CN208653090U - A kind of coal tower drying system - Google Patents
A kind of coal tower drying system Download PDFInfo
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- CN208653090U CN208653090U CN201821034432.4U CN201821034432U CN208653090U CN 208653090 U CN208653090 U CN 208653090U CN 201821034432 U CN201821034432 U CN 201821034432U CN 208653090 U CN208653090 U CN 208653090U
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- coal
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- drying
- water content
- air flue
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Abstract
The utility model relates to a kind of coal tower drying systems, it is characterized in that, the drying system includes coal tower, drying device ontology, material-feeding mechanism, coker offgas pipeline control device and air blower, drying device ontology is provided on the coal tower, the surface of coal tower is arranged in the material-feeding mechanism, the coker offgas pipeline connects access drying device ontology by air blower, and the side of coal tower is arranged in the control device.The technical solution saves the energy of coking by coke oven process, reduces the coking pollution of process, improves coking efficiency.
Description
Technical field
The utility model relates to a kind of drying systems, and in particular to a kind of coal tower drying system belongs to coke oven drying equipment
Technical field.
Background technique
Water in coking coal is useless ingredient for coke making process, and the coking coal of high water content enters coke oven carbonization
Behind room, to make its evaporation not only need consumption of calorie, furnace temperature is reduced, extends coking time, while can also reduce the dress of coke oven
Coal capacity influences coke oven production efficiency, therefore before being packed into carbonizing chamber, the lower the water content of coking coal the better.In actual production
In, the water content of coal mainly fluctuates in the section 6%-10%, if being dried before being transported to coal tower, low water content
Coal dust is easily floated in air in transport and treatment process and is polluted the environment, and since transportational process is longer, water
Part meeting generation variation affected by environment, impacts the operating condition of coke oven.Therefore a kind of technical solution is needed to realize coking coal
It has adequately been dried, and not can cause environmental pollution, while will not be by extraneous ring before entering carbonizing chamber
Border influences and causes change of moisture content.
Summary of the invention
The utility model exactly for the technical problems in the prior art, provides a kind of coal tower drying system, the skill
Art scenario-frame is compact ingenious, and the coking coal in coke-oven coal tower is dried in coal tower drying device, and provides a kind of control dress
Setting ensures that the water content of coking coal reaches criterion of acceptability, saves the energy of coking by coke oven process, improves coking efficiency.
To achieve the goals above, the technical solution of the utility model is as follows: a kind of coal tower drying system, the dry system
System includes coal tower, drying device ontology, material-feeding mechanism, coker offgas pipeline control device and air blower, is set on the coal tower
It is equipped with drying device ontology, the top of coal tower is arranged in the material-feeding mechanism, and the coker offgas pipeline is connected by air blower
The side of coal tower is arranged in drying device ontology, the control device.
As a kind of improvement of the utility model, the drying device ontology includes gas inlet pipeline, lower annular gas
Road, increase in pipeline, upper, annular air flue and exhaust gas outlet pipe road, all pipelines are homogeneously intercommunicated, 4 or more increase in pipeline
Lower annular air flue is connected to upper, annular air flue, high-temperature coking exhaust gas enters lower annular gas by gas inlet pipeline
Road, it is more uniform that upper, annular air flue is reached by increase in pipeline, then be discharged by exhaust gas outlet pipe road.Coker offgas is roused
After wind apparatus is blown into coal tower drying device ontology pipeline, pipeline outer wall can be heated, the coking coal contacted with pipeline outer wall is heated
Volatilization moisture content is afterwards to achieve the purpose that moisture removal.
As a kind of improvement of the utility model, the exhaust inlet pipe of the supply drying device ontology pipeline coker offgas
Road is supplied by more than two air inlets to lower annular air flue, and the exhaust gas outlet pipe road for coker offgas to be discharged passes through
More than two gas outlet connection upper, annular air flues 13 are exhausted.The quantity of increase in pipeline is according to the quantity of coal tower cloth shots
Determine, two cloth shots are arranged in below cloth shots not less than one increase in pipeline of installation, increase in pipeline, guarantee the refining to falling
Coking coal carries out efficient drying.
As a kind of improvement of the utility model, the drying system includes top coal water content detector and lower coal moisture content
Detector, the top coal water content detector be mounted on above upper, annular air flue, to detect the coking coal for just entering coal tower
Water content, lower coal water content detector be mounted on lower annular air flue in the following, to detect it is dry after coking coal water content.It is logical
The moisture content for crossing coking coal after control system is continuously detected into the moisture content of the coking coal of coal tower and drying, constantly regulate into coal tower
The exhausted air quantity of drying device makes it so as to which the coking coal around drying device ontology is continuously heated and dried
Reach predetermined moisture content.
