CN216972157U

CN216972157U - Waste water recycling device in catalytic cracking device

Info

Publication number: CN216972157U
Application number: CN202123230474.XU
Authority: CN
Inventors: 张庆春; 乔长法; 吴国亮; 边红榜
Original assignee: Shandong Lianneng Engineering Co ltd
Current assignee: Shandong Lianneng Engineering Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-15
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a waste water recycling device in a catalytic cracking device.A waste water outlet of a flue gas desulfurization absorption tower is fixedly communicated with a particulate matter filtering device, an output end of the particulate matter filtering device is fixedly communicated with a water inlet of the flue gas desulfurization absorption tower through a circulating pump, the particulate matter filtering device comprises a rectangular box body, an upper cover which is convenient to disassemble is fixedly assembled at the upper end of the rectangular box body, a vibration self-cleaning filtering structure is fixedly assembled in an inner cavity of the rectangular box body, and a centrifugal stirring structure is fixedly assembled in the middle of the upper surface of the upper cover which is convenient to disassemble; particulate matter filter equipment is used for carrying out the centrifugal filtration of tiny particulate matter to the waste water of flue gas desulfurization absorption tower, stir the structure through the centrifugation and provide centrifugal power, utilize vibrations automatically cleaning formula filtration to filter waste water, vibrations automatically cleaning formula filtration can utilize vibrations to carry out self-cleaning after filtering, reduce and block up the risk, make and circulate to the aquatic tiny particulate matter content up to standard in the flue gas desulfurization absorption tower.

Description

Waste water recycling device in catalytic cracking device

Technical Field

The utility model relates to the technical field of wastewater recycling devices, in particular to a wastewater recycling device in a catalytic cracking device.

Background

The catalytic cracking process in petroleum production is the most important process operation for improving the processing depth of crude oil and producing high-quality gasoline and diesel oil, and a catalytic cracking device utilizes waste heat to generate medium-pressure steam; in order to ensure that the steam quality is qualified, the steam drum for steam generation must regularly and continuously discharge sewage from the steam drum, the sewage is firstly stored in a continuous discharge tank and a fixed discharge tank and then is periodically discharged, the design sewage discharge rate of the steam drum is 3-5% of the water supply of the steam drum, the sewage is directly discharged as waste water after low-pressure flash evaporation, the part of the waste water can be used for supplying water to a flue gas desulfurization absorption tower, the waste water of the flue gas desulfurization absorption tower is usually recycled after simple filtration, because the catalytic cracking flue gas desulfurization contains solid waste water in which catalyst particles are fine, the particles with the particle size of 1.0-5 mu m account for more than 76%, and the solid content is up to 0.15% -0.5%, the separation efficiency is low due to the conventional liquid-solid precipitation method, the requirement of the discharge standard cannot be met, and a fine filter is frequently blocked, so that the requirement of normal operation of a production device is more difficult to meet after the flue gas discharge standard is improved, and in order to solve the problems, we have hereby presented a waste water re-use unit in a catalytic cracking unit.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a wastewater recycling device in a catalytic cracking apparatus to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a waste water recycling device in a catalytic cracking device comprises a steam drum, wherein the output end of the steam drum is fixedly communicated with a continuous-discharge tank and a fixed-discharge tank, a connecting pipeline is fixedly connected between the continuous-discharge tank and the fixed-discharge tank, the output end of the fixed-discharge tank is fixedly communicated with a flue gas desulfurization absorption tower through a circulating pump, a waste water outlet of the flue gas desulfurization absorption tower is fixedly communicated with a particulate matter filtering device, the output end of the particulate matter filtering device is fixedly communicated with a water inlet of the flue gas desulfurization absorption tower through the circulating pump, the particulate matter filtering device comprises a rectangular box body, the upper end of the rectangular box body is fixedly provided with an upper cover which is convenient to disassemble, the upper surface of the upper cover which is convenient to disassemble is fixedly communicated with a water inlet pipe, the lower end of the right side wall of the rectangular box body is fixedly communicated with a water outlet pipe, the inner cavity of the rectangular box body is fixedly provided with a vibration self-cleaning filtering structure, and the upper end of the vibration self-cleaning filtering structure penetrates through the upper surface of the upper cover which is convenient to disassemble, the middle part of the upper surface of the upper cover convenient to disassemble is fixedly provided with a centrifugal stirring structure, and the centrifugal stirring structure extends into the vibration self-cleaning type filtering structure.

