CN103112720A - High pressure conveyance gas recovery method - Google Patents

High pressure conveyance gas recovery method Download PDF

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Publication number
CN103112720A
CN103112720A CN2013100527000A CN201310052700A CN103112720A CN 103112720 A CN103112720 A CN 103112720A CN 2013100527000 A CN2013100527000 A CN 2013100527000A CN 201310052700 A CN201310052700 A CN 201310052700A CN 103112720 A CN103112720 A CN 103112720A
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CN
China
Prior art keywords
lock hopper
pressure
batch
tank
gas
Prior art date
Application number
CN2013100527000A
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Chinese (zh)
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CN103112720B (en
Inventor
于涛
亓为华
刘伟
柳春
王吉林
汤心逵
李嗣源
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安徽晋煤中能化工股份有限公司
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Priority to CN201310052700.0A priority Critical patent/CN103112720B/en
Publication of CN103112720A publication Critical patent/CN103112720A/en
Application granted granted Critical
Publication of CN103112720B publication Critical patent/CN103112720B/en

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Abstract

The invention discloses a high pressure conveyance gas recovery method which comprises a first storage tank, a second storage tank, a first locking hopper, a second locking hopper, a first feeding tank, a second feeding tank and a gas coupling tank. After the first feeding tank (second feeding tank) correspondingly receives a batch of power from the first locking hopper (second locking hopper), the first locking hopper (second locking hopper) is separated from the first feeding tank (second feeding tank). The first locking hopper is opened for equalizing pressure with a communication valve of the gas coupling tank, after pressure is balanced, the second locking hopper is opened for equalizing pressure with the communication valve of the gas coupling tank. When pressure of the first locking hopper, the gas coupling tank and the second locking hopper is balanced, the gas coupling tank is isolated, gases are discharged into a powdered coal storage tank so that a filter is used for discharging pressure of the first locking hopper, and meanwhile, pressure conveyance gases are used for punching the second locking hopper. According to the high pressure conveyance gas recovery method, conveyance gases can be partly recycled, energy dissipation is reduced, and recovery use ratio of conveyance gases is 50% compared with a single system.

Description

A kind of high-pressure delivery Gas recovering method

Technical field

The present invention relates to a kind of high-pressure delivery Gas recovering method.

Background technology

In recent years, along with the development of Coal Gasification Technology, the dried coal powder pressurized gasification rises rapidly at home, but a large amount of N2/CO2 of high pressure coal dust delivery consumes, this part conveying gas causes a large amount of wastes of energy carrying complete rear complete emptying.The present invention can increase and carries gas effciency, reduces discharging, reduces energy resource consumption, can be widely used in the double system or multi-system (even number) that high pressure powder carries and intermittently put (defeated) material unit.

In prior art, single system pressurization blowing process is as follows:

in the process of once feeding in raw material, fine coal in normal pressure fine coal basin enters the fine coal lock hopper by Action of Gravity Field, after being full of fine coal in the fine coal lock hopper, namely with fine coal basin and the isolation of all low-voltage equipments, then pressurize, when its pressure rises to identical with fine coal feed pressure tank, and fine coal is reduced to when being enough to receive a collection of fine coal to the material level in tank, open fine coal lock hopper and fine coal and carry out equilibrium of pressure to compensation flap between batch can, then open successively fine coal lock hopper and fine coal to two shutoff valves between batch can, fine coal enters fine coal to batch can by Action of Gravity Field, after the discharging of fine coal lock hopper is completed, by gas discharging to fine coal basin filter is carried out pressure release, after pressure release is completed again with fine coal basin UNICOM after equilibrium of pressure, at this moment, once feed in raw material and complete.

Summary of the invention

A kind of high-pressure delivery Gas recovering method is provided on purpose of the present invention, carries gas partially recycledly to utilize, reduce energy dissipation, the recovery utilization rate of comparing conveying gas with single system is 50%.

