Feeding mechanism of evaporator for formaldehyde preparation

Abstract

The utility model provides a feeding mechanism of an evaporator for formaldehyde preparation, which belongs to the technical field of industrial preparation, and comprises a methanol separation assembly, an adsorption structure and a feeding assembly, the tail end of the feeding assembly is provided with an evaporator, the methanol separation assembly comprises an evaporation barrel, and the lower surface of the evaporation barrel is fixedly connected with a No.1 strut. The methanol separation assembly and the adsorption structure are arranged, the evaporation barrel is heated through the heating pipe, the temperature of methanol liquid in the evaporation barrel can be increased, then methanol and water are separated, the stirring structure is controlled by the motor to rotate, the methanol separation speed can be increased, and the separation efficiency is improved. The evaporated and purified methanol gas contains part of water vapor, and the mixed gas passes through a methanol filter, so that the water vapor is filtered out, and the methanol gas can be continuously transmitted.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial preparation, and in particular relates to a feeding mechanism of an evaporator for formaldehyde preparation. Background Art

[0002] Formaldehyde is an organic compound with the chemical formula CH2O. It is one of the simplest aldehyde compounds. It is widely used as a chemical raw material and preservative in industry. It is also commonly used in the manufacture of plywood, furniture, flooring, etc. Formaldehyde is also a toxic substance. Long-term or high-concentration exposure can cause harm to human health.

[0003] Existing publication number CN216571576U discloses a feeding mechanism for an evaporator for formaldehyde preparation, including a base, a lifting shell is provided at the top of the base, a motor is installed on the inner bottom wall of the lifting shell, the left output end of the motor is fixedly connected to the central shaft, the left end of the central shaft is rotatably connected to the left inner wall of the lifting shell, a first rotating shaft and a second rotating shaft are rotatably connected in the lifting shell, both ends of the first rotating shaft and the second rotating shaft pass through the lifting shell and extend to the outside, and the top of the lifting shell is fixedly connected to the absorption shell through a storage bin.

[0004] The feeding mechanism of the existing formaldehyde preparation evaporator still has the following shortcomings:

[0005] 1. Methanol is required as a raw material in the process of preparing formaldehyde. However, methanol liquid is not easy to be sent into the evaporator, and methanol liquid also carries a large amount of water vapor, which is not conducive to the preparation of formaldehyde.

[0006] 2. In the process of sending methanol gas into the evaporator, it is easy to cause the leakage of formaldehyde gas inside the evaporator, which is a pollution to the environment and is also easy to cause harm to the human body. Utility Model Content

[0007] The purpose of the utility model is to solve the problems in the prior art that methanol liquid is not easy to be fed into the evaporator, water vapor in the methanol gas cannot be effectively removed, and formaldehyde gas inside the evaporator is easily leaked during the process of feeding the methanol gas into the evaporator. A feeding mechanism for an evaporator for formaldehyde preparation is proposed.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A feeding mechanism for a formaldehyde production evaporator comprises: a methanol separation assembly, an adsorption structure, and a feeding assembly, wherein an evaporator is provided at the end of the feeding assembly, and the methanol separation assembly comprises an evaporation barrel, wherein a first support is fixedly connected to the lower surface of the evaporation barrel, an air pump is fixedly connected to the upper surface of the evaporation barrel, an upper end of the air pump is fixedly connected to a first pipe, a side of the evaporation barrel is fixedly connected to a feeding pipe, a heating pipe is provided on the inner side wall of the evaporation barrel, and a stirring structure is provided inside the evaporation barrel;

[0010] Preferably, the stirring structure includes a motor, the motor is fixedly connected to the bottom surface of the evaporation barrel, the output end of the motor is fixedly connected to a rotating shaft, the rotating shaft passes through and is rotatably connected to the inner bottom surface of the evaporation barrel, and a plurality of stirring rods are evenly fixedly connected to the side of the rotating shaft from top to bottom, and the stirring rods are arranged below the end of the feed pipe;

[0011] Preferably, the adsorption structure includes a methanol filter, the end of the first tube is fixedly connected to the input end of the methanol filter, and the output end of the methanol filter is fixedly connected to the second tube;

[0012] Preferably, the lower surface of the evaporator is fixedly connected to a second pillar, the lower end of the side of the evaporator is fixedly connected to an air supply pipe, the lower end of the air supply pipe is fixedly connected to a valve, and the middle section of the air supply pipe is fixedly connected to a pressure detector;

[0013] Preferably, the feeding assembly includes a bracket, the bracket is fixedly connected to the upper end of the air supply pipe, a notch is provided on the side of the air supply pipe, the upper surface of the bracket is fixedly connected to a hydraulic press, the lower end of the hydraulic press is fixedly connected to a hydraulic column, the hydraulic column passes through the bracket and extends into the air supply pipe, and the lower surface of the hydraulic column is fixedly connected to a piston;

