Water-soaked manure solid-liquid separator and working method thereof

Abstract

The invention relates to a bubble manure solid-liquid separator and a working method thereof, the bubble manure solid-liquid separator comprises a rack and an annular filter screen belt, a blanking hopper is arranged above the front end of the filter screen belt, and a pressing cylinder for extruding materials is arranged above the rear end of the filter screen belt; a pair of swing arms capable of swinging up and down is hinged to the two sides of the rear end of the rack, the two ends of the pressing cylinder are rotationally connected to the swing arms on the two sides, and adjusting mechanisms used for adjusting the downward pressure of the pressing cylinder are arranged on the swing arms. The water-soaked manure solid-liquid separator is simple in structure, reasonable in design and low in energy consumption, materials are extruded at the rear end of the filter screen belt through the pressing cylinder, the solid-liquid separation effect is improved, it can be guaranteed that the manure residue humidity and the manure liquid concentration are both within the reasonable range by adjusting the downward pressure of the pressing cylinder, and follow-up treatment is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-liquid separation, in particular to a solid-liquid separator for flushing manure and its working method. Background Art

[0002] In intensive and large-scale livestock and poultry farming, solid-liquid separation is widely adopted in the subsequent treatment. The solid (i.e., manure residue) is used to produce organic fertilizer, and the liquid (concentrated manure water) enters the biogas digester, and the biogas slurry is further processed. In recent years, there has also emerged a technology in which the manure liquid does not enter the biogas digester, but is directly decomposed into organic liquid fertilizer by special bacterial agents under micro-aerobic conditions.

[0003] At present, plate-frame type and spiral press type solid-liquid separators are widely used in the industry; however, these two types of solid-liquid separators need to be used in combination with flocculants, and the humidity of the manure residue cannot be adjusted, which easily leads to the phenomenon that the manure residue is too dry (the composting effect is poor when it is too dry) or the concentration of the manure water is too high (it is difficult to decompose when it is too thick), which is not conducive to the implementation of the subsequent direct decomposition treatment technology. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a solid-liquid separator for flushing manure and its working method, which has good solid-liquid separation effect. By adjusting the downward pressure of the pressing cylinder, it can ensure that the humidity of the manure residue and the concentration of the manure liquid are both within a reasonable range.

[0005] The present invention is realized by the following scheme: A solid-liquid separator for flushing manure includes a frame and an annular filter belt. A feeding hopper is arranged above the front end of the filter belt, and a pressing cylinder for extruding materials is arranged above the rear end of the filter belt; on both sides of the rear end of the frame, there are a pair of swing arms that can swing up and down. The two ends of the pressing cylinder are rotatably connected to the swing arms on both sides, and an adjusting mechanism for adjusting the downward pressure of the pressing cylinder is arranged on the swing arms.

[0006] Further, the adjusting mechanism includes a pressurizing frame fixedly connected between the upper ends of the swing arms on both sides for placing counterweights.

[0007] Further, a limit stop block for restricting the downward swing angle of the swing arm is arranged beside the hinge end of the swing arm at the rear end of the frame, so as to ensure that there is still a small gap between the pressing cylinder at the lowest position and the rear roller, thus preventing material blockage.

[0008] Further, a rotatable front roller and a rear roller are installed on the frame. The filter belt is sleeved on the front roller and the rear roller. The pressing cylinder is located obliquely above the rear roller and its bottom side is close to the outer surface of the filter belt on the outer side of the rear roller.

[0009] Furthermore, the rear drum is driven by a motor, and the motor uses a variable frequency speed regulation motor; one end of the rear drum is connected to the motor transmission, and the other end is provided with a first pulley; an inclined bracket fixed to the frame is provided next to the first pulley, and a coaxially arranged lower gear and a second pulley are provided on the inclined bracket, and the second pulley is connected to the first pulley through a belt transmission, and an upper gear meshing with the lower gear is provided at one end of the pressing cylinder facing the lower gear, and the upper and lower gears have the same diameter and module.

[0010] Furthermore, the diameter φ1 of the first pulley, the radius R1 of the rear drum, the diameter φ2 of the second pulley, and the radius R2 of the pressing drum satisfy the relationship: φ2 / φ1= R2 / R1.

[0011] Furthermore, a longitudinal support rail for supporting the upper layer of the filter mesh belt is provided below the upper layer of the filter mesh belt, and the longitudinal support rail is fixedly connected to the transverse support rod below it; and edge guard plates are provided on both sides of the upper layer of the filter mesh belt.

