Esterification kettle feeding device

Abstract

The utility model relates to the technical field of feeding devices, in particular to a feeding device of an esterification kettle, which is characterized in that a feeding pipe is arranged at the top end of a raw material tank, a discharging pipe is arranged at the bottom end of the raw material tank, a plurality of positioning seats and a fixing seat are arranged on the peripheral side of the feeding pipe, and the fixing seat is fixed at the upper end of a mixing tank; a plurality of guide rods which penetrate through the positioning seat and are inserted into the fixing seat are arranged on the peripheral side of the discharging pipe, a sealing ring is arranged at the top end of the feeding pipe, the motor is started, the stirring rods can rotate in the mixing tank, a mixing effect can be provided for raw materials in the mixing tank, and the mixed raw materials are conveyed into a specified esterification kettle through a liquid pump. According to the catalyst, DOTP production raw materials can be uniformly mixed in advance, and the efficiency of dehydrating and esterifying the DOTP production raw materials by the catalyst can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for an esterification kettle. Background Art

[0002] As we all know, an esterification kettle is a reactor that completes esterification and polycondensation simultaneously. It is a high-pressure reaction equipment for esterification reaction. The esterification kettle feeding device is a feeding device that cooperates with the esterification kettle to operate. When DOTP is produced, the raw materials for DOTP production enter the interior of the esterification kettle through the esterification kettle feeding device for esterification and polycondensation reaction.

[0003] When the esterification kettle feeding device cooperates with the esterification kettle to operate, it is necessary to add the production raw materials of DOTP into the interior of the esterification kettle according to a certain ratio and input amount. Since the production raw materials of DOTP are separately fed into the interior of the esterification kettle through different pipelines of the esterification kettle feeding device, the production raw materials of DOTP cannot be evenly mixed in advance, so when the catalyst dehydrates and esterifies the production raw materials of DOTP, the production raw materials of DOTP need a certain amount of time to mix. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an esterification kettle feeding device.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an esterification kettle feeding device, comprising a mixing tank and a bottom plate, a plurality of feed pipes are provided at the upper end of the mixing tank, a plurality of raw material tanks are provided above the mixing tank, a feeding pipe is provided at the top end of the raw material tank, a discharge pipe is provided at the bottom end of the raw material tank, a plurality of positioning seats and fixed seats are provided on the circumference of the feed pipe, the fixed seat is fixed at the upper end of the mixing tank, a plurality of guide rods penetrating the positioning seat and inserted into the interior of the fixed seat are provided on the circumference of the discharge pipe, a sealing ring is provided on the top end of the feed pipe, a stirring rod is provided inside the mixing tank, a motor is provided at one end of the mixing tank, the output end of the motor is connected to the stirring rod, a liquid pump is provided at the upper end of the bottom plate, and the input end of the liquid pump is connected to the mixing tank through a conduit.

[0008] Furthermore, the utility model has the following improvements: the motor is a servo motor.

[0009] Furthermore, the present invention is improved in that a plurality of handles are provided on the outer wall of the raw material tank.

[0010] In order to make the raw material tank more stable during use, the utility model has the following improvements: two clamping plates are symmetrically arranged above the mixing tank, the clamping plates are fixed above the mixing tank by support rods, and the raw material tank is located between the two clamping plates.

[0011] Furthermore, the present invention is improved in that the two clamping plates are both located at the bottom of the raw material tank.

[0012] Furthermore, the utility model is improved in that an anti-slip pad for contacting the raw material tank is provided on the inner wall of the clamping plate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an esterification kettle feeding device, which has the following beneficial effects:

[0015] The esterification kettle feeding device, multiple raw materials flow into the mixing tank through the discharge pipe and the feed pipe in the raw material tank, start the motor, can make the stirring rod rotate in the mixing tank, can provide a mixing effect for the raw materials in the mixing tank, and the mixed raw materials can be transported to the designated esterification kettle through the liquid pump, so that the raw materials for DOTP production can be evenly mixed in advance, and the efficiency of the catalyst in dehydrating and esterifying the raw materials for DOTP production can be improved;

[0016] The guide rod, positioning seat and fixing seat can make the discharge pipe more firmly connected to the feed pipe. When the raw material tank is disassembled, a pulling force is applied to the raw material tank to pull out the guide rod at the positioning seat, so that the raw material tank can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 4 It is a structural schematic diagram of the stirring rod in the utility model;

