CN103387852A - 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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- CN103387852A CN103387852A CN2013103162520A CN201310316252A CN103387852A CN 103387852 A CN103387852 A CN 103387852A CN 2013103162520 A CN2013103162520 A CN 2013103162520A CN 201310316252 A CN201310316252 A CN 201310316252A CN 103387852 A CN103387852 A CN 103387852A
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- transfer passage
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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 a kind of carbonaceous solid particulates is transported to method and device thereof hyperbaric environment from atmospheric pressure environment.
Background technology
Human social development is growing to the demand of the energy, and fossil energy will be played a leading role always within considerable time from now on, is the most frequently used energy of human being's production life.The clean coal technology that arises at the historic moment, can carry out extensive high-efficiency gasification with 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, be not the maximization of simple equipment size, and should be on the basis of limited equipment size, by improving gasification intensity, realizes.Therefore new, the higher requirement that Coal Gasification Technology are proposed.Coal Gasification Technology mainly contains two kinds of technological lines at present, and a kind of is the coal water slurry gasification technology, and a kind of is powdered coal pressuring gasified technology.In all too many levels of powdered coal pressuring gasified technology, the 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.
Yet air conveying fine coal has many defects.This carrier gas consumption that is embodied on the one hand the fine coal delivery system is large, and when using nitrogen to do carrier gas, the synthetic gas nitrogen content is high, and is huge on the impact of the process efficiencies such as methyl alcohol and coal liquefaction, has to use CO
2Do carrier gas, cause CO
2Compression power consumption is huge, has offset to a certain extent oxygen consumption that the dried coal powder gasification brings and the reduction of coal consumption, can not give full play to the high advantage of bringing of dried coal powder gasification technology raw material energy density.On the other hand, in actual moving process, there are many factors that affects the fine coal mobility in air conveying fine coal.Research show (Xie Xiaoxu, impacting flowability of pulverized coal experimental study [D], Southeast China University, 2007,33-45.), the fine coal that same coal, different-grain diameter distribute, its flow capacity is variation 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 along with water in fine coal contains the increase of rate and variation; In addition, in the similar situation of other conditions, the difference of fine coal surface tissue also has the impact of highly significant on the mobility of fine coal.And it is lower due to speed in the High-pressure Super Dense-phase process of pneumatic transmission, solid concentration is very high, flow-pattern is complicated, stability of flow descends, moisture in fine coal can cause between pulverized coal particle forming the liquid bridge, and the particle surface cohesive force strengthens, and frictional force, viscous force and viscosity all change, the granulation phenomenon occurs, cause mobile unstable even plugging.Therefore for air conveying fine coal, no matter be dilute phase pneumatic conveying or Dense Phase Pneumatic Conveying, above problem all can't be ignored.
And it is evident that, for after fine coal and other carbonaceous solid particulates blend during as gasified raw material, due to the density between fine coal and other carbonaceous solid particulates and the difference of other character, by the air conveying conveying that can't effectively complete above-mentioned blended material.Therefore research and develop a kind of need not being very important by air conveying carrying method.
US3994418 discloses a kind of right cylinder of horizontal type for delivery of solid particulate device, this device arranges an opening for feed and a discharge port, in device inside, a pair of piston that can be independently reciprocal is arranged, at the feed entrance place, solid particle material enters two spaces between piston, material is filled by piston and is promoted to move to discharge port, at discharge port, the space of loading solid granule materials and the space of gasification reactor apparatus are connected, both pressure reaches equilibrium state, solid materials enters in gasification reactor apparatus, after unsnatching material, space between two pistons is closed, separately carry out again charging while jointly returning to the position of opening for feed.These apparatus and method can not be delivered to carbonaceous solid particulates such as fine coal etc. in the pressurized gasification reaction unit by strength.Yet the defect of this device is in its operational process to have a piston catch bar to be exposed to fully in the environment of high-pressure gasified reaction unit, will certainly affect like this whole service life of device; In addition, how the inner piston that is in opening for feed one side of this device when pushing discharge port to, can effectively avoid solid particle material to flow into from opening for feed in the chamber of piston back, is also to need the problem that solves.
