CN212999224U

CN212999224U - Washing oil regeneration arranges sediment and peculiar smell processing apparatus

Info

Publication number: CN212999224U
Application number: CN202021307227.8U
Authority: CN
Inventors: 李希宝; 李亮
Original assignee: Shandong Shiheng Special Steel Group Co Ltd
Current assignee: Shandong Shiheng Special Steel Group Co Ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-20
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a slag and odor treatment device for washing oil regeneration, which comprises a regeneration tower and a steam pipeline arranged at the bottom of the regeneration tower; and a dry slag discharge pipe arranged at the bottom of the regeneration tower; a wet slag discharging pipe is arranged from the bottom to the lower part of the regeneration tower side on the inner side of the regeneration tower; the dry residue discharge pipe and the wet residue discharge pipe are both connected to the residual oil tank through a closing valve; the residual oil tank is connected to the decoking oil tank through a residual oil pump; the oil residue groove is of a closed structure; and the top of the air inlet pipe is provided with an air outlet pipe; the exhaust pipe is connected to the spray purification tower; the output end of the purification tower is connected to a flash tank; the flash tank is connected to an external discharge chimney through a fan. The utility model discloses a washing oil regeneration arranges sediment and peculiar smell processing apparatus, changes wet sediment into by dry sediment, has realized the closed circuit transport of dregs of fat, and the dregs of fat can reach the requirement for quality takeaway of tar, adopts peculiar smell exhaust treatment device among the row's sediment process, has realized washing oil regeneration's no solid useless production and processing link, has avoided the harm to the environment.

Description

Washing oil regeneration arranges sediment and peculiar smell processing apparatus

Technical Field

The utility model relates to a wash oil regeneration sediment processing apparatus, concretely relates to wash oil regeneration arrange sediment and peculiar smell processing apparatus belongs to wash oil regeneration sediment processing apparatus technical field.

Background

In the debenzolization procedure of the coking plant, when the operation of regenerating and draining the dry slag by the washing oil is adopted, the unit washing oil consumption in the crude benzene recovery can be reduced, but the following problems mainly exist in the process of draining the dry slag: 1. because the dry slag has poor fluidity, the condition that normal slag discharge cannot be realized due to pipeline blockage is easy to occur, and the normal production of an elution benzene system is greatly influenced; 2, the waste gas generated in the deslagging process has strong irritant peculiar smell and is easy to diffuse, so that people are extremely uncomfortable after inhaling the waste gas, and the atmosphere pollution is caused to the surrounding environment; 3. the solid waste formed by the discharged slag needs to be disposed, and the transportation and disposal of the solid waste are easy to form secondary pollution.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a washing oil regeneration arranges sediment and peculiar smell processing apparatus, through control regenerator temperature, will dry the sediment control for wet sediment or thick oil, sends into tar groove with exhaust thick oil through the pump, and the waste gas of emission in-process is collected and is purified the emission, realizes not having the solid useless production and the emission of free from extraneous odour.

The utility model relates to a slag and odor treatment device for washing oil regeneration, which comprises a regeneration tower and a steam pipeline arranged at the bottom of the regeneration tower; and a dry slag discharge pipe arranged at the bottom of the regeneration tower; a wet slag discharging pipe is arranged from the bottom to the lower part of the regeneration tower side on the inner side of the regeneration tower; the dry residue discharge pipe and the wet residue discharge pipe are both connected to the residual oil tank through a closing valve; the residual oil tank is connected to the decoking oil tank through a residual oil pump; when the regeneration tower carries out regeneration control, the regeneration temperature is reduced; the slag discharging temperature is reduced to about 190 ℃, and the lean wash oil is supplemented in time after slag discharging; the collected residual oil slag is sent into a cold drum tar oil groove by using a residual oil pump, the viscosity of the oil slag can be well controlled by reducing the regeneration temperature, the fluidity is good, wet slag is used for discharging slag, and the oil slag can be pressed into a wet slag discharging pipe from bottom to top by using the steam pressure in the tower during slag discharging, so that the wet slag is pressed out through the wet slag discharging pipe and discharged into the residual oil groove; the quality of the discharged oil residue can meet the quality requirement of tar oil takeout, the discharged slag materials are conveyed in a closed circuit, no secondary pollution is caused, and no solid waste is generated and no subsequent treatment link is generated in the slag discharging process; the oil residue groove is of a closed structure; and the top of the air inlet pipe is provided with an air outlet pipe; the exhaust pipe is connected to the spray purification tower; the output end of the spray purification tower is connected to a flash tank; the flash tank is connected to an external discharge chimney through a fan; when the slag is discharged, the peculiar smell waste gas is pumped into a cleaning tower, the waste gas enters the cleaning tower with the filler from the bottom, is fully contacted with a spray liquid from the top of the tower in a reverse direction, is washed and purified, then is discharged by a fan after being precipitated by a fog drip catcher and a flash tank, so that the waste gas is cooled, washed and purified, and is discharged after the peculiar smell is eliminated.

Further, the spray purification tower comprises a tower body; the inner side of the tower body is sequentially provided with a light porcelain packing layer, a spray tower tray and a catcher; the spray tower tray is connected to the circulating tank through a circulating pump; the circulating tank is connected with the bottom of the tower body; the exhaust pipe is connected to the bottom of the tower body.

Furthermore, a water replenishing pipe and an overflow pipe are arranged above the circulating tank; the overflow pipe is connected to a resid tank; through circulating pump and circulation tank cooperation, make spray liquid recycle, unnecessary part can overflow to the residual oil inslot, sprays circulation liquid cyclic utilization, and no waste water produces.

