CN111336496A - Biomass Boiler Safety Combustion Device - Google Patents

Abstract

The invention discloses a biomass boiler safe combustion device, which belongs to the technical field of combustion equipment and comprises a fuel feeding mechanism, a gasification chamber, a combustion assembly, a combustion chamber and a waste gas treatment assembly, wherein the fuel feeding mechanism comprises a feed hopper, a conveyor, an air blower and an air inlet pipe; the combustion assembly is arranged between the outlet of the gasification chamber and the air inlet of the combustion chamber; the waste gas outlet of the combustion chamber is connected with the waste gas treatment component. Through fuel feed mechanism with biomass fuel and air transport to the gasification indoor, the gas that produces through the gasification room is lighted through combustion assembly and combustion chamber, and the waste gas that the gas burning produced realizes discharge to reach standard after the exhaust-gas treatment subassembly is handled. The invention can avoid the exhaust of waste gas, is safe, environment-friendly and harmless, effectively reduces the concentration of harmful gas, prevents the environment from being polluted, and harms the human health.

Description

Biomass Boiler Safety Combustion Device

technical field

The invention belongs to the technical field of combustion equipment, and in particular relates to a biomass boiler safety combustion device.

Background technique

As a clean and renewable energy, biomass energy has become the fourth largest energy source after oil, natural gas and coal. More and more biomass boilers have replaced the original coal-fired boilers. A large amount of ash and dust generated during boiler combustion seriously affects the ecological environment and people's physical and mental health. The charcoal smoke also contains a small amount of acetaldehyde with a special odor, which often causes people to feel nausea and dizziness. Industrial combustion components currently on the market It cannot be fully burned, resulting in excessive exhaust gas, affecting the environment, and causing harm to the human body.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a biomass boiler safe combustion device, which aims to solve the technical problem of the above-mentioned prior art that biomass boiler combustion produces a large amount of dust which affects the ecological environment and human health.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is:

A biomass boiler safety combustion device, comprising a fuel feeding mechanism, a gasification chamber, a combustion assembly, a combustion chamber and a waste gas treatment assembly, the fuel feeding mechanism includes a feeding hopper, a conveyor, a blower and an air inlet pipe, and the The outlet of the feeding hopper is connected with the inlet of the conveyor, the outlet of the conveyor is connected with the feeding port of the gasification chamber, the air inlet of the blower is connected with the air inlet pipe, and the air outlet is connected with the gasification chamber; The combustion assembly is arranged between the outlet of the gasification chamber and the air inlet of the combustion chamber; the exhaust gas outlet of the combustion chamber is connected with the exhaust gas treatment assembly.

Preferably, the conveyor is a screw conveyor, the outlet of the feed hopper is communicated with a feed pipe, the feed pipe is connected with the inlet of the screw conveyor; the outlet of the screw conveyor is communicated with the discharge pipe , the discharge pipe is butted with the feed port of the gasification chamber; the side wall of the discharge pipe is connected with the blower through the air discharge pipe.

Preferably, the gasification chamber is a hollow sealed box, and the side walls of the box are respectively provided with a feed inlet, an air inlet connected to the outlet of the blower, and a gas outlet connected to the inlet of the combustion assembly. A temperature controller is provided on the outer surface of the chamber.

Preferably, the six walls of the box body are provided with sealing layers; the temperature controller is arranged on the outer surface of the gasification chamber, and the surface of the temperature controller is provided with a display screen and a temperature control button.

Preferably, an observation window is provided on the outer surface of the gasification chamber, and the observation window is arranged below the temperature controller.

Preferably, the combustion assembly includes a burner, a throat, a gas gun, a gun head and a combustion controller, the burner and the throat are arranged coaxially, the burner is arranged in the middle of the throat, and the throat Several gas guns are radially arranged around the mouth, and the gun head of the gas gun is arranged on the installation ring line around the throat; the gun head is provided with an igniter; the burner and the gas gun are both electrically connected with the combustion controller .

Preferably, the control panel of the combustion controller is provided with an igniter switch button and a mixed gas adjustment button, which are used to control the action of the igniter and the mixing ratio of gas and air.

Preferably, a temperature gauge is provided on the combustion chamber, and the temperature gauge is arranged on the top of the combustion chamber through a fixing rod.

