Biomass hot blast stove

Abstract

The utility model discloses a biomass hot-blast stove, which relates to the technical field of hot-blast stoves, and comprises a stove body, the stove body is provided with a first chamber, a second chamber, a third chamber and a fourth chamber from inside to outside in sequence, the fourth chamber is connected with a fresh air inlet pipe, the fresh air inlet pipe is connected with a main air feeder, and the main air feeder is connected with a hot-blast stove. An air inlet of the main air feeder is connected with a heat exchanger, an air inlet of the heat exchanger is communicated with the atmosphere, a hot air inlet of the heat exchanger is communicated with the second cavity through a pipeline, hot air exhausted by the second cavity enters the heat exchanger, and meanwhile external fresh air enters the heat exchanger to conduct heat exchange with the hot air. The heat exchanger is used for heating fresh air and feeding the heated fresh air into the boiler through the main air feeder, so that flue tail gas waste heat is used for heat exchange through the heat exchanger, hot air subjected to heat exchange is fed into the boiler, and the effect of saving energy is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -blast stove technical field, concretely is a kind of biomass hot -blast stove. BACKGROUND

[0002] Grain dryer refers to hot air drying box, adopts cyclone heating device, can produce a large amount of hot air in short time, it can reach kill insect eggs by high-temperature treatment, completely solve the problem of grain drying.

[0003] In prior art, grain drying is mostly adopted tower type drying equipment, which uses biomass fuel as heat generator, and the hot gas generated is directly introduced into drying tower, and such drying equipment with direct hot gas supply has many deficiencies, for example, when replacing fresh air of hot blast furnace, the fresh air from outside is directly introduced into boiler, and the heat generated by boiler combustion heats the incoming fresh air, and more heat is needed to heat the fresh air, and the energy cannot be reused. INVENTION CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, and provides a kind of biomass hot -blast stove, to solve the insufficient of prior art.

[0005] The utility model aims at overcoming the insufficient of prior art, and provides a kind of biomass hot -blast stove, to solve the insufficient of prior art.

[0006] Further, the exhaust outlet of the heat exchanger is connected to the tail gas cyclone dust removal equipment, and the tail gas cyclone dust removal equipment is connected to the water tank dust removal equipment through a flue gas pipeline.

[0007] Further, an air induction fan is installed on the flue gas pipeline.

[0008] Further, a grate is arranged in the first chamber, and an upper portion of the grate is a combustion chamber, a smoke discharge passage is formed in the furnace body, the smoke discharge passage is used to connect the combustion chamber with the third chamber, and the flue gas and dust in the combustion chamber are discharged through the third chamber.

[0009] Further, a smoke discharge pipe is arranged on the water tank dust removal equipment.

[0010] Further, a fuel feeder is arranged on the side wall of the furnace body, and the fuel feeder communicates with the hearth of the furnace body.

[0011] The utility model has the advantages of:

[0012] The hot air discharged from the second chamber enters the heat exchanger. At the same time, fresh air from outside enters the heat exchanger and exchanges heat with the hot air. The fresh air is then heated and sent into the boiler by the main blower. In this way, the waste heat of the flue gas is used to exchange heat through the heat exchanger, and the heated air is sent into the boiler, thus achieving the effect of saving energy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of the furnace body in a biomass hot air furnace according to the present invention;

[0014] Figure 2 This is a top view of a biomass hot air furnace according to the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of a biomass hot air furnace according to the present invention. Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the structure of a biomass hot air furnace according to the present invention. Figure 2 ;

[0017] In the diagram, 1-furnace body, 2-first chamber, 3-second chamber, 4-third chamber, 5-fourth chamber, 6-fresh air inlet pipe, 7-main blower, 8-heat exchanger, 9-tail gas cyclone dust collector, 10-flue gas duct, 11-water tank dust collector, 12-induced draft fan, 13-grate, 14-exhaust duct, 15-exhaust pipe, 16-fuel feeder. Detailed Implementation