Furthermore, a temperature controller linked with a steam pipeline is arranged at the regeneration tower.

Compared with the prior art, the utility model discloses a washing oil regeneration's row's sediment and peculiar smell processing apparatus changes wet sediment into by dry sediment, has avoided blockking up row's sediment pipeline, has realized the closed circuit transport of dregs of fat, and the dregs of fat can reach the requirement for quality of tar and sell, has avoided solid useless processing link; and an odor waste gas treatment device is adopted in the slag discharging process, so that no solid waste generation and disposal link of washing oil regeneration is realized, no odor is discharged, and the harm to the environment is avoided.

Drawings

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

Detailed Description

Example 1:

the slag and odor treatment device for the regeneration of wash oil shown in figure 1 comprises a regeneration tower 1 and a steam pipeline arranged at the bottom of the regeneration tower; and a dry slag discharge pipe 2 arranged at the bottom of the regeneration tower; a moisture and slag discharging pipe 3 is arranged from the bottom to the lower part of the regeneration tower side on the inner side of the regeneration tower; the dry residue discharge pipe 2 and the wet residue discharge pipe 3 are both connected to a residual oil tank 5 through a closing valve 4; the oil sump 5 is connected to a decoking oil sump through an oil sump pump 6; when the regeneration tower carries out regeneration control, the regeneration temperature is reduced; the slag discharging temperature is reduced to about 190 ℃, and the lean wash oil is supplemented in time after slag discharging; the collected residual oil slag is sent into a cold drum tar oil groove by using a residual oil pump, the viscosity of the oil slag can be well controlled by reducing the regeneration temperature, the fluidity is good, wet slag is used for discharging slag, and the oil slag can be pressed into a wet slag discharging pipe from bottom to top by using the steam pressure in the tower during slag discharging, so that the wet slag is pressed out through the wet slag discharging pipe and discharged into the residual oil groove; the quality of the discharged oil residue can meet the quality requirement of tar oil takeout, the discharged slag materials are conveyed in a closed circuit, no secondary pollution is caused, and no solid waste is generated and no subsequent treatment link is generated in the slag discharging process; the oil residue groove 5 is of a closed structure; and the top of the air inlet pipe is provided with an air outlet pipe 7; the exhaust pipe 7 is connected to a spray purification tower; the output end of the spray purification tower is connected to a flash tank 9; the flash tank 9 is connected to an external discharge chimney 11 through a fan 10; in the deslagging process, a fan is started to suck peculiar smell waste gas into a spray purification tower, the peculiar smell waste gas is contacted with spray liquid of a packing layer in the tower to realize cooling and washing, then the peculiar smell waste gas enters a trap to remove water-containing fog drops, the purified waste gas is subjected to secondary water drop sedimentation through a flash tank before entering the fan, and then the waste gas is discharged through a chimney through the fan; spraying liquid is sent into a tower tray in the spraying purification tower by a spraying pump to realize uniform distribution, and naturally settles to the bottom of the spraying purification tower through a packing layer after being contacted and absorbed with waste gas and then enters a circulating tank; in order to prevent the spraying liquid amount from increasing gradually and overflowing, the circulating groove is communicated with the residual oil groove, so that the residual oil groove can be sent into a tar groove for dehydration treatment after entering the residual oil groove, and wastewater-free discharge and disposal are realized.

Wherein, the spray purification tower comprises a tower body 81; a light porcelain packing layer 82, a spray tray 83 and a catcher 84 are sequentially arranged on the inner side of the tower body 81; the shower tray 83 is connected to a circulation tank 86 by a circulation pump 85; the circulating tank 86 is connected with the bottom of the tower body 81; said exhaust duct 7 is connected to the bottom of the tower 81. A water replenishing pipe and an overflow pipe 87 are arranged above the circulating groove 86; the overflow pipe 87 is connected to the residual oil tank 5; through circulating pump and circulation tank cooperation, make spray liquid recycle, unnecessary part can overflow to the residual oil inslot, sprays circulation liquid cyclic utilization, and no waste water produces. And a temperature controller linked with a steam pipeline is arranged at the regeneration tower 1.

The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.

Claims

1. A washing oil regeneration slag and odor treatment device comprises a regeneration tower and a steam pipeline arranged at the bottom of the regeneration tower; and a dry slag discharge pipe arranged at the bottom of the regeneration tower; the method is characterized in that: a wet slag discharging pipe is arranged from the bottom to the lower part of the regeneration tower side on the inner side of the regeneration tower; the dry residue discharge pipe and the wet residue discharge pipe are both connected to the residual oil tank through a closing valve; the residual oil tank is connected to the decoking oil tank through a residual oil pump; the oil residue groove is of a closed structure; and the top of the air inlet pipe is provided with an air outlet pipe; the exhaust pipe is connected to the spray purification tower; the output end of the spray purification tower is connected to a flash tank; the flash tank is connected to an external discharge chimney through a fan.

2. The washing oil regeneration residue and odor treatment device according to claim 1, characterized in that: the spray purification tower comprises a tower body; the inner side of the tower body is sequentially provided with a light porcelain packing layer, a spray tower tray and a catcher; the spray tower tray is connected to the circulating tank through a circulating pump; the circulating tank is connected with the bottom of the tower body; the exhaust pipe is connected to the bottom of the tower body.

3. The washing oil regeneration residue and odor treatment device according to claim 2, characterized in that: a water replenishing pipe and an overflow pipe are arranged above the circulating groove; the overflow pipe is connected to a resid tank.

4. The washing oil regeneration residue and odor treatment device according to claim 1, characterized in that: and a temperature controller linked with a steam pipeline is arranged at the regeneration tower.