Furnace cupola spark capturing device
Technical field
The utility model relates to a kind of furnace cupola, especially a kind of furnace cupola capturing device.
Background technology
Its making material of common furnace cupola spark capturing device is ordinary carbon steel or stainless steel, and major function is the coarseparticulate of collecting in the furnace cupola flue dust.Owing to unburnt CO2 being arranged in the uphill process of furnace gas in the furnace cupola flue gas, after having replenished oxygen, charge door chimney, burns away, so dedusting device for cupola furnace is still higher from the flue-gas temperature that army cap one side is sucked.At blow-on, cupola drop or put when material temperature and can reach 1000 degree.Trap suffers the baking of unstable flue-gas temperature for a long time, be easy to cause distortion and the commissure fracture of trap housing, have a strong impact on the service life of trap and the result of use of spark catcher, simultaneously owing to the commissure fracture is rear so that the excessive surrounding enviroment that affected of flue gas.
Chinese patent literature (ZL 201020015590) discloses a kind of classification hot-blast air heat exchanger of cupola furnace, comprise the one-level heat-exchanger rig that is blown into cold wind by air blast, the secondary heat exchange device that links to each other with the one-level heat-exchanger rig by flue and hot air duct, three grades of heat-exchanger rigs that link to each other with the secondary heat exchange device by flue and hot air duct.This utility model is utilized smoke heat energy, has improved heat exchange efficiency, but still does not solve the problem of the yielding of spark catcher housing and commissure easy fracture.
The utility model content
The technical problems to be solved in the utility model is: a kind of furnace cupola spark capturing device that effects of energy saving and emission reduction and housing are difficult for deformation and fracture that has is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of furnace cupola spark capturing device comprises housing and cooling tube group; Described housing comprises the cooling medium inner chamber, be separately positioned on described housing bottom and top cooling medium inlet and cooling medium outlet, be separately positioned on gas approach and the exhanst gas outlet of described housing left surface and right flank; Described cooling tube group is the top and the bottom of the described cooling medium inner chamber of UNICOM respectively.
Further, furnace cupola spark capturing device described in the utility model also comprises buffer board, and described buffer board is fixed on the inside near the housing of described gas approach.
Furnace cupola spark capturing device described in the utility model also comprises the safety valve that is installed in described housing top.Described furnace cupola spark capturing device is installed in the ash port of described housing bottom.The left surface of described housing arranges a pair of gas approach.
The beneficial effects of the utility model are, solved the defective that exists in the background technology, the utility model is installed simple and convenient, can realize the collection of Cupola flue dust and the cooling of flue gas, realized simultaneously the utilization of Cupola fume afterheat, effect with energy-saving and emission-reduction has reduced greenhouse effects and atmospheric heat and polluted, and is significant to preventing global warming.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Among the figure: 1. safety valve; 2. cooling medium; 3. buffer board; 4. housing; 4-1. cooling medium inner chamber; 4-2. cooling medium inlet; 4-3. cooling medium outlet; 4-4. gas approach; 4-5. exhanst gas outlet; 5. ash port; 6. cooling tube group.
The specific embodiment
With preferred embodiment the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of furnace cupola spark capturing device as shown in Figure 1 comprises housing 4 and cooling tube group 6; Described housing 4 comprises cooling medium inner chamber 4-1, be separately positioned on described housing 4 bottoms and top cooling medium inlet 4-2 and cooling medium outlet 4-3, be separately positioned on gas approach 4-4 and the exhanst gas outlet 4-5 of described housing 4 left surfaces and right flank; Described cooling tube group 6 is the top and the bottom of the described cooling medium inner chamber 4-1 of UNICOM respectively.
Further, described furnace cupola spark capturing device also comprises buffer board 3, and described buffer board 3 is fixed on the inside near the housing 4 of described gas approach 4-4.The effect of buffer board 3 is to make furnace gas process of stream once in this device, so as fully and cooling medium 2 carry out heat exchange.
Preferably, described furnace cupola spark capturing device also comprises the safety valve 1 that is installed in described housing 4 tops.The effect of safety valve 1 is for the outlet pipe that prevents cooling medium outlet 4-3 blocks, and internal pressure is too high and set off an explosion.
Preferably, described furnace cupola spark capturing device also comprises the ash port 5 that is installed in described housing 4 bottoms.Ash port 5 can be got rid of big dust particle by being connected with cement output tank.
Preferably, the left surface of the described housing 4 of described furnace cupola spark capturing device arranges a pair of gas approach 4-4.By being set, a pair of gas approach 4-4 can realize that two furnace cupolas share a cover furnace cupola spark capturing device, have improved the service efficiency of furnace cupola spark capturing device when having reduced cost.
After adopting technique scheme, the furnace cupola flue gas is by behind this device inwall, and temperature can obviously descend and the inwall steel plate produces distortion owing to the cooling of cooling medium is difficult; Cooling medium is that cooling medium is capable of producing hot water for worker's bathing owing to directly not contacting with flue gas if adopt running water, plays heat exchanger.The utility model is owing to adopting water jacket structure, and ash-collecting port is arranged at the bottom, and cooling medium is water.
Operation principle of the present utility model is as follows: because the present invention adopts water jacket structure, ash-collecting port is arranged at the bottom, and cooling medium is water, and the inwall material is stainless steel or boiler steel, flue gas is by behind this device inwall, temperature can obviously descend and the inwall steel plate owing to the cooling of cooling medium is indeformable.Cooling medium 2 is that cooling medium 2 is capable of producing hot water for worker's bathing owing to directly not contacting with flue gas if adopt running water, plays heat exchanger.Cooling medium 2 enters from the described cooling medium inlet 4-2 of described furnace cupola spark capturing device, is full of casing by cooling tube group 6 and cooling medium inner chamber 4-1, from the described cooling medium outlet 4-3 discharge of described furnace cupola spark capturing device.The water inlet of cooling medium inlet 4-2 is controlled by water inflow control system, when surpassing design temperature, water temperature feeds back by temperature probe at delivery port, the control motor and water pump is upwards fetched water, realize that cooling medium 2 constantly enters from cooling medium inlet 4-2, tube wall and high-temperature furnace gas by cooling tube group 6 carry out flowing out from cooling medium outlet 4-3 after the heat exchange, and heated water has been realized the utilization to burner gas residual heat.In addition, check valve is installed in case aqueous reflux on the water inlet pipe of cooling medium inlet 4-2.
What describe in the above specification is the specific embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification can to before the described specific embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.