Solid-liquid separator with adjustable deslagging pressure

Abstract

The utility model relates to the technical field of livestock and poultry manure treatment, and discloses a solid-liquid separator with adjustable deslagging pressure, which comprises an auger, a deslagging component and a columnar screen, the auger is coaxially arranged in the screen in a matched manner, a slag outlet is formed at the output end of the screen, the deslagging component comprises a bracket, a screw rod, an internal thread cylinder and a spring, and the screw rod is arranged in the bracket. The two ends of the support are fixedly connected with a flange plate and a pressure regulating box respectively, the flange plate is in a circular ring shape, the flange plate and the screen are coaxially arranged and fixed to the slag outlet, a worm gear and a worm which are meshed with each other are arranged in the pressure regulating box, one end of a screw is coaxially and fixedly connected with the worm gear, and an inner threaded cylinder is in threaded connection with the screw and is in sliding connection with the support. One end of the spring is connected with the internal thread cylinder, the other end of the spring is connected with a slag discharging disc, and the spring is used for pressing the slag discharging disc to the end, away from the screen, of the flange plate; according to the solid-liquid separator with the adjustable deslagging pressure, the pressure of the slag outlet can be accurately adjusted before operation, and the solid-liquid separator is suitable for solid-liquid separation requirements of materials with different water contents.

Description

Technical Field

[0001] The utility model relates to the technical field of livestock and poultry manure treatment, in particular to a solid-liquid separator with adjustable slag discharge pressure. Background Art

[0002] Solid-liquid separators are mostly used to process livestock and poultry manure for reuse. Existing solid-liquid separators usually include an auger and a screen. The screen is mounted outside the auger. The rotation of the auger in the screen is used to compress the manure to achieve solid-liquid separation of the manure. The separated thin material is discharged from the side wall of the screen, and the dry material is discharged from the slag outlet at the end of the screen.

[0003] In traditional solid-liquid separators, the screens are mostly fixed, which easily causes material accumulation and blockage in the gap between the inner side of the screen and the edge of the auger. In response to this, we have developed an anti-blockage solid-liquid separator (see Chinese utility model patent, application number: CN202422090805.1). The screen is set as a rotatable structure, which can change the position of the internal flow channel by rotating the screen at a fixed time and carry the blockage to rotate, thereby greatly alleviating or avoiding blockage in the solid-liquid separator.

[0004] However, the slag outlet component in the solid-liquid separator is a fixed structure. After installation, the pressure of the slag outlet is determined. When used for the treatment of manure with different moisture contents, the slag outlet pressure cannot be flexibly adjusted according to actual conditions, which often leads to uneven slag discharge. In severe cases, blockage often occurs at the slag outlet. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a solid-liquid separator with adjustable slag outlet pressure, which can accurately adjust the slag outlet pressure before operation and is suitable for the solid-liquid separation needs of materials with different moisture contents.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A solid-liquid separator with adjustable slag discharge pressure, comprising a driving motor, an auger, a slag discharge component and a columnar screen, wherein the auger is coaxially adapted and arranged in the screen, the driving motor is used to drive the auger to rotate, a slag discharge port is formed in the screen at one end close to the axial output direction of the auger, the slag discharge component is arranged at the slag discharge port, the slag discharge component comprises a bracket, a screw, an internal threaded barrel and a spring, the two ends of the bracket are respectively fixedly connected with a flange and a pressure regulating box, the flange is annular, and the flange is coaxially arranged with the screen , the flange is fixedly arranged at the position of the slag outlet, a worm wheel and a worm are rotatably arranged in the pressure regulating box, the worm wheel is meshed with the worm, the worm wheel is coaxially arranged on the side of the flange away from the screen, one end of the screw is coaxially fixedly connected with the worm wheel, the internal threaded barrel is threadedly connected with the screw, the internal threaded barrel is slidably connected with the bracket, one end of the spring is connected with the internal threaded barrel, the other end of the spring is connected with the slag outlet plate, and the spring is used to press the slag outlet plate against the end of the flange away from the screen. Before operation, the solid-liquid separator with adjustable slag outlet pressure can drive the worm wheel and the screw to rotate by rotating the worm, and further drive the internal threaded barrel to slide back and forth, thereby adjusting the compression of the spring and accurately adjusting the pressure of the slag outlet to meet the solid-liquid separation requirements of materials with different moisture contents.

