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Shandong LiHancheng Machinery Equipment Co., Ltd

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Used 1000L 2000L mechanical seal enamel reaction kettle

NegotiableUpdate on 01/05

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Nature of the Manufacturer: Producers

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Place of Origin

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Overview

The general understanding of a second-hand 1000 liter and 2000 liter mechanical sealed enamel reaction kettle is a stainless steel container with physical or chemical reactions. The structure design and parameter configuration of the container are carried out according to different process conditions. The design conditions, process, inspection, manufacturing, and acceptance need to be based on relevant technical standards to achieve the heating, evaporation, cooling, and low-speed mixing reaction functions required by the process. Pressure vessels must comply with the GB150 {Steel Pressure Vessels} standard, and atmospheric pressure vessels must comply with the NB/T47003.1-2009 {Steel Welded Atmospheric Pressure Vessels} standard. along with it

Product Details

　　Used 1000L 2000L mechanical seal enamel reaction kettle Used 1000L 2000L mechanical seal enamel reaction kettle

The broad understanding of a reaction kettle is a stainless steel container that undergoes physical or chemical reactions, and the structural design and parameters of the container are determined according to different process conditions and requirements

Reaction kettle

Configuration, design conditions, processes, inspection, manufacturing, and acceptance must be based on relevant technical standards to achieve the heating, evaporation, cooling, and low-speed mixing reaction functions required by the process. Pressure vessels must comply with the GB150 {Steel Pressure Vessels} standard, and atmospheric pressure vessels must comply with the NB/T47003.1-2009 {Steel Welded Atmospheric Pressure Vessels} standard. The pressure requirements during the reaction process also vary in terms of the design requirements for the container. Production must strictly follow the corresponding standards for processing, testing, and trial operation. Stainless steel reaction vessels vary according to different production processes, operating conditions, etc. The design structure and parameters of reaction vessels are different, that is, the structural style of reaction vessels is different, and they belong to non-standard container equipment.

A reaction vessel is a comprehensive reaction vessel, and the design of the structure, function, and configuration accessories of the reaction vessel is based on the reaction conditions. From the beginning of the feeding reaction discharging process, the pre-set reaction steps can be completed with a high degree of automation, and important parameters such as temperature, pressure, mechanical control (stirring, blowing, etc.), and reactant/product concentration during the reaction process can be strictly regulated. Its structure generally consists of a kettle body, transmission device, stirring device, heating device, cooling device, and sealing device. Corresponding auxiliary equipment: fractionation column, condenser, water separator, collection tank, filter, etc.

The materials of reaction vessels generally include carbon manganese steel, stainless steel, zirconium, nickel based (Hastelloy, Monel) alloys, and other composite materials. The reaction vessel can be made of stainless steel materials such as SUS304 and SUS316L. Blenders come in anchor, frame, paddle, turbine, scraper, and combination types. The rotating mechanism can use cycloidal pinwheel reducers, continuously variable speed reducers, or variable frequency speed reducers to meet the special reaction requirements of various materials. The sealing device can adopt sealing structures such as mechanical seals and packing seals. Heating and cooling can be achieved through structures such as jackets, half tubes, coils, and Miller plates. Heating methods include steam, electric heating, and thermal oil to meet the process requirements of different working environments such as acid resistance, high temperature resistance, wear resistance, and corrosion resistance. And it can be designed and manufactured according to the user's process requirements.

classification

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1. According to the heating/cooling methods, it can be divided into electric heating, hot water heating, thermal oil circulation heating, far-infrared heating, external (internal) coil heating, jacket cooling, and kettle coil cooling. The choice of heating method is mainly related to the heating/cooling temperature required for the chemical reaction, as well as the amount of heat required.

2. According to the material of the kettle body, it can be divided into carbon steel reaction kettle, stainless steel reaction kettle, enamel reaction kettle (enamel reaction kettle), and steel lined reaction kettle.

2.1 Carbon Steel Reactor

Scope of application: Environments that do not contain corrosive liquids, such as certain oil processing.

2.2. Stainless Steel Reactor (KCFD Series High Pressure Reactor)

Stainless Steel Reactor Stainless Steel Reactor

1. Heating structure type

Electric heating type, jacket type, outer half tube type, inner disc tube type, with a volume of 0.01m3 to 45m3

2. Material

Carbon steel, stainless steel, high temperature resistant stainless steel, strong acid and alkali resistant stainless steel, enamel or PP materials, etc.

