A filter press device with a filter screen convenient to replace

Abstract

The utility model relates to a filter press device convenient to replace filter screen belongs to filter press technical field, this filter press device convenient to replace filter screen, include: machine body, install in the hydraulic mechanism and feeding mechanism of machine body inside, the hydraulic mechanism is provided with a plurality of filter plates with feeding mechanism, the dismounting mechanism includes the locating plate and a plurality of locating blocks of setting in the surface of filter plate four all around, the locating plate is inserted between a plurality of locating blocks, and the inside of locating block in the middle of filter plate is provided with the clamping assembly, and the four corners of filter plate all are provided with the clamping block, through setting locating plate four all around and cooperation locating post to hold fixed filter screen, the quick clamping positioning and dismounting function of combination clamping assembly, have improved the efficiency that filter screen installed and dismounted obviously. Compared with the traditional fixed mode of relying on contraction rope, the tedious operation of repeatedly adjusting multiple ropes is avoided, thereby improving the replacement efficiency of filter screen.

Description

Technical Field

[0001] This utility model relates to the field of filter press technology, and in particular to a filter press device that facilitates filter screen replacement. Background Technology

[0002] Sulfadocanine is a commonly used sulfonamide drug for treating bacterial infections and is widely used in the pharmaceutical industry. Because the production of sulfadoxine involves the separation of liquids and solids, efficient filtration equipment is required to remove impurities and insoluble substances. Filter presses, as a common solid-liquid separation device, effectively improve the cleanliness and purity of the liquid, ensuring the quality of the final product. The filter screen, as an important filtration medium in the filter press, plays a crucial role in the filtration process. However, as filtration continues, the filter screen gradually becomes clogged with solid matter, reducing filtration efficiency. Therefore, a filter press device that allows for easy filter screen replacement is needed to improve production efficiency.

[0003] Traditional filter presses typically install filter screens by drilling holes around the filter plate and using shrink ropes to fix the screens to the surface of the filter plate. However, this method of fixing the screens can lead to repeated tightening and loosening of multiple shrink ropes when workers disassemble or install the screens, resulting in low filter screen replacement efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a filter press device that facilitates filter replacement to address the problem of low filter replacement efficiency.

[0005] A filter press device that facilitates filter screen replacement includes: a body, a hydraulic mechanism installed inside the body, and a feeding mechanism, wherein the hydraulic mechanism and the feeding mechanism are provided with multiple filter plates; The disassembly and assembly mechanism includes a positioning plate and multiple positioning blocks disposed on the four sides of the filter plate. The positioning plate is inserted between the multiple positioning blocks. A snap-fit ​​component is disposed inside the positioning block located in the middle of the filter plate. Snap-fit ​​blocks are disposed at the four corners of the filter plate.

[0006] In one embodiment, the surfaces of the positioning plates located at the upper and lower ends of the filter plate are each provided with two handles, and the surfaces of the positioning plates located on both sides of the filter plate are each provided with one handle.

[0007] In one embodiment, the latching assembly includes latching blocks disposed on both sides of the positioning block, the latching blocks being slidably connected to the inner wall of the positioning block, the two latching blocks being disposed opposite to each other, and a first spring being fixedly connected between the latching blocks and the inner wall of the positioning block.

[0008] In one embodiment, the card block has a right-angled triangle cross-section and an inclined surface is disposed on the outside of the positioning block.

[0009] In one embodiment, a connector is slidably connected to the inner top wall of the positioning block, and the top end of the connector extends through the positioning block and is provided with a pull ring.

[0010] In one embodiment, a crossbar is fixedly connected to one side surface of the card block inside the positioning block, and an adjusting rod is hinged between the crossbar and the connecting member.

[0011] In one embodiment, the snap-fit ​​block is an isosceles right triangle, and the surface of the snap-fit ​​block has multiple through holes.

