CN215783240U - Oxidation reaction device for formaldehyde production - Google Patents

Abstract

The utility model discloses an oxidation reaction device for formaldehyde production, which comprises a reaction tank and a catalyst reaction layer arranged in the reaction tank, wherein the catalyst reaction layer divides the reaction tank into a mixing cavity and a reaction cavity, a raw gas inlet and a water vapor inlet are arranged above the mixing cavity, an outlet is arranged below the reaction cavity, an oil groove is arranged on the outer wall of the reaction tank, a motor is arranged above the reaction tank, the output end of the motor is connected with a rotating rod, the rotating rod extends into the mixing cavity, and the bottom of the rotating rod is connected with a rotating plate. The raw materials are added to carry out more sufficient chemical reaction with the catalyst, so that the reaction efficiency of the formaldehyde is improved.

Description

Oxidation reaction device for formaldehyde production

Technical Field

The utility model belongs to the technical field of formaldehyde production, and particularly relates to an oxidation reaction device for formaldehyde production.

Background

The formaldehyde has wide application, and formaldehyde is used in the fields of plastics, rubber, pesticides, disinfection, corrosion prevention and the like, so that the formaldehyde is used by multiple hands in the chemical industry, but once the formaldehyde is used beyond the standard and the limited quantity, the formaldehyde brings disadvantages, and along with the continuous development of the industry in the year, the yield of the formaldehyde also becomes an increasing trend, and the problems in the prior art are as follows: in the production process of formaldehyde, uneven mixing of raw materials and incomplete reaction between the raw materials and a catalyst may occur, so that the reaction is slow and the catalytic efficiency is low.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides an oxidation reaction device for formaldehyde production, which can fully mix raw materials, keep the optimum temperature for oxidation in a reactor, add the raw materials to carry out more sufficient chemical reaction with a catalyst, improve the reaction efficiency of formaldehyde, and solve the problems that in the existing formaldehyde production process, the raw materials are not uniformly mixed, the reaction between the raw materials and the catalyst is incomplete, the reaction is slow, and the catalytic efficiency is low.

The utility model discloses an oxidation reaction device for formaldehyde production, which comprises a reaction tank and a catalyst reaction layer arranged in the reaction tank, wherein the catalyst reaction layer divides the reaction tank into a mixing cavity and a reaction cavity, a raw gas inlet and a water vapor inlet are arranged above the mixing cavity, an outlet is arranged below the reaction cavity, an oil groove is arranged on the outer wall of the reaction tank, a motor is arranged above the reaction tank, the output end of the motor is connected with a rotating rod, the rotating rod extends into the mixing cavity, and the bottom of the rotating rod is connected with a rotating plate.

Preferably, the top of the inner wall of the reaction tank is provided with an air inlet box, a honeycomb plate is arranged in the air inlet box, and two sides of the air inlet box are respectively communicated with the raw gas inlet and the water vapor inlet.

Preferably, a helical blade is provided above the rotating plate.

Preferably, the inner wall of the reaction chamber is provided with a heat conducting rod, and one end of the heat conducting rod is connected with a heat conducting plate.

Preferably, an oil inlet pipe is arranged at the upper end of the oil groove, an electronic valve is arranged on the oil inlet pipe, and an oil temperature detection rod is arranged inside the oil groove.

Preferably, a sealing ring is arranged at the joint of the rotating rod and the reaction tank, and the sealing ring is sleeved on the outer surface of the rotating rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model achieves the purposes of fully mixing raw materials, keeping the optimal temperature of oxidation in the reactor, adding the raw materials to perform more sufficient chemical reaction with the catalyst and improving the production efficiency of formaldehyde by arranging the matching use of the reaction tank, the catalyst reaction layer, the mixing cavity, the reaction cavity, the raw gas inlet, the steam outlet, the oil groove, the motor, the rotating rod and the rotating plate.

2. The utility model can diffuse and disperse the raw gas and the water vapor by arranging the air inlet box and the honeycomb plate in a matching way, thereby being more convenient for mixing the raw gas and the water vapor.