[0012] Furthermore, a front scraping plate and a rear scraping plate are provided above the upper layer of the filter belt. Both the front scraping plate and the rear scraping plate are V-shaped and have an adjustable gap between them and the filter belt. The tip of the front scraping plate faces forward, and the tip of the rear scraping plate faces backward.

[0013] Furthermore, a scraper plate is provided below the rear drum, and the scraper plate is in contact with the outer surface of the filter belt outside the rear drum.

[0014] Furthermore, a concrete base is provided under the frame, a manure liquid diversion groove is provided on the upper side of the concrete base, a frame seat is embedded in the concrete base, and the lower part of the frame is connected to the frame seat.

[0015] Another technical solution of the present invention: a working method of the bubble manure solid-liquid separator as described above, wherein the material falls from the hopper onto the filter belt, and the filter belt drives the material to be transported backward. During the transportation process, the feces liquid in the material passes through the filter belt to complete the initial solid-liquid separation; then, the material enters the bottom of the pressing cylinder, and the pressing cylinder is used to squeeze the material to achieve further solid-liquid separation.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the foam manure solid-liquid separator of the present invention has a simple structure, reasonable design, and low energy consumption. The gravity of the pressing cylinder is used to squeeze the material at the rear end of the filter belt to improve the solid-liquid separation effect. By adjusting the downward pressure of the pressing cylinder, the humidity of the manure residue and the concentration of the manure liquid can be ensured to be within a reasonable range, which is beneficial to subsequent processing.

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view of the embodiment of the present invention; Figure 2 is the top view of the embodiment of the present invention; Figure 3 is Figure 1 view B in Figure 4 is Figure 1 the schematic diagram of the local structure of Figure 5 is Figure 1 sectional view A-A in Description of reference numerals in the figure: 1 - front bearing seat, 2 - front roller, 3 - blanking hopper, 4 - filter mesh belt, 5 - frame, 6 - front scraping plate, 7 - rear scraping plate, 8 - transverse support rod, 9 - swing arm, 10 - rear roller, 11 - pressing frame, 12 - counterweight iron, 13 - pressing cylinder, 14 - upper gear, 15 - lower gear, 16 - second pulley, 17 - inclined bracket, 18 - belt, 19 - first pulley, 20 - rear bearing seat, 21 - scraping plate, 22 - plate seat, 23 - frame seat, 24 - longitudinal support guide rail, 25 - scraping plate hanging bracket, 26 - edge protection baffle, 27 - motor, 28 - limit block. Detailed implementation manners

[0019] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0020] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, steps, operations, devices, components, and / or combinations thereof.

[0021] As Figures 1 - 5As shown, a foam manure solid-liquid separator includes a frame 5 and an annular filter belt 4. The filter belt 4 is made of nylon mesh belt. A drop hopper 3 is provided above the front end of the filter belt 4, and a pressure cylinder 13 for squeezing materials is provided above the rear end of the filter belt 4. A pair of swing arms 9 that can swing up and down are hinged on both sides of the rear end of the frame 5. The two ends of the pressure cylinder 13 are rotatably connected to the swing arms 9 on both sides. The swing arms 9 are provided with an adjustment mechanism for adjusting the downward pressure of the pressure cylinder 13. The pressure cylinder uses gravity to be in a downward pressure state to squeeze the material. By adjusting the downward pressure through the adjustment mechanism, the humidity (or moisture content) of the manure residue can be ensured to be within a reasonable range (60% to 70%), and the concentration of concentrated manure water (manure liquid) is also within a reasonable range (97% to 99%).

[0022] In this embodiment, the adjustment mechanism includes a pressure frame 11 fixedly connected between the upper ends of the swing arms on both sides for placing the counterweight iron 12. The pressure of the pressing cylinder can be adjusted by increasing or decreasing the number of the counterweight iron on the pressure frame, which is convenient to use and easy to operate.

[0023] In this embodiment, a limit stopper 28 is provided at the rear end of the frame beside the hinged end of the swing arm to limit the swing angle of the swing arm. The limit block is used to limit the lowest swing angle of the swing arm, thereby ensuring the lowest position of the pressing cylinder. When the pressing cylinder is at the lowest position, there is a minimum gap (for example, 5mm) between the pressing cylinder and the filter belt to ensure that there is no material blockage and to prevent the pressing cylinder from being lifted to a state where it cannot be reset due to encountering large hard materials.