As a kind of improvement of the utility model, the upper, annular airway diameter is identical with material-feeding mechanism cloth diameter,
Ensure that the coal that material-feeding mechanism is fallen is fallen in around upper, annular air flue, coal can be dried rapidly；Increase in pipeline is along cloth
The fixed point cloth shots of mechanism arrange, i.e., the dump center and increase in pipeline center formed after fixed point cloth is close, it is ensured that coking coal
It can be sufficiently dried with increase in pipeline contact in infall process；Since coke oven uniformly consumes the coking coal in coal tower,
So that the coal in coal tower during even drop down constantly by drying device heat drying, until reach lower annular air flue with
Under.
As a kind of improvement of the utility model, the control device include PLC controller, top coal water content detector,
Lower coal water content detector, blower variable frequency device VVVF, blower motor and exhaust gas blower, top coal water content detector is under
The water content information of the dry front and back coal measured is passed to PLC by portion's coal water content detector, and PLC judges whether to reach scheduled dry
It is useless to increase to control blower variable frequency device VVVF raising blower motor revolving speed if drying effect is unsatisfactory for requiring for dry effect
The blow rate required of enraged blower improves drying efficiency.
Compared with the existing technology, as follows the advantages of the utility model: the technical solution structure is compact to design ingenious, in coal tower
The top position Zhu Mei disposes row's heat drying tunnel, comes into full contact with coking coal with pipeline, by the height in coker offgas pipeline
Warm exhaust gas reaches heating and dry coking coal effect by these pipelines, and the technical solution takes full advantage of high exhaust temperatures,
The secondary use for realizing exhaust gas, greatly reduces production cost.
Detailed description of the invention
Fig. 1 coal tower drying device body construction schematic diagram；
The structural schematic diagram of Fig. 2 coal tower drying system；
Fig. 3 is Fig. 2 top view；
Fig. 4 drying device and cloth point position counter structure schematic diagram；
Fig. 5 is Fig. 4 top view.
Wherein 1- coal tower；2- material-feeding mechanism；Coking coal before 3- is dry, 4- coker offgas pipeline, 5- exhaust gas blower, 6-
Gas inlet pipeline, 7- coal tower drying device ontology, 8- exhaust gas outlet pipe road, 9- drying device this body support frame, after 10- is dry
Coking coal, the top 11- coal water content detector, 12- lower coal water content detector, 13- upper, annular air flue, 14- increase in pipeline,
15- lower annular air flue.
Specific embodiment
It is practical new to this with reference to the accompanying drawings and detailed description in order to reinforce the understanding and cognition to the utility model
Type makes further instructions and introduces.
Embodiment 1: referring to Fig. 1-Fig. 5, a kind of coal tower drying system, the drying system includes coal tower 1, drying device sheet
Body 7, material-feeding mechanism 2,4 control device of coker offgas pipeline and air blower 5 are provided with drying device ontology on the coal tower,
The surface of coal tower is arranged in the material-feeding mechanism, and the coker offgas pipeline connects drying device ontology, institute by air blower
State the side that coal tower is arranged in control device；The drying device ontology include gas inlet pipeline 6, lower annular air flue 15,
Increase in pipeline 14, upper, annular air flue 13 and exhaust gas outlet pipe road 8, all pipelines are homogeneously intercommunicated, 4 or more tedges
Lower annular air flue 15 is connected to by road 14 with upper, annular air flue 13, and high-temperature coking exhaust gas is entered by gas inlet pipeline 6
Lower annular air flue 15 more uniformly reaches upper, annular air flue 13 by increase in pipeline 14, then passes through exhaust gas outlet pipe road 8
Discharge.After coker offgas is blown into coal tower drying device ontology pipeline by blower device, pipeline can be heated, the refining with tube contacts
Achieve the purpose that moisture removal, the gas inlet pipeline 6 of the supply drying device ontology pipeline coker offgas are logical after coking coal is heated
It crosses more than two air inlets to supply to lower annular air flue 15, the exhaust gas outlet pipe road 8 for coker offgas to be discharged passes through
More than two gas outlet connection upper, annular air flues 13 are exhausted.The quantity of increase in pipeline 14 is according to the numbers of coal tower cloth shots
To determine, two cloth shots are arranged in below cloth shots amount not less than one increase in pipeline of installation, increase in pipeline, are guaranteed to falling