[0018] Example 1

[0019] like Figures 1 to 4 As shown, a biomass hot air furnace includes a furnace body 1. From the inside out, the furnace body 1 has a first chamber 2, a second chamber 3, a third chamber 4, and a fourth chamber 5. The fourth chamber 5 is connected to a fresh air inlet pipe 6, which is connected to a main blower 7. The inlet of the main blower 7 is connected to a heat exchanger 8, and the inlet of the heat exchanger 8 is open to the atmosphere. The hot air inlet of the heat exchanger 8 is connected to the second chamber 3 via a pipe. When the furnace body 1 is being ventilated, the hot air discharged from the second chamber 3 enters the heat exchanger 8. Simultaneously, fresh air from the outside enters the heat exchanger 8. The fresh air and the hot air entering the heat exchanger 8 circulate independently. The aluminum fins in the heat exchanger 8 complete the heat exchange between the fresh air and the hot air, heating the fresh air before it is sent into the furnace body 1 via the main blower 7. This utilizes the waste heat from the flue gas to exchange heat through the heat exchanger, and the heated air is then sent into the boiler, achieving energy savings.

[0020] Example 2

[0021] Based on Example 1, such asFigure 1 and Figure 2 As shown, the exhaust port of heat exchanger 8 is connected to the exhaust gas cyclone dust collector 9. The exhaust gas cyclone dust collector 9 is connected to the water tank dust collector 11 through the flue gas pipe 10. An induced draft fan 12 is installed on the flue gas pipe 10, and an exhaust pipe 15 is installed on the water tank dust collector 11. The flue gas entering the heat exchanger 8 is filtered and purified by the exhaust gas cyclone dust collector 9 and the water tank dust collector 11, and finally discharged through the exhaust pipe 15 to achieve purified emission of flue gas.

[0022] Example 3

[0023] Based on Example 2, such as Figures 1 to 4 As shown, a grate 13 is installed in the first chamber 2, and a combustion chamber is located above the grate 13. A flue gas passage 14 is provided on the furnace body 1. The flue gas passage 14 is used to connect the combustion chamber to the third chamber 4. The flue gas and dust in the combustion chamber are discharged through the third chamber 4. The flue gas passage 14 is connected to the tail gas cyclone dust collector 9 through a pipe, which can purify the flue gas generated by combustion before it is discharged.

[0024] Furthermore, a fuel feeder 16 is provided on the side wall of the furnace body 1. The fuel feeder 16 is connected to the furnace chamber of the furnace body 1 and is used to transport the combustion into the furnace chamber inside the furnace body 1. This is prior art and will not be described in detail here.

Claims

1. A biomass hot air furnace, comprising a furnace body (1), characterized in that, The furnace body (1) is provided with a first chamber (2), a second chamber (3), a third chamber (4) and a fourth chamber (5) from the inside to the outside. The fourth chamber (5) is connected to a fresh air inlet pipe (6). The fresh air inlet pipe (6) is connected to a main blower (7). The air inlet of the main blower (7) is connected to a heat exchanger (8). The air inlet of the heat exchanger (8) is connected to the atmosphere. The hot air inlet of the heat exchanger (8) is connected to the second chamber (3) through a pipe.

2. The biomass hot air furnace according to claim 1, characterized in that, The exhaust port of the heat exchanger (8) is connected to the tail gas cyclone dust removal device (9), and the tail gas cyclone dust removal device (9) is connected to the water tank dust removal device (11) through the flue gas pipe (10).

3. A biomass hot air furnace according to claim 2, characterized in that, An induced draft fan (12) is installed on the flue gas duct (10).

4. A biomass hot air furnace according to claim 1, characterized in that, A grate (13) is provided in the first chamber (2), and a combustion chamber is located above the grate (13). A smoke exhaust passage (14) is provided on the furnace body (1). The smoke exhaust passage (14) is used to connect the combustion chamber to the third chamber (4). The flue gas and dust in the combustion chamber are discharged through the third chamber (4).

5. A biomass hot air furnace according to claim 2, characterized in that, The water tank dust removal equipment (11) is equipped with a smoke exhaust pipe (15).

6. A biomass hot air furnace according to claim 1, characterized in that, A fuel feeder (16) is provided on the side wall of the furnace body (1), and the fuel feeder (16) is connected to the furnace chamber of the furnace body (1).

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