3. According to the utility model, the helical blades are arranged, so that the mixing of the ammonia and the steam can be improved, the mixture can be more sufficiently chemically reacted with the catalyst, and the reaction efficiency of the formaldehyde is improved.

4. The heat conduction rod and the heat conduction plate are matched for use, so that the heat conduction efficiency is better, and sufficient heat support is provided for the oxidation reaction of formaldehyde.

5. According to the utility model, through arranging the oil inlet pipe, the electronic valve and the oil temperature detection rod, the temperature of oil in the oil tank can be controlled in real time, so that the heat in the oil tank keeps the optimal reaction temperature for formaldehyde oxidation, and the oxidation efficiency is improved.

6. According to the utility model, the reaction tank can be sealed by arranging the sealing ring, so that leakage in the oxidation process of formaldehyde is prevented.

Drawings

FIG. 1 is a schematic isometric view of an embodiment of the present invention;

FIG. 2 is a right side view provided by an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2 according to an embodiment of the present invention.

In the figure: 1. a reaction tank; 2. a catalyst reaction layer; 3. a mixing chamber; 4. a reaction chamber; 5. a raw gas inlet; 6. a water vapor inlet; 7. an outlet; 8. an oil sump; 9. a motor; 10. rotating the rod; 11. a rotating plate; 12. An air intake box; 13. a honeycomb panel; 14. a helical blade; 15. a heat conducting rod; 16. a heat conducting plate; 17. an oil inlet pipe; 18. an electronic valve; 19. an oil temperature detection rod; 20. and (5) sealing rings.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The structure of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, an oxidation reaction device for formaldehyde production provided by an embodiment of the present invention includes a reaction tank 1 and a catalyst reaction layer 2 disposed inside the reaction tank 1, the catalyst reaction layer 2 divides the reaction tank 1 into a mixing chamber 3 and a reaction chamber 4, a raw gas inlet 5 and a water vapor inlet 6 are disposed above the mixing chamber 3, an outlet 7 is disposed below the reaction chamber 4, an oil groove 8 is disposed on an outer wall of the reaction tank 1, a motor 9 is disposed above the reaction tank 1, an output end of the motor 9 is connected to a rotating rod 10, the rotating rod 10 extends to the inside of the mixing chamber 3, and a rotating plate 11 is connected to a bottom of the rotating rod 10.

Referring to fig. 3, an air inlet box 12 is arranged at the top of the inner wall of the reaction tank 1, a honeycomb panel 13 is arranged inside the air inlet box 12, and two sides of the air inlet box 12 are respectively communicated with the raw gas inlet 5 and the water vapor inlet 6.

Adopt above-mentioned scheme: through the cooperation that sets up inlet box 12 and honeycomb panel 13 and use, can spread and disperse former gas and vapor, make things convenient for the mixture of former gas and vapor more.

Referring to fig. 3, a spiral blade 14 is provided above the rotating plate 11.

Adopt above-mentioned scheme: through setting up helical blade 14, can improve the mixture of high air and steam, make its and catalyst can be more abundant take place chemical reaction, improve the reaction efficiency of formaldehyde.

Referring to fig. 3, the inner wall of the reaction chamber 4 is provided with a heat conducting rod 15, and one end of the heat conducting rod 15 is connected with a heat conducting plate 16.

Adopt above-mentioned scheme: through the cooperation of the heat conducting rod 15 and the heat conducting plate 16, the heat conducting efficiency can be better, and sufficient heat support can be provided for the oxidation reaction of formaldehyde.

Referring to fig. 1, an oil inlet pipe 17 is disposed at an upper end of the oil tank 8, an electronic valve 18 is disposed on the oil inlet pipe 17, and an oil temperature detection rod 19 is disposed inside the oil tank 8.

Adopt above-mentioned scheme: through setting up into oil pipe 17, electronic valve 18 and oil temperature detection stick 19, can control the fluid temperature in the oil groove 8 in real time, make the heat in the oil groove 8 keep the best reaction temperature of formaldehyde oxidation, improve the efficiency of oxidation.

