Pretreatment device for waste methylamine aqueous solution

Abstract

The utility model relates to the technical field of waste methylamine aqueous solution pretreatment, in particular to a waste methylamine aqueous solution pretreatment device which comprises a box body, a fixing plate is fixedly connected inside the box body, and two guide rods distributed front and back are fixedly connected between the left side and the right side of the inner wall of the box body. The outer walls of the two guide rods are jointly and slidably connected with a movable plate attached to the lower end of the fixed plate, a plurality of first through grooves are formed in the outer wall of the fixed plate in a penetrating mode, and a plurality of second through grooves are formed in the outer wall of the movable plate in a penetrating mode; when the rotating disc and the threaded rod are driven by the driving mechanism to rotate, the movable plate can move leftwards and is always in an extruded and attached state with the lower end of the fixed plate, and one part of each first passing groove can be blocked by the movable plate, so that the sizes of the rest parts of the first passing grooves can be adjusted according to actual requirements; therefore, the purpose of conveniently adjusting the passing gap of the wastewater according to the actual condition of impurities in the wastewater so as to improve the use flexibility is achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste methylamine aqueous solution pretreatment technology, specifically a pretreatment device for waste methylamine aqueous solution. Background Technology

[0002] Methylamine aqueous solution, as an important chemical solvent and raw material, is mainly formed by dissolving methylamine (including monomethylamine, dimethylamine, and trimethylamine) in water. It has a colorless to pale yellow appearance and a strong pungent odor. It is widely used in many industrial fields such as pesticides, pharmaceuticals, dyes, rubber, textiles, surfactants, and dyes, playing a key role as a production raw material or solvent. The pretreatment of waste methylamine aqueous solution is an important step in the methylamine wastewater treatment process. Its purpose is to remove suspended solids, large particulate matter, and other impurities from the wastewater, preparing it for subsequent treatment.

[0003] In existing technologies, large particles and suspended solids in wastewater can be removed by using a screen to prevent these substances from clogging subsequent treatment equipment. However, the existing screen gap size is fixed and cannot be adjusted according to the actual situation of impurities in the wastewater. Therefore, there is a risk of leakage or clogging for larger or smaller impurities, resulting in poor flexibility in use. Therefore, it is necessary to propose a pretreatment device for waste methylamine aqueous solution to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for waste methylamine aqueous solution, which has the feature of easily adjusting the gap of wastewater flow according to the actual situation of impurities in the wastewater, thereby improving the flexibility of use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for waste methylamine aqueous solution, comprising a box, a fixed plate fixedly connected inside the box, two guide rods fixedly connected between the left and right sides of the inner wall of the box, and a movable plate slidably connected to the outer walls of the two guide rods and fitting against the lower end of the fixed plate, the outer wall of the fixed plate having a plurality of first through grooves, and the outer wall of the movable plate having a plurality of second through grooves;

[0006] The lower end of the movable plate is fixedly connected to multiple connecting rods, and the other ends of the multiple connecting rods are fixedly connected to a column. The right end of the column is provided with a threaded hole. The right end of the inner wall of the box is rotatably connected to a turntable, and the left end of the turntable is fixedly connected to a threaded rod that extends into the threaded hole and is threadedly connected to it.

[0007] A drive mechanism is provided on the right side of the turntable.

[0008] In order to drive the turntable to rotate and prevent the position of the moving plate from moving, the preferred pretreatment device for waste methylamine aqueous solution of this utility model includes a drive frame fixedly connected to the right end of the box, a worm gear rotatably connected inside the drive frame, a worm wheel meshing with the outer wall of the worm gear, a transmission shaft passing through the outer wall of the box fixedly connected between the worm wheel and the turntable, and a handwheel extending to the outside of the drive frame fixedly connected to the upper end of the worm gear.

[0009] In order to install and fix the protective frame on the outside of the handwheel to prevent the handwheel from being turned accidentally, as a preferred embodiment of the pretreatment device for waste methylamine aqueous solution of this utility model, the upper end of the drive frame is provided with a protective frame located outside the handwheel, and perforated plates are fixedly connected to both the front and rear sides of the protective frame. Two screws passing through the round holes of the perforated plates are fixedly connected to the upper end of the drive frame, and the outer walls of the two screws are threaded with nuts that abut against the upper end of the perforated plates.

[0010] To facilitate observation of the gaps between the remaining portions of the multiple first passage slots and to facilitate the cleaning of impurities inside the tank, the upper end of the tank is preferably detachably connected to a top cover, which is a preferred pretreatment device for waste methylamine aqueous solution according to this utility model.

[0011] To facilitate the connection of the inlet and outlet water pipes, in a preferred embodiment of the pretreatment device for waste methylamine aqueous solution of this utility model, an inlet water connection pipe is connected through the left end of the tank, and an outlet water connection pipe is connected through the lower end of the tank.

[0012] To improve the stability of the turntable rotation, in a preferred embodiment of the pretreatment device for waste methylamine aqueous solution of this utility model, an annular groove is provided at the right end of the inner wall of the tank, and an annular slider that is fixedly connected to the turntable is slidably connected inside the annular groove.

