CN219615532U

CN219615532U - PTA device capable of saving alkali consumption

Info

Publication number: CN219615532U
Application number: CN202320279738.0U
Authority: CN
Inventors: 彭俊惆
Original assignee: Zhangjiagang Furui Heavy Equipment Co ltd
Current assignee: Zhangjiagang Furui Heavy Equipment Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-09-01
Anticipated expiration: 2033-02-22

Abstract

The utility model discloses a PTA device for saving alkali consumption, which relates to the field of PTA devices and comprises a motor, wherein a rotating shaft is fixed at the top end of the motor, a belt pulley is fixed at the lower end of the rotating shaft, a stirring blade is arranged on the rotating shaft, a dissolving chamber is arranged on the outer side of the stirring blade, a reaction chamber is arranged on the upper side of the dissolving chamber, a filter frame is arranged in the reaction chamber, a liquid storage tank is arranged on the upper side of the reaction chamber, a liquid inlet pipe is arranged on one side of the liquid storage tank, and a ball float valve is fixed at one end of the liquid inlet pipe. The utility model puts PTA slag scale into a feed hopper through setting, a reaction chamber, a filter frame, stirring blades and a dissolution chamber, opens a liquid inlet pipe valve and a motor, drives a screw rod to control feeding, and ensures that the alkali solution of a float valve in a liquid storage tank enters the dissolution chamber, the liquid dissolved with PTA flows into the dissolution chamber, fully reacts through stirring of the stirring blades, and the reacted liquid flows out through a piston port for further acid precipitation recovery.

Description

PTA device capable of saving alkali consumption

Technical Field

The utility model relates to the field, in particular to a PTA device capable of saving alkali consumption.

Background

PTA is terephthalic acid, is white crystal or powder at normal temperature, is low in toxicity, inflammable, soluble in alkali solution, slightly soluble in hot ethanol, insoluble in water, diethyl ether, glacial acetic acid and chloroform, and is widely used in various aspects of people's life and national economy, and PTA production equipment comprises an air compressor, an oxidation reactor, a post-stage reactor, a CTA crystallizer, a vacuum filter, a CTA dryer, a distillation tower, a hydrogenation reactor, a purification crystallizer, a pressure filter, a vacuum filter and a PTA dryer.

PTA is the lower end product of petroleum, the petroleum produces light gasoline (alias naphtha) through a certain technological process, MX (mixed xylene) is extracted from naphtha, and PX (para-xylene) is extracted. PTA takes PX as a raw material, acetic acid as a solvent, crude paraxylene is generated through liquid phase oxidation of an oxidation reactor and a post-stage reactor under the action of a catalyst, and refined terephthalic acid is obtained through hydrofining, crystallization, separation and drying.

In the production process, PTA waste residues are generated, the waste residues can scale in equipment and pipelines, the PTA content in the cleaned PTA waste residues is large, the recovery value is large, the waste residues are usually recovered by dissolving the waste residues by using an alkali solution and then carrying out acid precipitation recovery, but the consumption of the alkali solution and the consumption of the waste residues are not paid attention to when the waste residues are used, the cost is increased, the alkali solution is not well treated in the later stage, and the damage to the environment is large.

Disclosure of Invention

Accordingly, the present utility model is directed to a PTA device capable of saving alkali consumption, so as to solve the above-mentioned technical problems in the related art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a practice thrift PTA device of alkali consumption, includes the motor, the top of motor is fixed with the pivot, the lower extreme of pivot is fixed with the belt pulley, the other end of belt pulley is fixed with the hob, the outside of hob is provided with the inlet pipe, the lower extreme of inlet pipe is provided with the feeder hopper, the upper end of inlet pipe is provided with the feed inlet, be provided with the stirring leaf in the pivot, the outside of stirring leaf is provided with the dissolution chamber, the upside of dissolution chamber is provided with the reaction chamber, the inside filter frame that is provided with of reaction chamber, the upside of reaction chamber is provided with the liquid storage pot, one side of liquid storage pot is provided with the feed liquor pipe, the one end of feed liquor pipe is fixed with the ball cock assembly, the bottom of liquid storage pot is provided with the drain pipe.

