Extrusion device for solid-liquid separation

Abstract

The utility model provides an extrusion device for solid-liquid separation. The extrusion device comprises a box body and a plurality of extrusion plates, the driving part is arranged at one end in the box body; the fixing assembly is provided with a first clamping part and a first extrusion screen with filtering holes, and the fixing assembly is located at the other end in the box body; the pushing assembly is provided with a second clamping part and a second extrusion screen with filtering holes, and the pushing assembly is connected with the driving component through a telescopic part and can move relative to the fixing assembly; materials enter the box body from the feeding port, the driving component drives the telescopic part to stretch out and draw back and drives the pushing assembly to push the materials to move towards the fixing assembly, the materials are gradually extruded between the second extrusion screen and the first extrusion screen till the second clamping part is clamped with the first clamping part, and therefore liquid in the materials is discharged from the filtering holes. The extrusion device for solid-liquid separation solves the technical problems that in the prior art, an extrusion device for solid-liquid separation is large in occupied area, and materials are prone to being left at corners.

Description

Technical Field

[0001] The utility model relates to the field of solid-liquid separation equipment, in particular to an extrusion device for solid-liquid separation. Background Art

[0002] Currently, the main technologies used for solid waste dehydration are screw extrusion, centrifugal dehydration, and high-pressure extrusion. Each of these technologies has its own limitations. For example, screw extruders have vulnerable parts, a short lifespan, and high maintenance costs. Centrifugal dehydrators produce high moisture content after dehydration. Plate and frame filter presses and belt filter presses require filter cloths, which are prone to clogging and require high-pressure cleaning, resulting in complex maintenance.

[0003] While metal ram extruders overcome some of the aforementioned issues to a certain extent, their feed head is typically a flat plate structure, which can lead to dead zones in the material being extruded, low material filling efficiency, and uneven force on the pusher head, all of which affect the extrusion effect. Furthermore, this type of equipment occupies a large area, making installation and transportation inconvenient.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide an extrusion device for solid-liquid separation to solve the technical problems in the related art that the extrusion device for solid-liquid separation occupies a large area and materials are easily retained in corners.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: an extrusion device for solid-liquid separation is provided, comprising: a box body, which is provided with a feed port; a driving component, which is arranged at one end of the box body; a fixed component, which is provided with a first clamping part and a first extrusion screen with filter holes on the fixed component, and the fixed component is located at the other end of the box body; a pushing component, which is provided with a second clamping part and a second extrusion screen with filter holes on the pushing component, and the pushing component is connected to the driving component through a telescopic part and is movable relative to the fixed component; the material enters the box body from the feed port, and the driving component drives the telescopic part to extend and retract, driving the pushing component to push the material toward the fixed component, and the material is gradually squeezed between the second extrusion screen and the first extrusion screen until the second clamping part is engaged with the first clamping part, thereby discharging the liquid in the material from the filter holes.

[0007] Furthermore, the driving component is a multi-stage telescopic cylinder, the telescopic part is the cylinder body of the multi-stage telescopic cylinder, the cylinder body is connected to the pushing assembly, and the piston rod of the multi-stage telescopic cylinder is fixed on the box body; when the multi-stage telescopic cylinder is started, the piston rod remains fixed, and the cylinder body moves relative to the piston rod, thereby driving the pushing assembly to move relative to the fixed assembly.

[0008] Furthermore, the multi-stage telescopic oil cylinder also includes a sleeve rod, which is sleeved on the cylinder body. The sleeve rod is used to limit the movement range of the cylinder body to prevent the cylinder body from deflecting during the telescopic process.

[0009] Furthermore, the fixing assembly also includes a first frame, the first frame is provided with a filter hole for drainage, one end of the first frame is fixed to the inner wall of the box, the other end of the first frame is connected to the first extrusion screen, and the first clamping part is provided on the first frame.

[0010] Furthermore, the pushing assembly also includes a second frame, the second frame is provided with a filter hole for drainage, one end of the second frame is connected to the telescopic part, the other end of the second frame is connected to the second extrusion screen, and the second clamping part is provided on the second frame.

[0011] Furthermore, the first extrusion screen and the second extrusion screen are both semicircular screen structures. When the second frame is connected to the first frame, the first extrusion screen and the second extrusion screen are combined to form a coaxial cylindrical structure.

