A reaction kettle for fine chemical preparation

Abstract

The utility model belongs to chemical preparation technical field especially relates to a reaction kettle for fine chemical preparation, including reaction kettle and the support frame of fixed installation in reaction kettle bottom, the inside of reaction kettle is provided with stirring device, the stirring device includes mixing mechanism and feeding mechanism, the mixing mechanism includes motor, pivot, crosspiece, stirring axle, rotary stand and dispersion vane. This reaction kettle for fine chemical preparation, the outer surface of stirring vane is connected with the inner wall of reaction kettle and slides, can therefore scrape the inner wall of reaction kettle in the process of stirring, reduce the raw material of adhesion in the inner wall of reaction kettle, reduced the cleaning difficulty after preparation, through stirring vane, mixing vane, rotary stand and dispersion vane's simultaneous stirring mixing simultaneously, strengthened the uniformity of stirring mixing, can simultaneously carry out the stirring of many directions in the inside of reaction kettle.

Description

Technical Field

[0001] This utility model relates to the field of chemical preparation technology, specifically a reaction vessel for the preparation of fine chemicals. Background Technology

[0002] In the preparation of fine chemicals, the reaction vessel is one of the key pieces of equipment. Traditional reaction vessels have revealed numerous problems in meeting the demands of fine chemical preparation. Uniform stirring is another prominent issue. The reaction systems of fine chemicals have complex compositions, requiring stringent stirring performance.

[0003] Traditional reactor stirring devices are prone to creating dead zones during stirring, leading to uneven mixing of materials. In reactions requiring precise material ratios, uneven stirring can cause localized excessively high or low concentrations of materials, affecting the consistency and stability of the reaction and ultimately impacting the uniformity of product quality. Utility Model Content

[0004] The purpose of this invention is to provide a reaction vessel for the preparation of fine chemicals, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reaction vessel for the preparation of fine chemicals, comprising a reaction vessel and a support frame fixedly installed at the bottom of the reaction vessel, wherein a stirring device is provided inside the reaction vessel;

[0006] The stirring device includes a mixing mechanism and a feeding mechanism. A cover plate is fixedly installed on the top of the reactor, and the feeding mechanism is located on the top of the cover plate.

[0007] The mixing mechanism includes a motor, a rotating shaft, a crossbar, a stirring shaft, a rotating frame, and dispersing blades. The motor is fixedly installed at the top center of the cover plate. The rotating shaft is connected to the output end of the motor. The crossbar is fixedly connected to the outer surface of the rotating shaft near the top. The stirring shaft is fixedly connected to the bottom of the crossbar. The rotating frame is fixedly connected to the middle of the outer surface of the rotating shaft. The dispersing blades are fixedly connected to the inner wall of the rotating frame.

[0008] Preferably, a through hole is provided at the center of the upper surface of the cover plate, and a ball bearing is installed on the inner wall of the through hole through a bearing seat. The rotating shaft passes through the center of the ball bearing, and the rotating frame is evenly distributed on the outer surface of the rotating shaft.

[0009] Preferably, a stirring blade is fixedly connected to the outer surface of the stirring shaft. The stirring blade is arc-shaped, and both ends of the stirring blade are fixedly connected to the outer surface of the stirring shaft.

[0010] Preferably, mixing blades are fixedly connected to the outer surface of the rotating shaft, and the bottom of the stirring shaft is fixedly connected to the outer surface of the rotating shaft by a diagonal rod.

[0011] Preferably, the feeding mechanism includes a mounting plate, a motor, a lead screw, a bearing housing, a lead screw nut, a lifting frame, a feeding pipe, and a valve. The mounting plate is fixedly installed on the top right side of the cover plate, the motor is fixedly installed on the bottom left side of the mounting plate, the lead screw is connected to the output end of the motor, the bearing housing is fixedly installed on the top left side of the mounting plate, the lead screw nut is connected to the outer surface of the lead screw, the lifting frame is fixedly connected to the left side of the lead screw nut, the feeding pipe is disposed inside the lifting frame, and the valve is installed at the bottom end of the feeding pipe.

