CN219209102U

CN219209102U - Coke oven gas desulfurization treatment device

Info

Publication number: CN219209102U
Application number: CN202221940944.3U
Authority: CN
Inventors: 聂江
Original assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Current assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-06-20
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a coke oven gas desulfurization treatment device, which comprises a sulfur foam liquid tank for storing sulfur foam liquid obtained from coke oven gas treatment, wherein an outlet of the sulfur foam liquid tank is connected with a plate-and-frame filter press for dehydration through a pipeline, a filtered water outlet of the plate-and-frame filter press is connected with a liquid collecting tank, and part of liquid in the liquid collecting tank is circulated to the lower part of the sulfur foam liquid tank for dredging through pressurization; the filtering liquid of the plate-and-frame filter press is conveyed to the cyclone dredger for treating the adhesive of the conical opening at the lower part of the sulfur foam liquid tank by pressurization, substances adhered on the inner wall of the conical opening at the lower part of the sulfur foam liquid tank are flushed and discharged along the outlet at the lower part, the discharging speed of the sulfur foam liquid tank is improved, the blocking phenomenon is prevented, and the stable operation of the subsequent desulfurization process is ensured.

Description

Coke oven gas desulfurization treatment device

Technical Field

The utility model relates to the field of coking gas desulfurization treatment, in particular to a coke oven gas desulfurization treatment device.

Background

The existing sulfur melting kettle mode is adopted in the coke oven gas desulfurization process to produce sulfur, the number of sulfur melting kettles is small due to the original design, the dehydration treatment speed of sulfur foam cannot meet the requirement, the stable desulfurization production is severely restricted, and meanwhile, the sulfur melting kettle operation difficulty is high, the energy consumption is high and the production is unstable due to the sulfur melting kettle process. And moreover, sulfur paste substances are easily adhered to the inner wall of the conical opening at the lower part of the sulfur foam liquid storage tank at the front end of the sulfur melting kettle, so that the discharging speed of the bottom outlet of the sulfur foam liquid storage tank is low, and the normal operation of the subsequent desulfurization process is influenced.

Disclosure of Invention

In order to solve the problems, the utility model provides a coke oven gas desulfurization treatment device.

The utility model is realized by the following technical scheme:

a desulfurization treatment device for coke oven gas comprises a sulfur foam liquid tank for storing sulfur foam liquid obtained from coke oven gas treatment, wherein an outlet of the sulfur foam liquid tank is connected with a plate-and-frame filter press for dehydration through a pipeline, a filtered water outlet of the plate-and-frame filter press is connected with a liquid collecting tank, and part of liquid in the liquid collecting tank is circulated to the lower part of the sulfur foam liquid tank through pressurization for dredging.

Further alternatively, the outlet of the liquid collecting tank is conveyed to the circulating water system for recycling through a conveying pipeline, a dredging pipeline is connected to a bypass of the conveying pipeline, and a conveying pump is arranged on the conveying pipeline.

Further alternatively, the outlet of the dredging line is connected with a cyclone dredger arranged at the lower part of the sulfur foam liquid tank.

Further alternatively, the cyclone dredger comprises a plurality of annular pipes arranged outside the upper end of the discharge port of the sulfur foam liquid tank, and each annular pipe is communicated with the lower part of the sulfur foam liquid tank through a plurality of spray pipes.

Further optionally, the liquid spraying pipe is inclined to the upper portion of the sulfur foam liquid tank.

Further alternatively, a stirrer is arranged in the sulfur foam liquid tank, and the cyclone dredger 7 is arranged at the lower part of the stirrer.

Further optionally, control valves are installed on the dredging line and the delivery line.

Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts the plate-and-frame filter press which is rapid and convenient to operate to filter and press the sulfur foam, can well meet the treatment requirement of the dehydration of the sulfur foam, and realizes the stable production of desulfurization; the filtering liquid of the plate-and-frame filter press is conveyed to the cyclone dredger for treating the adhesive of the conical opening at the lower part of the sulfur foam liquid tank by pressurization, substances adhered on the inner wall of the conical opening at the lower part of the sulfur foam liquid tank are flushed and discharged along the outlet at the lower part, the discharging speed of the sulfur foam liquid tank is improved, the blocking phenomenon is prevented, and the stable operation of the subsequent desulfurization process is ensured.

Drawings

FIG. 1 is a system diagram of the present utility model;

FIG. 2 is a schematic diagram of the structure of the cyclone dredger;

in the figure: a sulfur foam liquid tank 1, a plate-frame filter press 2, a liquid collecting tank 3, a conveying pipeline 4, a conveying pump 5, a dredging pipeline 6, a cyclone dredger 7, an annular pipe 8 and a liquid spraying pipe 9.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and detailed description:

as shown in figure 1, the desulfurization treatment device for coke oven gas comprises a sulfur foam liquid tank 1 for storing sulfur foam liquid obtained from coke oven gas treatment, wherein an outlet of the sulfur foam liquid tank 1 is connected with a plate-and-frame filter press 2 for dehydration through a pipeline, the rapid and convenient-to-operate plate-and-frame filter press is adopted for filtering and press-filtering sulfur foam, the treatment requirement of sulfur foam dehydration can be well met, stable desulfurization production is realized, a filtered water outlet of the plate-and-frame filter press 2 is connected with a liquid collecting tank 3, and part of liquid in the liquid collecting tank 3 is circulated to the lower part of the sulfur foam liquid tank 1 through pressurization for dredging.

