105 is passed through the cooling air-flow of the vertical cooling machine according to throughput adjusted value adjustment.
After the quality of material in vertical cooling machine changes, m is added additional with quality of material1For, then should
Multi-pass enters a certain amount of cooling air to this additional increased m1It is cooled down, so that it is guaranteed that vertical cooling machine is discharged after cooling
Temperature of charge keep stablize.It can be according to first temperature change value, mass change value, these passes of second temperature changing value
Key physical quantity obtains the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine.
In the present embodiment, (such as temperature-detecting device is set by the way that temperature-detecting device is arranged in vertical cooling machine
Set the air inlet in vertical cooling machine), it can detecte out material and enter the temperature change after vertical cooling machine, in conjunction with cooling
Air-flow passes in and out the quality fluctuation of material in the temperature change and vertical cold of vertical cooling machine, when can obtain quality of material fluctuation
It to the variation that air quantity should occur, then carries out on this basis to the feedforward control of air quantity, so that giving air quantity and vertical cooling machine
Interior material fluctuation is adapted, so that Boiler pressure control is much sooner, accurately.
The present embodiment is further described in conjunction with example below:
Shown in Figure 2, the first temperature change value of the acquisition may include:
Step S201 obtains first material temperature value, wherein the first material temperature value is that material enters the pan feeding
Temperature of charge when storehouse.
For example, entering feed bin material temperature can be detected using contactless thermometer (such as infrared thermometer).
Step S202 obtains second material temperature value, wherein the second material temperature value is temperature-detecting device detection
Predetermined position is arranged in the vertical cooling machine in the temperature of charge value arrived, the temperature-detecting device.
Such as temperature-detecting device can be thermoelectricity occasionally contactless thermometer (such as infrared thermometer).
Step S203, using the first material temperature value, the second material temperature value difference as first temperature
Changing value.
It for the predeterminated position embodiment of the present invention and is not limited, it is preferred that preset in the vertical cooling machine
At position can in the vertical cooling machine for air port at.
As example reference can be made to shown in Fig. 3, in Fig. 3,300 be vertical cooling machine, and material (i.e. heat sinter, in Fig. 3 not
Draw) enter after vertical cooling machine 300 from top entry storehouse and falls naturally due to gravity；In air feed entrance (such as air feed
Above import) temperature-detecting device 301 is set to detect by air-flow temperature of charge after cooling.
In this embodiment or some other embodiment of the present invention, the temperature-detecting device can have one or more；
When the temperature-detecting device has multiple, the multiple temperature-detecting device can be along the vertical cooling machine cross-sectional circumferential
Arrangement.
As example reference can be made to shown in Fig. 4, Fig. 4 is that (cross section in Fig. 4 is specifically vertical cooling machine cross-sectional view
The cross section of air feed entrance), Fig. 4 shows multiple temperature-detecting devices 401, can be according to the actual situation in vertical cooling machine
It is evenly arranged on same section inner wall circumference or nonuniform mutation operator this multiple temperature-detecting device, for the number of temperature-detecting device
Amount and layout pattern the present embodiment are simultaneously not limited.
When the temperature-detecting device has multiple, the acquisition second material temperature value may include:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
For example, the temperature data that each temperature-detecting device detects is denoted as T respectivelyi, i=1,2 ..., n, to temperature number
According to the filtering processing such as data rolling average is carried out, to reduce the influence of its random fluctuation, then find out in all temperature datas
Maximum value is denoted as T:
T=max (T1,T2,L,Tn) (1)
In this embodiment or some other embodiment of the present invention, the quality for obtaining material in the vertical cooling machine
Changing value may include:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical
The mass change value of material in formula cooler.
