CN214735283U - Pasture contains husky liquid dung solid-liquid separation system - Google Patents

Abstract

The utility model relates to a pasture contains husky liquid dung solid-liquid separation system, the system includes: the device comprises a slope sedimentation tank, a chain plate lifter and a double-roller extrusion separator, wherein the bottom surface of the slope sedimentation tank is an inclined surface, and the lowest end of the inclined surface is provided with a feces collection tank; the pair roller extrusion separator is arranged at the top of the slope sedimentation tank and is positioned at one side close to the dung and sewage collecting tank; the feed inlet of the chain plate hoister is positioned in the feces collecting tank, and the discharge outlet of the chain plate hoister is positioned above the feed inlet of the pair-roller extruding separator. The utility model has the advantages that: the slope sedimentation tank is adopted, so that the liquidity of the excrement at the bottom of the tank is enhanced, the excrement is favorably gathered to an excrement collecting tank, and the collection and lifting of a lifter are facilitated; the chain plate lifter is used for lifting the excrement, so that the chain plate cannot be abraded; the double-roller extruding separator is adopted, so that solid matters in the excrement and sewage can be fully extruded, the abrasion degree of fine sand in the excrement and sewage to the extruding roller is low, and the service life of the extruding roller is long.

Description

Pasture contains husky liquid dung solid-liquid separation system

Technical Field

The utility model relates to a dirty processing technology field of excrement particularly, relates to a pasture contains husky liquid dung solid-liquid separation system.

Background

The fine sand can be used for replacing cow dung after solid-liquid separation to serve as bedding materials for the cattle farm, the sand used by the bed is dry sand in the desert, is free of organic matters and soil, is extremely soft, can effectively inhibit the propagation and growth of microorganisms, is not easy to breed bacteria, is beneficial to the health of cattle, and is low in use cost. However, fine sand is used as bedding for the bed of the cowshed, and inevitably enters the excrement collecting pool, so that when the excrement containing the fine sand is treated, a sewage pump and excrement treatment equipment are damaged.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a processing system who is applicable to and handles husky filth that stand wear and tear.

In order to achieve the above object, the utility model provides a pasture contains husky liquid dung solid-liquid separation system, the system includes: a slope sedimentation tank, a chain plate lifter and a double-roller extrusion separator, wherein,

the bottom surface of the slope sedimentation tank is an inclined surface, and the lowest end of the inclined surface is provided with a feces collecting tank;

the pair roller squeezing separator is arranged at the top of the slope sedimentation tank and is positioned at one side close to the manure collecting tank;

the feed inlet of the chain plate hoister is positioned in the feces collecting tank, and the discharge outlet of the chain plate hoister is positioned above the feed inlet of the pair-roller extruding separator.

As a further improvement, the bottom surface of the dirty collecting vat of excrement is the inclined plane, the bottom incline direction of the dirty collecting vat of excrement with the incline direction on the ground of slope sedimentation tank is opposite, the feed inlet of link joint lifting machine is located the bottommost of the dirty collecting vat of excrement.

As a further improvement of the utility model, the double-roller extrusion separator comprises an extrusion bin and a sewage collecting box which are formed by the enclosure, and a double-roller extrusion device which is arranged in the extrusion bin; wherein the content of the first and second substances,

a feed port is formed in one end of the extrusion bin, a discharge port is formed in the other end of the extrusion bin, the double-roll type extrusion device is arranged in a channel between the feed port and the discharge port, and the bottom surface of the extrusion bin is obliquely arranged;

the sewage collecting box is positioned below the double-roller type extrusion device, the top of the sewage collecting box is connected with the bottom of the extrusion bin, and the bottom of the sewage collecting box is provided with a sewage outlet.

As the utility model discloses further improve, to roll-type extrusion device includes at least a set of extrusion roller set and drive the actuating mechanism of extrusion roller set, the extrusion roller set includes parallel arrangement's last squeeze roll and lower squeeze roll, go up the squeeze roll with the squeeze roll is in down the bottom surface department in extrusion storehouse forms the extrusion passageway, just be equipped with the sieve mesh on the roll surface of lower squeeze roll.

