CN207659379U - A kind of high-temperature semi-coke humidifier - Google Patents
A kind of high-temperature semi-coke humidifier Download PDFInfo
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- CN207659379U CN207659379U CN201721527742.5U CN201721527742U CN207659379U CN 207659379 U CN207659379 U CN 207659379U CN 201721527742 U CN201721527742 U CN 201721527742U CN 207659379 U CN207659379 U CN 207659379U
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- semicoke
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Abstract
The utility model is related to a kind of high-temperature semi-coke humidifier, including fine grained semicoke pulping device and wetting stirrer, wetting stirrer includes tank body, semicoke entrance to be humidified, semicoke slurry entrance and the burnt slurry outlet of humidification；Fine grained semicoke pulping device includes fine grained semicoke entrance, water inlet and the outlet of semicoke slurry, and the outlet of semicoke slurry is connect with semicoke slurry entrance by Pulp pump, and semicoke slurry inlet is provided with nozzle.The utility model substitutes the water of humidification by using coke powder thin pulp, its surface tension is significantly less than the surface tension of water, it is strong with the compatibility of high temperature coke powder, hot semicoke is more easy to mix with semicoke slurry, it avoids coke powder and floats on the case where being difficult to mix on the water surface, while also eliminating a large amount of steam and carrying the problem of dust leaks.
Description
Technical field
The utility model is related to semicoke cooling humidification fields, and are more particularly related to a kind of high-temperature semi-coke humidification dress
It sets.
Background technology
In coal resources in China, the higher Young Coal proportion of volatile matter is larger, and dry base volatile matter content exists
28% or more Young Coal accounts for about 3/4 or so of national coal reserves, Young Coal of the dry base volatile matter content 35% or more
Account for about the 50% of national coal reserves.The coal that directly burns of China accounts for about the 80% of total coal amount, and the half for the coal that directly burns with
On for generating electricity, the chemical energy in many Young Coals is completely converted into thermal energy, waste in Young Coal potentially have it is high additional
Oil, gas and the chemicals of value.
In order to preferably utilize lignite, the long flame coal resource in China, in recent years, producing semicoke and heat after low order pyrolysis of coal
Vent one's spleen is further using being a kind of new process efficiently utilized, wherein semicoke and the semi-coke powder cooling generated after pyrolysis of coal is
One key link, the especially cooling of coke powder.
Semicoke spontaneous combustion and convenience in transport in order to prevent, while in order to dust-proof, storage, coke powder being facilitated to need appropriate humidification.Cause
This, all there is the cooling humidification process of the high temperature coke powder of production in above technique.
Since the coke powder temperature of pyrolysis oven whirlwind outlet is higher, simultaneously because semicoke hydrophily is bad, especially coke powder is more
Obviously, and temperature is higher, and compatibility is poorer, so, the cooling of high temperature coke powder and humidification are currently a problem.
It is mainly reflected in following several respects：
1. high temperature coke powder and water directly mix, coke powder is easy to float on the water surface, and mixing is difficult, and humidification mixing effect is bad.
2. if directly spray water in high temperature coke powder, it is easy to generate steam, drastically expands, influence equipment safety stable operation.
In the prior art, as shown in Figure 1, the pyrolysis gas of pyrolysis gas outlet initially enters one cyclonic dedusting in pyrolysis oven
Device enters back into second cyclone dust extractor after removing most crude particle dust, further dedusting, the crude particle dust in pyrolysis gas
It is collected by cyclone dust removal, is discharged by lower part unloading valve first.Then the remaining dust of pyrolysis gas carrying enters two level whirlwind
Deduster, cyclone dust collectors further collect dust therein, are discharged by the unloading valve of lower part, are removed by preceding two stage cyclone
Dirt device, 90% or more high-temperature semi-coke is separated in pyrolysis gas.Remaining pyrolysis gas and small part semi-coke powder are revolved from two level
Wind deduster excludes to enter next process.
Semi-coke powder out of two stage cyclone deduster is collected pyrolysis gas is discharged from deduster lower part, is stirred into humidification
Machine, while water enters wetting stirrer, water and semicoke by prolonged stirring and mixing by nozzle, then becomes moisture content
15%~30% or so wet semicoke, which enters the slurry system slurrying of water coke or enters feed bin, to be stored.
