Harmless sewage treatment equipment and process based on poultry breeding

Abstract

The invention relates to the technical field of sewage treatment, and discloses harmless sewage treatment equipment and process based on poultry breeding, and the harmless sewage treatment equipment based on poultry breeding comprises a screen box, a water inlet pipe arranged on the side wall of the screen box, and a water outlet pipe arranged at the lower end of the screen box, the continuous blowdown unit is arranged in the screen box and comprises a wall scraping part and a screen brushing part which are arranged in the screen box; through the arrangement of the continuous sewage discharge unit, after feathers in sewage are filtered by the screen box, the filtered feathers can be continuously collected in the sewage discharge pipe and discharged out of the screen box in time, rapid separation of the feathers and the sewage is realized, and meanwhile, the feathers can be effectively prevented from blocking filter holes to influence subsequent flowing and treatment of the sewage; the sewage treatment efficiency and quality are effectively improved, and the workload of workers is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, and in particular to a harmless sewage treatment equipment and process based on poultry breeding. BACKGROUND

[0002] The harmless sewage treatment of poultry breeding is a key measure to deal with pollution in the breeding industry and protect the ecological environment. The core background is the increasing contradiction between the large-scale development of the breeding industry and the environmental carrying capacity. With the transition of poultry breeding from the scattered mode to the large-scale and intensive mode, the discharge amount and pollution intensity of breeding sewage have increased significantly, which has become one of the main sources of agricultural pollution. In the existing process of treating the sewage generated by poultry breeding, various devices and processes are usually used for treatment, including the use of grilles or screens to preliminarily filter poultry feathers and feed particles in the sewage to prevent feathers from entering the sewage treatment system and affecting the stability, treatment efficiency and service life in the subsequent treatment process.

[0003] In the existing process of filtering feathers in sewage by using grilles or screens, the following problems exist: when filtering feathers, the feathers are in the form of long strips and fibers, and each feather has small fluff, which is easy to hook on the grating bars of the grilles or the edges of the screen meshes. At the same time, the feathers will be attached to the filter surface during the flow of sewage. With the increase of the interception amount, the feathers will be accumulated or adsorbed on the surface of the filter holes, further hindering the subsequent sewage from passing through and exacerbating the blockage. Therefore, the staff needs to regularly process the blocked feathers to ensure the continuous treatment of sewage, so it is necessary to design a sewage treatment equipment that can continuously collect and process the filtered feathers without regular manual dredging, to ensure the efficiency and quality of sewage treatment. SUMMARY

[0004] In view of the problem that the existing grilles or screens are prone to block the filter holes when filtering feathers, a harmless sewage treatment equipment and process based on poultry breeding are provided.

[0005] The present application provides a harmless sewage treatment equipment and process based on poultry breeding, which aims to: by setting a continuous sewage discharge unit, when the feathers in the sewage are filtered by the screen box, the filtered feathers can be continuously collected in the sewage discharge pipe and discharged from the screen box in time, realizing the rapid separation of feathers and sewage, effectively avoiding the blockage of feathers in the filter holes, affecting the flow and treatment of subsequent sewage, effectively improving the efficiency and quality of sewage treatment, and reducing the workload of the staff.

[0006] The technical solution of the present invention is as follows: a harmless sewage treatment device based on poultry farming, including a screen box, an inlet pipe disposed on the side wall of the screen box, an outlet pipe disposed at the lower end of the screen box, and a continuous sewage discharge unit disposed inside the screen box, wherein the continuous sewage discharge unit includes a wall scraping component and a screen brushing component disposed inside the screen box. The wall scraping component includes a rotating shaft disposed on the inner wall of the screen box, a screen cylinder disposed on the rotating shaft, a drain pipe disposed on the inner wall of the water inlet pipe, a wall scraping box disposed on the drain pipe, the lower end of the wall scraping box being fixedly connected to the interior of the drain pipe, a drive motor disposed on the outer wall of the screen cylinder, the drive end of the drive motor being fixedly connected to the rotating shaft, and a sealing ring disposed between the screen cylinder and the screen box. The water outlet pipe is located directly below the screen cylinder, the inlet of the water inlet pipe is connected to the inside of the screen cylinder, the sealing ring is used to seal the gap between the screen cylinder and the screen box, one side of the upper end of the scraper box is in close contact with the inner wall of the screen cylinder, and the other end has a gap with the inner wall of the screen cylinder.

