Gasification fine slag spraying combustion equipment
By designing a gasified fine slag injection and combustion device, and utilizing a combination of internal and external combustion chambers and an air pump, multiple combustions of the gasified fine slag are achieved, solving the problems of short combustion time and small contact area, improving the burnout rate and reducing costs.
Patent Information
- Application Number
- CN202423154791.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In the existing gasification fine slag combustion process, the combustion time is short, the contact area is small, the burnout rate is low, and the pipe is prone to bursting and clogging during transportation, which leads to increased costs.
Design a gasified fine slag spraying and combustion device, including a gasifier, an inner combustion chamber and an outer combustion chamber. A sprayer is connected to the inner combustion chamber through a pipeline. The gasified fine slag is dispersed and sprayed out by an air pump for multiple combustions. Combined with the temperature control of the outer combustion chamber and the inner combustion chamber, complete combustion is achieved.
It improves the burnout rate of gasified fine slag, reduces the amount of solid waste stockpiling, lowers production and operating costs, and ensures more complete and faster combustion, making it suitable for widespread use.
Smart Images
Figure CN223579943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gasification fine slag treatment technology, specifically to a gasification fine slag ejection and combustion device. Background Technology
[0002] Currently, the co-firing and utilization of gasified fine slag mainly involves conveying agglomerated, solid, and viscous gasified fine slag to the gasifier using belt pumps, plunger pumps, or diaphragm pumps for combustion. The combustion process results in a short residence time and a small effective contact area, hindering rapid combustion and leading to low burnout rates. Furthermore, pump delivery frequently encounters problems such as pipe bursts and blockages, impacting progress and increasing costs. Therefore, there is a need to design a treatment device for gasified fine slag that achieves more complete combustion and better processing results. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a gasification fine slag spraying and combustion device that addresses the shortcomings of the prior art. The device has a scientific and reasonable structural design, a large contact area during gasification fine slag combustion, fast combustion speed, good combustion effect, high burnout rate, and low manufacturing cost, and can be widely used.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a gasification fine slag spraying and combustion device, characterized in that it includes a gasifier, an inner combustion chamber and an outer combustion chamber, a pipe is installed through the gasifier, the inlet end of the pipe is connected to a dust cover, the dust cover is directly opposite the outlet of a sprayer, the outlet end of the pipe is connected to the inner combustion chamber, the outer combustion chamber is nested outside the inner combustion chamber, and the sprayer is connected to an air pump.
[0005] Preferably, the gasifier and the bottom of the external combustion chamber are provided with support legs.
[0006] Preferably, the outlet end of the pipe is inserted into the inner combustion chamber, and the bottom of the inner combustion chamber is provided with an arc-shaped groove that matches the outer wall of the pipe.
[0007] Preferably, the spray bottle is provided with an inlet for adding gasified fine slag, and the particle size of the gasified fine slag in the spray bottle is not greater than 80 mesh.
[0008] Preferably, the heating temperature of the outer combustion chamber is 500°C, and the heating temperature of the gasifier is 850°C.
[0009] This utility model has the following advantages compared with the prior art:
[0010] 1. This utility model has a simple and reasonable structure, strong practicality, low manufacturing and operating costs, high combustion rate of gasification fine slag, good treatment of gasification fine slag, and can effectively reduce the amount of solid waste stockpiling. It can be widely used.
[0011] 2. The gasified fine slag of this invention has a small particle size and a large effective thermal contact area. Dispersed and sprayed by an air pump and sprayer, it has a low particle concentration per unit volume, making it easy to burn. Compared to belt and pump conveying, this invention has a longer combustion residence time, resulting in more complete combustion and a higher burnout rate of the gasified fine slag.
[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a side view cross-sectional structural diagram of the combustion chamber in this utility model.
