CN203494339U - Closed tail gas dry-method purification recycling device capable of automatically controlling temperature of calcium carbide furnace - Google Patents
Closed tail gas dry-method purification recycling device capable of automatically controlling temperature of calcium carbide furnace Download PDFInfo
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- CN203494339U CN203494339U CN201320468755.5U CN201320468755U CN203494339U CN 203494339 U CN203494339 U CN 203494339U CN 201320468755 U CN201320468755 U CN 201320468755U CN 203494339 U CN203494339 U CN 203494339U
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- cooler
- temperature
- pipeline
- calcium carbide
- tail gas
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Abstract
The utility model discloses a closed tail gas dry-method purification recycling device capable of automatically controlling the temperature of a calcium carbide furnace. The closed tail gas dry-method purification recycling device comprises a jacket cooler which is connected with a tail gas outlet of the high-temperature calcium carbide furnace and a bag dust collector which is connected with an air purification pipe network, wherein an outlet of the jacket cooler is connected with a depth cooling system through a pipeline, and the depth cooling system is connected to the bag dust collector through a pipeline. The technology that the phase change of the working medium in a heat-tube cooler heat tube is matched with the circulating water to exchange the heat and the mechanical air cooling is adopted, so that the heat exchanging effect is good, and the temperature of the gas entering the bag dust collector is guaranteed to be 230DEG C to 255DEG C through an automatic temperature-control jacket-type cooler. The safety and high efficiency in dust collection can be guaranteed, the service life of the entire system can be greatly prolonged, and the repairing period can be reduced; the entire cooling pipeline is in serial connection, the tail gas is gradually cooled step by step, precision in control can be realized, and the optimal working condition of the dust collector can be met; and four dust collectors are in parallel connection and used for treating the tail gas in a separation manner, so that the space occupation area is small, the dust collector is convenient to transport, and vast treatment capacity can be completed.
Description
Technical field
The utility model relates to the technology that calcium carbide furnace gas reclaims field, the device that a kind of enclosed calcium carbide furnace gas is recycled specifically.
Background technology
Current China calcium carbide industry, a year generation for calcium carbide furnace gas occupies first place in the world, and along with country is to the specification requirement of calcium carbide industry production device, energy-conservation requirement, the raising of environmental requirement, also requires gradually high to the purified treatment recovery technology of calcium carbide stove exhaust.
Calcium carbide stove exhaust outlet temperature is 600 ~ 1000 degrees Celsius.Contain CO 70 ~ 90%, tar 150 ~ 600mg/Nm
3, dust 100 ~ 150mg/Nm
3, contain a small amount of H simultaneously
2, O
2, CO
2, CH
4, N
2deng, have inflammablely, explosive, dust is easily sticky, easily the characteristic such as stifled.Wherein in tail gas, the content of CO is high, and CO burning can produce a large amount of combustions heat, recycles environmental protection and energy-conservation.Because furnace gas export temperature is higher, and contain tar, tar can liquefy during lower than 230 ° at furnace gas temperature, and tar is separated out, and adheres to cloth bag, appts wall and duct wall.Dust removing effects impact on sack cleaner is larger, and long-term accumulated also can affect furnace gas and carry.And excess Temperature can cause the burning of sack cleaner cloth bag during higher than 255 degrees Celsius, even cause serious production accident, therefore the temperature that enters sack cleaner need be controlled to 230 ~ 255 ℃ of normal work that guarantee sack cleaner.
Although the current domestic process that has a lot of calcium carbide furnace gas purified treatment, all can not guarantee to enter the furnace gas temperature of deduster, can not guarantee that sack cleaner moves under safe condition or optimum state.
Summary of the invention
The purpose of this utility model be to provide a kind of can be temperature automatically controlled and can guarantee to enter deduster furnace gas temperature, thereby effectively guarantee the closed calcium carbide furnace tail gas dry process purifying recycle device of sack cleaner safe operation.
The device of the closed calcium carbide furnace tail gas dry process purifying recoverying and utilizing method that energy of the present utility model is temperature automatically controlled, comprise the jacketed cooler and the sack cleaner that is connected pure qi (oxygen) pipe network that connect the outlet of high temperature calcium carbide stove exhaust, the outlet of described jacketed cooler connects degree of depth cooling system by pipeline, and described degree of depth cooling system is connected to sack cleaner by pipeline.