[0012] Furthermore, the first engaging portion is a convex pointed angle, which is arranged on the first frame, and the second engaging portion is a concave pointed angle, which matches the convex pointed angle and is arranged on the second frame; when the pushing component moves to the extrusion end point, the second engaging portion moves with the second frame, and the concave pointed angle slides along the inclined surface of the convex pointed angle, and the convex pointed angle is clamped into the concave pointed angle to form a clamping state, thereby ensuring that the first extrusion screen is aligned with the second extrusion screen, and forming a cylindrical structure with high coaxiality to avoid material retention and promote liquid discharge.

[0013] Furthermore, there are two first clamping parts, which are respectively arranged at the upper and lower ends of the first frame; there are two second clamping parts, which are respectively arranged at the upper and lower ends of the second frame to ensure that the first extrusion screen and the second extrusion screen are concentric when clamped.

[0014] Furthermore, a plurality of filter holes are provided on the bottom plate of the box body. During the squeezing process, the liquid is discharged from the fixing component and the pushing component respectively, and then flows out through the filter holes of the bottom plate.

[0015] Furthermore, a cleaning component is provided at the bottom of the pushing assembly. When the telescopic portion drives the pushing assembly to retract, the pushing assembly automatically cleans the bottom plate through the cleaning component to avoid clogging of the filter holes.

[0016] Beneficial effects:

[0017] 1. By designing the semicircular structure of the first extrusion screen and the second extrusion screen, the flow path of the material during the extrusion process is optimized, preventing the material from being trapped in the corners and joints of the equipment during the extrusion process, and improving the extrusion efficiency.

[0018] 2. By setting the engagement mechanism of convex and concave corners, the high coaxiality of the first and second extrusion screens is ensured, thereby effectively reducing material retention.

[0019] 3. Many existing extrusion equipment takes up a lot of space and is inconvenient to install and transport. By arranging the drive components, push components and fixed components inside the box, the equipment's footprint is significantly reduced, making it easier for users to use and arrange it in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of an extrusion device for solid-liquid separation used in an embodiment of the present utility model from one perspective;

[0021] Figure 2 This is a schematic structural diagram of the extrusion device for solid-liquid separation used in an embodiment of the present utility model from another perspective;

[0022] Figure 3 yes Figure 2 mid-RR section view;

[0023] Figure 4 This is a diagram of the extrusion state of the extrusion device for solid-liquid separation used in an embodiment of the present utility model.

[0024] The above drawings include the following reference numerals:

[0025] 1. Box body; 11. Feeding port; 12. Bottom plate; 2. Multi-stage telescopic cylinder; 21. Cylinder body; 22. Piston rod; 23. Sleeve rod; 3. Fixing assembly; 31. First engaging portion; 311. Convex corner; 32. First extrusion screen; 33. First frame; 4. Pushing assembly; 41. Second engaging portion; 411. Concave corner; 42. Second extrusion screen; 43. Second frame. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] According to an embodiment of the present invention, an extrusion device for solid-liquid separation is provided. Figures 1 to 4, including: a box body 1, which is provided with a feed inlet 11; a driving component, which is arranged at one end of the box body 1; a fixing component 3, which is provided with a first clamping part 31 and a first squeezing screen 32 with filter holes on the fixing component 3, and the fixing component 3 is located at the other end of the box body 1; a pushing component 4, which is provided with a second clamping part 41 and a second squeezing screen 42 with filter holes on the pushing component 4, and the pushing component 4 is connected to the driving component through a telescopic part and is movable relative to the fixing component 3; the material enters the box body 1 from the feed inlet 11, and the driving component drives the telescopic part to extend and retract, driving the pushing component 4 to push the material toward the fixing component 3, and the material is gradually squeezed between the second squeezing screen 42 and the first squeezing screen 32 until the second clamping part 41 is engaged with the first clamping part 31, so that the liquid in the material is discharged from the filter holes. Figure 1 and Figure 2 As shown, only a driving component is used inside the casing 1 to drive the pushing component 4 to move closer to the fixed component 3, so that the material sandwiched between the pushing component 4 and the fixed component 3 is squeezed, prompting the liquid in the solid to be squeezed out. The device occupies a small area and takes up little space. After the material enters the casing 1 through the feed port 11, the driving component drives the telescopic part to move the pushing component 4, and the material is gradually squeezed between the second squeezing screen 42 and the first squeezing screen 32. As the second engaging portion 41 engages with the first engaging portion 31, the material is fully squeezed and the liquid is effectively discharged through the filter holes, which significantly improves the efficiency of solid-liquid separation. When the second engaging portion 41 engages with the first engaging portion 31, the pushing component 4 and the fixed component 3 form a precisely aligned structure, avoiding the problem of material being trapped in the corners during the extrusion process, and improving the filling efficiency and separation effect of the material. The extrusion device for solid-liquid separation of this embodiment solves the technical problems in the related art that the extrusion device for solid-liquid separation occupies a large area and the material is easily trapped in the corners.

