CN208313068U - A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system - Google Patents
A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system Download PDFInfo
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- CN208313068U CN208313068U CN201820619962.9U CN201820619962U CN208313068U CN 208313068 U CN208313068 U CN 208313068U CN 201820619962 U CN201820619962 U CN 201820619962U CN 208313068 U CN208313068 U CN 208313068U
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Abstract
The device that the utility model relates to prevent furnace gas tar to be precipitated in a kind of mineral hot furnace dust pelletizing system, it is characterized by comprising closed submerged furnace (1), closed submerged furnace (1) is connected by water cold sleeve (4), gas pipeline (5) with shell and tube cooler (2) import, longitudinally disposed one group of the front axial flow blower (7) in parallel of shell and tube cooler (2), and axial flow blower (7) is connected by controlling route (6) with a temperature controller (9)；The blowing mouth face shell and tube cooler (2) of each axial flow blower (7) is arranged；The two sides of shell and tube cooler (2) are respectively equipped with the one side wind deflector (8) parallel with shell and tube cooler (2) side, and wind deflector (8) size and shell and tube cooler (2) side size are adapted；The gas pipeline (5) of shell and tube cooler (2) outlet is equipped with air quantity shut-off valve (10).The utility model has the advantages that benefit prevents tar in furnace gas to be precipitated, blocking cloth bag is avoided, good filterability is maintained, guarantees equipment normal use.
Description
Technical field
It is specifically a kind of to prevent mineral hot furnace using control interval temperature the utility model relates to mineral hot furnace production technology field
The device that furnace gas tar is precipitated in dust pelletizing system.
Background technique
Mineral hot furnace is generally divided into three kinds of open furnace, semi-hermetic furnace and sealed furnace forms.The furnace gas temperature that closed submerged furnace generates
Degree is 500~800 DEG C, has certain viscosity, and containing tar, tar Precipitation Temperature is 180 DEG C.According to closed submerged furnace furnace gas
In the characteristic containing tar, tar can be precipitated when the tar in high-temperature gas encounters cryogenic object or too low gas self-temperature,
It is adsorbed on tube wall on dust-collecting bag, declines its system cooling effect, finally result in furnace gas temperature and increase and burn cloth
Bag.Meanwhile tar precipitation is adsorbed on filter bag surface and improves the decline of its gas permeability, filtration resistance, finally loses filtering function.
In response to this, the domestic method generallyd use is generally divided into two kinds.The first, enter bag dust collector it
Before, electric tar trap is installed, tar removing process is first carried out.But electric tar trap is expensive, increase investment at
This, and electric discharge and spark can be generated when electric tar trap work, there are security risks；In addition, electric tar trap is in temperature
In higher situation, the effect is unsatisfactory for decoking.Second, being cooled down using washing, i.e., high-temperature flue gas initially enters aeration tower,
It is sprayed in aeration tower, is cooled down to flue gas, flue gas can be reduced to 80 DEG C, the coke in flue gas can both be precipitated in this way
Oil, and flue-gas temperature can be reduced.But this method operating cost is high, and water consumption is big, uneconomical, and washes powder after dust separation
Dirt discharge cannot be up to standard；In addition, the water containing tar forms secondary pollution, and sewage will also be handled after washing.
Therefore, it is necessary to design a kind of method and device that can cost-effectively prevent tar precipitation in furnace gas, to keep away
Antifouling and damage dust-collecting bag.
Utility model content
The purpose of this utility model is exactly in order to solve the problems in the existing technology, to provide a kind of mineral hot furnace dedusting
The method and device for preventing furnace gas tar to be precipitated in system prevents temperature too low and causes tar by control interval temperature
It is precipitated, avoids tar from being adsorbed on tube wall and dust-collecting bag and block cloth bag, maintain normal filterability, while preventing again
Temperature it is excessively high and caused by burning bag, guarantee the normal use of dust-collecting bag.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of method for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system, including be by closed submerged furnace generation temperature
500~800 DEG C of furnace gas is sent by water cold sleeve to shell and tube cooler, then is sent to high-temperature bag dust remover and carried out purified treatment,
Dust of the furnace gas through collecting when shell and tube cooler, high-temperature bag dust remover is unloaded by burying scraper to ash-storing bin, temperature bag dedusting
The filtered gas of device is delivered to gas chamber through net gas blower, it is characterised in that:
500~800 DEG C of furnace gas is down to 350 DEG C by the temperature after water cold sleeve, subsequently into shell and tube cooler
Cooled down again, the furnace gas temperature for exporting shell and tube cooler is controlled at 220~250 DEG C, is finally sent again to high-temperature bag dust remover.