US4400125 discloses a kind of with the method and apparatus of solid carbon particle transport to gasifying reactor.This device is vertical type cylinder body piston structure, in side position, cylindrical middle and upper part, one solid carbon particulate charge mouth is arranged, this opening for feed is connected with the 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 this discharge port separates gasifying reactor and right cylinder transfer passage by Self-resetting cover-plate type enclosed appts.After the solid carbon particle enters the right cylinder transfer passage by the 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, thereby reach, the solid carbon particle is transported to purpose in pressure gasification reactor by atmospheric pressure environment.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 fully, the frequent switching is easy to break down under harsh like this environment, operability is poor, also will have a greatly reduced quality its work-ing life, and maintenance difficulty and cost very high.In addition, the solid carbon particle is in entering the process of gasifying reactor, be easy to adhere on the Self-resetting cover plate, stopping property in the time of can affecting its closure, also therefore also designed gas hole for clearing up the solid carbon particle that adheres on the 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 purpose of this invention is to provide and a kind of carbonaceous solid particulates is transported to method and device hyperbaric environment from atmospheric pressure environment.
Provided by the present inventionly a kind of carbonaceous solid particulates is transported to device hyperbaric environment from atmospheric pressure environment, comprises transfer passage, opening for feed, feed control valve, discharge port and discharging control valve;
Described opening for feed and described transfer passage be for be arrangeding in parallel, and described opening for feed is along the radial direction setting of described transfer passage, and described opening for feed is connected with the top of described transfer passage;
Described feed control valve is controlled being communicated with and closure between described opening for feed and 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 by described discharging control valve, controls being communicated with and closure between described transfer passage and described discharge port;
Be provided with a conveyor piston that coordinates with it in described transfer passage.
In above-mentioned device, described device comprises several described opening for feeds; Described several opening for feeds are arranged along the radial symmetry of described transfer passage.
In above-mentioned device, described feed control valve can be the piston reciprocating type control valve.
In above-mentioned device, the mobile route of described feed control valve becomes the angle of 30～50 degree with described transfer passage.
In above-mentioned device, described discharging control valve can be the 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.
Apparatus of the present invention carbonaceous solid particulates is transported to high pressure carbonaceous solid particulates charging stock tank from the normal pressure feed bin in, the hyperbaric environment in charging stock tank and the atmospheric pressure environment in feed bin effectively can be isolated.
Carbonaceous solid particulates described in the present invention refers to various fine coal, the various biological particles of process processing and the general name of their mixture.
Utilize device provided by the invention that carbonaceous solid particulates is 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 feed control valve, by described discharging control valve, make described transfer passage and described discharge port be in closure state; 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 the effect of gravity;
(2) when described carbonaceous solid particulates is filled with described transfer passage, make described opening for feed and described transfer passage be in closure state by described feed control valve, make described transfer passage and described discharge port be in connected state by described discharging control valve simultaneously; Starting described conveyor piston can be pushed into described carbonaceous solid particulates in hyperbaric environment;
(3) after the described carbonaceous solid particulates in described transfer passage all inputs in hyperbaric environment, described conveyor piston upwards is pulled up to the top port place of described transfer passage;
(4) repeat above-mentioned steps (1)-step (3), can realize that circulation is transported to carbonaceous solid particulates in hyperbaric environment by atmospheric pressure environment.
Apparatus and method provided by the invention have the following advantages:
1, apparatus of the present invention can be transported to solid particulate hyperbaric environment from atmospheric pressure environment, and course of conveying does not need air conveying, can avoid air conveying many defects of bringing, have 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 are controlled by piston-type feed control valve and discharging control valve respectively, and simplicity of design is workable, long service life.
3, apparatus of the present invention can effectively meet the supply requirement of extensive high-efficiency gasification to the carbonaceous solid particulates raw material.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the running status schematic diagram of apparatus of the present invention under in working order;
In figure, each mark is as follows:
1 transfer passage, 2 conveyor pistons, 3 opening for feeds, 4 feed control valves, 5 discharge ports, 6 discharging control valves.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, 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.A conveyor piston that matches with it 2 is set transfer passage 1 is interior, in working order under, the 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 that 2 radial symmetry along transfer passage 1 distribute, and it be cylindrical channel, and diameter is 0.3m, and opening for feed 3 and transfer passage 1 be for be arrangeding in parallel, and opening for feed 3 is connected with the top of transfer passage 1.Feed control valves 4 are controlled being communicated with and closure between opening for feed 3 and transfer passage 1 to this device by with 1 one-tenth axial angle of transfer passage, being 45 degree.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 with 1 one-tenth axial angle of transfer passage being the discharging control valves 6 of 135 degree, and this discharging control valve 6 can be controlled being communicated with and closure between transfer passage 1 and 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 be adjusted as required.