[0028] See Figure 1 、 Figure 2 and Figure 3 In this embodiment of the extrusion device for solid-liquid separation, the driving component is a multi-stage telescopic cylinder 2, the telescopic portion of which is the cylinder body 21 of the multi-stage telescopic cylinder 2. The cylinder body 21 is connected to the push assembly 4, and the piston rod 22 of the multi-stage telescopic cylinder 2 is fixed to the housing 1. When the multi-stage telescopic cylinder 2 is activated, the piston rod 22 remains stationary, and the cylinder body 21 moves relative to the piston rod 22, thereby driving the push assembly 4 to move relative to the fixed assembly 3. Because the piston rod 22 of the multi-stage telescopic cylinder 2 is stationary and the cylinder body 21 moves relative to the piston rod 22, the overall length of the device is reduced, making the device design more compact, thereby effectively saving the device's occupied space and making it suitable for narrow installation environments or work sites with limited space.

[0029] See Figure 3 and Figure 4In the extrusion device for solid-liquid separation of this embodiment, the multi-stage telescopic oil cylinder 2 also includes a sleeve rod 23, which is mounted on the cylinder body 21. The sleeve rod 23 is used to limit the movement range of the cylinder body 21 and prevent the cylinder body 21 from deflecting during the extension and retraction process. While limiting the movement range of the cylinder body 21, the sleeve rod 23 can ensure the smooth operation of the cylinder body 21, avoid radial shaking of the cylinder body 21 during extension and retraction, and ensure that the push assembly 4 moves along the set trajectory during the extrusion process, thereby ensuring uniform extrusion of the material and improving the solid-liquid separation effect. In this embodiment, the cylinder body 21 is two-stage telescopic. Accordingly, there are three sleeve rods 23, one of which is fixed to the outside of the multi-stage telescopic oil cylinder 2, and the other two cooperate with the two-stage telescopic cylinder body 21 to synchronize extension and retraction. When the multi-stage telescopic oil cylinder 2 is extended and retracted step by step, the sleeve rods 23 mounted on the outside of the cylinder body 21 also extend and retract accordingly, thereby ensuring that the cylinder body 21 always moves along the set trajectory.

[0030] See Figure 3 and Figure 4 In the extrusion device for solid-liquid separation of this embodiment, the fixed assembly 3 further includes a first frame 33, which is provided with a filter hole for draining liquid. One end of the first frame 33 is fixed to the inner wall of the box body 1, and the other end of the first frame 33 is connected to the first extrusion screen 32. The first engaging portion 31 is also provided on the first frame 33. Since one end of the first frame 33 is fixed to the inner wall of the box body 1 and the other end is connected to the first extrusion screen 32, the fixed assembly 3 is more stable during the extrusion process, ensuring that positional displacement does not occur under high-pressure operation, thereby increasing the stability and durability of the device.

[0031] See Figure 3 and Figure 4 In this embodiment of the extrusion device for solid-liquid separation, the push assembly 4 further includes a second frame 43, which is provided with a filter hole for draining liquid. One end of the second frame 43 is connected to the telescopic portion, and the other end of the second frame 43 is connected to the second extrusion screen 42. The second engaging portion 41 is disposed on the second frame 43. One end of the second frame 43 is connected to the telescopic portion, and the other end is connected to the second extrusion screen 42, ensuring the structural stability of the push assembly 4 during movement. Even in the extrusion state, the overall structural strength and durability are maintained, preventing deformation or displacement of the push assembly 4.

