CN218452007U

CN218452007U - Tail gas recovery unit is used in polypropylene production

Info

Publication number: CN218452007U
Application number: CN202222789890.1U
Authority: CN
Inventors: 张聪; 卢分配; 张保建
Original assignee: Shandong High End Chemical Research Institute Co ltd
Current assignee: Shandong High End Chemical Research Institute Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-02-07
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a tail gas recovery device for polypropylene production, which is provided with a tail gas purification mechanism to filter and purify tail gas, the purified tail gas is guided into a water tank gas filtering mechanism to absorb water-soluble substances, and then the tail gas is discharged into a condensation mechanism to be condensed and treated to recover water vapor therein; the filter bag formula filtration accessible pull baffle of tail gas purification mechanism is taken out from purifying box internal portion, takes out the filter plate that leaves the back active carbon material and exposes, is more convenient for clear up filter plate and filter bag.

Description

Tail gas recovery unit is used in polypropylene production

Technical Field

The utility model relates to a tail gas recovery device technical field specifically is a tail gas recovery device is used in polypropylene production.

Background

Can produce tail gas in polypropylene production and processing, tail gas smell is bad smell, and irritability is big, if not through handling, directly arrange into the atmosphere, cause serious pollution to the environment, current tail gas processing apparatus can carry out the separation to the great solid debris and the large granule solid matter of tail gas after the polypropylene production, but these materials can pile up in filter and filter bag department, cause filter and filter bag to block up, influence the filtration recovery of tail gas, therefore, it is very necessary to design the practicality and be more convenient for carry out a tail gas recovery unit for polypropylene production of clearance to filter plate and filter bag.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail gas recovery device is used in polypropylene production to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a tail gas recovery unit is used in polypropylene production, includes tail gas purification mechanism, tail gas purification mechanism right-hand member fixed assembly has condensation mechanism, tail gas purification mechanism and condensation mechanism lower extreme fixed assembly have the landing leg, fixed intercommunication has water tank air filtering mechanism between tail gas purification mechanism and the condensation mechanism bottom surface, tail gas purification mechanism is including purifying the box, purifying the fixed collection hopper that is equipped with of box inner chamber bottom surface, and the less end of collection hopper is down, the horizontal fixed filter plate that is equipped with of purifying the box inner chamber lower extreme, purifying the box upper surface fixed intercommunication has the intake pipe, purifying the box left surface upper end and having seted up rectangular window, the grafting has the baffle in the rectangular window, and the baffle outer wall is equipped with cyclic annular airtight circle, baffle right flank vertical fixation is equipped with and strains bag-type filtration.

According to the technical scheme, the filter bag type filtering structure comprises a rectangular plate which is vertically and fixedly assembled on the right side face of the baffle, the outer wall of the rectangular plate is tightly attached to the inner wall of the purifying box body, stepped through holes are uniformly formed in the upper surface of the rectangular plate, T-shaped heads are clamped in the stepped through holes, connecting pipes are screwed to the lower ends of the T-shaped heads, filter bags are fixedly assembled at the lower ends of the connecting pipes, rubber rings are fixedly adhered to the upper edges of the outer walls of the filter bags, and the upper surfaces of the rubber rings are attached to the bottom face of the rectangular plate.

According to the technical scheme, the right end of the rectangular plate is fixedly adhered with the trapezoidal rubber block, the right wall of the inner cavity of the purification box body is transversely provided with the trapezoidal groove corresponding to the trapezoidal rubber block, and the trapezoidal rubber block is inserted into the trapezoidal groove.

According to the technical scheme, condensation mechanism is including the condensation box of fixed mounting in tail gas purification mechanism right-hand member, the even fixed fan that is equipped with in condensation box inner chamber left surface, and leaves the clearance between fan left surface and the condensation box inner chamber left surface, the inlet port has evenly been seted up in condensation box back wall left side, condensation box inner chamber left side longitudinal fixation is equipped with the baffle, and evenly fixed intercommunication has the check valve on the baffle, the check valve is one-way switches on from a left side to the right side, the fixed intercommunication in condensation box right side upper end has the blast pipe, the fixed snakelike return bend that is equipped with in condensation box inner chamber right side, the fixed intercommunication of snakelike return bend right-hand member and blast pipe, the exhaust hole has evenly been seted up to snakelike return bend outer wall bottom surface, the return water hole has evenly been seted up.

