CN209442931U - A kind of hydrogasification furnace conducive to gas solid separation and cooling - Google Patents

Abstract

The utility model discloses a kind of conducive to gas solid separation and cooling hydrogasification furnace, including the furnace tube that gasifies, the inside of gasification furnace tube is successively fixed with reaction chamber, reaction product heat exchanger, gas-solid separating device and solid cooling device from top to bottom, gasification furnace cylinder top is equipped with the nozzle being connected to reaction chamber, is connected with oxygen conveying pipe, fine coal delivery pipe and high-temperature hydrogen delivery pipe in the import of nozzle；The discharge port of reaction chamber bottom end is connected to the thermal medium inlet of reaction product heat exchanger, and the thermal medium outlet of reaction product heat exchanger is connected to the feed inlet of gas-solid separating device；The gas outlet of gas-solid separating device is connected to the thermal medium inlet of gas heat exchanger, the discharge port of gas-solid separating device is connected to the thermal medium inlet of solid cooling device, the utility model is provided with multiple gas-solid separating devices, improve the effect of gas solid separation, it is also provided with the solid cooling device and gas heat exchanger of identical quantity, so that cooling effect is more preferable.

Description

A kind of hydrogasification furnace conducive to gas solid separation and cooling

Technical field:

The utility model relates to fine coal hydrogasification fields, and in particular to a kind of conducive to gas solid separation and cooling hydrogenation Change furnace.

Background technique:

Hydrogasification refers to that carbon compound and hydrogen are anti-under the conditions of medium temperature (700-1000 DEG C) and high pressure (5-10MPa) It answers, generates the process of the raw gas, high added value aromatic hydrocarbons oil product and high heating value semicoke that are rich in methane.

In existing hydrogasification furnace, the synthesis gas that semicoke and synthesis gas use introducing extraneous in gasification furnace (is with one Carbonoxide and hydrogen are the synthesis gas of main component) mode cool down, the half of the extraneous synthesis gas of low temperature and furnace high-temperature The mixing of burnt and synthesis gas, so that the semicoke of furnace high-temperature and the decline of synthesis gas temperature, but the addition of extraneous synthesis gas, so that one Oxidation carbon component has been mixed into furnace in synthesis gas, is affected the hydrogen purity of synthesis gas in entire gasification furnace, is closed in subsequent furnace At in the purification process of gas, carbon monoxide removal device there is provision of, increase equipment cost investment indirectly, it is negative to increase work Lotus；The gas solid separation of semicoke and synthesis gas in furnace is carried out by the way of the sedimentation of semicoke self gravity, since semicoke particle is thinner And the self-characteristic that density is small, it does not tend to decrease, more semicokes are also blended in furnace in synthesis gas, and separating effect is poor.

Utility model content:

The purpose of this utility model is to provide a kind of hydrogasification furnaces for enabling gas-solid efficiently to separate and cool down

The utility model is implemented by following technical solution:

A kind of hydrogasification furnace conducive to gas solid separation and cooling, including gasification furnace tube, the interior of furnace tube that gasify Portion is successively fixed with reaction chamber, reaction product heat exchanger, gas-solid separating device and solid cooling device, the gasification furnace from top to bottom Cylinder top is equipped with the nozzle being connected to the reaction chamber, and oxygen conveying pipe, fine coal conveying are connected in the import of the nozzle Pipe and high-temperature hydrogen delivery pipe；The thermal medium inlet of the discharge port of the reaction chamber bottom end and the reaction product heat exchanger connects Logical, the thermal medium outlet of the reaction product heat exchanger is connected to the feed inlet of the gas-solid separating device；The gas solid separation The gas outlet of device is connected to the thermal medium inlet of gas heat exchanger, and the discharge port of the gas-solid separating device and the solid are cold But the semicoke of bottom stores up in the thermal medium inlet connection of device, the thermal medium outlet of the solid cooling device and the gasification furnace tube Qu Liantong is deposited, the gasification furnace tube bottom end is communicated with discharge gate, the gasification furnace tube side of the gas heat exchanger side Wall is equipped with exhaust outlet.

Preferably, the gas-solid separating device is cyclone separator.

It preferably, altogether include several gas-solid separating devices, several gas-solid separating devices are uniformly circumferentially positioned at The surrounding of reaction product heat exchanger bottom end.

