Multi-stage filtering vacuum drying oven

Abstract

The utility model discloses a multistage filtering vacuum drying oven, which belongs to the field of vacuum drying ovens and comprises a drying oven body, a guide pipe arranged at one end of the drying oven body in a penetrating manner and a feeding pipe arranged at the top of the drying oven body. The sliding plate is in sliding connection with the drying box body, and an air cylinder is fixedly installed in the drying box body. The multi-stage filtering vacuum drying box is simple in structure and convenient to use, the screening frame and the guide hopper are arranged, the air cylinder drives the sliding plate and the screening frame to slide in a reciprocating mode, materials in the screening frame are effectively screened, meanwhile, the materials are dried in the whole screening process, the drying and screening efficiency is greatly improved, and the drying effect is good. When the screening frame slides along the inclined groove, the discharging opening can be automatically opened through contact with the supporting rod, automatic discharging of materials is achieved, the steps of manual operation are reduced, and the automation degree of a production line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum drying ovens, in particular to a multi-stage filtering vacuum drying oven. Background Art

[0002] Multi-stage filtration vacuum drying oven is a highly efficient drying equipment, which combines vacuum drying technology with multi-stage filtration system to achieve better purity and drying effect of materials during the drying process. This equipment is widely used in many fields, such as chemical, pharmaceutical, food, etc.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN211503636U discloses a filtering structure of a vacuum drying box, including a vacuum drying box body, the bottom of which is fixedly connected with supporting feet, and the left and right side walls of the vacuum drying box body are fixedly connected with heating plates.

[0004] The above-mentioned filtering structure opens the movable door, places the items to be dried on the top of the placement plate, and then closes the movable door to seal the vacuum drying box to prevent gas leakage during the drying process of the items. The sealing performance of the vacuum drying box can be improved by installing a sealing gasket; however, it cannot screen the materials dried inside the drying box during use, and the materials are in a static state during the drying process, and the side in contact with the placement plate is difficult to dry, which reduces the drying efficiency.

[0005] Therefore, the utility model provides a multi-stage filtering vacuum drying box to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] The utility model provides a multi-stage filtering vacuum drying box, aiming to solve the problems of low drying efficiency of the existing drying box mentioned in the background technology.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model provides the following technical solution: a multi-stage filtering vacuum drying box, comprising a drying box body, a conduit penetrating one end of the drying box body, and a feeding pipe arranged on the top of the drying box body.

[0010] In order to solve the problem of efficient drying and screening of materials, slide plates are symmetrically arranged in the drying box, the slide plates are slidably connected to the drying box, a cylinder is fixedly installed in the drying box, the telescopic end of the cylinder is fixedly connected to the slide plate, three screening frames distributed in a linear array are rotatably installed on the slide plate, a collecting hopper is arranged at the bottom of the drying box, a guide rod is symmetrically arranged at one end of the screening frame, and a slide groove adapted to the guide rod is opened in the drying box;

[0011] The chute includes an inclined chute provided in the drying box, a horizontal chute provided in one end of the drying box and connected to the inclined chute, and a plurality of protrusions fixedly installed in the inclined chute and the horizontal chute. The material can be screened during the drying process by using the screening frame, thereby improving the drying efficiency of the material.

[0012] Preferably, in order to solve the problem of material discharge, three guide hoppers adapted to the screening frame are provided on the drying box body, and a discharge port is provided at one end of the screening frame close to the guide hopper, and a blocking mechanism is provided in the discharge port. Through the design of the guide hopper, materials can be discharged autonomously, and materials screened into different particle sizes can be discharged separately for differentiation.

[0013] Preferably, in order to solve the sealing problem of the discharge port during drying, the material blocking mechanism includes a rotating shaft rotatably mounted in the discharge port, a baffle plate mounted on the rotating shaft, a torsion spring disposed at both ends of the rotating shaft, and a limit edge fixedly mounted in the discharge port and adapted to the baffle plate, and the two ends of the torsion spring are respectively fixedly connected to the discharge port and the rotating shaft. The material blocking mechanism can achieve sealing of the discharge port to prevent materials from spilling during the drying process.