Technical scheme of the present invention is as follows:

A kind of high-pressure delivery Gas recovering method comprises that the first basin, the second basin, the first lock hopper, the second lock hopper, first, is characterized in that: specifically comprise following step to batch can, gas coupling tank to batch can, second:

A, basin blowing step: the powder in the first basin, the second basin by Action of Gravity Field respectively correspondence enter the first lock hopper, the second lock hopper;

B, lock hopper pressurization steps: after the first lock hopper, the second lock hopper are full of powder, with corresponding the first basin, the second basin and the isolation of all low-voltage equipments, UNICOM's the first lock hopper, the second lock hopper and gas coupling tank, all press, after equilibrium of pressure, separation gas coupling tank utilizes high-pressure delivery gas to continue the first lock hopper, the second lock hopper are carried out punching press, until pressure and corresponding first equates for batch can or second to batch can, punching press is completed;

C, lock hopper blowing step: when the first lock hopper, the second lock hopper pressure and corresponding first give batch can, the second feed pressure tank identical, and first when being enough to receive a collection of powder for batch can, second to batch can, first of UNICOM's the first lock hopper, the second lock hopper and correspondence gives batch can, second to batch can, powder enters first by Action of Gravity Field and gives batch can, second to batch can, after blowing is complete, isolation the first lock hopper, the second lock hopper;

D, lock hopper blowdown step: UNICOM's the first lock hopper, the second lock hopper and gas coupling tank, all to press, after equilibrium of pressure, separation gas coupling tank is opened the first lock hopper, the second lock hopper atmospheric valve, until pressure becomes normal pressure, pressure leak process is completed;

Wherein each circulation comprises above four steps, and two covers are the system of operation simultaneously, and when guaranteeing first set system lock hopper pressure process, the second cover system is in the lock hopper pressure leak process.

By the gas tank that is coupled, pressurization and the pressure leak process of two cover systems combined.

Compared with prior art, beneficial effect of the present invention is as follows:

1, carry gas partially recycledly to utilize, reduce energy dissipation.Compare with single system, the recovery utilization rate of conveying gas is 50%.The volume of supposing fine coal lock hopper and gas coupling tank is 50m 3, carry gas CO 2, fine coal lock hopper operation pressure is 6.0MPa(G), operating temperature is 80 ℃, circulation, can save under 1.5MPa actual gas 65Nm each time 3This part conveying gas is compressed into operation pressure theoretical power consumption 62Kw.It is the recyclable 62Kw energy of each single complete equipment of circulation.

2, simple to operate, small investment, the expansion tank that satisfies operating conditions gets final product.

3, the powder filter between lock hopper and coupling tank can be realized self-cleaning function, and when guaranteeing the lock hopper pressure release, powder is not brought into the coupling tank.

4, can be widely used in utilizing high-pressure delivery gas to carry the technique of normal pressure powder.

Description of drawings

Fig. 1 is process schematic representation of the present invention.

The specific embodiment

Referring to accompanying drawing, a kind of high-pressure delivery Gas recovering method comprises that the first basin 1, the second basin 2, the first lock hopper 3, the second lock hopper 4, first to batch can 6, gas coupling tank 7, specifically comprise following step to batch can 5, second:

A, basin blowing step: the powder in the first basin 1, the second basin 2 by Action of Gravity Field respectively correspondence enter the first lock hopper 3, the second lock hopper 4;

B, lock hopper pressurization steps: after the first lock hopper 3, the second lock hopper 4 are full of powder, with corresponding the first basin 1, the second basin 2 and the isolation of all low-voltage equipments, UNICOM's the first lock hopper 3, the second lock hopper 4 and gas coupling tank 7, all press, after equilibrium of pressure, separation gas coupling tank 7 utilizes high-pressure delivery gas to continue the first lock hopper 3, the second lock hopper 4 are carried out punching press, until pressure and corresponding first equates for batch can 5 or second to batch can 6, punching press is completed;

C, lock hopper blowing step: when the first lock hopper 3, the second lock hopper 4 pressure and corresponding first give batch can 6 pressure identical to batch can 5, second, and first when being enough to receive a collection of powder for batch can 5, second to batch can 6, first of UNICOM's the first lock hopper 3, the second lock hopper 4 and correspondence gives batch can 5, second to batch can 6, powder enters first by Action of Gravity Field and gives batch can 5, second to batch can 6, after blowing is complete, isolation the first lock hopper 3, the second lock hopper 4;

D, lock hopper blowdown step: UNICOM's the first lock hopper 3, the second lock hopper 4 and gas coupling tank 7, all to press, after equilibrium of pressure, separation gas coupling tank 7 is opened the first lock hopper 3, the second lock hopper 4 atmospheric valves, until pressure becomes normal pressure, pressure leak process is completed;

Wherein each circulation comprises above four steps, and two covers are the system of operation simultaneously, and when guaranteeing first set system lock hopper pressure process, the second cover system is in the lock hopper pressure leak process.

