Production equipment for preparing formaldehyde

Abstract

The utility model relates to the technical field of formaldehyde preparation, in particular to production equipment for preparing formaldehyde, which comprises a preparation tank, the upper surface of the preparation tank is in threaded connection with a cover body, the right surface of the preparation tank is provided with a motor, and the output shaft end of the motor is fixedly connected with a rotating shaft. A cover body is rotated to be separated from a preparation tank, a motor is started to drive a rotating shaft and a driving bevel gear to rotate, a driven bevel gear meshed with the driving bevel gear drives a threaded rod to rotate, the threaded rod drives a nut plate and a catalyst box to ascend to the upper end, four mounting blocks rotate along rotating grooves, and the mounting blocks correspond to the mounting grooves in position; the catalyst cover plate is taken out upwards, a new catalyst is replaced, then the four mounting blocks are pushed in along the inner side walls of the mounting grooves, after the mounting blocks enter the rotating grooves, the mounting blocks are rotated to be staggered from the mounting grooves, fixing of the catalyst cover plate is completed, the catalyst can be replaced in time, the catalyst cover plate is convenient to mount and dismount, time and labor are saved, and the catalyst cover plate is convenient to mount and dismount. And the production efficiency is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of formaldehyde preparation, in particular to production equipment for preparing formaldehyde. Background Art

[0002] Formaldehyde is an organic compound with the chemical formula HCHO. It is a colorless gas with a pungent odor. At room temperature, formaldehyde is a gas, but it can also be dissolved in water to form a formaldehyde aqueous solution, commonly known as formalin. Formaldehyde has a wide range of applications in industry.

[0003] In the process of preparing formaldehyde using the "silver method", it is necessary to perform an oxidation reaction on the vaporized methanol and air mixture. At present, some oxidation reaction equipment on the market has a catalyst plate fixed inside the reactor. However, during use, the catalyst is consumed, which requires timely replacement of the catalyst. The fixed catalyst plate is inconvenient to replace, which is time-consuming and laborious, affecting production efficiency. Therefore, a production equipment for preparing formaldehyde is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a production device for preparing formaldehyde to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a production device for preparing formaldehyde, comprising a preparation tank, the upper surface of the preparation tank is threadedly connected to a cover body, the right surface of the preparation tank is provided with a motor, the output shaft end of the motor is fixedly connected to a rotating shaft, the rotating shaft passes through the right surface of the preparation tank, the rotating shaft is rotatably connected to the inner wall of the preparation tank through a bearing, one end of the rotating shaft extending to the inside of the preparation tank is fixedly connected to a driving bevel gear, the lower surface of the inner wall of the preparation tank is rotatably connected to a threaded rod through a bearing, and the outer surface of the threaded rod is rotatably connected to the inner wall of the preparation tank. A driven bevel gear is fixedly connected to the upper end of the side wall, and the driving bevel gear is meshed with the driven bevel gear. A nut plate is threadedly connected to the outer wall of the threaded rod, and a catalyst box is fixedly connected to the left side wall of the nut plate. Four mounting grooves are opened on the upper surface of the catalyst box, and a rotation groove is opened on the inner side wall of the catalyst box. The mounting groove is communicated with the rotation groove. A catalyst cover plate is provided inside the catalyst box, and four mounting blocks are welded to the outer side wall of the catalyst cover plate. The outer side wall of the mounting block is slidably connected to the inner side wall of the mounting groove.

[0006] As a further preferred embodiment of the present technical solution: the right surface of the nut plate is fixedly connected to a limiting block, the inner surface of the preparation tank is fixedly connected to a limiting groove, and the outer side wall of the limiting block is slidably connected to the inner side wall of the limiting groove.

[0007] As a further preferred embodiment of the technical solution: a first through groove is formed on the lower surface of the catalyst box, and a second through groove is formed on the upper surface of the catalyst cover plate.

[0008] As a further preferred embodiment of the present technical solution: the front surface of the preparation tank is connected to an air inlet pipe.

[0009] As a further preferred embodiment of the present technical solution: an upper surface of the cover body is connected to an air outlet pipe.

[0010] As a further preferred embodiment of the present technical solution: a fixing plate is fixedly connected to the right surface of the preparation tank, and a lower surface of the motor is fixedly connected to an upper surface of the fixing plate.

[0011] As a further preferred embodiment of the present technical solution: legs are evenly welded on the lower surface of the preparation tank.