[0007] Furthermore, the brushing component includes a sliding seat disposed on the side wall of the sealing ring, a sliding groove formed inside the sliding seat, a brushing rod slidably disposed inside the sliding groove, and a drive assembly installed between the brushing rod and the rotating shaft.

[0008] Furthermore, a return spring is installed on the side wall of the brush rod. The end of the return spring away from the brush rod is fixedly connected to the inner wall of the sliding seat. The return spring is used to reset the brush rod.

[0009] Furthermore, the drive assembly includes a compression fitting block one disposed on the side wall of the brush rod, an installation block disposed on the inner wall of the screen box, a vertical groove opened on the installation block, a motion trigger block slidably disposed inside the vertical groove, a motion synchronization rod disposed at the upper end of the motion trigger block, a compression fitting block two disposed at the upper end of the motion synchronization rod, and a reset spring two disposed between the motion trigger block and the installation block.

[0010] Furthermore, a drive rotating wheel is fixedly installed on the outer wall of the rotating shaft, and trigger protrusions are evenly and equidistantly installed on the outer wall of the drive rotating wheel with the axis of the drive rotating wheel as the center. The lower end of the motion trigger block is provided with a rounded corner, and the trigger protrusions are used to press the motion trigger block upward.

[0011] Furthermore, multiple nylon filaments are fixedly installed at the lower end of the brush rod. These nylon filaments are used to enter the sieve holes inside the sieve cylinder to clear and clean the blocked feathers.

[0012] Further, one end of the drain pipe is fixedly connected with an air pump, the air pump is intermittently opened, and high-speed airflow is generated when the air pump is opened, so that the one end of the drain pipe is in negative pressure, and the feathers collected in the drain pipe are sucked out through the negative pressure.

[0013] Further, a harmless sewage treatment process based on poultry breeding comprises the following steps: Feather treatment: the sewage is discharged into the screen box, and the feathers in the sewage are filtered and treated; Screen dredging: during the rotation of the screen cylinder, the wall scraping box scrapes the feathers on the inner wall of the screen cylinder, and the reciprocating brush rod cooperates to clean the feathers adsorbed on the inner wall of the screen cylinder; Sewage adjustment: the filtered sewage enters the adjustment tank, the PH value is adjusted to 6.5-7.5, and the water quality and quantity are balanced; Anaerobic treatment: temperature 35-38 DEG C, COD load 4-8 kg / m3.d, degradation of 70%-85% organic matter, and simultaneous production of biogas: Chemical phosphorus removal: adding polyaluminum chloride and disinfecting by ultraviolet rays: Constructed wetland: three-stage vertical wetland, filler layer thickness 60 cm, further removing trace organic matter.

[0014] Further, when the feathers enter the drain pipe, the high-speed airflow generated by the air pump drives the feathers to be discharged from the screen box and collected and treated.

[0015] The beneficial effects of the present application are: By setting the wall scraping part, when the screen cylinder filters and intercepts the feathers in the sewage, the area with the feathers adsorbed inside is driven by the continuously rotating screen cylinder to pass through the wall scraping box, the side of the wall scraping box close to the inside of the screen cylinder scrapes and cleans the blocked feathers at the screen holes, the continuously rotating screen cylinder can timely dredge the feathers blocked in the screen holes, without the need for regular treatment by the staff, effectively reducing the workload of the staff, and ensuring the continuity and efficiency of the sewage treatment.

[0016] By setting the brush net part, when the wall scraping part dredges and collects the feathers on the inner wall of the screen cylinder, the brush rod vibrates continuously and reversely cleans the feed or feathers blocked in the filter holes through the nylon wire below, and pushes the blocked pollutants into the wall scraping box, the brush net part and the wall scraping part cooperate with each other to more thoroughly clean the pollutants blocked in the screen holes of the screen cylinder, effectively ensuring the dredging of the screen, and improving the efficiency of the sewage treatment.

