Wet oxidation high-pressure reaction kettle

Abstract

The utility model discloses a high-pressure reaction kettle for wet oxidation. The high-pressure reaction kettle mainly comprises a reaction kettle body, a heating tank, a stirring device and a pressure control system, specifically, the reaction kettle body is designed to be of a cylindrical structure, the inner wall of the reaction kettle body is particularly coated with a corrosion-resistant material layer, and the material layer can effectively resist corrosive substances possibly generated in the chemical reaction process, so that the reaction kettle body is protected from being damaged; the heating tank is very elaborate in design, and the corrosion-resistant material layer is arranged on the inner wall of the reaction kettle body, so that corrosion of reactants to the kettle body can be effectively prevented, and the service life of equipment is prolonged; the heating tank covers the reaction kettle body and the feeding pipe, so that reactants can be quickly and uniformly heated, and the reaction efficiency is improved. The stirring device can ensure that reactants are fully mixed in the reaction kettle, so that the reaction uniformity and efficiency are improved; and the pressure sensor monitors the pressure in the reaction kettle in real time to ensure that the reaction process is carried out in a safe pressure range.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical reaction equipment technical field, and the specific field is a kind of wet oxidation high-pressure reaction kettle. BACKGROUND

[0002] In chemical industry, wet oxidation high-pressure reaction kettle is a common equipment, for carrying out chemical reaction under high temperature and high pressure. Traditional wet oxidation high-pressure reaction kettle usually includes reaction kettle body, heating system, stirring device and pressure control system. These reaction kettles in the use process, since reactant often has corrosive, therefore to the material selection and structure design of reaction kettle, higher requirement is proposed.

[0003] Traditional reaction kettle body is usually made of metal material, but these metal materials are easily corroded when facing strong acid, strong base or other corrosive reactants, thereby shortening the service life of equipment, and possibly affecting the stability and safety of reaction. In addition, traditional heating system cannot provide uniform heating, resulting in low reaction efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of wet oxidation high-pressure reaction kettle to solve the problems proposed in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of wet oxidation high-pressure reaction kettle, it is mainly by reaction kettle body, heating tank, stirring device and pressure control system composition;

[0006] Specifically, reaction kettle body is designed into a cylindrical structure, and a layer of corrosion-resistant material is coated on its inner wall. This layer of material can effectively resist corrosive substances that may be generated during chemical reaction, thereby protecting the reaction kettle body from damage.

[0007] The heating tank is carefully designed and installed on the outer wall of the reaction kettle body. It not only covers the feed pipe connected to the reaction kettle body, but also effectively heats the reactants added to the reaction kettle, ensuring that the reaction proceeds at an appropriate temperature, thereby improving reaction efficiency and product quality.

[0008] The stirring device consists of a stirring shaft and stirring blades installed on its shaft. The stirring shaft passes through the top sealing device of the reaction kettle body, ensuring that the stirring blades can be located inside the reaction kettle body, thereby achieving uniform stirring of the reactants, making the reaction more complete and uniform, and further improving the efficiency of the reaction and the quality of the product.

[0009] The pressure control system comprises a pressure sensor, a pressure regulating valve and a pressure pump, the pressure sensor is accurately installed in the cavity of the reactor body and used for monitoring the pressure change in the reactor in real time, and the pressure regulating valve and the pressure pump are connected with the cavity of the reactor body and jointly act to accurately regulate the pressure in the reactor to adapt to different reaction conditions.

[0010] A scraper is specially designed and installed at the bottom end of the cavity of the reactor body, and the scraper is driven by the corresponding drive motor to ensure that the reactants can be fully mixed and uniformly heated during the reaction.

[0011] In addition, an end cover is specially designed at the upper end of the reactor body, and the end cover is tightly connected with the reactor body through a sealing gasket to ensure that the whole reactor can maintain good sealing performance under high pressure.

[0012] The corrosion-resistant material layer is carefully selected, which can be a polytetrafluoroethylene layer or a ceramic material layer, and both of them have excellent corrosion resistance and can effectively protect the reactor body from being corroded by corrosive substances generated during the chemical reaction.

[0013] In the pressure control system, the pressure regulating valve is specially designed as a safety valve, which will automatically open and quickly release the pressure when the pressure in the reactor body exceeds the preset safety value, thereby ensuring the safe operation of the whole reactor and preventing safety accidents caused by excessive pressure.

