COAL PYROLYSIS PROCESS DEVICE

Abstract

A coal pyrolysis process device, including a primary coal pyrolysis device and a secondary coal pyrolysis device, wherein a discharge port of the primary coal pyrolysis device communicates with a feed port of the secondary coal pyrolysis device. When coal is in the primary coal pyrolysis device, coal tar is extracted to the maximum extent, and then enters the secondary coal pyrolysis device. The coal continues to be heated and undergo pyrolysis at an upper portion of the secondary coal pyrolysis device, so that volatile matter of upgraded coal having undergone primary pyrolysis and upgrading are further reduced in the secondary coal pyrolysis device, and more gas is produced.

Claims

1. A coal pyrolysis process device, comprising a primary coal pyrolysis device and a secondary coal pyrolysis device, wherein the primary coal pyrolysis device is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type; the primary coal pyrolysis device comprises a primary feed port, a primary discharge port, a primary coal gas outlet, and a heating mechanism in form of a primary radiant tube; the secondary coal pyrolysis device comprises a secondary feed port, a secondary discharge port, a secondary coal gas outlet, and a secondary heating mechanism; the primary discharge port communicates with the secondary feed port, coal tar is maximally extracted from coal in the primary coal pyrolysis device and then the coal is introduced into the secondary coal pyrolysis device, and the coal continues to be heated up and pyrolyzed at an upper portion of the secondary coal pyrolysis device, so that volatile matter of upgraded coal upgraded by a primary pyrolysis is further reduced in the secondary coal pyrolysis device, and more coal gas is produced.

2. The coal pyrolysis process device according to claim 1, wherein the secondary coal pyrolysis device is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type or a coal decomposition apparatus of a shaft kiln heat exchange type.

3. The coal pyrolysis process device according to claim 1, wherein the coal pyrolysis process device further comprises a coal drying device disposed upstream of the primary coal pyrolysis device, and dried coal is introduced into the primary coal pyrolysis device.

4. The coal pyrolysis process device according to claim 1, wherein the coal pyrolysis process device further comprises a deduster disposed at the primary coal gas outlet and a deduster disposed at the secondary coal gas outlet, and the deduster is a cyclone deduster or gravity deduster or a high temperature membrane filter having a filter element coated with a membrane at its surface.

5. The coal pyrolysis process device according to claim 4, wherein output of the primary coal gas outlet and output of the secondary coal gas outlet are mixed together and enter the high temperature membrane filter.

6. The coal pyrolysis process device according to claim 4, wherein output of the primary coal gas outlet and output of the secondary coal gas outlet are mixed together, and firstly pass through the cyclone deduster or the gravity deduster and then enter the high temperature membrane filter.

7. The coal pyrolysis process device according to claim 4, wherein the primary coal gas outlet leads to a first membrane filter, and the secondary coal gas outlet leads to a second membrane filter.

8. The coal pyrolysis process device according to claim 4, wherein output of the primary coal gas outlet passes through a first cyclone deduster or gravity deduster and then enters a first membrane filter, and output of the secondary coal gas outlet passes through a second cyclone deduster or gravity deduster and enters a second membrane filter.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0017] FIG. 1 is a schematic structural view of a first embodiment of the present disclosure;

[0018] FIG. 2 is a schematic structural view of a second embodiment of the present disclosure;

[0019] FIG. 3 is a schematic structural view of a third embodiment of the present disclosure; and

[0020] FIG. 4 is a schematic structural view of a fourth embodiment of the present disclosure.

DETAILED DESCRIPTION OF EMBODIMENTS

[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to FIGS. 1-4 of the embodiments of the present disclosure. It is apparent that the embodiments to be described are some, but not all of the embodiments of the present disclosure. All the other embodiments obtained by those of ordinary skill in the art in light of the described embodiments of the present disclosure will fall within the scope of the present disclosure as claimed.

First Embodiment

[0022] As shown in FIG. 1, a coal pyrolysis process device comprises a primary coal pyrolysis device 1 and a secondary coal pyrolysis device 2, wherein the primary coal pyrolysis device 1 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type, and the primary coal pyrolysis device 1 comprises a primary feed port 11, a primary discharge port 12, a primary coal gas outlet 13, and a heating mechanism in form of a primary radiant tube 14;

[0023] the secondary coal pyrolysis device 2 comprises a secondary feed port 21, a secondary discharge port 22, a secondary coal gas outlet 23, and a secondary heating mechanism 24;

[0024] the primary discharge port 12 communicates with the secondary feed port 21, coal tar is maximally extracted from coal in the primary coal pyrolysis device 1 and then the coal is introduced into the secondary coal pyrolysis device 2, and the coal continues to be heated up and pyrolyzed at an upper portion of the secondary coal pyrolysis device 2, so that volatile matter of the upgraded coal upgraded by the primary pyrolysis is further reduced in the secondary coal pyrolysis device 2, and more coal gas is produced.

[0025] The secondary coal pyrolysis device 2 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type.

[0026] The coal pyrolysis process device further comprises a coal drying device 3 disposed upstream of the primary coal pyrolysis device 1, and the dried coal is introduced into the primary coal pyrolysis device 1.

[0027] The primary coal gas outlet and the secondary coal gas outlet lead to a high temperature membrane filter 5.