[0017] By installing a drain pipe, when the continuous sewage discharge unit unclogs the pollutants blocking the screen holes, the unblocked pollutants can fall directly into the drain pipe. The drain pipe can discharge the collected pollutants from the screen box immediately, making it convenient for staff to treat these pollutants in a targeted manner. This not only prevents the screen holes from clogging, but also efficiently separates pollutants from sewage, effectively improving sewage treatment efficiency and quality. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the device of the present invention; Figure 2 This is a side view schematic diagram of the structure of the present invention; Figure 3 For the present invention Figure 2 Partial sectional view of the planar structure; Figure 4 This is a schematic diagram of the continuous sewage discharge unit structure of the present invention; Figure 5 This is a schematic diagram of the wall scraping component structure of the present invention; Figure 6 For the present invention Figure 5 Frontal view of the planar structure diagram; Figure 7 This is a schematic diagram of the brushing component structure of the present invention; Figure 8 for Figure 7 A magnified structural diagram at point A in the diagram.

[0019] In the picture: 1. Screen box; 2. Inlet pipe; 3. Outlet pipe; 101. Rotating shaft; 102. Screen cylinder; 103. Sewage pipe; 104. Scraper box; 105. Drive motor; 106. Sealing ring; 201. Sliding seat; 202. Brush rod; 203. Return spring one; 301. Extrusion mating block one; 302. Mounting block; 303. Motion trigger block; 304. Motion synchronization rod; 305. Extrusion mating block two; 306. Return spring two; 307. Drive rotating wheel; 308. Triggering protrusion rod. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Example 1, referring to Figures 1-6For the first embodiment of the present application, a harmless sewage treatment equipment based on poultry breeding is provided, which comprises a screen box 1, a water inlet pipe 2 fixedly installed on the side wall of the screen box 1, a water outlet pipe 3 fixedly installed at the lower end of the screen box 1, and a continuous sewage discharge unit installed in the screen box 1, which comprises a wall scraping component and a screen brushing component fixedly installed in the screen box 1.

[0022] The wall scraping component comprises a rotating shaft 101 rotatably installed on the inner wall of the screen box 1, a screen cylinder 102 fixedly installed on the rotating shaft 101, a sewage discharge pipe 103 fixedly installed on the inner wall of the water inlet pipe 2, a wall scraping box 104 fixedly installed on the sewage discharge pipe 103, the lower end of the wall scraping box 104 being fixedly communicated with the inside of the sewage discharge pipe 103, a driving motor 105 fixedly installed on the outer wall of the screen cylinder 102, the driving end of the driving motor 105 being fixedly connected with the rotating shaft 101, and a sealing ring 106 fixedly installed on the inner wall of the screen box 1, the inner ring of the sealing ring 106 being connected with the outer wall of the screen cylinder 102 through a bearing, so that the sealing ring 106 can seal the gap between the screen cylinder 102 and the screen box 1, and the screen cylinder 102 can rotate normally.

[0023] The water outlet pipe 3 is located directly below the screen cylinder 102, the pipe opening of the water inlet pipe 2 is communicated with the inside of the screen cylinder 102, the sealing ring 106 is used to seal the gap between the screen cylinder 102 and the screen box 1, one side of the wall scraping box 104 is tightly attached to the inner wall of the screen cylinder 102, and a gap is left between the other end and the inner wall of the screen cylinder 102. One end of the sewage discharge pipe 103 is fixedly connected with an air pump, the air pump is intermittently opened, and high-speed airflow is generated when it is opened, so as to discharge the collected feathers in the sewage discharge pipe 103.

[0024] Specifically, in the sewage generated by poultry breeding, there are many poultry feathers. In the harmless treatment process of the sewage, the first step is to filter the poultry feathers in the sewage to prevent the poultry feathers from entering the subsequent sewage treatment system, causing the blockage of the sewage treatment system or the damage of the equipment, and affecting the efficiency of the overall sewage treatment. The existing method usually uses a screen or a grid to intercept and filter the feathers in the sewage. However, due to the characteristics of feathers, i.e., feathers are composed of keratin and have soft texture but strong toughness, it is difficult for water flow to crush them. When the feathers flow with the sewage through the screen, they will be wound around the edge of the mesh, gradually forming a mesh structure, and finally blocking the filtration channel. Therefore, when filtering and treating the sewage, the staff needs to regularly clean the accumulated feathers at the screen to ensure the flow of the screen in filtering the sewage and the continuity of the sewage treatment. However, artificial regular cleaning has many disadvantages, such as the need for artificial cleaning at regular intervals, complicated operation, dirty environment, and long-term work being harmful to the health of the staff.