In above-mentioned semicoke processing mode, semicoke is directly entered wetting stirrer, and hot semicoke temperature out is very high, about
750 DEG C -650 DEG C, and circulating water temperature is 30 DEG C -40 DEG C.Hot semicoke is directly mixed with recirculated water, causes to thermally expand increase, and
It is drained through the easy to carry part dust of journey outside vapor, that is, be easy to cause flour dust overflow, while producing to the sealing performance of equipment
It influences, equipment damage is big, shortens service life of equipment.Therefore, it is necessary to be stirred first by entering back into humidification after cold burnt machine cooling
Machine is mixed, system investments are increased.
Utility model content
The utility model is in view of the above-mentioned problems, be designed to provide a kind of high-temperature semi-coke humidifier.
In order to achieve the above objectives, the utility model adopts the following technical solution：
Utility model the embodiments of the present invention provide a kind of high-temperature semi-coke humidifier comprising fine grained semicoke
Pulping device and wetting stirrer, wherein
The wetting stirrer includes tank body, the semicoke entrance to be humidified being arranged on the tank body, semicoke slurry entrance
It is exported with the burnt slurry of humidification, and the agitating device being arranged in the tank body；
The fine grained semicoke pulping device includes that fine grained semicoke entrance, water inlet and semicoke slurry export, and described half
The outlet of cinder slurry is connect with the semicoke slurry entrance by Pulp pump, and semicoke slurry inlet is provided with nozzle.
Further, the dust compartment of the semicoke entrance connection one cyclonic deduster to be humidified；
The dust compartment of the fine grained semicoke entrance connection second cyclone dust extractor.
Further, the dust compartment lower end is provided with unloading valve.
Further, the burnt slurry outlet of the humidification is connected to the burnt slurry storage device of humidification by pipeline, is arranged on the pipeline
There are Pulp pump or the burnt stock pump of humidification.
Further, the high-temperature semi-coke powder outlet of the one cyclonic deduster connection pyrolysis oven.
Further, the air inlet of the second cyclone dust extractor is connected to the pyrolysis gas of the one cyclonic deduster and goes out
Mouthful.
Further, the second cyclone dust extractor upper end is provided with pyrolysis gas outlet.
Further, the fine grained semicoke pulping device is GZJ-500 type high-speed pulping machines.
The utility model has the beneficial effects that：
The utility model substitutes the water of humidification by using coke powder thin pulp, since the surface tension of thin pulp is generally 0.03
N/m~0.05 n/m, the surface tension of water at normal temperature is generally 0.073 n/m, so the surface tension of thin pulp is obviously small
In the surface tension of water, the compatibility of itself and high temperature coke powder is increased, hot semicoke is easier to mix with semicoke slurry, avoids coke
Powder floats on the case where being difficult to mix on the water surface.A large amount of steam are also eliminated simultaneously carries the problem of dust leaks.
Dilute burnt slurry is prepared using 90% or more fine grained semicoke of the granularity no more than 0.074mm, and particle is smaller, manufactured
Thin pulp can spray into wetting stirrer by nozzle atomization, it is therefore prevented that the blocking of nozzle is also beneficial to the atomization of thin pulp.
Fine grained semicoke comes from the semicoke after second cyclone dust extractor separation, when being mixed with water, semicoke temperature
Low compared with the semicoke temperature that one cyclonic deduster obtains, water consumption is less.
Description of the drawings
Fig. 1 is the semicoke humidifier of the prior art；
Fig. 2 is the high-temperature semi-coke humidifier structural schematic diagram of one embodiment of the utility model.
Wherein：1, one cyclonic deduster, 2, second cyclone dust extractor, 3, fine grained semicoke pulping device, 4, humidification stirs
Mix machine, 5, fine grained semicoke entrance, 6, water inlet, 7, the outlet of semicoke slurry, 8, semicoke entrance to be humidified, 9, semicoke slurry enters
Mouthful, 10, Pulp pump, 11, the burnt slurry outlet of humidification, 12, pyrolysis oven, 13, high-temperature semi-coke powder outlet, 14, unloading valve.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with the accompanying drawings and implement
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this
Utility model is not used to limit the utility model.
One embodiment of the utility model provides a kind of high-temperature semi-coke air-humidification method comprising：
Fine grained semicoke and water are mixed to form semicoke slurry；
Wetting stirrer 4 is added in semicoke to be humidified, while the semicoke slurry is atomized penetrating wetting stirrer 4 and is carried out
Humidification stirring, obtains humidifying burnt slurry.
