Ethylene glycol stirring reaction kettle

Abstract

The invention relates to ethylene glycol production equipment, in particular to an ethylene glycol stirring reaction kettle. An ethylene glycol stirring reaction kettle comprises a kettle body, a kettle cover is fixedly installed at the upper end of the kettle body through a flange plate, a gear motor is installed at the upper end of the kettle cover through a motor base, the gear motor is fixedly connected with a stirring shaft, the stirring shaft stretches into the kettle body, a plurality of sets of paddles are arranged on the stirring shaft, and a discharging valve is arranged at the bottom of the kettle body. A feeding hole is also formed in the side wall of the kettle body. According to the ethylene glycol stirring reaction kettle, a stable heating mechanism is provided for the kettle core in the kettle body, high-temperature gas for heating circularly enters and exits from the heating cavity, the constant reaction temperature can be kept, it is ensured that the temperature in the whole reaction kettle is constant, and meanwhile the stirring mechanism is assisted, so that the reaction efficiency in the reaction kettle is improved.

Description

Technical Field

[0001] The invention relates to ethylene glycol production equipment, in particular to an ethylene glycol stirring reaction kettle. Background Art

[0002] Ethylene glycol is a colorless, odorless, sweet-tasting viscous liquid with a certain chemical stability and is miscible with water and acetone.

[0003] Ethylene glycol reactor is a key equipment for ethylene glycol related reactions in chemical production. The following is a detailed summary of ethylene glycol reactor: Equipment type: There are many types of ethylene glycol reactors, such as the esterification reactor in the polyester horizontal esterification reaction system, which is specially used for the esterification reaction of ethylene glycol. In addition, there are alkylation synthesis reactors, which are designed to improve mixing efficiency and reaction speed.

[0004] Structural features: Ethylene glycol reactors usually include reactor body, stirring device, heating device, etc. Some reactors are also equipped with gas phase pipelines, recycled EG injection ports and auxiliary material injection ports to meet the needs of different reactions.

[0005] Application: Ethylene glycol reactors are widely used in the production and processing of ethylene glycol. For example, in the technology of catalytic conversion of biomass to ethylene glycol, specially designed reactors are used to achieve efficient and stable ethylene glycol production.

[0006] This requires a dedicated reactor for the production of ethylene glycol.

[0007] In view of the above-mentioned defects, the designers actively carried out research and innovation in order to create an ethylene glycol stirred reactor to make it more valuable for industrial use. Summary of the invention

[0008] To solve the above technical problems, the purpose of the present invention is to provide an ethylene glycol stirred reactor.

[0009] The invention discloses an ethylene glycol stirring reactor, comprising a reactor body, a reactor cover fixedly mounted on the upper end of the reactor body via a flange, a reduction motor mounted on the upper end of the reactor cover via a motor seat, the reduction motor fixedly connected to a stirring shaft, the stirring shaft extending into the reactor body, a plurality of blades being arranged on the stirring shaft, a discharge valve being arranged at the bottom of the reactor body, and a feed port being arranged on the side wall of the reactor body.

[0010] The ethylene glycol stirred reactor consists of a reactor body and a reactor cover. The reduction motor on the reactor cover is used to drive the stirring shaft to rotate. The stirring shaft drives the material to rotate in the reactor body to improve the reaction efficiency. The feed port on the side wall of the reactor body is used to inject liquid raw materials.

[0011] Furthermore, an insulation layer is provided on the inner wall of the kettle body, the inner side of the insulation layer is the kettle core, a heating layer is fixed on the outer wall of the kettle core, the heating layer surrounds the side wall of the kettle core, and the gap between the heating layer and the kettle core forms a heating cavity.

[0012] The heat-insulating layer can maintain the temperature inside the kettle body, and the heating layer is wound around the kettle core, which can continuously heat the kettle core. The heating cavity formed between the heating layer and the kettle core is a channel for the heat source to flow.

[0013] Furthermore, an air inlet and an air outlet are installed on the heating layer, and the air inlet and the air outlet extend out of the thermal insulation layer.

[0014] The air inlet is connected to the high-temperature gas, and the gas enters the heating chamber. The air outlet is used to discharge the gas to form an airflow, which can provide stable heating and ensure heating efficiency.

[0015] Furthermore, the height of the air inlet is lower than that of the air outlet.

[0016] The position of the air inlet is low, which facilitates the upward movement of hot air flow and conforms to the physical principles of gas flow.

[0017] Furthermore, a thermometer extending into the heating layer is installed on the kettle body.

[0018] The thermometer configured in the heating layer is used to monitor the temperature of the heat source to ensure a stable reaction temperature.

[0019] Furthermore, the interior of the kettle cover is covered with an upper insulation layer.

[0020] The upper insulation layer of the kettle cover can provide insulation and meet the insulation needs.

[0021] Furthermore, a plurality of upper feed ports are installed on the kettle cover.

[0022] The upper feed port on the cover is also used for adding raw materials, and the upper and lower feed ports are used for feeding, which improves the feeding efficiency and facilitates the mixing of raw materials.

[0023] Furthermore, a plurality of mounting supports are arranged on the side wall of the kettle body.

[0024] The mounting bracket on the kettle body is butted against the support frame for easy installation.

[0025] Through the above scheme, the present invention has at least the following advantages: this ethylene glycol stirred reactor provides a stable heating mechanism for the reactor core inside the reactor body, and the high-temperature gas used for heating circulates in and out of the heating chamber, which can maintain a constant reaction temperature and ensure that the temperature inside the entire reactor is constant. At the same time, it assists the stirring mechanism to improve the reaction efficiency in the reactor.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 The present invention Figure 1 Section Figure 1 ; Figure 4 The present invention Figure 1 Section Figure 2 .