Coking coal carries out efficient drying；The drying system includes top coal water content detector 11 and lower coal water content detector 12, institute
Top coal water content detector 11 is stated to be mounted on above upper, annular air flue 13, to detect just enter coal tower coking coal it is aqueous
Amount, lower coal water content detector 12 be mounted on lower annular air flue 15 in the following, to detect it is dry after coking coal water content.Coal
Tower drying device, exhaust gas flow control device and coal water content detector etc. are as shown in Figure 2 and Figure 3 in the assembly of coal tower.Pass through control
The moisture content of coking coal after system is continuously detected into the moisture content of the coking coal of coal tower and drying, constantly regulate and fills into coal tower is dry
The exhausted air quantity set reaches pre- so as to which the coking coal around drying device ontology is continuously heated and dried
Determine water content, 13 diameter of upper, annular air flue is identical with 2 cloth diameter of material-feeding mechanism, it is ensured that the coal that material-feeding mechanism 2 is fallen
It falls in around upper, annular air flue 13, coal can be dried rapidly；Fixed point cloth shots of the increase in pipeline 14 along material-feeding mechanism 2
Arrangement, i.e., the dump center and 14 center of increase in pipeline formed after fixed point cloth are close, it is ensured that coking coal can in infall process
To be sufficiently dried with the contact of increase in pipeline 14, as shown in figure Fig. 4, Fig. 5.Since coke oven uniformly consumes the coking in coal tower
Coal so that the coal in coal tower during even drop down constantly by drying device heat drying, until reaching lower annular gas
Road 15 is hereinafter, the control device includes PLC controller, top coal water content detector 11, lower coal water content detector 12, air blast
Machine frequency converter VVVF, blower motor and exhaust gas blower, top coal water content detector 11 and lower coal water content detector 12 will
The water content information of the dry front and back coal measured passes to PLC, and PLC judges whether to reach scheduled drying effect, if dry effect
Fruit is unsatisfactory for requiring, then controls blower variable frequency device VVVF and improve blower motor revolving speed to increase the air blast of exhaust gas blower
Amount improves drying efficiency.
The course of work: referring to Fig. 1-Fig. 5, referring to Fig.1, coal tower drying device ontology is manufactured, mainly includes gas inlet
Pipeline 6, lower annular air flue 15, increase in pipeline 14, upper, annular air flue 13 and exhaust gas outlet pipe road 8 form, the pipeline
Homogeneous intercommunicated, 13 diameter of upper, annular air flue is similar with 2 cloth diameter of material-feeding mechanism, it is ensured that the coal planted by material-feeding mechanism 2
It falls in around upper, annular air flue 13, coal can be dried rapidly；Increase in pipeline 14 is by lower annular air flue 15 and top
The connection of annular air channel 13 is got up, and the fixed point cloth shots along material-feeding mechanism 2 are arranged evenly, i.e., in the dump formed after fixed point cloth
The heart and 14 center of increase in pipeline are close, it is ensured that coking coal can sufficiently be done with the contact of increase in pipeline 14 in infall process
It is dry, take increase in pipeline 14 to install 8 in this example, every below coal tower cloth shots.To ensure that the coker offgas accessed can be more
Lower annular air flue 15 is uniformly entered, upper, annular air flue 13 is reached by increase in pipeline 14, then by 8 row of exhaust gas outlet pipe road
Out, gas inlet pipeline 6 is connected to by exhaust gas blower 5 with coker offgas pipeline, high-temperature coking exhaust gas is accessed drying
Device noumenon, gas inlet pipeline 6 are supplied by more than two air inlets to lower annular air flue 15, exhaust gas outlet pipe road 8
Upper, annular air flue 13 is connected by more than two gas outlets, exhaust gas after cooling is expelled back into coker offgas pipeline.
Referring to Fig. 4, Fig. 5, coal tower drying device is installed in coal tower, top coal water content detector 11 is mounted on upper, annular
Above air flue 13, to detect the water content for just entering the coking coal of coal tower, lower coal water content detector 12 is mounted on lower annular
Air flue 15 in the following, to detect it is dry after coking coal water content.Drying device ontology 7 is fixed by drying device this body support frame 9
It is mounted on coal tower top, the characteristic of cloth is pinpointed according to coal tower, the drop point of coal in cloth process is made to fall in upper, annular air flue 13
Near.