Preferably, vibrations automatically cleaning formula filtration includes the cylinder filter core of pegging graft in the rectangular box, even fixedly connected with spring between cylinder filter core bottom surface and the rectangular box inner chamber bottom surface, just, the strip through-hole has all vertically been seted up to the upper cover upper surface left and right sides of dismantling, it has the bar slider to slide in the bar through-hole and peg graft, and bar slider lower extreme fixed mounting on cylinder filter core upper edge, the even fixed micro-shock dynamo that is equipped with of bar slider upper surface, cylinder filter core inner wall slides and is equipped with the manual clean structure of inner wall.

Preferably, the manual clean structure of inner wall is including seting up the ring channel in cylinder filter core medial surface middle part, the slip joint has vertical scraper blade on the ring channel, vertical scraper blade lower extreme integrated into one piece has horizontal scraper blade, vertical scraper blade and horizontal scraper blade are all laminated on cylinder filter core inner wall, the fixed handle that is equipped with in vertical scraper blade inner wall upper end.

Preferably, the centrifugal stirring structure includes the motor of fixed assembly in order to dismantle upper cover upper surface middle part, the motor output runs through and just dismantles upper cover fixedly connected with bull stick, the bull stick outer wall has fixed ring through the fixed cover of bolt cup joint, the equal fixed stirring leaf that is equipped with of lateral wall about the fixed ring.

Preferably, the upper cover convenient to disassemble comprises a cover plate buckled at the upper end of the rectangular box body, connecting lug plates are integrally formed at the left edge and the right edge of the cover plate and the rectangular box body, and fixing bolts are fixedly connected between the upper connecting lug plate and the lower connecting lug plate.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the particulate matter filter equipment that the scheme adopted is used for carrying out the centrifugal filtration of tiny particulate matter to the waste water of flue gas desulfurization absorption tower, provides centrifugal power through centrifugal stirring structure, utilizes vibrations automatically cleaning formula filtration to filter waste water, vibrations automatically cleaning formula filtration can utilize vibrations to carry out self cleanness after filtering, reduces and blocks up the risk for it is up to standard to circulate the tiny particulate matter content in the aquatic of flue gas desulfurization absorption tower.

(2) The vibrations automatically cleaning formula filtration that the scheme adopted is through the miniature shock dynamo of connecting external power source as the power supply, and miniature shock dynamo's vibrations drive bar slider and cylinder filter core vibrations on the spring, and the flexible supplementary high frequency vibrations that carry out of cooperation spring can shake off the tiny particulate matter of cylinder filter core surface adhesion, and the adhesion of avoiding tiny particulate matter causes the jam.

(3) After the cylindrical filter element is used for a long time, the cover plate can be detached through the access, the longitudinal scraping plate and the transverse scraping plate can slide circumferentially through the handle, the inner wall of the cylindrical filter element is cleaned in a wall scraping mode, the blockage is manually removed, and the blockage is further prevented.

(4) The centrifugal stirring structure drives the stirring blades to rotate at a high speed through the motor, and the stirring blades drive the wastewater to rotate to form centrifugal force, so that the centrifugal filtration of the wastewater is realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a particulate filter apparatus of the present invention;

FIG. 3 is a schematic cross-sectional view of a particulate filter apparatus of the present invention;

fig. 4 is a schematic structural view of the inner wall manual cleaning structure of the utility model.

In the figure: 1-steam drum, 2-row tank, 3-row tank, 4-particle filtering device, 41-rectangular box, 42-conveniently detachable upper cover, 421-cover plate, 422-connecting ear plate, 423-fixing bolt, 43-water inlet pipe, 44-centrifugal stirring structure, 441-motor, 442-rotating rod, 443-fixing ring, 444-stirring blade, 45-water outlet pipe, 46-vibration self-cleaning filtering structure, 461-strip through hole, 462-micro vibration motor, 463-cylindrical filter element, 464-strip slide block, 465-spring, 466-inner wall manual cleaning structure, 4661-longitudinal scraper, 4662-annular groove, 4663-transverse scraper, 4664-handle and 5-flue gas desulfurization absorption tower.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a waste water recycling device in a catalytic cracking device comprises a steam drum 1, wherein the output end of the steam drum 1 is fixedly communicated with a continuous-discharge tank 2 and a fixed-discharge tank 3, a connecting pipeline is fixedly connected between the continuous-discharge tank 2 and the fixed-discharge tank 3, the output end of the fixed-discharge tank 3 is fixedly communicated with a flue gas desulfurization absorption tower 5 through a circulating pump, a waste water outlet of the flue gas desulfurization absorption tower 5 is fixedly communicated with a particulate matter filtering device 4, the output end of the particulate matter filtering device 4 is fixedly communicated with a water inlet of the flue gas desulfurization absorption tower 5 through the circulating pump, the particulate matter filtering device 4 comprises a rectangular box body 41, the upper end of the rectangular box body 41 is fixedly provided with a conveniently-detachable upper cover 42, the upper surface of the conveniently-detachable upper cover 42 is fixedly communicated with a water inlet pipe 43, the lower end of the right side wall of the rectangular box body 41 is fixedly communicated with a water outlet pipe 45, the inner cavity of the rectangular box body 41 is fixedly provided with a self-cleaning filtering structure 46, and the upper end of the self-cleaning filtering structure 46 penetrates through the upper surface of the conveniently-detachable upper cover 42, the upper cover 42 is removed, and the centrifugal stirring structure 44 is fixedly assembled at the middle part of the upper surface, and the centrifugal stirring structure 44 extends into the vibration self-cleaning type filtering structure 46.