The present embodiment substitutes the water of humidification using semicoke slurry, that is, coke powder thin pulp, since the surface tension of thin pulp is generally
0.03 n/m~0.05 n/m, and the surface tension of water at normal temperature is generally 0.073 n/m, the surface tension of thin pulp is apparent
Less than the surface tension of water, the compatibility of itself and high temperature coke powder is increased, hot semicoke is easier to mix, avoid with semicoke slurry
Coke powder floats on the case where being difficult to mix on the water surface, while also eliminating a large amount of steam and carrying the problem of dust leaks.With it is existing
Cold coke machine and cold burnt machine simplify process equipment, reduce equipment investment compared with 4 coefficient technique of wetting stirrer.
In above-described embodiment, the fine grained semicoke is preferably that 90% or more granularity is not more than the fine grained of 0.074mm
Semicoke.In the semicoke slurry, fine grained semicoke mass content is 5-30%, and the water quality content is 70-95%.It is described to add
The mass percent of the water content of wet burnt slurry is 40-50%.The fine grained semicoke is what the one cyclonic deduster was collected
The 5%-20% for the semicoke quality summation that semicoke and second cyclone dust extractor are collected.Semicoke particle in semicoke slurry is smaller, system
At thin pulp can pass through nozzle atomization spray into wetting stirrer 4, it is therefore prevented that the blocking of nozzle is also beneficial to the atomization of thin pulp.
Further, it is reacted in fast pyrogenation stove 12 due to fine coal, generates high-temperature semi-coke and pyrolysis gas.Pyrolysis gas carries
High-temperature semi-coke powder is come out by high-temperature semi-coke powder outlet 13, one cyclonic deduster 1 is initially entered, wherein 70~80% or so height
Warm semicoke is collected, and enters 4 high-temperature semi-coke import of wetting stirrer by unloading valve under one cyclonic 14.Subsequent pyrolysis gas and surplus
Remaining dust enters back into two level cyclone dust removal and further collects remaining thinner dust.It is small with collecting amount, and granularity is thinner
Feature, collecting amount only have one cyclonic to receive the 3%~10% of ash quantity, 90% or more granularity≤0.074mm.According to these spies
Point is allocated as two stage cyclone dedusting ash different purposes, uses the dedusting ash of two level whirlwind and the dilute burnt slurry of water stirring system first, i.e., such as
Shown in Fig. 2, the semicoke to be humidified is the semicoke that one cyclonic deduster 1 is collected, and the fine grained semicoke is that two level whirlwind removes
The semicoke that dirt device 2 is collected.In dilute burnt slurry, coke powder content is 5%~30%, moisture 70%-95%, then utilize thin pulp and
The water coke slurry of water content 40%~50% is produced in the mixing in wetting stirrer 4 of the dedusting ash of one cyclonic deduster 1.
In one embodiment of the utility model, the concrete operations of high-temperature semi-coke humidification are：Under second cyclone dust extractor 2 is collected
High-temperature semi-coke powder, that is, fine grained the semicoke come enters fine grained semicoke pulping device 3 (as high speed is made by the unloading valve 14 of lower part
Pulp grinder).The effect of high-speed pulping machine is that coke powder mixes thin pulp processed with water, and the thin pulp made enters humidification by Pulp pump 10 and stirs
The nozzle of machine 4, the high-temperature semi-coke after being detached with one cyclonic deduster 1 after being atomized by atomizer carry out humidification stirring.
Since high temperature coke powder, that is, semicoke to be humidified can be with dilute burnt slurry mixing in time, mixing velocity is fast, so vapor
Evaporation is arranged the dust carried in the process and is greatly reduced outside, meets the needs that high-temperature semi-coke powder directly humidifies.
As shown in Fig. 2, the utility model embodiment also discloses a kind of high-temperature semi-coke humidifier comprising fine grained half
Burnt pulping device 3 and wetting stirrer 4, wherein the wetting stirrer 4 includes tank body, is arranged to be added on the tank body
Wet semicoke entrance 8, semicoke slurry entrance 9 and the burnt slurry of humidification export 11, and the agitating device being arranged in the tank body；It is described
Fine grained semicoke pulping device 3 includes fine grained semicoke entrance 5, water inlet 6 and semicoke slurry outlet 7, and the semicoke slurry goes out
Mouth 7 is connect with the semicoke slurry entrance 9 by Pulp pump 10, and is provided with nozzle at the semicoke slurry entrance 9.
On the basis of the above embodiments, the semicoke entrance 8 to be humidified is connected to the dust compartment of one cyclonic deduster 1；
The fine grained semicoke entrance 5 is connected to the dust compartment of second cyclone dust extractor 2.The dust compartment lower end is provided with unloading valve 14.