Preferably, the exhaust gas treatment assembly includes a pressure-resistant pipe, an exhaust gas processor and a negative pressure fan, the inlet of the pressure-resistant pipe is connected to the exhaust gas outlet of the combustion chamber, and the outlet of the pressure-resistant pipe is connected to the inlet of the exhaust gas processor , the outlet of the exhaust gas processor is connected with the inlet of the negative pressure fan.

The beneficial effect of adopting the above technical scheme is: compared with the prior art, the biomass boiler safety combustion device of the present invention transports biomass fuel and air into the gasification chamber through the fuel feeding mechanism, and the fuel is thermochemically heated in the gasification chamber. After the reaction, gas is generated, and after the gas is ignited through the combustion component and the combustion chamber, the heat generated by the combustion of the gas is transferred to the boiler, and the generated waste gas is treated by the waste gas treatment component to achieve standard discharge. The use of the present invention can avoid waste gas discharge, is safe and environmentally friendly without harm, effectively reduces the concentration of harmful gases, prevents environmental pollution and endangers human health.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

1 is a schematic structural diagram of a biomass boiler safe combustion device provided in an embodiment of the present invention;

Fig. 2 is the structural representation that the biomass boiler safety combustion device in Fig. 1 is installed in the volute;

Fig. 3 is the schematic diagram of the airflow direction of the turbine in Fig. 2;

Fig. 4 is the structural representation of turbine in the prior art;

Fig. 5 is the use state diagram of turbine among Fig. 4;

6 is a schematic diagram of a combustion chamber structure;

Figure 7 is a schematic structural diagram of an exhaust gas treatment assembly;

In the figure: 1, fuel feeding mechanism; 11, feeding hopper; 12, feeding pipe; 13, stirring device; 14, discharging pipe; 15, air outlet pipe; 151, connecting short joint; 16, blower; 17 , air inlet pipe;

2. gasification chamber; 21. temperature controller; 211, display screen; 212, temperature control button; 22, observation window; 23, sealing layer; 24, feed inlet; 25, gas inlet; 26, gas outlet;

3. Combustion components; 31. Burner; 32. Throat; 33. External air gun; 34. Gun tip; 35. Gun tip installation ring; 36. Burner controller; 361. Igniter switch button; 362. Mixing gas adjustment button;

4. Combustion chamber; 41. Temperature display table; 42. Fixed rod; 43. Insulation layer; 44. Exhaust gas outlet; 45. Burner installation port;

5. Exhaust gas treatment components; 51. Pressure-resistant pipe; 52. Exhaust gas processor; 53. Negative pressure fan.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to Figures 1 and 2, the biomass boiler safety combustion device provided by the present invention will now be described. The biomass boiler safety combustion device includes a fuel feeding mechanism 1, a gasification chamber 2, a combustion assembly 3, a combustion chamber 4 and an exhaust gas treatment assembly 5. The fuel feeding mechanism 1 includes a feeding hopper 11 and a conveyor 13. , blower 16 and air inlet pipe 17, the outlet of the feed hopper 11 is connected with the inlet of the conveyor 13, the outlet of the conveyor 13 is connected with the feed port 24 of the gasification chamber 2, the inlet of the blower 16 The air outlet is connected to the air inlet pipe 17, and the air outlet is connected to the gasification chamber 2; the combustion assembly 3 is arranged between the outlet of the gasification chamber 2 and the air inlet of the combustion chamber 4; the exhaust gas outlet 44 of the combustion chamber 4 Connected to the exhaust gas treatment assembly 5 . In order to facilitate transportation, the fuel feeding mechanism 1 can be installed on the rack, and the air inlet pipe 17 extends through the rack to the outside. The biomass fuel is transported to the gasification chamber through the feed hopper and conveyor, and the outside air is pumped into the gasification chamber by the blower.

In a specific embodiment of the present invention, as shown in FIG. 2 , the conveyor 13 is a screw conveyor, the outlet of the feeding hopper 11 is communicated with the feeding pipe 12 , and the feeding pipe 12 is connected with the screw conveyor The inlet of the machine is butted; the outlet of the screw conveyor is connected with the discharge pipe 14, and the discharge pipe 14 is butted with the feed port 24 of the gasification chamber 2; the side wall of the discharge pipe 14 passes through the air outlet pipe 15 is connected with the blower 16, which can discharge the air in the screw conveyor to the blower, and the air outlet pipe is connected with the blower through the connecting short joint 151, which is convenient for loading, unloading and maintenance. Due to the accumulation of gas in the closed space in the screw conveyor, there is a potential safety hazard of explosion. The air outlet pipe is connected between the discharge pipe and the blower. First, the gas generated by the biomass fuel in the screw conveyor can be pumped to the The gasification chamber, the second is to avoid excessive gas accumulation in the screw conveyor and explosion, and ensure the normal operation of the equipment.

