An integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials

Abstract

This utility model discloses an integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials, belonging to the technical field of methyl acetate raw material pretreatment. The key technical features include a raw material tank, with a support frame and a discharge pipe fixedly connected to the bottom. A filtration mechanism and a connecting frame are arranged on the front side of the discharge pipe, and a drying mechanism and a drying rack are arranged at the bottom of the connecting frame. The drying mechanism includes a ventilation rack, a protective net, several heating rods, a heat insulation plate, and a spray drying head. The interior of the ventilation rack is fixedly connected to the surface of the drying rack. This invention solves the problems of existing integrated devices for impurity filtration and drying in methyl acetate raw material pretreatment, which mostly rely on stirring paddles to agitate the raw material and allow it to contact the airflow inside the ventilation pipe for drying. This results in poor material agitation and heating uniformity, leading to slow drying speed and low overall drying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of methyl acetate raw material pretreatment technology, and in particular to an integrated device for impurity filtration and drying in methyl acetate raw material pretreatment. Background Technology

[0002] The integrated impurity filtration and drying device for methyl acetate raw material pretreatment is a device used to pretreat methyl acetate raw materials. It integrates the two key pretreatment steps of impurity filtration and drying into one device, aiming to efficiently and continuously remove solid impurities and moisture from methyl acetate raw materials to meet the requirements of raw material purity and dryness in subsequent production processes.

[0003] In existing pretreatment tanks, the waste gas and waste liquid are mixed only through natural gas-liquid mixing, lacking measures to accelerate the mixing of waste gas and waste liquid. As a result, the mixing speed of waste gas and waste liquid is relatively slow, and the efficiency of pretreatment needs to be improved.

[0004] An existing patent (publication number: CN222518404U) discloses a pretreatment device for raw materials used in the production of methyl acetate, including a reaction cylinder. A sealing cover is provided at the upper opening of the reaction cylinder. A partition plate is fixedly connected inside the reaction cylinder, dividing the interior of the reaction cylinder into a mixing chamber and a waste gas chamber. The mixing chamber is located below the waste gas chamber. A water inlet pipe and an air inlet pipe are fixedly connected to the side wall of the reaction cylinder. The water inlet pipe is in communication with the mixing chamber. This invention introduces waste liquid into the mixing chamber through the water inlet pipe and introduces waste gas into the jet pipe through the air inlet pipe. The waste gas is then injected at high speed into the waste liquid through a nozzle on the jet pipe. Simultaneously, a motor is started, driving a rotating column to rotate, which in turn drives a stirring rod to stir the waste liquid. This allows the waste gas entering the waste liquid to mix quickly with the waste liquid, thereby accelerating the rate at which methyl acetate in the waste gas dissolves into the waste liquid, and effectively improving the pretreatment efficiency of the methyl acetate raw material.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, these solutions have certain limitations in practice. Most existing integrated impurity filtration and drying devices for methyl acetate raw material pretreatment rely on stirring paddles to agitate the raw materials and allow them to come into contact with the airflow inside the ventilation pipes during drying. This results in poor material agitation and uniform heating, leading to slow drying speeds and low overall drying efficiency.

[0006] Therefore, an integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials is proposed. Utility Model Content

[0007] The purpose of this invention is to provide an integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials. This device solves the problem that most existing integrated devices for impurity filtration and drying in the pretreatment of methyl acetate raw materials rely on stirring the raw materials with a paddle to make them come into contact with the airflow inside the ventilation pipe. This results in poor material agitation and heating uniformity, leading to slow drying speed and low overall drying efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials, comprising a raw material tank, a support frame and a discharge pipe fixedly connected to the bottom of the raw material tank, a filtration mechanism and a connecting frame provided on the front side of the discharge pipe, and a drying mechanism and a drying frame provided at the bottom of the connecting frame;

[0009] The drying mechanism includes a ventilation frame, a protective net, several heating rods, a heat insulation plate, and a spray drying head. The interior of the ventilation frame is fixedly connected to the surface of the drying frame, the surface of the protective net is fixedly connected to the interior of the ventilation frame, the top of the heating rod is fixedly connected to the bottom of the heat insulation plate, the top of the heat insulation plate is fixedly connected to the bottom of the spray drying head, and the surface of the spray drying head is fixedly connected to the interior of the drying frame.

[0010] Preferably, the filtration mechanism includes a movable plate disposed on the front side of the discharge pipe, and two filter plate holders are fixedly connected to the bottom of the movable plate.

[0011] Preferably, the bottom of the movable plate is provided with a filter frame, and the top of the filter frame has two connecting slots.

[0012] Preferably, limiting blocks are fixedly connected to opposite sides of the two filter plate holders, and the surface of the limiting blocks is in contact with the inside of the connecting groove.

[0013] Preferably, sealing gaskets are fixedly connected to both sides of the filter plate frame, and the surface of the sealing gaskets is in close contact with the inside of the connecting groove.

[0014] Preferably, a magnetic block is fixedly connected to the bottom of the movable plate, and the bottom of the magnetic block is magnetically attracted to the top of the filter frame.