To ensure that the moisture content by coal in coal tower drops to predetermined value, need constantly to detect just to enter the water content of the coking coal of coal tower
With the water content of the coking coal after drying, moisture control is carried out by dynamic regulation coker offgas amount.Control device includes PLC
Controller, top coal water content detector 11, lower coal water content detector 12, blower variable frequency device VVVF, blower motor and useless
Enraged blower.The water content information for drying front and back coal that top coal water content detector 11 and lower coal water content detector 12 will measure
PLC is passed to, PLC judges whether to reach scheduled drying effect, if drying effect is unsatisfactory for requiring, controls blower variable frequency
Device VVVF improves blower motor revolving speed to increase the blow rate required of exhaust gas blower, improves drying efficiency.Top coal is set in this example
Water content detector 11 measure into coal tower coking coal water content be Wf1=10%, the coking coal water content set as Wf=6%, reality
The water content that border lower coal water content detector 12 measures is Wf2, then control system to ensure water content Wf2=Wf of coal in coal tower=
6%, then coking coal water content must be removed Wf1-Wf=10%-6%=4%.In the case where coke making process is stablized, coker offgas
Temperature be also it is relative constant, the air inflow of the moisture evaporation amount of coking coal and coker offgas can be seen it is proportional,
It is proportional with the revolving speed of exhaust gas blower, therefore the revolving speed for controlling exhaust gas blower can control the aqueous of coking coal
Amount.If blower motor be two-pole machine, rated speed 2950r/min, debugging the stage, blower revolution N=n1=1400r/min
When, Wf2=7% of survey, i.e. Wf2 are greater than 6% target value, then needing to continue to improve rotation speed of fan reduces the water content of coal, in blower
When revolution N=n2=1700r/min, if Wf2=6% is to get out: when for coking coal water content being removed Wf1-Wf=4%, needing wind
Machine revolution N is adjusted to 1700r/min；With the variation of coal, when water removal needs to change, if changed factor is 1.5, need
When water removal reaches (Wf1-Wf) * X=4%*1.5=6%, then blower revolution N is adjusted to n2*X=1700r/min*1.5=2550r/
Min.
It should be noted that above-described embodiment, is not used to limit the protection scope of the utility model, on above-mentioned basis
Upper made equivalent substitution or substitution belongs to the protection scope of the utility model claims.
Claims (6)
1. a kind of coal tower drying system, which is characterized in that the drying system include coal tower, drying device ontology, material-feeding mechanism,
Coker offgas pipeline control device and air blower are provided with drying device ontology, the material-feeding mechanism setting on the coal tower
In the top of coal tower, the coker offgas pipeline connects drying device ontology by air blower, and the control device is arranged in coal
The side of tower.
2. coal tower drying system according to claim 1, which is characterized in that the drying device ontology includes gas inlet
Pipeline, lower annular air flue, increase in pipeline, upper, annular air flue and exhaust gas outlet pipe road, all pipelines are homogeneously intercommunicated, and 4
Lower annular air flue is connected to by increase in pipeline more than root with upper, annular air flue, and high-temperature coking exhaust gas is by exhaust inlet pipe
Road enters lower annular air flue, more uniform to reach upper, annular air flue by increase in pipeline, then passes through exhaust gas outlet pipe road
Discharge.
3. coal tower drying system according to claim 2, which is characterized in that the supply drying device ontology pipeline coking
The gas inlet pipeline of exhaust gas is supplied by more than two air inlets to lower annular air flue, for what coker offgas was discharged
Exhaust gas outlet pipe road connects upper, annular air flue by more than two gas outlets and is exhausted.
4. coal tower drying system according to claim 3, which is characterized in that the drying system includes the inspection of top coal moisture content
It surveys device and lower coal water content detector, the top coal water content detector is mounted on above upper, annular air flue, to detect just
Enter the water content of the coking coal of coal tower, lower coal water content detector is mounted on lower annular air flue in the following, after to detect drying
The water content of coking coal.
5. coal tower drying system according to claim 4, which is characterized in that the upper, annular airway diameter and material distributing machine
Structure cloth diameter is identical, and increase in pipeline is arranged along the fixed point cloth shots of material-feeding mechanism, i.e., the dump center formed after fixed point cloth
It is close with increase in pipeline center, it is ensured that coking coal can sufficiently be dried with increase in pipeline contact in infall process, due to
Coke oven uniformly consumes the coking coal in coal tower, so that the coal in coal tower is constantly added by drying device during even drop down
Heated drying, until reaching lower annular air flue or less.
6. coal tower drying system according to claim 3, which is characterized in that the control device include PLC controller, on
Portion's coal water content detector, lower coal moisture content detection 2, blower variable frequency device VVVF, blower motor and exhaust gas blower, top coal
The water content information of coal passes to PLC before and after water content detector and lower coal water content detector are dried what is measured, and PLC judgement is
It is no to reach scheduled drying effect, if drying effect is unsatisfactory for requiring, controls blower variable frequency device VVVF and improve air blast electromechanics
Machine revolving speed improves drying efficiency to increase the blow rate required of exhaust gas blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821034432.4U CN208653090U (en) | 2018-07-02 | 2018-07-02 | A kind of coal tower drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821034432.4U CN208653090U (en) | 2018-07-02 | 2018-07-02 | A kind of coal tower drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208653090U true CN208653090U (en) | 2019-03-26 |
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ID=65782411
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821034432.4U Active CN208653090U (en) | 2018-07-02 | 2018-07-02 | A kind of coal tower drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208653090U (en) |
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2018
- 2018-07-02 CN CN201821034432.4U patent/CN208653090U/en active Active
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