[0021] In the figure: 1. raw material tank; 2. mixing tank; 3. bottom plate; 4. discharge pipe; 5. feed pipe; 6. guide rod; 7. positioning seat; 8. sealing ring; 9. fixing seat; 10. motor; 11. liquid pump; 12. stirring rod; 13. clamping plate; 14. support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model discloses an esterification kettle feeding device, comprising a mixing tank 2 and a bottom plate 3, wherein a plurality of feed pipes 5 are arranged at the upper end of the mixing tank 2, a plurality of raw material tanks 1 are arranged above the mixing tank 2, a feeding pipe is arranged at the top end of the raw material tank 1, a discharge pipe 4 is arranged at the bottom end of the raw material tank 1, a plurality of positioning seats 7 and a fixing seat 9 are arranged around the feed pipe 5, the fixing seat 9 is fixed at the upper end of the mixing tank 2, a plurality of guide rods 6 penetrating the positioning seat 7 and inserted into the fixing seat 9 are arranged around the discharge pipe 4, a sealing ring 8 is arranged at the top end of the feed pipe 5, a stirring rod 12 is arranged inside the mixing tank 2, and a motor 10 is arranged at one end of the mixing tank 2. The output end of the motor 10 is connected to the stirring rod 12, and the upper end of the bottom plate 3 is provided with a liquid pump 11. The input end of the liquid pump 11 is connected to the mixing tank 2 through a conduit. In this structure, the number of raw material tanks 1 is not specified. Various raw materials flow into the mixing tank 2 through the discharge pipe 4 and the feed pipe 5 in the raw material tank 1. Starting the motor 10 can make the stirring rod 12 rotate in the mixing tank 2, which can provide a mixing effect for the raw materials in the mixing tank 2. The mixed raw materials can be transported to the designated esterification kettle through the liquid pump 11, so that the production raw materials of DOTP can be evenly mixed in advance, which can improve the efficiency of the catalyst in dehydrating and esterifying the production raw materials of DOTP;

[0024] During this process, the sealing ring 8 is compressed by the gravity of the raw material tank 1 itself, thereby ensuring the sealing of the joint between the discharge pipe 4 and the feed pipe 5. The discharge pipe 4 is equipped with a valve, and the discharge pipe 4 can be more firmly connected to the feed pipe 5 through the guide rod 6, positioning seat 7 and fixing seat 9. When the raw material tank 1 is disassembled, a pulling force is applied to the raw material tank 1, so that the guide rod 6 can be pulled out at the positioning seat 7, so that the raw material tank 1 can be easily replaced.

[0025] Furthermore, the motor 10 may be a servo motor 10 .

[0026] Furthermore, a plurality of handles are provided on the outer wall of the raw material tank 1 , and the raw material tank 1 can be conveniently moved by the provided handles.

[0027] The raw material tank 1 lacks a limiting structure above the mixing tank 2, which will affect the stability of the raw material tank 1 when in use. Two clamping plates 13 are symmetrically arranged above the mixing tank 2, and the clamping plates 13 are fixed above the mixing tank 2 by support rods 14. The raw material tank 1 is located between the two clamping plates 13. The two clamping plates 13 can provide a limiting structure for the raw material tank 1 above the mixing tank 2, which can improve the stability of the raw material tank 1 when in use.

[0028] Furthermore, the two clamping plates 13 are both located at the bottom of the raw material tank 1 .

[0029] Furthermore, an anti-skid pad that contacts the raw material tank 1 is provided on the inner wall of the clamping plate 13. The anti-skid pad can increase the friction between the clamping plate 13 and the raw material tank 1, so that the raw material tank 1 can be placed more firmly.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An esterification kettle feeding device, comprising a mixing tank (2) and a bottom plate (3), wherein a plurality of feeding pipes (5) are provided at the upper end of the mixing tank (2), and a plurality of raw material tanks (1) are provided above the mixing tank (2), characterized in that: A feeding pipe is provided at the top end of the raw material tank (1), a discharge pipe (4) is provided at the bottom end of the raw material tank (1), a plurality of positioning seats (7) and a fixing seat (9) are provided on the circumference of the feeding pipe (5), the fixing seat (9) is fixed on the upper end of the mixing tank (2), a plurality of guide rods (6) are provided on the circumference of the discharge pipe (4) which penetrate the positioning seat (7) and are inserted into the fixing seat (9), a sealing ring (8) is provided at the top end of the feeding pipe (5), a stirring rod (12) is provided inside the mixing tank (2), a motor (10) is provided at one end of the mixing tank (2), the output end of the motor (10) is connected to the stirring rod (12), a liquid pump (11) is provided at the upper end of the bottom plate (3), and the input end of the liquid pump (11) is connected to the mixing tank (2) through a conduit.

2. The esterification kettle feeding device according to claim 1, characterized in that: The motor (10) is a servo motor.

3. The esterification kettle feeding device according to claim 2, characterized in that: A plurality of handles are provided on the outer wall of the raw material tank (1).

4. The esterification kettle feeding device according to claim 3, characterized in that: Two clamping plates (13) are symmetrically arranged above the mixing tank (2). The clamping plates (13) are fixed above the mixing tank (2) via supporting rods (14), and the raw material tank (1) is located between the two clamping plates (13).

5. The esterification kettle feeding device according to claim 4, characterized in that: The two clamping (13) plates are both located at the bottom of the raw material tank (1).

6. The esterification kettle feeding device according to claim 5, characterized in that: An anti-slip pad for contacting the raw material tank (1) is provided on the inner wall of the clamping plate (13).

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