Automatic temperature control device for garbage furnace

Abstract

The utility model relates to the technical field of garbage treatment, and particularly discloses an automatic temperature control device for a garbage furnace, which comprises an ammonia water input unit, an economizer, an SCR (selective catalytic reduction) reactor, a spray gun, a boiler, a compressed air input unit, a combustion fan, a natural gas supply unit, a burner, a flame detection unit, an ignition unit, a buffer tank and a diffusion unit. The coal economizer is communicated with the SCR reactor, the spray gun is communicated with the boiler, the ammonia water input unit and the compressed air input unit are respectively communicated with the spray gun, the combustor is fixedly connected with the boiler, each combustion fan is respectively communicated with the combustor, and each group of diffusion units is respectively communicated with the buffer tank. The combustion temperature can be kept, sufficient combustion of garbage is facilitated, generation of harmful gas and harmful particles can be reduced through sufficient combustion, the adaptability of the device system is improved, the service life of the device system is prolonged, reasonable utilization of energy is achieved, and the purpose of reducing cost is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage disposal, in particular to an automatic temperature control device for a garbage furnace. Background Art

[0002] At present, garbage furnaces, also known as garbage incinerators, are used to incinerate domestic garbage. Usually, domestic garbage is burned in the furnace and converted into waste gas that enters the secondary combustion chamber. Through high-temperature combustion, secondary oxygenation and other technical measures, the pollution discharge monitoring requirements are met. There are many types of garbage incinerators, including mechanical grate incinerators, fluidized bed incinerators, rotary incinerators and CAO incinerators.

[0003] However, in the prior art, the combustion temperature of the garbage incinerator is unstable and the combustion is incomplete, which leads to energy waste and increases harmful gases and particles. Overheating and frequent temperature fluctuations accelerate the wear and aging of the equipment. Utility Model Content

[0004] The utility model aims to provide an automatic temperature control device for a garbage furnace, aiming to solve the technical problems in the prior art that the combustion temperature of the garbage furnace is unstable, the combustion is incomplete, resulting in energy waste, while increasing harmful gases and harmful particles, and overheating and frequent temperature fluctuations will accelerate the wear and aging of the equipment.

[0005] To achieve the above-mentioned purpose, the utility model adopts an automatic temperature control device for a garbage furnace, comprising an ammonia water input unit, an economizer, an SCR reactor, a spray gun, a boiler, a compressed air input unit, a combustion-supporting fan, a natural gas supply unit, a burner, a fire detection unit, an ignition unit, a buffer tank and a dissipation unit, wherein the SCR reactor is connected to the boiler, the economizer is connected to the SCR reactor, the spray gun is connected to the boiler, the ammonia water input unit and the compressed air input unit are respectively connected to the spray gun, the burner is fixedly connected to the boiler and is located on one side of the boiler, the number of the fire detection units is multiple, each of the fire detection units is respectively arranged on one side of the burner, the ignition unit is arranged on one side of the burner, and the natural gas supply unit is connected to the ignition unit, the number of the combustion-supporting fans is multiple, each of the combustion-supporting fans is respectively connected to the burner, the buffer tank is connected to the burner, the number of the dissipation units is multiple groups, and each group of the dissipation units is respectively connected to the buffer tank.

[0006] Wherein, the ammonia water input unit includes an ammonia water solution storage tank and an ammonia water delivery pump. There are multiple ammonia water delivery pumps, and the output end of each ammonia water delivery pump is connected to the input end of the spray gun respectively, and the input ends of two ammonia water delivery pumps are connected to the ammonia water solution storage tank.

[0007] Wherein, each group of the dispersion units includes a Roots blower, a first nitrogen replacement unit and a dispersion component. There are multiple Roots blowers, and the multiple Roots blowers are connected in parallel. One end of the multiple Roots blowers is connected to the buffer tank, and the first nitrogen replacement unit and the dispersion component are respectively connected to the other end of the multiple Roots blowers.