Described degree of depth cooling system comprises the heat pipe cooler and the temperature automatically controlled jacket type cooler that is connected heat pipe cooler that connects jacketed cooler outlet, and described temperature automatically controlled jacket type cooler is by DCS control system regulation and control Outlet Gas Temperature.
Described heat pipe cooler comprises by pipeline successively connected one-level heat pipe cooler and secondary heat pipe cooler.
This device includes several sack cleaners that is in parallel and is connected by pipeline.
This device includes four sack cleaners.
On the pipeline between described jacketed cooler and degree of depth cooling system, be provided with cyclone dust collectors.
In the utility model, high-temperature furnace gas enters cyclone dust collectors through jacketed cooler, double wall cooler enters cyclone dust collectors after high-temperature furnace gas is lowered the temperature in advance, the effect of cyclone dust collectors is to remove impurity dust larger in high-temperature furnace gas, and high-temperature furnace gas is lowered the temperature, high-temperature furnace gas after cyclone dust collectors enters one-level heat pipe cooler and secondary heat pipe cooler, the furnace gas temperature of process heat pipe cooler is by a large amount of decline, heat pipe cooler series connection, furnace gas is from heat pipe cooler flows out, enter temperature automatically controlled jacket type cooler, the furnace gas export temperature of temperature automatically controlled jacketed cooler setting is 230 ~ 255 degrees Celsius, this equipment makes the temperature stabilization of outlet in range of set value by the magnetic valve synergy on DCS and equipment, at the furnace gas in range of set value, after thick gas blower fan pressurization, enter the sack cleaner of four same sizes, wherein sack cleaner is in parallel, furnace gas obtains clean furnace gas and flows into the recycling of pure qi (oxygen) pipe network through pure qi (oxygen) blower fan after sack cleaner dedusting.
Wherein, at cyclone dust collectors, heat pipe cooler, the dust of removing in temperature automatically controlled jacket type cooler and sack cleaner accumulates on the ash bucket below each equipment, regularly discharges, and after the scrapper conveyor of nitrogen protection enters ash silo, reclaims.Whole process system is airtight, and gained is processed furnace gas and recycled, non-secondary pollution deposits yields.
The beneficial effects of the utility model are:
(1) in whole dust pelletizing system, used heat pipe cooler as shown in the figure, described heat pipe cooler adopts Working fluid phase changing in heat pipe to coordinate recirculated water to come heat exchange and machine power air cooling to combine, and heat transfer effect is fabulous.
(2) in dust pelletizing system, used temperature automatically controlled jacket type cooler, guaranteed that accurately the furnace gas temperature that enters sack cleaner is within the scope of 230 ~ 255 °, guaranteed the safe, efficient of dedusting and can greatly extend the service life of whole system, having reduced maintenance cycle.
(3) the cooling circuit series connection of whole technique, cooling step by step, accurately controls, to meet deduster best operating condition; Four deduster parallel connections, shunting is processed, little to meet shared spatial area, and the cleaner of being convenient to transportation completes larger treating capacity.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present utility model.
In figure: 1, jacketed cooler; 2, cyclone dust collectors; 3, one-level heat pipe cooler; 4, secondary heat pipe cooler; 5, thermocouple; 6, magnetic valve; 7, temperature automatically controlled jacket type cooler; 8, thick gas blower fan; 9, sack cleaner; 10, pure qi (oxygen) blower fan; 11, explosion-proof scrapper conveyor; 12, pure qi (oxygen) pipe network.
The specific embodiment
As shown in Figure 1, the device of the closed calcium carbide furnace tail gas dry process purifying recoverying and utilizing method that energy of the present utility model is temperature automatically controlled, comprise the jacketed cooler 1 and the sack cleaner 9 that is connected pure qi (oxygen) pipe network 12 that connect the outlet of high temperature calcium carbide stove exhaust, the outlet of jacketed cooler 1 connects degree of depth cooling system by pipeline, and degree of depth cooling system is connected to sack cleaner 9 by pipeline; This degree of depth cooling system comprises the heat pipe cooler and the temperature automatically controlled jacket type cooler 7 that is connected heat pipe cooler that connects jacketed cooler 1 outlet, and temperature automatically controlled jacket type cooler 7 is by DCS control system (thermocouple 5 and magnetic valve 6) regulation and control Outlet Gas Temperature; Described heat pipe cooler comprises by pipeline successively connected one-level heat pipe cooler 3 and secondary heat pipe cooler 4; This device includes four sack cleaners 9 that are in parallel and connected by pipeline; On the pipeline between jacketed cooler 1 and one-level heat pipe cooler 3, be provided with cyclone dust collectors 2.
