CN103387852B - Method and device for conveying calcium-containing solid particles from normal-pressure environment to high-pressure environment - Google Patents
Method and device for conveying calcium-containing solid particles from normal-pressure environment to high-pressure environment Download PDFInfo
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- CN103387852B CN103387852B CN201310316252.0A CN201310316252A CN103387852B CN 103387852 B CN103387852 B CN 103387852B CN 201310316252 A CN201310316252 A CN 201310316252A CN 103387852 B CN103387852 B CN 103387852B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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Abstract
The invention discloses a device for conveying calcium-containing solid particles from a normal-pressure environment to a high-pressure environment. The device comprises a conveying channel, a feeding hole, a feeding control valve, a discharge opening and a discharging control valve, wherein the feeding hole and the conveying channel are arranged in parallel; the feeding hole is formed along the radial direction of the conveying channel and is communicated with the upper part of the conveying channel; the feeding control valve controls communication and disconnection between the feeding hole and the conveying channel; the bottom of the conveying channel is connected with a semicircular sphere; the bottom of the semicircular sphere is in the shape of a reverse arc; the side wall of the semicircular sphere is communicated with the discharge opening, and communication and disconnection between the conveying channel and the discharge opening are controlled through the discharging control valve; a conveying piston matched with the conveying channel is arranged in the conveying channel. According to the device, the solid particles can be conveyed from the normal-pressure environment to the high-pressure environment, pneumatic transmission is not required in the conveying process, and thus multiple defects caused by pneumatic transmission can be overcome. The device has the advantages of high conveying efficiency, energy conservation, environment protection and the like.
Description
Technical field
The present invention relates to and a kind of carbonaceous solid particulates is transported to method hyperbaric environment and device thereof from atmospheric pressure environment.
Background technology
The demand of human social development to the energy is growing, and within considerable time from now on, fossil energy will be played a leading role always, is that human being's production is lived the most frequently used energy.The clean coal technology arisen at the historic moment, can carry out extensive high-efficiency gasification by solid carbon particles such as coals.Extensive high-efficiency gasification technology is the basis of the commercial runs such as the coal-based chemicals production of development, Coal-based Liquid Fuel, IGCC generating, polygenerations systeme, hydrogen manufacturing and fuel cell.The extensive high-efficiency gasification of coal, is not the maximization of simple equipment size, and should is on the basis of limited device size, realizes by improving gasification intensity.Therefore to new, the higher requirement that Coal Gasification Technology proposes.Current Coal Gasification Technology mainly contains two kinds of technological lines, and one is coal water slurry gasification technology, and one is powdered coal pressuring gasified technology.In all too many levels of powdered coal pressuring gasified technology, fine coal delivery system is one of gordian technique.In order to reach the high-efficiency gasification of coal, the mode of movement of fine coal develops into Dense Phase Pneumatic Conveying from initial dilute phase pneumatic conveying, and even High-pressure Super Dense-phase is air conveying.
But air conveying fine coal has many defects.This carrier gas consumption being embodied in fine coal delivery system is on the one hand large, and when using nitrogen to do carrier gas, synthetic gas nitrogen content is high, huge on the impact of the process efficiency such as methyl alcohol and coal liquifaction, has to use CO
2do carrier gas, cause CO
2compression power consumption is huge, counteracts dried coal powder to a certain extent and to gasify the oxygen consumption and the reduction of coal consumption brought, can not give full play to the high advantage brought of dried coal powder gasification technology raw material energy density.On the other hand, in actual moving process, there is many factors affecting fine coal mobility in air conveying fine coal.Research shows (Xie Xiaoxu, impacting flowability of pulverized coal experimental study [D], Southeast China University, 2007,33-45.), the fine coal of same coal, different-grain diameter distribution, and its flow capacity is deteriorated along with the increase of fine powder content in fine coal; Even the fine coal of identical coal, similar size distribution, its flow capacity also can be deteriorated containing the increase of rate along with water in fine coal; In addition, when other conditions are similar, the difference of fine coal surface tissue also has the impact of highly significant on the mobility of fine coal.And because speed is lower in High-pressure Super Dense-phase process of pneumatic transmission, solid concentration is very high, flow-pattern is complicated, stability of flow declines, moisture in fine coal can cause forming liquid bridge between pulverized coal particle, and particle surface cohesive force strengthens, and frictional force, viscous force and viscosity all change, there is granulation phenomenon, cause the instability even plugging of flowing.Therefore for air conveying fine coal, no matter be dilute phase pneumatic conveying or Dense Phase Pneumatic Conveying, above problem all cannot be ignored.