[0014] Preferably, the end of the No. 2 pipe extends into the air supply pipe through the notch, and the end of the No. 2 pipe is fixedly connected to the upper surface of the piston.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The utility model provides a methanol separation component and an adsorption structure, and heats the evaporation barrel through a heating tube, thereby increasing the temperature of the methanol liquid in the evaporation barrel, thereby separating the methanol and water. The stirring structure is then controlled by a motor to rotate, which can accelerate the separation speed of the methanol. The methanol gas purified by evaporation will contain some water vapor. The mixed gas is passed through a methanol filter to filter out the water vapor, so that the methanol gas can continue to be transmitted.

[0017] 2. The utility model sets a feeding component, and the purified methanol gas is transmitted to the air supply pipe through the No. 2 pipe. When the transmitted gas reaches a certain value, the pressure detector transmits the information to the control terminal, and then closes the piston, opens the valve, and the hydraulic press controls the hydraulic column to move downward, thereby driving the piston to compress the methanol gas in the air supply pipe into the evaporator, thereby ensuring that when the methanol gas is transmitted again, leakage of the gas in the evaporator is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a feeding mechanism of an evaporator for formaldehyde preparation proposed in the present invention;

[0019] Figure 2 This is a feeding mechanism of an evaporator for formaldehyde preparation proposed by the utility model;

[0020] Figure 3 for Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a feeding mechanism of an evaporator for formaldehyde preparation proposed by the utility model;

[0022] Figure 5 for Figure 4 Magnified view of part B.

[0023] In the figure: 1 evaporation barrel, 2 No. 1 pillar, 3 motor, 4 rotating shaft, 5 stirring rod, 6 heating tube, 7 air pump, 8 No. 1 tube, 9 feeding tube, 10 methanol filter, 11 No. 2 tube, 12 evaporator, 13 No. 2 pillar, 14 air supply pipe, 15 valve, 16 pressure detector, 17 bracket, 18 hydraulic press, 19 notch, 20 piston, 21 hydraulic column. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1-Figure 5 A feeding mechanism of an evaporator for preparing formaldehyde comprises: a methanol separation component, an adsorption structure and a feeding component, an evaporator 12 is provided at the end of the feeding component, the methanol separation component comprises an evaporation barrel 1, a No. 1 support 2 is fixedly connected to the lower surface of the evaporation barrel 1, an air pump 7 is fixedly connected to the upper surface of the evaporation barrel 1, an upper end of the air pump 7 is fixedly connected to a No. 1 pipe 8, a feeding pipe 9 is fixedly connected to the side of the evaporation barrel 1, a heating pipe 6 is provided in the inner side wall of the evaporation barrel 1, and a stirring structure is provided in the evaporation barrel 1;

[0026] The stirring structure includes a motor 3, which is fixedly connected to the bottom surface of the evaporation barrel 1. The output end of the motor 3 is fixedly connected to a rotating shaft 4, which passes through and is rotatably connected to the inner bottom surface of the evaporation barrel 1. A plurality of stirring rods 5 are evenly fixedly connected to the side of the rotating shaft 4 from top to bottom. The stirring rods 5 are arranged below the end of the feed pipe 9. The evaporation barrel 1 is heated by the heating pipe 6, which can increase the temperature of the methanol liquid in the evaporation barrel 1, thereby separating the methanol and water. The stirring structure is then controlled by the motor 3 to rotate, which can accelerate the separation of the methanol.

[0027] The adsorption structure includes a methanol filter 10. The end of the first pipe 8 is fixedly connected to the input end of the methanol filter 10. The output end of the methanol filter 10 is fixedly connected to the second pipe 11. The methanol gas purified by evaporation contains some water vapor. By passing the mixed gas through the methanol filter 10, the water vapor is filtered out, allowing the methanol gas to continue to be transmitted.

[0028] The lower surface of the evaporator 12 is fixedly connected to a second support 13. The lower end of the side of the evaporator 12 is fixedly connected to an air supply pipe 14. The lower end of the air supply pipe 14 is fixedly connected to a valve 15. The middle part of the air supply pipe 14 is fixedly connected to a pressure detector 16.

