CN201724384U - Energy-saving environment-friendly high temperature jet type hot blast stove - Google Patents

Abstract

An energy-saving and environment-friendly high-temperature jet-flow hot blast furnace relates to heating production equipment for tea, medicine, chemical industry, food, etc. used in conjunction with industrial production lines. The hot blast stove is composed of a furnace body connected to a waste heat recovery device, and the waste heat recovery device is connected to a sedimentation water bath dedusting pool; The pipe is connected with the chimney, and the chimney is connected with the sedimentation water bath dedusting tank. The utility model can reduce the flue gas discharged daily at about 400°C to about 100°C-130°C, thereby reducing thermal pollution and improving thermal efficiency. The furnace core of the furnace body is provided with a jet flow ring, so that the air can accelerate heat exchange, such as convection and conduction. The settling water bath dedusting tank is equipped with a particle settling chamber, which can discharge the particles above 40μ out of the flue after three times of settling, and then discharge through the water bath settling treatment.

Description

Energy saving and environmental protection high temperature jet flow hot blast furnace

technical field

The energy-saving and environment-friendly high-temperature jet flow hot air stove of the utility model relates to heating production equipment for tea, medicine, chemical industry, food, etc. used in conjunction with industrial production lines, and the output temperature can reach 280-380°C. the

Background technique

Hot blast stoves are widely used in the market, but it is still a difficult problem for everyone to solve high-temperature output and meet the needs of industrial production. For example, the heat conversion of FP14 high-temperature stove is not reasonable enough, and the waste heat taken away by the flue gas is at 300-400°C Left and right, it wastes resources, loses a lot of available heat sources, and causes thermal pollution to environmental protection, which is not worth promoting. the

Contents of the invention

The utility model provides an energy-saving and environment-friendly high-temperature jet-flow hot blast stove. the

The utility model is realized through the following technical scheme: it includes: a waste heat recovery device, a smoke delivery pipe, a smoke outlet pipe, a chimney support, a chimney, a settling water bath dust removal pool, a smoke induction motor, a smoke induction fan, a furnace body, and an air conditioning Pipe, induced fan, induced air pipe, furnace body air inlet pipe, hot air pipe, wherein the furnace body is composed of furnace door, chassis, shell, furnace core, jet ring, combustion air outlet, air duct, flue, Expansion ring, furnace body air inlet, smoke outlet, hot air outlet, furnace bridge, refractory bricks, base, etc.; the waste heat recovery device consists of lower flue, upper flue, lower air duct, upper air duct, air duct return chamber, Flue return chamber and other components. the

The hot blast stove is composed of a furnace body connected to a waste heat recovery device, and the waste heat recovery device is connected to a sedimentation water bath dust removal pool; the smoke outlet of the furnace body is connected to a smoke delivery pipe, and the smoke delivery pipe is connected to the lower flue of the waste heat recovery device. The outlet pipe is connected to the chimney, and the chimney is connected to the sedimentation water bath dust removal tank;

The furnace body is composed of a furnace door, a chassis, a shell, a furnace core, an air duct, and a flue. There is a flue between them; a smoke ring and a hot air ring are arranged on the chassis; the smoke ring is connected to the smoke outlet, and the hot air ring is connected to the hot air outlet; the smoke outlet is connected to the smoke delivery pipe; the hot air outlet is connected to the The hot air pipes are connected; the shell is set on the outermost layer; the front and back of the furnace bridge are 180 degrees with a furnace door and a hot air outlet, and the smoke outlet is set under the hot air outlet; side;

There is an expansion ring at the connection between the furnace core and the flue;

The waste heat recovery device is provided with upper and lower floors, and a flue gas return chamber and an air return chamber are arranged at the junction of the upper and lower floors. the

