CN205261604U - Hot -blast system of recycling of boiler tail gas - Google Patents
Hot -blast system of recycling of boiler tail gas Download PDFInfo
- Publication number
- CN205261604U CN205261604U CN201521056648.7U CN201521056648U CN205261604U CN 205261604 U CN205261604 U CN 205261604U CN 201521056648 U CN201521056648 U CN 201521056648U CN 205261604 U CN205261604 U CN 205261604U
- Authority
- CN
- China
- Prior art keywords
- outlet
- dedusting
- gas
- purifying device
- hot blast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model relates to a hot -blast system of recycling of boiler tail gas, include: boiler tail gas conveyer pipe, dust purification device A, cold air transportation pipe, three -way pipe, hot -blast pipeline, liquid conveying pipe, spray drying tower, gas -solid pipeline, cyclone, product outlet, waste gas conveyer pipe, dust purification device B, evacuation pipe. This hot -blast system of recycling of boiler tail gas, make boiler tail gas hot -blast through dust removal purification, mend cold cooling and become net hot -blastly, as the heat source of spray drying tower, effectively utilized the waste heat of boiler tail gas, improved energy efficiency in the time of the environmental protection, reduced manufacturing cost.
Description
Technical field
The utility model belongs to energy-conserving and emission-cutting technology field, is specifically related to a kind of boiler exhaust gas hot blast recycling system.
Background technology
At present, for the large-sized boiler of factory and other devices, because the EGTs such as boiler smoke are higher, if boiler smoke temperature is substantially between 180～250 DEG C, have even up to 300 DEG C, directly a large amount of heat energy is not only wasted in discharge, simultaneously also contaminated environment. At present the conventional smoke heat energy way of recycling of heating furnace is to adopt heat exchanger preheated air, but flue-gas temperature after preheated air is still higher, often adopts toward the mode of mixing cold wind in flue gas and makes to discharge after its cooling, the partial heat energy that the method can only recovered flue gas. Have the method that adopts waste heat boiler to utilize flue gas waste heat recovery steam, but often some areas do not have the steam that effective approach utilization produces, thereby cause energy waste yet.
In polyaluminium chloride production line, need in spray drying tower, be graininess polyaluminium chloride through heated-air drying by liquid polyaluminium chloride, the inlet temperature of hot blast is generally 250 DEG C of left and right, and hot blast often derives from burning coal gas, has additionally consumed fuel, has increased energy consumption.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of boiler exhaust gas hot blast recycling system, first boiler exhaust gas hot blast is passed through to dedusting and purifying device, obtain pure hot blast, mend cold air, make the temperature of hot blast drop to 250 DEG C, as the thermal source of spray drying tower, in order to dry polyaluminium chloride solution.
The concrete technical scheme of the utility model is as follows:
A kind of boiler exhaust gas hot blast recycling system, comprising: boiler exhaust gas carrier pipe, dedusting and purifying device A, cold air carrier pipe, three-way pipe, hot blast conveying pipe road, liquid delivery tube, spray drying tower, gas-solid conveyance conduit, cyclone separator, product outlet, waste gas pipeline, dedusting and purifying device B, evacuated tube.
Described boiler exhaust gas hot blast recycling system, annexation between each equipment is: boiler exhaust gas carrier pipe is connected with dedusting and purifying device A entrance, dedusting and purifying device A outlet is connected with three-way pipe entrance, cold air carrier pipe entrance is connected with three-way pipe entrance, three-way pipe outlet is connected with hot blast conveying pipe road, hot blast conveying pipe road is connected with spray drying tower entrance, liquid delivery tube is connected with spray drying tower, spray drying tower outlet is connected with gas-solid conveyance conduit entrance, the outlet of gas-solid conveyance conduit is connected with cyclone separator, solid outlet is established in cyclone separator lower end, the upper end outlet of cyclone separator is connected with waste gas pipeline road entrance, the outlet of waste gas pipeline road is connected with dedusting and purifying device B entrance, dedusting and purifying device B outlet is connected with evacuated tube.