Referring to fig. 1, a sealing ring 20 is arranged at the joint of the rotating rod 10 and the reaction tank 1, and the sealing ring 20 is sleeved on the outer surface of the rotating rod 10.

Adopt above-mentioned scheme: by arranging the sealing ring 20, the reaction tank 1 can be sealed, and leakage in the oxidation process of formaldehyde is prevented.

The working principle of the utility model is as follows:

when using, at first heat the fluid in the oil groove 8, when reacing the temperature that is fit for the formaldehyde reaction through oil temperature detection stick 19, let in raw materials gas and vapor in mixing chamber 3, honeycomb panel 13 through in the inlet box 12 disperses gas, motor 9 drives rotor plate 11, rotor plate 11 drives helical blade 14 and rotates, carry out intensive mixing to raw materials gas and vapor, make raw materials gas, vapor and the catalyst in the catalyst reaction layer 2 carry out the intensive reaction, heat transfer in the oil groove 8 to heat-conducting plate 16 through heat conduction stick 15, make raw materials gas under the effect that heat conduction area is increased to heat-conducting plate 16, vapor and catalyst carry out more abundant chemical reaction, the formaldehyde that the reaction was obtained discharges through export 7.

In summary, the following steps: the oxidation reaction device for formaldehyde production comprises a reaction tank 1, a catalyst reaction layer 2, a mixing cavity 3, a reaction cavity 4, a raw gas inlet 5, a water vapor inlet 6, an outlet 7, an oil groove 8, a motor 9, a rotating rod 10, a rotating plate 11, an air inlet box 12, a honeycomb plate 13, a spiral blade 14, a heat conducting rod 15, a heat conducting plate 16, an oil inlet pipe 17, an electronic valve 18, an oil temperature detecting rod 19 and a sealing ring 20, and is used in a matching manner, so that raw materials can be fully mixed, the optimal temperature of oxidation can be kept in a reactor, the raw materials and the catalyst can be added to perform more sufficient chemical reaction, the production efficiency of formaldehyde is improved, and the problems that in the existing formaldehyde production process, the mixing among the raw materials is not uniform, the reaction between the raw materials and the catalyst is incomplete, the reaction is slow, and the catalytic efficiency is low are solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a formaldehyde is oxidation reaction unit for production, includes retort (1) and locates inside catalyst reaction layer (2) of retort (1), its characterized in that: catalyst reaction layer (2) divide into hybrid chamber (3) and reaction chamber (4) with retort (1), the top of hybrid chamber (3) is equipped with raw gas import (5) and vapor import (6), the below of reaction chamber (4) is equipped with export (7), the outer wall of retort (1) is equipped with oil groove (8), the top of retort (1) is equipped with motor (9), the output of motor (9) is connected with dwang (10), dwang (10) extend to hybrid chamber (3) inside, just the bottom of dwang (10) is connected with rotor plate (11).

2. The oxidation reaction apparatus for formaldehyde production according to claim 1, wherein: the reaction tank is characterized in that an air inlet box (12) is arranged at the top of the inner wall of the reaction tank (1), a honeycomb plate (13) is arranged inside the air inlet box (12), and two sides of the air inlet box (12) are respectively communicated with a raw gas inlet (5) and a water vapor inlet (6).

3. The oxidation reaction apparatus for formaldehyde production according to claim 1, wherein: and a helical blade (14) is arranged above the rotating plate (11).

4. The oxidation reaction apparatus for formaldehyde production according to claim 1, wherein: the inner wall of the reaction cavity (4) is provided with a heat conducting rod (15), and one end of the heat conducting rod (15) is connected with a heat conducting plate (16).

5. The oxidation reaction apparatus for formaldehyde production according to claim 1, wherein: the upper end of oil groove (8) is equipped with into oil pipe (17), it is equipped with electronic valve (18) on oil pipe (17) to advance, the inside of oil groove (8) is equipped with oil temperature and surveys stick (19).

6. The oxidation reaction apparatus for formaldehyde production according to claim 1, wherein: the junction of dwang (10) and retort (1) is equipped with sealing washer (20), the surface at dwang (10) is established in sealing washer (20) cover.

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