Anaerobic treatment device and method for beef slaughter sewage

Abstract

The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a beef slaughtering sewage anaerobic treatment device and method.The beef slaughtering sewage anaerobic treatment device comprises a first disintegrating slag treatment mechanism, a centrifugal separation mechanism, a second disintegrating slag treatment mechanism, a grease treatment mechanism and a biological membrane reaction mechanism; the centrifugal separation mechanism is connected with the second disintegrating slag treatment mechanism, the grease treatment mechanism and the biological membrane reaction mechanism through pipelines, the second disintegrating slag treatment mechanism is connected with the first box body, the grease treatment mechanism is connected with the first box body, and after the first disintegrating slag treatment mechanism preliminarily filters large-size disintegrating slag in sewage, the second box body is connected with the second box body; the centrifugal separation mechanism is used for separating grease and small-size disintegrating slag in sewage, the second disintegrating slag treatment mechanism is used for filtering out the small-size disintegrating slag, the grease treatment mechanism is used for separating grease, and the sewage is treated in the biological membrane reaction mechanism; the problems that in the prior art, when sewage containing grease and disintegrating slag is treated, the sewage treatment speed and efficiency are affected, and meanwhile equipment is blocked and even damaged are effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment equipment, and specifically relates to an anaerobic treatment device and method for beef slaughter sewage. Background Art

[0002] The beef slaughtering industry occupies an important position in the field of food processing, but the problem of slaughtering wastewater has become increasingly prominent. Slaughtering wastewater contains a large amount of organic impurities such as blood, grease, minced meat, bone residue, etc., which cause serious pollution to the environment. Traditional sewage treatment methods are often difficult to effectively remove these pollutants, especially grease and debris, which will seriously affect the speed and efficiency of sewage treatment. At the same time, grease and debris will also cause equipment to be blocked or even damaged, increasing maintenance costs and treatment difficulties.

[0003] At present, the commonly used methods for treating grease and debris in existing sewage treatment equipment are mainly grid tanks, scraper tanks, coagulation tanks, hydrolysis acidification tanks, etc., which remove solid impurities and some organic matter in sewage through physical and chemical methods. However, these systems still have some problems in practical applications, such as low efficiency in removing grease and debris, complex equipment maintenance, and high energy consumption. In addition, sewage treatment equipment is often inefficient in treating high-concentration organic wastewater and is prone to sludge bulking problems.

[0004] Therefore, it is necessary to study an anaerobic treatment device and method for beef slaughter wastewater that can effectively prevent grease and debris from affecting the speed and efficiency of wastewater treatment and causing equipment blockage or even damage. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides an anaerobic treatment device and method for beef slaughter wastewater, which is used to solve the problem that the prior art will affect the speed and efficiency of sewage treatment when treating sewage containing grease and debris, and will cause equipment blockage or even damage.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An anaerobic treatment device for beef slaughter wastewater, comprising: a first debris treatment mechanism, a centrifugal separation mechanism, a second debris treatment mechanism, a grease treatment mechanism and a biofilm reaction mechanism;

[0008] The first slag processing mechanism includes a first box and a first water pump;

[0009] The centrifugal separation mechanism comprises a first shell, a slag remover, a second shell, a rotary valve core, an oil extraction valve, a paddle and a first driving motor, the first shell is provided with a liquid inlet pipe, a pressurizing chamber, a grease chamber and an oil outlet pipe, the liquid inlet pipe is connected with the pressurizing chamber, the first box is connected with the liquid inlet pipe through a first water pump and a pipeline, the oil outlet pipe is connected with the grease chamber, the slag remover is fixedly connected to the first shell, the slag remover is provided with a slag outlet pipe, the second shell is fixedly connected to the slag remover, the second shell is provided with an arc-shaped liquid extraction port, a sewage chamber and a liquid outlet pipe, the arc-shaped liquid extraction port and the liquid outlet pipe are connected with the sewage chamber, the rotary valve core is rotatably arranged in the first shell, the oil extraction valve is fixedly installed on the first shell, the oil extraction valve is rotatably matched with the rotary valve core, the paddle plate is fixedly connected to the end surface of the rotary valve core away from the oil extraction valve, the paddle plate is located at the slag remover, the first driving motor is fixedly connected to the first shell, and the first driving motor is matched with the rotary valve core;

