CN214810923U

CN214810923U - Single-cycle ethoxylation reactor

Info

Publication number: CN214810923U
Application number: CN202121197291.XU
Authority: CN
Inventors: 胡斌
Original assignee: Fushun Xiu Lin Chemical Co ltd
Current assignee: Fushun Xiu Lin Chemical Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-23
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a single cycle ethoxylation reactor, including the reactor body, reactor body internally mounted has the spiral spray tube, first nozzle has been seted up to spiral spray tube inner wall surface, the flow distribution disc is installed to the inside top of reactor body, the vertical straight spray tube of installing in flow distribution disc bottom, the second nozzle has been seted up to the direct spray tube outside surface, first supporting seat is installed to reactor body one side, first jar of body is installed at first supporting seat top. The utility model discloses in, make ethylene oxide and reactant fully contact through reation kettle body spiral pipe and ethylene oxide to the sprinkling irrigation pipe, temperature during outer heat exchanger regulation and control production, product quality obviously promotes, and product extra small molecular weight is low with super large molecular weight content, and the color and luster is good, and molecular weight distributes narrowly, and free ethylene oxide content is less than 0.2 PPm.

Description

Single-cycle ethoxylation reactor

Technical Field

The utility model relates to a reactor technical field especially relates to a single cycle ethoxylation ware.

Background

With the steady development of the ethylene oxide downstream derivative industry in China, particularly the emergence of relevant national policies, the ethylene oxide industry in China is confronted with good development opportunities. At present, the downstream products of ethylene oxide in China are complete in variety, the performance is continuously improved, the yield is at the first of the world, the annual growth rate is over 20 percent, the application of the polycarboxylate superplasticizer monomer in concrete meets the requirements of the infrastructure of railways, expressways, airports, coal mines, municipal engineering, nuclear power stations, dams, bridges and the like and the high-speed growth of real estate in China in recent years, and medical polyethylene glycol and AEO have high use ratio in the fields of medicine and daily use chemicals.

The prior art has the following problems:

the ethoxylation reaction is an addition reaction between an initiator containing active hydrogen and ethylene oxide, the amount of the ethylene oxide polymerized and added on the reactant is different due to different contact amounts of the reactant and the ethylene oxide in the reaction process, the molecular weight of the obtained product is an interval distribution condition, the later use is inconvenient, and how to obtain a more concentrated molecular weight product is an important condition for determining the excellent use of the product.

We have therefore proposed a single-cycle ethoxylation reactor which addresses the above disadvantages.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, the ethoxylation is added the reaction by the initiator that contains active hydrogen and ethylene oxide, because the reactant makes the polymerization different with ethylene oxide contact volume the ethylene oxide quantity on the reactant different in the reaction process, the product molecular weight that obtains is an interval distribution condition, the use in the later stage of being not convenient for, how to obtain more concentrated molecular weight product is the important condition that decides the product and use the excellence, and a monocycle ethoxylation reactor that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a single-cycle ethoxylation reactor comprises a reactor body, wherein a spiral spray pipe is arranged in the reactor body, a first nozzle is arranged on the surface of the inner wall of the spiral spray pipe, a splitter plate is arranged above the inside of the reactor body, a straight spray pipe is vertically arranged at the bottom end of the splitter plate, a second nozzle is arranged on the surface of the outer side of the straight spray pipe, a first supporting seat is arranged on one side of the reactor body, a first tank body is arranged at the top of the first supporting seat, the inside of the first tank body is connected with a first circulating pump through a pipeline, one end of the first circulating pump is connected with a pipeline heat exchanger, one end of the heat exchanger penetrates through the surface of the reactor body through a pipeline and is in through connection with the spiral spray pipe, a second supporting seat is arranged on the other side of the reactor body, a second tank body is arranged at the top of the second supporting seat, the inside of the second tank body is connected with a second circulating pump through a pipeline, one end of the second circulating pump penetrates through the surface of the reactor body through a pipeline and is in through connection with the flow dividing pipe.

Preferably, the first jar of body and the surface mounting of the second jar of body have the observation window, the observation window surface is provided with the scale mark, the pan feeding mouth has been seted up to the first jar of body and the surface of the second jar of body top, driving motor is installed to pan feeding mouth one side, the internal portion of the first jar of body and the second jar has the main shaft, the stirring leaf is installed to the main shaft bottom, the main shaft top is connected with the driving motor output.