And it is evident that, for fine coal and other carbonaceous solid particulates blended rear as gasified raw material time, due to the difference of the density between fine coal and other carbonaceous solid particulates and other character, by the air conveying conveying that effectively cannot complete above-mentioned blended material.Therefore a kind of need not being very important by air conveying carrying method is researched and developed.
US3994418 discloses a kind of horizontal type cylinder unit for conveying solid substance particle, this device arranges an opening for feed and a discharge port, piston that a pair can be independently reciprocal is had in device inside, at feed entrance place, solid particle material enters the space between two pistons, material promotes to move to discharge port through piston after filling, at discharge port, the space of loading solid granule materials is connected with the space of gasification reactor apparatus, the two pressure reaches equilibrium state, solid materials enters in gasification reactor apparatus, after unsnatching material, space between two pistons closes, separately charging is carried out again when jointly returning to the position of opening for feed.These apparatus and method can not by strength by carbonaceous solid particulates as fine coal etc. is delivered in pressurized gasification reaction unit.But the defect of this device is to have a piston catch bar to be exposed in the environment of high-pressure gasified reaction unit completely in its operational process, will certainly affect the whole service life of device like this; In addition, this device inside is in the piston of opening for feed side when pushing discharge port to, how can effectively avoid solid particle material to flow in the chamber after piston from opening for feed, is also the problem needing to solve.
US4400125 discloses a kind of by the method and apparatus of solid carbon particle transport to gasifying reactor.This device is vertical cylinder piston structure, a solid carbon particulate charge mouth is had in position, side, cylindrical middle and upper part, this opening for feed is connected with material storage silo, isolated by sealed gate between this material storage silo and right cylinder transfer passage, this cylindrical lower end is the discharge port of solid carbon particle, and gasifying reactor and right cylinder transfer passage are separated by Self-resetting cover-plate type enclosed appts by this discharge port.After solid carbon particle enters right cylinder transfer passage by material storage silo by self gravitation, by the piston in right cylinder, the solid carbon particle of right cylinder transfer passage is pressed in gasifying reactor again, so move in circles, thus reach the object be transported to by atmospheric pressure environment by solid carbon particle in pressure gasification reactor.The main defect of these apparatus and method is, the Self-resetting cover-plate type enclosed appts of its lower end is placed in the high temperature and high pressure environment in gasifying reactor completely, under environment harsh like this, frequent opening and closing is easy to break down, operability is poor, its work-ing life also will have a greatly reduced quality, and maintenance difficulty and cost very high.In addition, solid carbon particle is in the process entering gasifying reactor, be easy to adhere on Self-resetting cover plate, can affect its closed time stopping property, also therefore have also been devised gas hole for clearing up the solid carbon particle adhered on Self-resetting cover plate in this patent, the design of whole device is very complicated, does not possess the prospect of heavy industrialization.
Summary of the invention
The object of this invention is to provide and a kind of carbonaceous solid particulates is transported to method hyperbaric environment and device from atmospheric pressure environment.
A kind of device carbonaceous solid particulates be transported to from atmospheric pressure environment hyperbaric environment provided by the present invention, comprises transfer passage, opening for feed, inlet control valve, discharge port and discharging control valve;
Described opening for feed and described transfer passage are for be arrangeding in parallel, and described opening for feed is arranged along the radial direction of described transfer passage, and described opening for feed is connected with the top of described transfer passage;
Described inlet control valve controls being communicated with and closing between described opening for feed with described transfer passage;
The bottom of described transfer passage is connected with described discharge port;
The bottom of described transfer passage is connected with half spherosome, and the bottom of described semicircle spheroid is reverse circular arc; The sidewall of described semicircle spheroid is connected with described discharge port, and controls being communicated with and closing between described transfer passage with described discharge port by described discharging control valve;
A conveyor piston coordinated with it is provided with in described transfer passage.