[0010] The second slag processing mechanism is connected to the slag discharge pipe through a pipeline, and the second slag processing mechanism is connected to the first box;

[0011] The grease treatment mechanism is connected to the oil outlet pipe through a pipeline, and the grease treatment mechanism is connected to the first box;

[0012] The biofilm reaction mechanism is connected with the liquid outlet pipe through a pipeline.

[0013] Furthermore, the first slag processing mechanism also includes a first filter conveyor belt and a partition, the partition is fixedly connected to the first box body, and the first filter conveyor belt is fixedly installed in the first box body.

[0014] Furthermore, a gear groove is also provided on the first housing.

[0015] Furthermore, the rotating valve core is provided with a spiral pressure plate, a liquid inlet hole, a grease separation chamber, a connecting hole, an arc-shaped liquid distributor and external teeth. The spiral pressure plate is fixedly arranged on the side wall of the rotating valve core, and the spiral pressure plate is located in the pressure chamber. The liquid inlet hole is arranged on the side wall, and the grease separation chamber, the connecting hole and the arc-shaped liquid distributor are arranged on the rotating valve core at the same time. The grease separation chamber is connected to the pressure chamber through the liquid inlet hole, and the grease separation chamber is connected to the arc-shaped liquid distributor through the connecting hole. The external teeth are arranged on the side wall of the rotating valve core, and the external teeth are located at the gear groove. The first driving motor is meshed with the external teeth through gears.

[0016] Furthermore, an oil extraction port is provided on the oil extraction valve.

[0017] Furthermore, the paddle plate includes a connecting rod, a connecting shaft and a propeller blade, the connecting shaft is connected to the rotating valve core through the connecting rod, the propeller blade is fixedly connected to the connecting shaft, and the propeller blade is slidably matched with the inner wall of the slag extractor.

[0018] Furthermore, the second slag processing mechanism includes a second box body, a second filter conveyor belt and a second water pump, the second filter conveyor belt is fixedly connected to the second box body, the slag discharge pipe is connected to the second box body through a pipeline, and the bottom of the second box body is connected to the first box body through a second water pump and a pipeline.

[0019] Furthermore, the grease processing mechanism includes a third box body, an oil outlet weir and a third water pump. The bottom of the third box body is connected to the oil outlet pipe through a pipeline. The oil outlet weir is fixedly arranged in the third box body. The bottom of the third box body is connected to the first box body through a third water pump and a pipeline.

[0020] Furthermore, the biofilm reaction mechanism includes a fourth box, a second drive motor and a filler stirring cage, the filler stirring cage is rotatably arranged in the fourth box, the filler stirring cage is connected to the second drive motor, and the fourth box is connected to the liquid outlet pipe through a pipeline.

[0021] A sewage treatment method based on the above-mentioned beef slaughter sewage anaerobic treatment device comprises the following steps:

[0022] S1: Coarse residue filtration, the slaughter wastewater enters the first residue processing mechanism, the first filter conveyor belt filters the wastewater, and the filtered wastewater is pumped into the centrifugal separation mechanism by the first water pump;

[0023] S2: Pollutant separation: the centrifugal separation mechanism separates grease, sewage and small debris from the sewage;

[0024] S3: fine slag filtration, the second slag processing mechanism further filters the sewage and the small-volume slag filtered out by the centrifugal separation mechanism, and the filtered sewage is pumped back to the first box by the second water pump;

[0025] S4: Grease separation: the grease treatment mechanism further separates the sewage and grease from the centrifugal separation mechanism, and the separated sewage is pumped back to the first box by the third water pump;

[0026] S5: Biofilm reaction: the wastewater separated by the centrifugal separation mechanism enters the biofilm reaction mechanism for purification.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention discloses an anaerobic treatment device and method for beef slaughtering wastewater. After a first debris treatment mechanism preliminarily filters out larger debris in the wastewater, a centrifugal separation mechanism separates the grease and smaller debris in the wastewater. After that, a second debris treatment mechanism further filters out the smaller debris, and a grease treatment mechanism further separates the grease. The wastewater without grease and debris is treated in a biofilm reaction mechanism, which effectively solves the problem that the prior art will affect the speed and efficiency of wastewater treatment when treating wastewater containing grease and debris, and will cause equipment blockage or even damage.

