Self-cleaning type solid-liquid separation device
By introducing spray rack assembly and membrane separation assembly into the solid-liquid separation device, the problem of screen hole blockage is solved, long-term separation and cost reduction are achieved, and the service life and economic benefits of the device are improved.
Patent Information
- Application Number
- CN202422011548.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In the treatment of poultry and livestock manure, the screen holes are easily blocked by manure residue, resulting in screen corrosion and device failure, affecting separation efficiency and economic benefits.
A self-cleaning solid-liquid separation device is designed, including a rolling screen assembly, a spray rack assembly and a membrane separation assembly. The rolling screen assembly is cleaned by spraying the liquid to avoid clogging the screen hole. The spray rack assembly is used to spray the liquid onto the rolling screen assembly to prevent viscous slag from clogging the screen hole.
It realizes the long-term use of solid-liquid separation devices, reduces production costs, improves economic benefits, and avoids screen corrosion and device failure.
Smart Images
Figure CN223060833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of livestock and poultry manure treatment, in particular to a self-cleaning solid-liquid separation device. Background Art
[0002] With the large-scale development of the livestock and poultry breeding industry, a large amount of organic wastewater mixed with organic substances (such as feces, fertilizers, feeds, feathers, etc.) will be generated during the production process of livestock and poultry farms. These wastewaters contain nutrients such as nitrogen and phosphorus. Discharging these organic wastewaters randomly will cause serious damage to the environment. Therefore, existing farmers mostly use solid-liquid separation devices to separate and perform subsequent harmless treatment on the organic wastewater.
[0003] In the existing organic separation devices in the technical field of livestock and poultry manure treatment, a rolling screen or a vibrating screen is mostly used to separate fecal sewage and fecal residues. However, the existing devices do not solve the problem that the water content of the fecal residues after separation by the solid-liquid separation device is still as high as about 70%, resulting in the screen holes being easily blocked by the water-containing fecal residues, and then the screen being corroded and even the solid-liquid separation device malfunctioning and being damaged.
[0004] Therefore, it is of great significance to obtain a self-cleaning solid-liquid separation device that can prevent screen hole blockage. Summary of the Utility Model
[0005] The main purpose of the utility model is to provide a self-cleaning solid-liquid separation device, aiming to solve the problem of screen hole blockage caused by the organic waste of existing livestock and poultry manure.
[0006] To achieve the above purpose, the self-cleaning solid-liquid separation device proposed by the utility model includes:
[0007] A housing, a partition wall is further provided on the housing, a separation space and a cleaning space are respectively formed between the partition wall and the housing, and through holes are further provided on the partition wall, and the through holes are used to communicate the separation space and the cleaning space;
[0008] A rolling screen assembly, the rolling screen assembly is arranged along the central axis of the housing and is located inside the separation space, and at least one end of the rolling screen assembly is connected to the partition wall;
[0009] A spray rack assembly, the spray rack assembly is erected above the rolling screen assembly, the spray rack assembly includes a spray head, a spray rack and a spray liquid pump, the spray liquid pump is arranged in the cleaning space and is arranged at the horizontal position corresponding to the through hole, the spray head is connected to the spray liquid pump through the spray rack, the spray head penetrates through the partition wall and at least one end is arranged inside the separation space and is arranged directly above the space corresponding to the rolling screen assembly;
[0010] A membrane separation module, at least one end of the membrane separation module penetrates through the housing and is connected to the partition wall through the through hole, and one end of the membrane separation module is fixedly connected to the outer wall of the housing.
[0011] Preferably, the membrane separation module includes a fixing member and a filtered liquid inlet head. The fixing member passes through the through hole and abuts against the partition wall. The fixing member forms a filtering channel that communicates the separation space with the cleaning space. The filtered liquid inlet head is disposed in the filtering channel and abuts against the fixing member.
[0012] Preferably, the spray rack assembly further includes a connecting pipe. The number of spray racks is multiple, and the multiple spray racks are arranged along the axial length direction of the rolling screen assembly. The multiple spray racks are connected by the connecting pipe, and the number of nozzles corresponds to the number of spray racks.