[0032] See Figure 3 and Figure 4In the extrusion device for solid-liquid separation of this embodiment, the first extrusion screen 32 and the second extrusion screen 42 both have semicircular mesh structures. When the second frame 43 is connected to the first frame 33, the first extrusion screen 32 and the second extrusion screen 42 combine to form a coaxial cylindrical structure. The semicircular mesh structures of the first extrusion screen 32 and the second extrusion screen 42 result in a cylindrical structure for the solid waste being formed. When the two combine to form a coaxial cylindrical structure, they ensure uniform force on the material during the extrusion process, reducing material retention and dead corner issues.

[0033] like Figure 1 and 2 As shown, in this embodiment, the extrusion device is also connected to the feeding device. Before the material is dehydrated, the feeding device and the extrusion device are not connected. Sealing plates are provided at both ends of the fixing assembly 3 to cooperate with the fixing assembly 3 and the pushing assembly 4 to extrude and shape the material. After shaping, the sealing plates are opened, connecting the feeding device and the extrusion device, and delivering the dehydrated solid material.

[0034] See Figure 3 and Figure 4 In the extrusion device for solid-liquid separation of this embodiment, the first engaging portion 31 is a convex corner 311, which is arranged on the first frame 33, and the second engaging portion 41 is a concave corner 411, which matches the convex corner 311 and is arranged on the second frame 43. When the pushing component 4 moves to the extrusion end point, the second engaging portion 41 moves with the second frame 43, and the concave corner 411 slides along the inclined surface of the convex corner 311, and the convex corner 311 is clamped into the concave corner 411, forming a clamped state, thereby ensuring that the first extrusion screen 32 is aligned with the second extrusion screen 42, and forming a cylindrical structure with high coaxiality to prevent material retention and promote liquid discharge. The sliding and clamping process of the concave corner 411 and the convex corner 311 ensures the perfect alignment of the extrusion screens, forming a uniform cylindrical extrusion surface. The interplay of the engaging components creates a highly coaxial cylindrical structure, effectively ensuring uniform force distribution during extrusion, preventing material from accumulating in corners and edges, and thus improving the efficiency and effectiveness of solid-liquid separation. Furthermore, as concave corner 411 slides along the slope of convex corner 311, it displaces material trapped between concave corner 411 and convex corner 311.

[0035] See Figure 3 and Figure 4The extrusion device for solid-liquid separation in this embodiment has two first engaging portions 31, one located at the upper and lower ends of a first frame 33; and two second engaging portions 41, one located at the upper and lower ends of a second frame 43, to ensure that the first and second extrusion screens 32 and 42 are concentric when engaged. This multi-point engagement effectively reduces deviations caused by single-point engagement, ensuring high coaxiality of the extrusion screens and improving solid-liquid separation.

[0036] See Figure 4 In the extrusion device for solid-liquid separation of this embodiment, a plurality of filter holes are provided on the bottom plate 12 of the box body 1. During the extrusion process, the liquid is discharged from the fixed component 3 and the pushing component 4 respectively, and then flows out through the filter holes of the bottom plate 12. The filter holes are provided on the bottom plate 12 of the box body below the cavity corresponding to the fixed component 3, and the squeezed liquid flows out through the filter holes of the bottom plate 12, which accelerates the solid-liquid separation process.

[0037] In this embodiment of the extrusion device for solid-liquid separation, a cleaning component is provided at the bottom of the push assembly 4. As the telescopic portion drives the push assembly 4 to retract, the push assembly 4 automatically cleans the bottom plate 12 through the cleaning component, preventing clogging of the filter holes. This automatic cleaning of the bottom plate 12 during the retraction of the push assembly 4 effectively prevents material from remaining in the filter holes during the extrusion process, reducing the need for manual cleaning of the filter holes during use.

[0038] 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 sequential order. 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 a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0040] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0041] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0042] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An extrusion device for solid-liquid separation, characterized in that: include: A box body (1), wherein the box body (1) is provided with a feed inlet (11); A driving component, the driving component being arranged at one end inside the box (1); A fixing assembly (3), wherein the fixing assembly (3) is provided with a first engaging portion (31) and a first extrusion screen (32) with filter holes, and the fixing assembly (3) is located at the other end of the box body (1); a pushing assembly (4), the pushing assembly (4) being provided with a second engaging portion (41) and a second squeezing screen (42) with filtering holes, the pushing assembly (4) being connected to the telescopic portion of the driving component and being movable relative to the fixing assembly (3); The material enters the box (1) from the feed port (11), and the driving component drives the telescopic portion to extend and retract, driving the pushing component (4) to push the material toward the fixed component (3). The material is gradually squeezed between the second squeezing screen (42) and the first squeezing screen (32) until the second engaging portion (41) engages with the first engaging portion (31), thereby allowing the liquid in the material to be discharged from the filter hole.