[0014] Compared with the prior art, the beneficial effects of the present application are that the corrosion-resistant material layer is arranged on the inner wall of the reactor body, which can effectively prevent the corrosion of the reactor body by the reactants and prolong the service life of the equipment; the heating tank covers the reactor body and the feed pipe, which can quickly and uniformly heat the reactants and improve the reaction efficiency.

[0015] The stirring device can ensure that the reactants are fully mixed in the reactor, thereby improving the uniformity and efficiency of the reaction; the pressure sensor monitors the pressure in the reactor in real time to ensure that the reaction process is carried out within a safe pressure range.

[0016] The pressure regulating valve and the pressure pump can regulate the pressure in the reactor to ensure the stability and safety of the reaction process; when the pressure in the reactor exceeds the set value, the safety valve automatically opens to release the pressure, thereby preventing equipment damage or safety accidents caused by excessive pressure.

[0017] The scraper can reduce the residue of the reactants at the bottom of the reactor, thereby improving the utilization rate of the reactants; the sealing gasket is arranged between the end cover and the reactor body to ensure the sealing performance of the reactor and prevent the leakage of the reactants; the corrosion-resistant material layer can be made of polytetrafluoroethylene or ceramic material, and the appropriate corrosion-resistant material can be selected according to the characteristics of different reactants.

[0018] The overall design makes the reaction kettle compact in structure, saves space, and facilitates installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is Figure 1 It is an enlarged structural schematic diagram of position A.

[0021] In the figure: 1, reaction kettle body; 2, heating tank; 3, corrosion-resistant material layer; 4, stirring shaft; 5, stirring blade; 6, pressure sensor; 7, pressure regulating valve; 8, pressure pump; 9, scraper plate; 10, end cover; 11, sealing gasket. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-2 The utility model provides a technical scheme: relate to a kind of wet oxidation high-pressure reaction kettle, it is mainly by reaction kettle body 1, heating tank 2, stirring device and pressure control system composition;

[0024] Specifically, reaction kettle body 1 is designed as a cylindrical structure, and a corrosion-resistant material layer 3 is coated on the inner wall, which can effectively resist corrosive substances that may be generated during chemical reactions, thereby protecting reaction kettle body 1 from damage;

[0025] The heating tank 2 is designed very carefully and is installed on the outer wall of the reaction kettle body 1. It not only covers the feed pipe connected to the reaction kettle body 1, but also effectively heats the reactants added to the reaction kettle, ensuring that the reaction proceeds at an appropriate temperature, thereby improving reaction efficiency and product quality.

[0026] The stirring device is composed of a stirring shaft 4 and stirring blades 5 installed on the shaft. The stirring shaft 4 passes through the top sealing device of the reaction kettle body, ensuring that the stirring blades 5 are located inside the reaction kettle body 1, thereby achieving uniform stirring of the reactants, making the reaction more complete and uniform, and further improving reaction efficiency and product quality.

[0027] The pressure control system comprises a pressure sensor 6, a pressure regulating valve 7 and a pressure pump 8, wherein the pressure sensor 6 is accurately installed in the cavity of the reaction kettle body 1 for monitoring the pressure change in the reaction kettle in real time, and the pressure regulating valve 7 and the pressure pump 8 are connected with the cavity of the reaction kettle body 1 and jointly act to accurately regulate the pressure in the reaction kettle to adapt to different reaction conditions.

[0028] A scraper 9 is specially designed and installed at the bottom end of the cavity of the reaction kettle body 1, and the scraper 9 is driven by the corresponding drive motor as the stirring shaft 4 to ensure that the reactants can be fully mixed and uniformly heated during the reaction.

[0029] In addition, an end cover 10 is specially designed at the upper end of the reaction kettle body 1, and the end cover 10 is tightly connected with the reaction kettle body 1 through a sealing gasket 11 to ensure that the whole reaction kettle can maintain good sealing performance under high pressure environment.

[0030] The corrosion-resistant material layer 3 is carefully selected, which can be a polytetrafluoroethylene layer or a ceramic material layer, and both of the two materials have excellent corrosion resistance and can effectively protect the reaction kettle body 1 from being corroded by corrosive substances generated during the chemical reaction.