Further, dedusting and purifying device A is Yi Ge five road desulfation dust-extraction devices, and dedusting and purifying device B is wet dust separater. The Main Function of dedusting and purifying device A: purification boiler tail gas, remove the dust in boiler exhaust gas, make be controlled at≤50mg/m of solid content in the pure hot blast in dedusting and purifying device A exit3。
Further, the elevation angle of the gas-solid conveyance conduit of connection spray drying tower and cyclone separator is 10～45 °.
Operation principle of the present utility model: by the boiler exhaust gas of 300 DEG C (a kind of thermal source feed unit), by udst separation and supplementary a small amount of cold air, be converted into the pure hot blast of 250 DEG C, as the thermal source (a kind of thermal source requirement unit) of spray drying tower, in order to dry polyaluminium chloride solution.
The beneficial effects of the utility model are:The utility model adopts technique scheme, and this smoke waste heat utilization system is simple in structure, and exhaust heat utilization effect is good, has reduced the production cost of enterprise when protection of the environment.
Brief description of the drawings
A kind of boiler exhaust gas hot blast recycling of Fig. 1 system schematic, in Fig. 1,1, boiler exhaust gas carrier pipe; 2, dedusting and purifying device A; 3, cold air carrier pipe; 4, three-way pipe; 5, hot blast conveying pipe road; 6, liquid delivery tube; 7, spray drying tower; 8, gas-solid conveyance conduit; 9, cyclone separator; 10, product outlet; 11, waste gas pipeline; 12, dedusting and purifying device B; 13, evacuated tube;
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage more cheer and bright, with the following Examples and accompanying drawing, the utility model is described in further detail, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
A kind of boiler exhaust gas hot blast recycling system as shown in Figure 1, the boiler exhaust gas that comprises 300 DEG C enters dust arrester A through boiler exhaust gas carrier pipe 1, after entering three-way pipe 4 after udst separation and mixing with the cold air of 25 DEG C that enter through cold air carrier pipe 3, become the hot blast of 250 DEG C, the hot blast of 250 DEG C enters spray drying tower 7 through hot blast conveying pipe road 5, liquid to be dried enters spray drying tower 7 through liquid delivery tube 6 and carries out exchange heat with hot blast, liquid to be dried becomes solid and enters gas-solid conveyance conduit 8 with the outlet of the spray-dried tower 7 of hot blast after heat exchange, gas-solid conveyance conduit 8 is connected with cyclone separator 9, in cyclone separator 9, gas-solid is separated, solid enters packet assembler through cyclone separator outlet 10, gas and small part dust are through the outlet of cyclone separator 9, enter waste gas pipeline road 11, waste gas pipeline road 11 is connected with dedusting and purifying device B, waste gas is through dedusting and purifying device B, after udst separation is up to standard, drain into high aerial through evacuated tube 13.
Wherein, dedusting and purifying device A is Yi Ge five road desulfation dust-extraction devices, and dedusting and purifying device B is wet dust separater. The Main Function of dedusting and purifying device A: purification boiler tail gas, remove the dust in boiler exhaust gas, make be controlled at≤50mg/m of solid content in the pure hot blast in dedusting and purifying device A exit3。
Further, the elevation angle of the gas-solid conveyance conduit 8 of connection spray drying tower 7 and cyclone separator 9 is 10～45 °.
