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Chain grate machine of dry distillation oil shale

A technology of grate machine and retort oil, which is applied in special retort, petroleum industry, furnace, etc. It can solve the problems of poor sealing performance of head and tail, increase fan energy consumption, large gas flow, etc., and achieve improved heat transfer effect , Reduce the scale of initial investment, reduce the effect of power consumption

Active Publication Date: 2014-09-24
SHANDONG PROVINCE METALLURGICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the temperature inside the machine is too high and the temperature difference from the head to the tail is too large to be used in the production of shale oil and gas; it only uses the heat exchange method between gas and solid, so it requires a large gas flow rate, The energy consumption of the fan is increased; the sealing performance of its head and tail is poor, and it cannot be used in the production of shale oil and gas; the airflow in the machine is discharged through the material layer in a straight line, even if heat recovery measures are taken, The problem of lower thermal efficiency is inevitable; etc.

Method used

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  • Chain grate machine of dry distillation oil shale
  • Chain grate machine of dry distillation oil shale
  • Chain grate machine of dry distillation oil shale

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1, such as figure 1 shown.

[0039] exist figure 1 In the shown embodiment 1 of the chain grate machine of the present invention, 1 is a wind cover, and the wind cover contains all the chain grate bodies 2 . The grate body 2 is a chain assembly including a grate plate. 3 is the head wheel. 4 is tail wheel. 5 is the upper idler. 6 is lower idler. 7 is a bellows. In terms of the structure of the bellows, if necessary, reference can also be made to the structure of a sintering machine and / or a bellows with a cooler. 8 is a pinch wheel. The 9th is the leaking material collection box, and the effect of this collection box is to collect and discharge the powder that leaks down from the chain device in the feeding section. This chain grate machine is also provided with driving device (not shown in the figure), is used for the driving of chain grate body 2. Except that the head wheel 3 and / or the tail wheel 4 can be set as driving rollers, part or even all of...

Embodiment 2

[0042] Example 2, such as figure 2 shown.

[0043] This embodiment is an improvement on the basis of Embodiment 1.

[0044] exist figure 2 In the shown embodiment 2, in addition to changing the communication relationship and direction of the pipeline 12, valves 22, 23, 24, 25 and 26 are added; at the same time, the air passage hole 21 in embodiment 1 is canceled; the remaining , then the same as in Example 1.

[0045] By adjusting the opening of the valve 22, the delivery volume of shale oil and gas can be adjusted; when the valves 23, 24, and 25 are opened, the valve 26 is closed and the operation of the fan 14 is stopped, it enters the cycle operation state of a single fan; After closing the valves 23, 24, 25, opening the valve 26 and starting the blower fan 14, it enters the running state of the double blower fans. Furnace gas is sent to the heating chamber on the far left. On the one hand, since the raw material oil shale that has just entered the furnace has a relat...

Embodiment 3

[0047] Example 3, such as image 3 shown.

[0048] This embodiment is a change made on the basis of Embodiment 2.

[0049] exist image 3 In the shown embodiment 3, in addition to changing the communication relationship and direction of the pipeline 12, the function of the valve 23 to adjust the return air volume is also retained. The purpose of adjusting the output port 18 of the furnace gas to the middle is to meet the needs of the next process for shale oil and gas to be treated at a higher temperature under certain conditions. The rest can be interpreted by readers themselves.

[0050] One of the basic purposes of listing this embodiment is also to show that the arrangement of fans and pipelines for circulating furnace gas through the oil shale layer has high flexibility and diversity.

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Abstract

The invention relates to a chain grate machine of dry distillation oil shale, belonging to the technical field of extracting shale oil gas from oil shale or extracting oil and combustible gas from soft coal. The chain grate machine provided by the invention comprises a wind cover, chain grate bodies, a head wheel, a tail wheel, a carrier roller, a press roller and the like, which is characterized in that the charging end of the chain grate machine is sealed; the discharging end of the chain grate machine is also sealed; the wind cover of the chain grate machine comprises all the chain grate bodies; the chain grate machine is provided with a fan and a pipeline capable of circulating gas in the machine; and the chain grate machine is provided with an independent recycle channel for the shale oil shale, a device capable of carrying out the isolation heating on the gas in the machine and the like. In the invention, the direct heating on the oil shale by utilizing a heat radiation pipe can be realized; the problem of higher energy consumption caused by indirect heat transfer is avoided to a large extent, and the heat transfer effect between furnace gas and the oil shale through the furnace circulation of the furnace gas can be improved. The invention can be used for the technical field of extracting the shale oil gas from the oil shale or extracting the oil and the combustible gas from the soft coal.

Description

technical field [0001] The invention relates to a chain grate for retorting oil shale, which belongs to the technical field of extracting shale oil and gas from oil shale, and is also applicable to the technical field of extracting oil and combustible gas from bituminous coal. Background technique [0002] Grate machine is one of the important process equipment commonly used in the production of oxidized pellets in the metallurgical industry. Its feed end receives the raw material balls produced by the ball forming machine, and its discharge end is connected with the high-temperature rotary roasting kiln. In the production process of oxidized pellets, the function of the grate machine is to dry and pre-roast the raw material balls, so that the pre-roasted pellets have ideal physical and chemical indicators when they enter the high-temperature rotary roasting kiln. [0003] If the grate used in the metallurgical industry is transplanted to the technical field of energy produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B21/00C10B53/06
Inventor 姚朝胜杨东进钱纲黄东生
Owner SHANDONG PROVINCE METALLURGICAL ENG CO LTD
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