[0029] 2. The present invention discloses an anaerobic treatment device and method for beef slaughtering wastewater, which can effectively improve the wastewater treatment speed and prevent the debris from clogging the equipment by separately treating the minced meat, bone residue and other debris in the wastewater through the first debris treatment mechanism and the second debris treatment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a centrifugal separation mechanism;

[0032] Figure 3 for Figure 2 Cross-section along line AA;

[0033] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0034] Figure 5 for Figure 3 The enlarged structural diagram at C in the middle;

[0035] Figure 6 It is a structural schematic diagram of a centrifugal separation mechanism;

[0036] Figure 7 It is a structural schematic diagram of a rotary valve core;

[0037] Figure 8 is a structural schematic diagram of the first slag processing mechanism;

[0038] Fig. 9 It is a structural diagram of the grease treatment mechanism.

[0039] The reference numerals involved in the accompanying drawings are:

[0040] 1. First slag processing mechanism; 11. First housing; 12. First filter conveyor belt; 13. Partition plate; 14. First water pump; 2. Centrifugal separation mechanism; 21. First housing; 211. Liquid inlet pipe; 212. Pressurizing chamber; 213. Grease chamber; 214. Oil outlet pipe; 215. Gear groove; 22. Slag extractor; 221. Slag outlet pipe; 23. Second housing; 231. Arc-shaped liquid inlet; 232. Sewage chamber; 233. Liquid outlet pipe; 24. Rotating valve core; 241. Spiral pressurizing plate; 242. Liquid inlet hole; 243. Grease separation chamber; 2 44. Connecting hole; 245. Curved liquid distributor; 247. External teeth; 25. Oil extraction valve; 251. Oil extraction port; 26. Paddle; 261. Connecting rod; 262. Connecting shaft; 263. Propeller blade; 27. First drive motor; 3. Second debris handling mechanism; 31. Second housing; 32. Second filter conveyor belt; 33. Second water pump; 4. Grease handling mechanism; 41. Third housing; 42. Oil outlet weir; 43. Third water pump; 5. Biofilm reaction mechanism; 51. Fourth housing; 52. Second drive motor; 53. Filling stirring cage. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0042] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0043] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0044] Embodiment 1

[0045] See also Figures 1 to 9As shown, an anaerobic treatment device for beef slaughtering wastewater includes: a first debris processing mechanism 1 for preliminarily filtering larger debris in the wastewater, a centrifugal separation mechanism 2 for separating grease, smaller debris, and wastewater, a second debris processing mechanism 3 for further filtering smaller debris and wastewater, a grease processing mechanism 4 for further separating grease from wastewater, and a biofilm reaction mechanism 5 for treating wastewater.

[0046] The first debris processing mechanism 1 includes a first box 11 and a first water pump 14. Specifically, the first debris processing mechanism 1 also includes a first filter conveyor belt 12 and a partition 13, wherein the partition 13 is fixedly connected to the first box 11, and the first filter conveyor belt 12 is fixedly installed in the first box 11. It can be understood that the first filter conveyor belt 12 is provided with filter holes with larger apertures, and when sewage enters the first box 11, the larger debris cannot pass through the filter holes and remain on the first filter conveyor belt 12, and is transported to the end of the second filter conveyor belt 32 by the first filter conveyor belt 12, and the sewage carrying grease and smaller debris enters the bottom of the first box 11 through the filter holes on the first filter conveyor belt 12, and the partition 13 can divide the upper half of the first box 11, and the sewage carrying grease and smaller debris can connect the two parts from the bottom of the first box 11.