The top of the furnace core of the utility model is provided with four expansion rings to solve the compensation for the restriction of the furnace core due to thermal expansion to its matching size. The waste heat recovery device adopts the tube-type waste heat conduction method for waste heat recovery. The waste heat recovery device includes a lower flue and an upper flue. The flue gas enters the upper flue from the lower flue through the flue return bin; the cold air enters the upper flue from the lower flue through the air return bin for heat exchange. The waste heat recovery device can reduce the flue gas discharged daily at about 400°C to about 100°C-130°C, reducing thermal pollution and improving thermal efficiency. The furnace core of the furnace body is provided with a jet flow ring, so that the air can accelerate heat exchange, such as convection and conduction. The jet ring is provided with countless small holes to facilitate heat exchange, and symmetrical gaps are provided at the lower part of the jet ring to facilitate hot air convergence. Jet flow heat exchange at high temperature and convection heat exchange at low temperature make the design more reasonable and the thermal efficiency higher. The settling water bath dedusting tank is equipped with a particle settling chamber, which can discharge the particles above 40μ out of the flue after three times of settling, and then discharge through the water bath settling treatment. the

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is the back view of the utility model;

Fig. 4 is the main sectional view of the furnace body of the present utility model;

Fig. 5 is the A-A sectional view of body of heater of the present utility model;

Fig. 6 is the B-B sectional view of body of heater of the present utility model;

Fig. 7 is the C-C sectional view of body of heater of the present utility model;

Fig. 8 is the unfolded part diagram of the utility model spray ring;

Fig. 9 is the main sectional view of the utility model waste heat recovery device;

Figure 10 is a D-D cross-sectional view of the waste heat recovery device of the present utility model;

Fig. 11 is a main sectional view of the sedimentation water bath dedusting tank of the present invention. the

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. the

Embodiment 1: As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 6, Figure 9, Figure 10, and Figure 11, the utility model mainly includes a waste heat recovery device 1, a smoke delivery pipe 2, and a smoke outlet pipe 3 , chimney support 4, chimney 5, sedimentation water bath dedusting pool 6, smoke induction motor 7, smoke induction fan 8, furnace body 9, air regulating pipe 10, induction fan 11, induction air pipe 12, furnace body air intake pipe 13, heat Duct14. The furnace body mainly includes a furnace door 901, a chassis 902, a shell 903, a furnace core 904, a jet ring 905, a combustion air outlet 906, an air duct 907, a flue 908, an expansion ring 909, a furnace body air inlet 910, and a smoke outlet. Port 911, furnace bridge 912, refractory brick 913, base 914, hot air outlet 915, etc.; the waste heat recovery device 1 mainly includes the flue 101 including the lower flue 1011 and the upper flue 1012, and the air duct 102 includes the lower flue 1021 and the upper flue Road 1022, air duct return bin 103, flue return bin 104; the chassis 902 includes a smoke ring 9021 and a hot air ring 9023. the

The smoke outlet 911 of the furnace body 9 is connected with the smoke delivery pipe 2 , and the furnace body air inlet 910 of the furnace body 9 is connected with the air inlet 13 . The smoke delivery pipe 2 is connected to the lower flue 1011 of the waste heat recovery device 1 , and the upper flue 1012 of the waste heat recovery device 1 is connected to the smoke outlet pipe 3 . The smoke induction motor 7 is connected with a smoke induction fan 8 . The smoke induction fan is electrically connected with the smoke outlet pipe 3 . The smoke outlet pipe 3 is connected with the chimney 5 via the chimney support 4 . The chimney 5 is connected with the sedimentation dust removal tank. The air regulating pipe 10 is connected with the downflow channel 1021 of the waste heat recovery device 1 . The upper air channel 1021 of the waste heat recovery device 1 is connected with the furnace body air inlet pipe 13 through the induced draft fan 11 . The hot air pipe 14 is connected with the hot air outlet 915 of the furnace body 9 . The waste heat recovery device 1 has two upper and lower floors, and the lower layer respectively enters cold air and flue gas. A flue gas return bin 104 and an air return bin 103 are arranged at the junction of the flue gas and the upper and lower layers. The furnace body 9 is composed in such a way that the furnace bridge 912 is arranged in the furnace core 904, and the furnace core is mainly made of refractory bricks 913 and other high temperature resistant materials. The jet ring 905 is arranged outside the furnace core 904 , and the flue 908 is arranged between the jet ring 905 and the air duct 907 . The expansion ring 909 is arranged on the furnace core 904 where it connects with the flue 908, and the smoke reaches the chassis 902 to collect. The chassis 902 is provided with a smoke ring 9021 and a hot air ring 9023 . The smoke ring 9021 is connected to the smoke outlet 911 , and the hot air ring 9022 is connected to the hot air outlet 915 . The smoke outlet 911 is connected to the smoke delivery pipe 2 until the waste heat recovery device 1 performs heat exchange. The hot air outlet 915 is connected with the hot air pipe 14 to provide hot air to objects that require it. The shell 903 is arranged on the outermost layer, which isolates the heat exchange between the outside air and the air in the furnace. A furnace door 901 and a hot air outlet 915 are arranged at 180 degrees in front of and behind the furnace bridge 912, and the smoke outlet is arranged under the hot air outlet. The furnace body air inlet is arranged on one side of the furnace body base 914 . the

