CN204874426U - Clean system is retrieved to low temperature pyrolysis low order coal raw coke oven gas - Google Patents
Clean system is retrieved to low temperature pyrolysis low order coal raw coke oven gas Download PDFInfo
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- CN204874426U CN204874426U CN201520510059.5U CN201520510059U CN204874426U CN 204874426 U CN204874426 U CN 204874426U CN 201520510059 U CN201520510059 U CN 201520510059U CN 204874426 U CN204874426 U CN 204874426U
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Abstract
The utility model relates to a coal chemical engineering technology field, in particular to clean system is retrieved to low temperature pyrolysis low order coal raw coke oven gas. This system includes cyclone, cooling tower and electrical tar precipitator, the feed inlet on cyclone upper portion is linked together through pipeline and raw coke oven gas, the material export at cyclone top is linked together through the feed inlet of pipeline with cooling tower upper portion, it links to each other with cooling water pump to pass through the pipeline at the cooling tower top, the discharge gate of cooling tower bottom one side is linked together through pipeline and electrical tar precipitator feed inlet, electrical tar precipitator top discharge mouth is linked together through pipeline and coal gas fan air intake, coal gas fan air outlet is linked together through pipeline and one -level cyclone collector, the one -level cyclone collector is linked together with the second grade cyclone collector, the second grade cyclone collector is linked together with the gas -liquid separation jar, the pure coal gas of separation passes through the gas outlet discharge of gas -liquid separation jar. This system retrieves the raw coke oven gas and purify under isolated air condition, and the pure coal gas purity that obtains is high, and the calorific value is high.
Description
(1) technical field
The utility model relates to technical field of coal chemical industry, particularly a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system.
(2) background technology
Low-rank coal refers to the coal that degree of coalification is lower, mainly be divided into brown coal and sub-bituminous coal, there is the features such as high volatile, high reactivity, high-moisture, low-rank coal is made to be not easy to long distance transportation, and low-rank coal due to calorific value low, mass energy, fund and equipment are not only wasted in direct burning, the obnoxious flavoures such as the dust contained in products of combustion, oxysulfide, oxynitride, hydrocarbon and carbon monoxide, be discharged in air and can cause serious topsoil, this makes the direct utilization ratio of low-rank coal low.Therefore, need to carry out pyrolysis processing to low-rank coal.Current low-rank coal low temperature pyrogenation produces semicoke and the high temperature raw gas containing tar, the technical process unfixing at present to the reclaiming clean process of consequent raw gas, the coal gas obtained in the process of reclaiming clean is mostly mixed with air and rare gas element, cause coal gas purity low, calorific value is low, do not reach the standard as industrial chemicals, reduce the utilization ratio of coal gas.
(3) summary of the invention
The utility model is in order to make up the deficiencies in the prior art, provide a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system, the raw gas that low temperature pyrogenation low-rank coal produces can reclaim and purification by this system under the condition of isolated air, obtain purity high, the pure coal gas that calorific value is high, solves problems of the prior art.
The utility model is achieved by the following technical solution:
A kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system, it is characterized in that: comprise cyclonic separator, cooling tower and electrical tar precipitator, the opening for feed on cyclonic separator top is connected with raw gas by pipeline, the material outlet at cyclonic separator top is connected with the cooling tower opening for feed on cooling tower top by pipeline, be connected with cooling-water pump by pipeline at cooling tower top, bottom cooling tower, the cooling tower discharge port of side is connected with the electrical tar precipitator opening for feed bottom electrical tar precipitator by pipeline, the top discharge mouth at electrical tar precipitator top is connected with the blast inlet of gas fan by pipeline, the air outlet of gas fan is connected by the material inlet of pipeline with one cyclonic collector, the material outlet at one cyclonic collector top is connected by the material inlet of pipeline with secondary rotoclone collector, the material outlet at secondary rotoclone collector top is connected by the middle part material inlet of pipeline with knockout drum one middle side part, the pure coal gas be separated is discharged by the pneumatic outlet of knockout drum opposite side upper end.
Described cyclonic separator comprises primary cyclone and secondary cyclone, and the material outlet at described primary cyclone top is connected by the opening for feed of pipeline with secondary cyclone top.
The pipeline that cyclonic separator is connected with cooling tower is provided with one by pipeline and pneumaticly cuts valve soon, described pneumatic valve of cutting soon is connected with outside gas-holder by pipeline, and described gas-holder is connected with air compressor machine by pipeline.