[0047] The centrifugal separation mechanism 2 includes a first housing 21, a slag extractor 22, a second housing 23, a rotary valve core 24, an oil extraction valve 25, a paddle 26 and a first driving motor 27. The first housing 21 is provided with a liquid inlet pipe 211, a pressurizing chamber 212, a grease chamber 213 and an oil outlet pipe 214, the liquid inlet pipe 211 is connected to the pressurizing chamber 212, the first housing 11 is connected to the liquid inlet pipe 211 through a first water pump 14 and a pipeline, the oil outlet pipe 214 is connected to the grease chamber 213, the slag extractor 22 is fixedly connected to the first housing 21, the slag extractor 22 is provided with a slag outlet pipe 221, the second housing 23 is fixedly connected to the slag extractor 22, the second housing 23 is provided with an arc-shaped liquid extraction port 231, a sewage chamber 232 and a liquid outlet pipe 233, the arc-shaped liquid extraction port 231 and the liquid outlet pipe 233 are connected to the sewage chamber 232.

[0048] The rotary valve core 24 is rotatably arranged in the first housing 21, and correspondingly, a gear groove 215 is also arranged on the first housing 21. Specifically, the rotary valve core 24 is provided with a spiral pressure plate 241, a liquid inlet hole 242, a grease separation chamber 243, a connecting hole 244, an arc-shaped liquid distributor 245 and an outer tooth 247. The spiral pressure plate 241 is fixedly arranged on the side wall of the rotary valve core 24, and correspondingly, the closer to the liquid inlet hole 242, the smaller the pitch of the spiral pressure plate 241. The spiral pressure plate 241 is located in the pressure chamber 212, and the liquid inlet hole 242 is arranged on the side wall. The separation chamber 243, the connecting hole 244, and the arc-shaped liquid distributor 245 are arranged on the rotating valve core 24 at the same time. The grease separation chamber 243 is connected to the pressurizing chamber 212 through the liquid inlet hole 242. The grease separation chamber 243 is connected to the arc-shaped liquid distributor 245 through the connecting hole 244. The external teeth 247 are arranged on the side wall of the rotating valve core 24. The external teeth 247 are located at the gear groove 215. The first driving motor 27 is meshed with the external teeth 247 through gears.

[0049] The oil extraction valve 25 is fixedly mounted on the first housing 21 , and the oil extraction valve 25 is rotationally matched with the rotary valve core 24 . Specifically, an oil extraction port 251 is provided on the oil extraction valve 25 .

[0050] The paddle plate 26 is fixedly connected to the end surface of the rotary valve core 24 away from the oil extraction valve 25, and the paddle plate 26 is located at the slag extractor 22. Specifically, the paddle plate 26 includes a connecting rod 261, a connecting shaft 262 and a propeller blade 263, the connecting shaft 262 is connected to the rotary valve core 24 through the connecting rod 261, the propeller blade 263 is fixedly connected to the connecting shaft 262, and the propeller blade 263 is slidably matched with the inner wall of the slag extractor 22.

[0051] The first driving motor 27 is fixedly connected to the first housing 21 , and the first driving motor 27 cooperates with the rotating valve core 24 .

[0052] It can be understood that the first driving motor 27 can engage with the external teeth 247 through the gears to drive the rotary valve core 24 to rotate at high speed in the first shell 21; the sewage that has been preliminarily filtered by the first debris processing mechanism 1 is pumped into the pressure chamber 212 by the first water pump 14 through the liquid inlet pipe 211 and the pipeline, and the spiral pressure plate 241 rotates to squeeze the sewage toward the liquid inlet hole 242. Since the closer the distance to the liquid inlet hole 242 is, the smaller the pitch of the spiral pressure plate 241 is, the sewage has a higher pressure when it is squeezed to the liquid inlet hole 242; the sewage enters the grease separation chamber 243 through the liquid inlet hole 242, and the sewage will rotate along the side wall of the grease separation chamber 243 to flow toward the connecting hole 244, and the debris will move along the inner wall. Under the action of centrifugal force, the sewage and the grease will be located in the middle position of the grease separation chamber 243.

