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Semi-coke waste heat recovery screw conveyor

A technology of screw conveyor and waste heat recovery, which is applied to the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc. It can solve the problems that the coke quenching system of the semi-coke furnace cannot be applied, the U-shaped box cannot be filled with materials, and the Problems such as gas material seal, achieve compact structure, overcome uncompact structure, and prevent gas leakage

Active Publication Date: 2017-02-15
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is also a water-cooled screw conveyor with a U-shaped structure on the market that can arrange multiple feeding ports, but when this U-shaped water-cooled screw conveyor is working, its U-shaped box cannot be filled with materials, and the semi-coke cannot The gas generated in the furnace is sealed, which may easily cause the risk of gas leakage, so this U-shaped water-cooled screw conveyor cannot be applied to the existing coke quenching system of the semi-coke furnace

Method used

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  • Semi-coke waste heat recovery screw conveyor
  • Semi-coke waste heat recovery screw conveyor
  • Semi-coke waste heat recovery screw conveyor

Examples

Experimental program
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Effect test

Embodiment 1

[0043] refer to Figure 1~2 , the inner cylinder in this embodiment has two inner cylinder sections, which are the first inner cylinder section 9 and the second inner cylinder section 13 along the conveying direction, and the corresponding helical blades include the first helical blade 8 and the second helical blade. Two helical blades 14, the first helical blade 8 is located in the first inner cylinder section 9, the second helical blade 14 is located in the second inner cylinder section 13, and in this embodiment the inner diameter of the second inner cylinder section 13 is greater than The inner diameter of the first inner cylinder section 9, and the pitch of the second helical blade 14 is greater than the pitch of the first helical blade 8, the combination of the two makes the second helical blade 14 of a pitch and the outer surface of the helical base pipe 7 The volume enclosed by the circular surface and the inner circular surface of the second inner cylinder section 13 ...

Embodiment 2

[0052] refer to Figure 5 , The difference between this embodiment and Embodiment 1 is that the water-cooled housing and the water-cooled rotating body are coaxially arranged, and the axis is inclined upward along the conveying direction, and the inclined setting can firstly increase the height of the discharge port 15 to achieve the purpose of lifting materials , so as to increase the installation space, it is convenient to install a scraper or a belt conveyor under the semi-coke waste heat recovery screw conveyor, which is convenient for the transformation of the existing semi-coke furnace quenching system, and the inclined setting can further ensure that the semi-coke is filled In the inner cylinder, the purpose of material sealing is achieved to avoid gas leakage. Preferably, the inclination angle is 5°, and the inclination angle can be selected from 3° to 15°.

[0053] Both the upper ends of the first feeding port 35 and the second feeding port 33 are fixed with flange p...

Embodiment 3

[0055] refer to Figure 6 In this embodiment, the inner diameters of the first inner cylinder section 9 and the second inner cylinder section 13 are the same, that is, the inner cylinder is a straight cylinder, and the pitch of the second helical blade 14 is the pitch of the first helical blade 8 In this way, the volume enclosed by the second helical blade 14 of one pitch, the outer circular surface of the helical base pipe 7, and the inner circular surface of the second inner cylinder section 13 can be the first pitch of one pitch. A helical blade 8, the outer circular surface of the helical base pipe 7, and the inner circular surface of the first inner cylinder section 9 double the volume, and the processing of the inner cylinder and the helical blade is simple. Of course, the cross-sectional area of ​​the annular cavity between the second inner cylinder section 13 and the spiral base pipe 7 can also be made to be twice the cross-sectional area of ​​the annular cavity betwee...

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Abstract

The utility model relates to a semi-coke waste heat recovery screw conveyor, which belongs to the field of semi-coke processing equipment. The inner cylinder includes two or more inner cylinder sections, and each inner cylinder section is connected with a feed port on the upper side of the initial end of its delivery, and the lower side of the end of the last inner cylinder section is connected with a discharge port (15), and the volume enclosed by a pitch helical blade in the N+1th inner cylinder section, the outer circular surface of the spiral base pipe (7) and the inner circular surface of the N+1th inner cylinder section It is the times of the volume enclosed by a pitch helical blade in the Nth inner cylinder section, the outer circular surface of the spiral base pipe (7) and the inner circular surface of the Nth inner cylinder section, N is an integer ≥ 1 , and N≤5. It can ensure that after the semicoke in the front inner cylinder section enters the rear inner cylinder section, the semicoke at the feed port of the rear inner cylinder section can also enter the rear inner cylinder section, and just make each section of the inner cylinder The body section is filled with materials to achieve the purpose of full material conveying, thus effectively preventing the occurrence of dangerous accidents of gas leakage.

Description

technical field [0001] The utility model relates to a semi-coke waste heat recovery screw conveyor, which belongs to the field of semi-coke processing equipment. Background technique [0002] Semi-coke is a deep-processed product of coal, which is mainly produced by dry distillation in an internal heating type fasting carbonization furnace. Since 2007, semi-coke has developed rapidly due to its excellent characteristics. Especially in the border areas of Shaanxi, Mongolia, Shanxi and Ningxia provinces, with its advantages of rich high-quality Jurassic coal resources, there are a large number of semi-coke processing enterprises with a production capacity of 600,000 tons and above. At present, these semi-coke processing enterprises generally adopt the method of quenching semi-coke with water: the coke mouth of the carbonization furnace is as deep as the quenching tank filled with quenching water, and the coke pushing plate pushes the hot semi-coke down to the quenching tank ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G33/14B65G33/24B65G33/26F28D7/10
CPCB65G33/14B65G33/24B65G33/265Y02P70/10
Inventor 刘永启郑斌王延遐刘瑞祥孙鹏
Owner SHANDONG UNIV OF TECH
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