As the utility model discloses further improve, the both ends of squeeze roll are fixed respectively down on the bulkhead in extrusion storehouse, go up the both ends of squeeze roll and connect the fixed arm respectively, the one end of fixed arm is connected in the pivot of going up the squeeze roll, the rotatable fixing of the other end of fixed arm is in on the bulkhead in extrusion storehouse.

As the utility model discloses further improve, the both ends of going up the squeeze roll are equipped with respectively and compress tightly the gasbag, compress tightly the gasbag compress tightly the direction with go up the squeeze roll with the interaxial distance's of squeeze roll connecting wire is unanimous down, it is used for adjusting to compress tightly the gasbag go up the squeeze roll with distance between the squeeze roll down.

As the utility model discloses further improve, actuating mechanism includes speed reducer and driving motor, the extrusion roller set is through one speed reducer and one driving motor drives, the speed reducer is the hard tooth face cycloid speed reducer, driving motor is inverter motor.

As the utility model discloses the further improvement, the extrusion roller set has two sets ofly, including first extrusion roller set and second extrusion roller set, first extrusion roller set with second extrusion roller set installs respectively in proper order in the passageway.

As the utility model discloses further improve, it is stainless steel squeeze roll to go up the squeeze roll, the squeeze roll is steel skeleton outsourcing polyurethane rubber roll down.

As the utility model discloses further improve, the top of slope sedimentation tank bottom surface sets up bath device, bath device's delivery port is higher than the bottom surface and the opening orientation of slope sedimentation tank the dirty collecting vat of excrement.

As the utility model discloses further improve, the bottom surface of slope sedimentation tank is 30 ~ 45 degrees with the contained angle of horizontal plane.

As a further improvement, the utility model is characterized in that the system further comprises a sewage treatment device, the sewage treatment device is connected with the drain outlet of the pair roller extrusion separator, and is used for right the sewage extruded and separated by the pair roller extrusion separator is treated.

As the utility model discloses further improve, the one end that compresses tightly the gasbag is connected go up squeeze roll's pivot tip, the other end that compresses tightly the gasbag is fixed on the baffle, the baffle is fixed on the bulkhead in extrusion storehouse.

As a further improvement, the feed inlet is provided with a feed hopper, and the opening of the feed hopper is upward.

As the utility model discloses further improve, the aperture of sieve mesh is 0.3 ~ 1.5 mm.

As a further improvement, the bottom surface of the extrusion bin is provided with sieve meshes.

As a further improvement, the system also comprises a septic tank, and the septic tank is communicated with the discharge hole of the pair roller extruding-separating machine.

The utility model has the advantages that: the slope sedimentation tank is adopted, so that the liquidity of the excrement at the bottom of the tank is enhanced, and particularly, fine sand can be gathered in an excrement collecting tank at the bottom of the slope, so that the fine sand is convenient to collect and lift by a lifter; the sewage is lifted by using the chain plate lifter, and the fine sand in the excrement basically does not move relative to the chain plate mechanism, so that the chain plate which runs at a low speed cannot be greatly abraded; the double-roller extruding separator is adopted, so that solid matters in the excrement and sewage can be fully extruded, the abrasion degree of fine sand in the excrement and sewage to the extruding roller is low, and the service life of the extruding roller is long. The water content of solid matters in the extruded manure is low, and the solid matters can be used as primary raw materials of commercial fertilizers. The sewage is subjected to solid-liquid separation in a double-roller extrusion mode, and flows out of the sieve pores arranged on the roller surface, so that the solid-liquid separation effect is good; the extrusion force between the upper and lower extrusion rollers can be adjusted, and can be adjusted according to the change of the concentration of solid matters in the sewage; the hardness of the upper and lower squeeze rollers is different, so that the solid in the sewage can be squeezed more fully; and the squeeze roll is wear-resistant and has long service life.

Drawings

FIG. 1 is a schematic structural view of a sand-containing liquid dung solid-liquid separation system of the utility model;

FIG. 2 is a schematic view of a slope sedimentation tank of a sand-containing liquid dung solid-liquid separation system of the utility model;

FIG. 3 is a schematic view of a chain plate elevator of a sand-containing liquid dung solid-liquid separation system of the utility model;

FIG. 4 is a schematic structural view of a pair roller squeezing separator of the sand-containing liquid dung solid-liquid separation system of the utility model;

FIG. 5 is a view taken along line A of FIG. 4;

FIG. 6 is a left side view of the roll-to-roll pinch separator;

FIG. 7 is a rear view of the roll-to-roll pinch separator;

FIG. 8 is a schematic view of the sewage treatment process of the sand-containing liquid dung solid-liquid separation system of the utility model.

