Double-helix coal slime feeder

A feeder and double-screw technology, applied in the field of double-screw slime feeder, can solve the problems of sticking and blocking of the screw feeder, poor combustion effect, and failure of the multi-functional slime feeder to be broken and broken up. , to achieve the effect of expanding the scope of application and improving the combustion effect

Inactive Publication Date: 2011-04-27
光大清洁技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The multi-functional slime feeder can only be installed on the top of the boiler, and the application range is greatly limited
[0006] 2. The multi-functional slime feeder does not have the function of crushing and dispersing, and the slime entering the boiler has large agglomerates and poor combustion effect
[0007] 3. Since the single-screw feeder adopts the screw conveying method to feed, and the slime is extremely sticky, it is easy to stick to the wall of the slime feeding tube and the feeding screw, especially when the machine is shut down, it sticks to the slime feeding tube Under the baking of the boiler, the coal slime on the wall and the feeding screw will lose water and dry, and even coke, making the bond more firm, and the slime will become more and more sticky, and even block the entire screw feeder
[0011] But, so far, also do not have a kind of boiler coal slime feeding equipment that can completely overcome the above-mentioned defects and completely solve the above-mentioned problems

Method used

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  • Double-helix coal slime feeder
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  • Double-helix coal slime feeder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 It is the structural representation of the double-screw boiler coal slime feeder of embodiment 1. The slime feeder for the double-screw boiler of this embodiment mainly includes: a slime feeding barrel 3, a first slime feeding screw 1, a second slime feeding screw 2, a feeding screw driving mechanism 4 and a discharge port 6. One end of the coal slime feeding barrel 3 is a feed end, and is connected with the feeding screw drive mechanism 4 , and the other end is a discharge end, and is connected with the discharge port 6 . The coal slime feeding barrel 3 is a double-layer structure, and a cooling water jacket is formed between the inner and outer layers. The water jacket is provided with a water inlet 32 ​​and a water outlet 33, both of which communicate with the inside of the water jacket. A feed inlet 31 and a ventilation pipe 34 are arranged near the feed end, and the feed inlet 31 and the ventilation pipe 34 are all communicated with the inner chamber of ...

Embodiment 2

[0044] figure 2 It is the structural representation of the double-screw boiler coal slime feeder of embodiment 2. The double-screw boiler slime feeder of this embodiment mainly includes: a coal slime feeding barrel 3, a first slime feeding screw 1, a second slime feeding screw 2, a feeding screw driving mechanism 4, a feeding screw Linear drive mechanism 5 and discharge port 6. One end of the coal slime feeding cylinder 3 is connected with the feeding screw driving mechanism 4 , and the other end is connected with the discharge port 6 . The coal slime feeding cylinder 3 is a double-layer structure, and between the inner and outer layers is a cooling water jacket. The coal slime feeding cylinder 3 is provided with a feed inlet 31, a water inlet 32 ​​and a water outlet 33, and the feed inlet 31 is connected to the feed cylinder. The inner cavity of 3 communicates, and the water inlet 32 ​​and the water outlet 33 communicate with the inner cavity of the cooling water jacket be...

Embodiment 3

[0050] image 3 It is a structural schematic diagram of the double-screw boiler coal slime feeder of embodiment 3. The slime feeder for a double-screw boiler in this embodiment mainly includes: a slime feeding barrel 3 , a first slime feeding screw 1 , a second slime feeding screw 2 , and a feeding screw driving mechanism 4 . One end of the coal slime feeding cylinder 3 is connected with the feeding screw driving mechanism 4, and the other end is a discharge port 6. The coal slime feeding cylinder 3 is a double-layer structure, and between the inner and outer layers is a cooling water jacket. The coal slime feeding cylinder 3 is provided with a feed inlet 31, a water inlet 32, a water outlet 33 and a ventilation pipe 34. The feed inlet 31 and the ventilation pipe 34 communicate with the inner cavity of the barrel 3 , and the water inlet 32 ​​and the water outlet 33 communicate with the inner and outer walls of the barrel 3 to form a cooling water jacket.

[0051] The feeding...

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Abstract

The invention provides a double-helix boiler coal slime feeder, which is characterized by mainly comprising a coal slime feeding drum (3), a coal slime feeding helix and a feeding helix driving mechanism (4), wherein one end of the coal slime feeding drum (3) is connected with the feeding helix driving mechanism (4) and the other end of the coal slime feeding drum (3) is arranged on a boiler and is communicated with the interior of the boiler; a coal slime feeding hole (3) is formed on the coal slime feeding drum (3); the coal slime feeding helix comprises a first coal slime feeding helix (1) and a second coal slime feeding helix (2); and the feeding helix driving mechanism (4) comprises a power component and a transmission component. The double-helix boiler coal slime feeder has the advantages that: the feeder can be arranged at a plurality of positions of the boiler; the coal slime entering the boiler is fine granules so as to improve the combustion efficiency; and the problem that the coal slime is adhered to the feeding drum wall and the helixes is solved.

Description

technical field [0001] The invention relates to the field of fuel delivery, in particular to a double-screw coal slime feeder for feeding coal slime into a furnace using coal slime as fuel. Background technique [0002] Coal slime is a by-product of coal washing and has a certain calorific value. For a long time, due to the lack of suitable technology and equipment, most coal slimes can only be stacked or filled into abandoned mines, which not only occupies land resources, pollutes the environment, but also wastes a lot of energy. In recent years, with the breakthroughs in coal slime pipeline transportation technology and circulating fluidized bed coal slime combustion technology, it has been found that combustion power generation is the best way to utilize coal slime as a resource. However, due to the extremely high viscosity of coal slime, it is easy to coke, which will often block the coal slime feeding equipment, cause the supply of coal slime fuel to be interrupted, an...

Claims

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Application Information

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IPC IPC(8): B65G33/18B65G33/24B65G33/34F23C10/22F23K3/00
Inventor 吴淼孙浩李建国侯双旺巩长勇
Owner 光大清洁技术股份有限公司
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