[0013] Preferably, the spray rack assembly further includes a valve. The valve is disposed above the spray rack and at least one end of the valve is disposed outside the housing. The number of valves corresponds to the number of spray racks.
[0014] Preferably, the self-cleaning solid-liquid separation device further includes a reaction bed assembly. The reaction bed assembly is disposed in the separation space corresponding to the vertical projection of the rolling screen assembly, and at least one end of the reaction bed assembly abuts against the inner wall of the housing, and at least one end of the reaction bed assembly abuts against the partition wall.
[0015] Preferably, the self-cleaning solid-liquid separation device further includes a liquid outlet assembly. The liquid outlet assembly further includes a liquid outlet valve and a bidirectional pipe group. The bidirectional pipe group penetrates through the housing and at least one end of the bidirectional pipe group is connected to the liquid outlet valve.
[0016] Preferably, the self-cleaning solid-liquid separation device further includes a slag collection device. At least one end of the slag collection device is disposed inside the housing and corresponds to the vertical projection of the rolling screen assembly, and at least one end of the slag collection device penetrates through the housing.
[0017] The self-cleaning solid-liquid separation device of the present utility model is provided with a rolling screen assembly and a spray rack assembly. During the separation process of organic waste in the field of livestock and poultry manure treatment technology, after separation by the rolling screen assembly, viscous slag (livestock and poultry manure) and liquid are obtained. The liquid is obtained as turbid liquid after removing residual organic waste in the liquid. Then, the turbid liquid is passed through a filtration membrane by a spray liquid pump for membrane separation to obtain clear liquid. Finally, the clear liquid is sprayed onto the rolling screen assembly through the spray rack assembly to clean the rolling screen assembly, avoiding corrosion and even failure and damage of the solid-liquid separation device caused by the blockage of the screen holes of the rolling screen assembly by the viscous slag, realizing safe separation during the separation process, thereby realizing the long-term use of the solid-liquid separation device, reducing production costs, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0019] Figure 1 It is a schematic cross-sectional structure diagram of a self-cleaning solid-liquid separation device in an embodiment of the present utility model;
[0020] Figure 2 It is a schematic structure diagram of a spray rack assembly and a rolling screen assembly in an embodiment of the present utility model;
[0021] Figure 3 It is a schematic structure diagram of a membrane separation assembly in an embodiment of the present utility model.
[0022] Explanation of the reference numerals in the drawings:
[0023]
[0024]
[0025] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.
[0027] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0028] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0029] The present utility model provides a self-cleaning solid-liquid separation device 1000, including: a housing 100, the housing 100 is further provided with a partition wall 110, a separation space 111 and a cleaning space 112 are respectively formed between the partition wall 110 and the housing 100, and the partition wall 110 is further provided with a through hole 113 for communicating the separation space 111 and the cleaning space 112; a rolling screen assembly 200, the rolling screen assembly 200 is arranged along the central axis of the housing 100 and is located inside the separation space 111, and at least one end of the rolling screen assembly 200 is connected to the partition wall 110; a spray rack assembly 300, the spray rack assembly 300 is arranged above the rolling screen assembly 200, the spray rack assembly 300 includes a spray head 310, a spray rack 320 and a spray liquid pump 330, the spray liquid pump 330 is arranged in the cleaning space 112 and the spray liquid pump 330 is arranged corresponding to the horizontal position of the through hole 113, the spray head 310 is connected to the spray liquid pump 330 through the spray rack 320, the spray head 310 penetrates through the partition wall 110 and at least one end is arranged inside the separation space 111 and is arranged corresponding to the vertical upper part of the space of the rolling screen assembly 200; a membrane separation assembly 400, at least one end of the membrane separation assembly 400 penetrates through the housing 100 and is connected to the partition wall 110 through the through hole 113, and one end of the membrane separation assembly 400 is fixedly connected to the outer wall of the housing 100.