In the figure: 1. extruding the bin; 2. a feed inlet; 3. a discharge port; 4. the bottom surface of the extrusion bin; 5. a feed hopper; 6. an upper squeeze roll; 7. a lower squeeze roll; 8. a fixed arm; 9. a pressing device; 10. a sewage collecting tank; 11. a sewage draining outlet; 12. a drive mechanism; 13. a speed reducer; 14. a drive motor; 15. sewage containing sand; 20. a double-roller extrusion separator; 21. a slope sedimentation tank; 22. a feces collecting tank; 23. a chain plate hoister.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

It should be noted that the directions or positional relationships indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in the present invention are only for convenience of description and simplification of description based on the directions or positional relationships shown in the drawings, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides a pasture contain husky liquid dung solid-liquid separation system, as shown in fig. 1-2, this system includes: a slope sedimentation tank 21, a chain plate lifter 23 and a pair roller extrusion separator 20, wherein,

the bottom surface of the slope sedimentation tank 21 is an inclined surface, and the lowest end of the inclined surface is provided with a feces collection tank 22; the bottom surface of the slope sedimentation tank 21 is smooth, which is beneficial to transferring the excrement to the excrement collecting tank 22. For example, the bottom of the slope settling tank 21 is subjected to a smoothing treatment, the smoothing treatment comprises tile laying, cement surface smoothing or polishing, self-leveling or flat paint laying, PVC or stainless steel tank laying, and the bottom smoothing surface of the slope settling tank 21 can be selected from one of a tile surface, a cement surface smoothing or polishing, a self-leveling or flat paint surface, a PVC surface and a stainless steel surface.

The double-roller extrusion separator 20 is arranged at the top of the slope sedimentation tank 21 and is positioned at one side close to the dung and sewage collecting tank 22; the feed inlet of the chain plate elevator 23 is positioned in the feces collecting groove 22, and the discharge outlet of the chain plate elevator 23 is positioned above the feed inlet of the double-roller extrusion separator 20. The chain plate lifter 23 transfers the feces in the feces collecting tank 22 to the double-roller extruding separator 20 for solid-liquid separation treatment.

In order to facilitate the chain elevator 23 to transport the manure, the bottom surface of the manure collection tank 22 is, for example, an inclined surface, the bottom of the manure collection tank 22 is inclined in the opposite direction to the ground of the slope sedimentation tank 21, and the feed inlet of the chain elevator 23 is located at the bottom end of the manure collection tank 22. The slope sedimentation tank 21 gathers the excrement to the excrement collecting tank 22, the bottom surface of the excrement collecting tank 22 is an inclined surface, the excrement is gathered to the bottommost end of the excrement collecting tank 22, and the chain plate elevator 23 lifts the excrement from the bottommost end of the excrement collecting tank 22 to the roller extruding and separating machine 20 for processing.

In an alternative embodiment, the double-roller extrusion separator 20 comprises a machine body, the machine body comprises an extrusion bin 1 and a sewage collecting box 10 which are formed by enclosure surrounding, and a double-roller extrusion device arranged in the extrusion bin; wherein, the one end in extrusion storehouse 1 is equipped with feed inlet 2, and the other end in extrusion storehouse 1 is equipped with discharge gate 3, to roll-type extrusion device setting in feed inlet 2 with in the passageway between discharge gate 3, 4 slopes settings in the bottom surface in extrusion storehouse. The sewage collecting box 10 is positioned below the double-roller type extrusion device, the top of the sewage collecting box 10 is connected with the bottom of the extrusion bin 1, and the bottom of the sewage collecting box 10 is provided with a sewage outlet 11. The sewage collecting box 10 and the extrusion bin 1 can be of an integrated structure and are divided into an upper part and a lower part by a partition plate, the upper part is the extrusion bin 1, the lower part is the sewage collecting box 10, and the partition plate is the bottom surface 4 of the extrusion bin.

