Filter pressing head

Abstract

The utility model provides a filter pressing head which comprises a box body, a filter pressing assembly is arranged in the box body; the filter pressing assembly comprises a moving plate and a rectangular frame which is arranged below the moving plate and moves in the vertical direction, first guide rods which vertically penetrate through the moving plate are upwards formed at the two ends of the rectangular frame, limiting columns are arranged at the tops of the first guide rods, the first guide rods are sleeved with first springs, and the first springs are located between the moving plate and the rectangular frame; a filter basket is detachably mounted on the inner side of the rectangular frame, a plurality of meshes are formed in the bottom surface of the filter basket, and an extrusion plate matched with the inner wall of the filter basket is connected to the bottom of the moving plate; a first opening for the moving plate to pass through is formed in the top of the box body; the bottom of the box body is communicated with a discharging pipe for discharging the filter basket and limiting the rectangular frame to pass through; a fixing assembly is arranged on the outer side of the discharging pipe and used for being matched with the inner wall of the barrel body. According to the scheme, the structure is simple, transferring is easy, and solid-liquid separation of materials can be achieved by being matched with the barrel body anytime and anywhere.

Description

Technical Field

[0001] This application relates to the field of filter press technology, and more particularly to a filter press head. Background Technology

[0002] Pharmaceutical intermediates are actually chemical intermediates or chemical products used in the process of drug synthesis. These chemical products are used in the synthesis of drugs.

[0003] Filtration is a crucial step in the production of pharmaceutical intermediates. Currently, most methods involve direct filtration using filter baskets or filter presses. Direct filtration with filter baskets is time-consuming and has low efficiency. Filter presses, on the other hand, utilize porous filter media to trap solid particles in a liquid-solid mixture, achieving solid-liquid separation. While more widely used in pharmaceutical intermediate production, filter presses are limited in their size and spatial portability, making them less readily accessible. Therefore, it is necessary to design a filter press head that offers higher filtration efficiency, smaller size, and easy accessibility. Utility Model Content

[0004] To address the shortcomings of the prior art, this application provides a filter press head that is simple in structure, easy to move, and readily available for use anytime and anywhere to cooperate with the tank body to achieve solid-liquid separation of materials.

[0005] To achieve the above objectives, the present invention employs the following technology:

[0006] A filter press head includes a housing, inside which a filter press assembly is disposed;

[0007] The filter press assembly includes a movable plate and a rectangular frame located below the movable plate and moving vertically. The rectangular frame has first guide rods that are vertically inserted through the movable plate at both ends. The top of the first guide rod is provided with a limiting post. The first guide rod is fitted with a first spring, which is located between the movable plate and the rectangular frame. A filter basket is detachably installed inside the rectangular frame. The bottom surface of the filter basket has several mesh openings. The bottom of the movable plate is connected to an extrusion plate that matches the inner wall of the filter basket.

[0008] The top of the box has a first opening for the moving plate to pass through, and the bottom of the box is connected to a discharge pipe for the filter basket to discharge and for restricting the passage of the rectangular frame;

[0009] A fixing component is provided on the outside of the discharge pipe, which is used to fit with the inner wall of the barrel.

[0010] The advantages of this utility model are: it can be used with the barrel to achieve solid-liquid separation of materials, has a small footprint, simple structure, is easy to transfer, can be used anytime and anywhere, and is highly practical. Attached Figure Description

[0011] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0012] Figure 1 This is a perspective view of the overall structure of an embodiment of this application.

[0013] Figure 2 This is a schematic diagram of the structure of the filter press assembly in the embodiments of this application.

[0014] Figure 3 This is a cross-sectional view of the embodiment of this application when it is fitted into the barrel body. Figure 1 .

[0015] Figure 4 This is a cross-sectional view of the embodiment of this application when it is fitted into the barrel body. Figure 2 . Detailed Implementation

[0016] To make the objectives, technical solutions and advantages of the embodiments of this utility model clearer, the implementation methods of this utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this utility model are only some embodiments of this utility model, and not all embodiments.

[0017] This application provides a filter press head, such as... Figures 1-4 As shown, it includes a housing 1, which contains a filter press assembly 2.

[0018] The filter press assembly 2 includes a movable plate 21 and a rectangular frame 22 located below the movable plate 21 and moving vertically. The rectangular frame 22 has first guide rods 23 extending vertically through the movable plate 21 at both ends. The top of the first guide rods 23 is provided with limiting posts to limit the maximum vertical distance between the movable plate 21 and the rectangular frame 22. The first guide rods 23 are fitted with a first spring 24, which is located between the movable plate 21 and the rectangular frame 22. A filter basket 25 is detachably installed inside the rectangular frame 22. The bottom surface of the filter basket 25 has several mesh openings. The bottom of the movable plate 21 is connected to a pressing plate 26 that matches the inner wall of the filter basket 25.