Through adopting above-mentioned technical scheme, when using the device, put into the feeder hopper with PTA sediment dirt, the filter frame in the spiral arm control PTA sediment dirt entering reaction chamber is driven to the motor, the ball cock valve control feed liquor pipe valve door is closed, thereby control right amount alkali solution and get into filter frame and sediment dirt and react, the liquid flow in that dissolves the PTA dissolves the room reaction, the liquid after the reaction flows out through the piston mouth, carry out the next sour out recovery, this kind of mode can be in PTA sediment dirt and alkali solution according to proportion, can control the quantity of alkali solution, prevent that the alkali solution from having unnecessary consumption.

The utility model is further arranged that a clamping block is fixed at the bottom end of the filter frame, a clamping groove is fixed at the top end of the rotating shaft, and the clamping block is matched with the clamping groove.

Through adopting above-mentioned technical scheme, fixture block and draw-in groove card and time, the motor drives the pivot and rotates, and the pivot passes through fixture block and draw-in groove drive filter frame rotation to make the sediment dirt in the filter frame flow, thereby more abundant and alkali solution reaction.

The utility model is further characterized in that a revolving door is arranged on one side of the reaction chamber, and a handle is arranged on the outer side of the revolving door.

Through adopting above-mentioned technical scheme, other slag scales that can not react can stay in the filter frame, when needs clearance filter frame, can loosen the buckle, can open the revolving door through pulling the handle and take out the filter frame and clear up convenient and fast.

The utility model is further characterized in that a buckle is fixed at the joint of the revolving door and the reaction chamber, a hook of the buckle is fixedly connected with the reaction chamber, and a hanging ring of the buckle is fixedly connected with the revolving door.

Through adopting above-mentioned technical scheme, when carrying out the reaction in the reaction chamber, the buckle hangs tightly, seals the reaction chamber, prevents liquid or sediment dirt outflow reaction chamber, when needs clear up the filter frame, unclamp the buckle, can open the revolving door and clear up the filter frame.

The utility model is further arranged that the float valve controls the opening and closing of the liquid discharge pipe valve through the relay.

By adopting the technical scheme, when the alkali solution feeding amount of the float valve reaches twice that of the slag scale, the liquid discharge pipe can be controlled to open the valve, and the alkali solution starts to enter the reaction chamber to react with the slag scale, so that the feeding amount is controlled.

The utility model is further arranged that the shape of the liquid discharge pipe is funnel-shaped, and the bottom end of the liquid discharge pipe is positioned in the opening of the filtering frame.

By adopting the technical scheme, the pressure of the alkali solution flowing out can be increased by the shape of the big-end-up liquid discharge pipe, so that the reaction of the alkali solution and the slag scale in the filter frame is quicker and more sufficient, and the reaction rate is improved.

The utility model is further characterized in that a supporting seat is fixed on the bottom surface of the dissolution chamber, a piston is arranged at the bottom end of the dissolution chamber, and the piston is in threaded connection with the dissolution chamber.

By adopting the technical scheme, the mixed solution after full reaction can flow out through the piston port, so that the acid precipitation recovery in the next step is facilitated.

In summary, the utility model has the following advantages:

the utility model sets the feed pipe, screw rod, liquid storage tank, float valve, liquid discharge pipe, reaction chamber, filtering frame, stirring blade and dissolution chamber, when using the device, the PTA slag scale is put into the feed hopper, the liquid feed pipe valve and motor are opened, the motor drives the screw rod to control the feed, when the alkali solution in the liquid storage tank reaches twice of the feed, the float valve controls the liquid feed pipe valve to close the liquid discharge pipe valve to open, the PTA slag scale enters the filtering frame in the reaction chamber, the alkali solution in the liquid storage tank enters the filtering frame through the liquid discharge pipe to react with the slag scale, the liquid dissolved with PTA flows into the dissolution chamber, the stirring blade is fully stirred to react, the reacted liquid flows out through the piston to be recovered by next acid precipitation, the mode can proportionally feed PTA slag scale and alkali solution, the dosage of the alkali solution can be controlled, and unnecessary consumption of the alkali solution is prevented.

Drawings

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

FIG. 2 is a perspective view of a filter frame of the present utility model;

FIG. 3 is a perspective view of the tapping tube according to the present utility model.

