Filter residue drying mechanism and negative pressure filter

Abstract

The utility model discloses a negative pressure filter which comprises a box body, a drying fan installed on the side wall of the box body and a ventilation pipeline connected with an air outlet of the drying fan, a plurality of ventilation holes are formed in the box body, and a cavity of the ventilation pipeline is communicated with the ventilation holes. According to the filter membrane drying device, the used filter membrane can be dried, and the drying efficiency of the filter membrane is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of negative pressure filtering, in particular to a filter residue drying mechanism and a negative pressure filter. Background Art

[0002] The negative pressure filter separates liquid and solid by allowing the liquid in the suspension to be drawn away through the filter medium (filter membrane) under the action of vacuum negative pressure, while the solid particles are retained by the medium.

[0003] The vacuum filter uses the surface filtration mechanism. When the liquid in the suspension flows to the filter medium, solid particles that are larger than or similar to the pore size of the filter medium will first form an initial layer on the surface of the medium in a bridging manner. The pores of the filter medium are larger than its pore channels, so smaller particles are retained. Therefore, the continuously deposited solid particles gradually form a filter cake with a certain thickness on the initial deposition layer.

[0004] The current negative pressure filter obtains filter cake by drying the filter medium (filter membrane). However, due to the large filter membrane area of ​​the negative pressure filter, the use of a single ventilation hole will result in different degrees of drying. The drying effect is better at the ventilation hole, while the drying effect of the filter membrane far away from the ventilation hole is poor. Utility Model Content

[0005] The present application provides a filter residue drying mechanism and a negative pressure filter, which are helpful for drying used filter membranes and improving the drying efficiency of the filter membranes.

[0006] The present application provides a filter residue drying mechanism, comprising a box body, a drying fan installed on the side wall of the box body, and a ventilation duct connected to the air outlet of the drying fan. The box body is provided with a plurality of ventilation holes, and the chamber of the ventilation duct is communicated with the ventilation holes.

[0007] By adopting the above technical solution, in order to improve the drying efficiency of the filter membrane in the box, a drying fan is used to dry the filter membrane; since the area of ​​the filter membrane is relatively large, the use of a single ventilation hole will result in different degrees of drying, and the drying effect at the ventilation hole is better, while the drying effect of the filter membrane far away from the ventilation hole is poor. The present application can connect the ventilation holes at different positions with the ventilation duct, thereby improving the drying of the filter membrane at different positions, thereby improving the drying efficiency of the filter membrane.

[0008] Optionally, the box body is provided with mounting plates of different models and specifications, and the mounting plates of different models are arranged with ventilation holes of different sizes and numbers.

[0009] By adopting the above technical solution, different types of mounting plates can be formulated for detachable installation according to the drying effect of the filter membrane; wherein, different types of mounting plates have ventilation holes of different sizes and evenly spaced, which are suitable for different filter membranes that need to be dried.

[0010] Optionally, a mounting cavity is provided on the mounting plate, and the drying fan is fixed in the mounting cavity.

[0011] Optionally, each of the ventilation holes is provided with a sealing cover for closing the ventilation hole.

[0012] By adopting the above technical solution, when the filter membrane is drying, in order to maintain the sealing of the box body, each ventilation hole is closed by a sealing cover.

[0013] Optionally, the mounting plate is provided with a sealing groove in an annular shape on the hole wall of each ventilation hole, and a sealing ring is provided on the hole wall of the ventilation hole and embedded in the sealing groove.

[0014] By adopting the above technical solution, the sealing ring is embedded in the sealing groove, thereby improving the sealing performance of the sealing cover to the ventilation hole, thereby improving the drying efficiency of the filter membrane.

[0015] Optionally, a first locking block is provided on the peripheral side of the sealing cover, and a locking groove for the first locking block to be inserted is opened on the wall of each ventilation hole, and the bottom of the locking groove is located on the wall of the ventilation hole and a fixing groove for the first locking block to be rotatably fixed is provided.

[0016] By adopting the above technical solution, the first locking block is inserted into the locking groove, and then the first locking block is fixed in the locking groove by rotating the first locking block, thereby improving the fixing stability of the sealing cover.

[0017] Optionally, a second locking block is provided at one end of the ventilation duct connected to the ventilation hole, and a circumferential radius of the sealing cover is consistent with a circumferential radius of the ventilation duct.

[0018] By adopting the above technical solution, the ventilation duct and the sealing cover have the same model, and can be adapted and fixed to the ventilation holes at different positions on the mounting plate.

[0019] Optionally, the ventilation duct is provided with a diversion pipe, each of the diversion pipes is connected to the ventilation hole, and the ventilation pipe and the diversion pipe are both hoses.

[0020] By adopting the above technical solution, the pipeline is added to be connected with the drying fan and multiple ventilation holes, so as to further improve the drying efficiency of the filter membrane.