3. Mixing type

Slant type, anchor type, frame type, propulsion type, and single (double) spiral type, and other types of blades can be designed and manufactured according to customer requirements.

Scope of application: Suitable for high-temperature and high-pressure chemical reaction tests in departments such as petroleum, chemical, pharmaceutical, metallurgical, scientific research, and colleges and universities. It is used to complete processes such as hydrolysis, neutralization, crystallization, distillation, evaporation, storage, hydrogenation, alkylation, polymerization, condensation, heating mixing, and constant temperature reactions. It can achieve high stirring effect on viscous and granular substances.

2.3 Glass lined reaction kettle

Scope of application: Widely used in industries such as petroleum, chemical, food, medicine, pesticides, and scientific research.

2.4 Steel lined PE reactor

Applicable scope: Suitable for acids, bases, salts, and most alcohols. Suitable for the extraction of liquid food and pharmaceuticals. It is an ideal replacement for lined rubber, fiberglass, stainless steel, titanium steel, enamel, and plastic welded plates.

2.5. Steel lined PTFE reactor

Scope of application: Excellent anti-corrosion performance, able to resist various concentrations of acids, alkalis, salts, strong oxidants, organic compounds, and all other highly corrosive chemical media.

3. According to the working pressure, it can be divided into atmospheric pressure reaction kettle, positive pressure reaction kettle, and negative pressure reaction kettle.

4. According to the mixing form, it can be divided into blade type, anchor blade type, frame type, screw belt type, turbine type, dispersed disc type, combination type, etc.

5. According to the heat transfer structure, it can be divided into jacket type, outer half tube type, inner coil tube type, and combination type.

structure

The reaction kettle consists of a kettle body, kettle cover, jacket, stirrer, transmission device, shaft seal device, support, etc. When the aspect ratio of the mixing device is large, multiple layers of mixing blades can be used, and it can also be selected according to the user's requirements. A jacket is installed outside the kettle wall, or a heat exchange surface is installed inside the reactor, or heat exchange can be achieved through external circulation. The support seat can be of the support type or ear type. Gear reducers should be used when the speed exceeds 160 revolutions per minute The number of openings, specifications, or other requirements can be designed and manufactured according to user requirements.

1. Packing sealing is usually used under normal or low pressure conditions, with a pressure of less than 2 kilograms.

2. In general, mechanical seals are used for medium pressure or vacuum situations, with a pressure of negative pressure or 4 kilograms.

3. Magnetic sealing will be used under high pressure or high volatility of the medium, usually when the pressure exceeds 14 kilograms. Except for magnetic seals that use water cooling, other sealing forms will increase the cooling water jacket when the temperature exceeds 120 degrees.

Usage Notes

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A reactor is a type of reaction equipment that must be operated carefully, otherwise it may be damaged due to various reasons, leading to production being forced to stop. There are many aspects to pay attention to when operating a reactor.

Firstly, it is necessary to strictly operate the reactor according to the rules and regulations.

Secondly, before operation, carefully check for any abnormalities. During normal operation, do not open the upper cover or touch the wiring terminals on the board to avoid electric shock; It is strictly prohibited to operate under pressure; During the nitrogen pressure test, carefully observe the changes in the pressure gauge. Once the test pressure is reached, immediately turn off the switch; The heating rate should not be too fast, and the pressurization should also be carried out slowly, especially the stirring speed, which is only allowed to increase slowly.

Finally, when the kettle body is heated to a higher temperature, do not come into contact with the kettle body to avoid burns; After the experiment, the temperature should be lowered first. Do not cool quickly to prevent damage caused by excessive temperature and pressure differences. At the same time, it is necessary to unplug the power supply in a timely manner.

At the same time, attention should be paid to maintenance of the reaction kettle after use, so that the high-pressure kettle can have a better service life.

Installation and operation specifications

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1. The high-pressure reactor should be placed indoors. When equipping multiple high-pressure reactors, they should be placed separately. Each operating room should have an exit directly leading to the outside or passage, and the equipment grounding point should be ensured to have good ventilation.

2. When installing the kettle cover, it is necessary to prevent the sealing surfaces between the kettle body and the kettle cover from colliding with each other. Carefully place the kettle lid in a fixed position on the kettle body, and when tightening the main nut, it must be tightened diagonally and symmetrically in multiple steps. Apply even force and do not allow the kettle lid to tilt to one side to achieve a good sealing effect.

3. At the joint of the positive and negative nuts, only the positive and negative nuts are allowed to be rotated, and the sealing surfaces of the two circular arcs must not be rotated relative to each other. When all nut pattern connections are assembled, lubricating oil should be applied.