[0029] The feeding assembly includes a bracket 17, which is fixedly connected to the upper end of the air supply pipe 14. A slot 19 is provided on the side of the air supply pipe 14. A hydraulic press 18 is fixedly connected to the upper surface of the bracket 17. The lower end of the hydraulic press 18 is fixedly connected to a hydraulic column 21. The hydraulic column 21 passes through the bracket 17 and extends into the air supply pipe 14. The lower surface of the hydraulic column 21 is fixedly connected to a piston 20. The end of the No. 2 pipe 11 extends into the air supply pipe 14 through the slot 19. The end of the No. 2 pipe 11 is fixedly connected to the upper surface of the piston 20. The purified methanol gas is transmitted to the air supply pipe 14 through the No. 2 pipe 11. When the transmitted gas reaches a certain value, the pressure detector 16 transmits the information to the control terminal, and then closes the piston 20 and opens the valve 15. The hydraulic press 18 controls the hydraulic column 21 to move downward, thereby driving the piston 20 to compress the methanol gas in the air supply pipe 14 into the evaporator 12, thereby ensuring that when the methanol gas is transmitted again, leakage of the gas in the evaporator 12 is avoided.

[0030] The functional principle of this utility model can be explained through the following operation modes:

[0031] By heating the evaporation barrel 1 through the heating tube 6, the temperature of the methanol liquid in the evaporation barrel 1 can be increased, thereby separating the methanol and water. The stirring structure is then controlled to rotate by the motor 3, which can accelerate the separation speed of the methanol. The methanol gas purified by evaporation will contain some water vapor. The mixed gas is passed through the methanol filter 10 to filter out the water vapor, so that the methanol gas can continue to be transmitted. The purified methanol gas is transmitted to the air supply pipe 14 through the No. 2 pipe 11. When the transmitted gas reaches a certain value, the pressure detector 16 transmits the information to the control terminal, and then closes the piston 20, opens the valve 15, and the hydraulic press 18 controls the hydraulic column 21 to move downward, thereby driving the piston 20 to compress the methanol gas in the air supply pipe 14 into the evaporator 12, thereby ensuring that when the methanol gas is transmitted again, leakage of the gas in the evaporator 12 is avoided.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A feeding mechanism of an evaporator for preparing formaldehyde, characterized in that: The invention comprises a methanol separation component, an adsorption structure and a feeding component, wherein an evaporator (12) is provided at the end of the feeding component, and the methanol separation component comprises an evaporation barrel (1), the lower surface of the evaporation barrel (1) is fixedly connected to a No. 1 support (2), the upper surface of the evaporation barrel (1) is fixedly connected to an air pump (7), the upper end of the air pump (7) is fixedly connected to a No. 1 pipe (8), the side of the evaporation barrel (1) is fixedly connected to a feed pipe (9), a heating pipe (6) is provided in the inner side wall of the evaporation barrel (1), and a stirring structure is provided in the evaporation barrel (1).

2. The feeding mechanism of the evaporator for formaldehyde preparation according to claim 1, characterized in that: in: The stirring structure comprises a motor (3), the motor (3) being fixedly connected to the bottom surface of the evaporation barrel (1), the output end of the motor (3) being fixedly connected to a rotating shaft (4), the rotating shaft (4) penetrating and rotatably connected to the inner bottom surface of the evaporation barrel (1), and a plurality of stirring rods (5) being evenly fixedly connected to the side surface of the rotating shaft (4) from top to bottom, the stirring rods (5) being arranged below the end of the feed pipe (9).

3. The feeding mechanism of the evaporator for formaldehyde preparation according to claim 1, characterized in that: in: The adsorption structure includes a methanol filter (10), the end of the No. 1 pipe (8) is fixedly connected to the input end of the methanol filter (10), and the output end of the methanol filter (10) is fixedly connected to the No. 2 pipe (11).

4. The feeding mechanism of the evaporator for formaldehyde preparation according to claim 3, characterized in that: in: The lower surface of the evaporator (12) is fixedly connected to a second pillar (13), the lower end of the side of the evaporator (12) is fixedly connected to an air supply pipe (14), the lower end of the air supply pipe (14) is fixedly connected to a valve (15), and the middle section of the air supply pipe (14) is fixedly connected to a pressure detector (16).

5. The feeding mechanism of the evaporator for formaldehyde preparation according to claim 4, characterized in that: in: The feeding assembly includes a bracket (17), the bracket (17) is fixedly connected to the upper end of the air supply pipe (14), a notch (19) is provided on the side of the air supply pipe (14), the upper surface of the bracket (17) is fixedly connected to a hydraulic press (18), the lower end of the hydraulic press (18) is fixedly connected to a hydraulic column (21), the hydraulic column (21) passes through the bracket (17) and extends into the air supply pipe (14), and the lower surface of the hydraulic column (21) is fixedly connected to a piston (20).

6. The feeding mechanism of the evaporator for formaldehyde production according to claim 5, characterized in that: in: The end of the No. 2 pipe (11) extends into the air supply pipe (14) through the notch (19), and the end of the No. 2 pipe (11) is fixedly connected to the upper surface of the piston (20).

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