[0021] On the other hand, the present application discloses a negative pressure filter, including a filter membrane transfer mechanism, a filter storage box and the filter residue drying mechanism; the filter membrane transfer mechanism includes a filter membrane for transfer arranged in the box body and a transmission assembly for transporting the filter membrane; the filter storage box stores dirty liquid and filtrate in the negative pressure filter.

[0022] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0023] 1. The present application can be connected to the ventilation duct through ventilation holes at different positions, thereby improving the drying of the filter membrane at different positions to improve the drying efficiency of the filter membrane.

[0024] 2. The present application uses a plurality of mounting plates of different models, and ventilation holes of different sizes and evenly spaced are provided on the mounting plates of different models, which are suitable for different filter membranes that need to be dried.

[0025] 2. This application adopts the method of adding a pipeline to connect with a drying fan and multiple ventilation holes to further improve the drying efficiency of the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the negative pressure filter in this practical application;

[0028] Figure 2 for Figure 1 A magnified view of part A;

[0029] Figure 3 It is a schematic diagram of the overall structure of the sealing cover in this practical application;

[0030] Figure 4 This is a partial structural schematic diagram of the ventilation duct in this practical application.

[0031] Explanation of the accompanying drawings: 1. filter membrane transfer mechanism; 11. filter membrane; 12. transmission assembly; 2. filter storage box; 3. filter residue drying mechanism; 31. box body; 32. drying fan; 33. ventilation duct; 331. second locking block; 34. ventilation hole; 341. sealing groove; 342. sealing ring; 343. locking groove; 344. fixing groove; 35. mounting plate; 351. mounting cavity; 36. sealing cover; 361. first locking block; 362. handle. DETAILED DESCRIPTION

[0032] The present application provides a filter residue drying mechanism and a negative pressure filter, which are helpful for drying the used filter membrane and improving the drying efficiency of the filter membrane.

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices.

[0035] Reference Figure 1 The negative pressure filter of this embodiment includes a filter membrane transfer mechanism 1, a filter storage box 2, and a filter residue drying mechanism. The filter membrane transfer mechanism 1 includes a filter membrane 11 and a transmission component 12 for transferring the filter membrane 11. The filter membrane 11 is transferred to the filter residue drying mechanism by the transmission component 12 for drying; more specifically, the transmission component 12 is a transmission shaft and a motor in the prior art. At the same time, the dirty liquid and filtrate in the negative pressure filter are stored in the filter storage box 2, which helps to store and manage the dirty liquid and filtrate.

[0036] Reference Figure 1 and Figure 2 , wherein the filter residue drying mechanism includes a box body 31, a drying fan 32 installed on the side wall of the box body 31, and a ventilation duct 33 connected to the air outlet of the drying fan 32. At the same time, a plurality of ventilation holes 34 are provided on the box body 31, and the chamber of the ventilation duct 33 is connected to the ventilation holes 34. Since the area of ​​the filter membrane 11 is relatively large, the use of a single ventilation hole 34 will result in different degrees of drying. The drying effect at the ventilation hole 34 is better, and the drying effect of the filter membrane 11 far away from the ventilation hole 34 is not good. The present application can connect the ventilation holes 34 at different positions with the ventilation duct 33, thereby improving the drying of the filter membrane 11 at different positions, so as to improve the drying efficiency of the filter membrane 11.

[0037] Specifically, the box body 31 is provided with mounting plates 35 of different models and specifications. Among them, different sizes and numbers of ventilation holes 34 are arranged on the mounting plates 35 of different models. In view of the drying effect of the filter membrane 11, different models of mounting plates 35 can be formulated for detachable installation. Among them, different models of mounting plates 35 have ventilation holes 34 of different sizes and evenly spaced, which are suitable for different filter membranes 11 that need to be dried. In addition, an installation cavity 351 is provided on the mounting plate 35, and the drying fan 32 is fixed in the installation cavity 351 to improve the installation stability of the drying fan 32.

[0038] Reference Figure 2 and Figure 3 Each vent hole 34 is provided with a sealing cover 36 for sealing the vent hole 34. When the filter membrane 11 is being dried, in order to maintain the airtightness in the box body 31, each vent hole 34 is sealed by the sealing cover 36.

[0039] Specifically, the mounting plate 35 is provided with a sealing groove 341 in an annular shape on the hole wall of each ventilation hole 34, and a sealing ring 342 is provided on the hole wall of the ventilation hole 34 and embedded in the sealing groove 341. At the same time, the sealing ring 342 has deformation ability, thereby improving the sealing performance of the sealing cover 36 to the ventilation hole 34, which helps to improve the drying efficiency of the filter membrane 11.