The burnt slurry outlet 11 of the humidification is connected to the burnt slurry storage device of humidification by pipeline, and the burnt stock pump of humidification is provided on the pipeline.
Specifically, the burnt slurry of water coke slurry i.e. humidification that wetting stirrer 4 makes can be sent outside by Pulp pump 10, i.e., on pipeline
Pulp pump 10 is set, and preferred design water coke starches moisture content 50% or so.Dilute burnt slurry is the moisture content 80%~90% of semicoke slurry
Then left and right squeezes into wetting stirrer 4 by Pulp pump 10 and high temperature coke powder mixes, the high-temperature semi-coke entrance of wetting stirrer 4
It is connected with the unloading valve 14 of one cyclonic deduster 1, the temperature of high-temperature semi-coke is 400 DEG C to 600 DEG C or so at this time.
In conclusion high-temperature semi-coke humidifier provided by the utility model and method, have following features：
1. semicoke to be humidified mixes humidification stirring with dilute burnt slurry and directly mixed with water instead of all hot semicokes, dilute coke is utilized
Slurry substitutes water, reduces surface tension, increases the compatibility with semicoke, so that semi-coke powder and water coke is starched mixing in time, improves
Stirring efficiency is humidified, ensure that the uniformity and effect of coke powder humidification.
It being mixed with water 2. the preparation of dilute burnt slurry is the semicoke after being detached with second cyclone dust extractor, semicoke temperature is low,
Water consumption is few.
3. due to dilute burnt slurry surface tension smaller, hot semicoke is easier to mix with mud, and coke powder and semicoke is made to mix in time,
It avoids coke powder and floats on the case where being difficult to mix on the water surface, reduce the directly unordered mixing of high-temperature semi-coke and water, drastically expand, cause
Security risk caused by making equipment superpressure also eliminates a large amount of steam and carries the problem of dust leaks.
4. since second cyclone dust extractor dedusting ash is thinner, manufactured thin pulp can spray into humidification by nozzle atomization and stir
Mix machine, it is therefore prevented that the blocking of nozzle is also beneficial to the atomization of thin pulp.
Embodiment 1
The pyrolysis gas consumption for being pyrolyzed furnace system is 100 ton hours, and pyrolysis oven raw coal consumption is 100t/h, production heat
Vent one's spleen 50,000 Nm3The high-temperature semi-coke of/h, pyrolysis oven production are 50t/h, wherein 10% or so high-temperature semi-coke powder is discharged with pyrolysis gas
Pyrolysis oven, it is 5t/h, 90% or more semicoke granularity≤0.5mm in pyrolysis gas that pyrolysis gas, which carries coke powder amount,.
Wherein semicoke temperature is 750 DEG C or so, and particularly relevant parameter is shown in Table 1.
1 high-temperature semi-coke parameter of table
Semicoke granularmetric composition in pyrolysis gas is shown in Table 2.
Semicoke granularmetric composition in 2 pyrolysis gas of table
After pyrolysis gas is by cyclone dust collectors, it is about 500 DEG C or so to collect the semicoke temperature got off, heap density 0.45t/
m3.Carrying total amount is 5t/h.Specifically, the pyrolysis gas for carrying semi-coke powder initially enters one cyclonic deduster, and wherein level-one is revolved
Wind efficiency of dust collection is 70~90% or so, and the high-temperature semi-coke powder of about 3.5~4.5t/h can be from the unloading valve under cyclone dust collectors
Discharge, enters wetting stirrer by the semicoke entrance to be humidified of wetting stirrer.
Then pyrolysis gas carries remaining high temperature coke powder and enters second cyclone dust extractor, same reason, about 0.45~
1.2t/h high-temperature semi-coke powders are from the unloading valve discharge under second cyclone dust extractor, and high-temperature semi-coke powder temperature is reduced to 400 DEG C at this time
Left and right.The semi-coke powder of the unloading valve discharge of second cyclone dust extractor enters slurrying pond or thin pulp, moisture is made in high-speed pulping machine
Content is 70%~95%.The thin pulp come out from slurrying pond or high-speed pulping machine is pressurized to 0.2 by plunger pump (Pulp pump)~
0.5MPa, subsequently into after the nozzle atomization of wetting stirrer enter wetting stirrer.