[0029] In the figure, 1, kettle body, 2, kettle cover, 3, motor seat, 4, reduction motor, 5, stirring shaft, 6, paddle, 7, discharge valve, 8, feed port, 9, insulation layer, 10, kettle core, 11, heating layer, 12, heating chamber, 13, air inlet, 14, air outlet, 15, upper insulation layer, 16, upper feed port, 17, thermometer, and 18, mounting support. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In this ethylene glycol stirring reactor, a reactor body 1 and a reactor cover 2 are fixedly installed via a flange plate, a reduction motor 4 is installed at the upper end of the cover 2 via a motor seat 3, the output shaft of the reduction motor 4 is fixedly connected to a stirring shaft 5, the stirring shaft 5 extends into the reactor body 1, and a plurality of paddles 6 are arranged on the stirring shaft 5. When the reduction motor 4 is working, the paddles 6 can be driven to rotate, so that the materials placed in the reactor body 1 are stirred, the mixing efficiency between the materials is increased, and the reaction speed is improved. A discharge valve 7 installed via a flange at the bottom of the reactor body 1 is used for discharging finished products, and a feed port 8 on the side wall of the reactor body 1 is used for injecting raw materials.

[0032] See also Figure 3 and Figure 4The kettle body 1 includes a heat preservation layer 9, a heating layer 11 and a kettle core 10 wrapped by the heat preservation layer. The heating layer 11 is a ring-shaped structure, wrapped around the outside of the kettle core 10. A heating chamber 12 is formed between the heating layer 11 and the kettle core 10. The heat source enters the heating chamber 12 and conducts heat through the kettle core 10 to heat the inside of the kettle body 1. The heat preservation layer 9 is used for heat preservation to prevent the temperature loss of the kettle body 1 and ensure the constant reaction temperature.

[0033] The air inlet 13 and the air outlet 14 on the heating layer 11 are installed through pipelines. The air inlet 13 and the air outlet 14 extend out of the insulation layer 9. There are docking flanges at the ends of the air inlet 13 and the air outlet 14. The high-temperature gas used for heating enters from the air inlet 13 and is discharged from the air outlet 14, forming a heat cycle to achieve heating operation.

[0034] The relative height of the air inlet 13 is relatively low because the high-temperature gas has the property of flowing upward, which facilitates the flow of the gas. The gas is then discharged from the air outlet to form a gas circulation and complete the heating operation.

[0035] The kettle body 1 also has a thermometer 17 extending into the heating layer 11. The thermometer 17 reads the temperature in the heating layer 11 for workers to observe and prevent the temperature in the kettle body 1 from being too high and causing production accidents.

[0036] The upper insulation layer 15 covering the kettle cover 2 also serves the purpose of heat preservation, thereby improving the heat preservation effect.

[0037] When in use, a variety of raw materials need to be added into the kettle body 1, so the multiple upper feed ports 16 can be connected to a variety of raw material pipelines to complete the filling of raw materials.

[0038] See also Figure 1 The mounting support 18 on the side wall of the kettle body 1 is used to dock and fix with the mounting bracket, so that the device is floating, which is convenient for the discharge valve 7 at the lower end of the kettle body 1 to dock with the discharge pipeline, and convenient for the discharge of finished products.

[0039] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ethylene glycol stirred reactor, comprising a reactor body (1), characterized in that: A kettle cover (2) is fixedly mounted on the upper end of the kettle body (1) via a flange plate. A reduction motor (4) is mounted on the upper end of the kettle cover (2) via a motor base (3). The reduction motor (4) is fixedly connected to a stirring shaft (5). The stirring shaft (5) extends into the kettle body (1). A plurality of groups of paddles (6) are arranged on the stirring shaft (5). A discharge valve (7) is arranged at the bottom of the kettle body (1). A feed port (8) is also arranged on the side wall of the kettle body (1).

2. The ethylene glycol stirred reactor according to claim 1, characterized in that: The inner wall of the kettle body (1) is provided with an insulation layer (9), the inner side of the insulation layer (9) is a kettle core (10), a heating layer (11) is fixed on the outer wall of the kettle core (10), the heating layer (11) surrounds the side wall of the kettle core (10), and a gap between the heating layer (11) and the kettle core (10) forms a heating chamber (12).

3. The ethylene glycol stirred reactor according to claim 2, characterized in that: An air inlet (13) and an air outlet (14) are installed on the heating layer (11), and the air inlet (13) and the air outlet (14) extend out of the thermal insulation layer (9).

4. The ethylene glycol stirred reactor according to claim 3, characterized in that: The height of the air inlet (13) is lower than that of the air outlet (14).

5. The ethylene glycol stirred reactor according to claim 4, characterized in that: A thermometer (17) is mounted on the kettle body (1) and extends into the heating layer (11).

6. The ethylene glycol stirred reactor according to claim 5, characterized in that: The interior of the kettle cover (2) is covered with an upper thermal insulation layer (15).

7. The ethylene glycol stirred reactor according to claim 6, characterized in that: The kettle cover (2) is provided with a plurality of penetrating upper feed openings (16).

8. The ethylene glycol stirred reactor according to claim 7, characterized in that: A plurality of mounting supports (18) are provided on the side wall of the kettle body (1).

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