Second Embodiment

[0028] As shown in FIG. 2, a coal pyrolysis process device comprises a primary coal pyrolysis device 1 and a secondary coal pyrolysis device 2, wherein the primary coal pyrolysis device 1 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type, and the primary coal pyrolysis device 1 comprises a primary feed port 11, a primary discharge port 12, a primary coal gas outlet 13, and a heating mechanism in form of a primary radiant tube 14;

[0029] the secondary coal pyrolysis device 2 comprises a secondary feed port 21, a secondary discharge port 22, a secondary coal gas outlet 23, and a secondary heating mechanism 24;

[0030] the primary discharge port 12 communicates with the secondary feed port 21, coal tar is maximally extracted from coal in the primary coal pyrolysis device 1 and then the coal is introduced into the secondary coal pyrolysis device 2, and the coal continues to be heated up and pyrolyzed at an upper portion of the secondary coal pyrolysis device 2, so that volatile matter of the upgraded coal upgraded by the primary pyrolysis is further reduced in the secondary coal pyrolysis device 2, and more coal gas is produced.

[0031] The secondary coal pyrolysis device 2 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type.

[0032] The coal pyrolysis process device further comprises a coal drying device 3 disposed upstream of the primary coal pyrolysis device 1, and the dried coal is introduced into the primary coal pyrolysis device 1.

[0033] The primary coal gas outlet 13 and the secondary coal gas outlet 23 converge through a cyclone deduster or gravity deduster 4 and then into the high temperature membrane filter 5.

Third Embodiment

[0034] As shown in FIG. 3, a coal pyrolysis process device comprises a primary coal pyrolysis device 1 and a secondary coal pyrolysis device 2, wherein the primary coal pyrolysis device 1 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type, and the primary coal pyrolysis device 1 comprises a primary feed port 11, a primary discharge port 12, a primary coal gas outlet 13, and a heating mechanism in form of a primary radiant tube 14;

[0035] the secondary coal pyrolysis device 2 comprises a secondary feed port 21, a secondary discharge port 22, a secondary coal gas outlet 23, and a secondary heating mechanism 24;

[0036] the primary discharge port 12 communicates with the secondary feed port 21, coal tar is maximally extracted from coal in the primary coal pyrolysis device 1 and then the coal is introduced into the secondary coal pyrolysis device 2, and the coal continues to be heated up and pyrolyzed at an upper portion of the secondary coal pyrolysis device 2, so that volatile matter of the upgraded coal upgraded by the primary pyrolysis is further reduced in the secondary coal pyrolysis device 2, and more coal gas is produced.

[0037] The secondary coal pyrolysis device 2 is a coal decomposition apparatus of a shaft kiln heat exchange type.

[0038] The coal pyrolysis process device further comprises a coal drying device 3 disposed upstream of the primary coal pyrolysis device 1, and the dried coal is introduced into the primary coal pyrolysis device 1.

[0039] The primary coal gas outlet 13 leads to a first membrane filter 51, and the secondary coal gas outlet 23 leads to a second membrane filter 52.

Fourth Embodiment

[0040] As shown in FIG. 4, a coal pyrolysis process device comprises a primary coal pyrolysis device 1 and a secondary coal pyrolysis device 2, wherein the primary coal pyrolysis device 1 is a coal decomposition apparatus which is in form of a rotary kiln radiant tube and of heating type, and the primary coal pyrolysis device 1 comprises a primary feed port 11, a primary discharge port 12, a primary coal gas outlet 13, and a heating mechanism in form of a primary radiant tube 14;

[0041] the secondary coal pyrolysis device 2 comprises a secondary feed port 21, a secondary discharge port 22, a secondary coal gas outlet 23, and a secondary heating mechanism 24;

[0042] the primary discharge port 12 communicates with the secondary feed port 21, coal tar is maximally extracted from coal in the primary coal pyrolysis device 1 and then the coal is introduced into the secondary coal pyrolysis device 2, and the coal continues to be heated up and pyrolyzed at an upper portion of the secondary coal pyrolysis device 2, so that volatile matter of the upgraded coal upgraded by the primary pyrolysis is further reduced in the secondary coal pyrolysis device 2, and more coal gas is produced.

[0043] The secondary coal pyrolysis device 2 is a coal decomposition apparatus of a shaft kiln heat exchange type.

[0044] The coal pyrolysis process device further comprises a coal drying device 3 disposed upstream of the primary coal pyrolysis device 1, and the dried coal is introduced into the primary coal pyrolysis device 1.

[0045] The primary coal gas outlet 13 leads to a first membrane filter 51, and the secondary coal gas outlet 23 leads to a second membrane filter 52.

[0046] Output of the primary coal gas outlet 13 passes through a first cyclone deduster or gravity deduster 41 and then enters a first membrane filter 51, and output of the secondary coal gas outlet 23 passes through a second cyclone deduster or gravity deduster 42 and enters a second membrane filter 52.

[0047] The above description is illustrative of preferred embodiments of the present disclosure, and it should be noted that several improvements and modifications can be made by those of ordinary skill in the art without departing from the principles described in the present disclosure, and these improvements and modifications should also be considered to fall within the scope of protection of the present disclosure.