[0025] When the screen cylinder 102 intercepts and filters the feathers in the sewage, when the feathers are adsorbed or hooked at the filter hole, the screen cylinder 102 that does not stop rotating can drive the blocked area to rotate upward, when rotating to the uppermost, the side of the scraping wall box 104 that is close to the screen cylinder 102 can dredge the feathers, and the scraped feathers fall into the scraping wall box 104 under the action of gravity, and fall into the sewage discharge pipe 103, because one end of the sewage discharge pipe 103 is connected with the air pump, the air pump is indirectly opened and generates strong suction, which can suck out the feathers collected in the sewage discharge pipe 103 from the equipment, and facilitate subsequent unified treatment of the feathers.

[0026] Because the sewage discharge pipe 103 is fixedly installed on the inner wall of the water inlet pipe 2, the scraping wall box 104 is in a static state during the rotation of the screen cylinder 102, and the screen cylinder 102 and the scraping wall box 104 are matched with each other by continuously rotating, so that the feathers blocked on the inner wall of the screen cylinder 102 can be dredged and collected in time without affecting the filtration of the sewage, the efficiency of sewage treatment is effectively improved, the workload of the staff is reduced, manual intervention is not required throughout the process, manual dredging in the screen cylinder 102 is avoided, and the health of the staff is affected. And the cost is low, and it is suitable for mass production.

[0027] In use, the sewage to be treated is discharged into the screen cylinder 102 through the water inlet pipe 2, the sewage passes through the screen cylinder 102 and is discharged through the water outlet pipe 3 under the action of gravity, and the screen cylinder 102 intercepts and filters the feathers in the sewage during the discharge process, the intercepted feathers are adsorbed or hooked at the filter hole, the driving motor 105 drives the screen cylinder 102 to rotate synchronously through the driving end, the screen cylinder 102 drives the intercepted feathers to rotate synchronously during the rotation process, when the feathers rotate to the uppermost, one end of the scraping wall box 104 scrapes and cleans the inner wall of the screen cylinder 102, the scraped feathers fall into the sewage discharge pipe 103 under the action of gravity, and the negative pressure generated in the sewage discharge pipe 103 can suck out the feathers from the equipment, so that the staff can uniformly treat the collected feathers.

[0028] Embodiment 2, refer to Figures 4-8 For the second embodiment of the application, which is different from the first embodiment: the brush screen component includes a sliding seat 201 fixedly installed on the side wall of the sealing ring 106, a sliding groove opened in the sliding seat 201, a brush screen rod 202 slidingly installed in the sliding groove, and a driving assembly installed between the brush screen rod 202 and the rotating shaft 101. A reset spring 203 is fixedly installed on the side wall of the brush screen rod 202, one end of the reset spring 203 away from the brush screen rod 202 is fixedly connected with the inner wall of the sliding seat 201, and the reset spring 203 is used for resetting the brush screen rod 202.

[0029] The driving assembly comprises an extrusion fitting block one 301 fixedly installed on the sidewall of the brush screen rod 202, an installation block 302 fixedly installed on the inner wall of the screen box 1, a vertical slot opened on the installation block 302, a movement trigger block 303 slidingly installed in the vertical slot, a movement synchronization rod 304 fixedly installed on the upper end of the movement trigger block 303, an extrusion fitting block two 305 fixedly installed on the upper end of the movement synchronization rod 304, and a reset spring two 306 fixedly installed between the movement trigger block 303 and the installation block 302. The outer wall of the rotating shaft 101 is fixedly installed with a driving rotating wheel 307, the outer wall of the driving rotating wheel 307 is uniformly and equidistantly installed with trigger convex rods 308 with the axis point of the driving rotating wheel 307 as the axis, and the lower end of the movement trigger block 303 is opened with a rounded corner, and the trigger convex rods 308 are used for extruding the movement trigger block 303 upward.