[0008] Specifically, it also includes a limiting cylinder, which is coaxially arranged with the screen, one end of the limiting cylinder is fixedly arranged in the slag outlet and rotatably connected to the end of the auger, the slag plate is slidably mounted on the limiting cylinder, and the spring is mounted on the outside of the limiting cylinder. The limiting cylinder can guide and limit the sliding of the slag plate and the expansion and contraction of the spring, so that the slag plate only slides in the axial direction and bears the pressure in the axial direction.

[0009] Furthermore, it also includes an indicating mechanism, which includes an indicating plate, a single-tooth gear and a gear. The indicating plate is fixedly connected to the voltage regulating box, and the single-tooth gear and the gear are arranged between the indicating plate and the voltage regulating box. The single-tooth gear is fixedly sleeved on the worm, and a short shaft is rotatably arranged on the indicating plate. The gear is fixedly sleeved on the short shaft, and the single-tooth gear is meshed with the gear. When the worm is rotated, the single-tooth gear rotates together, and the short shaft can be driven by the gear to rotate through a set angle every time the worm rotates one circle.

[0010] Specifically, the indicator plate is fixedly provided with a plurality of angle scales and a plurality of turn scales on one side away from the pressure regulating box, the plurality of angle scales are evenly distributed outside the worm, and the plurality of turn scales are evenly distributed outside the short axis; it also includes an angle pointer and a turn pointer, the angle pointer is arranged along the radial direction of the worm, one end of the angle pointer is fixedly connected to the worm, and the other end of the angle pointer is adapted to the angle scale, and the turn pointer is arranged along the radial direction of the short axis, one end of the turn pointer is fixedly connected to the short axis, and the other end of the turn pointer is adapted to the turn scale. When the worm is rotated to perform the pressure regulating operation, the total angle of the worm rotation can be intuitively observed by observing the indication of the angle pointer and the turn pointer, so as to accurately adjust the slag outlet pressure.

[0011] Specifically, a first clamp is sleeved on the worm, the angle pointer is fixedly set on the first clamp, a second clamp is sleeved on the short shaft, and the number of turns pointer is fixedly set on the second clamp. The clamp type connection structure can facilitate assembly and debugging.

[0012] Specifically, a pressure regulating hand wheel is provided on the fixed sleeve of the worm to facilitate the pressure regulating operation by rotating the worm.

[0013] The beneficial effects of the utility model are:

[0014] The solid-liquid separator with adjustable slag discharge pressure has improved the slag discharge component on the basis of the original equipment. The slag discharge component includes a bracket, a screw, an internal threaded barrel and a spring. The two ends of the bracket are respectively fixedly connected with a flange and a pressure regulating box. The flange is annular. The flange is coaxially arranged with the original screen and fixedly arranged at the slag discharge port position at the end of the screen. The pressure regulating box is provided with a meshing worm gear and a worm. One end of the screw is coaxially fixedly connected with the worm gear, the internal threaded barrel is threadedly connected with the screw, the internal threaded barrel is slidably connected with the bracket, one end of the spring is connected with the internal threaded barrel, and the other end of the spring is connected with a slag discharge plate. The elastic force of the spring presses the slag discharge plate tightly against the end of the flange away from the screen. Before operation, the worm gear and the screw can be driven to rotate by rotating the worm, and the internal threaded barrel can be further driven to slide back and forth, thereby adjusting the compression of the spring and realizing the pressure adjustment of the slag discharge port to meet the solid-liquid separation requirements of materials with different moisture contents. An indicating mechanism is provided, and the total angle of rotation of the worm can be visually observed during the pressure adjustment process, so as to facilitate accurate adjustment of the slag discharge port pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a solid-liquid separator with adjustable slag discharge pressure according to the utility model;

[0016] Figure 2 This is a structural schematic diagram of a slag discharge component in a solid-liquid separator with adjustable slag discharge pressure according to the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the interior of a pressure regulating box and an indicating mechanism in a solid-liquid separator with adjustable slag discharge pressure according to the utility model;

