Oxidation reaction device for formaldehyde production

Abstract

The utility model provides an oxidation reaction device for formaldehyde production, and relates to the field of formaldehyde production. The oxidation reaction device for formaldehyde production comprises a reaction tank, a cover plate is movably arranged on the top surface of the reaction tank, and a mixing mechanism is fixedly mounted on the top surface of the cover plate; the mixing mechanism comprises a servo motor fixedly mounted on the top surface of the cover plate, the output end of the servo motor penetrates through the cover plate and is fixedly provided with an auger rod, and a plurality of groups of stirring rods are fixedly arranged on the surface of the auger rod. In consideration of the problem that formaldehyde raw materials are inconvenient to fully mix and stir, an external power supply is connected, a servo motor drives an auger rod and a stirring rod to rotate, the auger rod can fully exchange upper and lower layers of materials of the formaldehyde raw materials, and then the stirring rod fully mixes the formaldehyde production raw materials, so that the formaldehyde production efficiency is improved. The effect of fully mixing and stirring the raw materials for formaldehyde production is achieved, so that the raw materials can be fully contacted, and the reaction efficiency of the raw materials is improved.

Description

Technical Field

[0001] The present application relates to the technical field of formaldehyde production, and in particular to an oxidation reaction device for formaldehyde production. Background Art

[0002] Formaldehyde is an organic compound that has a wide range of uses in the petrochemical, pharmaceutical, biochemical, energy, transportation and other industries. It can be used as a disinfectant and preservative, and can also be used to prepare phenolic resins, urea-formaldehyde resins, melamine resins and other products. Formaldehyde is produced using refined methanol as raw material using the pumice silver process. In the reactor, methanol, air and water vapor are heated and then, under the action of a silver catalyst, oxidation and dehydrogenation reactions occur to generate high-temperature formaldehyde gas, which is then cooled to a temperature and absorbed in an absorption tower to obtain a formaldehyde solution.

[0003] The conventional oxidation reaction device for formaldehyde production is not convenient for fully mixing and stirring the raw materials for formaldehyde production. If the raw materials are not fully mixed, the reaction efficiency will be affected, thereby affecting the production efficiency of formaldehyde. Summary of the invention

[0004] The present application provides an oxidation reaction device for formaldehyde production to solve the problem that it is inconvenient to fully mix and stir the raw materials for formaldehyde production. If the raw materials are not fully mixed, the reaction efficiency will be affected, thereby affecting the production efficiency of formaldehyde.

[0005] The present application provides an oxidation reaction device for formaldehyde production, comprising a reaction tank, the top surface of which is movably provided with a cover plate, and the top surface of which is fixedly provided with a mixing mechanism; the mixing mechanism comprises a servo motor fixedly installed on the top surface of the cover plate, the output end of the servo motor passes through the cover plate and is fixedly provided with an auger rod, and the surface of the auger rod is fixedly provided with a plurality of groups of stirring rods.

[0006] Preferably, an electric heating network is fixedly installed on the inner wall of the reaction tank, and the electric heating network is electrically connected to a temperature controller. The temperature controller is fixedly installed on the surface of the reaction tank, and the temperature controller is used to control the heating temperature of the electric heating network. The electric heating network heats the raw materials inside the reaction tank.

[0007] Preferably, a delivery pipe is provided at the top of the reaction tank surface, a valve is fixedly installed on the surface of the delivery pipe, and an absorption tank is provided at the bottom of the delivery pipe. The absorption tank is used to absorb the gas reacted in the reaction tank and prepare a formaldehyde solution after cooling.

[0008] Preferably, a cooling mechanism is fixedly installed on the surface of the absorption tank, and the cooling mechanism includes heat dissipation fins fixedly installed on the surface of the absorption tank. A heat dissipation fan is fixedly installed on one side of the heat dissipation fins. The heat dissipation fins absorb the heat inside the absorption tank. When the heat dissipation fan is turned on, the heat dissipation fan accelerates the air flow rate on the surface of the heat dissipation fins, quickly discharges the heat, and improves the formaldehyde gas condensation efficiency inside the absorption tank.

[0009] Preferably, a drain pipe is connected through the bottom of one side of the absorption tank, and a control valve is fixedly installed on the surface of the drain pipe. The control valve is used to control the opening and closing of the drain pipe to facilitate the discharge of formaldehyde solution.

[0010] Preferably, connecting plates are fixedly provided on both sides of the surfaces of the reaction tank and the absorption tank, and connecting screw holes are provided on the surfaces of the connecting plates. Connecting bolts are movably provided inside the connecting screw holes to fit the reaction tank and the absorption tank together. At this time, the two sets of connecting plates are fitted together, and the connecting bolts are turned to connect and fix the reaction tank and the absorption tank.