In above-mentioned device, described device comprises opening for feed described in several; Several opening for feeds described are arranged along the radial symmetry of described transfer passage.
In above-mentioned device, described inlet control valve can be piston reciprocating type control valve.
In above-mentioned device, the mobile route of described inlet control valve becomes the angle of 30 ~ 50 degree with described transfer passage.
In above-mentioned device, described discharging control valve can be piston reciprocating type control valve.
In above-mentioned device, the mobile route of described discharging control valve becomes the angle of 120 ~ 135 degree with described transfer passage.
In device provided by the invention, the driving method of described conveyor piston can adopt of the prior art any one, as driven by power.
Hyperbaric environment in charging stock tank and the atmospheric pressure environment in feed bin, while carbonaceous solid particulates be transported to high pressure carbonaceous solid particulates charging stock tank from normal pressure feed bin, can effectively be isolated by apparatus of the present invention.
Carbonaceous solid particulates described in the present invention refers to various fine coal, through the various biological particles of processing and the general name of their mixture.
Utilize device provided by the invention carbonaceous solid particulates to be transported to method hyperbaric environment from atmospheric pressure environment, comprise the steps:
(1) make described opening for feed and described transfer passage be in connected state by described inlet control valve, make described transfer passage and described discharge outlet in closure state by described discharging control valve; Carbonaceous solid particulates is inputed in described opening for feed; Described carbonaceous solid particulates flows into described transfer passage from described opening for feed under gravity;
(2) when described carbonaceous solid particulates fills described transfer passage, make described opening for feed and described transfer passage be in closure state by described inlet control valve, make described transfer passage and described discharge outlet in connected state by described discharging control valve simultaneously; Starting described conveyor piston can be pushed in hyperbaric environment by described carbonaceous solid particulates;
(3) when the described carbonaceous solid particulates in described transfer passage all inputs to after in hyperbaric environment, described conveyor piston is upwards pulled up to the top port place of described transfer passage;
(4) repeat above-mentioned steps (1)-step (3), circulation can be realized carbonaceous solid particulates is transported in hyperbaric environment by atmospheric pressure environment.
Apparatus and method provided by the invention have the following advantages:
1, solid particulate can be transported to hyperbaric environment from atmospheric pressure environment by apparatus of the present invention, and course of conveying does not need air conveying, can avoid air conveying brought many defects, has the advantages such as transport efficiency is high, energy-conserving and environment-protective;
2, the opening for feed of e Foerderanlage of the present invention and discharge port control respectively by piston-type inlet control valve and discharging control valve, and simplicity of design is workable, long service life.
3, apparatus of the present invention effectively can meet the supply requirement of extensive high-efficiency gasification to carbonaceous solid particulates raw material.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 be apparatus of the present invention in working order under running status schematic diagram;
In figure, each mark is as follows:
1 transfer passage, 2 conveyor pistons, 3 opening for feeds, 4 inlet control valve, 5 discharge ports, 6 discharging control valves.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1, provided by the inventionly a kind of carbonaceous solid particulates is comprised a transfer passage 1 from the device that atmospheric pressure environment is transported to hyperbaric environment, this transfer passage 1 is cylindrical structure, connect half spherosome 7 in the bottom of cylindrical structure, the bottom of this semicircle spheroid is reverse designed arc-shaped appearance; The height of this transfer passage 1 is 4m, and diameter of the housing is 0.5m, and its material is the steel alloy of surface through hardening treatment.In transfer passage 1, arrange a conveyor piston matched with it 2, in working order, solid carbon particle relies on the thrust of this conveyor piston 2 to be sent to high pressure carbonaceous solid particulates charging stock tank from transfer passage.This device also comprises the opening for feed 3 of 2 distributions of the radial symmetry along transfer passage 1, and it is cylindrical channel, and diameter is 0.3m, and opening for feed 3 and transfer passage 1 are for be arrangeding in parallel, and opening for feed 3 is connected with the top of transfer passage 1.By being 45 degree with the axial angle of transfer passage 1 one-tenth, inlet control valve 4 controls being communicated with closed between opening for feed 3 with transfer passage 1 to this device.The bottom of this transfer passage 1 is connected with discharge port 5, it is cylindrical channel, diameter is 0.3m, and this device also comprises the discharging control valve 6 that angle axial with transfer passage 1 one-tenth is 135 degree, and this discharging control valve 6 can control being communicated with closed between transfer passage 1 with discharge port 5.The lower end of this discharge port 5 is used for the opening for feed fixed seal connection with high pressure carbonaceous solid particulates charging stock tank.