According to the technical scheme, the water tank air filtering mechanism comprises a water tank, a water inlet hole is formed in the middle of the bottom surface of the water tank, a plug is screwed in the water inlet hole, an air inlet connecting pipe is fixedly communicated with the lower end of the left side surface of the water tank, an air outlet connecting pipe is fixedly communicated with the lower end of the right side surface of the water tank, the upper end of the air inlet connecting pipe is fixedly communicated with the middle of the bottom surface of the tail gas purification mechanism, and the upper end of the air outlet connecting pipe is fixedly communicated with the middle of the bottom surface of the condensation mechanism.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

the utility model filters and purifies the tail gas by arranging the tail gas purification mechanism, leads the purified tail gas into the water tank gas filtering mechanism to absorb water-soluble substances, and then discharges the tail gas into the condensation mechanism to be condensed and recovers water vapor therein; the mode of the filter bag formula filtration accessible pull baffle of tail gas purification mechanism is taken from purifying the inside extraction of box, takes out the filter plate that comes the back active carbon material from exposing, is more convenient for clear up filter plate and filter bag.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic structural view of the tail gas purifying mechanism of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic structural diagram of the condensing mechanism of the present invention;

fig. 5 is a schematic structural view of the air filtering mechanism of the water tank of the present invention.

In the figure: 1-tail gas purification mechanism, 11-purification box body, 12-aggregate bin, 13-filter plate, 14-rectangular window, 15-baffle, 16-filter bag type filter structure, 161-trapezoidal groove, 162-rectangular plate, 163-trapezoidal rubber block, 164-ladder through hole, 165-T-shaped head, 166-connecting pipe, 167-filter bag, 168-rubber ring, 17-air inlet pipe, 2-condensation mechanism, 21-condensation box body, 22-air inlet hole, 23-fan, 24-exhaust pipe, 25-one-way valve, 26-snake bend, 27-exhaust hole, 28-water return hole, 3-support leg, 4-water tank air filtering mechanism, 41-water tank, 42-water inlet hole, 43-plug, 44-air inlet connecting pipe and 45-exhaust connecting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a tail gas recovery unit is used in polypropylene production, including tail

gas purification mechanism

1, 1 right-hand member of tail gas purification mechanism is fixed to be equipped with condensing mechanism 2, tail

gas purification mechanism

1 and 2 lower extreme fixed leg 3 of condensing mechanism are equipped with, fixed intercommunication has water tank air filtering mechanism 4 between 2 bottom surfaces of tail gas purification mechanism 1 and condensing mechanism, tail gas purification mechanism 1 is including purifying

box

11, 11 inner chamber bottom surfaces of purifying box are fixed to be equipped with collecting hopper 12, and the less end of collecting hopper 12 is down, 11 inner chamber lower extremes of purifying box are horizontal fixed to be equipped with

filter plate

13, 11 last fixed surface intercommunication of purifying box has intake pipe 17, rectangular window 14 has been seted up to 11 left surface upper ends of purifying box, rectangular window 14 interpolation has

baffle

15, and 15 outer walls of baffle are equipped with cyclic annular seal circle, 15 right flank vertical fixation of baffle is equipped with and strains bag filter structure 16.

The tail gas is filtered and purified by the tail gas purification mechanism 1, the purified tail gas is guided into the water tank gas filtering mechanism 4 to be absorbed by water-soluble substances, and then the tail gas is discharged into the condensation mechanism 2 to be condensed to recover water vapor therein; the filter bag type filtering structure 16 in the tail gas purification mechanism 1 can be drawn from the interior of the purification box body 11 in a manner of drawing the baffle 15, and the filter plate 13 made of activated carbon is exposed after the drawing, so that the filter plate 13 and the filter bag 167 can be cleaned more conveniently.