[0012] In one embodiment, a positioning rod is slidably connected to the inner wall of the filter plate, the positioning rod is used in conjunction with a through hole, and a second spring is fixedly connected between the positioning rod and the inner wall of the filter plate. Beneficial effects

[0013] By setting positioning plates around the filter plate and using positioning posts to clamp and fix the filter screen, combined with the quick-locking positioning and disassembly function of the snap-fit ​​assembly, the efficiency of filter screen installation and disassembly is significantly improved. Compared with the traditional method of relying on retractable ropes for fixing, it avoids the tedious operation of repeatedly adjusting multiple ropes, making filter screen replacement simpler and faster, thereby improving filter screen replacement efficiency; By installing snap-fit ​​blocks at the four corners of the filter plate, the filter screen and filter plate can be further reinforced, ensuring stable positioning of the filter screen and preventing displacement or loosening during high-pressure or long-term use. At the same time, the snap-fit ​​block design allows the filter screen to be laid more evenly on the filter plate surface, avoiding problems such as incomplete filtration or reduced effectiveness caused by wrinkles or uneven laying of the filter screen. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation of the filter plate of this utility model; Figure 3 This is a schematic diagram of the overall structure of the disassembly and assembly mechanism of this utility model; Figure 4 This is an exploded view of the disassembly and assembly mechanism of this utility model; Figure 5 This is a cross-sectional view of the disassembly and assembly mechanism of this utility model; Figure 6 This utility model Figure 5 Enlarged view of point A in the middle.

[0016] Figure label: 100. Machine body; 200. Feeding mechanism; 210. Hydraulic mechanism; 300. Filter plate; 400. Disassembly and assembly mechanism; 410. Positioning plate; 420. Snap-fit ​​assembly; 421. Snap-fit ​​block; 422. Connecting piece; 4221. First spring; 423. Crossbar; 424. Adjusting rod; 430. Positioning block; 440. Snap-fit ​​block; 441. Positioning rod; 442. Second spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figure 1 - Figure 6 This invention describes a filter press device that facilitates filter screen replacement.

[0019] In one embodiment, a filter press device that facilitates filter screen replacement includes: a body 100, a hydraulic mechanism 210 installed inside the body 100, and a feeding mechanism 200, wherein the hydraulic mechanism 210 and the feeding mechanism 200 are provided with a plurality of filter plates 300. The disassembly and assembly mechanism 400 includes a positioning plate 410 disposed on the four sides of the filter plate 300 and a plurality of positioning blocks 430. The positioning plate 410 is inserted between the plurality of positioning blocks 430. The positioning block 430 located in the middle of the filter plate 300 is provided with a snap-fit ​​component 420 inside. A snap-fit ​​block 440 is provided at each of the four corners of the filter plate 300.

[0020] In this device, the main body 100 is mainly composed of multiple support frames and support legs. The support frames are used to support the installation of various components, and the support legs provide support force for the support frames. The upper surfaces of both sides of the support frames are provided with sliding grooves. Similarly, the filter plate 300 is provided with sliders that cooperate with the sliding grooves on both sides. The filter plate 300 slides on the surface of the support frame through the cooperation of the sliders and the sliding grooves. The hydraulic mechanism 210 mainly includes a hydraulic cylinder and an extrusion plate. The hydraulic cylinder needs to be filled with oil by the drive mechanism to drive the hydraulic cylinder to push the extrusion plate. The extrusion plate pushes multiple filter plates 300, so that the filter plates 300 are tightly fitted together to form a closed filter chamber. The feeding mechanism 200 mainly includes a thrust plate and a feeding pipe set in the center of the thrust plate, as well as a diversion pipe set at the four corners of the thrust plate. The feeding mechanism 200 needs to be connected to the material pump and the raw material cylinder. The material pump presses the material from the raw material cylinder into the central feeding pipe and the diversion pipe, and distributes the material to each filter chamber. Each filter chamber is equipped with a drain pipe at the bottom, which is connected to the drain port of each filter chamber to ensure that the filtered liquid flows out smoothly. After startup, this device delivers the liquid to be treated through the feed pipe into multiple filter chambers, utilizing the pressure difference between the filter plates 300 and the filter cloth to achieve solid-liquid separation. Upon entering the filter chambers, a pressing device compresses the filter plates 300, ensuring a tight fit with the filter cloth and forming a sealed filtration space. This forces the liquid to flow through the filter cloth while trapping solids on its surface. As the pressure increases, solid particles in the liquid are filtered out by the filter cloth, and the filtrate flows out through the pores of the filter cloth and is discharged through the drain pipe. Throughout the process, the filter press uses automatically controlled valves to regulate the feed and discharge flow rates and hydraulically maintains the tight compression of the filter plates 300. Ultimately, through this high-pressure action, the filter press achieves a highly efficient solid-liquid separation process.