As example reference can be made to shown in Fig. 5, material position rises h in Fig. 51, the inner diameter at material position change location is
L1, then the mass change value m of material in vertical cooling machine can be calculated according to following first preset formula1:
In formula (2):
L1, inner diameter at material position change location, unit: m；
m1, the mass change value of material, unit: kg in vertical cooling machine；
h1, the controlling level changing value of material, unit: m in vertical cooling machine；
ρ1, material (i.e. sinter) density, unit: kg/m3。
In this embodiment or some other embodiment of the present invention, described to be become according to first temperature change value, quality
Change value, second temperature changing value obtain the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine, may include:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling
Air specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling for being passed through the vertical cooling machine
The throughput adjusted value of air-flow.
Because having in the unit time according to the thermal balance relationship inside vertical cooling machine:
c1m1Δt1=η c2ρ2F2Δt2 (3)
In formula (3):
c1, material specific heat capacity, unit: J/ (kg DEG C)；
m1, the mass change value of material, unit: kg in vertical cooling machine；
Δt1, the temperature change of material, unit: DEG C；
η, heat exchanger effectiveness；
c2, cooling air specific heat capacity, unit: J/ (kg DEG C)；
ρ2, cooling air density, unit: kg/m3；
F2, the flow that cooling air need to adjust, unit: m3/h；
Δt2, the temperature variation of cooling air, unit: DEG C.
So association type (2) (3) can obtain
And then it obtains cooling air caused by the variable quantity of material in vertical cooling machine and adjusts flow formula namely second in advance
If formula, are as follows:
In formula (4):
F2, the throughput adjusted value of cooling air-flow, unit: m3/h；
m1, the mass change value of material, unit: kg in vertical cooling machine；
c1, material specific heat capacity, unit: J/ (kg DEG C), constant, tabling look-up or chemically examining obtains；
ρ1, material density, unit: kg/m3, constant, tabling look-up or chemically examining obtains；
L1, inner diameter at material position change location, unit: m, constant；
h1, the controlling level changing value of material in vertical cooling machine, unit: m, level-sensing device detect to obtain；
T11, the temperature of charge of vertical cooling machine entrance storehouse input, unit: DEG C, it detects to obtain by infrared thermometer；
T12, for temperature of charge at air port, unit: DEG C, it detects to obtain by thermocouple group, i.e. T in aforementioned formula (1)；
c2, cooling air specific heat capacity, unit: J/ (kg DEG C), constant, tabling look-up can obtain；
ρ2, cooling air density, unit: kg/m3, constant, tabling look-up can obtain；
T21, cold wind temperature at cold air inlet, unit: DEG C, it can detect to obtain by temperature detecting element；
T22, the hot blast temperature of vertical cooling machine smoke outlet, unit: DEG C, it can detect to obtain by temperature detecting element；
η, thermal conversion efficiency, constant, equipment can test to obtain after building up.
In the present embodiment, (such as temperature-detecting device is set by the way that temperature-detecting device is arranged in vertical cooling machine
Set the air inlet in vertical cooling machine), it can detecte out material and enter the temperature change after vertical cooling machine, in conjunction with cooling
Air-flow passes in and out the quality fluctuation of material in the temperature change and vertical cold of vertical cooling machine, when can obtain quality of material fluctuation
It to the variation that air quantity should occur, then carries out on this basis to the feedforward control of air quantity, so that giving air quantity and vertical cooling machine
Interior material fluctuation is adapted, so that Boiler pressure control is much sooner, accurately.
Furthermore it should be noted that the method for fluctuating adjustment air quantity above according to material is the fine tuning of air quantity (also i.e. by wind
It is worth based on amount current value, is finely tuned in basic value), belong to feedforward control, is control inner ring.May be used also except inner ring controlling
Setting control outer ring, i.e. setting dump temperature-air quantity feedback control, namely pass through the practical discharge temperature of charge of comparison and target
The difference of temperature carries out coarse adjustment (namely the basic value for directly adjusting air quantity) to air quantity, so that discharge temperature of charge reaches control mesh
Mark.