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

[0014] When the drive mechanism rotates the turntable and threaded rod, the moving plate moves to the left and is always pressed against the lower end of the fixed plate. Part of the multiple first passage slots are blocked by the moving plate, so the size of the remaining part of the multiple first passage slots can be adjusted according to actual needs. In this way, it is possible to adjust the gap of wastewater passage according to the actual situation of impurities in the wastewater, thereby improving the flexibility of use. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the present invention.

[0016] Figure 2 This is a partial left-side cross-sectional view of the present invention;

[0017] Figure 3 This is a partial right-side cross-sectional view of the present invention.

[0018] In the diagram: 1. Housing; 2. Fixed plate; 3. Moving plate; 4. First through slot; 5. Second through slot; 6. Column; 7. Threaded hole; 8. Turntable; 9. Threaded rod; 10. Drive frame; 11. Worm gear; 12. Worm wheel; 13. Handwheel; 14. Protective frame; 15. Guide rod; 16. Connecting rod; 17. Perforated plate; 18. Screw. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Please see Figures 1 to 3 A pretreatment device for waste methylamine aqueous solution includes a box 1, a fixed plate 2 is fixedly connected inside the box 1, two guide rods 15 distributed front and back are fixedly connected between the left and right sides of the inner wall of the box 1, and a movable plate 3 that is attached to the lower end of the fixed plate 2 is slidably connected to the outer wall of the two guide rods 15. The outer wall of the fixed plate 2 is provided with multiple first through grooves 4, and the outer wall of the movable plate 3 is provided with multiple second through grooves 5.

[0022] Multiple connecting rods 16 are fixedly connected to the lower end of the movable plate 3. The other ends of the multiple connecting rods 16 are fixedly connected to the column 6. A threaded hole 7 is opened at the right end of the column 6. A turntable 8 is rotatably connected to the right end of the inner wall of the box 1. A threaded rod 9 extending into the threaded hole 7 and threadedly connected to it is fixedly connected to the left end of the turntable 8.

[0023] A drive mechanism is located on the right side of turntable 8.

[0024] In this embodiment: During use, the drive mechanism drives the turntable 8 to rotate, which in turn drives the threaded rod 9 to rotate. Since the threaded rod 9 is threaded into the inside of the threaded hole 7, it drives the column 6 to move to the left. At the same time, multiple connecting rods 16 drive the moving plate 3 to move to the left. During the movement, the moving plate 3 is always in a squeezed and fitted state with the lower end of the fixed plate 2. The two guide rods 15 can improve the stability of the moving plate 3 during the movement. During this process, a portion of the multiple first passage slots 4 will be blocked by the moving plate 3, so the size of the remaining portion of the multiple first passage slots 4 can be adjusted according to actual needs. In this way, it is possible to adjust the gap of wastewater passage according to the actual situation of impurities in the wastewater, thereby improving the flexibility of use.

[0025] During operation, the waste methylamine aqueous solution enters the interior of the tank 1 through the inlet pipe. The wastewater passes through the remaining parts of multiple first passage channels 4 and multiple second passage channels 5, while impurities are trapped at the upper end of the fixed plate 2. The filtered wastewater enters the next treatment process through the outlet pipe.

[0026] As a technical optimization of this utility model, the drive mechanism includes a drive frame 10 fixedly connected to the right end of the housing 1. A worm gear 11 is rotatably connected inside the drive frame 10. A worm wheel 12 is meshed with the outer wall of the worm gear 11. A transmission shaft passing through the outer wall of the housing 1 is fixedly connected between the worm wheel 12 and the turntable 8. A handwheel 13 extending to the outside of the drive frame 10 is fixedly connected to the upper end of the worm gear 11.

[0027] In this embodiment: the worm gear 11 is rotated by the handwheel 13, which in turn drives the worm wheel 12 to rotate, and then drives the turntable 8 to rotate through the rotating shaft. Since the worm gear 11 and the worm wheel 12 have a self-locking characteristic, the stability of the turntable 8 in a stationary state can be improved, thus preventing the position of the moving plate 3 from moving.

[0028] As a technical optimization of this utility model, the upper end of the drive frame 10 is provided with a protective frame 14 located outside the handwheel 13. The front and rear sides of the protective frame 14 are fixedly connected with perforated plates 17. The upper end of the drive frame 10 is fixedly connected with two screws 18 that pass through the round holes of the perforated plates 17. The outer walls of the two screws 18 are threaded with nuts that abut against the upper end of the perforated plates 17.

[0029] In this embodiment: two screws 18 are passed through the two round holes of two perforated plates 17, and two nuts are screwed onto the outer walls of the two screws 18 respectively, and the two nuts are pressed tightly against the two perforated plates 17 respectively, so that the protective frame 14 can be installed and fixed on the outside of the handwheel 13, thus preventing the handwheel 13 from being turned accidentally.

[0030] As a technical optimization of this utility model, the upper end of the box 1 is detachably connected with a top cover.

[0031] In this embodiment: by setting a top cover, when it is opened, the gaps of the remaining parts of the multiple first passage slots 4 can be easily observed, and it is convenient to clean the impurities inside the box 1.

