Unlock instant, AI-driven research and patent intelligence for your innovation.

Heating method at oil shale temperaturerise section in rotary grate type retort

A technology of heating stage and heating method, which is applied in the direction of special carbonization, direct heating carbonization, coke oven, etc., can solve the problems affecting the effect of carbonization, difficult to use and recover physical sensible heat and condensation of shale oil semi-coke, and achieve easy maintenance Effect

Active Publication Date: 2011-10-19
SHANDONG PROVINCE METALLURGICAL ENG CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. During the circulation process of shale oil vapor in the retort (kettle), when it passes through the heating section of shale oil inside the retort furnace, since the temperature of the oil shale at this time is relatively low, the In shale oil vapor, the concentration of oil vapor is high, which will inevitably condense the obtained oil vapor and affect the expected dry distillation effect
[0006] 2. In the process of recovering the physical sensible heat of shale semi-coke, due to the high temperature of the furnace gas, it is difficult to use this furnace gas to fully recover the physical sensible heat of shale oil semi-coke

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heating method at oil shale temperaturerise section in rotary grate type retort
  • Heating method at oil shale temperaturerise section in rotary grate type retort

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1, such as figure 1 shown.

[0025] exist figure 1 In the shown embodiment 1, the moving grate type dry distillation furnace is divided into 3 sections: the first section is the feeding section, the second section is the dry distillation section, and the third section is the discharge section of the oil shale semi-coke. Among them, Section II is divided into three sections: Section II-1 is a preheating section; Section II-2 is a formal dry distillation section; Section II-3 is a waste heat recovery section of oil shale semi-coke. Segments are separated by partition boards 1 .

[0026] Regardless of where the dry combustible gas comes from, when it enters through the inlet 2 and is heated by the heat exchanger 3, it is sent into the wind box 5 by the blower 4. The heating temperature can be controlled at about 270°C. Since the gas is a dry combustible gas, when it passes through the oil shale layer, it can have high heating efficiency and will not cause con...

Embodiment 2

[0029] Example 2, such as figure 2 shown.

[0030] This embodiment is an improvement on the basis of Embodiment 1.

[0031] exist figure 2 In the shown embodiment 2, the inlet 2 of the dry combustible gas is moved to the upper part, and a regulating valve 25 is set, so that the dry combustible gas input from the outside of the furnace first passes through the waste heat recovery section of oil shale semi-coke, Then enter the heating section of oil shale. In this way, not only the heat exchanger 3 in Example 1 is omitted, but also the temperature of the oil shale semi-coke can be lowered, its physical sensible heat can be used more effectively, and the oil shale semi-coke can be effectively suppressed. Spontaneous ignition risk of semi-char.

[0032] exist figure 2 In the shown embodiment 2, valves 26, 27 and 28 are also added to strengthen the gas scheduling capability between the circulation circuits of each fan, and help to realize the target value of the gas flow of ea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Belonging to the technical fields of extracting shale gas from oil shales and extracting oil and flammable gas from soft coals, the invention relates to a heating method at the oil shale temperaturerise section in a rotary grate type retort. The method is characterized in that: dry flammable gas input from outside the retort is used in a heat carrier for heating at the temperaturerise section of oil shales; and additionally the dry flammable gas enters the temperaturerise section of oil shales after passing the waste heat recovery section of oil shale semicocks, etc. The invention aims to solve the technical problems of: preventing the steam of shale oil from condensing at the temperiserise section without debasing the quality of product gas from oil shale retorting, fully and reasonably utilizing the physic sensible heat of the oil shale semicocks and avoiding the self-ignition of the oil shale semicocks.

Description

technical field [0001] The invention relates to a heating method for oil shale in the oil shale heating stage in a moving grate type retort furnace for oil shale, and belongs to the technical field of extracting shale oil and combustible gas from oil shale. At the same time, the method is also applicable to the technical field of extracting oil and combustible gas from bituminous coal. Background technique [0002] The development and utilization of oil shale is an important topic at present. In the patent application document of 87102476 disclosed by the State Patent Office, a kind of rotating grate retort (furnace) is disclosed, which utilizes heat-carrying gas to realize the heating of raw oil shale and obtain shale oil vapor and Combustible. [0003] In order to obtain high-quality shale oil vapor, someone has proposed an improved scheme to avoid air entering the retort and only use shale oil vapor to circulate in the retort (kettle). [0004] The weak point of above-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10B49/02C10B53/06C10B53/04
CPCY02P20/129
Inventor 姚朝胜魏新民衣忠德黄东生钱纲刘志强年四伟
Owner SHANDONG PROVINCE METALLURGICAL ENG CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com