In the figure: 1. a motor; 2. a belt pulley; 3. a screw rod; 4. a feed pipe; 41. a feed inlet; 42. a feed hopper; 5. a rotating shaft; 51. a clamping groove; 6. stirring the leaves; 7. a filter frame; 71. a clamping block; 8. a reaction chamber; 81. a revolving door; 82. a handle; 83. a buckle; 9. a liquid storage tank; 91. a liquid inlet pipe; 92. a float valve; 93. a liquid discharge tube; 10. a dissolution chamber; 11. a piston; 12. and a supporting seat.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

The utility model provides a practice thrift PTA device of alkali consumption, as shown in fig. 1-3, including motor 1, motor 1's top is fixed with pivot 5, pivot 5's lower extreme is fixed with belt pulley 2, belt pulley 2's the other end is fixed with hob 3, hob 3's outside is provided with inlet pipe 4, inlet pipe 4's lower extreme is provided with feeder hopper 42, inlet pipe 4's upper end is provided with feed inlet 41, motor 1 drives belt pulley 2 and rotates, thereby drive hob 3 and rotate, realize controlling the feeding, be provided with stirring leaf 6 on pivot 5, stirring leaf 6's outside is provided with dissolving chamber 10, the alkali solution that has dissolved PTA is in dissolving chamber 10, further dissolve, make the reaction more abundant, dissolving chamber 10's upside is provided with reaction chamber 8, reaction chamber 8 inside is provided with filter frame 7, reaction chamber 8's upside is provided with reservoir 9, one side of reservoir 9 is provided with feed pipe 91, feed pipe 91's one end is fixed with ball valve 92, reservoir 9's bottom is provided with feed pipe 93, when the alkali solution feed amount reaches the twice of sediment scale, ball valve 92 can control the feed valve 93, it gets into reaction chamber 8 to begin to carry out the reaction volume control the sediment.

Referring to fig. 1, in the above embodiment, the bottom end of the filter frame 7 is fixed with the clamping block 71, the top end of the rotating shaft 5 is fixed with the clamping groove 51, and when the clamping block 71 and the clamping groove 51 are engaged with each other, the motor 1 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the filter frame 7 to rotate through the clamping block 71 and the clamping groove 51, so that the scale in the filter frame 7 flows, and thus reacts with the alkali solution more fully.

Referring to fig. 1, in the above embodiment, a revolving door 81 is provided on one side of a reaction chamber 8, a handle 82 is provided on the outer side of the revolving door 81, other slag and dirt that cannot react can remain in a filter frame 7, and when the filter frame 7 needs to be cleaned, a buckle 83 can be loosened, and the revolving door 81 can be opened by pulling the handle 82 to take out the filter frame 7 for cleaning, which is convenient and fast.

Referring to fig. 1, in the above embodiment, a buckle 83 is fixed at the connection between the rotary door 81 and the reaction chamber 8, a hook of the buckle 83 is fixedly connected with the reaction chamber 8, a hanging ring of the buckle 83 is fixedly connected with the rotary door 81, when the reaction is performed in the reaction chamber 8, the buckle 83 is hung tightly to seal the reaction chamber 8, so that liquid or slag dirt is prevented from flowing out of the reaction chamber 8, and when the filter frame 7 needs to be cleaned, the buckle 83 is loosened, and the rotary door 81 can be opened to clean the filter frame 7.

Referring to fig. 1, in the above embodiment, the float valve 92 controls the opening and closing of the valve of the liquid discharge pipe 93 through the relay, and when the alkali solution feeding amount reaches twice that of the slag scale, the float valve 92 can control the liquid discharge pipe 93 to open the valve, and the alkali solution starts to enter the reaction chamber 8 to react with the slag scale, so as to realize the control of the feeding amount.

Referring to fig. 3, in the above embodiment, the liquid discharge tube 93 is funnel-shaped, and the bottom end of the liquid discharge tube 93 is located inside the opening of the filter frame 7, so that the pressure of the alkali solution flowing out of the liquid discharge tube 93 can be increased by the shape of big top and small bottom, so that the alkali solution reacts with the slag scale in the filter frame 7 more quickly and sufficiently, and the reaction rate is improved.