[0011] Preferably, a motor cabin is sleeved on the surface of the servo motor, a heat dissipation net is provided on the surface of the motor cabin, the motor cabin is fixedly mounted on the top surface of the cover plate, the motor cabin is used to protect the servo motor, and the heat dissipation net facilitates the heat dissipation of the servo motor.

[0012] Beneficial effects:

[0013] Taking into account the problem that it is inconvenient to fully mix and stir the formaldehyde raw materials, an external power supply is connected, and the servo motor drives the auger rod and the stirring rod to rotate. The auger rod can fully exchange the upper and lower layers of the formaldehyde raw materials, and the stirring rod can fully mix the formaldehyde production raw materials, thereby achieving the effect of fully mixing and stirring the raw materials for formaldehyde production, allowing the raw materials to fully contact each other, thereby improving the reaction efficiency between the raw materials.

[0014] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1The utility model is a schematic diagram of the overall structure of an oxidation reaction device for formaldehyde production.

[0017] Figure 2 The utility model is a schematic diagram of the structure of a mixing mechanism of an oxidation reaction device for formaldehyde production.

[0018] Figure 3 The utility model is a schematic diagram of the cooling mechanism structure of an oxidation reaction device for formaldehyde production.

[0019] Figure 4 The utility model is a schematic diagram of the electric heating network structure of an oxidation reaction device for formaldehyde production.

[0020] Description of reference numerals:

[0021] 1. Reaction tank; 2. Cover plate; 3. Mixing mechanism; 301. Servo motor; 302. Auger rod; 303. Stirring rod; 4. Electric heating network; 5. Temperature controller; 6. Delivery pipe; 7. Absorption tank; 8. Cooling mechanism; 801. Cooling fins; 802. Cooling fan; 9. Drain pipe; 10. Connecting piece; 11. Motor compartment. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0026] In addition, the expressions of indicated directions such as the X direction, the Y direction, and the Z direction used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0027] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0028] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0030] The utility model provides Figure 1-4The oxidation reaction device for formaldehyde production shown in the figure comprises a reaction tank 1, characterized in that: a cover plate 2 is movably provided on the top surface of the reaction tank 1, and a mixing mechanism 3 is fixedly installed on the top surface of the cover plate 2; the mixing mechanism 3 comprises a servo motor 301 fixedly installed on the top surface of the cover plate 2, an auger rod 302 is fixedly provided on the output end of the servo motor 301 through the cover plate 2, and a plurality of groups of stirring rods 303 are fixedly provided on the surface of the auger rod 302;

[0031] The servo motor 301 is connected to an external power source to drive the auger rod 302 and the stirring rod 303 to rotate. The auger rod 302 can fully exchange the upper and lower layer materials of the formaldehyde raw material, and the stirring rod 303 can fully mix the formaldehyde production raw materials, thereby achieving the effect of fully mixing and stirring the formaldehyde production raw materials, allowing the raw materials to fully contact each other, thereby improving the reaction efficiency between the raw materials.

[0032] The inner wall of the reaction tank 1 is fixedly provided with an electric heating network 4 , the electric heating network 4 is electrically connected to a temperature controller 5 , and the temperature controller 5 is fixedly installed on the surface of the reaction tank 1 .

[0033] The electric heating network 4 heats the material inside the reaction tank 1 , and the temperature controller 5 controls the heating temperature of the electric heating network 4 .

[0034] The top of the surface of the reaction tank 1 is connected to a delivery pipe 6 , a valve is fixedly installed on the surface of the delivery pipe 6 , and the bottom of the delivery pipe 6 is connected to an absorption tank 7 .

[0035] The high-temperature gas produced by the reaction tank 1 is transported to the absorption tank 7 through the delivery pipe 6. The absorption tank 7 is used to absorb the gas produced by the reaction in the reaction tank 1 and prepare a formaldehyde solution after cooling.

[0036] A cooling mechanism 8 is fixedly mounted on the surface of the absorption tank 7 . The cooling mechanism 8 includes a heat dissipation fin 801 fixedly mounted on the surface of the absorption tank 7 . A heat dissipation fan 802 is fixedly mounted on one side of the heat dissipation fin 801 .

[0037] The heat dissipation fins 801 absorb the heat inside the absorption tank 7 , and the heat dissipation fan 802 is turned on. The heat dissipation fan 802 accelerates the air flow rate on the surface of the heat dissipation fins 801 , quickly discharges the heat, and improves the formaldehyde gas condensation efficiency inside the absorption tank 7 .