[0012] Preferably, a ball bearing is installed inside the bearing housing, the outer surface of the lead screw is connected to the inner ring of the ball bearing, the lifting frame has an installation groove inside, and the feed pipe is fixedly installed inside the installation groove.

[0013] Preferably, a gas supply pipe is fixedly connected to the left side of the reactor, a control box is fixedly installed at the bottom front of the reactor, a discharge pipe is fixedly connected to the center bottom of the reactor, and a sampling pipe is fixedly connected to the bottom right side of the reactor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this reactor for the preparation of fine chemicals, the outer surface of the stirring blades is slidably connected to the inner wall of the reactor. Therefore, the inner wall of the reactor can be scraped during the stirring process, reducing the amount of raw materials adhering to the inner wall of the reactor and reducing the difficulty of cleaning after preparation. At the same time, the uniformity of stirring and mixing is enhanced by the simultaneous stirring of the stirring blades, mixing blades, rotating frame and dispersing blades, and the reactor can be stirred in multiple directions at the same time.

[0016] 2. In this reactor for the preparation of fine chemicals, the motor is started and the screw nut drives the lifting frame to rise and fall, so that the feed pipe can be extended into the interior of the reactor. At this time, the valve is opened to reduce the height of the raw material descent, thereby reducing the height difference between the feed pipe and the bottom of the reactor during the feeding process and reducing the degree of dust dispersion from the reactor during the feeding process. Attached Figure Description

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

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

[0019] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model.

[0021] In the diagram: 1. Reactor; 2. Support frame; 3. Discharge pipe; 4. Gas supply pipe; 5. Control box; 6. Sampling pipe; 7. Cover plate; 701. Mounting plate; 702. Motor; 703. Lead screw; 704. Bearing seat; 705. Lead screw nut; 706. Lifting frame; 707. Feed pipe; 708. Valve; 8. Motor; 801. Rotating shaft; 802. Crossbar; 803. Stirring shaft; 804. Stirring blades; 805. Mixing blades; 806. Rotating frame; 807. Dispersing blades. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: To address the problem of inconvenient raw material addition in existing reaction vessels used for fine chemical preparation, please refer to... Figures 1-4 This utility model provides a technical solution:

[0024] A reaction vessel for preparing fine chemicals includes a reaction vessel 1 and a support frame 2 fixedly installed at the bottom of the reaction vessel 1. A gas supply pipe 4 is fixedly connected to the left side of the reaction vessel 1. A control box 5 is fixedly installed at the bottom front of the reaction vessel 1. A discharge pipe 3 is fixedly connected to the center of the bottom of the reaction vessel 1. A discharge valve is installed at the end of the discharge pipe 3 away from the reaction vessel 1. A sampling pipe 6 is fixedly connected to the bottom right side of the reaction vessel 1. A stirring device is installed inside the reaction vessel 1.

[0025] The stirring device includes a mixing mechanism and a feeding mechanism. A cover plate 7 is fixedly installed on the top of the reactor 1, and the feeding mechanism is located on the top of the cover plate 7.

[0026] The mixing mechanism includes a motor 8, a rotating shaft 801, a crossbar 802, a stirring shaft 803, a rotating frame 806, and a dispersing blade 807. The motor 8 is fixedly installed at the top center of the cover plate 7. The motor 8 is a GV32 type geared motor. The rotating shaft 801 is connected to the output end of the motor 8. The crossbar 802 is fixedly connected to the outer surface of the rotating shaft 801 near the top. The stirring shaft 803 is fixedly connected to the bottom of the crossbar 802. The rotating frame 806 is fixedly connected to the middle of the outer surface of the rotating shaft 801. The dispersing blade 807 is fixedly connected to the inner wall of the rotating frame 806.