[0019] The top of the box 1 has a first opening for the moving plate 21 to pass through, and the bottom of the box 1 is connected to a discharge pipe 3 for the filter basket 25 to discharge and for restricting the passage of the rectangular frame 22. While ensuring that the liquid material flowing out of the filter basket 25 can be discharged more completely through the discharge pipe 3, the rectangular frame 22 is restricted to prevent it from sliding out of the discharge pipe 3.

[0020] A fixing component 4 is provided on the outside of the discharge pipe 3. The fixing component 4 is used to cooperate with the inner wall of the barrel to fix the filter head on the barrel body, so as to prevent the filter head from being touched during operation and thus avoid displacement or slippage, thereby improving the stability of the filter head during operation.

[0021] During application, the discharge pipe 3 needs to be inserted into the barrel. The fixing component 4, in conjunction with the inner wall of the barrel, secures the housing 1 above the barrel. Pulling the moving plate 21 upwards causes the rectangular frame 22 and filter basket 25 to move upwards until the filter basket 25 reaches a height convenient for loading. At this point, material can be fed into the filter basket 25. After feeding, some liquid material will flow out through the mesh of the filter basket 25, while some liquid material will remain on the solid material.

[0022] The moving plate 21 is pushed downwards, causing the rectangular frame 22 and filter basket 25 to move downwards until the filter basket 25 reaches a predetermined lowest position and can no longer move. The moving plate 21 then continues to move downwards, and through the squeezing plate 26 connected to its bottom, it engages with the inner wall of the filter basket 25 to squeeze the material inside, achieving further solid-liquid separation. To ensure more complete solid-liquid separation, the above squeezing action can be repeated multiple times.

[0023] After separation, pull the moving plate 21 upward. The moving plate 21 will drive the rectangular frame 22 and the filter basket 25 to move upward until the filter basket 25 is moved to a height that is easy for the staff to remove. At this time, the filter basket 25 can be removed from the rectangular frame 22 to complete the discharge of solid materials. Then, separate the filter head from the barrel to complete the discharge of liquid materials in the barrel.

[0024] Specifically, such as Figure 2 As shown, a second opening is provided on one side of the rectangular frame 22 for the filter basket 25 to enter. T-shaped guide rails are provided on the outer walls at both ends of the filter basket 25 along its width direction. These T-shaped guide rails are used to slide into T-shaped grooves formed on the inner walls at both ends of the rectangular frame 22. Through the simple engagement of the T-shaped grooves and T-shaped guide rails, a detachable connection between the filter basket 25 and the rectangular frame 22 can be achieved, facilitating the discharge of solid materials and the replacement of the filter basket 25.

[0025] Specifically, such as Figure 1 , Figure 2 as well as Figure 4 As shown, a connecting post 251 is provided on one side of the filter basket 25, and a pull ring 252 is rotatably mounted on the connecting post 251. When it is necessary to separate the filter basket 25 from the rectangular frame 22, the pull ring 252 can be pulled. When the other side of the filter basket 25 is in contact with the inner wall of the rectangular frame 22, the outer end of the connecting post 251 contacts the inner wall of the housing 1. While ensuring that the filter basket 25 can be easily connected by sliding cooperation between the T-slot and the T-rail, the contact between the other side of the filter basket 25 and the inner wall of the rectangular frame 22, and the contact between the outer end of the connecting post 251 and the inner wall of the housing 1, limit the position of the filter basket 25 to ensure that it will not slide and remains stably in the position corresponding to the extrusion plate 26.

[0026] Specifically, such as Figures 1-3As shown, guide blocks 221 are provided on the outer walls of both ends of the rectangular frame 22. The guide blocks 221 are used to slide and cooperate with the guide grooves 12 that are vertically opened on the inner walls of both ends of the box body 1. The guide grooves 12 have a gap with the top and bottom surfaces of the box body 1 to limit the rectangular frame 22 inside the box body 1 and prevent it from detaching from the top or bottom of the box body 1. A third opening is provided on the top of one side of the box body 1. When the rectangular frame 22 moves to the predetermined highest position, the filter basket 25 corresponds to the third opening. On the basis of limiting the rectangular frame 22 inside the box body 1, the addition of the third opening allows the filter basket 25 to pass through, so as to facilitate the sliding out of the filter basket 25.