[0008] Wherein, the garbage furnace automatic temperature control device also includes a second nitrogen replacement unit and a drainage unit, the second nitrogen replacement unit and the drainage unit are respectively connected to the buffer tank, and the second nitrogen replacement unit and the drainage unit are respectively located between the burner and the buffer tank.

[0009] The beneficial effects of the automatic temperature control device of a garbage furnace of the utility model are as follows: the combustion temperature can be maintained, which is conducive to the complete combustion of garbage. The complete combustion can reduce the generation of harmful gases and harmful particles, reduce the impact on the environment, release more heat energy, and improve the combustion efficiency. It can avoid the waste of energy caused by excessive temperature, improve the efficiency of garbage processing, and reduce manual intervention at the same time, improve the stability and reliability of equipment operation, avoid harm to workers caused by high temperature, and automatically adjust the temperature according to different garbage types and loads, improve the adaptability of the device system, extend the service life of the device system, realize the rational use of energy, and achieve the purpose of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 The utility model is a structural schematic diagram of an automatic temperature control device for a garbage furnace.

[0012] 1-ammonia solution storage tank, 2-ammonia delivery pump, 3-economizer, 4-SCR reactor, 5-spray gun, 6-boiler, 7-compressed air input unit, 8-combustion-supporting fan, 9-natural gas supply unit, 10-burner, 11-fire detection unit, 12-ignition unit, 13-buffer tank, 14-Roots blower, 15-first nitrogen replacement unit, 16-release component, 17-second nitrogen replacement unit, 18-drainage unit. DETAILED DESCRIPTION

[0013] See also Figure 1The utility model provides an automatic temperature control device for a garbage furnace, comprising an ammonia water input unit, an economizer 3, an SCR reactor 4, a spray gun 5, a boiler 6, a compressed air input unit 7, a combustion-supporting fan 8, a natural gas supply unit 9, a burner 10, a fire detection unit 11, an ignition unit 12, a buffer tank 13 and a dissipation unit, wherein the SCR reactor 4 is connected to the boiler 6, the economizer 3 is connected to the SCR reactor 4, the spray gun 5 is connected to the boiler 6, the ammonia water input unit and the compressed air input unit 7 are respectively connected to the spray gun 5, and the burner 1 0 is fixedly connected to the boiler 6 and is located on one side of the boiler 6. There are multiple fire detection units 11, each of which is respectively arranged on one side of the burner 10. The ignition unit 12 is arranged on one side of the burner 10, and the natural gas supply unit 9 is connected to the ignition unit 12. There are multiple combustion-supporting fans 8, each of which is respectively connected to the burner 10. The buffer tank 13 is connected to the burner 10. There are multiple groups of dispersion units, and each group of dispersion units is respectively connected to the buffer tank 13.

[0014] Furthermore, the ammonia water input unit includes an ammonia water solution storage tank 1 and an ammonia water delivery pump 2, and the number of the ammonia water delivery pumps 2 is multiple, and the output end of each ammonia water delivery pump 2 is respectively connected to the input end of the spray gun 5, and the input ends of the two ammonia water delivery pumps 2 are connected to the ammonia water solution storage tank 1.

[0015] Furthermore, each group of the dispersion units includes a Roots blower 14, a first nitrogen replacement unit 15 and a dispersion component 16. The number of the Roots blowers 14 is multiple, and the multiple Roots blowers 14 are connected in parallel. One end of the multiple Roots blowers 14 is connected to the buffer tank 13, and the first nitrogen replacement unit 15 and the dispersion component 16 are respectively connected to the other end of the multiple Roots blowers 14.

[0016] Furthermore, the garbage furnace automatic temperature control device also includes a second nitrogen replacement unit 17 and a drainage unit 18, the second nitrogen replacement unit 17 and the drainage unit 18 are respectively connected to the buffer tank 13, and the second nitrogen replacement unit 17 and the drainage unit 18 are respectively located between the burner 10 and the buffer tank 13.