[0024] In this embodiment, a rotatable front drum 2 and a rear drum 10 are installed on the frame 5, and the filter belt 4 is mounted on the front drum 2 and the rear drum 10. The pressing drum 13 is located obliquely above the rear drum 10 and the bottom side is close to the outer surface of the filter belt outside the rear drum.

[0025] In this embodiment, the rear drum 10 is driven by a motor, which uses a variable frequency speed regulating motor. One end of the rear drum 10 is connected to the motor by transmission, and the other end is provided with a first pulley 19; an oblique bracket 17 fixed to the frame is provided beside the first pulley 19, and a coaxially arranged lower gear 15 and a second pulley 16 are provided on the oblique bracket 17, and the second pulley 16 is connected to the first pulley 19 by a belt 18. The pressing cylinder 13 is provided with an upper gear 14 meshing with the lower gear at one end facing the lower gear 15. Only one motor drives the front drum, the rear drum and the pressing drum to move, with a simple structure and low energy consumption. The rear drum is the active drum, the front drum is the driven drum, and the upper and lower gears have the same diameter and module.

[0026] In this embodiment, the diameter φ1 of the first pulley, the radius R1 of the rear roller, the diameter φ2 of the second pulley, and the radius R2 of the pressing cylinder satisfy the relational expression: φ2 / φ1 = R2 / R1. Using the above transmission relationship, it can be ensured that the outer linear speeds of the pressing cylinder and the rear roller are equal, ensuring that the manure residue will be extruded as soon as it enters between the two cylinders, and preventing the occurrence of material blockage or jamming.

[0027] In this embodiment, a longitudinal support guide rail 24 for supporting the upper belt of the filter mesh belt 4 is provided below the upper belt of the filter mesh belt, and the longitudinal support guide rail is fixedly connected to a transverse support rod 8 below it; guard edge baffles 26 are provided on both sides of the upper belt of the filter mesh belt.

[0028] In this embodiment, a front scraping plate 6 and a rear scraping plate 7 are provided above the upper belt of the filter mesh belt. The front scraping plate 6 and the rear scraping plate 7 are respectively connected to the frame through scraping plate hanging brackets above. The front scraping plate and the rear scraping plate are both V-shaped and have an adjustable gap with the filter mesh belt. The tip of the front scraping plate faces forward, and the tip of the rear scraping plate faces backward; the front scraping plate 6 and the rear scraping plate 7 are connected to the scraping plate hanging brackets by bolts, and the height of the scraping plate can be adjusted by bolts to adjust the size of the gap. Using two sets of scraping plates horizontally suspended above the filter mesh belt to control the thickness of the material, enabling the material piled up higher to move horizontally to fill the void positions, so that the material enters the extrusion area (i.e., below the pressing cylinder) with a generally uniform thickness. The V-shaped tip angles of the two scraping plates should be small enough (30°) to ensure that the material moves smoothly along the edge of the scraping plate.

[0029] In this embodiment, a scraping plate 21 is provided below the rear roller. The scraping plate 21 is attached to the outer surface of the filter mesh belt outside the rear roller to scrape off the manure residue attached to the surface of the rear roller. A plate seat 22 is embedded in the concrete base, and the lower part of the scraping plate 21 is connected to the plate seat 22.

[0030] In this embodiment, a concrete base is provided below the frame. A manure liquid diversion groove is provided on the upper side of the concrete base. A frame seat 23 is embedded in the concrete base, and the lower part of the frame is connected to the frame seat 23.

[0031] A working method of the above-mentioned bubble manure solid-liquid separator is as follows: The material (bubble manure) falls from the feed hopper onto the filter mesh belt, and the filter mesh belt drives the material to be conveyed backward. During the conveying process, the front scraping plate 6 and the rear scraping plate 7 level the material, and the manure liquid in the material passes through the filter mesh belt to complete the preliminary solid-liquid separation; then, the material enters below the pressing cylinder, and the pressing cylinder is used to extrude the material to achieve further solid-liquid separation; the downward pressure of the pressing cylinder is adjusted by increasing or decreasing the number of counterweight irons on the pressure frame to ensure that the humidity of the separated manure residue and the concentration of the manure liquid are both within a reasonable range, which is beneficial for subsequent treatment.

