Methanol filter for low-temperature methanol production

Abstract

The utility model relates to the technical field of methanol filtration, in particular to a methanol filter for low-temperature methanol production, which comprises a filter barrel, a pressurizing mechanism and an air bag, a filter screen is arranged in the filter barrel, and the pressurizing mechanism is arranged at the top of the filter screen; the pressurizing mechanism comprises a power device, a cam and a pressurizing plate; the power device is arranged on the side wall of the filtering barrel, an output shaft of the power device is rotationally arranged in the filtering barrel, and the cam is arranged on the output shaft; a plurality of sliding grooves are formed in the inner side wall of the filtering barrel, reset blocks are arranged at the bottoms of the sliding grooves, and springs are arranged in the reset blocks; the pressurizing plate is arranged at the bottom of the cam, a plurality of sliding blocks are arranged on the peripheral wall of the pressurizing plate and slidably arranged in the sliding grooves, connecting blocks are arranged at the bottoms of the sliding blocks, and the bottoms of the connecting blocks are connected with springs; the air bag is arranged between the pressurizing plate and the filter screen and is communicated with the interior of the filter barrel. When methanol is filtered, pressure difference can be formed in the filtering barrel, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of methanol filtration, in particular to a methanol filter for low-temperature methanol production. Background Art

[0002] Methanol is a basic organic chemical raw material for the production of methanol, synthetic fibers, synthetic resins, pharmaceuticals, pesticides, etc., and is also a good solvent and fuel. With the continuous development of the economy, the demand for methanol is also increasing continuously.

[0003] During the production process of low-temperature methanol, a filter is required to filter it to avoid the influence of impurities in methanol on its use. Common low-temperature methanol filters, such as multi-bag filters for methanol impurities, filter methanol by inputting methanol into the filter, and the filter belt in the filter filters methanol.

[0004] However, when the existing filter filters, the impurities in methanol will block the filter screen, resulting in low filtration efficiency, and the filter screen needs to be cleaned and replaced frequently, which affects the filtration speed. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a methanol filter for low-temperature methanol production. When filtering methanol, this filter can form a pressure difference in the filter barrel to accelerate the filtration speed of methanol; at the same time, through the settings of the airbag, spring and reset block, the pressure plate can be quickly reset to prepare for the next pressurization operation and improve the filtration efficiency.

[0006] To achieve the above object, according to an embodiment of the first aspect of the utility model, a methanol filter for low-temperature methanol production is provided, which includes a filter barrel, a pressurization mechanism and an airbag. The side wall of the filter barrel is provided with a liquid inlet, and a filter screen is arranged inside the filter barrel. The pressurization mechanism is arranged on the top of the filter screen; the pressurization mechanism includes a power device, a cam and a pressure plate. The power device is arranged on the side wall of the filter barrel, and the output shaft of the power device is rotatably arranged inside the filter barrel. The cam is arranged on its output shaft. A plurality of chutes are formed in the inner side wall of the filter barrel. A reset block is arranged at the bottom of the chute, and a spring is arranged inside the reset block. The pressure plate is arranged at the bottom of the cam, and a plurality of sliders are arranged on the outer peripheral wall of the pressure plate. The sliders are slidably arranged in the chutes. A connecting block is arranged at the bottom of the slider, and the bottom of the connecting block is connected to the spring. The airbag is arranged between the pressure plate and the filter screen and is communicated with the inside of the filter barrel.

[0007] As a further scheme of the utility model: a protection pad is arranged on the pressure plate, and the cam abuts against the protection pad when rotating.

[0008] As a further solution of the present utility model: a limiting ring is arranged inside the filter barrel, the limiting ring is located at the top of the sliding groove, and the pressing plate is arranged below the limiting ring.

[0009] As a further solution of the present utility model: the liquid inlet is arranged below the sliding groove.