[0027] A through hole is provided at the center of the upper surface of the cover plate 7. A ball bearing is installed on the inner wall of the through hole through a bearing seat. The rotating shaft 801 passes through the center of the ball bearing, and the rotating frame 806 is evenly distributed on the outer surface of the rotating shaft 801.

[0028] The feeding mechanism includes a mounting plate 701, a motor 702, a lead screw 703, a bearing housing 704, a lead screw nut 705, a lifting frame 706, a feeding pipe 707, and a valve 708. The mounting plate 701 is fixedly installed on the top right side of the cover plate 7. The motor 702 is fixedly installed on the bottom left side of the mounting plate 701. The motor 702 is an N20 geared motor. The lead screw 703 is connected to the output end of the motor 702. The bearing housing 704 is fixedly installed on the top left side of the mounting plate 701. The lead screw nut 705 is threaded to the outer surface of the lead screw 703. The lifting frame 706 is fixedly connected to the left side of the lead screw nut 705. The feeding pipe 707 is located inside the lifting frame 706. The valve 708 is installed at the bottom end of the feeding pipe 707.

[0029] During the feeding process, once the weight of various raw materials reaches the configured values, the motor 702 is started. The output shaft of the motor 702 drives the lead screw 703 to rotate. The lead screw 703 drives the lead screw nut 705, which is threaded to it, to rise and fall on its surface. The lead screw nut 705 drives the lifting frame 706 to rise and fall, so that the feed pipe 707 can extend into the interior of the reactor 1. At this time, the valve 708 is opened to reduce the height of the raw material descent, thereby reducing the height difference between the feed pipe 707 and the bottom of the reactor 1 during the feeding process and reducing the degree of dust dispersion from the reactor 1 during the feeding process.

[0030] The bearing housing 704 is equipped with a ball bearing. The outer surface of the lead screw 703 is connected to the inner ring of the ball bearing. The lifting frame 706 has an installation groove. The feed pipe 707 is fixedly installed inside the installation groove. A weighing sensor, model Z6FC3, is installed at the bottom of the feed pipe 707.

[0031] Example 2: In the process of preparing fine chemicals, dead zones of stirring are prone to occur, resulting in uneven mixing of materials. In this application, stirring blades 804 are fixedly connected to the outer surface of stirring shaft 803. The stirring blades 804 are arc-shaped, and both ends of the stirring blades 804 are fixedly connected to the outer surface of stirring shaft 803. Mixing blades 805 are fixedly connected to the outer surface of rotating shaft 801. The bottom of stirring shaft 803 is fixedly connected to the outer surface of rotating shaft 801 through a diagonal rod. The outer surface of stirring blades 804 is slidably connected to the inner wall of reaction vessel 1. The arc directions of the two stirring blades 804 are opposite, so that the inner wall of reaction vessel 1 can be scraped in all directions during rotation.

[0032] During the stirring process, the rotation of the rotating shaft 801 will drive the crossbar 801 connected to it to rotate. The crossbar 801 will drive the stirring shaft 803 to rotate during the rotation. The rotation of the stirring shaft 803 will drive the stirring blades 804 connected to it to rotate. The outer surface of the stirring blades 804 is slidably connected to the inner wall of the reactor 1. Therefore, the inner wall of the reactor 1 can be scraped during the stirring process, reducing the raw materials adhering to the inner wall of the reactor 1 and reducing the difficulty of cleaning after preparation. At the same time, the stirring blades 804, mixing blades 805, rotating frame 806 and dispersing blades 807 simultaneously stir and mix, enhancing the uniformity of stirring and mixing. The reactor 1 can be stirred in multiple directions at the same time.