When cooling, temperature controller carries out interlocked control to the axial flow blower in shell and tube cooler, passes through control shaft stream
The unlatching quantity of blower carries out temperature adjusting to the furnace gas in tubulation；When temperature is lower than 220 DEG C, respective numbers are automatically closed
Axial flow blower；When temperature is higher than 250 DEG C, the axial flow blower of respective numbers is automatically opened.
In order to realize the above-mentioned method for preventing furnace gas tar to be precipitated, the utility model additionally provides a kind of mineral hot furnace dedusting system
The device for preventing furnace gas tar to be precipitated in system, including closed submerged furnace, closed submerged furnace pass through water cold sleeve, gas pipeline and column
Chimney cooler import is connected, and shell and tube cooler outlet is connected by gas pipeline with high-temperature bag dust remover import again, high temperature
The pipeline of bag dust collector outlet connection is equipped with blower；Shell and tube cooler and high-temperature bag dust remover lower end and burying scraper phase
Even；It is characterized by:
Shell and tube cooler is set as two groups, is connected between two groups of shell and tube coolers by pipeline；
The longitudinally disposed one group of axial flow blower in parallel in the front of every group of shell and tube cooler, and axial flow blower passes through control
Route is connected with a temperature controller；
The blowing mouth face shell and tube cooler of each axial flow blower is arranged.
The two sides of shell and tube cooler are respectively equipped with the one side wind deflector parallel with shell and tube cooler side, and wind deflector is big
It is small to be adapted with shell and tube cooler side size, cool down so that the wind that axial flow blower generates passes through cooler.
The gas pipeline of shell and tube cooler outlet is equipped with air quantity shut-off valve.
In the technical solution of the utility model, the purpose that tar is precipitated in mineral hot furnace furnace gas is prevented in order to realize, passes through temperature
It spends controller to control the automatic interlock of axial flow blower, when temperature is lower than 220 DEG C, respective numbers can be closed as the case may be
Axial flow blower；When temperature is higher than 250 DEG C, the axial flow blower of respective numbers can will be opened.It with this method and device, can
It is precipitated with the tar being effectively prevented in furnace gas, guarantees that furnace gas temperature is higher than tar Precipitation Temperature and transports lower than filter bag bearing temperature
Row, so as to avoid tar adsorbs tube wall and dust-collecting bag and caused by cloth bag block, while maintaining the normal fortune of equipment
Row and use.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram for preventing furnace gas tar to be precipitated in a kind of mineral hot furnace dust pelletizing system of the utility model.
Specific embodiment
In order to which the utility model is more clearly understood, with reference to the accompanying drawing to a kind of mineral hot furnace dedusting of the utility model
The method and device for preventing furnace gas tar to be precipitated in system further illustrates that specific embodiment described herein is only used to solve
The utility model is released, is not used to limit the utility model.
As shown in Figure 1, the device for preventing furnace gas tar to be precipitated in a kind of mineral hot furnace dust pelletizing system, including closed submerged furnace 1,
Closed submerged furnace 1 is connected by water cold sleeve 4, gas pipeline 5 with 2 import of shell and tube cooler, and shell and tube cooler 2 exports again
It is connected by gas pipeline 5 with 3 import of high-temperature bag dust remover, the pipeline of the outlet of high-temperature bag dust remover 3 connection is equipped with blower 11；
Shell and tube cooler 2 and 3 lower end of high-temperature bag dust remover are connected with burying scraper 12, it is characterised in that:
Shell and tube cooler 2 is equipped with two groups side by side, can be connected by pipeline between two groups of shell and tube coolers 2；
The longitudinally disposed one group of axial flow blower 7 in parallel in the front of every group of shell and tube cooler 2, and axial flow blower 7 passes through
Control route 6 is connected with a temperature controller 9；
The blowing mouth face shell and tube cooler 2 of each axial flow blower 7 is arranged.