Specifically, the filter bag type filtering structure 16 comprises a rectangular plate 162 vertically and fixedly assembled on the right side surface of the baffle 15, the outer wall of the rectangular plate 162 is tightly attached to the inner wall of the purification box body 11, stepped through holes 164 are uniformly formed in the upper surface of the rectangular plate 162, T-shaped heads 165 are clamped in the stepped through holes 164, connecting pipes 166 are screwed at the lower ends of the T-shaped heads 165, filter bags 167 are fixedly assembled at the lower ends of the connecting pipes 166, rubber rings 168 are fixedly adhered to the upper edges of the outer walls of the filter bags 167, and the upper surfaces of the rubber rings 168 are attached to the bottom surface of the rectangular plate 162; rectangular plate 162 right-hand member is pasted and is fixed with trapezoidal rubber block 163, purifies box 11 inner chamber right side wall and has transversely seted up trapezoidal recess 161 corresponding to trapezoidal rubber block 163, and trapezoidal rubber block 163 pegs graft in trapezoidal recess 161.

Under the connecting pipe 166 of filter bag 167 upper end can just T shape head 165 lower extreme spiral shell, convenient to detach and change, airtight effect is guaranteed to rubber circle 168 laminating rectangular plate 162 bottom surface, and trapezoidal block rubber 163 is pegged graft in trapezoidal recess 161, guarantees the steadiness that rectangular plate 162 right-hand member and purification box 11 inner chamber right side wall are connected, can take trapezoidal block rubber 163 out from trapezoidal recess 161 after exerting external force.

Particularly, condensation mechanism 2 is including the condenser box 21 of fixed mounting in the 1 right-hand member of tail gas purification mechanism, the even fixed fan 23 that is equipped with in condenser box 21 inner chamber left surface, and leave the clearance between fan 23 left surface and the condenser box 21 inner chamber left surface, inlet port 22 has evenly been seted up on condenser box 21 back wall left side, the vertical fixed baffle that is equipped with in condenser box 21 inner chamber left side, and even fixed intercommunication has check valve 25 on the baffle, check valve 25 switches on to the right side one-way from a left side, the fixed intercommunication of condenser box 21 right side upper end has blast pipe 24, the fixed snakelike return bend 26 that is equipped with in condenser box 21 inner chamber right side, the fixed intercommunication of snakelike return bend 26 right-hand member and blast pipe 24, exhaust hole 27 has evenly been seted up to snakelike return bend 26 outer wall bottom surface, return water hole 28 has evenly been seted up.

The waste gas after the purification gets into condensation box 21, and fan 23 provides wind-force cooling for snakelike return bend 26, and waste gas gets into snakelike return bend 26 from exhaust hole 27, and the steam that contains and the contact condensation of snakelike return bend 26 inner wall in the waste gas circulation process, rivers assemble and discharge from return water hole 28, flow back to water tank 41 in, and air and waste gas are discharged from blast pipe 24, are convenient for recycle.

Particularly, the water tank air filtering mechanism 4 includes water tank 41, and water tank 41 bottom surface middle part has been seted up inlet opening 42, and the spiro union has shutoff 43 in the inlet opening 42, and water tank 41 left flank lower end fixed intercommunication has inlet connection pipe 44, and water tank 41 right flank lower end fixed intercommunication has exhaust connection pipe 45, inlet connection pipe 44 upper end and 1 bottom surface middle part fixed intercommunication in tail gas purification mechanism, and exhaust connection pipe 45 upper end and 2 bottom surface middle parts fixed intercommunication in condensation mechanism.