As example reference can be made to shown in Fig. 6, the F in Fig. 62The throughput adjusted value of cooling air-flow i.e. in the present invention, QWind
That is cold wind air quantity, thermocouple group can measure the actual temperature of discharge material, and master selector is by the actual temperature and cools down target temperature
Degree obtains the target value (i.e. target flow) of air quantity, the comprehensive cold wind actual flow value (flow measurement of PID regulator finally after comparing relatively
), target flow and amount trimmed F2, blower is controlled.Coarse adjustment for air quantity, non-present invention content, with the present invention
Onrelevant, each belongs to different thinkings, different schemes, and the present invention repeats no more this.
Following is apparatus of the present invention embodiment, can be used for executing embodiment of the present invention method.For apparatus of the present invention reality
Undisclosed details in example is applied, embodiment of the present invention method is please referred to.
Fig. 7 is a kind of signal of vertical cooling machine air flow controller shown in an exemplary embodiment according to the present invention
Figure.
It is shown in Figure 7, the apparatus may include:
First temperature change obtains module 701, for obtaining the first temperature change value, wherein first temperature change value
For material from enter feed bin to enter vertical cooling machine after temperature change value.
For specifically how to calculate the temperature change value after material enters vertical cooling machine, the present embodiment and without limit
System, those skilled in the art can according to different demands different scenes and voluntarily select, design, can use here this
A little selections and design are all without departing from spirit and scope of the invention.
Second temperature variation obtains module 702, for obtaining second temperature changing value, wherein the second temperature changing value
The temperature change value of the vertical cooling machine is passed in and out for cooling air-flow.
Such as it can detecte cold wind temperature inside vertical cooling machine at cold air inlet, while detecting vertical cooling machine flue gas
The hot blast temperature in exit, the difference between the two are the temperature change value that cooling air-flow passes in and out the vertical cooling machine.
Mass change obtains module 703, for obtaining the mass change value of material in the vertical cooling machine.
By taking quality of material fluctuates as an example, when being fluctuated due to some such as mass flow, such as input mass flow
Constant but outputting material flow becomes smaller (such as discharge gate withdrawal rate is reduced), and the quality of material possessed in vertical cooling machine also can
Change, the mass change value of material in vertical cooling machine can be obtained by measuring and calculating at this time.
Air-flow adjusts computing module 704, for being become according to first temperature change value, mass change value, second temperature
Change value obtains the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine.
Air-flow adjusts execution module 705, and the cooling of the vertical cooling machine is passed through according to throughput adjusted value adjustment
Air-flow.
After the quality of material in vertical cooling machine changes, m is added additional with quality of material1For, then should
Multi-pass enters a certain amount of cooling air to this additional increased m1It is cooled down, so that it is guaranteed that vertical cooling machine is discharged after cooling
Temperature of charge keep stablize.It can be according to first temperature change value, mass change value, these passes of second temperature changing value
Key physical quantity obtains the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine.
Shown in Figure 8, in this embodiment or some other embodiment of the present invention, first temperature change obtains mould
Block may include:
The first submodule of temperature detection 801, for obtaining first material temperature value, wherein the first material temperature value is
Enter temperature of charge when feed bin described in material entrance.
For example, entering feed bin material temperature can be detected using contactless thermometer (such as infrared thermometer).
Temperature detection second submodule 802, for obtaining second material temperature value, wherein the second material temperature value is
Predeterminated position is arranged in the vertical cooling machine in the temperature of charge value that temperature-detecting device detects, the temperature-detecting device
Place.
Such as temperature-detecting device can be thermoelectricity occasionally contactless thermometer (such as infrared thermometer).
Temperature computation submodule 803, for using the first material temperature value, the second material temperature value difference as
First temperature change value.
It for the predeterminated position embodiment of the present invention and is not limited, it is preferred that preset in the vertical cooling machine
At position can in the vertical cooling machine for air port at.