4. The needle valve system is sealed with a thread. Simply rotate the valve needle gently and press the cover tightly to achieve a good sealing effect.

5. Rotate the rotating body on the kettle by hand to check if it operates flexibly.

6. The controller should be placed flat on the operating platform, with a working environment temperature of 10-40 ℃ and a relative humidity of less than 85%. The surrounding medium should not contain conductive dust or corrosive gases.

7. Check whether the movable parts and fixed contacts on the panel and back panel are normal, remove the cover, and check whether the connector contacts are loose, whether there is damage or rust caused by poor transportation and storage.

8. The controller should be reliably grounded.

9. Connect all wires, including power lines, electric furnace lines between the controller and the kettle, motor lines, temperature sensor and speedometer wires.

10. Close the "power" air main switch on the panel, and the digital display should show.

11. Set various parameters (such as upper limit alarm temperature, working temperature, etc.) on the digital display, then press the "heating" switch to turn on the electric furnace, and the indicator light on the "heating" switch will light up. Adjust the "pressure adjustment" knob to adjust the heating power of the electric furnace.

12. Press the "Mixing" switch to power on the mixing motor, and the indicator light on the "Mixing" switch will light up. Slowly turn the "Speed Control" knob to make the motor rotate slowly, observe whether the motor is rotating in the forward direction, and when there is no error, stop the machine, hang the belt, and restart.

13. After the operation is completed, it can be cooled naturally, cooled with water, or placed on a bracket for air cooling. After the temperature drops, release the pressurized gas inside the kettle to reduce the pressure to atmospheric pressure (the pressure gauge shows zero). Then, loosen the main nut symmetrically and evenly, remove the main nut, and carefully remove the kettle cover and place it on the bracket.

14. After each operation, the residue on the kettle body and lid should be removed. The main seal should be cleaned regularly and kept clean. It is not allowed to wipe it with hard objects or rough surfaces.

maintenance

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(1) Installation location: The reaction vessel should be installed in a high-pressure operating room that meets explosion-proof requirements. When multiple reaction vessels are equipped, they should be placed separately, and a safe explosion-proof wall should be used to separate each two vessels. Each operating room should have a passage and outlet to the outside, and good ventilation should be ensured when explosive media is present.

(2) After opening the packaging, check for any damage to the equipment. Install the equipment according to the structural diagram based on the equipment model, and verify the components provided according to the packing list. If the heating method is thermal oil electric heating, please purchase the corresponding model of thermal oil according to the operating temperature (note: thermal oil must not contain moisture) and add it. When adding, open the oil filling port on the upper part of the jacket and the oil level port on the upper part of the jacket. Add oil through the filling port until the oil level flows out; Twist the oil level port tightly afterwards, do not twist the oil filling port tightly to avoid pressure.

(3) Installation and sealing of kettle body and kettle cover: The kettle body and kettle cover are in line contact with the circular arc surface using gaskets or conical surfaces, and are tightly pressed against each other by tightening the main nut to achieve a good sealing effect. When tightening the nut, it must be diagonally symmetrical and gradually tightened multiple times with even force. It is not allowed for the kettle cover to tilt to one side to achieve a good sealing effect. When tightening the main nut, do not exceed the specified tightening torque range of 40-120N. M to prevent the sealing surface from being crushed or overloaded for wear. Special care should be taken for the sealing surface. Before each installation, use a relatively soft paper or cloth to wipe the upper and lower sealing surfaces clean. Pay special attention not to scratch the sealing surfaces of the kettle body and lid. If operated reasonably, it can be used more than tens of thousands of times. After the sealing surface is damaged, it needs to be reprocessed and repaired to achieve good sealing performance. When disassembling the kettle cover, it should be slowly lifted up and down to prevent the sealing surfaces between the kettle body and the kettle cover from colliding with each other. If gaskets (PTFE, aluminum, copper, asbestos, etc.) are used for sealing, a good sealing effect can be achieved by tightening the main nut.

(4) The installation of valves, pressure gauges, and safety valves achieves a sealing effect by tightening the positive and negative nuts. The circular sealing surfaces at both ends of the connection must not rotate relative to each other. When assembling all screw connections, lubricant or graphite mixed with oil must be applied to prevent them from biting. The use of valves: Needle valves are line sealed, and good sealing performance can be achieved by gently rotating the valve needle and compressing the sealing surface. Excessive force is prohibited to avoid damaging the sealing surface.