Preferably comprising several gas heat exchangers, several gas heat exchangers and several gas solid separations Device is arranged in a one-to-one correspondence.

Preferably, the heat transferring medium of the gas heat exchanger is hydrogen, and the cold medium outlet of the gas heat exchanger passes through Pipeline is connect with the high-temperature hydrogen delivery pipe.

Preferably, the reaction product heat exchanger includes runner pipe, the top of the runner pipe and the reaction chamber bottom end Discharge port be connected to fix, the bottom end of the runner pipe is connected to fixation with the feed inlet of the gas-solid separating device；The circulation There are a horizontally disposed ring pipe in the inner upper of pipe and lower section respectively, if being communicated between two ring pipes dry and cold But it manages, the top ring pipe side is connected with cold medium outlet, and the lower section ring pipe side is connected with cold medium import, institute It states cold medium outlet and cold medium import is each passed through the runner pipe and the gasification furnace cylinder lateral wall.

Preferably, the solid cooling device is identical as the reaction product heat exchanger structure.

Preferably, the gasification furnace cylinder inboard wall has poured gasification furnace castable refractory.

Preferably, the gas-solid separating device, the gas heat exchanger and the solid cooling device pass through bracket and institute Gasification furnace cylinder inboard wall is stated to fix.

The advantages of the utility model:

1, the utility model is uniformly distributed in gasification furnace is provided with multiple gas-solid separating devices, enhances fractional dose, increases Add separating area, improves the effect of gas solid separation.

2, multiple solid cooling devices and gas heat exchanger are specially provided with, to after separation semicoke and synthesis gas carry out it is another Secondary heat exchange cooling, so that cooling effect is more preferable, it is thus also avoided that need to be added extraneous synthesis gas and cooled down, so that extraneous synthesis gas In carbon monoxide ingredient will not be mixed into furnace in synthesis gas, ensure that the hydrogen purity of synthesis gas in entire gasification furnace.

3, the hydrogen medium in gas heat exchanger forms high-temperature hydrogen after exchanging heat, and high-temperature hydrogen can be used as gasification furnace Unstripped gas is transmitted back to nozzle, and thermal energy returns inside gasification furnace again, and thermal energy is utilized effectively.

4, gas-solid is to be cooled separately, and the temperature that synthesis gas and semicoke after cooling need can separate to control.

5, the gas solid separation of hydrogasification furnace and cooling structure are designed inside gasification furnace, even if gas heat exchanger There is micro- leakage in hydrogen, but because being all hydrogen inside and outside gas heat exchanger, described not have too big shadow to gasification furnace internal-response It rings.

Detailed description of the invention:

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of structure described in the utility model；

Fig. 2 is the schematic diagram of reaction product heat exchanger described in the utility model.

In figure: gasification furnace tube 1, nozzle 2, reaction chamber 3, reaction product heat exchanger 4, cold medium import 41, cold medium go out Mouth 42, runner pipe 43, ring pipe 44, cooling tube 45, gas-solid separating device 5, gas heat exchanger 6, solid cooling device 7, discharge gate 8, exhaust outlet 9, gasification furnace castable refractory 10, bracket 11, semicoke storage area 12.

Specific embodiment:

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

As depicted in figs. 1 and 2, a kind of conducive to gas solid separation and cooling hydrogasification furnace, including gasification furnace tube 1, gas The inside for changing furnace tube 1 is successively fixed with reaction chamber 3, reaction product heat exchanger 4, gas-solid separating device 5 and solid from top to bottom Cooler 7, gasification 1 inner wall of furnace tube have poured gasification furnace castable refractory 10, and it is resistance to that gasification 1 inner wall of furnace tube has poured gasification furnace Fiery castable 10 prevents that furnace body is caused to burn out deformation because of high temperature, influences normal use, and gasification 1 top of furnace tube is equipped with and reacts The nozzle 2 that room 3 is connected to is connected with oxygen conveying pipe, fine coal delivery pipe and high-temperature hydrogen delivery pipe in the import of nozzle 2, reacts The discharge port of 3 bottom end of room is connected to the thermal medium inlet of reaction product heat exchanger 4, and hydrogen and fine coal are carried out in reaction chamber 3 Reaction, forms synthesis gas and semicoke, the thermal medium outlet of reaction product heat exchanger 4 are connected to the feed inlet of gas-solid separating device 5, Gas-solid separating device 5 is cyclone separator, altogether includes several gas-solid separating devices 5, several 5 uniform ring windings of gas-solid separating device The surrounding in 4 bottom end of reaction product heat exchanger is set, the semicoke of each cyclone collection and the reactant of synthesis gas mixing are made Amount is impartial, and workload is equal, while separating to reactant, and separative efficiency is high.