Fig. 2 is the running status schematic diagram of above-mentioned e Foerderanlage under in working order, and Fig. 2 (a)～Fig. 2 (g) is for completing 7 stage condition schematic diagram of a complete feed cycle process.
Take fine coal as example, in the course of the work, at first this e Foerderanlage is in the state shown in Fig. 2 (a), and namely opening for feed 3 is opened, discharge port 5 closures, and conveyor piston 2 is in the top of transfer passage 1.At this moment, feed bin and transfer passage 1 are in connected state, and the fine coal that is stored in feed bin is injected in transfer passage 1 through opening for feed 3 by self gravity.When fine coal is filled with this transfer passage 1, opening for feed 3 closures, discharge port 5 is opened (being the state shown in Fig. 2 (b)), drives simultaneously conveyor piston 2 descending, and the fine coal in transfer passage 1 is at the uniform velocity sent into the state shown in (being Fig. 2 (c), 2(d) in the high-pressure powdered coal charging stock tank through discharge port).After the fine coal in transfer passage 1 was all sent in the high-pressure powdered coal charging stock tank, discharge port 5 closures, drove the state shown in conveyor piston 2 up (being Fig. 2 (e), 2(f) simultaneously).Stop driving when conveyor piston 2 goes upward to the top of transfer passage, then opening opening for feed 3(is the state shown in Fig. 2 (g)), the charging transport cycle of a unlatching new round (repeating the step of Fig. 2 (a)～2(g)).
In the gasification industrial applications, can select 2 covers or the 2 above e Foerderanlage echelons of the present invention of cover to the charging stock tank feed, the cycle of operation of every covering device is poor to be designed as basic norm to ensure to steadily at the uniform velocity supplying the carbonaceous solid particulates raw material in charging stock tank.
Below described embodiment of the present invention in detail, can do a lot of improvement and variation obviously for a person skilled in the art and can not deviate from essence spirit of the present invention.All these changes and improvements are all within protection scope of the present invention.
Claims (7)
1. one kind is transported to device hyperbaric environment with carbonaceous solid particulates from atmospheric pressure environment, it is characterized in that:
Described device comprises transfer passage, opening for feed, feed control valve, discharge port and discharging control valve;
Described opening for feed and described transfer passage be for be arrangeding in parallel, and described opening for feed is along the radial direction setting of described transfer passage, and described opening for feed is connected with the top of described transfer passage;
Described feed control valve is controlled being communicated with and closure between described opening for feed and 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 described transfer passage by described discharging control valve and go out being communicated with and closure between the material mouth with described;
Be provided with a conveyor piston that coordinates with it in described transfer passage.
2. device according to claim 1, it is characterized in that: described device comprises several described opening for feeds; Described several opening for feeds are arranged along the radial symmetry of described transfer passage.
3. device according to claim 1 and 2, it is characterized in that: described feed control valve is the piston reciprocating type control valve.
4. device according to claim 3 is characterized in that: the mobile route of described feed control valve becomes the angles of 30～50 degree with described transfer passage.
5. the described device of any one according to claim 1-4, it is characterized in that: described discharging control valve is the piston reciprocating type control valve.
6. device according to claim 5 is characterized in that: the mobile route of described discharging control valve becomes the angles of 120～135 degree with described transfer passage.
7. utilize the described device of any one in claim 1-6 that carbonaceous solid particulates is 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 feed control valve, by described discharging control valve, make described transfer passage and described discharge port be in closure state; 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 the effect of gravity;
(2) when described carbonaceous solid particulates is filled with described transfer passage, make described opening for feed and described transfer passage be in closure state by described feed control valve, make described transfer passage and described discharge port be in connected state by described discharging control valve simultaneously; Starting described conveyor piston can be pushed into described carbonaceous solid particulates in hyperbaric environment;
(3) after the described carbonaceous solid particulates in described transfer passage all inputs in hyperbaric environment, described conveyor piston upwards is pulled up to the top port place of described transfer passage;
(4) repeat above-mentioned steps (1)-step (3), can realize that circulation is transported to carbonaceous solid particulates in hyperbaric environment by atmospheric pressure environment.
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| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN103387852B CN103387852B (en) | 2015-02-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516752A (en) * | 2016-11-11 | 2017-03-22 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516752A (en) * | 2016-11-11 | 2017-03-22 | 航天长征化学工程股份有限公司 | Plunger type pulverized coal pressurized conveying device |
| 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 |
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