[0010] As a further solution of the present utility model: a collection box is arranged at the bottom of the filter barrel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the driving device drives the output shaft to rotate, driving the cam to move; the rotation of the cam continuously presses the pressing plate, causing the pressing plate to move up and down in the sliding groove inside the filter barrel, so that when filtering methanol, a pressure difference is formed inside the filter barrel, accelerating the filtering speed of methanol. Through the installation and cooperation of the sliding groove and the slider, the pressing plate can move stably. At the same time, through the settings of the airbag, the spring and the reset block, the pressing plate can quickly reset, preparing for the next pressing operation and improving the filtering efficiency.

[0013] 2. In the present utility model, by setting the protection pad, when the cam rotates, it abuts against the protection pad instead of directly contacting the pressing plate, which can effectively prevent the pressing plate from being damaged and prolong the service life of the pressing plate.

[0014] 3. In the present utility model, by setting the limiting ring to limit the maximum rising height of the pressing plate, it is ensured that under the action of the cam, the pressing plate can move up and down safely and stably within a predetermined range, without detaching from the sliding groove or colliding with other parts of the filter barrel due to excessive rising.

[0015] 4. In the present utility model, by arranging the liquid inlet below the sliding groove, it can ensure that methanol directly flows to the filter screen after entering the filter barrel, reducing the residence time of methanol in the filter barrel and possible precipitation, and at the same time avoiding the contact between the pressing plate and the methanol surface during the up and down movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an internal cross-sectional view of a methanol filter for low-temperature methanol production.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the installation of the pressurizing mechanism.

[0018] Figure 3 It is a structural schematic diagram of the inner wall of the filter barrel.

[0019] Reference numerals in the drawings: 1, filter barrel; 11, liquid inlet; 12, chute; 121, reset block; 122, spring; 2, filter screen; 3, power device; 31, output shaft; 32, cam; 4, pressure plate; 41, slider; 411, connecting block; 42, protective pad; 5, airbag; 6, limit ring; 7, collection box. Detailed implementation manners

[0020] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 3 shown, a methanol filter for low-temperature methanol production includes a filter barrel 1, a pressurizing mechanism and an airbag 5. The side wall of the filter barrel 1 is provided with a liquid inlet 11, and a filter screen 2 is arranged inside the filter barrel 1; methanol enters the inside of the filter barrel 1 through the liquid inlet 11 on the side wall of the filter barrel 1, and impurities and particulate matters in methanol can be preliminarily intercepted through the filter screen 2.

[0022] The pressurizing mechanism is arranged on the top of the filter screen 2; the pressurizing mechanism includes a power device 3, a cam 32 and a pressure plate 4; the power device 3 is arranged on the side wall of the filter barrel 1, and the output shaft 31 of the power device 3 is rotatably arranged inside the filter barrel 1, and the cam 32 is arranged on its output shaft 31; a plurality of chutes 12 are opened on the inner side wall of the filter barrel 1, a reset block 121 is arranged at the bottom of the chute 12, and a spring 122 is arranged inside the reset block 121; the pressure plate 4 is arranged at the bottom of the cam 32, and a plurality of sliders 41 are arranged on the outer peripheral wall of the pressure plate 4. The sliders 41 are slidably arranged in the chutes 12, a connecting block 411 is arranged at the bottom of the slider 41, and the bottom of the connecting block 411 is connected to the spring 122; the airbag 5 is arranged between the pressure plate 4 and the filter screen 2 and is communicated with the inside of the filter barrel 1.

[0023] The output shaft 31 is driven to rotate by the power device 3, driving the cam 32 to move; the cam 32 rotates to continuously press the pressure plate 4, so that the pressure plate 4 moves up and down in the chute 12 inside the filter barrel 1, so that a pressure difference is formed inside the filter barrel 1 when filtering methanol, accelerating the filtering speed of methanol. Through the installation and cooperation of the chute 12 and the slider 41, the pressure plate 4 can move stably. At the same time, through the settings of the airbag 5, the spring 122 and the reset block 121, the pressure plate 4 can quickly reset, preparing for the next pressurization operation and improving the filtering efficiency.

[0024] A protective pad 42 is provided on the pressure plate 4, and when the cam 32 rotates, it abuts against the protective pad 42.

[0025] By providing the protective pad 42, when the cam 32 rotates, it abuts against the protective pad 42 instead of directly contacting the pressure plate 4, which can effectively prevent the pressure plate 4 from being damaged and extend the service life of the pressure plate 4.