[0031] In the pressure control system, the pressure regulating valve 7 is specially designed as a safety valve, which will automatically open and rapidly release the pressure when the pressure in the reaction kettle body 1 exceeds the preset safety value, thereby ensuring the safe operation of the whole reaction kettle body 1 and preventing safety accidents caused by excessive pressure.

[0032] Working principle: when working, the raw materials that need to be subjected to wet oxidation reaction are added to the reaction kettle body 1.

[0033] The outer wall of the reaction kettle body 1 is heated by the heating tank 2, so as to heat the reactants in the reaction kettle to the required temperature for reaction.

[0034] The stirring shaft 4 extends into the reaction kettle body 1 through the top sealing device, and the stirring blade 5 rotates in the reaction kettle to ensure that the reactants are uniformly mixed and the reaction is promoted.

[0035] The pressure sensor 6 monitors the pressure in the reaction kettle in real time, and the pressure regulating valve 7 and the pressure pump 8 adjust the pressure in the reaction kettle according to the feedback of the pressure sensor. If the pressure exceeds the set value, the safety valve pressure regulating valve will automatically open to release the pressure, so as to ensure the safe operation of the reaction kettle.

[0036] The bottom end of the cavity of the reaction kettle body 1 is provided with a scraper 9, which is driven by the drive motor together with the stirring shaft 4, which helps to scrape the reactants at the bottom of the reaction kettle, further promoting the mixing and reaction of the reactants.

[0037] The upper end of the reaction kettle body 1 is provided with an end cover 10, and the end cover and the reaction kettle body are sealed by a sealing gasket 11 to ensure that the reaction kettle remains sealed in a high-pressure environment.

[0038] The inner wall of the reaction kettle body 1 is provided with a corrosion-resistant material layer 3, such as a polytetrafluoroethylene layer or a ceramic material layer, to protect the reaction kettle from corrosion by the reactants.

[0039] The entire reaction process is carried out in a high-pressure environment to facilitate the completion of the oxidation reaction. By precisely controlling the temperature, pressure and stirring, the wet oxidation reaction can be effectively carried out.

[0040] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means of bolts, rivets and welding in the prior art. The mechanical parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection mode in the prior art, which will not be described in detail here.

[0042] Although embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wet oxidation high pressure reactor characterized by: Including the reaction kettle body (1), heating tank (2), stirring device and pressure control system; The reaction kettle body (1) is a cylindrical structure, and the inner wall is provided with a corrosion-resistant material layer (3); The heating tank (2) is arranged on the outer wall of the reaction kettle body, and covers the feed pipe connected with the reaction kettle body (1), which is used for heating the reactants added into the reaction kettle; The stirring device includes a stirring shaft (4) and a stirring blade (5) arranged on the shaft rod, the stirring shaft (4) penetrates through the top sealing device of the reaction kettle body, and the stirring blade (5) is located in the reaction kettle body (1); The pressure control system includes a pressure sensor (6), a pressure regulating valve (7) and a pressure pump (8), the pressure sensor (6) is arranged in the cavity of the reaction kettle body (1), which is used for real-time monitoring of the pressure in the reaction kettle, and the pressure regulating valve (7) and the pressure pump (8) are both connected with the inner cavity of the reaction kettle body (1), which is used for adjusting the pressure in the reaction kettle.

2. The wet oxidation high pressure reactor according to claim 1, characterized in that: The bottom end of the cavity of the reaction kettle body (1) is provided with a scraper (9), and the scraper (9) and the stirring shaft (4) are both driven by the driving motor on the corresponding side.

3. The wet oxidation high pressure reactor of claim 1, wherein: The upper end of the reaction kettle body (1) is provided with an end cover (10), and a sealing gasket (11) is arranged between the end cover (10) and the reaction kettle body (1).

4. The wet oxidation high pressure reactor of claim 1, wherein: The corrosion-resistant material layer (3) is a polytetrafluoroethylene layer or a ceramic material layer.

5. The wet oxidation high pressure reactor of claim 1, wherein: The pressure regulating valve (7) is a safety valve, when the pressure in the reaction kettle body (1) exceeds the set value, the pressure regulating valve (7) is automatically opened to release the pressure, so as to ensure the safe operation of the reaction kettle body (1).

Images