Catalyst feeding device for fatty alcohol-polyoxyethylene ether

Abstract

The utility model discloses a fatty alcohol-polyoxyethylene ether catalyst feeding device which comprises a reaction kettle body, a rotating pipe is rotatably mounted at the top of the reaction kettle body through a mechanical seal, a feeding pipe is rotatably mounted in the rotating pipe, a catalyst is conveyed to a concentration box through a screw conveyor, and the concentration box is connected with the rotating pipe. A catalyst is driven to be dispersed towards the two sides in a concentration box through use of triangular blocks, then the concentration box is driven to rotate through operation of a motor, the catalyst in the concentration box is thrown to the two sides of the concentration box under the action of centrifugal force, and catalyst raw materials are dispersed and discharged through a plurality of discharging holes, so that the falling area of the catalyst raw materials is increased; the mixing efficiency of the catalyst and the to-be-catalyzed raw materials is improved, the mixing time is shortened, when the catalyst is not discharged, the catalyst is conveyed into the concentration box through the screw conveyor, the catalyst can be stored in the concentration box, and the next catalyst discharging is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a catalyst feeding device for fatty alcohol polyoxyethylene ether. Background Art

[0002] Fatty alcohol polyoxyethylene ether, also known as alcohol ether and alcohol ethoxylate, is the fastest growing and most widely used product among non-ionic surfactants. In the production process of fatty alcohol polyoxyethylene ether, sodium hydroxide is used as a catalyst to increase the production speed of fatty alcohol polyoxyethylene ether.

[0003] In the existing fatty alcohol polyoxyethylene ether production process, sodium hydroxide is generally directly conveyed to the inside of the reactor by a screw conveyor, and then the raw materials are mixed by heating, stirring and other operations. However, when the sodium hydroxide catalyst is fed, the pouring position of the sodium hydroxide catalyst is at one position. In order to mix the raw materials with the sodium hydroxide catalyst, it can only be stirred for a long time, which results in a long stirring reaction time. Summary of the invention

[0004] The utility model aims to provide a catalyst feeding device for fatty alcohol polyoxyethylene ether to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a catalyst feeding device for fatty alcohol polyoxyethylene ether, comprising a reactor body, a rotating tube rotatably installed on the top of the reactor body through a mechanical seal, a feeding pipe rotatably installed inside the rotating tube, the top of the feeding pipe is connected to the discharge end of a screw conveyor through a bearing, a concentrating box for gathering catalyst raw materials is fixedly installed at the bottom of the rotating tube, the end of the concentrating box is offset from the stirring blades on the reactor body, and discharge holes for dispersing and discharging the catalyst raw materials are equidistantly provided at the bottom of the concentrating box.

[0006] As a further preferred embodiment of the present technical solution, a driven gear is fixedly installed on the outer side of the top end of the rotating tube, a motor is fixedly installed on the top of the reactor body near the driven gear, a driving gear is fixedly installed on the output end of the motor, and the driving gear is meshingly connected with the driven gear.

[0007] As a further preferred embodiment of the present technical solution, a triangular block for dispersing the catalyst raw materials inside the concentrating box to both sides is fixedly installed in the middle of the concentrating box.

[0008] As a further preferred embodiment of the present technical solution, a triangular stopper is equidistantly and fixedly installed inside the central box at one end of the material discharge hole.

[0009] As a further preferred embodiment of the present technical solution, a limit rod is symmetrically fixedly installed on the top inner wall of the concentrated box, a movable frame is symmetrically and slidably installed between the two limit rods, a limit hole is opened on the movable frame corresponding to the position of the limit rod, the limit hole is slidably connected to the limit rod, and a U-shaped plate for blocking the discharge hole is equidistantly fixedly installed on the bottom of the movable frame, and the bottom end of the U-shaped plate is arranged above the discharge hole, an insertion rod is fixedly installed on one end of the movable frame, the insertion rod and the end portion passing through the concentrated box are slidably connected to the concentrated box, a reset spring is sleeved on the outer side of the insertion rod, one end of the reset spring is fixedly connected to the concentrated box, and the other end of the reset spring is fixedly connected to the end of the insertion rod away from the movable frame.

[0010] As a further preferred embodiment of the present technical solution, a weight block is fixedly mounted on one end of the insertion rod away from the movable frame.

[0011] The utility model provides a catalyst feeding device for fatty alcohol polyoxyethylene ether, which has the following beneficial effects:

[0012] (1) The utility model uses a screw conveyor to convey the catalyst to a concentration box. The use of triangular blocks drives the catalyst to disperse to both sides inside the concentration box. The operation of the motor drives the concentration box to rotate. The centrifugal force eliminates the blocking of the discharge hole by the U-shaped plate. At the same time, the catalyst inside the concentration box is thrown to both sides of the concentration box. During this process, the catalyst hits a number of triangular blocks, driving different amounts of catalyst to discharge holes at different positions. The catalyst raw materials are dispersed and discharged through the several discharge holes, thereby increasing the falling area of ​​the catalyst raw materials, improving the mixing efficiency of the catalyst and the raw materials to be catalyzed, and reducing the mixing time.