[0032] As a technical optimization of this utility model, a water inlet pipe is connected through the left end of the box 1, and a water outlet pipe is connected through the lower end of the box 1.

[0033] In this embodiment: an inlet connection pipe is provided to facilitate connection to the inlet pipe, and an outlet connection pipe is provided to facilitate connection to the outlet pipe.

[0034] As a technical optimization of this utility model, an annular groove is provided at the right end of the inner wall of the box 1, and an annular slider that is fixedly connected to the turntable 8 is slidably connected inside the annular groove.

[0035] In this embodiment, an annular groove and an annular slider are provided to improve the stability of the rotation of the turntable 8.

[0036] Working principle: In use, the worm gear 11 is first rotated by the handwheel 13, which in turn drives the worm wheel 12 to rotate. This, in turn, drives the turntable 8 and the threaded rod 9 to rotate via the rotating shaft. Since the threaded rod 9 is threaded into the threaded hole 7, it causes the column 6 to move to the left. Simultaneously, multiple connecting rods 16 drive the moving plate 3 to move to the left. During this movement, the moving plate 3 remains in a pressed and close contact with the lower end of the fixed plate 2. Two guide rods 15 enhance the stability of the moving plate 3 during movement. During this process, a portion of the multiple first passage slots 4 is blocked by the moving plate 3, allowing adjustment of the remaining portions of the multiple first passage slots 4 as needed. The size of the gap is adjusted in this way to facilitate the adjustment of the wastewater passage according to the actual situation of impurities in the wastewater, thereby improving the flexibility of use. After the adjustment is completed, the two screws 18 are passed through the two round holes of the two perforated plates 17, and the two nuts are screwed onto the outer wall of the two screws 18 respectively, and the two nuts are pressed tightly against the two perforated plates 17 respectively, so that the protective frame 14 can be installed and fixed on the handwheel 13 to prevent the handwheel 13 from being turned accidentally. Since the worm gear 11 and the worm wheel 12 have a self-locking characteristic, the stability of the turntable 8 in the static state can be improved, thus preventing the position of the moving plate 3 from moving.

[0037] During operation, the waste methylamine aqueous solution enters the interior of the tank 1 through the inlet pipe. The wastewater passes through the remaining parts of multiple first passage channels 4 and multiple second passage channels 5, while impurities are trapped at the upper end of the fixed plate 2. The filtered wastewater enters the next treatment process through the outlet pipe.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pretreatment device for waste methylamine aqueous solution, comprising a housing (1), characterized in that: The box (1) is fixedly connected to a fixed plate (2). Two guide rods (15) are fixedly connected between the left and right sides of the inner wall of the box (1). The outer walls of the two guide rods (15) are slidably connected to a movable plate (3) that is in contact with the lower end of the fixed plate (2). The outer wall of the fixed plate (2) is provided with multiple first through slots (4). The outer wall of the movable plate (3) is provided with multiple second through slots (5). The lower end of the movable plate (3) is fixedly connected to a plurality of connecting rods (16), and the other ends of the plurality of connecting rods (16) are fixedly connected to a column (6). The right end of the column (6) is provided with a threaded hole (7). The right end of the inner wall of the box (1) is rotatably connected to a turntable (8), and the left end of the turntable (8) is fixedly connected to a threaded rod (9) that extends into the threaded hole (7) and is threadedly connected thereto. A drive mechanism is provided on the right side of the turntable (8).

2. The pretreatment device for waste methylamine aqueous solution according to claim 1, characterized in that: The drive mechanism includes a drive frame (10) fixedly connected to the right end of the housing (1). A worm gear (11) is rotatably connected inside the drive frame (10). A worm wheel (12) is meshed with the outer wall of the worm gear (11). A transmission shaft that passes through the outer wall of the housing (1) is fixedly connected between the worm wheel (12) and the turntable (8). A handwheel (13) extending to the outside of the drive frame (10) is fixedly connected to the upper end of the worm gear (11).

3. The pretreatment device for waste methylamine aqueous solution according to claim 2, characterized in that: The upper end of the drive frame (10) is provided with a protective frame (14) located outside the handwheel (13). The front and rear sides of the protective frame (14) are fixedly connected with perforated plates (17). The upper end of the drive frame (10) is fixedly connected with two screws (18) that pass through the round holes of the perforated plates (17). The outer walls of the two screws (18) are threaded with nuts that abut against the upper end of the perforated plates (17).

4. The pretreatment device for waste methylamine aqueous solution according to claim 1, characterized in that: The top cover is detachably connected to the upper end of the box (1).

5. The pretreatment device for waste methylamine aqueous solution according to claim 1, characterized in that: A water inlet pipe is connected through the left end of the box (1), and a water outlet pipe is connected through the lower end of the box (1).

6. The pretreatment device for waste methylamine aqueous solution according to claim 1, characterized in that: An annular groove is provided at the right end of the inner wall of the box (1), and an annular slider that is fixedly connected to the turntable (8) is slidably connected inside the annular groove.

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