Filter screen solid-liquid separation device

Abstract

The utility model discloses a filter screen solid-liquid separation device, and relates to the technical field of livestock and poultry manure treatment, the filter screen solid-liquid separation device comprises a roller screen assembly, the roller screen assembly comprises a screen barrel, a feed port and a discharge port, one end of the feed port is connected with the screen barrel, the discharge port is connected with one end, far away from the feed port, of the screen barrel, and the other end of the screen barrel is connected with the roller screen assembly; the screen barrel is further provided with a first liquid outlet, and the first liquid outlet is formed in the lower portion of the screen barrel. One end of the solid-phase recovery assembly is connected with the roller screen assembly through a discharge port; at least one end of the liquid phase recovery assembly is connected with the screen barrel through the first liquid outlet, and at least one end of the liquid phase recovery assembly is connected with the solid phase recovery assembly through the second liquid outlet. According to the filter screen solid-liquid separation device provided with the roller screen assembly, the solid-phase recovery assembly and the liquid-phase recovery assembly, solid waste and liquid waste which are subjected to solid-liquid separation are respectively recovered and reutilized, so that the recovery cost is reduced, and the economic benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of livestock and poultry manure treatment, in particular to a filter screen solid-liquid separation device. Background Art

[0002] With the large-scale development of the livestock and poultry farming industry, livestock and poultry farms produce a large amount of organic wastewater mixed with organic matter (feces, fertilizers, feed, feathers, etc.) during the production process. These wastewaters contain nutrients such as nitrogen and phosphorus. The arbitrary discharge of these organic wastewaters will cause serious damage to the environment. Therefore, existing farmers mostly use solid-liquid separation devices to separate organic wastewater for subsequent harmless treatment.

[0003] In the existing organic separation devices in the field of livestock manure treatment technology, gravity separation technology or screening technology is mostly used to separate fecal sewage and fecal residue. However, the existing solid-liquid separation device does not solve the problem that the water content of the fecal residue after separation is still as high as about 70%, the residual product is difficult to utilize, the amount of sewage after separation is large and concentrated, and the treatment cost is high.

[0004] Therefore, it is of great significance to obtain a filter screen solid-liquid separation device that can increase the utilization rate of the separated products and reduce the processing cost. Utility Model Content

[0005] The main purpose of the utility model is to provide a filter screen solid-liquid separation device, aiming to solve the problem of low utilization rate of existing organic waste materials such as poultry and livestock manure.

[0006] To achieve the above-mentioned purpose, the filter screen solid-liquid separation device proposed in the present invention comprises:

[0007] A rolling screen assembly, comprising a screen barrel, an inlet, and a discharge port, wherein one end of the inlet port is connected to the screen barrel, and the discharge port is connected to an end of the screen barrel away from the inlet port. The screen barrel is further provided with a first drain port, which is arranged below the screen barrel.

[0008] a solid phase recovery assembly, one end of which is connected to the rolling screen assembly through the discharge port, and the solid phase recovery assembly further comprising a second liquid discharge port, which is disposed below the solid phase recovery assembly;

[0009] A liquid phase recovery component, wherein at least one end of the liquid phase recovery component is connected to the screen barrel through the first liquid drainage port, and at least one end of the liquid phase recovery component is connected to the solid phase recovery component through the second liquid drainage port.

[0010] Preferably, the solid phase recovery component includes a shell and a roller group, one end of the shell is connected to the discharge port, the roller group is arranged along the length direction of the shell and the roller group is rotatably connected to the shell.

[0011] Preferably, the rolling roller group includes triangular rollers and rotating shafts. There are multiple triangular rollers, and the number of rotating shafts is set corresponding to the number of triangular rollers. The rotating shaft is set perpendicular to the length direction of the shell, and the triangular rollers are connected to the shell around the axial direction of the rotating shaft.