The working principle is as follows:

the tail gas purification mechanism 1 is arranged to filter and purify the tail gas, the purified tail gas is guided into the water tank gas filtering mechanism 4 to absorb water-soluble substances, and then the tail gas is discharged into the condensation mechanism 2 to be condensed and treated to recover water vapor therein; the filter bag type filtering structure 16 in the tail gas purification mechanism 1 can be drawn from the interior of the purification box body 11 in a manner of drawing the baffle 15, and the filter plate 13 made of activated carbon is exposed after the drawing, so that the filter plate 13 and the filter bag 167 can be cleaned more conveniently.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tail gas recovery unit is used in polypropylene production which characterized in that: including tail gas purification mechanism (1), tail gas purification mechanism (1) right-hand member fixed assembly has condensation mechanism (2), tail gas purification mechanism (1) and condensation mechanism (2) lower extreme fixed assembly have landing leg (3), fixed intercommunication has water tank air filter mechanism (4) between tail gas purification mechanism (1) and condensation mechanism (2) bottom surface, tail gas purification mechanism (1) is including purifying box (11), purifying box (11) inner chamber bottom surface fixed assembly has collecting hopper (12), and collecting hopper (12) less end down, purifying box (11) inner chamber lower extreme horizontal fixed assembly has filter plate (13), purifying box (11) upper surface fixed intercommunication has intake pipe (17), rectangular window (14) have been seted up to purifying box (11) left surface upper end, rectangular window (14) interpolation has baffle (15), and baffle (15) outer wall is equipped with cyclic annular closed loop, baffle (15) right flank vertical fixation is equipped with and strains bag formula filtration (16).

2. The tail gas recovery device for polypropylene production according to claim 1, wherein: filter bag formula filtration (16) including perpendicular fixed mounting in rectangular plate (162) of baffle (15) right flank, and rectangular plate (162) outer wall and purification box (11) inner wall closely laminate, ladder through-hole (164) have evenly been seted up to rectangular plate (162) upper surface, the joint has T shape head (165) in ladder through-hole (164), T shape head (165) lower extreme spiro union has connecting pipe (166), connecting pipe (166) lower extreme fixed mounting has filter bag (167), filter bag (167) outer wall top edge is pasted and is fixed with rubber circle (168), and rubber circle (168) upper surface and rectangular plate (162) bottom surface laminate.

3. The tail gas recovery device for polypropylene production according to claim 2, wherein: rectangular plate (162) right-hand member is pasted and is fixed with trapezoidal rubber piece (163), purification box (11) inner chamber right wall is transversely seted up trapezoidal recess (161) corresponding trapezoidal rubber piece (163), trapezoidal rubber piece (163) are pegged graft in trapezoidal recess (161).

4. The tail gas recovery device for polypropylene production according to claim 1, wherein: condensation mechanism (2) are including fixed mounting in condensation box (21) of tail gas purification mechanism (1) right-hand member, the even fixed fan (23) that is equipped with of condensation box (21) inner chamber left surface, and leaves the clearance between fan (23) left surface and condensation box (21) inner chamber left surface, inlet port (22) have evenly been seted up on condensation box (21) back wall left side, the vertical fixed baffle that is equipped with in condensation box (21) inner chamber left side, and even fixed intercommunication has check valve (25) on the baffle, check valve (25) one-way switch on from a left side to the right side, the fixed intercommunication of condensation box (21) right surface upper end has blast pipe (24), the fixed snakelike return bend (26) of being equipped with in condensation box (21) inner chamber right side, snakelike return bend (26) right-hand member and the fixed intercommunication of blast pipe (24), exhaust hole (27) have evenly been seted up to snakelike return bend (26) outer wall bottom surface, return water hole (28) have evenly been seted up to snakelike return bend (26) outer wall.

5. The tail gas recovery device for polypropylene production according to claim 1, wherein: the water tank air filtering mechanism (4) comprises a water tank (41), a water inlet hole (42) is formed in the middle of the bottom surface of the water tank (41), a plugging part (43) is screwed in the water inlet hole (42), an air inlet connecting pipe (44) is fixedly communicated with the lower end of the left side surface of the water tank (41), an air exhaust connecting pipe (45) is fixedly communicated with the lower end of the right side surface of the water tank (41), the upper end of the air inlet connecting pipe (44) is fixedly communicated with the middle of the bottom surface of the tail gas purification mechanism (1), and the upper end of the air exhaust connecting pipe (45) is fixedly communicated with the middle of the bottom surface of the condensation mechanism (2).