In a specific embodiment of the present invention, as shown in FIG. 3 , the gasification chamber 2 is a hollow sealed box body, and the side walls of the box body are respectively provided with feed ports 24 , which are connected to the outlet of the blower 16 . The gas inlet 25 and the gas outlet 26 connected to the inlet of the combustion assembly 3 are provided with a temperature controller 21 on the outer surface of the gasification chamber 2 . Wherein, the six walls of the box body are provided with sealing layers 23 to ensure that a closed space is formed in the gasification chamber, to ensure that the gasification chamber can quickly react to generate gas, and at the same time to prevent the leakage of the produced gas and improve safety; the temperature controller 21 is arranged on the outer surface of the gasification chamber 2, and the surface of the temperature controller 21 is provided with a display screen 211 and a temperature control button 212. The appropriate temperature is controlled by the temperature controller 21 to achieve the best effect.

In order to observe the reaction conditions in the gasification chamber conveniently and intuitively, an observation window 22 is provided on the outer surface of the gasification chamber 2 , and the observation window 22 is arranged below the temperature controller 21 , as shown in FIG. 1 .

In a specific embodiment of the present invention, as shown in FIG. 4 , the combustion assembly 3 includes a burner 31 , a throat 32 , a gas gun 33 , a gun head 34 and a combustion controller 36 , and the burner 31 is connected to the throat 36 . The mouth 32 is arranged coaxially, the burner 31 is arranged in the middle of the throat mouth 32, a number of gas guns 33 are radially arranged around the throat mouth 32, and the gun heads 34 of the gas guns 33 are arranged on the periphery of the throat mouth 32 On the installation loop line 35; the gun head 34 is provided with an igniter; the burner 31 and the gas gun 33 are both electrically connected to the combustion controller 36. Wherein, the side wall of the combustion chamber 4 is provided with a burner installation port 45 to facilitate the installation of the burner. With the help of the gun head, the external air and the gas in the combustion gun are mixed in the burner. After the mixed gas is ignited by the igniter, the burning flame is sprayed to the combustion chamber through the burner installation port.

As shown in FIG. 5 , the control panel of the combustion controller 36 is provided with an igniter switch button 361 and a mixed gas adjustment button 362 for controlling the action of the igniter and the mixing ratio of gas and air. The ratio of entering the combustion chamber 4 is adjusted through the mixed gas adjustment button 362 to achieve a better contact area between air and gas, and to increase the combustion rate of gas combustion. Unnecessary accidents occur.

In a specific embodiment of the present invention, as shown in FIGS. 1 and 6 , the combustion chamber 4 is provided with a temperature gauge 41 , and the temperature gauge 41 is arranged on the top of the combustion chamber 4 through a fixing rod 42 ; the combustion chamber The six walls of 4 are provided with thermal insulation layers 43 . The mixed gas of gas and air is ignited by the igniter and then enters the combustion chamber for combustion. The boiler adjacent to the combustion chamber absorbs the heat generated by the combustion, and the burned exhaust gas enters the exhaust gas treatment component through the exhaust gas outlet 44 .

As shown in FIG. 7 , the exhaust gas treatment assembly 5 includes a pressure-resistant pipe 51 , an exhaust gas processor 52 and a negative pressure fan 53 . The inlet of the pressure-resistant pipe 51 is connected to the exhaust gas outlet 44 of the combustion chamber 4 . The outlet of the pipe 51 is connected to the inlet of the exhaust gas processor 52 , and the outlet of the exhaust gas processor 52 is connected to the inlet of the negative pressure fan 53 . Since the exhaust gas after combustion has a certain pressure, the pressure-resistant pipe is used to transport the exhaust gas to the exhaust gas processor, and the negative pressure fan can speed up the filtering speed. Among them, the exhaust gas processor can choose a multi-stage medium-efficiency filter and/or a high-efficiency filter.

In addition, the exhaust gas treatment assembly 5 can be installed in the housing to facilitate transportation and displacement.