[0040] In addition, two first locking blocks 361 are integrally and symmetrically arranged on the peripheral side of the sealing cover 36, and a locking groove 343 for the first locking block 361 to be inserted is provided on the hole wall of each ventilation hole 34. Moreover, the groove bottom of the locking groove 343 is located on the hole wall of the ventilation hole 34, and a fixing groove 344 for the first locking block 361 to be rotatably fixed is arranged. Among them, the chamber of the sealing groove 341 is communicated with the chamber of the fixing groove 344, so that the sealing ring 342 will abut against each other for sealing during the process of being fastened to the sealing cover 36. In addition, the hole wall of the ventilation hole 34 and the side wall on the sealing cover 36 are provided with threads corresponding to each other. First, the sealing cover 36 is extended into the direction of the ventilation hole 34 and fixed. Secondly, after the first locking block 361 is inserted into the locking groove 343, the first locking block 361 is fixed in the locking groove 343 by rotating the first locking block 361. Then, the hole wall of the ventilation hole 34 and the threads of the side wall on the sealing cover 36 are tightened correspondingly to each other, and the sealing ring 342 and the sealing cover 36 are tightly pressed and deformed, so that the ventilation hole 34 is sealed, and the first locking block 361 is fixed in the fixing groove 344. In addition, the sealing cover 36 is also provided with a handle 362 for easy rotation and fixing.

[0041] Combination Figure 2 and Figure 4, a symmetrical second locking block 331 is integrally provided at one end of the ventilation duct 33 connected to the ventilation hole 34, wherein the circumferential radius of the sealing cover 36 is consistent with the circumferential radius of the ventilation duct 33. In the process of designing the ventilation hole 34, the ventilation duct 33 and the sealing cover 36 have the same size model, and can be adapted and fixed to the ventilation holes 34 at different positions on the mounting plate 35, wherein the fixing method is consistent with the method in which the first locking block 361 is fixed to the fixing groove 344, and corresponding threads are provided to fix the ventilation holes 34. Furthermore, the connection between the ventilation duct 33 and the ventilation hole 34 can be rotatably arranged relative to the ventilation duct 33 as a whole, thereby facilitating the installation of the ventilation duct 33. In actual production applications, it is possible to select a targeted drying for the filter membrane 11 area that is difficult to dry.

[0042] On the other hand, a shunt pipe is provided on the ventilation duct 33, and multiple pipes are branched out from the shunt pipe. The connection structure between each pipe and the ventilation hole 34 is consistent with the connection method between the ventilation duct 33 and the ventilation hole 34. In addition, the ventilation duct and the shunt pipe are both hoses, which can be deformed according to the ventilation holes 34 at different positions, thereby increasing the connection between the pipe and the drying fan 32 and multiple ventilation holes 34, so that the surface of the filter membrane 11 can be dried at all places at the same time, further improving the drying efficiency of the filter membrane 11.

[0043] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0045] This specification and drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A filter residue drying mechanism, characterized in that: The invention comprises a box body (31), a drying fan (32) installed on the side wall of the box body (31), and a ventilation duct (33) connected to the air outlet of the drying fan (32); the box body (31) is provided with a plurality of ventilation holes (34); and the chamber of the ventilation duct (33) is in communication with the ventilation holes (34).

2. The filter residue drying mechanism according to claim 1, characterized in that: The box body (31) is provided with mounting plates (35) of different models and specifications, and the mounting plates (35) of different models are arranged with ventilation holes (34) of different sizes and numbers.

3. The filter residue drying mechanism according to claim 2, characterized in that: The mounting plate (35) is provided with a mounting cavity (351), and the drying fan (32) is fixed in the mounting cavity (351).

4. The filter residue drying mechanism according to claim 2, characterized in that: Each ventilation hole (34) is provided with a sealing cover (36) for closing the ventilation hole (34).

5. The filter residue drying mechanism according to claim 4, characterized in that: The mounting plate (35) is provided with a sealing groove (341) in an annular shape on the hole wall of each ventilation hole (34), and a sealing ring (342) is provided on the hole wall of the ventilation hole (34) and embedded in the sealing groove (341).

6. The filter residue drying mechanism according to claim 5, characterized in that: A first locking block (361) is provided on the peripheral side of the sealing cover (36), and a locking groove (343) for the first locking block (361) to be inserted is provided on the hole wall of each ventilation hole (34), and a fixing groove (344) for the first locking block (361) to be rotatably fixed is provided at the bottom of the locking groove (343) located on the hole wall of the ventilation hole (34).

7. The filter residue drying mechanism according to claim 6, characterized in that: A second locking block (331) is provided at one end of the ventilation duct (33) connected to the ventilation hole (34), and the circumferential radius of the sealing cover (36) is consistent with the circumferential radius of the ventilation duct (33).

8. The filter residue drying mechanism according to claim 1, characterized in that: The ventilation duct (33) is provided with a diverter pipe, each of which is in communication with the ventilation hole (34), and both the ventilation pipe and the diverter pipe are hoses.

9. A negative pressure filter, characterized in that: It comprises a filter membrane transfer mechanism (1), a filter storage box (2) and a filter residue drying mechanism (3) as described in any one of claims 1 to 8; the filter membrane transfer mechanism (1) comprises a filter membrane (11) arranged in the box body (31) for transfer and a transmission component (12) for transferring the filter membrane (11); the filter storage box (2) stores dirty liquid and filtrate in the negative pressure filter.

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