In an alternative embodiment, the double-roller extruding separator 20 comprises a machine body, wherein the machine body comprises an extruding bin 1 and a sewage collecting box 10 which are formed by being surrounded by a shell, and a double-roller extruding device which is arranged in the extruding bin 1; wherein the content of the first and second substances,

one end of the extrusion bin 1 is provided with a feed inlet 2, the other end of the extrusion bin 1 is provided with a discharge outlet 3, and the double-roll extrusion device is arranged in a channel between the feed inlet 2 and the discharge outlet 3, and the bottom surface 4 of the extrusion bin is obliquely arranged.

To roll-type extrusion device including extrusion roller set and drive extrusion roller set's actuating mechanism 12, extrusion roller set parallel arrangement includes squeeze roll 6 and squeeze roll 7 down, squeeze roll 7 is fixed to be set up in the bottom surface below of extrusion storehouse 1 down, the bottom surface in extrusion storehouse 1 is equipped with the opening, the roll surface of squeeze roll 7 is followed the opening part and is salient down, go up squeeze roll 6 and install on squeeze roll 7 down, it forms the extrusion passageway to go up between squeeze roll 6 and the squeeze roll 7 down, be equipped with the sieve mesh on the roll surface of squeeze roll 7 down, the aperture of sieve mesh is 0.3 ~ 1.5mm for example, do benefit to the sewage output after the extrusion. The two ends of the extrusion roller group are rotatably fixed on the bin wall of the extrusion bin 1, the driving mechanism 12 is arranged outside the extrusion bin 1, the output shaft of the driving mechanism 12 is mechanically connected with the rotating shaft of the extrusion roller, the extrusion roller is driven to rotate through the driving mechanism 12, each group of extrusion roller group can be driven by one driving mechanism 12 respectively, and a plurality of groups of extrusion roller groups can be driven by one driving mechanism 12 simultaneously to rotate. The rotation directions of the upper extrusion roller 6 and the lower extrusion roller 7 are both from the feed inlet 2 to the discharge outlet 3, and the solid is extruded and driven by the extrusion roller group to move to the discharge outlet 3.

The sewage collecting box 10 is positioned below the double-roller type extrusion device, the top of the sewage collecting box 10 is connected with the bottom of the extrusion bin 1, and the bottom of the sewage collecting box 10 is provided with a sewage outlet 11. The sewage collecting box 10 and the extrusion bin 1 can be of an integrated structure and are divided into an upper part and a lower part by a partition plate, the upper part is the extrusion bin 1, the lower part is the sewage collecting box 10, and the partition plate is the bottom surface 4 of the extrusion bin.

The sewage containing solid matters flows in from the feed inlet 2 and automatically flows into an extrusion channel of the double-roll extrusion device, the solid matters and water in the sewage are separated by the extrusion action of the upper extrusion roll 6 and the lower extrusion roll 7, the sewage flows into the sewage collecting box 10 from a sieve pore of the lower extrusion roll 7, the solid matters after solid-liquid separation flow out from the discharge port 3 under the drive of the extrusion rolls and the action of the inclined bottom surface and enter a special collecting device or further processing, and the sewage of the sewage collecting box 10 is discharged from the sewage discharge port 11 arranged at the bottom of the sewage collecting box 10 and then is subjected to subsequent processing.

In an alternative embodiment of the paired-roller extruding separator, two ends of a rotating shaft of the lower extruding roller 7 are respectively and rotatably fixed on the bin wall of the extruding bin 1, two ends of a rotating shaft of the upper extruding roller 6 are respectively connected with a fixing arm 8, two ends of a rotating shaft of the upper extruding roller 6 are respectively and rotatably fixed at one end of the fixing arm 8, and the other end of the fixing arm 8 is rotatably fixed on the bin wall of the extruding bin 1. Through the fixed arm 8 will go up squeeze roll 6 and support, the bulkhead junction of fixed arm 8 and extrusion storehouse 1 sets up torsion spring for example, effect through torsion spring can make fixed arm 8 swing in the certain limit, thereby make the interval of going up squeeze roll 6 and squeeze roll 7 down can small adjustment, avoid the solid form of big granule in the sewage to cause wearing and tearing to the squeeze roll, compare in the fixed mode of last squeeze roll 6 and squeeze roll 7 interval down, wobbling squeeze roll is more difficult for wearing and tearing, long service life, and the extrusion effect is better, can be abundant extrude the solid matter in the sewage.