In this embodiment or some other embodiment of the present invention, the temperature-detecting device can have one or more；
When the temperature-detecting device has multiple, the multiple temperature-detecting device is along the vertical cooling machine cross section
Circumference, the temperature detection second submodule specifically can be used for:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
In this embodiment or some other embodiment of the present invention, the mass change obtains module and specifically can be used for:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical
The mass change value of material in formula cooler.
In this embodiment or some other embodiment of the present invention, the air-flow adjustment computing module is used for:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling
Air specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling for being passed through the vertical cooling machine
The throughput adjusted value of air-flow.
In the present embodiment, (such as temperature-detecting device is set by the way that temperature-detecting device is arranged in vertical cooling machine
Set the air inlet in vertical cooling machine), it can detecte out material and enter the temperature change after vertical cooling machine, in conjunction with cooling
Air-flow passes in and out the quality fluctuation of material in the temperature change and vertical cold of vertical cooling machine, when can obtain quality of material fluctuation
It to the variation that air quantity should occur, then carries out on this basis to the feedforward control of air quantity, so that giving air quantity and vertical cooling machine
Interior material fluctuation is adapted, so that Boiler pressure control is much sooner, accurately.
About the device in above-described embodiment, wherein each unit module execute the concrete mode of operation related
It is described in detail in the embodiment of this method, no detailed explanation will be given here.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by appended
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (12)
1. a kind of vertical cooling machine flow controlling method of air, which is characterized in that the described method includes:
The first temperature change value is obtained, wherein first temperature change value is material after entering feed bin to entrance vertical cooling machine
Temperature change value；
Second temperature changing value is obtained, wherein the second temperature changing value is the temperature that cooling air-flow passes in and out the vertical cooling machine
Spend changing value；
Obtain the mass change value of material in the vertical cooling machine；
According to first temperature change value, mass change value, second temperature changing value, acquisition is passed through the vertical cooling machine
The throughput adjusted value of cooling air-flow；
The cooling air-flow of the vertical cooling machine is passed through according to throughput adjusted value adjustment.
2. the method according to claim 1, wherein the first temperature change value of the acquisition, comprising:
First material temperature value is obtained, wherein the first material temperature value is material temperature when entering feed bin described in material enters
Degree；
Second material temperature value is obtained, wherein the second material temperature value is the temperature of charge that temperature-detecting device detects
Predetermined position is arranged in the vertical cooling machine in value, the temperature-detecting device；
Using the first material temperature value, the second material temperature value difference as first temperature change value.
3. according to the method described in claim 2, it is characterized in that, predetermined position is described vertical in the vertical cooling machine
In cooler for air port at.
4. according to the method described in claim 2, it is characterized in that, the temperature-detecting device has one or more；
When the temperature-detecting device has multiple, the multiple temperature-detecting device is along the vertical cooling machine cross-sectional circumferential
Arrangement, the acquisition second material temperature value, comprising:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
5. the method according to claim 1, wherein the quality for obtaining material in the vertical cooling machine becomes
Change value, comprising:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical cold
But in machine material mass change value.
6. according to the method described in claim 5, it is characterized in that, described according to first temperature change value, mass change
Value, second temperature changing value obtain the throughput adjusted value for being passed through the cooling air-flow of the vertical cooling machine, comprising:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling air
Specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling air-flow for being passed through the vertical cooling machine
Throughput adjusted value.
7. a kind of vertical cooling machine air flow controller, which is characterized in that described device includes:
First temperature change obtains module, for obtaining the first temperature change value, wherein first temperature change value is material
From enter feed bin to enter vertical cooling machine after temperature change value；
Second temperature variation obtains module, for obtaining second temperature changing value, wherein the second temperature changing value is cooling
Air-flow passes in and out the temperature change value of the vertical cooling machine；
Mass change obtains module, for obtaining the mass change value of material in the vertical cooling machine；
Air-flow adjusts computing module, for obtaining according to first temperature change value, mass change value, second temperature changing value
Take the throughput adjusted value for the cooling air-flow for being passed through the vertical cooling machine；
Air-flow adjusts execution module, and the cooling air-flow of the vertical cooling machine is passed through according to throughput adjusted value adjustment.