[0018] Figure 4 It is an enlarged structural schematic diagram of an indicating mechanism in a solid-liquid separator with adjustable slag discharge pressure according to the utility model;

[0019] In the figure, 1-drive motor, 2-bracket, 3-screw, 4-internal threaded cylinder, 5-spring, 6-flange, 7-slag plate, 8-pressure regulating handwheel, 9-limit cylinder, 10-pressure regulating box, 11-worm gear, 12-worm, 13-indicator plate, 14-single-tooth gear, 15-gear, 16-short shaft, 17-angle scale line, 18-angle pointer, 19-turn scale line, 20-turn pointer, 21-first clamp, 22-second clamp. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0021] like Figure 1 As shown, a solid-liquid separator with adjustable slag discharge pressure is an improved model based on the existing equipment. The existing equipment includes a drive motor 1, an auger, a slag discharge component and a columnar screen. The auger is coaxially adapted and arranged in the screen. The drive motor 1 is used to drive the auger to rotate. The end of the screen close to the axial output direction of the auger forms a slag discharge port, and the slag discharge component is arranged at the slag discharge port. As the auger continues to rotate, the material in the screen can be conveyed toward the slag discharge component. During the conveying process, an axial extrusion force is formed between the spiral blades of the auger and the slag discharge component to achieve solid-liquid separation of the material. The separated thin material is discharged from the side wall of the screen, and the dry material is discharged from the slag discharge port at the end of the screen. The internal structure of the existing equipment can be found in a blockage-resistant solid-liquid separator disclosed in the Chinese utility model patent (application number: CN202422090805.1), which will not be described in detail here.

[0022] like Figures 1 to 4As shown, the slag discharge assembly is improved on the basis of the existing equipment, and the slag discharge assembly includes a bracket 2, a screw 3, an internal threaded barrel 4 and a spring 5, and the two ends of the bracket 2 are respectively fixedly connected with a flange 6 and a pressure regulating box 10. The flange 6 is annular, and the flange 6 is coaxially arranged with the screen, and the flange 6 is fixedly arranged at the slag discharge port (in the specific implementation, the solid-liquid separator also includes a casing, the screen is arranged in the casing, and the flange 6 is fixedly connected to the end of the casing, and the center hole of the flange 6 is aligned with the slag discharge port so that the slag discharge port is connected with the outside of the casing). A worm wheel 11 and a worm 12 are rotatably arranged in the pressure regulating box 10, and the worm wheel 11 is meshed with the worm 12. The worm wheel 11 is coaxially arranged on the side of the flange 6 away from the screen. One end of the screw 3 is coaxially fixedly connected to the worm wheel 11, the internal threaded barrel 4 is threadedly connected to the screw 3, the internal threaded barrel 4 is slidingly connected to the bracket 2, one end of the spring 5 is connected to the internal threaded barrel 4, and the other end of the spring 5 is connected to the slag plate 7. After the spring 5 is compressed, its elastic force is used to press the slag plate 7 to the end of the flange 6 away from the screen.

[0023] When the solid-liquid separator is in use, the separated dry material needs to be pushed open by the axial force applied by the auger to discharge the slag plate 7 to the outside of the slag outlet. Through the above design, the worm 12 is rotated before the operation, which can drive the worm wheel 11 and the screw 3 to rotate; the screw 3, the internal threaded barrel 4, and the bracket 2 form a screw nut mechanism, which can drive the internal threaded barrel 4 to move forward and backward when the screw 3 rotates, thereby adjusting the distance between the internal threaded barrel 4 and the flange 6, and then adjusting the compression deformation of the spring 5. According to Hooke's law, the slag outlet pressure (the pressing force of the spring 5 on the slag plate 7) of the auger to push the material axially and the compression deformation of the spring 5 are linearly related. Since there is a certain transmission relationship between the worm 12 and the worm wheel 11 and between the internal threaded barrel 4 and the screw 3, the size of the slag outlet pressure is linearly related to the rotation angle of the worm 12. It can be seen that before operation, the solid-liquid separator with adjustable slag discharge pressure can accurately adjust the slag discharge port pressure by rotating the worm 12 to meet the solid-liquid separation requirements of materials with different moisture contents. A worm gear mechanism is formed between the worm 12 and the worm wheel 11, and a screw nut mechanism is formed between the screw 3, the internal threaded barrel 4, and the bracket 2, all of which have self-locking characteristics, and can effectively maintain the accuracy of the positions of various components when the worm 12 stops rotating.