In an alternative embodiment of the twin-roll extrusion separator, the upper squeeze roll 6 is provided at both ends with a respective hold-down device 9, the hold-down direction of the hold-down device 9 corresponding to the line connecting the axial distances of the upper and lower squeeze rolls, for example perpendicular to the bottom 4 of the extrusion chamber, and the hold-down device 9 is used to adjust the distance between the upper and lower squeeze rolls 6, 7. The pressing device 9 is, for example, a pressing airbag, one end of the pressing airbag is connected to the end portion of the rotating shaft of the upper squeeze roller 6, the other end of the pressing airbag is fixed on the baffle, the baffle is fixed on the outer wall of the squeezing bin 1, the stretching direction of the pressing airbag is consistent with the connecting line of the axial distance between the upper squeeze roller 6 and the lower squeeze roller 7, the degree of squeezing between the upper squeeze roller 6 and the lower squeeze roller 7 can be correspondingly adjusted according to the change of the concentration of the solid matters in the sewage, and the solid matters in the sewage are squeezed more sufficiently. The pressing device 9 can also be a telescopic mechanism, such as a hydraulic telescopic rod, which can support the squeeze rolls on the one hand and can adjust the distance between the upper squeeze roll 6 and the lower squeeze roll 7 on the other hand.

The driving mechanism 12 comprises a speed reducer 13 and a driving motor 14, the extrusion roller set is driven by the speed reducer 13 and the driving motor 14, the speed reducer 13 is a hard tooth surface cycloid speed reducer, the driving motor 14 is a variable frequency motor, an output shaft of the variable frequency motor is connected with the hard tooth surface cycloid speed reducer, the extrusion roller set is driven to rotate by the hard tooth surface cycloid speed reducer, low-speed and stable power is provided, and the rotation speed of the extrusion roller set can be adjusted by the variable frequency motor.

In an alternative embodiment of the double-roller extruding and separating machine, the double-roller extruding and separating machine 20 comprises an extruding bin 1, a sewage collecting box 10 and a double-roller extruding device arranged in the extruding bin 1; wherein the content of the first and second substances,

one end of the extrusion bin 1 is provided with a feed inlet 2, the other end of the extrusion bin 1 is provided with a discharge outlet 3, and the double-roll extrusion device is arranged in a channel between the feed inlet 2 and the discharge outlet 3, and the bottom surface 4 of the extrusion bin is obliquely arranged.

The double-roller type extrusion device comprises an extrusion roller set and a driving mechanism for driving the extrusion roller set, the extrusion roller set is provided with two groups, the extrusion roller set comprises a first extrusion roller set and a second extrusion roller set, the first extrusion roller set and the second extrusion roller set are sequentially arranged in a channel respectively, and the upper extrusion rollers and the lower extrusion rollers of the first extrusion roller set and the second extrusion roller set are arranged on the upper side and the lower side of the bottom surface of the extrusion bin respectively. The double-roller type extrusion device comprises two groups of extrusion roller sets, a driving mechanism 12 and a pressing device 9, wherein the first extrusion roller set and the second extrusion roller set can be respectively driven by one driving motor 12, and each extrusion roller can also be driven by one driving motor 12.