[0015] Preferably, a connecting pipe is fixedly connected to the front side of the filter frame, the front side of the connecting pipe is fixedly connected to the rear side of the connecting frame, and a base is fixedly connected to the bottom of the drying frame.

[0016] Preferably, the bottom of the discharge pipe is fixedly connected to a Y-shaped pipe, and a coarse filter screen is provided inside the Y-shaped pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application moves the raw material into the interior of the spray drying rack via a connecting frame, causing the spray drying rack to disperse the raw material into tiny droplets and move them into the interior of the drying rack. This increases the contact area with the hot air generated by the heating rods inside the drying rack, and with the assistance of ventilation from the ventilation rack, the moisture inside the raw material is dried quickly.

[0019] 2. This application uses a Y-shaped tube to perform initial filtration of the raw material through a coarse filter screen. Then, the raw material is moved into the interior of the filter frame. Under the sealing and limiting of the sealing gasket and the limiting block, the filter frame fully filters the raw material through the filter plate frame. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram of the connection between the Y-shaped tube and the coarse filter screen in this utility model;

[0022] Figure 3 This is a three-dimensional connection diagram of the filtration mechanism in this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the bottom of the movable plate in this utility model;

[0024] Figure 5 This is a three-dimensional connection diagram of the drying rack and the base in this utility model;

[0025] Figure 6 This is a three-dimensional connection diagram of the drying mechanism in this utility model.

[0026] In the diagram, 1. Raw material tank; 2. Support frame; 3. Discharge pipe; 4. Filtration mechanism; 401. Moving plate; 402. Filter plate frame; 403. Limiting block; 404. Connecting groove; 405. Filter rack; 5. Drying rack; 6. Drying mechanism; 601. Ventilation rack; 602. Protective net; 603. Heating rod; 604. Heat insulation plate; 605. Spray drying head; 7. Coarse filter screen; 8. Y-shaped pipe; 9. Connecting pipe; 10. Connecting frame; 11. Sealing gasket; 12. Magnetic block; 13. Base. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] An integrated device for impurity filtration and drying in the pretreatment of methyl acetate raw materials includes a raw material tank 1, a support frame 2 and a discharge pipe 3 fixedly connected to the bottom of the raw material tank 1, a filtration mechanism 4 and a connecting frame 10 provided on the front side of the discharge pipe 3, and a drying mechanism 6 and a drying rack 5 provided at the bottom of the connecting frame 10.

[0030] The drying mechanism 6 includes a ventilation frame 601, a protective net 602, several heating rods 603, a heat insulation plate 604, and a spray drying head 605. The interior of the ventilation frame 601 is fixedly connected to the surface of the drying frame 5. The surface of the protective net 602 is fixedly connected to the interior of the ventilation frame 601. The top of the heating rod 603 is fixedly connected to the bottom of the heat insulation plate 604. The top of the heat insulation plate 604 is fixedly connected to the bottom of the spray drying head 605. The surface of the spray drying head 605 is fixedly connected to the interior of the drying frame 5.

[0031] In this embodiment: by fixing the top of the spray drying rack 5 to the top of the connecting frame 10, the raw material inside the discharge pipe 3 can be easily moved to the inside of the spray drying rack 5 through the connecting frame 10. The spray drying rack 5 disperses the raw material into tiny droplets and moves them to the inside of the drying rack 5, thereby increasing the contact area with the hot air generated by the heating rod 603 inside the drying rack 5. With the auxiliary ventilation of the ventilation rack 601, the moisture inside the raw material is dried quickly.

[0032] Specifically, such as Figure 3 As shown, the filter mechanism 4 includes a movable plate 401 disposed on the front side of the discharge pipe 3, and two filter plate holders 402 are fixedly connected to the bottom of the movable plate 401.

[0033] Specifically, such as Figure 3 As shown, a filter rack 405 is provided at the bottom of the movable plate 401, and two connecting slots 404 are provided at the top of the filter rack 405.

[0034] Specifically, such as Figure 3 As shown, limit blocks 403 are fixedly connected to opposite sides of the two filter plate holders 402, and the surface of the limit block 403 is in contact with the inside of the connecting groove 404.

[0035] In this embodiment: by making the surface of the limiting block 403 contact the inside of the connecting groove 404, the limiting block 403 can be conveniently limited to the filter plate frame 402 through the connecting groove 404, so that the bottom of the moving plate 401 is fixedly connected to the top of the filter plate frame 402, thereby facilitating the moving plate 401 to filter the raw material through the filter plate frame 402, achieving the effect of filtering the raw material.

[0036] Specifically, such as Figure 3 , Figure 4 As shown, sealing gaskets 11 are fixedly connected to both sides of the filter plate frame 402, and the surface of the sealing gasket 11 is in close contact with the inside of the connecting groove 404.

[0037] Specifically, such as Figure 3 , Figure 4 As shown, a magnetic block 12 is fixedly connected to the bottom of the movable plate 401, and the bottom of the magnetic block 12 is magnetically attracted to the top of the filter frame 405.