[0030] Specifically, since the wall scraping component can only clean the feathers adsorbed and hooked on the screen, the inside of the screen hole is usually blocked by small feathers or feed, and therefore the brush screen component is designed to cooperate with the wall scraping component, the wall scraping component is used for cleaning the blocked feathers on the inner wall surface of the screen cylinder 102, and the brush screen component is used for filtering and cleaning the impurities blocked in the screen hole. The two can better dredge the blocked areas of the screen cylinder 102, so that the sewage can flow at a normal flow rate after entering the inside of the screen cylinder 102, and the efficiency of sewage treatment is improved.

[0031] The driving assembly is used for driving the brush screen rod 202 to vibrate continuously, the brush screen rod 202 in the vibrating process is provided with a plurality of nylon wires at the lower end, the nylon wires can be inserted into the inside of the screen hole in the reciprocating movement in the horizontal direction, the impurities blocked in the inside of the screen hole are pushed out to the inside of the screen cylinder 102 in the inserting process of the nylon wires, and the impurities (small feathers or feed) also fall into the sewage discharge pipe 103 and are simultaneously sucked out of the equipment under the action of gravity. The working principle of the driving assembly is as follows: when the rotating shaft 101 rotates to drive the driving rotating wheel 307 on the outer wall to rotate, the driving rotating wheel 307 drives the trigger convex rods 308 on the outer wall to rotate synchronously, the trigger convex rods 308 generate an upward thrust on the movement trigger block 303 in the process of rotating to the uppermost position, the movement trigger block 303 drives the movement synchronization rod 304 to move upward, the extrusion fitting block one 301 and the extrusion fitting block two 305 are extruded with each other in the upward movement process of the movement synchronization rod 304, the brush screen rod 202 is driven to displace in the horizontal direction, the plurality of trigger convex rods 308 are alternately in contact with the movement trigger block 303 in the movement, so that the reciprocating vibration of the brush screen rod 202 is realized, and the nylon wires at the lower end of the brush screen rod 202 can clean the impurities blocked in the inside of the screen hole.

[0032] In use, when the rotating shaft 101 rotates, the driving rotating wheel 307 and the plurality of trigger lugs 308 on the outer wall are driven to rotate synchronously. When the trigger lugs 308 rotate to the uppermost position, the trigger lugs 308 press against the moving trigger block 303, driving the moving trigger block 303 to move upward. During the upward movement of the moving trigger block 303, the extrusion fitting block two 305 is driven to move upward synchronously by the movement synchronization rod 304. Since the inclined surfaces of the extrusion fitting block two 305 and the extrusion fitting block one 301 are in close contact with each other, when the extrusion fitting block two 305 moves upward, the extrusion fitting block one 301 is driven to move horizontally, and in turn, the brush screen rod 202 is driven to move horizontally synchronously. The displaced brush screen rod 202 is reset under the elastic force of the reset spring one 203. The plurality of trigger lugs 308 alternately press against the moving trigger block 303, thereby realizing the unclogging of the impurities blocking the screen holes of the screen cylinder 102 by the brush screen rod 202. The unclogged impurities also fall into the scraping wall box 104 under the action of gravity, completing the transportation and separation of the impurities.

[0033] The remaining structure is the same as that of Example 1.

[0034] Example 3, with reference to Figures 1-8 A harmless sewage treatment process based on poultry farming, comprising the following steps: Feather processing: the sewage is discharged into the screen box 1 to filter and process the feathers in the sewage; Screen unclogging: the sewage to be treated is discharged into the screen cylinder 102 through the water inlet pipe 2. The sewage passes through the screen cylinder 102 and is discharged through the water outlet pipe 3 under the action of gravity. The screen cylinder 102 intercepts and filters the feathers in the sewage during the discharge process. The intercepted feathers are adsorbed or hooked on the filter holes. The driving motor 105 drives the screen cylinder 102 to rotate synchronously through the driving end. The screen cylinder 102 drives the intercepted feathers to rotate synchronously during rotation. When the feathers rotate to the uppermost position, one end of the scraping wall box 104 scrapes and cleans the inner wall of the screen cylinder 102. The feathers adsorbed or hooked on the inner wall surface of the screen cylinder 102 are scraped off by the scraping wall box 104. The scraped feathers fall into the scraping wall box 104 under the action of gravity. Since the interior of the scraping wall box 104 and the interior of the sewage discharge pipe 103 are in communication with each other, the feathers directly enter the interior of the sewage discharge pipe 103.