On the pipeline be connected with the blast inlet of gas fan, on the pipeline that gas fan is connected with one cyclonic collector, and the pipeline that is connected with secondary rotoclone collector of one cyclonic collector is equipped with a high-temperature solenoid valve.
The beneficial effects of the utility model are: adopt such scheme, whole system is run under isolated air conditions, and the coal gas purity obtained is high, and calorific value is high, can reach the standard as industrial chemicals; Equipment used is few, and floor space is little, rationally distributed, can economize on the use of funds on the one hand, easy to operate on the other hand, failure rate is low, long service life, is convenient to safeguard; Equipment connection place is provided with pneumaticly cuts valve and high-temperature solenoid valve soon, be convenient to automatic operation, when system is normally run, pneumatic cut the air pressure effect of valve in the gas-holder that air compressor machine drives soon under be in closing condition, when power-off or internal system pressure increase to over suddenly the pressure of setting, pneumatic valve of cutting soon can automatically be opened, high-temperature solenoid valve can be closed, ensure that coal gas can be discharged from pneumatic valve of cutting soon in time, improve the security of whole system, ensure the safety of operator.
(4) accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, material inlet in the middle part of 1 cyclonic separator, 2 cooling towers, 3 electrical tar precipitators, 4 cooling-water pumps, 5 gas fans, 6 one cyclonic collectors, 7 secondary rotoclone collectors, 8 knockout drums, 9,10 pneumatic outlets, 11 pneumaticly cut valve, 12 gas-holder, 13 air compressor machines, 14 high-temperature solenoid valves, 1.1 primary cyclones, 1.2 secondary cyclones, 15 top discharge mouths soon.
(5) embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but the utility model is not limited thereto.
As shown in Figure 1, a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system, comprise cyclonic separator 1, cooling tower 2 and electrical tar precipitator 3, the opening for feed on cyclonic separator 1.1 top is connected with raw gas by pipeline, the material outlet at cyclonic separator 1.2 top is connected by the cooling tower opening for feed of pipeline with cooling tower 2 top, be connected with cooling-water pump 4 by pipeline at cooling tower 2 top, bottom cooling tower 2, the cooling tower discharge port of side is connected with the electrical tar precipitator opening for feed bottom electrical tar precipitator 3 by pipeline, the top discharge mouth 16 at electrical tar precipitator 3 top is connected by the blast inlet of pipeline with gas fan 5, the air outlet of gas fan 5 is connected by the opening for feed of pipeline with one cyclonic collector 6, the material outlet at one cyclonic collector 6 top is connected by the material inlet of pipeline with secondary rotoclone collector 7, the material outlet at secondary rotoclone collector 7 top is connected by the middle part material inlet 9 of pipeline with knockout drum 8 one middle side part, the pure coal gas be separated is discharged by the pneumatic outlet 10 of knockout drum 8 opposite side upper end.
Described cyclonic separator 1 comprises primary cyclone 1.1 and secondary cyclone 1.2, and the material outlet at described primary cyclone 1.1 top is connected by the opening for feed of pipeline with secondary cyclone 1.2 top.
The pipeline that cyclonic separator 1 is connected with cooling tower 2 is provided with one by pipeline and pneumaticly cuts valve 11 soon, described pneumatic valve 11 of cutting soon is connected with outside gas-holder 12 by pipeline, and described gas-holder 12 is connected with air compressor machine 13 by pipeline.
On the pipeline be connected with gas fan blast inlet, on the pipeline that gas fan 5 is connected with one cyclonic collector 6, and the pipeline that is connected with secondary rotoclone collector 7 of one cyclonic collector 6 is equipped with a high-temperature solenoid valve 14.