[0013] (2) When the catalyst is not being unloaded, the catalyst is also transported to the interior of the concentration box by the screw conveyor. Since the concentration box does not rotate at this time and there is no centrifugal force, the U-shaped plate will block the unloading hole at this time, and the catalyst can be stored in the concentration box, which is convenient for the next catalyst unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the partial explosion structure of the utility model;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of a partial cross-section explosion structure of the utility model;

[0018] In the figure: 1. Reactor body; 2. Rotating tube; 3. Feeding tube; 4. Centralizing box; 5. Feeding hole; 6. Driven gear; 7. Motor; 8. Driving gear; 9. Triangular block; 10. Triangular stopper; 11. Limit rod; 12. Moving frame; 13. Limit hole; 14. U-shaped plate; 15. Insert rod; 16. Reset spring; 17. Weight block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, the catalyst feeding device of fatty alcohol polyoxyethylene ether includes a reactor body 1, a rotating tube 2 is rotatably installed on the top of the reactor body 1 through a mechanical seal, a feeding tube 3 is rotatably installed inside the rotating tube 2, the top of the feeding tube 3 is connected to the discharge end of the screw conveyor through a bearing, a concentrating box 4 for gathering the catalyst raw materials is fixedly installed at the bottom of the rotating tube 2, the end of the concentrating box 4 is biased towards the stirring blades on the reactor body 1, and the bottom of the concentrating box 4 is equidistantly provided with discharge holes 5 for dispersing and discharging the catalyst raw materials.

[0021] like Figures 1 to 4 As shown, a driven gear 6 is fixedly installed on the outer side of the top end of the rotating tube 2, a motor 7 is fixedly installed on the top of the reactor body 1 near the driven gear 6, and a driving gear 8 is fixedly installed on the output end of the motor 7, and the driving gear 8 is meshed and connected with the driven gear 6.

[0022] The operation of the motor 7 drives the driving gear 8 to rotate, and the meshing of the driving gear 8 and the driven gear 6 drives the concentration box 4 to rotate. Through the action of centrifugal force, the catalyst inside the concentration box 4 will be thrown to both sides of the concentration box 4, which is used to expand the catalyst discharge position.

[0023] like Figures 1 to 4 As shown, a triangular block 9 for dispersing the catalyst raw materials inside the concentrating box 4 to both sides is fixedly installed in the middle of the concentrating box 4 .

[0024] When the catalyst enters the concentration box 4 , the triangular blocks 9 can disperse the catalyst in the concentration box 4 to both sides.

[0025] like Figures 1 to 4 As shown, a triangular stopper 10 is fixedly installed equidistantly at one end of the discharge hole 5 in the interior of the centralizing box 4 .

[0026] The catalyst inside the concentration box 4 will be thrown to both sides of the concentration box 4. During this process, the catalyst will hit several triangular blocks 9, driving different amounts of catalyst to the discharge holes 5 at different positions, and the catalyst raw materials will be dispersed and discharged through the several discharge holes 5.

[0027] like Figures 1 to 4 As shown, a limiting rod 11 is symmetrically fixedly installed on the inner wall of the top end of the concentrated box 4, and a movable frame 12 is symmetrically slidably installed between the two limiting rods 11. The movable frame 12 has a limiting hole 13 corresponding to the position of the limiting rod 11, and the limiting hole 13 is slidably connected to the limiting rod 11. A U-shaped plate 14 for blocking the discharge hole 5 is equidistantly fixedly installed at the bottom of the movable frame 12, and the bottom end of the U-shaped plate 14 is arranged above the discharge hole 5. An insertion rod 15 is fixedly installed at one end of the movable frame 12, and the insertion rod 15 and the end portion passing through the concentrated box 4 are slidably connected to the concentrated box 4. A reset spring 16 is sleeved on the outer side of the insertion rod 15, and one end of the reset spring 16 is fixedly connected to the concentrated box 4, and the other end of the reset spring 16 is fixedly connected to the end of the insertion rod 15 away from the movable frame 12.

[0028] When the concentrated box 4 is driven to rotate by the operation of the motor 7, the two movable frames 12 will move to both ends along the trajectory of the limit rod 11 due to the effect of centrifugal force. At this time, the reset spring 16 is in an elongated state, and the blocking of the discharge hole 5 by the U-shaped plate 14 is cancelled. When the motor 7 is cancelled to drive the concentrated box 4 to rotate, the pulling of the insertion rod 15 by the reset spring 16 will drive the U-shaped plate 14 to move to the position for blocking the discharge hole 5. At the same time, when the catalyst is not discharged, the catalyst is also transported to the inside of the concentrated box 4 through the screw conveyor. Since the concentrated box 4 does not rotate at this time and there is no centrifugal force, the U-shaped plate 14 will block the discharge hole 5 at this time, and the catalyst can be stored in the concentrated box 4, which is convenient for the next catalyst discharge.