[0021] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the surfaces of the positioning plates 410 located at the upper and lower ends of the filter plate 300 are each provided with two handles, and the surfaces of the positioning plates 410 located on both sides of the filter plate 300 are each provided with a handle. The locking assembly 420 includes locking blocks 421 disposed on both sides of the positioning block 430. The locking blocks 421 are slidably connected to the inner wall of the positioning block 430, and the two locking blocks 421 are disposed opposite to each other. A first spring 4221 is fixedly connected between the locking blocks 421 and the inner wall of the positioning block 430. The cross-section of the locking block 421 is a right-angled triangle, and the inclined surface is disposed on the outer side of the positioning block 430. A connector 422 is slidably connected to the inner top wall of the positioning block 430. The top end of the connector 422 extends through the positioning block 430 and is provided with a pull ring. A crossbar 423 is fixedly connected to one side surface of the locking block 421 located inside the positioning block 430. An adjusting rod 424 is hinged between the crossbar 423 and the connector 422.

[0022] In this embodiment, the surface of the positioning plate 410 is provided with multiple openings that cooperate with the positioning block 430. The surfaces of the positioning plates 410 at the upper and lower ends are provided with two handles, which are located between three openings. The surfaces of the positioning plates 410 on both sides are provided with one handle. There are only two positioning blocks 430 on both sides of the filter plate 300. One of the positioning blocks 430 is replaced by a slider, and the surface of the corresponding positioning block 430 is provided with an opening for the slider to pass through. The surface of the crossbar 423 is fixedly connected with a hinge block. The bottom end of the adjusting rod 424 is hinged to the hinge block. The connecting piece 422 consists of a sliding block that is slidably connected to the inner wall above the positioning block 430 and a connecting block that is fixedly connected to the bottom of the sliding block. The top ends of the two adjusting rods 424 are hinged to the inner wall of the connecting block. The upper half of the positioning block 430 with the snap-fit ​​component 420 is hollow, and the lower half is provided with a sliding cavity for the crossbar 423 to slide. The sliding block and the pull ring are connected by a vertical rod. It should be noted that this device optimizes the installation method of the filter screen and the filter plate 300 by setting the disassembly and assembly mechanism 400 around and inside the filter plate 300. Each component of the disassembly and assembly mechanism 400 is set in a position that does not interfere with the normal filtration of the filter plate 300. Furthermore, the disassembly and assembly mechanism 400 of this device only provides a function for the installation between the filter plate 300 and the filter screen. Therefore, the disassembly and assembly mechanism 400 of this device will not have any impact on the normal use of the filter plate 300.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the snap-fit ​​block 440 is an isosceles right triangle, and multiple through holes are formed on the surface of the snap-fit ​​block 440. A positioning rod 441 is slidably connected to the inner wall of the filter plate 300. The positioning rod 441 is used in conjunction with the through holes, and a second spring 442 is fixedly connected between the positioning rod 441 and the inner wall of the filter plate 300.

[0024] In this embodiment, silicone seals are provided around the device. The seals are positioned between multiple snap-fit ​​blocks 440, and the thickness of the seals is equal to the thickness of the snap-fit ​​blocks 440. The seals are used to prevent the snap-fit ​​blocks 440 from affecting the sealing between the multiple filter plates 300.