[0017] In this embodiment, the natural gas supply unit 9 supplies fuel to the burner 10 through the ignition unit 12, and the ignition unit 12 ignites the fuel, and the burner 10 incinerates the garbage in the boiler 6. During the incineration process, the multiple fire detection units 11 monitor the combustion conditions in the burner 10 and the boiler 6. The combustion-supporting blower 8 provides the required air for the boiler 6 and the burner 10, and can also be used to adjust the temperature in the boiler 6. The exhaust gas generated by the burner 10 is replaced by the second nitrogen replacement unit 17 and then enters the buffer tank 13. At the same time, it is driven by the Roots blower 14 and sent to the second nitrogen replacement unit 17 for replacement, and then by the third plant release unit The gas is discharged or released. The waste gas generated by the garbage burned in the boiler 6 enters the SCR reactor 4 through the spray gun 5. When the waste gas passes through the spray gun 5 again, the ammonia solution in the ammonia solution storage tank 1 is pumped into the spray gun 5 by the ammonia delivery pump 2, and the waste gas is sprayed with high pressure in combination with the compressed air pumped by the compressed air input unit 7. After the high-pressure spraying, the waste gas enters the SCR reactor 4 again, and the waste gas is denitrated by the SCR reactor 4. The nitrogen oxides in the waste gas are converted into ammonia and water by using a reducing agent. The treated waste gas is then preheated and recovered by the economizer 3 to reduce the temperature of the waste gas when it is discharged. At the same time, effective energy recovery can be carried out, which effectively improves the energy utilization rate and reduces the operating cost;

[0018] It can maintain the combustion temperature and help the garbage to be fully burned. Full combustion can reduce the generation of harmful gases and harmful particles, reduce the impact on the environment, release more heat energy, improve combustion efficiency, avoid energy waste caused by excessive temperature, improve garbage processing efficiency, and reduce manual intervention. It improves the stability and reliability of equipment operation and avoids harm to workers caused by high temperature. It can automatically adjust the temperature according to different garbage types and loads, improve the adaptability of the device system, extend the service life of the device system, realize the rational use of energy, and achieve the purpose of reducing costs.

[0019] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A garbage furnace automatic temperature control device, characterized in that: It includes an ammonia input unit, an economizer, an SCR reactor, a spray gun, a boiler, a compressed air input unit, a combustion-supporting fan, a natural gas supply unit, a burner, a fire detection unit, an ignition unit, a buffer tank and a dispersion unit. The SCR reactor is connected to the boiler, the economizer is connected to the SCR reactor, the spray gun is connected to the boiler, the ammonia input unit and the compressed air input unit are respectively connected to the spray gun, the burner is fixedly connected to the boiler and is located on one side of the boiler, there are multiple fire detection units, each of which is respectively arranged on one side of the burner, the ignition unit is arranged on one side of the burner, and the natural gas supply unit is connected to the ignition unit, there are multiple combustion-supporting fans, each of which is respectively connected to the burner, the buffer tank is connected to the burner, there are multiple groups of dispersion units, and each group of dispersion units is respectively connected to the buffer tank.

2. The automatic temperature control device for a garbage furnace as claimed in claim 1, characterized in that: The ammonia water input unit includes an ammonia water solution storage tank and an ammonia water delivery pump. There are multiple ammonia water delivery pumps, and the output end of each ammonia water delivery pump is connected to the input end of the spray gun respectively, and the input ends of two ammonia water delivery pumps are connected to the ammonia water solution storage tank.

3. The automatic temperature control device for a garbage furnace as claimed in claim 2, characterized in that: Each group of the dispersion units includes a Roots blower, a first nitrogen replacement unit and a dispersion component. There are multiple Roots blowers, and the multiple Roots blowers are connected in parallel. One end of the multiple Roots blowers is connected to the buffer tank, and the first nitrogen replacement unit and the dispersion component are respectively connected to the other end of the multiple Roots blowers.

4. The automatic temperature control device for a garbage furnace as claimed in claim 3, characterized in that: The garbage furnace automatic temperature control device also includes a second nitrogen replacement unit and a drainage unit, the second nitrogen replacement unit and the drainage unit are respectively connected to the buffer tank, and the second nitrogen replacement unit and the drainage unit are respectively located between the burner and the buffer tank.

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