[0038] A drain pipe 9 is connected through the bottom of one side of the absorption tank 7 , and a control valve is fixedly installed on the surface of the drain pipe 9 .

[0039] The control valve is used to control the opening and closing of the drain pipe 9 to facilitate the discharge of the formaldehyde solution.

[0040] Wherein, connecting plates 10 are fixedly arranged on both sides of the surfaces of the reaction tank 1 and the absorption tank 7, and connecting screw holes are arranged on the surfaces of the connecting plates 10, and connecting bolts are movably arranged inside the connecting screw holes.

[0041] The reaction tank 1 and the absorption tank 7 are fitted together, and the two sets of connecting pieces 10 are fitted together. The connecting bolts are screwed to connect and fix the reaction tank 1 and the absorption tank 7.

[0042] The surface of the servo motor 301 is sleeved with a motor cabin 11 , the surface of the motor cabin 11 is provided with a heat dissipation net, and the motor cabin 11 is fixedly installed on the top surface of the cover plate 2 .

[0043] The motor compartment 11 is used to protect the servo motor 301 , and the heat dissipation net facilitates the heat dissipation of the servo motor 301 .

[0044] Working principle: When the oxidation reaction device for formaldehyde production is used, the raw materials for formaldehyde production are put into the reaction tank 1, the electric heating network 4 heats the materials inside the reaction tank 1, and the temperature controller 5 controls the heating temperature of the electric heating network 4.

[0045] Connected to an external power source, the servo motor 301 drives the auger rod 302 and the stirring rod 303 to rotate, the auger rod 302 can fully exchange the upper and lower layer materials of the formaldehyde raw material, and the stirring rod 303 can fully mix the formaldehyde production raw materials.

[0046] The high-temperature gas produced by the reaction tank 1 is transported to the absorption tank 7 through the delivery pipe 6. The heat dissipation fins 801 absorb the heat inside the absorption tank 7. The heat dissipation fan 802 is turned on. The heat dissipation fan 802 accelerates the air flow rate on the surface of the heat dissipation fins 801 to quickly discharge the heat, thereby improving the formaldehyde gas condensation efficiency inside the absorption tank 7. The control valve is used to control the opening and closing of the drain pipe 9 to facilitate the discharge of the formaldehyde solution.

[0047] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An oxidation reaction device for formaldehyde production, comprising a reaction tank (1), characterized in that: A cover plate (2) is movably provided on the top surface of the reaction tank (1), and a mixing mechanism (3) is fixedly installed on the top surface of the cover plate (2); The mixing mechanism (3) comprises a servo motor (301) fixedly mounted on the top surface of the cover plate (2); an output end of the servo motor (301) passes through the cover plate (2) and is fixedly provided with an auger rod (302); and a plurality of groups of stirring rods (303) are fixedly provided on the surface of the auger rod (302).

2. The oxidation reaction device for formaldehyde production according to claim 1, characterized in that: An electric heating network (4) is fixedly arranged on the inner wall of the reaction tank (1); the electric heating network (4) is electrically connected to a temperature controller (5); and the temperature controller (5) is fixedly installed on the surface of the reaction tank (1).

3. The oxidation reaction device for formaldehyde production according to claim 1, characterized in that: The top of the reaction tank (1) is connected to a delivery pipe (6), a valve is fixedly installed on the surface of the delivery pipe (6), and the bottom of the delivery pipe (6) is connected to an absorption tank (7).

4. The oxidation reaction device for formaldehyde production according to claim 3, characterized in that: A cooling mechanism (8) is fixedly mounted on the surface of the absorption tank (7), and the cooling mechanism (8) comprises a heat dissipation fin (801) fixedly mounted on the surface of the absorption tank (7), and a heat dissipation fan (802) is fixedly mounted on one side of the heat dissipation fin (801).

5. The oxidation reaction device for formaldehyde production according to claim 3, characterized in that: A drainage pipe (9) is connected through the bottom of one side of the absorption tank (7), and a control valve is fixedly installed on the surface of the drainage pipe (9).

6. The oxidation reaction device for formaldehyde production according to claim 3, characterized in that: Connecting plates (10) are fixedly provided on both sides of the surfaces of the reaction tank (1) and the absorption tank (7), connecting screw holes are provided on the surfaces of the connecting plates (10), and connecting bolts are movably provided inside the connecting screw holes.

7. The oxidation reaction device for formaldehyde production according to claim 1, characterized in that: The surface of the servo motor (301) is sleeved with a motor cabin (11), the surface of the motor cabin (11) is provided with a heat dissipation net, and the motor cabin (11) is fixedly mounted on the top surface of the cover plate (2).

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