CN2575098Y

CN2575098Y - Atmospheric molten bath gasifying equipment

Info

Publication number: CN2575098Y
Application number: CN 02244473
Authority: CN
Inventors: 王有素
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-17
Filing date: 2002-10-17
Publication date: 2003-09-24
Anticipated expiration: 2012-10-17

Abstract

The utility model relates to a continuous extracting reaction device for supercritical water of coal, which comprises a feeder 1, a reactor 2 connected below the feeder, a ball valve 3 connected with the reactor, a remnant coal tank 4 connected below the ball valve, and a remnant coal discharge valve 5 connected below the remnant coal tank. The utility model is characterized in the top part of the feeder 1 is inserted with a supercritical water injecting pipe 6. The extracting reaction can be carried out continuously by the utility model, and the utility model is suitable for industrial process. Because of the multivariate injection mode, the extracting reaction process can be reinforced, and the reaction speed is accelerated. The utility model has the advantages that extractant is cheap and facile, the extractant is non-toxic and harmless, supercritical water can be used in a circulating mode, the reaction condition is relative safe, and the utility model has no pollution to the environment.

Description

The supercritical water continuous extraction reaction unit of coal

Technical field

The utility model relates to the direct liquefaction equipment of coal, particularly a kind of supercritical water continuous extraction reaction unit of coal.

Technical background

Coal can carry out supercritical gas extraction and directly obtain oil fuel under certain temperature and pressure condition.Science researcher both domestic and external has successively carried out a large amount of research, has obtained some experiment achievements.The scientist of Britain in 1975 at first is extraction agent with toluene, carries out the extraction test of coal under the supercritical state of 350 ℃ and 10Mpa pressure.On July 1st, 1992, it is 87102560 that the Chinese patent communique discloses number of patent application.4, the authorization notification number is 1017251, name is called the patent of invention specification sheets of " continous process of supercritical gas extraction of coal and device thereof "; Though this patented technology has solved the problem of continuous extraction,, structure of reactor imperfection, reactant also flow from reactor and descend, and intermolecular effective collision rate is not high, thereby reaction effect is relatively poor, and speed is low; Use this method also to need to prepare equipment and the high-pressure pump handling equipment is supporting with coal slurry, so investment is big, the power consumption height.In addition, the extraction agent of use is inflammable and explosive, toxic, contaminate environment and the high organic solvent of price, under the higher reaction conditions of temperature, pressure, is prone to accidents, thereby has increased the difficulty that realizes suitability for industrialized production.

The content of invention

At the deficiency that prior art exists, the utility model provides a kind of reaction efficiency height, speed height, and environmentally safe, safe and reliable, less investment, energy consumption are low, is suitable for the supercritical water continuous extraction reaction unit of the coal of suitability for industrialized production.

The supercritical water continuous extraction reaction unit of coal described in the utility model, comprise feeder, be connected reactor below the feeder, be connected reactor ball valve, be connected residual coal jar below the ball valve, be connected the residual coal bleed valve below the residual coal jar, it is characterized in that being inserted with the supercritical water spray tube at the top of feeder.

The supercritical water continuous extraction reaction unit of described coal is characterized in that feeder top is cylinder, and the bottom is funnelform collapsible tube, and the outlet of collapsible tube connects trunnion, connects diffuser tube under the trunnion, is pipe connecting under the diffuser tube, and stretches into the top of reactor; The supercritical water spray tube inserts from the top of feeder, conical nozzle near and over against the outlet of collapsible tube; Vacuum breaker is connected the middle and upper part of feeder top cylinder.Supercritical water mixes with coal dust from the conical nozzle ejection of spray tube, has increased the effective collision between reactant molecule, thereby has strengthened reaction process, has accelerated speed of reaction.

The supercritical water continuous extraction reaction unit of described coal, its reactor top is cylinder, the bottom is the circular cone tube, sidewall is separately installed with filter disc, safety valve, thermowell and the mixed steam outlet pipe of powder of stainless steel moulding on the pipe connecting outlet of the feeder that stretches into cylinder top, on the mixed steam outlet pipe tensimeter is housed.The effect of filter disc is to stop that coal dust discharges from the mixed steam outlet pipe.Safety valve is to shield when the reactor pressure superelevation.Thermowell is used to insert the temperature in the thermometer Indicator Reaction device.

The filter inlet pipe that the supercritical water continuous extraction reaction unit of described coal, the middle and upper part of its residual coal jar are equipped with the powder of stainless steel moulding is connected with this filter disc, and supercutical fluid admission valve, tensimeter and the reducing valve of water is housed on the inlet pipe.Ball valve below opening reactor discharges before the residual coal, open admission valve feeds water in residual coal jar the supercutical fluid pressure in raising jar earlier, make in itself and the reactor pressure near or equate, open ball valve again and fall in the residual coal jar by the residual coal in the reactor; Before residual coal bleed valve below opening residual coal jar discharges residual coal, close ball valve earlier, after open reducing valve and emit gas in the residual coal jar, filter stops that residual coal emits with gas, the pressure in jar is opened residual coal bleed valve again and is discharged residual coal after reducing.

The utility model can make extractive reaction carry out continuously, is suitable for suitability for industrialized production; Changeable spray regime has been strengthened the extractive reaction process, has accelerated speed of reaction.The extraction agent that uses is cheap and easy to get, nontoxic, can recycle supercritical water, and reaction conditions is comparatively safe, environmentally safe; The utility model does not need coal slurry to prepare equipment and the high-pressure pump e Foerderanlage is supporting, and less investment, energy consumption are low.

Description of drawings

Fig. 1 is an organigram of the present utility model.

Embodiment

Referring to Fig. 1, the supercritical water fluid of high-voltage high-speed is from the conical nozzle ejection of the supercritical water spray tube 6 that is contained in feeder 1 top, carry out effective hybrid reaction at collapsible tube 14 places and from the vacuum breaker 7 automatic 80-100 purpose coal dusts that suck, and carry out extruding reaction by trunnion 15 at a high speed, continue to flow through diffuser tube 16 and pipe connecting 17 spurted into top and is equipped with in the reactor 2 of safety valve 9 and thermowell 10, produce violent turbulent flow owing to enter the fluid of reactor 2 from pipe connecting 17, the supercritical extraction reaction is proceeded, and separated thereupon; The mixture of supercritical water extraction agent and isolated vaporized fuel oil, passes filter disc 8 and enters separator from the mixed steam outlet pipe 11 on top after gravity separation with residual coal; Before the residual coal of ball valve 3 dischargings below opening reactor 2, open the admission valve 20 that is contained on the steam inlet pipe 21 earlier and in residual coal jar 4, feed high-pressure water vapor with the pressure in the jar that raises, tensimeter 12 readings on the reading that makes the tensimeter 19 that is installed on the steam inlet pipe 21 and the reactor mixed steam outlet pipe 11 near or when equating, open ball valve 3 again, residual coal is put into residual coal jar 4; Before the residual coal of residual coal bleed valve 5 dischargings below opening residual coal jar 4, close ball valve 3 earlier, after open reducing valve 20 and emit gas in the residual coal jar 4, filter 13 stops that residual coal emits with gas, after pressure in jar reduces, open the residual coal of residual coal bleed valve 5 dischargings again.

The utility model volume is little, but can handle a large amount of solid coal dusts continuously, during suitability for industrialized production, and can be with multiple devices production in parallel.

Claims

1, the supercritical water continuous extraction reaction unit of coal, comprise feeder (1), be connected reactor (2) below the feeder, be connected reactor ball valve (3), be connected residual coal jar (4) below the ball valve, be connected the residual coal bleed valve (5) below the residual coal jar, it is characterized in that being inserted with supercritical water spray tube (6) at the top of feeder (1).

2, the supercritical water continuous extraction reaction unit of coal according to claim 1, it is characterized in that feeder (1) top is cylinder, the bottom is funnelform collapsible tube (14), the outlet of collapsible tube connects trunnion (15), connect diffuser tube (16) under the trunnion, be pipe connecting (17) under the diffuser tube, and stretch into the top of reactor (2); Supercritical water spray tube (6) inserts from the top of feeder (1), conical nozzle near and over against the outlet of collapsible tube (14); Vacuum breaker (7) is connected the middle and upper part of feeder (1) top cylinder.

3, the supercritical water continuous extraction reaction unit of coal according to claim 1, it is characterized in that reactor (2) top is cylinder, the bottom is the circular cone tube, sidewall is separately installed with filter disc (8), safety valve (9), thermowell (10) and mixed steam outlet pipe (11) on pipe connecting (17) outlet of the feeder that stretches into cylinder top (1), and tensimeter (12) is housed on the mixed steam outlet pipe.

4, the supercritical water continuous extraction reaction unit of coal according to claim 1, the middle and upper part that it is characterized in that residual coal jar (4) is equipped with filter (13), inlet pipe (21) is connected with this filter disc (13), and supercutical fluid admission valve (18), tensimeter (19) and the reducing valve (20) of water is housed on the inlet pipe (21).