[0035] When the rotating shaft 101 rotates, the driving rotating wheel 307 and the plurality of trigger protruding rods 308 on the outer wall are driven to rotate synchronously. When the trigger protruding rod 308 rotates to the uppermost position, the trigger protruding rod 308 is pressed against the moving trigger block 303, driving the moving trigger block 303 to move upward. During the upward movement of the moving trigger block 303, the extrusion fitting block two 305 is driven to move upward synchronously through the movement synchronization rod 304. Since the inclined surfaces of the extrusion fitting block two 305 and the extrusion fitting block one 301 are in close contact with each other, when the extrusion fitting block two 305 moves upward, the extrusion fitting block one 301 is driven to move horizontally, and in turn, the brush screen rod 202 is driven to move horizontally synchronously. After displacement, the brush screen rod 202 is reset under the elastic force of the reset spring one 203. The plurality of trigger protruding rods 308 alternately press the moving trigger block 303, so that the brush screen rod 202 can continuously realize reciprocating movement in the horizontal direction.

[0036] During the reciprocating movement of the brush screen rod 202, the plurality of nylon wires at the lower end move synchronously in the horizontal direction. During the movement, the nylon wires are intermittently inserted into the inside of the sieve hole at the lower end, pushing the impurities clogging the inside of the sieve hole out of the sieve hole and falling into the wall scraping box 104 under the action of gravity, thereby realizing the dredging of the impurities clogging the sieve hole of the sieve screen cylinder 102 by the brush screen rod 202. The dredged impurities also fall into the wall scraping box 104 under the action of gravity, completing the transportation and separation of the impurities.

[0037] Sewage conditioning: The filtered sewage enters the conditioning tank, and the PH is adjusted to 6.5-7.5 to balance the water quality and quantity.

[0038] Anaerobic treatment: temperature 35-38℃, COD load 4-8kg / m³·d, degradation of 70%-85% of organic matter, and simultaneous production of biogas.

[0039] Chemical phosphorus removal: polyaluminum chloride is added, and ultraviolet rays are used for disinfection.

[0040] Constructed wetland: three-stage vertical wetland, filler layer thickness 60cm, further removal of trace organic matter.

[0041] Specifically, when the feathers enter the sewage pipe 103, the high-speed airflow generated by the air pump causes negative pressure at one end of the sewage pipe 103, and the suction force generated by the negative pressure drives the feathers to exit the sieve screen box 1 and be collected and treated.

[0042] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A harmless sewage treatment equipment based on poultry farming, comprising a screen box (1), a water inlet pipe (2) arranged on the side wall of the screen box (1), and a water outlet pipe (3) arranged at the lower end of the screen box (1), characterized in that, Also include a continuous sewage unit arranged inside the screen box (1), the continuous sewage unit includes a wall scraping component arranged inside the screen box (1) and a screen brushing component; The wall scraping component includes a rotating shaft (101) arranged on the inner wall of the screen box (1), a screen cylinder (102) arranged on the rotating shaft (101), a sewage pipe (103) arranged on the inner wall of the water inlet pipe (2), a wall scraping box (104) arranged on the sewage pipe (103), the lower end of the wall scraping box (104) is fixedly communicated with the inside of the sewage pipe (103), a driving motor (105) arranged on the outer wall of the screen cylinder (102), the driving end of the driving motor (105) is fixedly connected with the rotating shaft (101), a sealing ring (106) arranged between the screen cylinder (102) and the screen box (1); The water outlet pipe (3) is located directly below the screen cylinder (102), the pipe opening of the water inlet pipe (2) and the inside of the screen cylinder (102) are communicated with each other, the sealing ring (106) is used for sealing the gap between the screen cylinder (102) and the screen box (1), one side of the wall scraping box (104) is tightly attached to the inner wall of the screen cylinder (102), and the other end leaves a gap with the inner wall of the screen cylinder (102).