[0033] Working principle: When preparing fine chemicals, various prepared raw materials are first put into the feed pipe 707. When the weighing sensor shows that the value reaches the required weight value, the valve 708 is opened to allow the raw materials to enter the interior of the reaction vessel 1. Then, the motor 8 is started. The output shaft of the motor 8 drives the rotating shaft 801 to rotate. The rotating shaft 801 drives the crossbar 801 and the rotating frame 806 connected to it to rotate. The various raw materials are mixed and stirred by the rotation of the crossbar 801 and the rotating frame 806. After stirring for a certain period of time, the prepared sample is sampled and observed through the sampling pipe 6. If the requirements of fine chemicals are met, the discharge valve is opened and the prepared fine chemicals are taken out through the discharge pipe 3.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A reaction vessel for preparing fine chemicals, comprising a reaction vessel (1) and a support frame (2) fixedly installed at the bottom of the reaction vessel (1), characterized in that: The reactor (1) is equipped with a stirring device inside; The stirring device includes a mixing mechanism and a feeding mechanism. A cover plate (7) is fixedly installed on the top of the reactor (1), and the feeding mechanism is located on the top of the cover plate (7). The mixing mechanism includes a motor (8), a rotating shaft (801), a crossbar (802), a stirring shaft (803), a rotating frame (806), and a dispersing blade (807). The motor (8) is fixedly installed at the top center of the cover plate (7). The rotating shaft (801) is connected to the output end of the motor (8). The crossbar (802) is fixedly connected to the outer surface of the rotating shaft (801) near the top. The stirring shaft (803) is fixedly connected to the bottom of the crossbar (802). The rotating frame (806) is fixedly connected to the middle of the outer surface of the rotating shaft (801). The dispersing blade (807) is fixedly connected to the inner wall of the rotating frame (806).

2. The reaction vessel for preparing fine chemicals according to claim 1, characterized in that: The upper surface of the cover plate (7) has a through hole at the center. A ball bearing is installed on the inner wall of the through hole through a bearing seat. The rotating shaft (801) passes through the center of the ball bearing. The rotating frame (806) is evenly distributed on the outer surface of the rotating shaft (801).

3. The reaction vessel for preparing fine chemicals according to claim 1, characterized in that: The stirring blade (804) is fixedly connected to the outer surface of the stirring shaft (803). The stirring blade (804) is arc-shaped, and both ends of the stirring blade (804) are fixedly connected to the outer surface of the stirring shaft (803).

4. The reaction vessel for preparing fine chemicals according to claim 1, characterized in that: The outer surface of the rotating shaft (801) is fixedly connected to a mixing blade (805), and the bottom of the stirring shaft (803) is fixedly connected to the outer surface of the rotating shaft (801) by a diagonal rod.

5. The reaction vessel for preparing fine chemicals according to claim 1, characterized in that: The feeding mechanism includes a mounting plate (701), a motor (702), a lead screw (703), a bearing seat (704), a lead screw nut (705), a lifting frame (706), a feeding pipe (707), and a valve (708). The mounting plate (701) is fixedly installed on the top right side of the cover plate (7). The motor (702) is fixedly installed on the bottom left side of the mounting plate (701). The lead screw (703) is connected to the output end of the motor (702). The bearing seat (704) is fixedly installed on the top left side of the mounting plate (701). The lead screw nut (705) is connected to the outer surface of the lead screw (703). The lifting frame (706) is fixedly connected to the left side of the lead screw nut (705). The feeding pipe (707) is located inside the lifting frame (706). The valve (708) is installed at the bottom end of the feeding pipe (707).

6. The reaction vessel for preparing fine chemicals according to claim 5, characterized in that: The bearing housing (704) is equipped with a ball bearing, the outer surface of the lead screw (703) is connected to the inner ring of the ball bearing, the lifting frame (706) has an installation groove inside, and the feed pipe (707) is fixedly installed inside the installation groove.

7. The reaction vessel for preparing fine chemicals according to claim 1, characterized in that: A gas supply pipe (4) is fixedly connected to the left side of the reactor (1), a control box (5) is fixedly installed at the bottom front of the reactor (1), a discharge pipe (3) is fixedly connected to the center bottom of the reactor (1), and a sampling pipe (6) is fixedly connected to the bottom right side of the reactor (1).

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