[0015] Explanation of reference numerals in the attached figures:
[0016] 1—Sprayer; 2—Dust cover; 3—Gasifier;
[0017] 4—Pipeline; 5—Inner combustion chamber; 6—Outer combustion chamber;
[0018] 7—Air pump; 8—Support leg; 9—Arc-shaped groove. Detailed Implementation
[0019] like Figure 1 and Figure 2 As shown, this utility model includes a gasifier 3, an inner combustion chamber 5, and an outer combustion chamber 6. A pipe 4 is installed through the gasifier 3. The inlet end of the pipe 4 is connected to a dust cover 2. The dust cover 2 is positioned opposite the outlet of a spray bottle 1. The outlet end of the pipe 4 is connected to the inner combustion chamber 5. The outer combustion chamber 6 is nested outside the inner combustion chamber 5. The spray bottle 1 is connected to an air pump 7.
[0020] In this embodiment, support legs 8 are provided at the bottom of the gasifier 3 and the outer combustion chamber 6.
[0021] In this embodiment, the outlet end of the pipe 4 is inserted into the inner combustion chamber 5, and the bottom of the inner combustion chamber 5 is provided with an arc-shaped groove 9 that is adapted to the outer wall of the pipe 4.
[0022] In this embodiment, the spray bottle 1 is provided with an inlet for adding gasified fine slag, and the particle size of the gasified fine slag in the spray bottle 1 is no greater than 80 mesh.
[0023] In this embodiment, the heating temperature of the outer combustion chamber 6 is 500°C, and the heating temperature of the gasifier 3 is 850°C.
[0024] In use, the outer combustion chamber 6 is ignited first, which heats the inner combustion chamber 5. When the outer combustion chamber 6 is heated to 500°C, the gasifier 3 is heated. The gasifier 3 is heated to 850°C, and the air pump 7 is turned on to spray the gasified fine slag in the spray bottle 1 into the pipe 4 through the dust cover 2. The gasified fine slag in the pipe 4 located in the gasifier 3 undergoes preliminary combustion, and then is introduced into the inner combustion chamber 5 for secondary combustion.
[0025] More specifically, multiple tests were conducted. In the first test, 0.9387g of gasified fine slag was taken from spray bottle 1 and the calorific value was measured to be 3740cal / g using a calorimeter. In the internal combustion chamber 5, 1.5248g of the burned sample was taken and the calorific value was measured to be 1802cal / g using a calorimeter. The calorific value of the residual char was calculated to be 1-1802 / 3740≈52%.
[0026] In the second experiment, 0.9958g of gasified fine slag was taken from the spray bottle and the calorific value was measured to be 3722 cal / g using a calorimeter. 0.9871g of the burned sample was taken from the internal combustion chamber 5 and the calorific value was measured to be 1637 cal / g using a calorimeter. The calculated char combustion rate was 1-1637 / 3722≈56%.
[0027] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A gasification fine slag spouting combustion apparatus characterized by, It comprises a gasification furnace (3), an inner combustion chamber (5) and an outer combustion chamber (6), the gasification furnace (3) is provided with a pipeline (4) through it, the inlet end of the pipeline (4) is connected with a dustproof cover (2), the dustproof cover (2) is opposite to the outlet of a spray pot (1), the outlet end of the pipeline (4) is communicated with the inner combustion chamber (5), the outer combustion chamber (6) is nested outside the inner combustion chamber (5), and the spray pot (1) is connected with a gas pump (7).
2. The gasification fine slag spouted combustion apparatus according to claim 1, wherein Supporting legs (8) are arranged at the bottom of the gasification furnace (3) and the outer combustion chamber (6).
3. The gasification fine slag spouted combustion apparatus according to claim 1, wherein The outlet end of the pipeline (4) is inserted into the inner combustion chamber (5), and the bottom of the inner combustion chamber (5) is provided with an arc-shaped groove (9) matched with the outer sidewall of the pipeline (4).
4. The gasification fine slag spouted combustion apparatus according to claim 1, wherein An adding opening for adding gasification fine slag is arranged on the spray pot (1), and the particle size of the gasification fine slag in the spray pot (1) is not greater than 80 mesh.
5. The gasification fine slag spouted combustion apparatus according to claim 1, wherein The heating temperature of the outer combustion chamber (6) is 500 DEG C, and the heating temperature of the gasification furnace (3) is 850 DEG C.