2. A non-hazardous wastewater treatment plant based on poultry farming according to claim 1, characterized in that, The screen brushing component includes a sliding seat (201) arranged on the side wall of the sealing ring (106), a sliding groove opened in the inside of the sliding seat (201), a screen brushing rod (202) slidingly arranged in the inside of the sliding groove, and a driving assembly installed between the screen brushing rod (202) and the rotating shaft (101).

3. A poultry farming based non-hazardous wastewater treatment apparatus according to claim 2, characterized in that, A reset spring one (203) is installed on the side wall of the screen brushing rod (202), one end of the reset spring one (203) away from the screen brushing rod (202) is fixedly connected with the inner wall of the sliding seat (201), and the reset spring one (203) is used for resetting the screen brushing rod (202).

4. The poultry farming-based non-hazardous wastewater treatment apparatus according to claim 3, characterized by The driving assembly includes a pressing fitting block one (301) arranged on the side wall of the screen brushing rod (202), an installation block (302) arranged on the inner wall of the screen box (1), a vertical groove opened on the installation block (302), a movement trigger block (303) slidingly arranged in the inside of the vertical groove, a movement synchronization rod (304) arranged on the upper end of the movement trigger block (303), a pressing fitting block two (305) arranged on the upper end of the movement synchronization rod (304), and a reset spring two (306) arranged between the movement trigger block (303) and the installation block (302).

5. A non-hazardous wastewater treatment plant based on poultry farming according to claim 4, characterized in that, A driving rotating wheel (307) is fixedly installed on the outer wall of the rotating shaft (101), a plurality of trigger convex rods (308) are uniformly and equidistantly installed on the outer wall of the driving rotating wheel (307) with the axis point of the driving rotating wheel (307) as the axis, a rounded corner is opened on the lower end of the movement trigger block (303), and the trigger convex rods (308) are used for extruding the movement trigger block (303) upward.

6. A non-hazardous wastewater treatment apparatus based on poultry farming according to claim 3, characterized in that, A plurality of nylon wires are fixedly installed on the lower end of the screen brushing rod (202), and the nylon wires are used for entering the screen holes in the inside of the screen cylinder (102) to dredge and clean the blocked feathers.

7. The non-hazardous wastewater treatment equipment based on poultry farming according to claim 1, characterized in that, One end of the drain pipe (103) is fixedly connected with an air pump, the air pump is intermittently opened and generates high-speed airflow when opened, so that the one end of the drain pipe (103) is in negative pressure, and the feathers collected in the drain pipe (103) are sucked out of the drain pipe (103) through the negative pressure.

8. A poultry farming-based harmless sewage treatment process using the poultry farming-based harmless sewage treatment device according to claim 6, characterized by, The method comprises the following steps: Feather processing: the sewage is discharged into the screen box (1), and the feathers in the sewage are filtered and treated; Screen dredging: during the rotation of the screen cylinder (102), the wall scraping box (104) scrapes the feathers on the inner wall of the screen cylinder (102), and cooperates with the reciprocating brush rod (202) to clean the feathers adsorbed on the inner wall of the screen cylinder (102); Sewage regulation: the filtered sewage enters the regulation tank, the PH value is adjusted to 6.5-7.5, and the water quality and quantity are balanced; Anaerobic treatment: temperature 35-38℃, COD load 4-8kg / m³·d, degradation of 70%-85% of organic matter, and simultaneous production of biogas; Chemical phosphorus removal: adding polyaluminum chloride and disinfecting by ultraviolet rays; Artificial wetland: three-stage vertical wetland, filler layer thickness 60cm, further removing trace organic matter.

9. A process for the treatment of effluent from poultry farming without causing harm, as claimed in claim 8, wherein, When the feathers enter the drain pipe (103), the high-speed airflow generated by the air pump drives the feathers to be discharged from the screen box (1) and collected and treated.

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