Preferably, the initiator is stored in the first tank, and the ethylene oxide is stored in the second tank.

Preferably, the straight spray pipes are provided with a plurality of straight spray pipes, and the straight spray pipes are arranged at the bottom end of the flow distribution plate at equal angles.

Preferably, the bottom ends of the reactor body, the first supporting column and the second supporting column are all provided with supporting legs.

Preferably, reactor body surface mounting has control panel, and control panel one end passes through power cord and first circulating pump, second circulating pump and driving motor electric connection.

Compared with the prior art, the utility model has the advantages that;

1. the utility model discloses, through setting up the spiral spray tube, first nozzle, the cooperation of straight spray tube and second nozzle is used, be convenient for make starter and ethylene oxide that get into reactor body inside, fully contact, in operation, the starter is carried the pipe layer of heat exchanger and is exchanged heat with the coolant liquid by first circulating pump from the first jar of internal, then get into the spiral spray tube of reactor body inside, later spout into reactor body inside through first nozzle, ethylene oxide is carried the flow distribution dish in from the second jar of internal by second circulating pump, then get into the direct injection pipe, later spout into reactor body inside through the second nozzle, through the mode of spouting of first nozzle and second nozzle, be convenient for make ethylene oxide and starter contact more abundant, obtain molecular weight distribution evenly, high quality product, this mode easy operation, as long as add corresponding starter and ethylene oxide according to the normal proportion of molecular weight that the production required design, the ethylene oxide is fully contacted with reactants through the spiral pipe of the reaction kettle body and the ethylene oxide pair sprinkling irrigation pipe, the temperature during production is regulated and controlled by the outer heat exchanger, the product quality is obviously improved, the product has low content of ultra-small molecular weight and ultra-large molecular weight, good color and luster and narrower molecular weight distribution, the content of free ethylene oxide is less than 0.2PPm, and the later-stage product can be conveniently used.

2. The utility model discloses, there is the observation window at the surface mounting of the first jar of body and the second jar of body, can observe the state of the internal portion material of the first jar of body and second jar through the observation window, secondly be provided with the scale mark on the first jar of body and the surface of the second jar of body, can be accurate pour into the raw materials to the internal portion of the first jar of body and second jar through setting up the scale mark, the staff's of being convenient for operation, at last through setting up driving motor, the cooperation of main shaft and stirring leaf is used, be convenient for stir the internal portion material of the first jar of body and second jar, avoid appearing the phenomenon of layering.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a single-cycle ethoxylation reactor provided by the present invention;

FIG. 2 is a schematic view of a single-cycle ethoxylation reactor heat exchanger according to the present invention;

FIG. 3 is a schematic view of a spiral nozzle of a single-cycle ethoxylation reactor according to the present invention;

FIG. 4 is a schematic view of a single-cycle ethoxylation reactor splitter plate according to the present invention;

fig. 5 is a schematic view of a stirring blade of the single-cycle ethoxylation reactor provided by the utility model.

Illustration of the drawings:

1. a reactor body; 2. a first support base; 3. a first tank; 4. an observation window; 5. scale lines; 6. a feeding port; 7. a first circulation pump; 8. a heat exchanger; 9. a control panel; 10. a second circulation pump; 11. a second tank; 12. a support leg; 13. a second support seat; 14. a spiral nozzle; 15. a diverter tray; 16. a first nozzle; 17. a straight nozzle; 18. a second nozzle; 19. stirring blades; 20. a main shaft; 21. the motor is driven.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, a single-circulation ethoxylation reactor comprises a reactor body 1, and is characterized in that a spiral spray pipe 14 is installed inside the reactor body 1, a first nozzle 16 is arranged on the inner wall surface of the spiral spray pipe 14, a splitter plate 15 is installed above the inside of the reactor body 1, a straight spray pipe 17 is vertically installed at the bottom end of the splitter plate 15, a second nozzle 18 is arranged on the outer side surface of the straight spray pipe 17, a first support seat 2 is installed on one side of the reactor body 1, a first tank body 3 is installed on the top of the first support seat 2, the inside of the first tank body 3 is connected with a first circulating pump 7 through a pipeline, one end of the first circulating pump 7 is connected with a pipeline heat exchanger 8, one end of the heat exchanger 8 penetrates through the surface of the reactor body 1 through the pipeline and is connected with the spiral spray pipe 14, and a second support seat 13 is installed on the other side of the reactor body 1, the second jar of body 11 is installed at 13 tops of second supporting seat, the second jar of body 11 is inside to be connected with second circulating pump 10 through the pipeline, 1 surface and shunt tubes through connection of reactor body are run through to second circulating pump 10 one end through the pipeline, the first jar of internal 3 is inside to be deposited with the starter, the second jar of internal 11 is inside to be deposited with ethylene oxide, straight spray tube 17 is provided with a plurality ofly, and a plurality of straight spray tubes 17 equal angle installation in 15 bottoms of flow distribution disc.