The particulate matter filter equipment 4 of adoption is used for carrying out the centrifugal filtration of tiny particulate matter to the waste water of flue gas desulfurization absorption tower 5, provides centrifugal power through centrifugal stirring structure 44, utilizes vibrations self-cleaning formula filtration structure 46 to filter waste water, and vibrations self-cleaning formula filtration structure 46 can utilize vibrations to carry out self-cleaning after filtering, reduces and blocks up the risk for it is up to standard to circulate the tiny particulate matter content in the aquatic of flue gas desulfurization absorption tower 5.

Specifically, vibrations self-cleaning formula filtration 46 is including pegging graft the cylinder filter core 463 in rectangular box 41, even fixedly connected with spring 465 between cylinder filter core 463 bottom surface and the rectangular box 41 inner chamber bottom surface, bar through-hole 461 has all vertically been seted up to both sides about just dismantling upper cover 42 upper surface, it has bar slider 464 to slide in the bar through-hole 461 and peg graft, and bar slider 464 lower extreme fixed mounting is on cylinder filter core 463 upper edge, the even fixed mounting of bar slider 464 upper surface has miniature vibrating motor 462, the interior wall of cylinder filter core 463 slides and is equipped with the manual clean structure 466 of inner wall.

The vibrations automatically cleaning formula filtration 46 of adoption is through connecting external power source's miniature shock dynamo 462 as the power supply, and miniature shock dynamo 462's vibrations drive bar slider 464 and cylindrical filter core 463 vibrations on spring 465, and the flexible supplementary high frequency vibrations that carry out of cooperation spring 465 can shake off the tiny particulate matter of cylindrical filter core 463 surface adhesion, and the adhesion of avoiding tiny particulate matter causes the jam.

Specifically, the inner wall manual cleaning structure 466 comprises an annular groove 4662 arranged in the middle of the inner side surface of the cylindrical filter element 463, a longitudinal scraping plate 4661 is slidably clamped on the annular groove 4662, a transverse scraping plate 4663 is integrally formed at the lower end of the longitudinal scraping plate 4661, the longitudinal scraping plate 4661 and the transverse scraping plate 4663 are both attached to the inner wall of the cylindrical filter element 463, and a handle 4664 is fixedly assembled at the upper end of the inner wall of the longitudinal scraping plate 4661; after the cylindrical filter element 463 is used for a long time, the inner wall of the cylindrical filter element 463 can be scraped and cleaned by detaching the cover plate 421 and sliding the longitudinal scraping plate 4661 and the transverse scraping plate 4663 on the circumference of the handle 4664, so that the blockage can be removed manually, and further the blockage can be prevented.

Specifically, the centrifugal stirring structure 44 includes a motor 441 fixedly mounted in the middle of the upper surface of the upper cover 42 for easy detachment, an output end of the motor 441 penetrates through the upper cover 42 for easy detachment and is fixedly connected with a rotating rod 442, the outer wall of the rotating rod 442 is fixedly sleeved with a fixing ring 443 through a bolt, and the left and right side walls of the fixing ring 443 are fixedly mounted with stirring blades 444; the centrifugal stirring structure 44 drives the stirring blade 444 to rotate at a high speed through the motor 441, and the stirring blade 444 drives the wastewater to rotate, so that centrifugal force is formed, and the centrifugal filtration of the wastewater is realized.

Specifically, just, dismantle upper cover 42 including the lock in apron 421 of rectangular box 41 upper end, apron 421 and the homogeneous integrated shaping of the left and right edge of rectangular box 41 have a connection otic placode 422, fixedly connected with fixing bolt 423 between the upper and lower connection otic placode 422, through fixing bolt 423's dismantlement, can be convenient the dismantlement of realization apron 421 and rectangular box 41.