[0030] In one embodiment, such as Figures 1-3As shown in the figure, the self-cleaning solid-liquid separation device 1000 of the present utility model includes a housing 100, a rolling screen assembly 200, a spray rack assembly 300, and a membrane separation assembly 400. The housing 100 is divided into a cleaning space 112 and a separation space 111 by the membrane separation assembly 400. An operator feeds sewage mixed with livestock and poultry manure into the separation space 111 inside the housing 100. After separation by the rolling screen assembly 200, a viscous slag (livestock and poultry manure) and a liquid material are obtained. The liquid material naturally falls to the lower part of the separation space 111 due to gravity. After removing residual organic waste, the liquid material becomes a turbid liquid. Then, through a spray liquid pump 330, the turbid liquid is sucked into the cleaning space 112 through the through hole 113 and undergoes membrane separation by the membrane separation assembly 400 to obtain a clear liquid. Finally, the clear liquid is sprayed onto the rolling screen assembly 200 through the spray rack assembly 300 to clean the rolling screen assembly 200. The spray liquid pump 330 and the spray rack 320 of the spray rack assembly 300 are both arranged in the cleaning space 112. One end of the spray head 310 is arranged in the cleaning space 112, and the other end is arranged in the separation space 111, and the spray head 310 is arranged directly above the space corresponding to the rolling screen assembly 200. It can be understood that the number of spray heads 310 can be multiple, and the multiple spray heads 310 are arranged along the length direction of the rolling screen assembly 200. In this embodiment, two spray heads 310 are provided on one spray rack 320, and the two spray heads 310 are respectively arranged corresponding to both sides of the rolling screen assembly 200 to clean the screen inside the rolling screen assembly 200 when the rolling screen assembly 200 separates sewage mixed with livestock and poultry manure. At the same time, the number of spray liquid pumps 330 can be set according to actual needs to supply the clear liquid to the spray heads 310.
[0031] In one embodiment, the membrane separation assembly 400 includes a fixing member 410 and a filtering liquid inlet head 420. The fixing member 410 passes through the through hole 113 and abuts against the partition wall 110. The fixing member 410 forms a filtering channel that communicates the separation space 111 with the cleaning space 112. The filtering liquid inlet head 420 is arranged in the filtering channel and the filtering membrane abuts against the fixing member 410.
[0032] Specifically, the fixing member 410 can be an industrial polymer compound such as engineering plastics or silicone compounds. The fixing member 410 passes through the through hole 113 and is fixedly connected to the partition wall 110 to ensure the liquid tightness requirement between the separation space 111 and the cleaning space 112, and at the same time avoid the risk of workpiece corrosion caused by long-term contact with fecal sewage. In this embodiment, the membrane separation assembly 400 further includes a filtering device 440, a liquid inlet pipe 440, and a liquid outlet pipe 450. The liquid inlet pipe 440 and the liquid outlet pipe 450 are respectively connected to both ends of the filtering device 440. One end of the liquid inlet pipe 440 communicates with the separation space 111 through the liquid inlet head 420 for filtration, and one end of the liquid outlet pipe 450 communicates with the cleaning space 112. The turbid liquid discharged from the separation space 111 is guided to the filtering device 440 through the liquid inlet pipe 440. The filtering device 440 performs membrane separation on the turbid liquid to obtain clear liquid, and then guides the clear liquid into the cleaning space 112. The clear liquid is then guided to the spray head 310 through the spray liquid pump 330 for cleaning the rolling screen assembly 200.
[0033] It can be understood that the filtering device 440 can further include a pretreatment device and a membrane device. The pretreatment device is used to remove organic matter and solid suspended matter in the turbid liquid. The filter membrane selected for the membrane device can be one or several of a COD membrane, a ceramic microfiltration membrane, a composite polyamide nanofiltration membrane, and a polymer reverse osmosis membrane.
[0034] In one embodiment, the spray rack assembly 300 further includes a connecting pipe 340. The number of spray racks 320 is multiple, and the multiple spray racks 320 are arranged along the axial length direction of the rolling screen assembly 200. The multiple spray racks 320 are connected through the connecting pipe 340. The spray heads 310 are arranged corresponding to the number of spray racks 320.
[0035] Specifically, in this embodiment, the number of connecting pipes 340 is four, and the four connecting pipes 340 connect the spray racks 320 corresponding to the axial length direction of the rolling screen assembly 200.