Claims (3)
1. a boiler exhaust gas hot blast recycling system, comprising: boiler exhaust gas carrier pipe, dedusting and purifying device A, cold air carrier pipe, three-way pipe, hot blast conveying pipe road, liquid delivery tube, spray drying tower, gas-solid conveyance conduit, cyclone separator, product outlet, waste gas pipeline, dedusting and purifying device B, evacuated tube, it is characterized in that, annexation between each equipment is: boiler exhaust gas carrier pipe is connected with dust arrester A entrance, dedusting and purifying device A outlet is connected with three-way pipe entrance, cold air carrier pipe entrance is connected with three-way pipe entrance, three-way pipe outlet is connected with hot blast conveying pipe road, hot blast conveying pipe road is connected with spray drying tower entrance, liquid delivery tube is connected with spray drying tower, spray drying tower outlet is connected with gas-solid conveyance conduit entrance, the outlet of gas-solid conveyance conduit is connected with cyclone separator, solid outlet is established in cyclone separator lower end, the upper end outlet of cyclone separator is connected with waste gas pipeline road entrance, and the outlet of waste gas pipeline road is connected with dedusting and purifying device B entrance, and dedusting and purifying device B outlet is connected with evacuated tube.
2. boiler exhaust gas hot blast recycles system according to claim 1, it is characterized in that, dedusting and purifying device A is Yi Ge five road desulfation dust-extraction devices, and dedusting and purifying device B is wet dust separater.
3. boiler exhaust gas hot blast recycles system according to claim 1, it is characterized in that, the elevation angle that connects the gas-solid conveyance conduit of spray drying tower and cyclone separator is 10～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056648.7U CN205261604U (en) | 2015-12-17 | 2015-12-17 | Hot -blast system of recycling of boiler tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056648.7U CN205261604U (en) | 2015-12-17 | 2015-12-17 | Hot -blast system of recycling of boiler tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205261604U true CN205261604U (en) | 2016-05-25 |
Family
ID=56003130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521056648.7U Expired - Fee Related CN205261604U (en) | 2015-12-17 | 2015-12-17 | Hot -blast system of recycling of boiler tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205261604U (en) |
-
2015
- 2015-12-17 CN CN201521056648.7U patent/CN205261604U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204438718U (en) | Residual heat from boiler fume drying brown coal system and boiler smoke system | |
| CN104949537A (en) | Direct absorption type product waste heat recovery system and method for granule calcination rotary kiln | |
| CN104654874B (en) | Acid regeneration unit waste gas residual heat reclaims and exhaust treatment system and method | |
| CN204114893U (en) | Residual heat from boiler fume recycle device | |
| CN103724438A (en) | Waste heat utilization type starch air current drying machine | |
| CN203731460U (en) | System for drying fuel by waste smoke gas in biomass power plant | |
| CN205170640U (en) | Utilize solar energy self -heating series connection heat pipe heat exchange efficient drying mud system | |
| CN104231677A (en) | Carbon black wet-method granulation drying system and carbon black wet-method granulation drying process | |
| CN205261604U (en) | Hot -blast system of recycling of boiler tail gas | |
| CN203323137U (en) | Recycling device for high-temperature flue gas of fuel coal | |
| CN103234206B (en) | Recycling method and recycling device of fire coal high temperature flue gas | |
| CN204007178U (en) | Heat-treatment furnace flue gas waste heat utilization device | |
| CN203625272U (en) | Waste heat utilization type starch airflow dryer | |
| CN102923719A (en) | Dry tail gas waste heat recovery system for white carbon black production | |
| CN204022721U (en) | A kind of dry system of processing of carbon black wet granulation | |
| CN211625867U (en) | Salt drying tail gas waste heat recovery system | |
| CN203625414U (en) | Dry cloth-bag dust removal device for carbon steel converter capable of recovering waste heat in whole process | |
| CN203286573U (en) | Salty waste water burning system | |
| CN203971682U (en) | The hot flue gas processing device of a kind of fine cleaned coal drying system | |
| CN206847409U (en) | A kind of grate-cooler | |
| CN104147884B (en) | The hot flue gas treating process of a kind of fine cleaned coal drying system | |
| CN204474706U (en) | Converter gas purification and residual neat recovering system | |
| CN205391950U (en) | Device is used multipurposely to tail gas | |
| CN204901734U (en) | Novel waste heat of boiler flue gas recovery system | |
| CN204757718U (en) | Aggregate is calcined rotary kiln product waste heat and is directly inhaled formula recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |