Multi-heat-source hot blast stove

Abstract

The utility model relates to the technical field of hot blast stoves, in particular to a multi-heat-source hot blast stove which comprises a burner, a main hearth is fixedly connected to the outer side of the burner, an auxiliary hearth is fixedly connected to the upper portion of the main hearth, and a carbonized combustible gas pipeline is fixedly connected to the upper portion of the auxiliary hearth. The outer side of the carbonized combustible gas pipeline is fixedly connected with an adjusting valve, the lower portion of the carbonized combustible gas pipeline is fixedly connected with a combustible burner, and the outer side of the auxiliary hearth is provided with a control system. Natural gas, oil, high-temperature waste heat flue gas and carbonized combustible gas serve as heat sources at the same time through operation of the hot-blast stove, the combustion effect is improved, it is guaranteed that heat of hot air output by the hot-blast stove is uniform and stable, and comprehensive utilization of energy is achieved. And the heat supply amount of the carbonized combustible gas is adjusted, so that the types of heat sources and the temperature of output hot air are automatically adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stoves, in particular to a multi-source hot blast stove. Background Technique

[0002] The hot blast stove is an important part of the drying system. The heating capacity and stability of the hot blast stove directly affect the production capacity of the drying system. The traditional heating method of the hot blast stove is single and can no longer meet the current requirements of green environmental protection. Especially in the biomass drying and carbonization system, a new type of multi-source hot blast stove is needed to achieve the following functions:

[0003] 1. While using natural gas or oil as fuel, it can effectively utilize the high-temperature waste heat flue gas and carbonization combustible gas generated by the carbonization system as heat sources to realize comprehensive energy utilization.

[0004] 2. It can select one or several of natural gas or oil, high-temperature waste heat flue gas, and carbonization combustible gas as heat sources according to needs, and realize automatic adjustment of the output hot air temperature.

[0005] Therefore, in order to solve the above problems, a multi-source hot blast stove is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a multi-source hot blast stove to solve the problems of the existing hot blast stoves in the above-mentioned background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A multi-source hot blast stove includes a burner, a main furnace chamber is fixedly connected to the outside of the burner, a secondary furnace chamber is fixedly connected above the main furnace chamber, a carbonization combustible gas pipeline is fixedly connected above the secondary furnace chamber, a regulating valve is fixedly connected to the outside of the carbonization combustible gas pipeline, a combustor burner is fixedly connected below the carbonization combustible gas pipeline, and a control system is arranged outside the secondary furnace chamber.

[0008] Preferably, a connecting bolt is fixedly connected to the right side of the burner, and a pressure gauge is fixedly connected above the burner.

[0009] Preferably, a connecting barrel is fixedly connected above the main furnace chamber, a furnace chamber fixing ring is fixedly connected above the connecting barrel, and furnace chamber bolts are fixedly connected to the outside of the furnace chamber fixing ring.

[0010] Preferably, a valve fixing ring is fixedly connected below the regulating valve, and a valve fixing cover is fixedly connected above the regulating valve.

[0011] Preferably, a burner limiting ring is fixedly connected below the combustor burner, and burner fixing bolts are fixedly connected above the combustor burner.

[0012] Preferably, a high-temperature waste heat flue gas inlet is fixedly connected to the outer side of the auxiliary furnace chamber, a temperature detector is fixedly connected to the outer side of the main furnace chamber, and a hot air outlet is fixedly connected to the outer side of the main furnace chamber.

[0013] Preferably, a control button is movably connected to the outer side of the control system, and a display panel is fixedly connected to the outer side of the control system.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the hot blast stove operates, high-temperature waste heat flue gas enters the auxiliary furnace chamber from the high-temperature waste heat flue gas inlet. The high-temperature waste heat flue gas will flow forward in a swirling manner along the inner wall of the auxiliary furnace chamber. The combustible gas burns at the central part of the auxiliary furnace chamber. Due to the swirling action of the flue gas, the combustion is more complete. At the same time, the hot air generated by combustion will also be in a swirling state. The hot air temperature is higher and the heat distribution is uniform. The mixed high-temperature hot air swirls into the main furnace chamber, which will improve its combustion effect. At the same time, the swirling will also accelerate the absorption of the hot air heat. The uniform hot air after mixing enters the subsequent equipment through the hot air outlet. This type of hot blast stove not only realizes that natural gas, oil, high-temperature waste heat flue gas, and carbonized combustible gas are used as heat sources at the same time, but also improves the combustion effect. At the same time, it ensures that the hot air heat output by the hot blast stove is uniform and stable, realizing the comprehensive utilization of energy. The hot blast stove is controlled by the control system. When the hot air temperature at the hot air outlet deviates from the set value, the temperature detector transmits the signal to the control system. The control system adjusts the opening degree of the regulating valve to adjust the supply heat amount of the carbonized combustible gas, so as to realize the automatic adjustment of the heat source type and the output hot air temperature.

[0015] 1. The right side of the burner of the present utility model is fixedly connected with a connecting bolt, a pressure gauge is fixedly connected above the burner, a connecting barrel is fixedly connected above the main furnace chamber, a furnace chamber fixing ring is fixedly connected above the connecting barrel, a furnace chamber bolt is fixedly connected to the outer side of the furnace chamber fixing ring, a valve fixing ring is fixedly connected below the regulating valve, a valve fixing cover is fixedly connected above the regulating valve, a burner limiting ring is fixedly connected below the combustor burner, and a burner fixing bolt is fixedly connected above the combustor burner. It can effectively utilize the high-temperature waste heat flue gas and carbonized combustible gas generated by the carbonization system as heat sources while using natural gas and oil as fuels in the biomass drying and carbonization system, improving the comprehensive utilization rate of energy.

[0016] 2. The outer side of the auxiliary furnace chamber of the present utility model is fixedly connected with a high-temperature waste heat flue gas inlet, a temperature detector is fixedly connected to the outer side of the main furnace chamber, a hot air outlet is fixedly connected to the outer side of the main furnace chamber, a control button is movably connected to the outer side of the control system, and a display panel is fixedly connected to the outer side of the control system. It can realize that the drying hot blast stove can select one or several of natural gas, oil, high-temperature waste heat flue gas, and carbonized combustible gas as heat sources according to needs, and realize the automatic adjustment of the output hot air temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view schematic diagram of the structure of the present utility model;

[0018] Figure 2 This is the side view schematic diagram of the high-temperature waste heat flue gas inlet of the structure of the present utility model;

[0019] In the figure: 1, burner; 101, connecting bolt; 102, pressure gauge; 2, main furnace chamber; 201, furnace chamber fixing ring; 202, furnace chamber bolt; 203, connecting barrel; 3, auxiliary furnace chamber; 4, carbonized combustible gas pipeline; 5, regulating valve; 501, valve fixing ring; 502, valve fixing cover; 6, combustor burner; 601, burner limit ring; 602, burner fixing bolt; 7, high-temperature waste heat flue gas inlet; 8, temperature detection; 9, hot air outlet; 10, control system; 1001, control button; 1002, display panel. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1 - Figure 2 , an embodiment provided by the present utility model:

[0022] A multi-heat-source hot blast stove includes a burner 1. A main furnace chamber 2 is fixedly connected to the outside of the burner 1. An auxiliary furnace chamber 3 is fixedly connected above the main furnace chamber 2. A carbonized combustible gas pipeline 4 is fixedly connected above the auxiliary furnace chamber 3. A regulating valve 5 is fixedly connected to the outside of the carbonized combustible gas pipeline 4. A combustor burner 6 is fixedly connected below the carbonized combustible gas pipeline 4. A control system 10 is arranged outside the auxiliary furnace chamber 3.

[0023] Further, a connecting barrel 203 is fixedly connected above the main furnace chamber 2. A furnace chamber fixing ring 201 is fixedly connected above the connecting barrel 203. A furnace chamber bolt 202 is fixedly connected to the outside of the furnace chamber fixing ring 201. By allowing the mixed high-temperature hot air to swirl into the main furnace chamber 2, its combustion effect can be improved.

[0024] Further, a valve fixing ring 501 is fixedly connected below the regulating valve 5. A valve fixing cover 502 is fixedly connected above the regulating valve 5. By controlling the regulating valve 5 through the control system 10, the amount of heat supplied by the carbonized combustible gas can be adjusted.

[0025] Furthermore, a burner limiting ring 601 is fixedly connected below the combustible burner 6, and a burner fixing bolt 602 is fixedly connected above the combustible burner 6. The carbonized combustible gas ejected from the combustible gas burner 6 burns at the central part of the secondary furnace chamber 3, which can appropriately lengthen the combustion flame of the carbonized combustible gas.

[0026] Furthermore, a high-temperature waste heat flue gas inlet 7 is fixedly connected to the outside of the secondary furnace chamber 3, a temperature detector 8 is fixedly connected to the outside of the main furnace chamber 2, and a hot air outlet 9 is fixedly connected to the outside of the main furnace chamber 2. The high-temperature waste heat flue gas enters the secondary furnace chamber 3 through the high-temperature waste heat flue gas inlet 7, and the waste heat flue gas will flow forward in a swirling manner along the inner wall of the secondary furnace chamber 3.

[0027] Furthermore, a control button 1001 is movably connected to the outside of the control system 10, and a display panel 1002 is fixedly connected to the outside of the control system 10. Through the control of the control system 10, the amount of gas entering can be adjusted.