[0014] Preferably, in order to solve the problem of opening the baffle, the guide hopper is symmetrically provided with vertical plates, and the vertical plates are fixedly mounted with support rods corresponding to the baffles. Through the use of the support rods, the baffles can be opened for unloading during the sliding of the screening frame along the inclined groove.

[0015] Preferably, in order to solve the contact problem between the support rod and the baffle, the support rod and the inclined groove are arranged in parallel. Through the inclined arrangement, the support rod can contact and drive the baffle.

[0016] Preferably, in order to solve the sealing problem of the material guide hopper, a sealing cover is mounted on one end of the material guide hopper located outside the drying box. The material guide hopper can be sealed by the sealing cover to maintain the air pressure in the drying box.

[0017] (III) Beneficial effects

[0018] The multi-stage filtering vacuum drying box has a simple structure and is easy to use. By arranging a screening frame and a material guide hopper, and by driving the slide plate and the screening frame to slide back and forth through a cylinder, the material is not only effectively screened in the screening frame, but also dried during the entire screening process, thereby greatly improving the drying and screening efficiency. When the screening frame slides along the inclined groove, the discharge port can be automatically opened through contact with the support rod, thereby realizing automatic unloading of the material, reducing the steps of manual operation, and improving the degree of automation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a multi-stage filtering vacuum drying oven;

[0020] Figure 2 It is a schematic diagram of the internal structure of the drying box of the multi-stage filtration vacuum drying box;

[0021] Figure 3 It is a schematic diagram of the multi-angle structure inside the drying box of the multi-stage filtration vacuum drying box;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure at A;

[0023] Figure 5 for Figure 2 Schematic diagram of the structure at point B.

[0024] In the figure: 1. drying box; 11. conduit; 12. feeding pipe; 13. slide; 131. inclined slot; 132. horizontal slot; 133. convex block; 14. collecting hopper; 2. slide plate; 21. screening frame; 211. guide rod; 22. discharge port; 23. material blocking mechanism; 231. rotating shaft; 232. baffle; 233. torsion spring; 234. limit edge; 24. cylinder; 3. guide hopper; 31. vertical plate; 32. support rod; 33. sealing cover. DETAILED DESCRIPTION

[0025] 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. 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 creative work are within the scope of protection of the utility model.

[0026] The utility model provides a multi-stage filtering vacuum drying box, such as Figure 1-5As shown, the vacuum drying box includes a drying box body 1, a conduit 11 penetrating one end of the drying box body 1, and a feeding pipe 12 arranged on the top of the drying box body 1, a slide plate 2 is symmetrically arranged in the drying box body 1, and the slide plate 2 is slidably connected to the drying box body 1, a cylinder 24 is fixedly installed in the drying box body 1, and the telescopic end of the cylinder 24 is fixedly connected to the slide plate 2, and three screening frames 21 distributed in a linear array are rotatably installed on the slide plate 2, a collecting hopper 14 is arranged at the bottom of the drying box body 1, and a guide rod 211 is symmetrically arranged at one end of the screening frame 21, and a slide groove 13 adapted to the guide rod 211 is opened in the drying box body 1;

[0027] The slide groove 13 includes an inclined groove 131 opened in the drying box body 1, a horizontal groove 132 opened in the drying box body 1 and connected to the inclined groove 131 at one end, and a plurality of protrusions 133 fixedly installed in the inclined groove 131 and the horizontal groove 132.

[0028] When in use, the material can be added to the interior of the drying box 1 through the feeding pipe 12, and the material can fall into the top screening frame 21. Then the cylinder 24 can be turned on to drive the slide plate 2 and the screening frame 21 to slide back and forth, so that the screening frame 21 can slide along the horizontal groove 132, and the guide rod 211 can shake when it contacts the protrusion 133 in the horizontal groove 132, so that the screening frame 21 can rotate along the slide plate 2, and then the material in the screening frame 21 can be vibrated and screened. After screening, the material can fall into the bottom collecting hopper 14, and the material in the collecting hopper 14 and each screening frame 21 can be dried during the screening process.