[0012] Preferably, the solid phase recovery component further includes a drying device, which is arranged along the circumference of the shell. The drying device includes a heater and a temperature control device, which is electrically connected to the heater, and the heater is arranged along the length direction of the shell.

[0013] Preferably, the liquid phase recovery component includes a liquid storage tank body, one end of the liquid storage tank body is provided with a liquid inlet, and the end away from the liquid inlet is provided with a liquid outlet, and the liquid outlet and the liquid inlet are both provided with a liquid sealing structure.

[0014] Preferably, the liquid phase recovery component also includes an air outlet pipe and an air-water separator, the air outlet pipe is connected to the liquid storage tank body, the air outlet pipe is arranged above the liquid storage tank body, and the air-water separator is arranged on one end of the air outlet pipe away from the liquid storage tank body.

[0015] Preferably, the liquid phase recovery component further comprises a purifier, which is arranged on one end of the air outlet pipe away from the gas-water separator, and the purifier is connected to the liquid storage tank body through the air outlet pipe.

[0016] The utility model is provided with a filter screen solid-liquid separation device having a rolling screen component, a solid phase recovery component and a liquid phase recovery component. The solid waste after solid-liquid separation is recovered by the solid phase recovery component and the liquid waste is recovered by the liquid phase recovery component. The solid waste is dried and broken up into solid substances such as padding or solid fertilizer. The liquid waste is converted into liquid fertilizer and the waste gas emitted during the conversion process is recovered at the same time, thereby reducing the recovery cost and improving the economic benefit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a filter screen solid-liquid separation device in one embodiment of the present invention;

[0019] Figure 2 This is a structural diagram of a roller assembly in one embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a liquid phase recovery component in one embodiment of the present invention.

[0021] Description of Figure Numbers:

[0022] Label name Label name 1000 Filter solid-liquid separation device 100 Rolling screen assembly 110 Screen bucket 120 Feeding port 130 Discharge port 140 First drain port 150 bracket 200 Solid phase recovery components 210 Second drain port 220 case 230 Roller group 231 Triangular roller 232 Rotation axis 240 Drying components 241 heater 242 Temperature control device 300 Liquid phase recovery components 310 Liquid storage tank 320 liquid inlet 330 Liquid outlet 340 Exhaust pipe 350 Gas-water separator 360 purifier

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0027] The utility model provides a filter screen solid-liquid separation device 1000, comprising: a rolling screen assembly 100, the rolling screen assembly 100 including a screen barrel 110, an inlet 120, and a discharge port 130, one end of the inlet 120 is connected to the screen barrel 110, the discharge port 130 is connected to the end of the screen barrel 110 away from the inlet 120, the screen barrel 110 is further provided with a first drain port 140, and the first drain port 140 is arranged below the screen barrel 110;

[0028] A solid phase recovery assembly 200, one end of which is connected to the rolling screen assembly 100 via the discharge port 130, and the solid phase recovery assembly 200 further includes a second drain port 210, which is disposed below the solid phase recovery assembly 200;

[0029] The liquid phase recovery component 300 , at least one end of the liquid phase recovery component 300 is connected to the screen barrel 110 through the first drainage port 140 , and at least one end of the liquid phase recovery component 300 is connected to the solid phase recovery component 200 through the second drainage port 210 .