2. The extrusion device for solid-liquid separation according to claim 1, characterized in that: The driving component is a multi-stage telescopic oil cylinder (2), the telescopic portion is a cylinder body (21) of the multi-stage telescopic oil cylinder (2), the cylinder body (21) is connected to the pushing assembly (4), and the piston rod (22) of the multi-stage telescopic oil cylinder (2) is fixed on the box (1); when the multi-stage telescopic oil cylinder (2) is started, the piston rod (22) remains fixed, and the cylinder body (21) moves relative to the piston rod (22), thereby driving the pushing assembly (4) to move relative to the fixed assembly (3).

3. The extrusion device for solid-liquid separation according to claim 2, characterized in that: The multi-stage telescopic oil cylinder (2) further comprises a sleeve rod (23), wherein the sleeve rod (23) is sleeved on the cylinder body (21), and the sleeve rod (23) is used to limit the movement range of the cylinder body (21) to prevent the cylinder body (21) from deflecting during the telescopic process.

4. The extrusion device for solid-liquid separation according to claim 1, characterized in that: The fixing assembly (3) further comprises a first frame (33), the first frame (33) being provided with a filter hole for draining liquid, one end of the first frame (33) being fixed to the inner wall of the box body (1), the other end of the first frame (33) being connected to the first extrusion screen (32), and the first engaging portion (31) being provided on the first frame (33).

5. The extrusion device for solid-liquid separation according to claim 4, characterized in that: The pushing assembly (4) further includes a second frame (43), the second frame (43) being provided with a filter hole for draining liquid, one end of the second frame (43) being connected to the telescopic portion, the other end of the second frame (43) being connected to the second squeezing screen (42), and the second engaging portion (41) being provided on the second frame (43).

6. The extrusion device for solid-liquid separation according to claim 5, characterized in that: The first extrusion screen (32) and the second extrusion screen (42) are both semicircular screen structures. When the second frame (43) is connected to the first frame (33), the first extrusion screen (32) and the second extrusion screen (42) are combined to form a coaxial cylindrical structure.

7. The extrusion device for solid-liquid separation according to claim 6, characterized in that: The first engaging portion (31) is a convex corner (311), and the convex corner (311) is arranged on the first frame (33); the second engaging portion (41) is a concave corner (411), and the concave corner (411) matches the convex corner (311), and the concave corner (411) is arranged on the second frame (43); when the pushing component (4) moves to the extrusion end point, the second engaging portion (41) moves along with the second frame (43), and the concave corner (411) slides along the inclined surface of the convex corner (311), and the convex corner (311) is clamped into the concave corner (411), forming a clamping state, thereby ensuring that the first extrusion screen (32) is aligned with the second extrusion screen (42), and forming a cylindrical structure with high coaxiality, so as to avoid material retention and promote liquid discharge.

8. The extrusion device for solid-liquid separation according to claim 5, characterized in that: There are two first engaging parts (31), and the two first engaging parts (31) are respectively arranged at the upper and lower ends of the first frame (33); there are two second engaging parts (41), and the two second engaging parts (41) are respectively arranged at the upper and lower ends of the second frame (43), so as to ensure that the first extrusion screen (32) and the second extrusion screen (42) are concentric when engaged.

9. The extrusion device for solid-liquid separation according to claim 1, characterized in that: A plurality of filter holes are provided on the bottom plate (12) of the box body (1). During the squeezing process, liquid is discharged from the fixing component (3) and the pushing component (4) respectively, and then flows out through the filter holes of the bottom plate (12).

10. The extrusion device for solid-liquid separation according to claim 9, characterized in that: A cleaning component is provided at the bottom of the pushing component (4); when the telescopic portion drives the pushing component (4) to retract, the pushing component (4) automatically cleans the bottom plate (12) through the cleaning component to avoid clogging of the filter holes.

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