In this embodiment: through the matching use of the spiral spray pipe 14, the first nozzle 16, the straight spray pipe 17 and the second nozzle 18, the initiator and the ethylene oxide entering the reactor body 1 are conveniently and fully contacted, during the work, the initiator is conveyed from the first tank body 3 by the first circulating pump 7 to the pipe layer of the heat exchanger 8 to exchange heat with the cooling liquid, then enters the spiral spray pipe 14 inside the reactor body 1, and then is sprayed into the reactor body 1 through the first nozzle 16, the ethylene oxide is conveyed from the second tank body 11 by the second circulating pump 10 to the flow distribution plate 15, then enters the straight spray pipe 17, and then is sprayed into the reactor body 1 through the second nozzle 18, through the opposite spraying mode of the first nozzle 16 and the second nozzle 18, the ethylene oxide is conveniently and fully contacted with the initiator, the molecular weight distribution is uniform, the high-quality product is obtained, the operation is simple in the mode, as long as the molecular weight normal proportion designed according to the production requirement adds corresponding initiator and ethylene oxide, make ethylene oxide and reactant fully contact through reation kettle body spiral pipe and ethylene oxide to the sprinkling irrigation pipe, the temperature during production is regulated and control to outer heat exchanger 8, product quality obviously promotes, product extra small molecular weight is low with super large molecular weight content, the color and luster is good, molecular weight distribution is narrower, free ethylene oxide content is less than 0.2PPm, the use of later stage product of being convenient for, install observation window 4 at the surface of first jar of body 3 and second jar of body 11, can observe the state of the inside material of first jar of body 3 and second jar of body 11 through observation window 4.

Specifically, 11 surface mounting of the first jar of body 3 and the second jar of body has observation window 4, 4 surfaces of observation window are provided with scale mark 5, pan feeding mouth 6 has been seted up on the first jar of body 3 and the 11 top surfaces of the second jar of body, driving motor 21 is installed to pan feeding mouth 6 one side, 11 internally mounted of the first jar of body 3 and the second jar of body has main shaft 20, stirring leaf 19 is installed to main shaft 20 bottom, main shaft 20 top is connected with driving motor 21 output.

In this embodiment: can observe the state of the first jar of body 3 and the 11 inside materials of second jar through observation window 4, can be accurate pour into the raw materials of the first jar of body 3 and the 11 inside of second jar through setting up scale mark 5, the staff's operation of being convenient for, through the cooperation that sets up driving motor 21, main shaft 20 and stirring leaf 19, be convenient for stir the first jar of body 3 and the 11 inside materials of second jar, avoid appearing the phenomenon of layering.

Specifically, landing leg 12 is all installed to reactor body 1, first support column and second support column bottom, 1 surface mounting of reactor body has control panel 9, and 9 one end of control panel passes through power cord and first circulating pump 7, second circulating pump 10 and driving motor 21 electric connection.

In this embodiment: through setting up control panel 9, be convenient for control the interior electric element of reactor body 1, control panel 9 control circuit can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, only uses it, does not reform transform, so control mode and circuit connection are not described in detail again.