The utility model is in application process, the calcium carbide furnace gas that exports out from calcium carbide stove exhaust enters cyclone dust collectors through jacketed cooler and tentatively lowers the temperature and dedusting, and then enter successively one-level heat pipe cooler and secondary heat pipe cooler cooling down, finally enter temperature automatically controlled jacket type cooler and make the rough gas of furnace of calcium carbide that temperature is certain, heat pipe cooler and temperature automatically controlled jacket type cooler have certain dust removing effects, the temperature of the rough gas of furnace of calcium carbide making through above step is 250 ℃, flow is 6500Nm3/h, in the rough gas of furnace of calcium carbide, dust content is 100g/Nm3.The rough gas of furnace of calcium carbide is delivered to high temperature resistant dry bag-type dust remover through blower fan pressurization again and is carried out dust removal process, makes calcium carbide furnace gas pure qi (oxygen), and the temperature of calcium carbide furnace gas pure qi (oxygen) is 250 ℃, and flow is 6500Nm3/h, and in calcium carbide furnace gas pure qi (oxygen), dust content is 50g/Nm3.Calcium carbide furnace gas pure qi (oxygen) pressurizes through blower fan, delivers to gas burning kiln for lime burning.Wherein, furnace of calcium carbide furnace pressure is-2000～-1800Pa, and calcium carbide furnace gas temperature is 850 ℃, and flow is 6500Nm3/h, and in calcium carbide furnace gas, dust content is 300g/ Nm3.
Claims (6)
1. the closed calcium carbide furnace tail gas dry process purifying recycle device that energy is temperature automatically controlled, comprise the jacketed cooler (1) and the sack cleaner (9) that is connected pure qi (oxygen) pipe network (12) that connect the outlet of high temperature calcium carbide stove exhaust, it is characterized in that, the outlet of described jacketed cooler (1) connects degree of depth cooling system by pipeline, and described degree of depth cooling system is connected to sack cleaner (9) by pipeline.
2. install as claimed in claim 1, it is characterized in that, described degree of depth cooling system comprises the heat pipe cooler and the temperature automatically controlled jacket type cooler (7) that is connected heat pipe cooler that connects jacketed cooler (1) outlet, and described temperature automatically controlled jacket type cooler (7) is by DCS control system regulation and control Outlet Gas Temperature.
3. device as claimed in claim 2, is characterized in that, described heat pipe cooler comprises by pipeline successively connected one-level heat pipe cooler (3) and secondary heat pipe cooler (4).
4. install as claimed in claim 1, it is characterized in that, this device includes several sack cleaners (9) that is in parallel and is connected by pipeline.
5. install as claimed in claim 4, it is characterized in that, this device includes four sack cleaners (9).
6. install as claimed in claim 1, it is characterized in that, on the pipeline between described jacketed cooler (1) and degree of depth cooling system, be provided with cyclone dust collectors (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320468755.5U CN203494339U (en) | 2013-08-02 | 2013-08-02 | Closed tail gas dry-method purification recycling device capable of automatically controlling temperature of calcium carbide furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320468755.5U CN203494339U (en) | 2013-08-02 | 2013-08-02 | Closed tail gas dry-method purification recycling device capable of automatically controlling temperature of calcium carbide furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203494339U true CN203494339U (en) | 2014-03-26 |
Family
ID=50325347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320468755.5U Expired - Fee Related CN203494339U (en) | 2013-08-02 | 2013-08-02 | Closed tail gas dry-method purification recycling device capable of automatically controlling temperature of calcium carbide furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203494339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372360A (en) * | 2013-08-02 | 2013-10-30 | 合肥合意环保科技工程有限公司 | Automatic temperature control dry method for purification and recycling of enclosed calcium carbide furnace tail gas and device for the method |
-
2013
- 2013-08-02 CN CN201320468755.5U patent/CN203494339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372360A (en) * | 2013-08-02 | 2013-10-30 | 合肥合意环保科技工程有限公司 | Automatic temperature control dry method for purification and recycling of enclosed calcium carbide furnace tail gas and device for the method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20190802 |