[0025] Working principle: When removing the filter screen, first pull the ring of connector 422 to move the entire connector 422 upward. When connector 422 moves upward, it will drive the top ends of the two adjusting rods 424 to move. When the two adjusting rods 424 move upward, their bottom ends will move closer to each other and pull the two crossbars 423 to move relative to each other. When the crossbars 423 move, they will drive the locking block 421 to retract into the positioning block 430 and compress the first spring 4221. When the locking block 421 is fully retracted into the positioning block 430, the positioning plate 410 is no longer restricted by the locking block 421. At this point, the staff can directly remove the positioning plate 410 using the handle on its surface. Repeat this step to remove all the filter screens around the filter plate 300 from the positioning block 430. Then, press the positioning rod 441 into the filter plate 300 until it retracts into the snap-fit ​​block 440. At this point, the snap-fit ​​block 440 is no longer restricted by the positioning rod 441. Simply remove the snap-fit ​​block 440 from the surface of the filter plate 300 to loosen the filter screen. Repeat this step to remove all the filter screens at the four corners of the filter plate 300. The filter screens can then be replaced directly. When installing the filter screen, first lay the filter screen flat on both sides of the filter plate 300, then insert the four sides of the filter screen into the positioning blocks 430 respectively, and then insert the positioning plate 410 into the positioning blocks 430. When the positioning plate 410 is inserted into the positioning blocks 430, the inner wall of the positioning block 430 will slide down along the surface of the positioning block 430. During the sliding process, the inclined surface of the clamping block 421 will be squeezed to push the clamping block 421 into the inner wall of the positioning block 430 until the clamping block 421 compresses the first spring 4221 and is completely retracted into the positioning block 430. When the positioning plate 410 moves to be in contact with the surface of the filter plate 300, the positioning plate 410 is completely under the clamping block 421. At this time, the clamping block 421 loses its positioning position. When the positioning plate 410 is pressed, the first spring 4221 is released, pushing the locking block 421 to reset, thereby fixing the positioning block 430 between the locking block 421 and the filter screen. This operation is repeated to lay the filter screen flat on the four sides of the filter plate 300. Then, the filter screen is adjusted so that the filter screen is neatly arranged at the four corners of the filter plate 300. At this time, the positioning rod 441 is pressed, causing the positioning rod 441 to compress the second spring 442 and retract into the filter plate 300. The locking block 440 passes through the positioning rod 441 and the positioning hole on the surface of the locking block 440 is aligned with the positioning rod 441. The second spring 442 pushes the positioning rod 441 into the positioning hole to complete the fixation, thereby restricting the filter screen at the four corners of the filter plate 300.

[0026] It should be noted that the hydraulic mechanism 210, feeding mechanism 200, first spring 4221, second spring 442 and filter plate 300 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the hydraulic mechanism 210 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filter press device that facilitates filter screen replacement, characterized in that, include: The machine body (100), the hydraulic mechanism (210) installed inside the machine body (100), and the feeding mechanism (200) are provided with multiple filter plates (300). The disassembly and assembly mechanism (400) includes a positioning plate (410) disposed on the four sides of the filter plate (300) and a plurality of positioning blocks (430). The positioning plate (410) is inserted between the plurality of positioning blocks (430). A snap-fit ​​component (420) is disposed inside the positioning block (430) located in the middle of the filter plate (300). A snap-fit ​​block (440) is disposed at each of the four corners of the filter plate (300).

2. The filter press device for easy filter screen replacement according to claim 1, characterized in that, The surfaces of the positioning plates (410) located at the upper and lower ends of the filter plate (300) are each provided with two handles, and the surfaces of the positioning plates (410) located on both sides of the filter plate (300) are each provided with one handle.

3. The filter press device for easy filter screen replacement according to claim 1, characterized in that, The snap-fit ​​assembly (420) includes snap-fit ​​blocks (421) disposed on both sides of the positioning block (430). The snap-fit ​​blocks (421) are slidably connected to the inner wall of the positioning block (430). The two snap-fit ​​blocks (421) are disposed opposite to each other. A first spring (4221) is fixedly connected between the snap-fit ​​blocks (421) and the inner wall of the positioning block (430).

4. The filter press device for easy filter screen replacement according to claim 3, characterized in that, The cross-section of the card block (421) is a right triangle and the inclined surface is set on the outside of the positioning block (430).

5. The filter press device for easy filter screen replacement according to claim 4, characterized in that, The inner top wall of the positioning block (430) is slidably connected to a connector (422), the top end of the connector (422) extends through the positioning block (430) and is provided with a pull ring.

6. The filter press device for easy filter screen replacement according to claim 5, characterized in that, The card block (421) is located inside the positioning block (430) and a crossbar (423) is fixedly connected to one side surface. An adjusting rod (424) is hinged between the crossbar (423) and the connector (422).

7. The filter press device for easy filter screen replacement according to claim 1, characterized in that, The snap-fit ​​block (440) is an isosceles right triangle, and the surface of the snap-fit ​​block (440) has multiple through holes.

8. The filter press device for easy filter screen replacement according to claim 7, characterized in that, A positioning rod (441) is slidably connected to the inner wall of the filter plate (300). The positioning rod (441) is used in conjunction with the through hole. A second spring (442) is fixedly connected between the positioning rod (441) and the inner wall of the filter plate (300).

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