[0024] In specific implementation, a pressure regulating hand wheel 8 is fixedly sleeved at one end of the worm 12, and the pressure regulating hand wheel 8 can be conveniently held to rotate the worm 12 for adjustment; the pressure regulating hand wheel 8 has a relatively large outer diameter to facilitate more accurate operation when adjusting the rotation angle of the worm 12.

[0025] Specifically, it also includes a limiting cylinder 9, which is fixedly connected to the casing and is coaxially arranged with the screen. One end of the limiting cylinder 9 is arranged in the slag outlet, and is rotatably connected to the end of the auger at this end. The limiting cylinder 9 can form a stable support for the end of the auger; the other end of the limiting cylinder 9 extends out of the casing, and the slag plate 7 can be slidably sleeved on the limiting cylinder 9, and the spring 5 is sleeved on the outside of the limiting cylinder 9. The limiting cylinder 9 can guide the slag plate 7 and the spring 5 to keep the slag plate 7 sliding only in the axial direction and under pressure in the axial direction. It should be understood that the length of the limiting cylinder 9 is only used to limit the sliding process of the slag plate 7 after it is pushed open, and the end of the limiting cylinder 9 extending out of the casing abuts against the end of the screw 3 or leaves a gap to avoid interference with the forward sliding of the internal threaded cylinder 4.

[0026] Further, it also includes indicating agencies, such as Figure 3 , Figure 4 As shown, the indicating mechanism includes an indicating plate 13, a single-tooth gear 14 and a gear 15. The indicating plate 13 is fixedly connected to the pressure regulating box 10. The single-tooth gear 14 and the gear 15 are arranged between the indicating plate 13 and the pressure regulating box 10. The single-tooth gear 14 is fixedly sleeved on the worm 12. A short shaft 16 is rotatably arranged on the indicating plate 13. The gear 15 is fixedly sleeved on the short shaft 16. The single-tooth gear 14 is meshed with the gear 15. When the worm 12 is rotated, the single-tooth gear 14 can be driven to rotate together. Every time the worm 12 rotates one circle, the single-tooth gear 14 can turn the gear 15 to drive the short shaft 16 to rotate a set angle. According to the above, the magnitude of the slag outlet pressure is linearly related to the rotation angle of the worm 12. Through the above design, the total rotation angle of the worm 12 can be directly observed by observing the phase angle of the short shaft 16 and the phase angle of the worm 12 during the pressure adjustment process, so as to accurately adjust the slag outlet pressure.

[0027] Specifically, Figure 4 As shown, the indicator plate 13 is fixedly provided with a plurality of angle scales 17 and a plurality of number of turns scales 19 on one side away from the voltage regulating box 10. The plurality of angle scales 17 are evenly distributed outside the worm 12, and the plurality of number of turns scales 19 are evenly distributed outside the short shaft 16. The indicator plate 13 also includes an angle pointer 18 and a number of turns pointer 20. The angle pointer 18 is arranged along the radial direction of the worm 12, one end of the angle pointer 18 is fixedly connected to the worm 12, and the other end of the angle pointer 18 is matched with the angle scales 17. When the worm 12 rotates, the angle pointer 18 can intuitively indicate the phase angle of the rotation of the worm 12; the number of turns pointer 20 is arranged along the radial direction of the short shaft 16, one end of the number of turns pointer 20 is fixedly connected to the short shaft 16, and the other end of the number of turns pointer 20 is matched with the number of turns scales 19. When the worm 12 rotates, the number of turns pointer 20 can intuitively indicate the phase angle of the rotation of the short shaft 16, that is, the number of turns of the worm 12.