The working principle is as follows: through the matching use of the spiral spray pipe 14, the first nozzle 16, the straight spray pipe 17 and the second nozzle 18, the initiator and the ethylene oxide entering the reactor body 1 are conveniently and fully contacted, during the work, the initiator is conveyed from the first tank body 3 by the first circulating pump 7 to the pipe layer of the heat exchanger 8 to exchange heat with the cooling liquid, then enters the spiral spray pipe 14 inside the reactor body 1, and then is sprayed into the reactor body 1 through the first nozzle 16, the ethylene oxide is conveyed from the second tank body 11 by the second circulating pump 10 to the flow distribution plate 15, then enters the straight spray pipe 17, and then is sprayed into the reactor body 1 through the second nozzle 18, through the opposite spraying mode of the first nozzle 16 and the second nozzle 18, the ethylene oxide is conveniently and fully contacted with the initiator, the molecular weight distribution is uniform, the high-quality product is obtained, the operation is simple in the mode, as long as the corresponding initiator and ethylene oxide are added according to the normal proportion of molecular weight designed according to production requirements, the ethylene oxide is fully contacted with reactants through a spiral pipe of a reaction kettle and an ethylene oxide pair spray irrigation pipe, the temperature of the outer heat exchanger 8 during production is regulated, the product quality is obviously improved, the product has low content of ultra-small molecular weight and ultra-large molecular weight, good color and narrower molecular weight distribution, the content of free ethylene oxide is less than 0.2PPm, the later-stage product use is convenient, observation windows 4 are arranged on the surfaces of a first tank body 3 and a second tank body 11, the states of materials in the first tank body 3 and the second tank body 11 can be observed through the observation windows 4, then scale marks 5 are arranged on the surfaces of the first tank body 3 and the second tank body 11, the raw materials in the first tank body 3 and the second tank body 11 can be accurately injected through the scale marks 5, and the operation of workers is convenient, and finally, the materials in the first tank body 3 and the second tank body 11 are conveniently stirred by matching the driving motor 21, the main shaft 20 and the stirring blades 19, so that the layering phenomenon is avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a single cycle ethoxylation reactor, includes reactor body (1), its characterized in that, reactor body (1) internally mounted has spiral spray tube (14), first nozzle (16) have been seted up to spiral spray tube (14) inner wall surface, diverter plate (15) are installed to reactor body (1) inside top, straight spray tube (17) are vertically installed to diverter plate (15) bottom, second nozzle (18) have been seted up to straight spray tube (17) outside surface, first supporting seat (2) are installed to reactor body (1) one side, the first jar of body (3) is installed at first supporting seat (2) top, the inside pipeline that passes through of the first jar of body (3) is connected with first circulating pump (7), first circulating pump (7) one end is passed through pipe heat exchanger (8) and is connected, heat exchanger (8) one end runs through reactor body (1) surface through the pipeline and is link up with spiral spray tube (14), second supporting seat (13) is installed to reactor body (1) opposite side, the second jar of body (11) is installed at second supporting seat (13) top, the second jar of body (11) is inside to be connected with second circulating pump (10) through the pipeline, second circulating pump (10) one end runs through reactor body (1) surface and shunt tubes through connection through the pipeline.

2. The single-cycle ethoxylation reactor of claim 1, wherein the first tank body (3) and the second tank body (11) are provided with observation windows (4) on the surface, the observation windows (4) are provided with scale marks (5) on the surface, the top surfaces of the first tank body (3) and the second tank body (11) are provided with a feeding port (6), one side of the feeding port (6) is provided with a driving motor (21), the first tank body (3) and the second tank body (11) are internally provided with a main shaft (20), the bottom end of the main shaft (20) is provided with a stirring blade (19), and the top end of the main shaft (20) is connected with the output end of the driving motor (21).

3. A single cycle ethoxylation reactor according to claim 1 wherein the first tank (3) has an initiator stored therein and the second tank (11) has ethylene oxide stored therein.

4. A single-cycle ethoxylation reactor according to claim 1, wherein the number of straight nozzles (17) is multiple, and the multiple straight nozzles (17) are installed at the bottom end of the diversion tray (15) at equal angles.

5. A single cycle ethoxylation reactor according to claim 1 wherein the bottom ends of the reactor body (1), the first support column and the second support column are provided with legs (12).

6. The single-circulation ethoxylation reactor as claimed in claim 1, wherein a control panel (9) is installed on the surface of the reactor body (1), and one end of the control panel (9) is electrically connected with the first circulation pump (7), the second circulation pump (10) and the driving motor (21) through power lines.