[0028] Working principle: During the use of this device, first install the burner 1 on the main furnace 2. The fuel ejected by the burner 1 burns in the main furnace 2. The auxiliary furnace 3 is connected to the main furnace 2. An ignitable gas burner 6 and a high-temperature waste heat flue gas inlet 7 are assembled on the auxiliary furnace 3. The carbonized ignitable gas pipeline 4 is connected to the ignitable gas burner 6. A regulating valve 5 is installed in the carbonized ignitable gas pipeline 4. A temperature detector 8 is installed at the hot air outlet 9. Among them, the high-temperature waste heat flue gas inlet 7 forms a certain angle with the auxiliary furnace 3. At the same time, the high-temperature waste heat flue gas inlet 7 tangentially enters the auxiliary furnace 3. When the hot blast stove is operating, the high-temperature waste heat flue gas enters the auxiliary furnace 3 from the high-temperature waste heat flue gas inlet 7. Due to the tangential entry at a certain angle, the high-temperature waste heat flue gas will swirl forward along the inner wall of the auxiliary furnace 3. At the same time, the carbonized ignitable gas ejected by the ignitable gas burner 6 burns at the central part of the auxiliary furnace 3. Due to the swirling effect of the flue gas, the combustion flame of the carbonized ignitable gas is appropriately elongated, making the combustion more complete. At the same time, the hot air generated by the combustion will also be in a swirling state. After mixing with the high-temperature waste heat flue gas, the hot air has a higher temperature and a uniform heat distribution. The mixed high-temperature hot air swirls into the main furnace 2. Since it also swirls in, it will not only not affect the flame combustion of the burner 1, but on the contrary, it will improve its combustion effect. At the same time, the swirling will also accelerate the absorption of the hot air heat. The uniformly mixed hot air enters the subsequent equipment through the hot air outlet 9. This type of hot blast stove not only realizes the simultaneous use of natural gas, oil, high-temperature waste heat flue gas, and carbonized ignitable gas as heat sources, but also improves the combustion effect. At the same time, it ensures that the hot air heat output by the hot blast stove is uniform and stable, realizing the comprehensive utilization of energy. The hot blast stove is controlled by the control system 10. When the hot air temperature at the hot air outlet 9 deviates from the set value, the temperature detector 8 transmits the signal to the control system 10. The control system 10 adjusts the heat supply amount of the carbonized ignitable gas by controlling the opening degree of the regulating valve 5. The burner 1 is of proportional regulation type and its heat supply amount can be directly adjusted by the control system 10. At the same time, according to actual needs, the priority of different heat sources can be set. For example, when the output hot air temperature is too high, the heat supply amount of the burner 1 can be preferentially reduced until it stops. After the burner 1 stops, the heat supply amount of the carbonized ignitable gas is further reduced, so as to realize the automatic adjustment of the heat source type and the output hot air temperature.

[0029] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention; any ordinary technical personnel in the industry can smoothly implement the present invention according to the instructions in the attached drawings and the above description; however, any slight changes, modifications, and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A multi-heat-source hot blast stove, comprising: Combustion machine (1), characterized in that: a main furnace chamber (2) is fixedly connected to the outside of the combustion machine (1), a secondary furnace chamber (3) is fixedly connected above the main furnace chamber (2), a carbonized combustible gas pipeline (4) is fixedly connected above the secondary furnace chamber (3), a regulating valve (5) is fixedly connected to the outside of the carbonized combustible gas pipeline (4), a combustor burner (6) is fixedly connected below the carbonized combustible gas pipeline (4), and a control system (10) is arranged outside the secondary furnace chamber (3).

2. The multi-heat-source hot blast stove according to claim 1, characterized in that: A connecting bolt (101) is fixedly connected to the right side of the combustion machine (1), and a pressure gauge (102) is fixedly connected above the combustion machine (1).

3. The multi-heat-source hot blast stove according to claim 1, characterized in that: A connecting barrel (203) is fixedly connected above the main furnace chamber (2), a furnace chamber fixing ring (201) is fixedly connected above the connecting barrel (203), and furnace chamber bolts (202) are fixedly connected to the outside of the furnace chamber fixing ring (201).

4. The multi-heat-source hot blast stove according to claim 1, wherein: A valve fixing ring (501) is fixedly connected below the regulating valve (5), and a valve fixing cover (502) is fixedly connected above the regulating valve (5).

5. A multi-heat-source hot blast stove according to claim 1, characterized in that: A burner limiting ring (601) is fixedly connected below the combustor burner (6), and a burner fixing bolt (602) is fixedly connected above the combustor burner (6).

6. The multi-heat-source hot blast stove according to claim 1, wherein: A high-temperature waste heat flue gas inlet (7) is fixedly connected to the outside of the secondary furnace chamber (3), a temperature detector (8) is fixedly connected to the outside of the main furnace chamber (2), and a hot air outlet (9) is fixedly connected to the outside of the main furnace chamber (2).

7. The multi-heat-source hot blast stove according to claim 1, characterized in that: A control button (1001) is movably connected to the outside of the control system (10), and a display panel (1002) is fixedly connected to the outside of the control system (10).

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