[0036] It can be understood that the number of connecting pipes 340 can be increased or decreased according to actual needs.
[0037] In one embodiment, the spray rack assembly 300 further includes a valve 350. The valve 350 is arranged above the spray rack 320 and at least one end of the valve 350 is arranged outside the housing 100. The number of valves 350 is arranged corresponding to the number of spray racks 320.
[0038] Specifically, in this embodiment, the valve 350 is disposed on the spray boom 320 and outside the housing 100 for easy direct control by an operator. The valve 350 is a three-way valve 350, with two ports respectively connected to two nozzles 310, and one end connected to the spray boom 320. The clear liquid flows from the hollow pipe in the spray boom 320 through the valve 350 to the nozzles 310. The number of valves 350 is three, and the three valves 350 respectively correspond to the horizontal centers of the two nozzles 310 on each of the three spray booms 320. The operator can control the spraying speed by controlling the valve 350.
[0039] In one embodiment, the self-cleaning solid-liquid separation device 1000 further includes a reaction bed assembly 500. The reaction bed assembly 500 is disposed in the separation space 111 below the vertical projection of the rolling screen assembly 200. At least one end of the reaction bed assembly 500 abuts against the inner wall of the housing 100, and at least one end of the reaction bed assembly 500 abuts against the partition wall 110.
[0040] Specifically, in this embodiment, the reaction bed assembly 500 is an Upflow Anaerobic Sludge Bed (UASB for short), which reacts or fixes the suspended solid waste in the liquid obtained after separation by the rolling screen assembly 200 and discharges the turbid liquid. Then, the turbid liquid is filtered by the filtering device 440 to obtain clear liquid.
[0041] In one embodiment, the self-cleaning solid-liquid separation device 1000 further includes a liquid outlet assembly 600. The liquid outlet assembly 600 further includes a liquid outlet valve 610 and a bidirectional pipeline group 620. The bidirectional pipeline group 620 penetrates through the housing 100 and at least one end of the bidirectional pipeline group 620 is connected to the liquid outlet valve 610.
[0042] Specifically, the bidirectional pipeline group 620 can discharge the clear liquid obtained after being filtered by the filtering device 440 from the cleaning space 112 to the outside, and can also supply water through the bidirectional pipeline group 620 when the clear liquid in the cleaning space 112 is insufficient. The bidirectional pipeline group 620 is provided with a corresponding liquid outlet valve 610. The operator discharges the clear liquid from the cleaning space 112 by turning the liquid outlet valve 610, which is convenient for collecting, transferring the clear liquid or supplementing clean water into the cleaning space 112.
[0043] In one embodiment, the self-cleaning solid-liquid separation device 1000 further includes a slag collection device 700. At least one end of the slag collection device 700 is disposed inside the housing 100 and below the vertical projection of the rolling screen assembly 200, and at least one end of the slag collection device 700 penetrates through the housing 100.
[0044] Among them, in this embodiment, the slag collection device 700 can discharge the slag from inside the housing 100 through a pump. A discharge port 710 is provided on one side of the slag collection device 700 away from the housing 100. After the operator starts the pump, the discharge port 710 is opened to discharge the slag.
[0045] In another embodiment, the slag collection device 700 includes a scraper and a scraper motor. The scraper motor is electrically connected to the scraper. The scraper abuts against the reaction bed assembly 500. When it is necessary to discharge the slag from the self-cleaning solid-liquid separation device 1000, the operator starts the scraper motor, and the scraper motor drives the scraper to discharge the solid fertilizer remaining at the bottom of the housing 100. It can be understood that the specific form and driving method of the scraper will not affect the technical effect of the present invention.
[0046] In another embodiment, the slag collection device 700 further includes a mass sensor and an alarm device. The mass sensor is used to detect the mass of the slag remaining in the housing 100. When the mass of the slag remaining in the housing 100 reaches the threshold, the alarm device gives an alarm and notifies the operator to discharge the slag in time.