The scavenging process of this low temperature pyrogenation low-rank coal raw gas recovering and purifying system is specific as follows: the raw gas that pyrolysis produces is under the effect of gas fan 5, first enter the opening for feed of primary cyclone 1.1, continue separation dedusting removing to be entered secondary cyclone 1.2 in by pipeline from the material outlet at primary cyclone 1.1 top after dust through cyclonic separation in primary cyclone 1.1, by through one-level, coal gas after secondary cyclone is separated enters cooling tower 2 top by pipeline, now open cooling-water pump 4, spraying cooling water in cooling tower 2, tar is made to cool and separate out gradually from coal gas, the coal gas of separating out certain tar enters electrical tar precipitator 3 bottom feed mouth by the pipeline of side bottom cooling tower 2, further tar is separated with coal gas under the effect of electrical tar precipitator 3, the coal gas of separating out most of tar subsequently by the top discharge mouth 15 of electrical tar precipitator 3 by pipeline successively through one cyclonic collector 6 and secondary rotoclone collector 7, coal gas is purified again, dust granules and tar are thoroughly separated from coal gas, coal gas enters in knockout drum 8 to be separated with water and finally obtains pure coal gas and discharged by the pneumatic outlet 10 of knockout drum 8 upper end.Remove moisture through conventional tar water removal techniques process after being collected by storage tank by cooling tower 2, electrical tar precipitator 3, one cyclonic collector 6, secondary rotoclone collector 7 and knockout drum 8 points of isolated tar and water, thus pure tar can be obtained.
When unexpected power-off or system internal pressure too high time, pneumatic valve 11 of cutting soon is opened automatically, and high-temperature solenoid valve 14 is closed automatically, now coal gas can in time from pneumatic cut soon valve 11 discharge, ensure that the safety of whole system, avoid the generation of accident.
Claims (4)
1. a low temperature pyrogenation low-rank coal raw gas recovering and purifying system, it is characterized in that: comprise cyclonic separator, cooling tower and electrical tar precipitator, the opening for feed on cyclonic separator top is connected with raw gas by pipeline, the material outlet at cyclonic separator top is connected with the cooling tower opening for feed on cooling tower top by pipeline, be connected with cooling-water pump by pipeline at cooling tower top, bottom cooling tower, the cooling tower discharge port of side is connected with the electrical tar precipitator opening for feed bottom electrical tar precipitator by pipeline, the top discharge mouth at electrical tar precipitator top is connected with the blast inlet of gas fan by pipeline, the air outlet of gas fan is connected by the material inlet of pipeline with one cyclonic collector, the material outlet at one cyclonic collector top is connected by the material inlet of pipeline with secondary rotoclone collector, the material outlet at secondary rotoclone collector top is connected by the middle part material inlet of pipeline with knockout drum one middle side part, the pure coal gas be separated is discharged by the pneumatic outlet of knockout drum opposite side upper end.
2. a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system according to claim 1, it is characterized in that: described cyclonic separator comprises primary cyclone and secondary cyclone, the material outlet at described primary cyclone top is connected by the opening for feed of pipeline with secondary cyclone top.
3. a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system according to claim 1, it is characterized in that: on the pipeline that cyclonic separator is connected with cooling tower, be provided with one by pipeline pneumaticly cut valve soon, described pneumatic valve of cutting soon is connected with outside gas-holder by pipeline, and described gas-holder is connected with air compressor machine by pipeline.
4. a kind of low temperature pyrogenation low-rank coal raw gas recovering and purifying system according to claim 1, it is characterized in that: on the pipeline be connected with the blast inlet of gas fan, on the pipeline that gas fan is connected with one cyclonic collector, and the pipeline that is connected with secondary rotoclone collector of one cyclonic collector is equipped with a high-temperature solenoid valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510059.5U CN204874426U (en) | 2015-07-14 | 2015-07-14 | Clean system is retrieved to low temperature pyrolysis low order coal raw coke oven gas |
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| CN201520510059.5U CN204874426U (en) | 2015-07-14 | 2015-07-14 | Clean system is retrieved to low temperature pyrolysis low order coal raw coke oven gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047423A (en) * | 2016-07-01 | 2016-10-26 | 朱绍辉 | Low-rank coal low-temperature pyrolysis tar gas recycling equipment |
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2015
- 2015-07-14 CN CN201520510059.5U patent/CN204874426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106047423A (en) * | 2016-07-01 | 2016-10-26 | 朱绍辉 | Low-rank coal low-temperature pyrolysis tar gas recycling equipment |
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Effective date of registration: 20221123 Address after: 030000 Room 604, Building A, No. 1, Saiding Road, Jinyang Street, Xuefu Industrial Park, Shanxi Transformation Comprehensive Reform Demonstration Zone, Taiyuan, Shanxi Province Patentee after: Shanxi Dingli Xinde Energy Technology Co.,Ltd. Address before: 271000 room 7607, building 4, Silicon Valley Industrial Park, Mingtang Road, Taishan District, Tai'an City, Shandong Province Patentee before: SHANDONG LIREN ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |