CN216826193U

CN216826193U - Styrene reaction kettle

Info

Publication number: CN216826193U
Application number: CN202220244164.9U
Authority: CN
Inventors: 朱向阳; 沈德新; 陆敏山; 王凯; 满鑫; 王猛
Original assignee: Liaoning Litian New Materials Co ltd
Current assignee: Liaoning Litian New Materials Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-06-28
Anticipated expiration: 2032-01-29

Abstract

The utility model relates to a styrene production facility, especially a styrene reation kettle. The stirring shaft is provided with a plurality of layers of forward rotating blades and reverse rotating blades with opposite rotating directions, the forward rotating blades and the reverse rotating blades are respectively and fixedly connected with the stirring shaft in the circumferential direction and rotatably connected with the stirring shaft, the forward rotating blades and the reverse rotating blades are arranged from bottom to top in an interlayer, and the reverse rotating blades on the top layer are driven by a rotating sleeve sleeved at the upper end of the stirring shaft; the adjacent two layers of counter-rotating blades are driven by a horizontal transmission rod in a shape of a Chinese character ji; the stopper is the multilayer, and every layer stopper is located between adjacent positive rotating blade and the anti-rotating blade, and the stopper is multistage extending structure, and inlet tube and wet return are all installed to the first stopper on every layer. The forward rotating paddle and the reverse rotating paddle of the utility model rotate reversely, thereby greatly improving the stirring effect; in the material reaction process in the styrene reaction kettle, when the temperature needs to be raised quickly, the stopper stretches into the cylinder body, the temperature is raised quickly, and the reaction effect is greatly improved.

Description

Styrene reaction kettle

Technical Field

The utility model relates to a styrene production facility, especially a styrene reation kettle.

Background

The reaction kettle is taken as typical main reaction equipment in chemical production, and is used for dispersing and mixing various materials through stirring, heating and cooling so as to carry out reaction polymerization and the like. When reaction occurs in the reaction kettle, the stirring shaft drives the stirring paddle to rotate, so that the reaction materials are fully mixed. At present, the stirring paddle of the stirring shaft has single rotation direction and poor mixing effect; the heat exchange effect of heating and cooling the liquid in the reaction kettle is poor, and the reaction effect of the reaction materials is influenced.

The patent of the Chinese utility model with the publication number of CN214598893U discloses a high-pressure reactor for synthesizing covalent organic frame mixed matrix membrane, which adopts two stirring shafts to stir with high cost.

Chinese utility model patent with grant publication number CN213590442U discloses a chemical industry reation kettle's heat abstractor, this utility model is provided with spiral cooling liquid pipe inside the reation kettle inner shell, and this utility model's spiral cooling pipe occupies reation kettle's inner space, and spiral cooling liquid pipe is difficult to be cleared up moreover, and long-time use aftercooling effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and provide a styrene reation kettle, improve mixed effect and heat transfer effect, productivity gain.

The utility model provides a its technical problem, the technical scheme of adoption is:

a styrene reaction kettle comprises a barrel body, a lower end socket, an upper cover and a stirring shaft, wherein the stirring shaft is arranged in the barrel body, the inner barrel wall of the barrel body is provided with a radial stopper, the stirring shaft is provided with a plurality of layers of forward rotating blades and reverse rotating blades with opposite rotation directions, the forward rotating blades and the reverse rotating blades are respectively and fixedly connected and rotatably connected with the stirring shaft in the circumferential direction, the forward rotating blades and the reverse rotating blades are arranged from bottom to top in an interlayer manner, the reverse rotating blades at the top layer are driven by a rotating sleeve sleeved at the upper end of the stirring shaft, and the rotating sleeve and the stirring shaft are driven by a driving mechanism and have opposite rotation directions; the reverse rotating blades of two adjacent layers are driven by a horizontal transmission rod in a shape like a Chinese character 'ji', and the forward rotating blades rotate in a horizontal frame gap of the transmission rod; the stopper is the multilayer, and every layer stopper is located between adjacent positive rotating paddle leaf and the anti-rotating paddle leaf, and the stopper is multistage extending structure, drives through the driving piece between first stopper and the last stopper, and inlet tube and wet return are all installed to every layer first stopper.

Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:

the forward rotating blades are driven by the stirring shaft to rotate clockwise, the reverse rotating blades are driven by the rotating sleeve and the transmission rod to rotate anticlockwise, and the forward rotating blades and the reverse rotating blades rotate reversely, so that the stirring effect is greatly improved; in the material reaction process in the styrene reaction kettle, when the temperature needs to be raised quickly, the stopper extends into the cylinder, the inner end of the final-stage stopper is close to the stirring shaft, the temperature is raised quickly, the reaction effect is greatly improved, and in the process that the stopper extends into the cylinder, the forward rotating blades and the reverse rotating blades are normally stirred, so that the production efficiency is greatly improved; the forward rotating blades and the reverse rotating blades are positioned on the same stirring shaft, and the structure is simple.

Further, the utility model discloses an optimization scheme is:

the lower end of the rotary sleeve extends into the cylinder, the upper end of the connecting rod is fixedly connected with the lower end of the rotary sleeve, the lower end of the connecting rod is connected with a bearing seat on the top layer through a connecting plate, the bearing seat is rotatably connected with the stirring shaft, and the counter-rotating paddle is installed on the bearing seat.

The upper vertical part of the transmission rod is fixedly connected with the lower connecting plate, the lower connecting plate is axially and fixedly connected with the lower end face of the bearing seat on the upper layer of the transmission rod, the lower vertical part of the transmission rod is fixedly connected with the upper connecting plate, and the upper connecting plate is axially and fixedly connected with the upper end face of the bearing seat on the lower layer of the transmission rod.

The water inlet pipes of the first-stage stoppers on the same layer are connected in parallel, and the water return pipes of the first-stage stoppers on the same layer are connected in parallel.

The transmission rod is a strip-shaped plate welding component.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the connection of the stirring shaft, the forward rotating blade and the backward rotating blade according to the embodiment of the present invention;

FIG. 3 is a schematic view of the connection between the stirring shaft and the forward rotating blades according to the embodiment of the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of the connection between the stirring shaft and the contra-rotating blade according to the embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a schematic view of the connection between the stirring shaft, the rotating sleeve and the driving mechanism according to the embodiment of the present invention;

figure 8 is a front view of the drive link of an embodiment of the present invention;

FIG. 9 is a top view of FIG. 8;

figure 10 is a top view of a stopper of an embodiment of the invention;

fig. 11 is a schematic connection diagram of the stoppers of the embodiments of the present invention;

figure 12 is a schematic view of a stopper retraction according to an embodiment of the present invention;

fig. 13 is a schematic diagram of a stopper extension according to an embodiment of the present invention.

In the figure: a lower end enclosure 1; a cylinder body 2; an upper cover 3; a fixing ring 3-1; 3-2 of rotary seal; a stirring shaft 4; a stirring blade 5; 5-1 of a positive rotation paddle; 5-2 parts of a reverse rotation paddle; a semicircular sleeve 6; an ear plate 7; a key 8; a set screw 9; a bearing housing 10; a connecting plate 11; a bearing 12; a spacer ring 13; a gland 14; a seal ring 15; a shaft circlip 16; a circlip for hole 17; a coupling 18; a speed reducer 19; a first output shaft 19-1; a second output shaft 19-2; a bracket 19-3; a motor 20; a rotary sleeve 21; a sealing cover 21-1; a collar 21-2; a driven gear 22; a drive gear 23; a transmission rod 24; connecting rod 24-1; an upper connecting plate 24-2; a lower connecting plate 24-3; a stopper 25; a primary blocker 25-1; a secondary blocker 25-2; a tertiary blocker 25-3; 25-4 of a sealing ring; 25-5 of a positioning strip; 25-6 of a positioning frame; outer end plates 25-7; an inner end plate 25-8; a cylinder 26; a cylinder 26-1; a piston rod 26-2; 26-3 of a connecting block; a bracket 27; an O-ring 28; an elastic blade 29; a water inlet pipe 30; a water return pipe 31; the fins 32; an elastic blade 33.

Detailed Description

The present invention will be further described in detail with reference to the drawings and examples.

Referring to fig. 1, the embodiment is a styrene reaction kettle, the reaction kettle is composed of a lower end enclosure 1, a cylinder 2, an upper cover 3, a stirring shaft 4, a stirring blade 5 and the like, the lower end enclosure 1 and the upper cover 3 are detachably connected with the cylinder 2 respectively, the stirring shaft 4 is vertically arranged in the cylinder 2, the upper end of the stirring shaft 4 extends out of a central hole of the upper cover 3, and the central hole is welded with a fixing ring 3-1.

Six layers of radial stirring blades 5 (shown in figures 2-6) are arranged on the stirring shaft 4, two or four radial stirring blades 5 are symmetrically arranged on each layer, the stirring blades 5 are divided into a forward rotating blade 5-1 and a reverse rotating blade 5-2, the forward rotating blade 5-1 and the reverse rotating blade 5-2 are arranged in an interlayer mode, the first layer, the third layer and the fifth layer are all the forward rotating blades 5-1 from bottom to top, and the second layer, the fourth layer and the sixth layer are all the reverse rotating blades 5-2. The positive rotation paddle 5-1 is connected with the stirring shaft 4 through the semicircular sleeve 6, the inner end of the positive rotation paddle 5-1 is welded on the outer arc surface of the semicircular sleeve 6, the outer arc surface of the open end of the semicircular sleeve 6 is welded with the radial lug plate 7, the semicircular sleeve 6 is connected with the stirring shaft 4 through the key 8, the two semicircular sleeves 6 are symmetrically buckled on the stirring shaft 4, the two semicircular sleeves 6 are connected with the bolt through the lug plates 7, and the radial positioning screw 9 is arranged between the semicircular sleeves 6 and the stirring shaft 4.

The reverse rotating blades 5-2 are connected with the stirring shaft 4 through bearing seats 10, radial connecting plates 11 are symmetrically welded on the outer circumferential surfaces of the bearing seats 10, and the inner ends of the reverse rotating blades 5-2 are connected with the connecting plates 11 through bolts. The bearing seat 10 is connected with the stirring shaft 4 through two disc bearings 12, a spacing ring 13 is arranged between the two disc bearings 12, the bearings 12 are positioned on the stirring shaft 4 through elastic check rings 16 for a shaft, the bearing seat 10 is positioned with the bearings 12 through elastic check rings 17 for a hole, the upper end and the lower end of the bearing seat 10 are respectively provided with a gland 14, and sealing rings 15 are respectively arranged between the gland 14 and the bearing seat 10 and between the gland 14 and the stirring shaft 4. For the convenience of assembly and disassembly, the diameters of the bearing positions of the bearing 12 are increased from bottom to top.

The upper part of the stirring shaft 4 is sleeved with a rotating sleeve 21, the upper part and the lower part of the rotating sleeve 21 are connected with the stirring shaft 4 through two disc bearings 12, the bearings 12 are positioned on the stirring shaft 4 through elastic retaining rings for the shaft, the inner circumferential surface of a fixed ring 3-1 is provided with a rotating seal 3-2 matched with the rotating sleeve 21, the upper end and the lower end of the rotating sleeve 21 are respectively provided with a sealing cover 21-1 used for sealing the bearings 12, and the inner circumferential surface of the sealing cover 21-1 is provided with a sealing ring sealed with the stirring shaft 4. The lower end of the rotary sleeve 21 extends into the cylinder body 2, the outer circumferential surface of the lower end of the rotary sleeve 21 is connected with the upper end of a vertical connecting rod 24-1 through a bolt, the lower end of the connecting rod 24-1 is connected with a vertical upper connecting plate 24-2 through a bolt, and the lower end of the upper connecting plate 24-2 is welded on the upper end surface of a bearing seat 10 of a sixth layer of anti-rotation blades 5-2.

The lower end face of the bearing seat 10 of the contra-rotating blade 5-2 at the sixth layer is welded with a vertical lower connecting plate 24-3, the upper end face and the lower end face of the bearing seat 10 at the fourth layer are respectively welded with an upper connecting plate 24-2 and a lower connecting plate 24-3, and the upper end face of the bearing seat 10 at the second layer is welded with an upper connecting plate 24-2. The bearing seats 10 on the sixth layer and the fourth layer are connected through a transmission rod 24 in a shape like a Chinese character 'ji', the transmission rod 24 is horizontally arranged (shown in figures 8 and 9), the upper vertical part of the transmission rod 24 is connected with the lower connecting plate 24-3 of the bearing seat 10 on the sixth layer through a bolt, and the lower vertical part of the transmission rod 24 is connected with the upper connecting plate 24-2 of the bearing seat on the fourth layer through a bolt. The bearing seat 10 of the fourth layer is connected with the bearing seat 10 of the second layer through a transmission rod 24, and the upper end face of the bearing seat 10 of the second layer is welded with an upper connecting plate 24-2. The horizontal frame part 24-4 of the transmission rod 24 contains the forward rotating blade 5-1, when the forward rotating blade 5-1 rotates, the forward rotating blade passes through the frame gap of the frame part 24-4 of the transmission rod 24, and the transmission rod 24 plays a role in stirring while being connected with the bearing seat 10 for transmission.

The upper end of the stirring shaft 4 is connected with a first output shaft 19-1 of a speed reducer 19 through a coupling 18 (shown in fig. 7), the speed reducer 19 is driven by a motor 20, and the speed reducer 19 is mounted on the upper cover 3 through a bracket 19-3. The shaft collar 21-2 is sleeved on the upper part of the rotating sleeve 21 and welded with the rotating sleeve 21, the driven gear 22 is sleeved on the rotating sleeve 21 and connected with the shaft collar 21-2 through a bolt, the driven gear 22 is meshed with the driving gear 23, and the driving gear 23 is installed on the second output shaft 19-2. The first output shaft 19-1 drives the stirring shaft 4 to rotate clockwise, and the second output shaft 19-2 drives the rotating sleeve 21 to rotate anticlockwise through the driving gear 23 and the driven gear 22. The stirring shaft 4 drives the three layers of forward-rotating blades 5-1 to rotate clockwise, the rotating sleeve 21 drives the three layers of reverse-rotating blades 5-2 to rotate anticlockwise through the bearing seat 10 and the transmission rod 24, and the stirring effect is greatly improved. In order to achieve a better stirring effect, the driven gear 22 and the driving gear 23 respectively adopt a triple gear (not shown in the figure), and the driving gear 23 is provided with a shifting fork which is driven by an electric push rod. The reverse rotation paddle 5-2 realizes three different rotating speeds, so that different rotating speed differences between the reverse rotation paddle 5-2 and the forward rotation paddle 5-1 are formed, and the stirring effect is better improved.

Five layers of radial stoppers 25 are arranged on the inner cylinder wall of the cylinder body 2, six stoppers are uniformly distributed on each layer of inner cylinder wall of the cylinder body 2, and the number of the stoppers 25 on each layer is adjusted according to the diameter of the cylinder body 2. Each layer of the stopper 25 is positioned between two adjacent forward rotating blades 5-1 and reverse rotating blades 5-2, and the stopper 25 corresponds to a space between the forward rotating blades 5-1 and the reverse rotating blades 5-2. The stopper 25 is a three-stage telescopic structure (shown in fig. 10 and 11), and is composed of a first-stage stopper 25-1, a second-stage stopper 25-2 and a third-stage stopper 25-3, each stage of stopper is rectangular, and each stage of stopper is of a hollow cavity structure. The third-level stopper 25-3 is externally sleeved with a second-level stopper 25-2, the second-level stopper 25-2 is externally sleeved with a first-level stopper 25-1, and the outer end of the first-level stopper 25-1 is welded with the cylinder wall of the cylinder body 2.

The area of the port of the extending end of the first-stage stopper 25-1 and the second-stage stopper 25-2 is smaller than that of the port of the outer open end thereof, the wall surface of the port of the extending end of the first-stage stopper 25-1 and the second-stage stopper 25-2 is provided with a sealing ring 25-4, and the sealing ring 25-4 is respectively matched with four outer wall surfaces of the second-stage stopper 25-2 and the third-stage stopper 25-3 in a sealing way. Rectangular positioning frames 25-6 are welded on the outer peripheral surfaces of the outer open ends of the secondary stopper 25-2 and the tertiary stopper 25-3, grooves are formed in the outer peripheral surfaces of the positioning frames 25-6, sealing rings 25-4 are installed in the grooves, and the sealing rings 25-4 are respectively in sealing fit with the four inner wall surfaces of the primary stopper 25-1 and the secondary stopper 25-2. An outer end plate 25-25 is arranged at the outer open end of the primary stopper 25-1, and a sealing gasket is arranged between the outer end plate 25-25 and the primary stopper 25-1. And the inner circumferential surfaces of the outer open ends of the primary barrier 25-1 and the secondary barrier 25-2 are welded with positioning strips 25-5. The outer end plates 25-25 are respectively welded with a water inlet pipe 30 and a water return pipe 31, the water inlet pipes 30 on the same layer are connected in parallel, the water return pipes 31 on the same layer are connected in parallel, the water inlet pipes 30 are communicated with a heat exchange water pump through pipelines, and the water return pipes 31 are communicated with a heat exchange pool through pipelines.

The primary stopper 25-1 and the tertiary stopper 25-3 are driven by a driving part, the driving part adopts an air cylinder 26, the air cylinder 26 is horizontally arranged on the outer side of the middle part of the primary stopper 25-1, a cylinder body 26-1 of the air cylinder 26 is connected with an outer end plate 25-7 through a support 27, a piston rod 26-2 of the air cylinder 26 penetrates through the outer end plate 25-7 to enter a cavity of the tertiary stopper 25-3, and the end part of the piston rod 26-2 is connected with an inner end plate 25-8 of the tertiary stopper 25-3 through a connecting block 26-3. An O-shaped sealing ring 28 is arranged between the through hole of the outer end plate 25-7 and the piston rod 26-2, and the O-shaped sealing ring 28 seals the piston rod 26-2. Horizontal fins 32 are respectively welded on two side plates of the primary blocker 25-1, so that the heat exchange effect is improved. Elastic scrapers 33 are arranged on the periphery of the outer plate surfaces of the extending ports of the primary stopper 25-1 and the secondary stopper 25-2, and the elastic scrapers 33 are used for cleaning the outer wall surfaces of the secondary stopper 25-2 and the tertiary stopper 25-3.

The utility model discloses a (mixing) shaft 4 is when stirring materials such as styrene, and the stopper is in the state of contracting back (shown in figure 12), and positive rotating paddle leaf 5-1 and contra-rotating paddle leaf 5-2 are rotatory in the opposite direction, make the material stirring even, have improved stirring effect. In the reaction process, when the temperature needs to be raised rapidly, the air cylinder 26 drives the secondary stopper 25-2 and the tertiary stopper 25-3 to extend out (shown in fig. 13), the tertiary stopper 25-3 extends into the center of the cylinder 2 and is close to the stirring shaft 4, the heat dissipation area is increased, liquid is rapidly raised in temperature, the reaction effect of styrene is improved, the forward rotating blades 5-1 and the reverse rotating blades 5-2 rotate while the temperature is raised, the reaction efficiency of styrene is greatly improved, and the yield is improved. After the styrene reaction is finished, the secondary stopper 25-2 and the tertiary stopper 25-3 extend into the barrel 2 to be rapidly cooled. The utility model discloses improve the reaction effect of styrene by a wide margin, shortened reaction time, improved production efficiency by a wide margin.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.

Claims

1. The utility model provides a styrene reation kettle, includes barrel, low head, upper cover, (mixing) shaft, actuating mechanism, and in the barrel was arranged in to the (mixing) shaft, the inner tube wall of barrel was equipped with radial stopper, its characterized in that:

the stirring shaft is provided with a plurality of layers of forward rotating blades and reverse rotating blades with opposite rotation directions, the forward rotating blades and the reverse rotating blades are respectively and fixedly connected and rotatably connected with the stirring shaft in the circumferential direction, the forward rotating blades and the reverse rotating blades are arranged from bottom to top in an interlayer mode, the reverse rotating blades on the top layer are driven by a rotating sleeve sleeved at the upper end of the stirring shaft, and the rotating sleeve and the stirring shaft are driven by a driving mechanism and have opposite rotation directions; the reverse rotating blades of two adjacent layers are driven by a horizontal transmission rod in a shape like a Chinese character 'ji', and the forward rotating blades rotate in a horizontal frame gap of the transmission rod;

the stopper is the multilayer, and every layer stopper is located between adjacent positive rotating paddle leaf and the anti-rotating paddle leaf, and the stopper is multistage extending structure, drives through the driving piece between first stopper and the last stopper, and inlet tube and wet return are all installed to every layer first stopper.

2. A styrene reactor according to claim 1, wherein: the lower end of the rotary sleeve extends into the cylinder, the upper end of the connecting rod is fixedly connected with the lower end of the rotary sleeve, the lower end of the connecting rod is connected with a bearing seat on the top layer through a connecting plate, the bearing seat is rotatably connected with the stirring shaft, and the anti-rotation paddle blades are radially arranged on the bearing seat.

3. A styrene reactor according to claim 1, wherein: the upper vertical part of the transmission rod is fixedly connected with the lower connecting plate, the lower connecting plate is axially and fixedly connected with the lower end face of the bearing seat on the upper layer of the transmission rod, the lower vertical part of the transmission rod is fixedly connected with the upper connecting plate, and the upper connecting plate is axially and fixedly connected with the upper end face of the bearing seat on the lower layer of the transmission rod.

4. A styrene reactor according to claim 1, wherein: the water inlet pipes on the same layer are connected in parallel, and the water return pipes on the same layer are connected in parallel.

5. A styrene reactor according to claim 1, wherein: the transmission rod is a strip-shaped plate welding component.