[0053] At this time, the rotation direction of the rotary valve core 24 is opposite to that of the sewage, and the relative rotation speed is relatively high. Grease and a small amount of sewage pass through the oil intake port 251 on the oil intake valve 25, enter the oil intake valve 25, and then enter the grease chamber 213, and then enter the grease treatment mechanism 4 through the oil outlet pipe 214 and the pipeline.

[0054] The sewage and the smaller debris move to the arc-shaped liquid distributor 245 through the connecting hole 244, and enter the arc-shaped liquid distributor 245 through the gap between the connecting rods 261 on the paddle plate 26. The propeller blades 263 push the sewage and the smaller debris toward the arc-shaped liquid inlet 231, and at the same time drive the sewage and the smaller debris to rotate at high speed; under the action of centrifugal force, the smaller debris will move along the inner wall of the debris remover 22, and the smaller debris and part of the sewage will enter the second debris processing mechanism 3 through the slag discharge pipe 221 and the pipeline; the sewage enters the sewage chamber 232 through the arc-shaped liquid inlet 231 in the middle part of the second shell 23. The arc-shaped liquid inlet 231 protrudes toward the paddle plate 26, which can effectively prevent the debris from entering the sewage chamber 232 with the sewage when there is a lot of debris.

[0055] The sewage in the sewage chamber 232 enters the biofilm reaction mechanism 5 through the liquid outlet pipe 233 and the pipeline.

[0056] The second slag processing mechanism 3 is connected to the slag discharge pipe 221 through a pipeline, and the second slag processing mechanism 3 is connected to the first box 11. Specifically, the second slag processing mechanism 3 includes a second box 31, a second filter conveyor belt 32 and a second water pump 33. The second filter conveyor belt 32 is fixedly connected to the second box 31, the slag discharge pipe 221 is connected to the second box 31 through a pipeline, and the bottom of the second box 31 is connected to the first box 11 through the second water pump 33 and the pipeline. It can be understood that the second filter conveyor belt 32 is provided with filter holes with smaller apertures, and the slag and part of the sewage separated by the centrifugal separation mechanism 2 flow to the second filter conveyor belt 32. The slag with a smaller volume cannot pass through and is sent out of the equipment by the second filter conveyor belt 32. The slag with a larger volume is sent to the end of the second filter conveyor belt 32 by the first filter conveyor belt 12 and sent out together by the second filter conveyor belt 32. The filtered sewage is pumped back to the first box 11 by the second water pump 33 through the pipeline. Correspondingly, processing larger and smaller debris separately can effectively solve the problem of directly using a filter conveyor belt with a small filter hole diameter for filtering, which is easy to cause blockage and affect the sewage treatment efficiency.

[0057] The grease treatment mechanism 4 is connected to the oil outlet pipe 214 through a pipeline, and the grease treatment mechanism 4 is connected to the first box body 11. Specifically, the grease treatment mechanism 4 includes a third box body 41, an oil outlet weir 42 and a third water pump 43. The bottom of the third box body 41 is connected to the oil outlet pipe 214 through a pipeline, the oil outlet weir 42 is fixedly arranged in the third box body 41, and the bottom of the third box body 41 is connected to the first box body 11 through the third water pump 43 and the pipeline. It can be understood that the grease and part of the sewage separated by the centrifugal separation mechanism 2 enter the bottom of the third box body 41 through the pipeline, the grease enters the top of the third box body 41 through the oil outlet weir 42, and the sewage left below is pumped back to the first box body 11 by the third water pump 43 through the pipeline.

