CN211863948U - Tar ammonia water separator - Google Patents

Abstract

Providing a tar ammonia water separation device; the device comprises a tar-ammonia mixed liquid inlet pipe, an ammonia water return pipe, a mixed liquid outlet pipe, a tar outlet pipe, an ammonia water storage tank, a top diffusion pipe, an ammonia water diffusion pipe, a heavy tar outlet pipe, a circulating ammonia water outlet pipe, a residual ammonia water outlet pipe, a tar liquid level inspection pipe, a manhole, an oil discharge pipe and a cone; the center of the cone top is communicated with a top diffusing pipe; a cone is arranged at the bottom of the container; the bottom outlet of the cone is communicated with a heavy tar outlet pipe; an ammonia water storage tank is formed outside the cone at the lower part of the ammonia water storage tank; the two sides of the lower part of the ammonia water storage tank are sequentially communicated with a residual ammonia water outlet pipe, an ammonia water return pipe inlet and an oil discharge pipe respectively; a tar outlet pipe is arranged on one side of the bottom in the cone; the advantages are that: simple structure, safe and reliable, convenient operation. After the device is used, the outside of the cone of the separation tank is a hot ammonia water storage tank, the temperature is about 75 ℃, the hot ammonia water is used for preserving the temperature of the mixture in the cone of the separation tank, no additional heating source is needed, the investment is saved, and the separation effect is ensured.

Description

Tar ammonia water separator

The technical field is as follows:

the utility model relates to a coking production facility technical field. In particular to a tar ammonia water separation device of a gas purification system of a coking plant.

Background art:

in the prior art, the raw gas generated in the coking production process of a coke oven reaches 650-700 ℃, and 5-6 m of dry coal per ton is used for reducing the temperature of the raw gas³The circulating ammonia water is sprayed on the bridge pipe to cool the raw gas, so that the temperature of the raw gas is reduced to about 80 ℃. The cooled tar, tar slag and ammonia water are sprayed from the raw gas and are conveyed to a gas purification system from a gas pipeline along with the gas. In the gas purification system, the tar residue, the tar and ammonia water mixed liquor are separated by a gas-liquid separator, the tar residue in the mixed liquor is removed after the mixed liquor passes through a slag separator, the mixed liquor containing the tar and the ammonia water is remained, if the mixed liquor is not separated, only the single spraying absorbs the gas in a gas primary cooler and absorbs the tar in the gas, and the rest mixed liquor can not be treated, so that the production can not be continuously carried out.

The utility model has the following contents:

the utility model aims at overcoming the defects of the prior art and providing a tar and ammonia water separating device which is safe, practical, reliable in work and convenient in operation.

The utility model discloses a solve the technical scheme that above-mentioned problem provided and be: a tar ammonia water separation device; the device comprises a tar-ammonia mixed liquid inlet pipe, an ammonia water return pipe, a mixed liquid outlet pipe, a tar outlet pipe, an ammonia water storage tank, a top diffusion pipe, an ammonia water diffusion pipe, a heavy tar outlet pipe, a circulating ammonia water outlet pipe, a residual ammonia water outlet pipe, a tar liquid level inspection pipe, a manhole, an oil discharge pipe and a cone; the tar and ammonia water separation device is a cylindrical hollow body with a conical top, and the center of the conical top is communicated with a top diffusion pipe; a cone is arranged at the bottom of the hollow cylinder; the bottom outlet of the cone is communicated with a heavy tar outlet pipe; an ammonia water storage tank is formed outside the cone at the lower part in the hollow cylinder; the two sides of the lower part of the ammonia water storage tank are sequentially communicated with a residual ammonia water outlet pipe, a manhole, an ammonia water return pipe inlet, a circulating ammonia water outlet pipe and an oil discharge pipe respectively; a tar outlet pipe is arranged on one side of the bottom in the cone; a tar liquid level inspection pipe, a mixed liquid outlet pipe and an ammonia water return pipe outlet are sequentially arranged on the tar outlet pipe; an ammonia water diffusing pipe is communicated with a pipe outside the outlet of the ammonia water return pipe; the central position of the cone is communicated with a tar ammonia water mixed liquid inlet pipe. It is also characterized in that: the ammonia water storage tank is a hot ammonia water storage tank with the temperature of about 75 ℃. The mixed liquid outlet pipe is led out from the middle upper part of the cone.