In wetting stirrer, the thin pulp and high-temperature semi-coke powder of atomization mix, humidification stirring.Be made water content 40%~
50% water coke slurry, into next process as coal water slurry boiler fuel and producer raw material.
For the present embodiment relative to directly stirring is humidified with water, advantage is as follows：
Directly water spray stirring, since the tension of normal-temperature water is only 0.073 n/m or so, and semi-coke powder is containing a small amount of burnt
Oil component causes the compatibility of the two poor, and stirring, the stirring area in wetting stirrer are humidified according to the semi-coke powder of 4.5t/h
Length >=4 meter, while also will produce a large amount of airborne dust.
And starched containing 5%~10% water coke of coke powder if sprayed into, surface tension is reduced to 0.04 n/m or so, while water
Semicoke in coke slurry is identical with coke powder property, is conducive to high temperature coke powder and water coke slurry rapid fusion.Humidification is greatly improved to stir
Mix engine efficiency.Stirring section length can shorten 50%, it is often more important that reduce airborne dust, reduce requirement of the system to sealing.
The above is only the preferred embodiment of the present invention, is not used for limiting the scope of the utility model；
If not departing from the spirit and scope of the utility model, the utility model is modified or replaced equivalently, should all be covered
In the protection domain of the utility model claims.
Claims (8)
1. a kind of high-temperature semi-coke humidifier, which is characterized in that including fine grained semicoke pulping device and wetting stirrer,
In,
The wetting stirrer includes tank body, the semicoke entrance to be humidified being arranged on the tank body, semicoke slurry entrance and plus
Wet burnt slurry exports, and the agitating device being arranged in the tank body；
The fine grained semicoke pulping device includes fine grained semicoke entrance, water inlet and the outlet of semicoke slurry, half cinder
Slurry outlet is connect with the semicoke slurry entrance by Pulp pump, and semicoke slurry inlet is provided with nozzle.
2. high-temperature semi-coke humidifier as described in claim 1, which is characterized in that the semicoke entrance to be humidified is connected to level-one
The dust compartment of cyclone dust collectors；
The dust compartment of the fine grained semicoke entrance connection second cyclone dust extractor.
3. high-temperature semi-coke humidifier as claimed in claim 2, which is characterized in that the dust compartment lower end, which is provided with, unloads ash
Valve.
4. high-temperature semi-coke humidifier as described in claim 1, which is characterized in that the burnt slurry outlet of the humidification is connected by pipeline
Logical humidification is burnt to starch storage device, and Pulp pump is provided on the pipeline.
5. high-temperature semi-coke humidifier as claimed in claim 2, which is characterized in that the one cyclonic deduster connection pyrolysis
The high-temperature semi-coke powder of stove exports.
6. high-temperature semi-coke humidifier as claimed in claim 2, which is characterized in that the air inlet of the second cyclone dust extractor
It is connected to the pyrolysis gas outlet of the one cyclonic deduster.
7. high-temperature semi-coke humidifier as claimed in claim 2, which is characterized in that the second cyclone dust extractor upper end setting
There is pyrolysis gas outlet.
8. high-temperature semi-coke humidifier as described in claim 1, which is characterized in that the fine grained semicoke pulping device is
GZJ-500 type high-speed pulping machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721527742.5U CN207659379U (en) | 2017-11-16 | 2017-11-16 | A kind of high-temperature semi-coke humidifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721527742.5U CN207659379U (en) | 2017-11-16 | 2017-11-16 | A kind of high-temperature semi-coke humidifier |
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| Publication Number | Publication Date |
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| CN207659379U true CN207659379U (en) | 2018-07-27 |
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ID=62945800
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| CN201721527742.5U Withdrawn - After Issue CN207659379U (en) | 2017-11-16 | 2017-11-16 | A kind of high-temperature semi-coke humidifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034438A (en) * | 2017-11-16 | 2018-05-15 | 北京神雾电力科技有限公司 | A kind of high-temperature semi-coke air-humidification method and device |
-
2017
- 2017-11-16 CN CN201721527742.5U patent/CN207659379U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034438A (en) * | 2017-11-16 | 2018-05-15 | 北京神雾电力科技有限公司 | A kind of high-temperature semi-coke air-humidification method and device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201111 Address after: 102209 226, 2nd floor, building 71, 30 Litang Road, Changping District, Beijing Patentee after: Beijing Hengfeng Yaye Technology Development Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town kamis Road No. 18 building 201 room 2 Patentee before: BEIJING SHENWU POWER TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20180727 Effective date of abandoning: 20230630 |
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