By the gas tank that is coupled, pressurization and the pressure leak process of two cover systems combined.

The present invention unites two into one two cover techniques by increase the coupling tank in two cover high-pressure delivery techniques, realizes the comprehensive application of high-pressure delivery gas, reduces emptying, reduces the loss of material and the degradation of energy that bring because of emptying.Gas coupling tank (as figure), by the gas tank that is coupled, the high pressure of realizing a covering device is dropped a hint the lock hopper of another set of device is carried out punching press.The present invention both can realize the coupling operation of two covering devices with two cover identical systems couplings together, can realize again the independent operation of single complete equipment, switches simple.

Claims (2)

1. high-pressure delivery Gas recovering method comprises that the first basin, the second basin, the first lock hopper, the second lock hopper, first, is characterized in that: specifically comprise following step to batch can, gas coupling tank to batch can, second:
A, basin blowing step: the powder in the first basin, the second basin by Action of Gravity Field respectively correspondence enter the first lock hopper, the second lock hopper;
B, lock hopper pressurization steps: after the first lock hopper, the second lock hopper are full of powder, with corresponding the first basin, the second basin and the isolation of all low-voltage equipments, UNICOM's the first lock hopper, the second lock hopper and gas coupling tank, all press, after equilibrium of pressure, separation gas coupling tank utilizes high-pressure delivery gas to continue the first lock hopper, the second lock hopper are carried out punching press, until pressure and corresponding first equates for batch can or second to batch can, punching press is completed;
C, lock hopper blowing step: when the first lock hopper, the second lock hopper pressure and corresponding first give batch can, the second feed pressure tank identical, and first when being enough to receive a collection of powder for batch can, second to batch can, first of UNICOM's the first lock hopper, the second lock hopper and correspondence gives batch can, second to batch can, powder enters first by Action of Gravity Field and gives batch can, second to batch can, after blowing is complete, isolation the first lock hopper, the second lock hopper;
D, lock hopper blowdown step: UNICOM's the first lock hopper, the second lock hopper and gas coupling tank, all to press, after equilibrium of pressure, separation gas coupling tank is opened the first lock hopper, the second lock hopper atmospheric valve, until pressure becomes normal pressure, pressure leak process is completed;
Wherein each circulation comprises above four steps, and two covers are the system of operation simultaneously, and when guaranteeing first set system lock hopper pressure process, the second cover system is in the lock hopper pressure leak process.
2. high-pressure delivery Gas recovering method according to claim 1 is characterized in that: by the gas tank that is coupled, pressurization and the pressure leak process of two cover systems combined.
CN201310052700.0A 2013-02-18 2013-02-18 High pressure conveyance gas recovery method CN103112720B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310052700.0A CN103112720B (en) 2013-02-18 2013-02-18 High pressure conveyance gas recovery method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310052700.0A CN103112720B (en) 2013-02-18 2013-02-18 High pressure conveyance gas recovery method

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CN103112720A true CN103112720A (en) 2013-05-22
CN103112720B CN103112720B (en) 2015-04-15

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482365A (en) * 2013-09-27 2014-01-01 大连金重鼎鑫科技有限公司 Solid material transporter and method utilizing solid material transporter to recycle high pressure gas
CN103662837A (en) * 2013-11-13 2014-03-26 新奥科技发展有限公司 Dense-phase conveying system and method
CN104194839A (en) * 2014-09-01 2014-12-10 中科合成油工程有限公司 Method for delivering powdered coal to pressurized gasification furnace in pressurized manner
CN104495389A (en) * 2014-12-03 2015-04-08 福建龙净环保股份有限公司 Material conveying method
CN105253631A (en) * 2015-11-18 2016-01-20 神华集团有限责任公司 Powder pressurized conveying device
CN105567335A (en) * 2014-10-13 2016-05-11 彭万旺 Pressurization treating method for coal dust
CN106906005A (en) * 2017-04-17 2017-06-30 航天长征化学工程股份有限公司 A kind of fine coal pressure conveyer device and method
CN110669551A (en) * 2019-10-28 2020-01-10 安徽理工大学 Coal gasification system and method
CN110760327A (en) * 2019-10-28 2020-02-07 安徽理工大学 Coal liquefaction device and process