The gas outlet of gas-solid separating device 5 is connected to the thermal medium inlet of gas heat exchanger 6, the heat exchange of gas heat exchanger 6 Medium is hydrogen, and the cold medium outlet of gas heat exchanger 6 is connect by pipeline with high-temperature hydrogen delivery pipe, and gas heat exchanger 6 is logical It crosses low temperature hydrogen and heat exchange cooling is carried out to synthesis gas, low temperature hydrogen medium heats up with heat exchange, and high-temperature hydrogen sends reaction chamber back to 3, the high-temperature hydrogen conveyed on nozzle 2 is substituted, plays the role of heat recovery；The setting of gas heat exchanger 6 is in gasification furnace tube 1 Inside, gasification 1 internal temperature of furnace tube are high, it is possible to reduce the heat losses of hydrogen medium；It includes several gas heat exchangers 6, Several gas heat exchangers 6 are arranged in a one-to-one correspondence with several gas-solid separating devices 5, and several gas heat exchangers 6 are cooled down simultaneously, are mentioned Rise cooling effect.

The discharge port of gas-solid separating device 5 is connected to the thermal medium inlet of solid cooling device 7, solid cooling device 7 and gas-solid The quantity of separator 5 is identical, and several solid cooling devices 7 are cooled down simultaneously, promotes cooling effect, the heat of solid cooling device 7 Media outlet is connected to the semicoke storage area 12 of bottom in gasification furnace tube 1, and gasification 1 bottom end of furnace tube is communicated with discharge gate 8, gas 1 side wall of gasification furnace tube of 6 side of body heat exchanger is equipped with exhaust outlet 9.

Reaction product heat exchanger 4 includes runner pipe 43, and the top of runner pipe 43 is connected to solid with the discharge port of 3 bottom end of reaction chamber Fixed, the bottom end of runner pipe 43 is connected to fixation with the feed inlet of gas-solid separating device 5；The inner upper of runner pipe 43 and lower section difference There is a horizontally disposed ring pipe 44, several cooling tubes 45,45 side of upper annular pipe are communicated between two ring pipes 44 Face is connected with cold medium outlet 42, and 45 side of lower endless pipe is connected with cold medium import 41, cold medium outlet 42 and cold medium Import 41 is each passed through runner pipe 43 and gasification 1 side wall of furnace tube, and cooling water enters lower end ring pipe by cold medium import 41 44, then enter upper end ring pipe 44 through cooling tube 45, finally go out from cold medium outlet 42, the cooling water convection current in cooling tube 45 Reactant in siphunculus 43, which exchanges heat, to be cooled down；Solid cooling device 7 is identical as 4 structure of reaction product heat exchanger, and is to be situated between by water 43 top of runner pipe of matter, solid cooling device 7 is connected to fixation with the discharge port of gas-solid separating device 5, and reaction product heat exchanger 4 is right Synthesis gas and the reactant of semicoke mixing are cooling in furnace, and solid cooling device 7 is cooling to semicoke；Reaction product heat exchanger 4, gas change Hot device 6 and solid cooling device 7 are all made of different media and carry out independent cooling, can be to the cooling of reactant, synthesis gas and semicoke Carry out the control of different temperatures；Gas solid separation and cooling structure are designed inside gasification furnace tube 1, even if gas heat exchanger There is micro- leakage in 6 hydrogen medium, but because being all hydrogen inside and outside gas heat exchanger 6, to not having inside gasification furnace tube 1 Too much influence；Gas-solid separating device 5, gas heat exchanger 6 and solid cooling device 7 are by bracket 11 and gasification furnace tube 1 Wall is fixed；Reaction chamber 3, reaction product heat exchanger 4 inside gasification furnace tube 1, cold medium import 41, cold medium export 42, gas Solid separation device 5, gas heat exchanger 6, solid cooling device 7, bracket 11 and distributor 12 can be all made of incoloy800h alloy material Matter production.