[0028] In specific implementation, when assembling the gear 15, the end face of the gear 15 contacts the end face of the indicator plate 13 or a friction pad is installed between the gear 15 and the indicator plate 13 to generate a certain friction resistance on the gear 15 to avoid inaccurate indication of the number of turns due to movement inertia and other reasons during adjustment.

[0029] Specifically, a first clamp 21 is sleeved on the worm 12, and the angle pointer 18 is fixedly arranged on the first clamp 21; a second clamp 22 is sleeved on the short shaft 16, and the number of turns pointer 20 is fixedly arranged on the second clamp 22. With this clamp connection form, the first clamp 21 and the worm 12 can be fixedly connected or the second clamp 22 and the short shaft 16 can be fixedly connected by tightening the corresponding clamp screws. When the elastic coefficient of the spring 5 changes after long-term use, the clamp screws can be loosened to adjust the initial position of the indication.

[0030] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A solid-liquid separator with adjustable slag discharge pressure, comprising a drive motor, an auger, a slag discharge assembly and a columnar screen, wherein the auger is coaxially adapted to be arranged in the screen, the drive motor is used to drive the auger to rotate, a slag discharge port is formed in the screen at one end close to the axial output direction of the auger, and the slag discharge assembly is arranged at the slag discharge port, characterized in that: The slag discharge assembly includes a bracket, a screw, an internal threaded barrel and a spring. The two ends of the bracket are respectively fixedly connected with a flange and a pressure regulating box. The flange is annular, the flange is coaxially arranged with the screen, and the flange is fixedly arranged at the slag outlet. A worm wheel and a worm are rotatably arranged in the pressure regulating box, the worm wheel is meshed with the worm, the worm wheel is coaxially arranged on the side of the flange away from the screen, one end of the screw is coaxially fixedly connected to the worm wheel, the internal threaded barrel is threadedly connected to the screw, the internal threaded barrel is slidably connected to the bracket, one end of the spring is connected to the internal threaded barrel, the other end of the spring is connected to a slag discharge plate, and the spring is used to press the slag discharge plate tightly at the end of the flange away from the screen.

2. A solid-liquid separator with adjustable slag discharge pressure according to claim 1, characterized in that: It also includes a limiting cylinder, which is coaxially arranged with the screen, one end of which is fixedly arranged in the slag outlet and rotatably connected to the end of the auger, the slag outlet plate is slidably mounted on the limiting cylinder, and the spring is mounted on the outside of the limiting cylinder.

3. The solid-liquid separator with adjustable slag discharge pressure according to claim 1, characterized in that: It also includes an indicating mechanism, which includes an indicating plate, a single-tooth gear and a gear. The indicating plate is fixedly connected to the pressure regulating box, the single-tooth gear and the gear are arranged between the indicating plate and the pressure regulating box, the single-tooth gear is fixedly sleeved on the worm, a short shaft is rotatably arranged on the indicating plate, the gear is fixedly sleeved on the short shaft, and the single-tooth gear is meshed with the gear.

4. The solid-liquid separator with adjustable slag discharge pressure according to claim 3, characterized in that: A plurality of angle scale lines and a plurality of turn scale lines are fixedly arranged on one side of the indicator plate away from the voltage regulating box, wherein the circumferences of the plurality of angle scale lines are uniformly distributed outside the worm, and the circumferences of the plurality of turn scale lines are uniformly distributed outside the short shaft; It also includes an angle pointer and a turn pointer, the angle pointer is arranged along the radial direction of the worm, one end of the angle pointer is fixedly connected to the worm, and the other end of the angle pointer is adapted to the angle scale line, and the turn pointer is arranged along the radial direction of the short axis, one end of the turn pointer is fixedly connected to the short axis, and the other end of the turn pointer is adapted to the turn scale line.

5. The solid-liquid separator with adjustable slag discharge pressure according to claim 4, characterized in that: The worm is sleeved with a first hoop, the angle pointer is fixedly arranged on the first hoop, the short shaft is sleeved with a second hoop, and the turn pointer is fixedly arranged on the second hoop.

6. A solid-liquid separator with adjustable slag discharge pressure according to any one of claims 1 to 5, characterized in that: A pressure regulating hand wheel is arranged on the fixed sleeve of the worm.

Images