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Publication number Priority date Publication date Assignee Title
CN1702149A (en) * 2005-06-28 2005-11-30 庞玉学 Safety sealing and air flow conveying method for fine coal gasification process
CN1715160A (en) * 2005-07-11 2006-01-04 西安热工研究院有限公司 Dry coal pressure closed phase conveyer with several discharge branches
CN102756920A (en) * 2012-07-30 2012-10-31 巨石集团有限公司 Continuous dense-phase positive-pressure pneumatic conveying apparatus and conveying method
CN203332973U (en) * 2013-06-07 2013-12-11 北京神雾环境能源科技集团股份有限公司 Pulverized coal pressurization conveying system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1702149A (en) * 2005-06-28 2005-11-30 庞玉学 Safety sealing and air flow conveying method for fine coal gasification process
CN1715160A (en) * 2005-07-11 2006-01-04 西安热工研究院有限公司 Dry coal pressure closed phase conveyer with several discharge branches
CN102756920A (en) * 2012-07-30 2012-10-31 巨石集团有限公司 Continuous dense-phase positive-pressure pneumatic conveying apparatus and conveying method
CN203332973U (en) * 2013-06-07 2013-12-11 北京神雾环境能源科技集团股份有限公司 Pulverized coal pressurization conveying system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482365B (en) * 2013-09-27 2017-05-24 大连金重鼎鑫科技有限公司 Solid material transporter and method utilizing solid material transporter to recycle high pressure gas
CN103482365A (en) * 2013-09-27 2014-01-01 大连金重鼎鑫科技有限公司 Solid material transporter and method utilizing solid material transporter to recycle high pressure gas
CN103662837A (en) * 2013-11-13 2014-03-26 新奥科技发展有限公司 Dense-phase conveying system and method
CN104194839A (en) * 2014-09-01 2014-12-10 中科合成油工程有限公司 Method for delivering powdered coal to pressurized gasification furnace in pressurized manner
CN104194839B (en) * 2014-09-01 2016-08-24 中科合成油工程股份有限公司 Fine coal pressurized delivered is to the method for pressurized-gasification furnace
CN105567335B (en) * 2014-10-13 2018-06-29 彭万旺 A kind of coal dust pressure treatment method
CN105567335A (en) * 2014-10-13 2016-05-11 彭万旺 Pressurization treating method for coal dust
CN104495389A (en) * 2014-12-03 2015-04-08 福建龙净环保股份有限公司 Material conveying method
CN104495389B (en) * 2014-12-03 2017-09-08 福建龙净环保股份有限公司 A kind of material conveying method
CN105253631A (en) * 2015-11-18 2016-01-20 神华集团有限责任公司 Powder pressurized conveying device
CN106906005A (en) * 2017-04-17 2017-06-30 航天长征化学工程股份有限公司 A kind of fine coal pressure conveyer device and method
CN110669551A (en) * 2019-10-28 2020-01-10 安徽理工大学 Coal gasification system and method
CN110760327A (en) * 2019-10-28 2020-02-07 安徽理工大学 Coal liquefaction device and process
CN110760327B (en) * 2019-10-28 2020-11-13 安徽理工大学 Coal liquefaction device and process

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Denomination of invention: A method of high pressure gas recovery

Effective date of registration: 20200927

Granted publication date: 20150415

Pledgee: Anhui Linquan rural commercial bank Limited by Share Ltd.

Pledgor: ANHUI JINMEI ZHONGNENG CHEMICAL INDUSTRIAL Co.,Ltd.

Registration number: Y2020980006516

PE01 Entry into force of the registration of the contract for pledge of patent right