[0030] In this embodiment, the rolling screen assembly 100 also includes a bracket 150, and the screen barrel 110 and the bracket 150 are fixedly connected at an angle, one end of the screen barrel 110 is connected to the feed port 120, and the other end of the screen barrel 110 away from the feed port 120 is connected to the discharge port 130; the vertical height of the feed port 120 is higher than the vertical height of the discharge port 130, that is, the organic waste mixed with feces can naturally flow from the feed port 120 to the discharge port 130 by gravity, and the screen barrel 110 is an axisless rolling screen, and its two ends are connected to the driving wheel, and the screen barrel 110 is driven to rotate by the driving wheel. Two first drainage ports 140 are provided below the screen barrel 110, and the two first drainage ports 140 are provided at one end below the screen barrel 110 close to the discharge port 130, so as to facilitate the discharge of the liquid separated in the screen barrel 110 downward. One end of the solid phase recovery component 200 is connected to the discharge port 130. The solid phase recovery component 200 is used to filter and break up the viscous slag after preliminary separation, so that the water content in the slag is reduced and the agglomerated viscous slag is broken up, so that the viscous slag can be converted into dry and loose slag, which is convenient for converting the slag into cattle mattress material or solid fertilizer. A second drain port 210 is also provided below the solid phase recovery component 200. The second drain port 210 discharges the liquid phase separated from the solid phase recovery component 200 downwardly. In this embodiment, the liquid phase discharged through the first drain port 140 and the second drain port 210 are both passed through a liquid pipeline to the liquid phase recovery component 300, and the liquid phase recovery component 300 is arranged underground. A liquid inlet 320 is provided at one end of the liquid phase recovery component 300. By recovering the liquid phase separated from the solid phase recovery component 200 and the screen barrel 110, the feed liquid is directed into the liquid phase recovery component 300, so that the feed liquid can be converted into liquid fertilizer in the liquid phase recovery component 300.

[0031] It is understandable that a microbial agent spraying device can also be provided in the solid phase recovery component 200 to remove harmful substances such as heavy metal substances in the slag in the solid phase recovery component 200.

[0032] In one embodiment, the solid phase recovery component 200 includes a shell 220 and a roller group 230. One end of the shell 220 is connected to the discharge port 130. The roller group 230 is arranged along the length direction of the shell 220 and is rotatably connected to the shell 220.

[0033] In this embodiment, the shell 220 is a hollow cylinder, and a solid phase recovery space is formed in the shell 220. The roller group 230 is arranged in the solid phase recovery space. The roller group 230 is parallel to the ground and is divided into two layers, the upper and lower layers. The viscous slag separated from the screen barrel 110 is filtered through the roller group 230 to further perform solid-liquid separation, reduce the water content in the slag, and break up the agglomerated slag to facilitate subsequent production.

[0034] In one embodiment, the rolling roller group 230 includes a triangular roller 231 and a rotating shaft 232. There are multiple triangular rollers 231, and the number of rotating shafts 232 is set corresponding to the number of triangular rollers 231. The rotating shaft 232 is set perpendicular to the length direction of the shell 220, and the triangular roller 231 is connected to the shell 220 around the axial direction of the rotating shaft 232.

[0035] In this embodiment, the cross-sectional shape of the triangular roller 231 is a Loehler triangle, the rotating shaft 232 passes through the central axis of the triangular roller 231, and the multiple rotating shafts 232 are arranged in parallel, so that the multiple triangular rollers 231 can further remove moisture from the filtered material residue, and the multiple triangular rollers 231 rotate independently; in this embodiment, the multiple rotating shafts 232 are all arranged parallel to the ground.

[0036] In another embodiment, the rotating shaft 232 can be set in the solid phase recovery space along the diameter of the shell 220, and the multiple rotating shafts 232 are set at an angle. When the multiple triangular rollers 231 rotate around multiple different rotating shafts 232 respectively, the shear stress on the slag can be increased, thereby enhancing the solid-liquid separation effect of the slag.

[0037] In another embodiment, the specific configuration of the triangular roller 231 can be one of the configurations such as Loehler triangular prism and Loehler tetrahedron. It can be understood that the specific configuration of the triangular roller 231 does not affect the technical effect of the present invention.

[0038] In one embodiment, the solid phase recovery component 200 also includes a drying device 240, which is arranged along the circumference of the shell 220. The drying device 240 includes a heater 241 and a temperature control device 242. The temperature control device 242 is electrically connected to the heater 241, and the heater 241 is arranged along the length direction of the shell 220.