[0029] Furthermore, three guide hoppers 3 adapted to the screening frame 21 are arranged through the drying box body 1, and a discharge port 22 is opened at one end of the screening frame 21 close to the guide hopper 3, and a material blocking mechanism 23 is arranged in the discharge port 22; when unloading, the cylinder 24 can be extended to drive the screening frame 21 to move through the slide plate 2, and when the guide rod 211 enters the inclined groove 131, it can drive the screening frame 21 to tilt, and when the screening frame 21 is tilted, the material therein can be discharged through the discharge port 22 into the guide hopper 3 for unloading.

[0030] Specifically, the material blocking mechanism 23 includes a rotating shaft 231 rotatably installed in the discharge port 22, a baffle 232 mounted on the rotating shaft 231, a torsion spring 233 arranged at both ends of the rotating shaft 231, and a limiting edge 234 fixedly installed in the discharge port 22 and adapted to the baffle 232, and the two ends of the torsion spring 233 are respectively fixedly connected to the discharge port 22 and the rotating shaft 231; during the material screening process, under the action of the torsion spring 233, the baffle 232 can fit with the limiting edge 234 to block the discharge port 22 to prevent material leakage.

[0031] Furthermore, the guide hopper 3 is symmetrically provided with a vertical plate 31, and a support rod 32 corresponding to the baffle 232 is fixedly mounted on the vertical plate 31, and the support rod 32 is arranged parallel to the inclined groove 131; when the screening frame 21 contacts the support rod 32 during the process of sliding along the inclined groove 131, the support rod 32 can contact the baffle 232 and drive the baffle 232 to rotate through the rotating shaft 231, thereby opening the discharge port 22, and the material in the screening frame 21 can fall into the guide hopper 3 through the discharge port 22.

[0032] Furthermore, a sealing cover 33 is mounted on one end of the guide hopper 3 located outside the drying box 1; the sealing cover 33 is installed at one end of the guide hopper 3 to seal the guide hopper 3 to prevent the drying gas from leaking out.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage filtering vacuum drying oven, comprising a drying oven body (1), a conduit (11) penetrating one end of the drying oven body (1), and a feeding pipe (12) disposed at the top of the drying oven body (1), characterized in that: A slide plate (2) is symmetrically arranged in the drying box (1), and the slide plate (2) is slidably connected to the drying box (1). A cylinder (24) is fixedly installed in the drying box (1), and the telescopic end of the cylinder (24) is fixedly connected to the slide plate (2). Three screening frames (21) distributed in a linear array are rotatably installed on the slide plate (2). A collecting hopper (14) is arranged at the bottom of the drying box (1), and a guide rod (211) is symmetrically arranged at one end of the screening frame (21). A slide groove (13) adapted to the guide rod (211) is opened in the drying box (1); The slide groove (13) comprises an inclined groove (131) provided in the drying box body (1), a horizontal groove (132) provided in the drying box body (1) and connected to the inclined groove (131) at one end, and a plurality of protrusions (133) fixedly mounted in the inclined groove (131) and the horizontal groove (132).

2. The multi-stage filtration vacuum drying oven according to claim 1, characterized in that: The drying box (1) is provided with three guide hoppers (3) adapted to the screening frame (21); one end of the screening frame (21) close to the guide hopper (3) is provided with a discharge port (22); a material blocking mechanism (23) is provided in the discharge port (22).

3. The multi-stage filtration vacuum drying oven according to claim 2, characterized in that: The material blocking mechanism (23) comprises a rotating shaft (231) rotatably mounted in the discharge port (22), a baffle (232) sleeved on the rotating shaft (231), a torsion spring (233) arranged at both ends of the rotating shaft (231), and a limiting edge (234) fixedly mounted in the discharge port (22) and adapted to the baffle (232), wherein both ends of the torsion spring (233) are fixedly connected to the discharge port (22) and the rotating shaft (231), respectively.

4. The multi-stage filtration vacuum drying oven according to claim 3, characterized in that: The guide hopper (3) is symmetrically provided with a vertical plate (31), and a support rod (32) corresponding to the baffle (232) is fixedly mounted on the vertical plate (31).

5. The multi-stage filtration vacuum drying oven according to claim 4, characterized in that: The support rod (32) is arranged in parallel with the inclined groove (131).

6. The multi-stage filtration vacuum drying oven according to claim 2, characterized in that: One end of the guide hopper (3) located outside the drying box (1) is provided with a sealing cover (33).

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