[0027] To reduce the residue of liquid material in the tank 1 and allow for more complete discharge through the discharge pipe, the feed into the filter basket 25 can be completed when it is at a predetermined lowest position. Specifically, such as... Figure 2 and Figure 4 As shown, the top of the filter basket 25 is higher than the top of the rectangular frame 22, and the portion of the filter basket 25 above the rectangular frame 22 is connected to the feed pipe 253. A through groove 11 is provided on the other side of the housing 1, with a diameter larger than that of the feed pipe 253. When the rectangular frame 22 moves to the predetermined lowest position, the axis of the feed pipe 253 coincides with that of the through groove 11. Specifically, the feeding method of the filter basket 25 is as follows: when the rectangular frame 22 moves to the predetermined lowest position, the material can be conveyed through a material conveying pipe, which passes through the through groove 11 and connects to the feed pipe 253.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, the bottom of the discharge pipe 3 is a rectangular square tube structure. Two sets of fixing components 4 are symmetrically arranged at the bottom of the discharge pipe 3. Each fixing component 4 includes two second guide rods 41 arranged parallel to the width direction of the discharge pipe 3. The two second guide rods 41 slide through the end walls of the discharge pipe 3 to avoid obstructing the discharge channel. Each second guide rod 41 is fitted with a second spring 42, which is located on the outside of the discharge pipe 3. The outer ends of the two second guide rods 41 are connected to the same inner fixing plate 43, and the outer surface of the inner fixing plate 43 matches the inner wall of the barrel. The two symmetrically arranged fixing components 4 abut against the inner wall of the barrel to complete the connection between the filter head and the barrel body.

[0029] Specifically, such as Figures 1-4 As shown, the movable plate 21 is equipped with a handle 211 on its top. The operator controls the movement of the movable plate 21 by using the handle 211.

[0030] Therefore, the specific method of separating the filter head from the barrel is as follows: pull the handle 211 upward to move the filter head upward as a whole and fix the barrel to prevent the barrel from moving with it. This separates the filter head from the barrel, allowing the liquid material inside the barrel to be discharged. The operator can also use the handle 211 to move the filter head more conveniently for use anytime and anywhere.

[0031] In application, the above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A filter press head, characterized in that, Includes a housing (1), which contains a filter press assembly (2); The filter press assembly (2) includes a movable plate (21) and a rectangular frame (22) located below the movable plate (21) and moving vertically. The rectangular frame (22) has a first guide rod (23) extending vertically through the movable plate (21) at both ends. The first guide rod (23) has a limiting post at the top. The first guide rod (23) is fitted with a first spring (24) and the first spring (24) is located between the movable plate (21) and the rectangular frame (22). A filter basket (25) is detachably installed inside the rectangular frame (22). The bottom surface of the filter basket (25) has several mesh openings. The bottom of the movable plate (21) is connected to a pressing plate (26) that matches the inner wall of the filter basket (25). The top of the box (1) has a first opening for the moving plate (21) to pass through, and the bottom of the box (1) is connected to a discharge pipe (3) for the filter basket (25) to discharge and for restricting the passage of the rectangular frame (22). The discharge pipe (3) is provided with a fixing component (4) on the outside, which is used to cooperate with the inner wall of the barrel.

2. A filter press head according to claim 1, characterised in that A second opening is provided on one side of the rectangular frame (22) for the filter basket (25) to enter. T-shaped guide rails are provided on the outer walls of both ends of the filter basket (25) along its own width direction. The T-shaped guide rails are used to slide and cooperate with the T-shaped grooves opened on the inner walls of both ends of the rectangular frame (22).

3. A filter press head according to claim 2, characterised in that A connecting post (251) is provided on one side of the filter basket (25), and a pull ring (252) is provided on the connecting post (251). When the other side of the filter basket (25) is in contact with the inner wall of the rectangular frame (22), the outer end of the connecting post (251) contacts the inner wall of the box (1).

4. A filter press head according to claim 2, wherein, The outer walls of the rectangular frame (22) are provided with guide blocks (221). The guide blocks (221) are used to slide with the guide grooves (12) that are vertically opened on the inner walls of the two ends of the box (1). The guide grooves (12) are spaced from the top and bottom surfaces of the box (1) and are not set through the top and bottom surfaces of the box (1). A third opening is opened on the top of one side of the box (1). When the rectangular frame (22) moves to the predetermined highest position, the filter basket (25) corresponds to the third opening.

5. A filter press head according to claim 1, wherein, The top of the filter basket (25) is set higher than the top of the rectangular frame (22), and the part of the filter basket (25) that is higher than the rectangular frame (22) is connected to the feed pipe (253). The other side of the box (1) is provided with a through groove (11). The diameter of the through groove (11) is larger than the diameter of the feed pipe (253). When the rectangular frame (22) moves to the predetermined lowest position, the axis of the feed pipe (253) coincides with that of the through groove (11).

6. A filter press head according to claim 1, wherein, The bottom of the discharge pipe (3) is a rectangular square tube structure. There are two sets of fixing components (4) symmetrically arranged at the bottom of the discharge pipe (3). The fixing components (4) include two second guide rods (41) arranged parallel to the width direction of the discharge pipe (3). The two second guide rods (41) slide through the two end walls of the discharge pipe (3). Each second guide rod (41) is fitted with a second spring (42) and the second spring (42) is located on the outside of the discharge pipe (3). The outer ends of the two second guide rods (41) are connected to the same inner fixing plate (43). The outer side of the inner fixing plate (43) matches the inner wall of the barrel.

7. A filter press head according to claim 1, wherein, The top of the moving plate (21) is provided with a handle (211).

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