[0032] For any of the technical solutions disclosed by the present invention as described above, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is only the numerical values with obvious technical effects or representativeness among many implementable numerical values. Since there are too many numerical values to enumerate, the present invention only discloses some numerical values to illustrate the technical solutions of the present invention. Moreover, the listed numerical values should not constitute a limitation on the protection scope of the present invention.

[0033] If the present invention discloses or involves components or structural members that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (such as using bolts or screws for connection), or can also be understood as: a non-detachable fixed connection (such as riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (such as manufactured by an integral casting process) (except where it is obviously impossible to adopt the integral forming process).

[0034] In addition, for any of the technical solutions disclosed by the present invention as described above, the terms used to represent the positional relationship or shape, unless otherwise stated, include states or shapes that are approximate, similar, or close thereto.

[0035] Any component provided by the present invention can either be assembled from a plurality of separate components or be a single component manufactured by an integral forming process.

[0036] The above description is only a preferred embodiment of the present invention and does not impose other forms of limitations on the present invention. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A foam manure solid-liquid separator, characterized in that: It includes a frame and an annular filter belt, a material drop hopper is provided above the front end of the filter belt, and a pressure cylinder for squeezing materials is provided above the rear end of the filter belt; a pair of swing arms that can swing up and down are hinged on both sides of the rear end of the frame, and both ends of the pressure cylinder are rotatably connected to the swing arms on both sides, and the swing arms are provided with an adjustment mechanism for adjusting the downward pressure of the pressure cylinder.

2. The foam manure solid-liquid separator according to claim 1, characterized in that: The regulating mechanism comprises a pressure frame fixedly connected between the upper ends of the swing arms on both sides and used for placing the counterweight iron.

3. The foam manure solid-liquid separator according to claim 1, characterized in that: A limit block for limiting the downward swing angle of the swing arm is arranged at the rear end of the frame beside the hinged end of the swing arm.

4. The foam manure solid-liquid separator according to claim 1, characterized in that: The frame is provided with a rotatable front drum and a rear drum, the filter belt is sleeved on the front drum and the rear drum, the pressing drum is located obliquely above the rear drum and the bottom side is close to the outer surface of the filter belt outside the rear drum.

5. The foam feces solid-liquid separator according to claim 4, characterized in that: The rear drum is driven by a motor, and the motor uses a variable frequency speed regulation motor; one end of the rear drum is connected to the motor transmission, and the other end is provided with a first pulley; an inclined bracket fixed to the frame is provided next to the first pulley, and a coaxially arranged lower gear and a second pulley are provided on the inclined bracket, and the second pulley is connected to the first pulley through a belt transmission, and an upper gear meshing with the lower gear is provided at one end of the pressing cylinder facing the lower gear, and the upper and lower gears have the same diameter and module.

6. The foam manure solid-liquid separator according to claim 5, characterized in that: The diameter φ1 of the first pulley, the radius R1 of the rear drum, the diameter φ2 of the second pulley, and the radius R2 of the pressing cylinder satisfy the relationship: φ2 / φ1= R2 / R1.

7. The foam manure solid-liquid separator according to claim 1, characterized in that: A longitudinal support rail for supporting the upper layer of the filter mesh belt is provided below the upper layer of the filter mesh belt, and the longitudinal support rail is fixedly connected to the transverse support rod below it; and edge guard plates are provided on both sides of the upper layer of the filter mesh belt.

8. The foam manure solid-liquid separator according to claim 1, characterized in that: A front scraping plate and a rear scraping plate are arranged above the upper layer of the filter mesh belt. The front scraping plate and the rear scraping plate are both V-shaped and have an adjustable interval with the filter mesh belt. The tip of the front scraping plate faces forward, and the tip of the rear scraping plate faces backward.

9. The foam manure solid-liquid separator according to claim 1, characterized in that: A scraper plate is provided below the rear drum, and the scraper plate is close to the outer surface of the filter belt outside the rear drum.

10. A working method of the foam manure solid-liquid separator as claimed in claim 1, characterized in that: The material falls from the hopper onto the filter belt, and the filter belt drives the material to be transported backward. During the transportation process, the feces liquid in the material passes through the filter belt to complete the initial solid-liquid separation; then, the material enters the bottom of the pressing cylinder, and the pressing cylinder is used to squeeze the material to achieve further solid-liquid separation.

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