First squeeze roll group and second squeeze roll group all include parallel arrangement's last squeeze roll 6 and squeeze roll 7 down, and squeeze roll 7 is fixed to be set up in 4 below in the bottom surface in extrusion storehouse down, and the bottom surface 4 in extrusion storehouse is equipped with the opening, and the roll surface of squeeze roll 7 is followed the opening part and is salient down, goes up squeeze roll 6 and installs on squeeze roll 7 down, goes up squeeze roll 6 and forms the extrusion passageway down between squeeze roll 7, is equipped with the sieve mesh on the roll surface of squeeze roll 7 down. The both ends of the pivot of lower squeeze roll 7 are rotatable respectively and are fixed on the bulkhead of extrusion storehouse 1, and the both ends of the pivot of last squeeze roll 6 are connected fixed arm 8 respectively, and the both ends of the pivot of last squeeze roll 6 are rotatable respectively and are fixed in the one end of fixed arm 8, and the other end of fixed arm 8 is rotatable fixes on the bulkhead of extrusion storehouse 1. The two ends of the upper squeeze roll 6 are respectively provided with a pressing air bag, the pressing direction of the pressing air bags is consistent with the connecting line of the axial distance between the upper squeeze roll 6 and the lower squeeze roll 7, and the distance between the upper squeeze roll 6 and the lower squeeze roll 7 is adjusted through the pressing air bags. The driving mechanism 12 comprises a speed reducer 13 and a driving motor 14, the extrusion roller group is driven by the speed reducer 13 and the driving motor 14, the speed reducer 14 is a hard tooth surface cycloidal speed reducer, the driving motor 14 is a variable frequency motor, an output shaft of the variable frequency motor is connected with the hard tooth surface cycloidal speed reducer, and the extrusion roller group is driven to rotate by the hard tooth surface cycloidal speed reducer. The sewage collecting box 10 is positioned below the double-roller type extrusion device, the top of the sewage collecting box 10 is connected with the bottom of the extrusion bin 1, and the bottom of the sewage collecting box 10 is provided with a sewage outlet 11.

The solid in the sewage is extruded through the two groups of extrusion roller sets, the rotating speed, the distance and the extrusion force degree of the upper and lower extrusion rollers of the first extrusion roller set can be independently adjusted, the rotating speed, the distance and the extrusion force degree of the upper and lower extrusion rollers of the second extrusion roller set can be independently adjusted, and the rotating speed or the extrusion force degree of the first extrusion roller set and the rotating speed or the extrusion force degree of the second extrusion roller set can be the same or different. For example, if the first compression roller group is disposed on the side close to the throat 2 and the second compression roller group is disposed on the side close to the throat 3, the compression force degree of the second compression roller group may be set to be greater than that of the first compression roller group. The solid in the effectual sewage extrudees for the solid moisture content of output is lower.

In an alternative embodiment of the twin-roll press-separator, the upper press roll 6 is a soft-sided press roll and the lower press roll 7 is a hard-sided press roll. For example, the upper squeeze roller 6 is a steel skeleton rubber-lined roller, the rubber lining is polyurethane for example, and the polyurethane is wrapped on the roller surface of the stainless steel roller to form a soft-surface squeeze roller; the lower squeeze roll 7 is, for example, a stainless steel roll which is a hard-surface squeeze roll, and sieve pores with the pore diameter of 0.3-1.5 mm are uniformly distributed on the roll surface of the stainless steel roll. Through the configuration of soft face squeeze roll and hard face squeeze roll, can be more abundant extrude the solid matter in the excrement sewage, reduce the wearing and tearing of solid matter to the squeeze roll simultaneously, prolong the life of squeeze roll.

In an alternative embodiment, the system further comprises a sewage treatment device, which is connected with the sewage discharge port 11 of the double-roller extrusion separator and is used for treating the sewage squeezed and separated by the double-roller extrusion separator 20.

An optional implementation mode is that in northwest China, fine sand is abundant, so that the fine sand is used for replacing cow dung obtained after solid-liquid separation in a pasture as cow bed padding in many places. In the daily activities of cattle, as a small amount of fine sand is inevitably taken into a cow house dung cleaning channel and transferred to a dung collection tank through a one-stage or multi-stage dung cleaning system, sewage in the collection tank is pumped to a spiral extrusion separator through a sewage pump, and in the link, the sand-containing dung sewage has less abrasion to the dung cleaning system. The sewage in the collecting tank is pumped to a spiral extrusion separator by a sewage pump. In this link, fine sand in the sewage greatly damages the impeller and the pump shell of the sewage pump because the blades of the water pump rotate at a high speed. The screw extrusion separator carries out the solid-liquid separation stage. In the link, because the helical blade forms high-strength radial extrusion force (radial thrust) on the excrement, the reverse acting force of the fine sand in the excrement on the helical blade is also great in abrasion on the helical blade of the screw extruder.