In above-mentioned device, the number of set opening for feed can adjust as required.
Fig. 2 be above-mentioned e Foerderanlage in working order under running status schematic diagram, Fig. 2 (a) ~ Fig. 2 (g) is for completing 7 stage condition schematic diagram of a complete feed cycle process.
For fine coal, in the course of the work, first this e Foerderanlage is in the state shown in Fig. 2 (a), and namely opening for feed 3 is opened, and discharge port 5 closes, and conveyor piston 2 is in the top of transfer passage 1.Now, feed bin and transfer passage 1 are in connected state, are stored in fine coal in feed bin and are injected in transfer passage 1 through opening for feed 3 by self gravity.When fine coal fills this transfer passage 1, opening for feed 3 closes, discharge port 5 is opened (state namely shown in Fig. 2 (b)), drives conveyor piston 2 descending simultaneously, the fine coal in transfer passage 1 is at the uniform velocity sent into the state shown in (i.e. Fig. 2 (c), 2(d) in high-pressure powdered coal charging stock tank through discharge port).When the fine coal in transfer passage 1 is all sent into after in high-pressure powdered coal charging stock tank, discharge port 5 closes, and drives the state shown in conveyor piston 2 up (i.e. Fig. 2 (e), 2(f) simultaneously).Stop when conveyor piston 2 goes upward to the top of transfer passage driving, then open the state shown in opening for feed 3(and Fig. 2 (g)), open the step of the charging transport cycle (repeating Fig. 2 (a) ~ 2(g) of a new round).
In gasification industrial applications, 2 covers or the above e Foerderanlage echelon of the present invention of 2 cover can be selected charging stock tank feed, and the cycle of operation difference of every covering device is to ensure that steadily at the uniform velocity supplying carbonaceous solid particulates raw material for basic norm in charging stock tank designs.
Below describe embodiment of the present invention in detail, a lot of improvement can be done for a person skilled in the art obviously and change and essence spirit of the present invention can not be deviated from.All these changes and improvements are all within protection scope of the present invention.
Claims (4)
1. carbonaceous solid particulates is transported to the device hyperbaric environment from atmospheric pressure environment, it is characterized in that:
Described device comprises transfer passage, opening for feed, inlet control valve, discharge port and discharging control valve;
Described opening for feed and described transfer passage are for be arrangeding in parallel, and described opening for feed is arranged along the radial direction of described transfer passage, and described opening for feed is connected with the top of described transfer passage;
Described device comprises opening for feed described in several; Several opening for feeds described are arranged along the radial symmetry of described transfer passage;
Described inlet control valve controls being communicated with and closing between described opening for feed with described transfer passage;
The bottom of described transfer passage is connected with half spherosome, and the bottom of described semicircle spheroid is reverse circular arc; The sidewall of described semicircle spheroid is connected with described discharge port, and controls being communicated with and closing between described transfer passage with described discharge port by described discharging control valve;
A conveyor piston coordinated with it is provided with in described transfer passage;
Described inlet control valve is piston reciprocating type control valve;
Described discharging control valve is piston reciprocating type control valve.
2. device according to claim 1, is characterized in that: the mobile route of described inlet control valve becomes the angle of 30 ~ 50 degree with described transfer passage.