The two sides of shell and tube cooler 2 are respectively equipped with a face wind deflector 8；The side of wind deflector 8 and shell and tube cooler 2 is flat
Row, and size and 2 side of shell and tube cooler are in the same size, are dropped so that the cold wind that axial flow blower 7 generates passes through cooler 2
Temperature.
The gas pipeline 5 that shell and tube cooler 2 exports is equipped with air quantity shut-off valve 10.
In the utility model, closed submerged furnace 1 generates the furnace gas that temperature is 500~800 DEG C and is dropped after water cold sleeve 4
To 350 DEG C, then enter inside first group of shell and tube cooler 2 after gas pipeline 5；Shell and tube cooler 2 is equipped with one group of axis
Flow fan 7, axial flow blower 7 are controlled by temperature controller 9, can carry out cooling processing to the furnace gas in tubulation；Then furnace gas is again
Enter second group of shell and tube cooler by pipeline, principle is consistent with first group of shell and tube cooler.When output shell and tube is cooling
When the furnace gas temperature of device 2 is lower than 220 DEG C, the axial flow blower 7 of respective numbers is closed in the control of temperature controller 9；When furnace gas temperature height
When 250 DEG C, the axial flow blower 7 of respective numbers is opened in the control of temperature controller 9, to guarantee to send into high-temperature bag dust remover 3
Furnace gas temperature control at 220 DEG C ~ 250 DEG C, while avoiding tar and the blocking cloth bag and excessively high burning bag of furnace gas temperature be precipitated.By
The filtered gas of high-temperature bag dust remover 3 is delivered to gas chamber after net gas blower 11, by shell and tube cooler 2 and high temperature
The dust collected when bag dust collector 3 is unloaded by burying scraper 12 to ash-storing bin.
By the method and device of the utility model, temperature controller and axis stream can be utilized by control interval temperature
Blower is interlocked, and according to the corresponding axial flow blower of temperature conditions start and stop, is automatically controlled the temperature of furnace gas in the section of setting
In range, guarantees that furnace gas is higher than tar Precipitation Temperature and runs lower than bag dust collector filter bag bearing temperature, prevent tar in furnace gas
Precipitation, avoid blocking cloth bag the phenomenon that, maintain the good filterability of cloth bag, ensure that the normal use of equipment.
Claims (1)
1. the device for preventing furnace gas tar to be precipitated in a kind of mineral hot furnace dust pelletizing system, including closed submerged furnace (1), closed submerged furnace
(1) it is connected by water cold sleeve (4), gas pipeline (5) with shell and tube cooler (2) import, shell and tube cooler (2) exports again
It is connected by gas pipeline (5) with high-temperature bag dust remover (3) import, the pipeline of high-temperature bag dust remover (3) outlet connection is equipped with
Blower (11)；Shell and tube cooler (2) and high-temperature bag dust remover (3) lower end are connected with burying scraper (12)；It is characterized by:
Longitudinally disposed one group of the front axial flow blower (7) in parallel of shell and tube cooler (2), and axial flow blower (7) passes through control
Route (6) is connected with a temperature controller (9)；
The blowing mouth face shell and tube cooler (2) of each axial flow blower (7) is arranged；
The two sides of shell and tube cooler (2) are respectively equipped with the one side wind deflector (8) parallel with shell and tube cooler (2) side, gear
Aerofoil (8) size and shell and tube cooler (2) side size are adapted；
The gas pipeline (5) of shell and tube cooler (2) outlet is equipped with air quantity shut-off valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820619962.9U CN208313068U (en) | 2018-04-27 | 2018-04-27 | A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820619962.9U CN208313068U (en) | 2018-04-27 | 2018-04-27 | A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313068U true CN208313068U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820619962.9U Active CN208313068U (en) | 2018-04-27 | 2018-04-27 | A kind of device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system |
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| CN (1) | CN208313068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731487A (en) * | 2018-04-27 | 2018-11-02 | 安徽宸瑞节能环保科技工程有限公司 | A kind of method and device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system |
-
2018
- 2018-04-27 CN CN201820619962.9U patent/CN208313068U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731487A (en) * | 2018-04-27 | 2018-11-02 | 安徽宸瑞节能环保科技工程有限公司 | A kind of method and device for preventing furnace gas tar to be precipitated in mineral hot furnace dust pelletizing system |
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