Working principle: when the utility model is used, high-temperature hydrogen, oxygen, coal dust pass through high-temperature hydrogen delivery pipe, oxygen Delivery pipe and fine coal delivery pipe enter reaction chamber 3 by nozzle 2 and coal dust hydrogasification reaction occur, and form synthesis gas and semicoke is mixed The reactant of conjunction, reaction product heat exchanger 4 carry out preliminary cooling heat exchange to the reactant that reaction chamber 3 comes out, later reactant into Enter gas-solid separating device 5 and carry out gas solid separation, synthesis gas enters gas heat exchanger 6 and cooled down after separation, after cooling Synthesis gas is discharged to next system by exhaust outlet 9, and semicoke enters solid cooling device 7 and cools, and semicoke after cooling passes through Discharge gate 8 is discharged to next system.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (9)

1. a kind of conducive to gas solid separation and cooling hydrogasification furnace, which is characterized in that including the furnace tube that gasifies, the gasification furnace The inside of cylinder is successively fixed with reaction chamber, reaction product heat exchanger, gas-solid separating device and solid cooling device, institute from top to bottom State gasification furnace cylinder top and be equipped with the nozzle that is connected to the reaction chamber, be connected in the import of the nozzle oxygen conveying pipe, Fine coal delivery pipe and high-temperature hydrogen delivery pipe；The thermal medium of the discharge port of the reaction chamber bottom end and the reaction product heat exchanger The thermal medium outlet of inlet communication, the reaction product heat exchanger is connected to the feed inlet of the gas-solid separating device；The gas The gas outlet of solid separation device is connected to the thermal medium inlet of gas heat exchanger, the discharge port of the gas-solid separating device with it is described The thermal medium inlet of solid cooling device is connected to, bottom in the thermal medium outlet of the solid cooling device and the gasification furnace tube The connection of semicoke storage area, the gasification furnace tube bottom end is communicated with discharge gate, the gasification furnace of the gas heat exchanger side Cylinder lateral wall is equipped with exhaust outlet.

2. according to claim 1 a kind of conducive to gas solid separation and cooling hydrogasification furnace, which is characterized in that the gas Solid separation device is cyclone separator.

3. according to claim 1 or a kind of 2 any hydrogasification furnaces conducive to gas solid separation and cooling, feature exist In altogether including several gas-solid separating devices, several gas-solid separating devices are uniformly circumferentially positioned at the reaction product The surrounding of heat exchanger bottom end.

4. according to claim 3 a kind of conducive to gas solid separation and cooling hydrogasification furnace, which is characterized in that it includes Several gas heat exchangers, several gas heat exchangers are arranged in a one-to-one correspondence with several gas-solid separating devices.

5. according to claim 1, a kind of 2 or 4 any hydrogasification furnace conducive to gas solid separation and cooling, feature exist In the heat transferring medium of the gas heat exchanger is hydrogen, and the cold medium outlet of the gas heat exchanger passes through pipeline and the height Warm hydrogen delivery tube connection.

6. according to claim 1 a kind of conducive to gas solid separation and cooling hydrogasification furnace, which is characterized in that described anti- Answering product exchanger includes runner pipe, and the top of the runner pipe is connected to fixation with the discharge port of the reaction chamber bottom end, described The bottom end of runner pipe is connected to fixation with the feed inlet of the gas-solid separating device；The inner upper of the runner pipe and lower section difference There is a horizontally disposed ring pipe, several cooling tubes, the top ring pipe side are communicated between two ring pipes Face is connected with cold medium outlet, and the lower section ring pipe side is connected with cold medium import, the cold medium outlet and cold medium Import is each passed through the runner pipe and the gasification furnace cylinder lateral wall.

7. a kind of according to claim 1, any hydrogasification furnace conducive to gas solid separation and cooling in 2,4 or 6, feature It is, the solid cooling device is identical as the reaction product heat exchanger structure.

8. a kind of according to claim 1, any hydrogasification furnace conducive to gas solid separation and cooling in 2,4 or 6, feature It is, the gasification furnace cylinder inboard wall has poured gasification furnace castable refractory.

9. a kind of according to claim 1, any hydrogasification furnace conducive to gas solid separation and cooling in 2,4 or 6, feature It is, the gas-solid separating device, the gas heat exchanger and the solid cooling device pass through bracket and the gasification furnace tube Internal wall is fixed.