The utility model has the advantages that: the mixed liquid entering the tank is separated by manufacturing a tar and ammonia water separation tank device, the tar and ammonia water mixed liquid is separated at different parts of the tank, and the separated tar is directly sent into a storage tank as a coal chemical product and is used for producing products such as carbon black, industrial naphthalene, modified asphalt, anthracene oil, washing oil and the like; the separated ammonia water is sent into a bridge pipe of a coke oven production system to spray and cool the raw coke oven gas; after the mixed liquid entering the tank is led out, the mixed liquid is pumped to a coal gas primary cooler for spraying and absorbing impurities such as tar, naphthalene and the like in the coal gas; and the generated residual ammonia water is sent to a gas washing tower or a rich liquor tank and is used for washing ammonia gas, hydrogen cyanide and the like in the gas. The device has simple structure, safety, reliability and convenient operation. The outside of the cone of the separation tank is provided with a hot ammonia water storage tank, the temperature is about 75 ℃, the hot ammonia water is used for preserving the temperature of the mixture in the cone of the separation tank, no additional heating source is needed, the investment is saved, and the separation effect is ensured. The continuity and the stability of the production are ensured.

Description of the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the drawings: 1. a tar ammonia water mixed liquid inlet pipe; 2. an ammonia water return pipe; 3. a mixed liquid outlet pipe; 4. a tar outlet pipe; 5. an ammonia water storage tank; 6. a top vent tube; 7. an ammonia water diffusing pipe; 8. a heavy tar outlet pipe; 9. a circulating ammonia water outlet pipe; 10. a residual ammonia water outlet pipe; 11. a tar level inspection tube; 12. a manhole; 13. an oil discharge pipe; 14. a cone.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and examples. A tar ammonia water mixed liquid separation device. As shown in fig. 1, the device comprises a tar ammonia water mixed solution 1, an ammonia water return pipe 2, a mixed solution outlet pipe 3, a tar outlet pipe 4, an ammonia water storage tank 5, a top diffusing pipe 6, an ammonia water diffusing pipe 7, a heavy tar outlet pipe 8, a circulating ammonia water outlet pipe 9, a residual ammonia water outlet pipe 10, a tar liquid level inspection pipe 11, a manhole 12, an oil discharge pipe 13 and a cone 14; the tar and ammonia water separation device is a cylindrical hollow body with a conical top, and the center of the conical top is communicated with a top diffusion pipe 6; a cone 14 is arranged at the bottom of the hollow cylinder; the bottom outlet of the cone 14 is communicated with a heavy tar outlet pipe 8; an ammonia water storage tank 5 is formed outside a cone 14 at the lower part in the hollow cylinder; the two sides of the lower part of the ammonia water storage tank 5 are sequentially communicated with a residual ammonia water outlet pipe 10, a manhole 12, an inlet of the ammonia water return pipe 2, a circulating ammonia water outlet pipe 9 and an oil discharge pipe 13 respectively; a tar outlet pipe 4 is arranged at one side of the bottom in the cone 14; a tar liquid level inspection pipe 11, a mixed liquid outlet pipe 3 and an outlet of an ammonia water return pipe 2 are sequentially arranged on the tar outlet pipe 4; an ammonia water diffusing pipe 7 is communicated with a pipe outside the outlet of the ammonia water return pipe 2; the center of the cone 14 is communicated with a tar ammonia water mixed liquid inlet pipe 1. The ammonia water storage tank 5 is a hot ammonia water storage tank with the temperature of about 75 ℃. The mixed liquid outlet pipe 3 is led out from the middle upper part of the cone. The utility model discloses a theory of operation is: the tar ammonia water mixed solution separated from the coke oven raw gas enters the upper part of a cone 14 positioned in the center of the separation tank from a tar ammonia water mixed solution inlet pipe 1 after tar residue is removed; along with the rise of the liquid level and the lapse of time, the cone separating tank separates the mixed solution into three layers of an ammonia layer, a tar-ammonia mixed liquid layer and a tar layer, the separated ammonia is introduced into the ammonia return pipe 2 from the upper part of the separating tank, and then the ammonia is introduced into the ammonia storage tank 5; circulating ammonia water flows to a circulating ammonia water pump from a circulating ammonia water outlet pipe 9, and is pumped to a coke oven bridge pipe for spraying and cooling coke oven gas; after the redundant ammonia water in the ammonia water storage tank flows to the residual ammonia water storage tank from the residual ammonia water outlet pipe 10, the redundant ammonia water is sent to a coal gas washing tower or a washing rich liquor tank by a pump for washing ammonia, hydrogen cyanide and other substances in the coal gas, and then the redundant ammonia water and the rich liquor are sent to an ammonia distillation deacidification system; the mixed liquid led out from the mixed liquid outlet pipe 3 at the middle upper part of the cone 14 is sent to a coal gas primary cooler for spraying and absorbing impurities such as tar, naphthalene and the like in the coal gas; a tar level inspection pipe 11 for inspecting the tar level condition in the cone is led out from the middle lower part of the cone, a control valve of a tar outlet pipe 4 is opened, and tar naturally flows into a tar intermediate tank; automatically flowing to a storage tank, and then conveying to a tar processing workshop to produce products such as carbon black, industrial naphthalene, modified asphalt, anthracene oil, wash oil and the like; the heavy tar outlet pipe 8 is discharged from the bottom of the cone 14, the heavy tar is pumped to a deslagging box, and after tar residues are removed, the heavy tar and the tar-ammonia mixed liquid flow into the separation tank again for separation; the oil discharge pipe 13 at the lowest part of the ammonia water storage tank 5 is used for regularly discharging tar in the ammonia water to a pit and keeping the ammonia water free of tar; the manhole 12 is used for entering an ammonia water storage tank for construction during maintenance. The top diffusing pipe 6 is arranged at the top of the separation tank and is used for exhausting gas in the mixed liquid and keeping the pressure in the tank balanced; the ammonia water diffusing pipe 7 is arranged on the upper part of the ammonia water return pipe to keep the ammonia water to normally flow into the ammonia water storage tank from the ammonia water layer.

