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Fuel oil or natural gas and tobacco stem integrated boiler and pollutant control method

A technology of natural gas and fuel oil, which is applied in the field of fuel oil or gas and burning tobacco stem waste boilers, which can solve the problems of coking and slagging, and achieve the effect of preventing coking and reducing wear and tear

Inactive Publication Date: 2017-05-24
湖南博茂节能环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to provide an integrated boiler of fuel oil or natural gas and tobacco stems and a pollutant control method to solve the problems of slagging and coking in the combustion of fuel oil or natural gas and tobacco stems in a fluidized bed boiler

Method used

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  • Fuel oil or natural gas and tobacco stem integrated boiler and pollutant control method
  • Fuel oil or natural gas and tobacco stem integrated boiler and pollutant control method
  • Fuel oil or natural gas and tobacco stem integrated boiler and pollutant control method

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Experimental program
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specific Embodiment approach 1

[0040] Specific implementation mode one: as Figure 1~Figure 5 As shown, the integrated boiler of oil or natural gas and tobacco stems, including oil or natural gas combustion chamber 1, fluidized bed combustion chamber, burner 2, fluidized bed dense phase area 3, fluidized bed dilute phase area 4, Multiple buried pipes 5, high-speed bed distribution air panels 6, two low-speed bed distribution air panels 7, high-speed bed air chambers 8, two low-speed bed air chambers 9, multiple secondary air outlets 10, flue gas outlet 11, flow Flue gas outlet 12, flue gas outlet 13, outlet window 14, slag outlet 15, fluidized bed combustion chamber first cooling chamber 16, cooling chamber membrane wall partition wall 1 17, fluidized bed combustion chamber second Cooling chamber 18, fuel oil or natural gas combustion chamber first cooling chamber 19, cooling chamber membrane wall partition wall 220, evaporation heating surface 21, fuel oil or natural gas combustion chamber second cooling c...

specific Embodiment approach 2

[0046] Specific implementation mode two: as figure 1 As shown in the specific embodiment 1, for the boiler integrated with fuel oil or natural gas and tobacco stems, the smoke connected between one of the two inlet ports of the primary blower 34 and the outlet port of the induced draft fan 37 A flue regulating baffle 38 is arranged on the passage.

[0047] The purpose of setting the flue regulating baffle 38 is to adjust the amount of flue gas from the outlet of the induced draft fan 37 entering the inlet of the primary air, and the amount of flue gas inhaled by the primary blower 34 only accounts for 0-30% of the total amount of flue gas. Since the outlet of the induced draft fan 37 is positive pressure, and the inlet of the primary blower 34 is negative pressure, there is no need to install a fan on the flue where the inlet of the primary blower 34 is connected to the outlet of the induced draft fan 37, saving equipment investment and reducing operating power consumption ....

specific Embodiment approach 3

[0048] Specific implementation mode three: as Figure 1~Figure 5 As shown, the pollutant control method is realized by using the fuel oil or natural gas-fired and tobacco stem integrated boiler described in the first or second embodiment, the method is a method of pollutant control realized by burning natural gas and tobacco stem together, including the following steps:

[0049] Step 1: Tobacco stem and Al 2 o 3 Particles (Al 2 o 3 Particles are used as both bed material and additive) together from the feeding port 43 to enter the high-speed bed in the dense phase zone 3 of the fluidized bed for combustion by gravity, and the Al 2 o 3 The diameter of the particles is less than or equal to 3mm. The heat generated by the combustion of the tobacco stems is exchanged through a plurality of buried pipes 5 arranged in the low-velocity bed in the dense-phase area 3 of the fluidized bed. At the same time, the primary air enters the high-speed bed air chamber 8 and enters the high...

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Abstract

The invention relates to an oil-burning or natural-gas-burning and tobacco-stem-burning integrated boiler and a contaminant control method and belongs to the field of oil-burning or natural-gas-burning and tobacco-stem-waste-burning boilers. The problems that slagging and coking exist when fuel oil or natural gas and tobacco stems are burnt together in a fluidized bed boiler are solved. A first smoke outlet of an oil-burning or natural-gas-burning combustor is sequentially communicated with a first oil-burning or natural-gas-burning combustor cooling chamber and a second oil-burning or natural-gas-burning combustor cooling chamber which are located behind the first smoke outlet. An outlet of a fluidized bed combustor is communicated with a first fluidized bed combustor cooling chamber and a second fluidized bed combustor cooling chamber which are located behind the outlet. The first fluidized bed combustor cooling chamber is separated from the second fluidized bed combustor cooling chamber through a first membrane panel separation wall. The lower end of the first cooling chamber membrane panel separation wall is connected with a U-shaped groove separator. The second fluidized bed combustor cooling chamber is communicated with a second smoke outlet of the second oil-burning or natural-gas-burning combustor cooling chamber. An outlet window of the second fluidized bed combustor cooling chamber is communicated with a first convection exhaust pipe and a second convection exhaust pipe. The second convection exhaust pipe is communicated with a coal economizer and an energy saver. The boiler is used for burning fuel oil or natural gas and tobacco stem waste.

Description

technical field [0001] The invention relates to a boiler integrated with fuel oil or natural gas and burning tobacco stems and a pollutant control method, belonging to the field of fuel oil or gas and burning tobacco stem waste boilers. Background technique [0002] Waste such as tobacco stems is a by-product of the tobacco industry and the main raw material for the production of counterfeit cigarettes. National policy requires that they be destroyed. In the past, rebaking companies mostly used landfill or incineration for disposal, which easily caused serious pollution to the surrounding air, water, and soil, damaged the environment, and formed major safety hazards and loopholes in the supervision of tobacco monopoly. Rebaking of tobacco leaves consumes a lot of fuel, which leads to an increase in production costs. If tobacco stems are used as fuel to provide the steam required for production to rebaking enterprises and develop a circular economy, it is a problem that most ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/00F23C10/20F23C10/18
Inventor 杨恒别如山黄昂姚斌陈伟张其龙张建忠雷放鸣李录良
Owner 湖南博茂节能环保科技有限公司
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