[0026] A limiting ring 6 is provided inside the filter barrel 1. The limiting ring 6 is located at the top of the sliding groove 12, and the pressure plate 4 is provided below the limiting ring 6.

[0027] By providing the limiting ring 6 to limit the maximum rising height of the pressure plate 4, it ensures that under the action of the cam 32, the pressure plate 4 can move up and down safely and stably within a predetermined range without detaching from the sliding groove 12 or colliding with other parts of the filter barrel 1 due to excessive rising.

[0028] The liquid inlet 11 is provided below the sliding groove 12.

[0029] By setting the liquid inlet 11 below the sliding groove 12, it can ensure that methanol directly flows towards the filter net 2 after entering the filter barrel 1, reducing the residence time of methanol in the filter barrel 1 and possible precipitation, and at the same time avoiding the contact between the pressure plate 4 and the surface of methanol during the up and down movement.

[0030] A collection box 7 is provided at the bottom of the filter barrel 1.

[0031] The filtered methanol is collected by the collection box 7.

[0032] The working principle of the present utility model: Methanol is introduced into the filter barrel 1 through the liquid inlet 11. When methanol passes through the filter net 2, it is preliminarily filtered to remove impurities and particulate matters. During the filtering process, the driving power device 3 is driven. The power device 3 drives the cam 32 to rotate. The power device 3 is preferably a rotary motor. The cam 32 drives the pressure plate 4 to move up and down in the sliding groove 12, forming a pressure difference inside the filter barrel 1, thereby accelerating the filtering speed of methanol. Among them, through the installation and cooperation of the sliding groove 12 and the slider 41, the pressure plate 4 can move stably. At the same time, through the settings of the airbag 5, the spring 122 and the reset block 121, the pressure plate 4 can quickly reset, preparing for the next pressurization operation and improving the filtering efficiency. And the airbag 5 is filled with gas in the initial state for pressure regulation.

[0033] The above embodiments are only used to illustrate the technical method of the present utility model rather than to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present utility model.

Claims

1. A methanol filter for low-temperature methanol production, comprising a filter barrel (1), a pressurizing mechanism and an air bag (5), wherein the filter barrel (1) is provided with a liquid inlet (11) on its side wall, and a filter screen (2) is provided inside the filter barrel (1), and the pressurizing mechanism is provided on the top of the filter screen (2); It is characterized in that The pressurizing mechanism comprises a power device (3), a cam (32) and a pressurizing plate (4); the power device (3) is arranged on the side wall of the filter barrel (1), and the output shaft (31) of the power device (3) is rotatably arranged in the filter barrel (1), and the cam (32) is arranged on its output shaft (31); The filter barrel (1) is provided with a plurality of slide grooves (12) on the inner side wall, a reset block (121) is provided at the bottom of the slide groove (12), and a spring (122) is provided inside the reset block (121); the pressure plate (4) is provided at the bottom of the cam (32), and a plurality of sliders (41) are provided on the outer peripheral wall of the pressure plate (4), the sliders (41) are slidably provided in the slide groove (12), a connecting block (411) is provided at the bottom of the slider (41), and the bottom of the connecting block (411) is connected to the spring (122); The air bag (5) is arranged between the pressure plate (4) and the filter screen (2), and is communicated with the interior of the filter barrel (1).

2. A methanol filter for low-temperature methanol production according to claim 1, characterized in that: A protection pad (42) is provided on the pressure plate (4), and the cam (32) abuts against the protection pad (42) when rotating.

3. A methanol filter for low-temperature methanol production according to claim 1, characterized in that: A limiting ring (6) is arranged in the filter barrel (1), the limiting ring (6) is located at the top of the slide groove (12), and the pressure plate (4) is arranged below the limiting ring (6).

4. The methanol filter for low-temperature methanol production according to claim 1, characterized in that: The liquid inlet (11) is arranged below the slide groove (12).

5. The methanol filter for low-temperature methanol production according to claim 1, characterized in that: A collecting box (7) is arranged at the bottom of the filter barrel (1).

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