The working principle is as follows: the particle filtering device 4 is used for centrifugally filtering fine particles in the wastewater of the flue gas desulfurization absorption tower 5, centrifugal power is provided through the centrifugal stirring structure 44, the vibration self-cleaning type filtering structure 46 is used for filtering the wastewater, the vibration self-cleaning type filtering structure 46 can clean the wastewater by using vibration after filtering, the blocking risk is reduced, and the content of the fine particles in the water circulating to the flue gas desulfurization absorption tower 5 reaches the standard.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A waste water recycling device in a catalytic cracking device comprises a steam drum (1), and is characterized in that: the output end of the steam drum (1) is fixedly communicated with a continuous discharge tank (2) and a fixed discharge tank (3), a connecting pipeline is fixedly connected between the continuous discharge tank (2) and the fixed discharge tank (3), the output end of the fixed discharge tank (3) is fixedly communicated with a flue gas desulfurization absorption tower (5) through a circulating pump, a waste water outlet of the flue gas desulfurization absorption tower (5) is fixedly communicated with a particulate matter filtering device (4), the output end of the particulate matter filtering device (4) is fixedly communicated with a water inlet of the flue gas desulfurization absorption tower (5) through the circulating pump, the particulate matter filtering device (4) comprises a rectangular box body (41), the upper end of the rectangular box body (41) is fixedly assembled with an upper cover (42) which is convenient to disassemble, the upper surface of the upper cover (42) which is convenient to disassemble is fixedly communicated with a water inlet pipe (43), and the lower end of the right side wall of the rectangular box body (41) is fixedly communicated with a water outlet pipe (45), the inner cavity of the rectangular box body (41) is fixedly provided with a vibration self-cleaning type filtering structure (46), the upper end of the vibration self-cleaning type filtering structure (46) penetrates through the upper surface of the upper cover (42) to be detached, the middle part of the upper surface of the upper cover (42) to be detached is fixedly provided with a centrifugal stirring structure (44), and the centrifugal stirring structure (44) extends into the vibration self-cleaning type filtering structure (46).

2. The apparatus according to claim 1, wherein the apparatus further comprises: vibrations automatically cleaning formula filtration (46) is including pegging graft cylinder filter core (463) in rectangle box (41), even fixedly connected with spring (465) between cylinder filter core (463) bottom surface and rectangle box (41) inner chamber bottom surface, just, dismantle upper cover (42) upper surface left and right sides and all vertically seted up bar through-hole (461), it has bar slider (464) to slide the grafting in bar through-hole (461), and bar slider (464) lower extreme fixed mounting on cylinder filter core (463) upper edge, bar slider (464) upper surface is even fixed being equipped with miniature vibrating motor (462), cylinder filter core (463) inner wall slides and is equipped with manual clean structure (466) of inner wall.

3. The apparatus according to claim 2, wherein the apparatus further comprises: the inner wall manual cleaning structure (466) comprises an annular groove (4662) formed in the middle of the inner side face of the cylindrical filter element (463), a longitudinal scraping plate (4661) is connected onto the annular groove (4662) in a sliding and clamping mode, a transverse scraping plate (4663) is integrally formed at the lower end of the longitudinal scraping plate (4661), the longitudinal scraping plate (4661) and the transverse scraping plate (4663) are attached to the inner wall of the cylindrical filter element (463), and a handle (4664) is fixedly assembled at the upper end of the inner wall of the longitudinal scraping plate (4661).

4. The apparatus according to claim 1, wherein the apparatus further comprises: the centrifugal stirring structure (44) comprises a motor (441) which is fixedly assembled at the middle part of the upper surface of the upper cover (42) and is convenient to disassemble, the output end of the motor (441) penetrates through the rotating rod (442) which is fixedly connected with the upper cover (42) and is convenient to disassemble, the outer wall of the rotating rod (442) is fixedly sleeved with a fixing ring (443) through a bolt, and the left side wall and the right side wall of the fixing ring (443) are fixedly assembled with stirring blades (444).

5. The apparatus according to claim 1, wherein the apparatus further comprises: just, dismantle upper cover (42) including buckling in apron (421) of rectangle box (41) upper end, the edge homogeneous body shaping in the left and right sides of apron (421) and rectangle box (41) has connecting ear plate (422), upper and lower fixedly connected with fixing bolt (423) between connecting ear plate (422).