8. air flow controller according to claim 7, which is characterized in that first temperature change obtains module packet
It includes:
The first submodule of temperature detection, for obtaining first material temperature value, wherein the first material temperature value be material into
Enter temperature of charge when feed bin described in entering；
Temperature detection second submodule, for obtaining second material temperature value, wherein the second material temperature value is temperature inspection
The temperature of charge value that device detects is surveyed, predetermined position is arranged in the vertical cooling machine in the temperature-detecting device；
Temperature computation submodule, for using the difference of the first material temperature value, the second material temperature value as described the
One temperature change value.
9. air flow controller according to claim 8, which is characterized in that predetermined position is in the vertical cooling machine
In the vertical cooling machine for air port at.
10. air flow controller according to claim 8, which is characterized in that the temperature-detecting device has one or more
It is a；
When the temperature-detecting device has multiple, the multiple temperature-detecting device is along the vertical cooling machine cross-sectional circumferential
Arrangement, the temperature detection second submodule are used for:
Obtain the temperature value that each temperature-detecting device detects；
The maximum value for the temperature value that all temperature-detecting devices are detected is as the second material temperature value.
11. air flow controller according to claim 7, which is characterized in that the mass change obtains module and is used for:
Obtain the controlling level changing value of material in the vertical cooling machine；
Obtain the inner diameter at material position change location；
According to the controlling level changing value, the inner diameter, material density and the first preset formula, obtain described vertical cold
But in machine material mass change value.
12. air flow controller according to claim 11, which is characterized in that the air-flow adjustment computing module is used for:
According to first temperature change value, mass change value, second temperature changing value and material specific heat capacity, cooling air
Specific heat capacity, cooling air density, thermal conversion efficiency and the second preset formula obtain the cooling air-flow for being passed through the vertical cooling machine
Throughput adjusted value.
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| CN201710200799.2A CN108662906B (en) | 2017-03-30 | 2017-03-30 | A kind of vertical cooling machine flow controlling method of air and device |
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| CN112705011B (en) * | 2019-10-25 | 2022-02-18 | 中冶长天国际工程有限责任公司 | Control method and device for hot air fan of analytical tower |
| CN114279210B (en) * | 2022-01-07 | 2024-08-16 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel automatic control method for vertical cold kiln air supply |
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| CN2211581Y (en) * | 1994-11-21 | 1995-11-01 | 陈华奎 | Vertical refrigerator for cement rotary kiln |
| CN101984322A (en) * | 2010-12-08 | 2011-03-09 | 中冶长天国际工程有限责任公司 | Temperature control method and system of cold and hot air transition period of sintering ignition furnace |
| CN103234366A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Automatic control method for cool-constant-temperature ore discharging of sinter ore furnace |
| CN105910444A (en) * | 2016-04-21 | 2016-08-31 | 中冶北方（大连）工程技术有限公司 | Material temperature control method of sinter-circle-cooling machine |
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| GB230424A (en) * | 1924-03-10 | 1925-09-10 | Fried Krupp Grusonwerk Aktiengesellschaft | |
| CN2211581Y (en) * | 1994-11-21 | 1995-11-01 | 陈华奎 | Vertical refrigerator for cement rotary kiln |
| CN101984322A (en) * | 2010-12-08 | 2011-03-09 | 中冶长天国际工程有限责任公司 | Temperature control method and system of cold and hot air transition period of sintering ignition furnace |
| CN103234366A (en) * | 2013-04-15 | 2013-08-07 | 中信重工机械股份有限公司 | Automatic control method for cool-constant-temperature ore discharging of sinter ore furnace |
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