3. device according to claim 1 and 2, is characterized in that: the mobile route of described discharging control valve becomes the angle of 120 ~ 135 degree with described transfer passage.
4. utilize device according to any one of claim 1-3 carbonaceous solid particulates to be transported to method hyperbaric environment from atmospheric pressure environment, comprise the steps:
(1) make described opening for feed and described transfer passage be in connected state by described inlet control valve, make described transfer passage and described discharge outlet in closure state by described discharging control valve; Carbonaceous solid particulates is inputed in described opening for feed; Described carbonaceous solid particulates flows into described transfer passage from described opening for feed under gravity;
(2) when described carbonaceous solid particulates fills described transfer passage, make described opening for feed and described transfer passage be in closure state by described inlet control valve, make described transfer passage and described discharge outlet in connected state by described discharging control valve simultaneously; Starting described conveyor piston can be pushed in hyperbaric environment by described carbonaceous solid particulates;
(3) when the described carbonaceous solid particulates in described transfer passage all inputs to after in hyperbaric environment, described conveyor piston is upwards pulled up to the top port place of described transfer passage;
(4) repeat above-mentioned steps (1)-step (3), circulation can be realized carbonaceous solid particulates is transported in hyperbaric environment by atmospheric pressure environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316252.0A CN103387852B (en) | 2013-07-25 | 2013-07-25 | Method and device for conveying calcium-containing solid particles from normal-pressure environment to high-pressure environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316252.0A CN103387852B (en) | 2013-07-25 | 2013-07-25 | Method and device for conveying calcium-containing solid particles from normal-pressure environment to high-pressure environment |
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| CN103387852A CN103387852A (en) | 2013-11-13 |
| CN103387852B true CN103387852B (en) | 2015-02-11 |
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| CN201310316252.0A Active CN103387852B (en) | 2013-07-25 | 2013-07-25 | Method and device for conveying calcium-containing solid particles from normal-pressure environment to high-pressure environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106516752B (en) * | 2016-11-11 | 2024-05-28 | 航天长征化学工程股份有限公司 | Plunger type pulverized coal pressurized conveying device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994418A (en) * | 1972-06-15 | 1976-11-30 | Ab Motala Verkstad | Method of feeding material to a gas generator |
| US4400125A (en) * | 1981-06-12 | 1983-08-23 | Chevron Research Company | Method of and apparatus for charging ground hydrocarbonaceous material to a pressurized gasification system |
| CN1553825A (en) * | 2001-08-11 | 2004-12-08 | Method for transfer of particulate solid products between zones of different pressure | |
| CN201346456Y (en) * | 2008-12-29 | 2009-11-18 | 厦门紫金矿冶技术有限公司 | Autoclave feeding device |
| CN102700941A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Closed cavity type pressure varying dry powder pump device |
| CN102700940A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Compression type variable-pressure powder pump device |
| CN202609588U (en) * | 2012-05-29 | 2012-12-19 | 南京东鹰杰环保科技有限公司 | High-pressure continuous powder conveying device |
-
2013
- 2013-07-25 CN CN201310316252.0A patent/CN103387852B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994418A (en) * | 1972-06-15 | 1976-11-30 | Ab Motala Verkstad | Method of feeding material to a gas generator |
| US4400125A (en) * | 1981-06-12 | 1983-08-23 | Chevron Research Company | Method of and apparatus for charging ground hydrocarbonaceous material to a pressurized gasification system |
| CN1553825A (en) * | 2001-08-11 | 2004-12-08 | Method for transfer of particulate solid products between zones of different pressure | |
| CN201346456Y (en) * | 2008-12-29 | 2009-11-18 | 厦门紫金矿冶技术有限公司 | Autoclave feeding device |
| CN202609588U (en) * | 2012-05-29 | 2012-12-19 | 南京东鹰杰环保科技有限公司 | High-pressure continuous powder conveying device |
| CN102700941A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Closed cavity type pressure varying dry powder pump device |
| CN102700940A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Compression type variable-pressure powder pump device |
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