[0039] In this embodiment, the outer shell of the solid phase recovery component 200 is a hollow cylindrical structure, and the outer shell of the solid phase recovery component 200 is a multi-layer structure, in which a drying device 240 is provided in any layer. The drying device 240 can be a heating wire. It is understandable that the drying device 240 can select a corresponding heating method according to actual needs. The temperature control device 242 is provided on the end of the solid phase recovery component 200 away from the screen barrel 110, and one end of the temperature control device 242 is provided in the solid phase recovery space. The temperature control device 242 includes an alarm light and a sensor. The sensor is used to detect the temperature of the slag. The alarm light is connected to the sensor to prompt the operator of the current working condition, so as to facilitate the detection of whether the slag to be discharged from the solid phase recovery component 200 meets the discharge requirement. When the temperature control device 242 detects that the slag meets the discharge temperature requirement, the temperature control device 242 sends an electrical signal to the drying device 240 to stop heating and discharge the material outward.

[0040] In another embodiment, the solid phase recovery component 200 can also be provided with a control computer, a sensor and a discharge door. The control computer is electrically connected to the sensor and the discharge door. The discharge door is arranged at one end of the solid phase recovery component 200 away from the screen barrel 110 to realize discharging. The sensor can be at least one of an air pressure sensor, a temperature sensor, and a mass sensor. The sensor transmits a signal to the control computer, and the control computer compares the current sensor data with the discharge demand data. When the control computer detects that the slag meets the discharge demand, the control computer sends a signal to the discharge door, and the discharge door is opened to discharge.

[0041] In one embodiment, the liquid phase recovery assembly 300 includes a liquid storage tank body 310, one end of the liquid storage tank body 310 is provided with a liquid inlet 320, and the end away from the liquid inlet 320 is provided with a liquid outlet 330, and both the liquid outlet 330 and the liquid inlet 320 are provided with a liquid sealing structure.

[0042] In detail, it can be understood that the liquid phase recovery component 300 is also provided with a filtering device, which is provided with a suspended matter filtering device, a heavy metal filtering device, and an ammonia nitrogen filtering device. The suspended matter filtering device can be a non-woven fabric filtering device with a filler such as a polymer coagulant, a biological flocculant, etc. added to remove suspended matter; the heavy metal filtering device can be a heavy metal adsorbent mixed with a heavy metal scavenger or inorganic materials such as manganese oxide, montmorillonite, zeolite, or a composite biological heavy metal adsorbent mixed with a composite microbial agent and chlorella to remove heavy metals in the feed liquid; the ammonia nitrogen filtering device can be added to the feed liquid by using a struvite crystallization precipitation method to add Mg 2+ Solution, generating magnesium ammonium phosphate (MgNH4PO4·6H2O, referred to as MAP, commonly known as struvite), to achieve a better ammonia nitrogen and phosphorus removal effect, by removing suspended matter, heavy metals and ammonia nitrogen and other substances in the liquid, so as to facilitate the recycling of the liquid.

[0043] In one embodiment, the liquid phase recovery component 300 also includes an air outlet pipe 340 and an air-water separator 350. The air outlet pipe 340 is connected to the liquid storage tank body 310. The air outlet pipe 340 is arranged above the liquid storage tank body 310. The air-water separator 350 is arranged on the air outlet pipe 340 at one end away from the liquid storage tank body 310.

[0044] In this embodiment, the end of the air outlet pipe 340 away from the liquid storage tank body 310 is connected to the gas-water separator 350. The air outlet pipe 340 discharges the gas generated by the liquid phase recovery component 300 in the process of converting organic wastewater into liquid fertilizer, so as to avoid accidents caused by excessive pressure in the liquid storage tank body 310. The gas-water separator 350 can remove the liquid phase contained in the gas discharged from the liquid storage tank body 310 to prevent leakage into the environment.

[0045] In one embodiment, the liquid phase recovery assembly 300 further includes a purifier 360 , which is disposed on an end of the outlet pipe 340 away from the gas-water separator 350 , and is connected to the liquid storage tank 310 via the outlet pipe 340 .