Referring to fig. 1, in the above embodiment, a supporting seat 12 is fixed on the bottom surface of the dissolution chamber 10, a piston 11 is disposed at the bottom end of the dissolution chamber 10, the piston 11 is in threaded connection with the dissolution chamber 10, and the fully reacted mixed solution can flow out through the opening of the piston 11, so as to facilitate the recovery of the next acid precipitation.

The working principle of the utility model is as follows: knowing that PTA and sodium hydroxide solution's reaction ratio is 1:2, when the device is used, put PTA sediment dirt into feeder hopper 42, open feed liquor pipe 91 valve and motor 1, motor 1 drives belt pulley 2 and rotates, belt pulley 2 drives hob 3 control feed quantity, begin to feed into reaction chamber 8, PTA sediment dirt gets into the filter frame 7 in the reaction chamber 8, when feed liquor pipe 91 valve is opened, the alkali solution begins to get into liquid storage pot 9, when the alkali solution in liquid storage pot 9 reaches the twice of feeding, float valve 92 control feed liquor pipe 91 valve is closed, simultaneously control drain pipe 93 valve and open, alkali solution in liquid storage pot 9 passes through drain pipe 93 and gets into filter frame 7, motor 1 drives pivot 5 and rotates, thereby drive filter frame 7 and rotate, the PTA sediment dirt in the filter frame 7 can be evenly dissolved to the alkali solution, the liquid flow into dissolving chamber 10, after the stirring of stirring leaf 6 fully reacts, open piston 11, the liquid that is dissolved has flows out, carry out next acid precipitation recovery, the sediment can remain in filter frame 7, when the alkali solution in liquid storage pot 9 reaches the twice of feeding, float valve 92 control feed liquor pipe 91 valve is closed, simultaneously, the alkali solution is separated to the filter frame is cleaned up by pulling clamp 83, the handle 81 is opened, the filter frame is opened, the consumption is removed by the filter frame is separated to the operation is carried out to the filter frame is 81, the filter frame is cleaned up by the filter frame is separated by the filter frame is carried out, and the filter frame is opened.

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. The utility model provides a practice thrift PTA device that alkali consumed, includes motor (1), its characterized in that: the utility model discloses a liquid storage device, including motor (1), filter frame (7), filter frame (8), filter frame (7), filter frame (8) are provided with liquid storage tank (9), filter frame (9) are provided with feed pipe (4), feed pipe (4) are provided with feeder hopper (42), feed pipe (4) are provided with feed inlet (41) in the upper end, be provided with stirring leaf (6) in pivot (5), stirring leaf (6) are provided with dissolving room (10) in the outside, dissolving room (10) are provided with reaction chamber (8), the upside of reaction chamber (8) is provided with liquid storage tank (9), one side of liquid storage tank (9) is provided with feed pipe (91), the one end of feed pipe (91) is fixed with ball valve (92), the bottom of liquid storage tank (9) is provided with liquid storage pipe (93).

2. The alkali-consumption-saving PTA device according to claim 1, wherein: the bottom end of the filter frame (7) is fixed with a clamping block (71), the top end of the rotating shaft (5) is fixed with a clamping groove (51), and the clamping block (71) is matched with the clamping groove (51).

3. The alkali-consumption-saving PTA device according to claim 1, wherein: a revolving door (81) is arranged on one side of the reaction chamber (8), and a handle (82) is arranged on the outer side of the revolving door (81).

4. The alkali-consumption-saving PTA device according to claim 3, wherein: the connecting part of the revolving door (81) and the reaction chamber (8) is fixedly provided with a buckle (83), a hook of the buckle (83) is fixedly connected with the reaction chamber (8), and a hanging ring of the buckle (83) is fixedly connected with the revolving door (81).

5. The alkali-consumption-saving PTA device according to claim 1, wherein: the float valve (92) controls the opening and closing of the valve of the liquid discharge pipe (93) through a relay.

6. The alkali-consumption-saving PTA device according to claim 1, wherein: the shape of the liquid discharge pipe (93) is in a funnel shape, and the bottom end of the liquid discharge pipe (93) is positioned in the opening of the filter frame (7).

7. The alkali-consumption-saving PTA device according to claim 1, wherein: the bottom surface of dissolving room (10) is fixed with supporting seat (12), the bottom of dissolving room (10) is provided with piston (11), piston (11) and dissolving room (10) threaded connection.