[0012] As a further preferred embodiment of the present technical solution: a handle is fixedly connected to the upper surface of the catalyst cover plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model separates the cover body from the preparation tank by rotating, and starts the motor to drive the rotating shaft and the active bevel gear to rotate, and the driven bevel gear meshing with the active bevel gear drives the threaded rod to rotate, and the threaded rod drives the nut plate and the catalyst box to rise to the upper end. At this time, the mounting block is located inside the rotating groove, and the four mounting blocks are rotated along the rotating groove so that the positions of the mounting blocks and the mounting grooves correspond. The catalyst cover plate is taken out upward, and a new catalyst is replaced, and the four mounting blocks are pushed in along the inner wall of the mounting groove. When the mounting block enters the rotating groove, the mounting block is rotated to stagger it with the mounting groove to complete the fixing of the catalyst cover plate. The catalyst can be replaced in time with the equipment, and it is convenient to install and remove the catalyst cover plate, which saves time and effort and does not affect production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the preparation tank in the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the preparation tank in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the nut plate in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the catalyst box in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the catalyst cover plate in the utility model.

[0021] In the figure: 1. preparation tank; 2. cover body; 3. motor; 4. rotating shaft; 5. driving bevel gear; 6. threaded rod; 7. driven bevel gear; 8. nut plate; 9. catalyst box; 10. mounting groove; 11. rotating groove; 12. catalyst cover plate; 13. mounting block; 14. limiting block; 15. limiting groove; 16. first through groove; 17. second through groove; 18. air inlet pipe; 19. air outlet pipe; 20. fixing plate; 21. supporting leg; 22. handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] See also Figure 1-6The utility model provides a technical solution: a production equipment for preparing formaldehyde, comprising a preparation tank 1, a cover body 2 is threadedly connected to the upper surface of the preparation tank 1, a motor 3 is arranged on the right surface of the preparation tank 1, and a rotating shaft 4 is fixedly connected to the output shaft end of the motor 3, and the rotating shaft 4 passes through the right surface of the preparation tank 1, and the rotating shaft 4 is rotatably connected to the inner wall of the preparation tank 1 through a bearing, and one end of the rotating shaft 4 extending to the inside of the preparation tank 1 is fixedly connected to a driving bevel gear 5, and a threaded rod 6 is rotatably connected to the lower surface of the inner wall of the preparation tank 1 through a bearing, and a driven bevel gear 7 is fixedly connected to the upper end of the outer wall of the threaded rod 6, and the driving bevel gear 5 is meshed with the driven bevel gear 7, and a nut plate 8 is threadedly connected to the outer wall of the threaded rod 6, and a catalyst box 9 is fixedly connected to the left wall of the nut plate 8, and four installation grooves 10 are opened on the upper surface of the catalyst box 9, and a rotating groove 11 is opened on the inner wall of the catalyst box 9, and the installation groove 10 is connected to the rotating groove 11, and a catalyst cover plate 12 is arranged inside the catalyst box 9, and the catalyst cover plate 1 2 is welded with four mounting blocks 13, and the outer wall of the mounting block 13 is slidably connected with the inner wall of the mounting groove 10; the cover body 2 is separated from the preparation tank 1, and the starting motor 3 drives the rotating shaft 4 and the active bevel gear 5 to rotate, and the driven bevel gear 7 meshing with the active bevel gear 5 drives the threaded rod 6 to rotate, and the threaded rod 6 drives the nut plate 8 and the catalyst box 9 to rise to the upper end. At this time, the mounting block 13 is located inside the rotating groove 11, and the four mounting blocks 13 are rotated along the rotating groove 11 so that the position of the mounting block 13 corresponds to the position of the mounting groove 10, and the catalyst cover plate 12 is taken out upward, and a new catalyst is replaced, and then the four mounting blocks 13 are pushed in along the inner wall of the mounting groove 10. When the mounting block 13 enters the rotating groove 11, the mounting block 13 is rotated to stagger it with the mounting groove 10 to complete the fixing of the catalyst cover plate 12, and the starting motor 3 drives the rotating shaft 4 and the active bevel gear 5 to rotate, so that the driven bevel gear 7 drives the threaded rod 6 to rotate, and drives the nut plate 8 and the catalyst box 9 to move downward to the middle position of the preparation tank 1.

[0025] In this embodiment, specifically: the right surface of the nut plate 8 is fixedly connected to the limiting block 14, the inner surface of the preparation tank 1 is fixedly connected to the limiting groove 15, and the outer wall of the limiting block 14 is slidingly connected to the inner wall of the limiting groove 15; the nut plate 8 moves up and down along the direction of the limiting groove 15.

[0026] In this embodiment, specifically: a first through groove 16 is formed on the lower surface of the catalyst box 9, and a second through groove 17 is formed on the upper surface of the catalyst cover plate 12, so as to facilitate the reaction between the catalyst and the external gas.

[0027] In this embodiment, specifically: the front surface of the preparation tank 1 is connected with an air inlet pipe 18 to facilitate the introduction of the gas to be oxidized.

[0028] In this embodiment, specifically: the upper surface of the cover body 2 is connected with an air outlet pipe 19 to facilitate the discharge of formaldehyde gas.