[0029] like Figures 1 to 4 As shown, a weight block 17 is fixedly mounted on one end of the insertion rod 15 away from the moving frame 12 .

[0030] Under the action of centrifugal force, by adding the weight 17, the moving frame 12 can be driven to move quickly.

[0031] The utility model provides a catalyst feeding device for fatty alcohol polyoxyethylene ether, and the specific working principle is as follows:

[0032] When the device is in use, the catalyst is transported to the inside of the feeding pipe 3 by the screw conveyor, and the catalyst inside the feeding pipe 3 will enter the concentration box 4 through the rotating tube 2. The use of the triangular block 9 will drive the catalyst to disperse to both sides inside the concentration box 4, and then the driving gear 8 will be driven to rotate by the operation of the motor 7, and the concentration box 4 will be driven to rotate by the meshing of the driving gear 8 and the driven gear 6. Through the action of centrifugal force, the two moving frames 12 will move to both ends along the trajectory of the limit rod 11, canceling the blocking of the U-shaped plate 14 on the feed hole 5, and at the same time, the catalyst inside the concentration box 4 will be thrown to both sides of the concentration box 4. During the process, the catalyst will hit several triangular blocks 9, driving unequal amounts of catalyst to the discharge holes 5 at different positions, and the catalyst raw materials will be dispersed and discharged through several discharge holes 5, thereby increasing the falling area of ​​the catalyst raw materials, improving the mixing efficiency of the catalyst and the raw materials to be catalyzed, and reducing the mixing time. When the catalyst is not discharged, the catalyst is also transported to the inside of the concentration box 4 through the screw conveyor. Since the concentration box 4 does not rotate at this time and there is no centrifugal force, the U-shaped plate 14 will block the discharge hole 5 at this time, and the catalyst can be stored in the concentration box 4, which is convenient for the next catalyst discharge.

Claims

1. A catalyst feeding device for fatty alcohol polyoxyethylene ether, comprising a reactor body (1), characterized in that: A rotating tube (2) is rotatably mounted on the top of the reactor body (1) via a mechanical seal, a feeding tube (3) is rotatably mounted inside the rotating tube (2), the top of the feeding tube (3) is connected to the discharge end of the screw conveyor via a bearing, a concentrating box (4) for gathering catalyst raw materials is fixedly mounted on the bottom of the rotating tube (2), the end of the concentrating box (4) is arranged offset from the stirring blade on the reactor body (1), and discharge holes (5) for dispersing and discharging the catalyst raw materials are equidistantly provided at the bottom of the concentrating box (4).

2. The catalyst feeding device for fatty alcohol polyoxyethylene ether according to claim 1, characterized in that: A driven gear (6) is fixedly mounted on the outer side of the top end of the rotating tube (2); a motor (7) is fixedly mounted on the top of the reactor body (1) near the driven gear (6); a driving gear (8) is fixedly mounted on the output end of the motor (7); and the driving gear (8) is meshingly connected with the driven gear (6).

3. The catalyst feeding device of fatty alcohol polyoxyethylene ether according to claim 1, characterized in that: A triangular block (9) for dispersing the catalyst raw materials inside the concentrating box (4) to both sides is fixedly installed in the middle of the concentrating box (4).

4. The catalyst feeding device for fatty alcohol polyoxyethylene ether according to claim 3, characterized in that: A triangular stopper (10) is fixedly installed at an equidistant position inside the centralizing box (4) at one end of the corresponding material discharge hole (5).

5. The catalyst feeding device for fatty alcohol polyoxyethylene ether according to claim 4, characterized in that: A limit rod (11) is symmetrically fixedly installed on the inner wall of the top end of the centralizing box (4), a movable frame (12) is symmetrically slidably installed between the two limit rods (11), a limit hole (13) is provided on the movable frame (12) corresponding to the position of the limit rod (11), the limit hole (13) is slidably connected to the limit rod (11), a U-shaped plate (14) for blocking the discharge hole (5) is equidistantly fixedly installed on the bottom of the movable frame (12), the bottom end of the U-shaped plate (14) is arranged above the discharge hole (5), an insertion rod (15) is fixedly installed on one end of the movable frame (12), the insertion rod (15) and the end portion passing through the centralizing box (4) are slidably connected to the centralizing box (4), a return spring (16) is sleeved on the outer side of the insertion rod (15), one end of the return spring (16) is fixedly connected to the centralizing box (4), and the other end of the return spring (16) is fixedly connected to one end of the insertion rod (15) away from the movable frame (12).

6. The catalyst feeding device for fatty alcohol polyoxyethylene ether according to claim 5, characterized in that: A weight block (17) is fixedly mounted on one end of the insertion rod (15) away from the movable frame (12).

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