[0058] The biofilm reaction mechanism 5 is connected to the liquid outlet pipe 233 through a pipeline. Specifically, the biofilm reaction mechanism 5 includes a fourth box 51, a second drive motor 52 and a filler stirring cage 53, the filler stirring cage 53 is rotatably arranged in the fourth box 51, the filler stirring cage 53 is connected to the second drive motor 52, and the fourth box 51 is connected to the liquid outlet pipe 233 through a pipeline. It can be understood that the sewage separated by the centrifugal separation mechanism 2 enters the fourth box 51 through the pipeline, the second drive motor 52 drives the filler stirring cage 53 to rotate in the fourth box 51, and ensures that the sewage cannot completely immerse the filler stirring cage 53, and the filler stirring cage 53 will carry air into the sewage for aeration to improve the speed and effect of the treatment while rotating and stirring the sewage for sewage treatment.

[0059] Embodiment 2

[0060] A sewage treatment method based on the anaerobic treatment device for beef slaughter sewage described in Example 1, characterized in that it comprises the following steps:

[0061] S1: Coarse residue filtration, the slaughter wastewater enters the first residue processing mechanism 1, the first filter conveyor belt 12 filters the wastewater, and the filtered wastewater is pumped into the centrifugal separation mechanism 2 by the first water pump 14;

[0062] S2: Pollutant separation, the centrifugal separation mechanism 2 separates grease, sewage and small-volume debris from the sewage;

[0063] S3: fine slag filtering, the second slag processing mechanism 3 further filters the sewage and the small-volume slag filtered out by the centrifugal separation mechanism 2, and the filtered sewage is pumped back to the first box 11 by the second water pump 33;

[0064] S4: Grease separation: the grease treatment mechanism 4 further separates the wastewater and grease from the centrifugal separation mechanism 2, and the separated wastewater is pumped back to the first box 11 by the third water pump 43;

[0065] S5: Biofilm reaction: the wastewater separated by the centrifugal separation mechanism 2 enters the biofilm reaction mechanism 5 for purification.

[0066] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An anaerobic treatment device for beef slaughter wastewater, characterized in that: include: A first debris processing mechanism (1), a centrifugal separation mechanism (2), a second debris processing mechanism (3), a grease processing mechanism (4) and a biofilm reaction mechanism (5); The first slag processing mechanism (1) comprises a first box (11) and a first water pump (14); The centrifugal separation mechanism (2) comprises a first housing (21), a slag extractor (22), a second housing (23), a rotary valve core (24), an oil extraction valve (25), a paddle (26) and a first driving motor (27); the first housing (21) is provided with a liquid inlet pipe (211), a pressurizing chamber (212), a grease chamber (213) and an oil outlet pipe (214); the liquid inlet pipe (211) is connected to the pressurizing chamber (212); the first housing (11) is connected to the liquid inlet pipe (211) via a first water pump (14) and a pipeline; the oil outlet pipe (214) is connected to the grease chamber (213); the slag extractor (22) is fixedly connected to the first housing (21); the slag extractor (22) is provided with a slag outlet pipe (221); the second housing (23) is fixedly connected to the first housing (21); On the slag extractor (22), the second shell (23) is provided with an arc-shaped liquid extraction port (231), a sewage cavity (232) and a liquid outlet pipe (233), the arc-shaped liquid extraction port (231) and the liquid outlet pipe (233) are connected to the sewage cavity (232), the rotary valve core (24) is rotatably arranged in the first shell (21), the oil extraction valve (25) is fixedly mounted on the first shell (21), the oil extraction valve (25) and the rotary valve core (24) are rotatably matched, the paddle plate (26) is fixedly connected to the end surface of the rotary valve core (24) away from the oil extraction valve (25), the paddle plate (26) is located at the slag extractor (22), the first drive motor (27) is fixedly connected to the first shell (21), and the first drive motor (27) is matched with the rotary valve core (24); The second slag processing mechanism (3) is connected to the slag discharge pipe (221) via a pipeline, and the second slag processing mechanism (3) is connected to the first box (11); The grease treatment mechanism (4) is connected to the oil outlet pipe (214) via a pipeline, and the grease treatment mechanism (4) is connected to the first box (11); The biofilm reaction mechanism (5) is connected to the liquid outlet pipe (233) via a pipeline.

2. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The first slag processing mechanism (1) further comprises a first filter conveyor belt (12) and a partition plate (13), wherein the partition plate (13) is fixedly connected to the first box body (11), and the first filter conveyor belt (12) is fixedly installed in the first box body (11).

3. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The first housing (21) is also provided with a gear groove (215).

4. The anaerobic treatment device for beef slaughter wastewater according to claim 2 is characterized by: The rotary valve core (24) is provided with a spiral pressure plate (241), a liquid inlet hole (242), a grease separation chamber (243), a connecting hole (244), an arc-shaped liquid distributor (245) and an external tooth (247); the spiral pressure plate (241) is fixedly arranged on the side wall of the rotary valve core (24); the spiral pressure plate (241) is located in the pressure chamber (212); the liquid inlet hole (242) is arranged on the side wall; the grease separation chamber (243), the connecting hole (244), the arc-shaped liquid distributor (245) and the external tooth (247) are provided on the rotary valve core (24); The liquid distributor (245) is arranged on the rotary valve core (24); the grease separation chamber (243) is connected to the pressurizing chamber (212) via a liquid inlet hole (242); the grease separation chamber (243) is connected to the arc-shaped liquid distributor (245) via a connecting hole (244); the external teeth (247) are arranged on the side wall of the rotary valve core (24); the external teeth (247) are located at the gear groove (215); and the first driving motor (27) is meshed with the external teeth (247) via a gear.

5. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The oil extraction valve (25) is provided with an oil extraction port (251).

6. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The paddle plate (26) comprises a connecting rod (261), a connecting shaft (262) and a propeller blade (263); the connecting shaft (262) is connected to the rotary valve core (24) via the connecting rod (261); the propeller blade (263) is fixedly connected to the connecting shaft (262); and the propeller blade (263) is slidably matched with the inner wall of the slag extractor (22).

7. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The second slag processing mechanism (3) comprises a second box (31), a second filter conveyor belt (32) and a second water pump (33); the second filter conveyor belt (32) is fixedly connected to the second box (31); the slag discharge pipe (221) is connected to the second box (31) through a pipeline; and the bottom of the second box (31) is connected to the first box (11) through the second water pump (33) and the pipeline.

8. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The grease treatment mechanism (4) comprises a third box (41), an oil outlet weir (42) and a third water pump (43); the bottom of the third box (41) is connected to the oil outlet pipe (214) via a pipeline; the oil outlet weir (42) is fixedly arranged in the third box (41); and the bottom of the third box (41) is connected to the first box (11) via the third water pump (43) and the pipeline.

9. The anaerobic treatment device for beef slaughter wastewater according to claim 1, characterized in that: The biofilm reaction mechanism (5) comprises a fourth housing (51), a second drive motor (52) and a filler stirring cage (53); the filler stirring cage (53) is rotatably arranged in the fourth housing (51); the filler stirring cage (53) is connected to the second drive motor (52); and the fourth housing (51) is connected to a liquid outlet pipe (233) via a pipeline.

10. A sewage treatment method based on the anaerobic treatment device for beef slaughter sewage according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: coarse residue filtration, the slaughter wastewater enters the first residue processing mechanism (1), the first filtering conveyor belt (12) filters the wastewater, and the filtered wastewater is pumped into the centrifugal separation mechanism (2) by the first water pump (14); S2: Pollutant separation, the centrifugal separation mechanism (2) separates grease, sewage and small debris in the sewage; S3: fine slag filtering, the second slag processing mechanism (3) further filters the sewage and the slag with a smaller volume filtered out by the centrifugal separation mechanism (2), and the filtered sewage is pumped back to the first box (11) by the second water pump (33); S4: Grease separation, the grease treatment mechanism (4) further separates the sewage and grease from the centrifugal separation mechanism (2), and the separated sewage is pumped back to the first box (11) by the third water pump (43); S5: Biofilm reaction. The wastewater separated by the centrifugal separation mechanism (2) enters the biofilm reaction mechanism (5) for purification.

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