[0029] In this embodiment, specifically: the right surface of the preparation tank 1 is fixedly connected with a fixing plate 20 , and the lower surface of the motor 3 is fixedly connected to the upper surface of the fixing plate 20 , so as to facilitate the installation of the motor 3 .

[0030] In this embodiment, specifically: the lower surface of the preparation tank 1 is evenly welded with supporting legs 21 to facilitate supporting the equipment.

[0031] In this embodiment, specifically: a handle 22 is fixedly connected to the upper surface of the catalyst cover plate 12 to facilitate lifting the catalyst cover plate 12 .

[0032] The working principle of the utility model is as follows: the cover body 2 is rotated to separate from the preparation tank 1, the motor 3 is started to drive the rotating shaft 4 and the active bevel gear 5 to rotate, the driven bevel gear 7 meshing with the active bevel gear 5 drives the threaded rod 6 to rotate, and the threaded rod 6 drives the nut plate 8 and the catalyst box 9 to rise to the upper end, at this time, the mounting block 13 is located inside the rotating groove 11, the four mounting blocks 13 are rotated along the rotating groove 11, so that the position of the mounting blocks 13 corresponds to the position of the mounting groove 10, the catalyst cover plate 12 is taken out upward, and a new catalyst is replaced, and then the four mounting blocks 13 are moved along the mounting groove 11. The inner wall of the mounting groove 10 is pushed in. When the mounting block 13 enters the rotating groove 11, the mounting block 13 is rotated to be staggered with the mounting groove 10 to complete the fixation of the catalyst cover plate 12. The motor 3 is started to drive the rotating shaft 4 and the active bevel gear 5 to rotate, so that the driven bevel gear 7 drives the threaded rod 6 to rotate, and drives the nut plate 8 and the catalyst box 9 to move downward to the middle position of the preparation tank 1. Thus, a production equipment for preparing formaldehyde is formed, the catalyst can be replaced in time, and the installation and removal of the catalyst cover plate 12 are relatively convenient, saving time and effort, and not affecting production efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for preparing formaldehyde, comprising a preparation tank (1), characterized in that: The upper surface of the preparation tank (1) is threadedly connected to a cover body (2); the right surface of the preparation tank (1) is provided with a motor (3); the output shaft end of the motor (3) is fixedly connected to a rotating shaft (4); the rotating shaft (4) passes through the right surface of the preparation tank (1); the rotating shaft (4) is rotatably connected to the inner wall of the preparation tank (1) via a bearing; one end of the rotating shaft (4) extending into the interior of the preparation tank (1) is fixedly connected to a driving bevel gear (5); the lower surface of the inner wall of the preparation tank (1) is rotatably connected to a threaded rod (6) via a bearing; the upper end of the outer wall of the threaded rod (6) is fixedly connected to a driven bevel gear (7); the driving bevel gear (5) is connected to the inner wall of the preparation tank (1) via a bearing; The driven bevel gears (7) are meshingly connected, the outer wall of the threaded rod (6) is threadedly connected to a nut plate (8), the left side wall of the nut plate (8) is fixedly connected to a catalyst box (9), the upper surface of the catalyst box (9) is provided with four installation grooves (10), the inner wall of the catalyst box (9) is provided with a rotation groove (11), the installation grooves (10) and the rotation grooves (11) are connected, the inside of the catalyst box (9) is provided with a catalyst cover plate (12), the outer wall of the catalyst cover plate (12) is welded with four installation blocks (13), and the outer wall of the installation block (13) is slidably connected to the inner wall of the installation groove (10).

2. The production equipment for preparing formaldehyde according to claim 1, characterized in that: The right surface of the nut plate (8) is fixedly connected to a limiting block (14), the inner surface of the preparation tank (1) is fixedly connected to a limiting groove (15), and the outer wall of the limiting block (14) is slidably connected to the inner wall of the limiting groove (15).

3. The production equipment for preparing formaldehyde according to claim 2, characterized in that: The lower surface of the catalyst box (9) is provided with a first through groove (16), and the upper surface of the catalyst cover plate (12) is provided with a second through groove (17).

4. The production equipment for preparing formaldehyde according to claim 2, characterized in that: The front surface of the preparation tank (1) is connected to an air intake pipe (18).

5. The production equipment for preparing formaldehyde according to claim 2, characterized in that: The upper surface of the cover body (2) is connected to an air outlet pipe (19).

6. The production equipment for preparing formaldehyde according to claim 2, characterized in that: A fixing plate (20) is fixedly connected to the right surface of the preparation tank (1), and a lower surface of the motor (3) is fixedly connected to the upper surface of the fixing plate (20).

7. The production equipment for preparing formaldehyde according to claim 6, characterized in that: The lower surface of the preparation tank (1) is evenly welded with supporting legs (21).

8. The production equipment for preparing formaldehyde according to claim 6, characterized in that: A handle (22) is fixedly connected to the upper surface of the catalyst cover plate (12).

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