[0047] The self-cleaning solid-liquid separation device of the present invention is provided with a rolling screen assembly and a spray rack assembly. During the separation process of organic waste in the field of livestock and poultry manure treatment technology, the operator passes the sewage mixed with livestock and poultry manure into the separation space inside the housing. After being separated by the rolling screen assembly, viscous slag (livestock and poultry manure) and liquid are obtained. The liquid naturally falls by gravity into the reaction bed assembly below. After reacting through the reaction bed assembly, the residual organic waste in the liquid is removed to obtain turbid liquid. Then, the operator sucks the turbid liquid into the cleaning space through the through hole by a spray liquid pump and performs membrane separation through a filter membrane to obtain clear liquid. Finally, the clear liquid is sprayed onto the rolling screen assembly through the spray rack assembly to clean the rolling screen assembly, avoiding corrosion caused by the clogging of the screen holes of the rolling screen assembly by the viscous slag and even the failure and damage of the solid-liquid separation device, realizing safe separation during the separation process, thereby realizing the long-term use of the solid-liquid separation device, reducing production costs, and improving economic benefits.
[0048] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A self-cleaning solid-liquid separation device, characterized in that, Comprising: A housing, a partition wall is further provided in the housing, a separation space and a cleaning space are respectively formed between the partition wall and the housing, and through holes are further provided in the partition wall for communicating the separation space and the cleaning space; A rolling screen assembly, the rolling screen assembly is arranged along the central axis of the housing and is located inside the separation space, and at least one end of the rolling screen assembly is connected to the partition wall; A spray rack assembly, the spray rack assembly is erected above the rolling screen assembly, the spray rack assembly includes a spray head, a spray rack and a spray liquid pump, the spray liquid pump is arranged in the cleaning space and is arranged at the horizontal position corresponding to the through hole, the spray head is connected to the spray liquid pump through the spray rack, the spray head penetrates through the partition wall and at least one end is arranged inside the separation space and is arranged directly above the space corresponding to the rolling screen assembly; A membrane separation assembly, at least one end of the membrane separation assembly penetrates through the housing and is connected to the partition wall through the through hole, and one end of the membrane separation assembly is fixedly connected to the outer wall of the housing.
2. The self-cleaning solid-liquid separation device according to claim 1, wherein The membrane separation assembly includes a fixing member and a filtered liquid inlet head, the fixing member passes through the through hole and abuts against the partition wall, the fixing member forms a filtering channel for communicating the separation space and the cleaning space, the filtered liquid inlet head is arranged in the filtering channel and the filtered liquid inlet head abuts against the fixing member.
3. The self-cleaning solid-liquid separation device according to claim 1, characterized in that The spray rack assembly further includes a connecting pipe, the number of the spray racks is multiple, the multiple spray racks are arranged along the axial length direction of the rolling screen assembly, the multiple spray racks are connected through the connecting pipe, and the spray heads are arranged corresponding to the number of the spray racks.
4. The self-cleaning solid-liquid separation device according to claim 3, characterized in that, The spray rack assembly further includes a valve, the valve is arranged above the spray rack and at least one end of the valve is arranged outside the housing, and the number of the valves is arranged corresponding to the number of the spray racks.
5. The self-cleaning solid-liquid separation device according to claim 1, characterized in that, The self-cleaning solid-liquid separation device further includes a reaction bed assembly, the reaction bed assembly is arranged in the separation space corresponding to the vertical projection of the rolling screen assembly, and at least one end of the reaction bed assembly abuts against the inner wall of the housing and at least one end of the reaction bed assembly abuts against the partition wall.
6. The self-cleaning solid-liquid separation device according to claim 1, characterized in that, The self-cleaning solid-liquid separation device further includes a liquid outlet assembly, the liquid outlet assembly further includes a liquid outlet valve and a bidirectional pipe group, the bidirectional pipe group penetrates through the housing and at least one end of the bidirectional pipe group is connected to the liquid outlet valve.
7. The self-cleaning solid-liquid separation device according to claim 1, characterized in that, The self-cleaning solid-liquid separation device further includes a slag collection device, at least one end of the slag collection device is arranged inside the housing and corresponds to the vertical projection of the rolling screen assembly, and at least one end of the slag collection device penetrates through the housing.