As shown in fig. 1, the outlet of the liquid collecting tank 3 is conveyed to a circulating water system for recycling through a conveying pipeline 4, a dredging pipeline 6 is connected to a bypass of the conveying pipeline 4, and a conveying pump 5 is arranged on the conveying pipeline 4.

As shown in fig. 1, the outlet of the dredging pipeline 6 is connected with a cyclone dredger 7 arranged at the lower part of the sulfur foam liquid tank 1, and the cyclone dredger 7 can be started to clean when the bottom of the sulfur foam liquid tank 1 is stuck with materials.

As shown in fig. 2, the cyclone dredger 7 comprises a plurality of annular pipes 8 arranged outside the upper end of the discharge port of the sulfur foam liquid tank 1, each annular pipe 8 is communicated with the lower part of the sulfur foam liquid tank 1 through a plurality of spray pipes 9, and bonded materials on the inner wall of the lower part of the sulfur foam liquid tank 1 are cleaned by spraying through the spray pipes 9.

As shown in fig. 2, the spray pipe 9 is inclined to the upper part of the sulfur foam liquid tank 1, so that the spray liquid can form a rotational flow, and the washed-out adhesive is discharged from the outlet of the sulfur foam liquid tank 1.

As shown in fig. 1, a stirrer is provided in the sulfur foam bath 1, and a swirl dredger 7 is provided in the lower part of the stirrer.

As shown in fig. 1, control valves are installed on the dredging line 6 and the transfer line 4.

The implementation principle of the coke oven gas desulfurization treatment device provided by the embodiment of the application is as follows: the foam liquid desulfurized by coke oven gas enters a sulfur foam liquid tank 1 for storage and buffering, the sulfur foam liquid in the sulfur foam liquid tank 1 enters a plate-and-frame filter press 2 for filtering, the plate-and-frame filter press 2 is simple to operate, stable treatment of the sulfur liquid can be guaranteed, dehydration efficiency is improved, the sulfur foam liquid is filtered into sulfur paste with the water content less than 20%, filtrate generated by the plate-and-frame filter press 2 is conveyed into a liquid collecting tank 3 along a pipeline, and is conveyed into a water circulation system for recycling through a conveying pump 5 along a conveying pipeline 4;

when the inner wall of the conical opening at the lower part of the sulfur foam liquid tank 1 is stuck with sulfur paste substances to influence the discharging speed, a control valve on a dredging pipeline 6 can be opened periodically (every half month or 1 month), the liquid pressurized by a conveying pump 5 is conveyed to a cyclone dredger 7 along the dredging pipeline 6, and each annular pipe 8 entering the cyclone dredger 7 is sprayed out along an inclined spray pipe 9 to flush the substances stuck on the inner wall of the conical opening at the lower part of the sulfur foam liquid tank 1 to form cyclone, and the substances are discharged along the outlet at the lower part of the sulfur foam liquid tank 1, so that the discharging speed of the sulfur foam liquid tank 1 is improved to prevent the blockage phenomenon of the sulfur foam liquid tank 1 and ensure the stable operation of the subsequent desulfurization process.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A coke oven gas desulfurization treatment device comprising a sulfur foam liquid tank (1) for storing a sulfur foam liquid obtained from coke oven gas treatment, characterized in that: the outlet of the sulfur foam liquid tank (1) is connected with a plate-and-frame filter press (2) for dehydration through a pipeline, a filtered water outlet of the plate-and-frame filter press (2) is connected with a liquid collecting tank (3), and part of liquid in the liquid collecting tank (3) is circulated to the lower part of the sulfur foam liquid tank (1) through pressurization for dredging.

2. A coke oven gas desulfurization treatment apparatus according to claim 1, characterized in that: the outlet of the liquid collecting tank (3) is conveyed to a circulating water system for recycling through a conveying pipeline (4), a dredging pipeline (6) is connected to a bypass of the conveying pipeline (4), and a conveying pump (5) is arranged on the conveying pipeline (4).

3. A coke oven gas desulfurization treatment apparatus according to claim 2, characterized in that: the outlet of the dredging pipeline (6) is connected with a cyclone dredging device (7) arranged at the lower part of the sulfur foam liquid tank (1).

4. A coke oven gas desulfurization treatment device according to claim 3, characterized in that: the cyclone dredger (7) comprises a plurality of annular pipes (8) arranged on the outer side of the upper end of the discharge port of the sulfur foam liquid tank (1), and each annular pipe (8) is communicated with the lower portion of the sulfur foam liquid tank (1) through a plurality of liquid spraying pipes (9).

5. A coke oven gas desulfurization treatment apparatus according to claim 4, characterized in that: the liquid spraying pipe (9) is arranged at the upper part of the sulfur foam liquid tank (1) in an inclined way.

6. A coke oven gas desulfurization treatment device according to claim 3, characterized in that: the sulfur foam liquid tank (1) is internally provided with a stirrer, and the cyclone dredger (7) is arranged at the lower part of the stirrer.

7. A coke oven gas desulfurization treatment device according to claim 3, characterized in that: control valves are arranged on the dredging pipeline (6) and the conveying pipeline (4).