[0046] It is understandable that a certain amount of hydrogen sulfide and saturated water vapor will be produced during the conversion of the feed liquid in the liquid phase recovery component 300. As the gas is transmitted in the pipeline, the gas temperature gradually drops and the hydrogen sulfide forms an acidic liquid, causing pipeline corrosion. Therefore, it is necessary to remove the mixed hydrogen sulfide.

[0047] In this embodiment, the purifier 360 is arranged on the outlet pipe 340 at one end away from the gas-water separator 350. When the biogas generated in the liquid storage tank 310 is dehydrated through the gas-water separator 350, it enters the purifier 360, and the hydrogen sulfide in the gas is removed by the purifier 360 to achieve safe discharge of the gas.

[0048] The utility model is provided with a filter screen solid-liquid separation device having a rolling screen component, a solid phase recovery component and a liquid phase recovery component. The solid waste after solid-liquid separation is recovered by the solid phase recovery component and the liquid waste is recovered by the liquid phase recovery component. The solid waste is dried and broken up into solid materials such as padding or solid fertilizer to improve the utilization value and increase the economic benefits. The liquid waste is converted into liquid fertilizer and the waste gas emitted during the conversion process is recovered at the same time, thereby reducing the recovery cost and improving the economic benefits.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A filter screen solid-liquid separation device, characterized in that: include: A rolling screen assembly, comprising a screen barrel, an inlet, and a discharge port, wherein one end of the inlet port is connected to the screen barrel, and the discharge port is connected to an end of the screen barrel away from the inlet port. The screen barrel is further provided with a first drain port, which is arranged below the screen barrel. a solid phase recovery assembly, one end of which is connected to the rolling screen assembly through the discharge port, and the solid phase recovery assembly further comprising a second liquid discharge port, which is disposed below the solid phase recovery assembly; A liquid phase recovery component, wherein at least one end of the liquid phase recovery component is connected to the screen barrel through the first liquid drainage port, and at least one end of the liquid phase recovery component is connected to the solid phase recovery component through the second liquid drainage port.

2. The filter screen solid-liquid separation device according to claim 1, characterized in that: The solid phase recovery component includes a shell and a roller group. One end of the shell is connected to the discharge port. The roller group is arranged along the length direction of the shell and is rotatably connected to the shell.

3. The filter screen solid-liquid separation device according to claim 2, characterized in that: The grinding roller group includes a triangular roller and a rotating shaft. There are multiple triangular rollers, and the number of the rotating shafts is set corresponding to the number of the triangular rollers. The rotating shaft is set perpendicular to the length direction of the shell, and the triangular roller is connected to the shell around the axial direction of the rotating shaft.

4. The filter screen solid-liquid separation device according to claim 3, characterized in that: The solid phase recovery component also includes a drying device, which is arranged along the circumference of the shell. The drying device includes a heater and a temperature control device, which is electrically connected to the heater. The heater is arranged along the length direction of the shell.

5. The filter screen solid-liquid separation device according to claim 1, characterized in that: The liquid phase recovery component includes a liquid storage tank body, one end of the liquid storage tank body is provided with a liquid inlet, and the end away from the liquid inlet is provided with a liquid outlet, and the liquid outlet and the liquid inlet are both provided with a liquid sealing structure.

6. The filter screen solid-liquid separation device according to claim 5, characterized in that: The liquid phase recovery component also includes an air outlet pipe and an air-water separator. The air outlet pipe is connected to the liquid storage tank body. The air outlet pipe is arranged above the liquid storage tank body. The air-water separator is arranged on one end of the air outlet pipe away from the liquid storage tank body.

7. The filter screen solid-liquid separation device according to claim 6, characterized in that: The liquid phase recovery component further includes a purifier, which is arranged on one end of the air outlet pipe away from the gas-water separator, and is connected to the liquid storage tank body through the air outlet pipe.

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