When the utility model is in use, coal enters through the furnace door 901, burns on the furnace bridge 912, heats the furnace core 904, starts the induced draft fan 11 and the induced smoke fan 8, and the air enters the air regulating pipe under the action of atmospheric pressure 10. Enter the lower air passage 1021 of the waste heat recovery device 1 from the air regulating pipe 10, enter the upper air passage 1022 through the air passage return chamber 103, and enter the air passage 907 from the bottom of the furnace air inlet 910 through the upper air passage 1022 through the induced draft fan 11. The heat conduction exchange with the flue 908 is mainly carried out in the duct. When the air enters the top 904 of the furnace core and the expansion ring 909, the air travels downward from the jet flow ring 905, and is mainly carried out while spraying between the furnace core 904 and the flue 908. With heat convection exchange, finally the air bottom reaches the furnace tray 902 and is collected by the hot air pipe 14 to discharge the hot air. The auxiliary air enters the furnace core 904 through the furnace bridge 912 from the bottom of the furnace body, and together with the flue gas in the furnace, it is drawn out by the expansion ring 909, passes through the flue 908 to release heat, flows to the smoke ring 9021 of the chassis 902, and is sent through the smoke pipe 2. To the lower flue 101 of the waste heat recovery device 1, pass through the lower flue 101 and collect in the flue return bin 104, then send it to the smoke outlet pipe 3 through the upper flue, and extract it to the chimney 5 through the induced smoke fan 8, and pass through the chimney The flue gas from 5 is processed by the sedimentation water bath dedusting tank 6 and discharged into the atmosphere after two sedimentation and slag removal. the

The energy-saving and environment-friendly high-temperature jet-flow hot blast stove of the utility model can provide the temperature required for food processing at 280°C-390°C, and the temperature of the flue gas discharged after the waste heat recovery is between 90°C-110°C. the

Claims (4)

1. an energy-conserving and environment-protective high temperature jet flow hot-blast stove comprises and draws the cigarette motor, draws the cigarette blower fan, airduct, and smoke pipe is characterized in that described hot-blast stove connects waste-heat recoverer by body of heater, waste-heat recoverer connects sedimentation water bath dust-removing pond and constitutes; Smoke pipe is sent in the outlet flue connection of body of heater, send smoke pipe to be connected with the lower flue of waste-heat recoverer, and the pipe of waste-heat recoverer is connected with chimney, and chimney is connected with sedimentation water bath dust-removing pond.

2. a kind of energy-conserving and environment-protective high temperature jet flow hot-blast stove as claimed in claim 1, it is characterized in that described body of heater by fire door, chassis, housing, combustion chamber, air channel, flue constitute, and grate is located in the combustion chamber, the jet flow ring is located at the outside of combustion chamber, is provided with flue between jet flow ring and air channel; The chassis is provided with cigarette ring and hot blast ring; Described cigarette ring is connected with outlet flue, and described hot blast ring is connected with hot-blast outlet; Outlet flue is connected with sending smoke pipe; Hot-blast outlet is connected with warm-air pipe; Housing is located at outermost layer; The front and back of grate become 180 degree to be provided with fire door and hot-blast outlet, and outlet flue is located under the hot-blast outlet; The body of heater air inlet is located at a side of base of furnace body.

3. a kind of energy-conserving and environment-protective high temperature jet flow hot-blast stove as claimed in claim 2 is characterized in that being provided with expansion loop with the flue connection on the combustion chamber.

4. a kind of energy-conserving and environment-protective high temperature jet flow hot-blast stove as claimed in claim 1, it is two-layer up and down to it is characterized in that described described waste-heat recoverer is provided with, and is provided with smoke backflow storehouse and air backflow storehouse in levels intersection.

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