Claims (3)

1. The utility model provides a tar aqueous ammonia separator which characterized in that: the device comprises a tar ammonia water mixed liquid inlet pipe (1), an ammonia water return pipe (2), a mixed liquid outlet pipe (3), a tar outlet pipe (4), an ammonia water storage tank (5), a top diffusion pipe (6), an ammonia water diffusion pipe (7), a heavy tar outlet pipe (8), a circulating ammonia water outlet pipe (9), a residual ammonia water outlet pipe (10), a tar liquid level inspection pipe (11), a manhole (12), an oil discharge pipe (13) and a cone (14); the tar and ammonia water separation device is a cylindrical hollow body with a conical top, and the center of the conical top is communicated with a top diffusion pipe (6); a cone (14) is arranged at the bottom of the hollow cylinder; the bottom outlet of the cone (14) is communicated with a heavy tar outlet pipe (8); an ammonia water storage tank (5) is formed outside a cone (14) at the lower part in the hollow cylinder; the two sides of the lower part of the ammonia water storage tank (5) are sequentially communicated with a residual ammonia water outlet pipe (10), a manhole (12), an inlet of an ammonia water return pipe (2), a circulating ammonia water outlet pipe (9) and an oil discharge pipe (13) respectively; a tar outlet pipe (4) is arranged on one side of the bottom in the cone (14); a tar liquid level inspection pipe (11), a mixed liquid outlet pipe (3) and an outlet of an ammonia water return pipe (2) are sequentially arranged on the tar outlet pipe (4); an ammonia water diffusing pipe (7) is communicated with a pipe outside the outlet of the ammonia water return pipe (2); the center of the cone (14) is communicated with a tar ammonia water mixed liquid inlet pipe (1).

2. The tar-ammonia water separation device according to claim 1, wherein: the ammonia water storage tank (5) is a hot ammonia water storage tank with the temperature of about 75 ℃.

3. The tar-ammonia water separation device according to claim 1, wherein: the mixed liquid outlet pipe (3) is led out from the middle upper part of the cone.

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