[0038] In this embodiment: by making the surface of the sealing gasket 11 in close contact with the inside of the connecting groove 404, the sealing gasket 11 can easily seal the connecting groove 404, and the bottom of the magnetic block 12 can be magnetically attracted to the top of the filter frame 405, thereby making it easy for the magnetic block 12 to fix the filter frame 405 and the moving plate 401, achieving the effect of connecting the filter frame 405 and the moving plate 401.

[0039] Specifically, such as Figure 3 , Figure 5 As shown, a connecting pipe 9 is fixedly connected to the front side of the filter frame 405, and the front side of the connecting pipe 9 is fixedly connected to the rear side of the connecting frame 10. A base 13 is fixedly connected to the bottom of the drying frame 5.

[0040] Specifically, such as Figure 2 As shown, a Y-shaped pipe 8 is fixedly connected to the bottom of the discharge pipe 3, and a coarse filter screen 7 is installed inside the Y-shaped pipe 8.

[0041] In this embodiment: by fixing the front side of the connecting pipe 9 to the rear side of the connecting frame 10, the raw material can be easily moved through the connecting pipe 9 to the inside of the connecting frame 10. The coarse filter screen 7 is installed inside the Y-shaped pipe 8, so that the Y-shaped pipe 8 can easily perform auxiliary filtration of the raw material through the coarse filter screen 7, thus achieving the effect of auxiliary filtration of the raw material.

[0042] Working principle: During the pretreatment of raw materials, the raw materials are moved from the raw material tank 1 to the inside of the discharge pipe 3. The Y-shaped pipe 8 filters the raw materials through the coarse filter screen 7 for the first time. Then, the raw materials are moved to the inside of the filter frame 405. Under the sealing and limiting of the sealing gasket 11 and the limiting block 403, the filter frame 405 filters the raw materials thoroughly through the filter plate frame 402. Then, the filtered raw materials are moved through the connecting pipe 9 to the inside of the connecting frame 10, and then through the connecting frame 10 to the inside of the spray drying frame 5. The spray drying frame 5 disperses the raw materials into tiny droplets and moves them into the inside of the drying frame 5, thereby increasing the contact area with the hot air generated by the heating rod 603 inside the drying frame 5. With the auxiliary ventilation of the ventilation frame 601, the moisture inside the raw materials is dried quickly. This solves the problem that most existing integrated impurity filtration and drying devices for methyl acetate raw material pretreatment rely on stirring the raw materials with a paddle to make them contact the airflow inside the ventilation pipe for drying. This results in poor material agitation and heating uniformity, leading to slow material drying speed and low overall drying efficiency.

[0043] 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. An integrated apparatus for filtering and drying of impurities for pretreatment of methyl acetate raw material, comprising a raw material tank (1), characterized in that: The bottom of the raw material tank (1) is fixedly connected to a support frame (2) and a discharge pipe (3). A filter mechanism (4) and a connecting frame (10) are provided on the front side of the discharge pipe (3). A drying mechanism (6) and a drying rack (5) are provided at the bottom of the connecting frame (10). The drying mechanism (6) includes a ventilation frame (601), a protective net (602), several heating rods (603), a heat insulation plate (604), and a spray drying head (605). The interior of the ventilation frame (601) is fixedly connected to the surface of the drying frame (5). The surface of the protective net (602) is fixedly connected to the interior of the ventilation frame (601). The top of the heating rod (603) is fixedly connected to the bottom of the heat insulation plate (604). The top of the heat insulation plate (604) is fixedly connected to the bottom of the spray drying head (605). The surface of the spray drying head (605) is fixedly connected to the interior of the drying frame (5).

2. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 1, characterized in that: The filtration mechanism (4) includes a movable plate (401) disposed on the front side of the discharge pipe (3), and two filter plate frames (402) are fixedly connected to the bottom of the movable plate (401).

3. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 2, characterized in that: The bottom of the movable plate (401) is provided with a filter frame (405), and the top of the filter frame (405) has two connecting slots (404).

4. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 3, characterized in that: Two filter plate holders (402) are fixedly connected to limit blocks (403) on opposite sides, and the surface of the limit blocks (403) is in contact with the interior of the connecting groove (404).

5. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 3, characterized in that: Both sides of the filter plate frame (402) are fixedly connected with sealing gaskets (11), and the surface of the sealing gaskets (11) is in close contact with the inside of the connecting groove (404).

6. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 3, characterized in that: A magnetic block (12) is fixedly connected to the bottom of the movable plate (401), and the bottom of the magnetic block (12) is magnetically attracted to the top of the filter frame (405).

7. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 3, characterized in that: The front side of the filter rack (405) is fixedly connected to the connecting pipe (9), the front side of the connecting pipe (9) is fixedly connected to the rear side of the connecting frame (10), and the bottom of the drying rack (5) is fixedly connected to the base (13).

8. The integrated impurity filtration and drying device for methyl acetate raw material pretreatment according to claim 1, characterized in that: The bottom of the discharge pipe (3) is fixedly connected to a Y-shaped pipe (8), and a coarse filter screen (7) is provided inside the Y-shaped pipe (8).

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