To sum up, the present invention has the advantages of compact structure, safety and environmental protection. The biomass fuel and air are respectively transported into the gasification chamber by the screw conveyor and the blower for thermochemical reaction, and the generated gas enters the combustion chamber after being ignited by the combustion component. Fully combusted, the generated exhaust gas enters the exhaust gas processor to be filtered to achieve emission standards. The use of the invention can reduce the concentration of harmful gases in the exhaust gas, prevent environmental pollution and endanger human health.

In the above description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present invention. Similar promotions, therefore, the present invention is not limited by the specific embodiments disclosed above.

Claims (10)

1. The utility model provides a biomass boiler safety burner which characterized in that: the device comprises a fuel feeding mechanism, a gasification chamber, a combustion assembly, a combustion chamber and a waste gas treatment assembly, wherein the fuel feeding mechanism comprises a feed hopper, a conveyor, a blower and an air inlet pipe, the outlet of the feed hopper is connected with the inlet of the conveyor, the outlet of the conveyor is connected with the feed inlet of the gasification chamber, the air inlet of the blower is connected with the air inlet pipe, and the air outlet of the blower is connected with the gasification chamber; the combustion assembly is arranged between the outlet of the gasification chamber and the air inlet of the combustion chamber; and the waste gas outlet of the combustion chamber is connected with the waste gas treatment assembly.

2. The biomass boiler safety combustion device according to claim 1, characterized in that: the conveyor is a screw conveyor, an outlet of the feed hopper is communicated with a feed pipe, and the feed pipe is butted with an inlet of the screw conveyor; the outlet of the spiral conveyor is communicated with a discharge pipe, and the discharge pipe is in butt joint with the feed inlet of the gasification chamber; the side wall of the discharge pipe is connected with the air blower through the air outlet pipe.

3. The biomass boiler safety combustion device according to claim 2, characterized in that: the conveyor is a screw conveyor, an outlet of the feed hopper is communicated with a feed pipe, and the feed pipe is butted with an inlet of the screw conveyor; the outlet of the spiral conveyor is communicated with a discharge pipe, and the discharge pipe is in butt joint with the feed inlet of the gasification chamber; the side wall of the discharge pipe is connected with the air blower through the air outlet pipe.

4. The biomass boiler safety combustion device according to claim 3, characterized in that: the gasification chamber is a hollow sealed box body, a feed inlet, an air inlet connected with an outlet of the air blower and a fuel gas outlet connected with an inlet of the combustion assembly are respectively arranged on the side wall of the box body, and a temperature controller is arranged on the outer surface of the gasification chamber.

5. The biomass boiler safety combustion device according to claim 4, characterized in that: sealing layers are arranged on six walls of the box body; the temperature controller is arranged on the outer surface of the gasification chamber, and a display screen and a temperature control button are arranged on the surface of the temperature controller.

6. The biomass boiler safety combustion device according to claim 4, characterized in that: and an observation window is arranged on the outer surface of the gasification chamber and is arranged below the temperature controller.

7. The biomass boiler safety combustion device according to claim 1, characterized in that: the combustion assembly comprises a combustor, a throat, gas guns, a gun head and a combustion controller, wherein the combustor and the throat are coaxially arranged, the combustor is arranged in the middle of the throat, the plurality of gas guns are radially arranged around the throat, and the gun head of each gas gun is arranged on an installation loop line on the periphery of the throat; an igniter is arranged in the gun head; the combustor and the gas gun are electrically connected with the combustion controller.

8. The biomass boiler safety combustion device according to claim 7, characterized in that: an igniter switch button and a mixed gas adjusting button are arranged on a control panel of the combustion controller and are used for controlling the action of an igniter and the mixing ratio of gas and air.

9. The biomass boiler safety combustion device according to claim 1, characterized in that: the combustion chamber is provided with a thermometer, and the thermometer is arranged at the top of the combustion chamber through a fixing rod.

10. The biomass boiler safety combustion device according to any one of claims 1 to 9, characterized in that: the waste gas treatment component comprises a pressure-resistant pipe, a waste gas processor and a negative pressure fan, wherein the inlet of the pressure-resistant pipe is connected with the waste gas outlet of the combustion chamber, the outlet of the pressure-resistant pipe is connected with the inlet of the waste gas processor, and the outlet of the waste gas processor is connected with the inlet of the negative pressure fan.

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