Compared with a pump type sewage lifting method, the chain plate type lifter 23 is used for greatly avoiding the abrasion of fine sand on the impeller and the pump shell of the sewage pump; meanwhile, the abrasion of the fine sand on the helical blades of the helical extrusion separator is solved by using the pair-roller extrusion type solid-liquid separator 20. The abrasion problem of the sewage lifting pump and the abrasion problem of the solid-liquid separator part are effectively solved, and the device can be well suitable for the use environment of the sand-containing sewage.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A pasture liquid-solid separation system of sand-containing liquid dung is characterized in that the system comprises: a slope sedimentation tank, a chain plate lifter and a double-roller extrusion separator, wherein,

the bottom surface of the slope sedimentation tank is an inclined surface, and the lowest end of the inclined surface is provided with a feces collecting tank;

the pair roller squeezing separator is arranged at the top of the slope sedimentation tank and is positioned at one side close to the manure collecting tank;

the feed inlet of the chain plate hoister is positioned in the feces collecting tank, and the discharge outlet of the chain plate hoister is positioned above the feed inlet of the pair-roller extruding separator.

2. The sand-containing liquid manure solid-liquid separation system of claim 1, wherein the bottom surface of the manure collection tank is an inclined surface, the bottom of the manure collection tank is inclined in a direction opposite to the inclination direction of the ground surface of the slope sedimentation tank, and the feed inlet of the chain plate elevator is located at the bottommost end of the manure collection tank.

3. The sand-containing liquid manure solid-liquid separation system of the pasture as claimed in claim 1, wherein the pair-roller extruding separator comprises an extruding bin and a sewage collecting box which are formed by being surrounded by a housing, and a pair-roller extruding device which is installed in the extruding bin; wherein the content of the first and second substances,

a feed port is formed in one end of the extrusion bin, a discharge port is formed in the other end of the extrusion bin, the double-roll type extrusion device is arranged in a channel between the feed port and the discharge port, and the bottom surface of the extrusion bin is obliquely arranged;

the sewage collecting box is positioned below the double-roller type extrusion device, the top of the sewage collecting box is connected with the bottom of the extrusion bin, and the bottom of the sewage collecting box is provided with a sewage outlet.

4. The pasture liquid-solid separating system containing the sand-containing manure water as claimed in claim 3, wherein the pair-roller type extrusion device comprises at least one group of extrusion roller group and a driving mechanism for driving the extrusion roller group, the extrusion roller group comprises an upper extrusion roller and a lower extrusion roller which are arranged in parallel, the upper extrusion roller and the lower extrusion roller form an extrusion channel at the bottom surface of the extrusion bin, and the roller surface of the lower extrusion roller is provided with a screen hole.

5. The pasture liquid-solid separation system containing the sand-containing manure water as claimed in claim 4, wherein two ends of the lower squeeze roll are respectively fixed on the bin wall of the squeeze bin, two ends of the upper squeeze roll are respectively connected with a fixing arm, one end of the fixing arm is connected on the rotating shaft of the upper squeeze roll, and the other end of the fixing arm is rotatably fixed on the bin wall of the squeeze bin.

6. The pasture liquid-solid separating system containing the sand-containing manure water as claimed in claim 5, wherein the two ends of the upper squeeze roll are respectively provided with a compacting air bag, the compacting direction of the compacting air bags is consistent with the connecting line of the axial distance between the upper squeeze roll and the lower squeeze roll, and the compacting air bags are used for adjusting the distance between the upper squeeze roll and the lower squeeze roll.

7. The pasture liquid-solid separating system containing the sand-containing manure water as claimed in claim 4, wherein the driving mechanism comprises a speed reducer and a driving motor, the extrusion roller set is driven by one speed reducer and one driving motor, the speed reducer is a hard tooth surface cycloidal speed reducer, and the driving motor is a variable frequency motor.

8. The pasture liquid-solid separating system containing the sand-containing manure water as claimed in claim 4, wherein the upper squeeze roll is a stainless steel squeeze roll, and the lower squeeze roll is a steel skeleton polyurethane rubber roll wrapped outside.

9. The pasture liquid-solid separation system containing the sand-containing manure water as claimed in claim 1, wherein the included angle between the bottom surface of the slope sedimentation tank and the horizontal plane is 30-45 degrees.

10. The solid-liquid separation system for the sand-containing manure water in the pasture as claimed in claim 1, further comprising a sewage treatment device, wherein the sewage treatment device is connected with a sewage discharge outlet of the pair roller extrusion separator and is used for treating the sewage squeezed and separated by the pair roller extrusion separator.

Images