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Conveyor having cooling down function and cooling down slag method

A conveyor and conveyor conveying technology, applied in the field of conveyor and its cooling ash, can solve the problems of consuming process time and financial resources, increase the overall process complexity, etc., to improve process safety, improve work efficiency, The effect of reducing the heat load

Inactive Publication Date: 2008-03-05
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process flow disclosed by these two patents, the cooling process is set as an independent section, which invisibly increases the complexity of the overall process and consumes unnecessary process time and financial resources.

Method used

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  • Conveyor having cooling down function and cooling down slag method
  • Conveyor having cooling down function and cooling down slag method
  • Conveyor having cooling down function and cooling down slag method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] As shown in Figure 1, Figure 1 is a front view of a conveyor set vertically to the ground with an induced draft fan and an air outlet set on the top of the slag storage bin. It can be seen from the figure that the conveyor installed perpendicular to the ground has a sealed casing 1, and a feed inlet 2 is set at the bottom of the sealed casing 1 and at a certain height from the ground, such as 1.5m; at a position close to the top of the sealed casing A material outlet 3 is provided, and the material inlet 2 and the material outlet 3 are located on different sides of the sealed casing 1 . Of course, in other embodiments, the feed port 2 and the discharge port 3 can also be arranged at other different positions, for example, on the same side of the shell, which will not be repeated here; an inspection door 4 is respectively set on both sides of the sealed shell 1 , In other embodiments, a larger number of inspection doors 4 can also be set.

[0032] In addition, a conveyi...

Embodiment 2

[0040] As shown in FIG. 2 , it is a front view of a conveyor in another embodiment of the present invention. The conveyor is still vertical to the ground, and the induced draft fan and the air outlet are arranged at the discharge port. Compared with FIG. 1 , the difference of this embodiment is that the positions of the induced draft fan 8 and the air outlet 9 are different. In FIG. 2 , the induced draft fan 8 and the air outlet 9 are arranged on the top of the discharge port 3 . Compared to the design shown in Figure 1, which only facilitates air circulation within the conveyor itself, the design in Figure 1 facilitates both the conveyor and the slag connected by the conveying piping The circulation of the wind inside the warehouse as a whole. At the same time, it should be noted that, in order to avoid the ash phenomenon at the discharge port that may be caused by the design shown in Figure 2, the pipeline connecting the discharge port 3 and the induced draft fan 8 is speci...

Embodiment 3

[0043] The conveyor in this embodiment is arranged inclined to the ground, and there is an angle α between the sealed casing 1 and the ground. All the other are with embodiment 1.

[0044] Please see Fig. 3 , which is a side view of a conveyor whose inclination angle α between the sealed casing 1 and the ground is 15-60°. The angle α is preferably 40°. It can be seen from the figure that except for the setting angle, its structure is basically the same as that of the conveyor shown in Figure 1; there are 2 inlets, 3 outlets, 4 maintenance doors, 5 air inlets, and 6 conveying pipes. , storage bin 7, induced draft fan 8 and air outlet 9. In addition, in order to maintain the stability of the inclined airtight enclosure, a stabilizing bracket is provided at the lower part of the airtight enclosure.

[0045] The induced draft fan 8 and the air outlet 9 of this inclined conveyor can also be arranged on the top of the discharge outlet 3 through a zigzag sealed duct as in the embo...

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Abstract

This invention relates to a conveyor elevating slag to the slag storage, which can be positioned vertically to the horizontal plane or obliquely. The conveyor includes a seal shell on which the material inlet and the outlet are positioned. The conveying device is installed inside the seal shell. Several air inlets are set on the lateral of the seal shell for the continuous cooling of slag during elevation. In addition, air outlet and induced draft fan are positioned at the top of the slag storage or the material outlet to enhance air circulation inside the conveyor.

Description

technical field [0001] The invention belongs to the field of slag discharge equipment for coal-fired boilers, and in particular relates to a conveyor with a cooling function suitable for conveying ash with a certain temperature and a method for cooling the ash. Background technique [0002] With the continuous development of science and technology, the level of comprehensive utilization of ash and slag and the requirements for environmental protection are increasing. Most thermal power plants have abandoned the original treatment technology of hydraulic slag discharge and water cooling for the treatment of coal-fired boiler bottom ash and slag. The dry slag discharge system of the coal-fired boiler of the power station is adopted. [0003] However, in the prior art of the current dry slag discharge system, when the boiler is in normal operation, the hot ash is discharged to the slag conveyor through the furnace bottom slag discharge device, and the ash is discharged to the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J1/02
Inventor 夏春华张晶王玉玮赵会刚
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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