Slaughter house sewage oil separation tank

Abstract

The utility model provides a slaughter house sewage oil separation tank, which relates to the technical field of slaughter house sewage treatment devices, and comprises an outer tank body, a diversion trench, a sewage inlet pipe, an inner tank body, a filter plate, an oil separation pipe, a water pumping pipe and an oil pumping pipe, the diversion trench is arranged at the upper part of the inner wall of the outer tank body, the sewage inlet pipe is communicated with the diversion trench, and the inner tank body and the diversion trench are arranged at an interval; the filter plate is mounted between the diversion trench and the inner tank body, the oil separation pipe is communicated with the outer tank body and the inner tank body, a water inlet of the oil separation pipe faces the bottom of the outer tank body, and a water outlet of the oil separation pipe is formed in the middle-lower part of the inner tank body; by means of the horizontal flow type oil separation tank, the problems that hair mixed in sewage cannot be well removed through an existing horizontal flow type oil separation tank, pipelines in the oil separation tank and follow-up pipelines are prone to being blocked by the hair, and the hair can affect the follow-up flocculation and sedimentation effect can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slaughterhouse sewage treatment devices, in particular to a slaughterhouse sewage grease trap. Background Art

[0002] Slaughterhouse wastewater is wastewater discharged from various processes in the production process, including animal manure washing water discharged from the animal pen before slaughter, blood-containing wastewater discharged from the slaughter process, ground and equipment washing water, wastewater containing a large amount of pig hair discharged during hair scalding, and wastewater containing grease discharged from the dissection process. At present, the treatment processes of slaughterhouse wastewater include screen tank treatment, solid-liquid separation tank treatment, grease trap treatment, regulating tank treatment, flocculation sedimentation treatment and disinfection treatment.

[0003] Slaughterhouse sewage is different from other sewage in that it contains a lot of hair in addition to high oil content. Hair is difficult to be treated in the grid pool and solid-liquid separation pool for treating larger impurities, and will enter the grease trap. The currently used horizontal flow grease trap cannot remove the hair mixed in the sewage very well. The pipes in the grease trap and subsequent pipes are easily blocked by hair, which will affect the effect of subsequent flocculation and sedimentation. Therefore, this application proposes a slaughterhouse sewage grease trap. Utility Model Content

[0004] In order to overcome the problems in the background technology, the utility model provides a slaughterhouse sewage grease trap to solve the problem that the currently used horizontal flow grease trap cannot effectively remove hair mixed in the sewage, the pipes in the grease trap and subsequent pipes are easily blocked by hair, and the hair will affect the effect of subsequent flocculation and sedimentation.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A slaughterhouse sewage grease trap comprises an outer tank body, a guide groove, a sewage inlet pipe, an inner tank body, a filter plate, an oil trap pipe, a water suction pipe and an oil suction pipe, wherein the guide groove is arranged on the upper part of the inner wall of the outer tank body, the sewage inlet pipe is connected with the guide groove, the inner tank body and the guide groove are arranged at intervals, the filter plate is installed between the guide groove and the inner tank body, the oil trap pipe is connected with the outer tank body and the inner tank body, the water inlet of the oil trap pipe is arranged toward the bottom of the outer tank body, the water outlet is arranged in the middle and lower part of the inner tank body, the water suction pipe extends into the bottom of the inner tank body and is connected to a water pump, and the oil suction pipe extends into between the guide groove in the outer tank body and the water outlet of the oil trap pipe and is connected to the oil suction pump.

[0007] Furthermore, the guide groove is arranged around the upper part of the inner wall of the outer pool body, and the filter plate is annular and detachably installed between the overflow edge of the guide groove and the inner pool body.

[0008] Furthermore, an annular secondary filter tank is provided on the inner wall of the inner pool below the water outlet of the oil separator.

[0009] Furthermore, a plurality of oil separator pipes are arranged and are evenly and symmetrically installed on the inner tank body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The present application is provided with a guide groove, a filter plate, a grease separator and a secondary filter groove, which can remove most of the hair and grease in the sewage through multi-stage fine filtration and uniform separation of water, grease and hair by sedimentation, thereby preventing hair from accumulating and clogging the pipes. This solves the problem that the currently used horizontal flow grease separator cannot effectively remove hair mixed in the sewage, and the pipes in the grease separator and subsequent pipes are easily clogged by hair, which will affect the effect of subsequent flocculation and sedimentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in describing the embodiments are described.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0016] 1-outer tank body, 2-guide trough, 3-sewage inlet pipe, 4-inner tank body, 5-filter plate, 6-oil separator, 7-water extraction pipe, 8-oil extraction pipe, 9-secondary filter tank. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0018] The utility model discloses a slaughterhouse sewage grease trap, see Figure 1-3 A slaughterhouse sewage grease trap, comprising an outer tank body 1, a guide groove 2, a sewage inlet pipe 3, an inner tank body 4, a filter plate 5, an oil trap pipe 6, a water suction pipe 7 and an oil suction pipe 8, wherein the guide groove 2 is arranged at the upper part of the inner wall of the outer tank body 1, the sewage inlet pipe 3 is connected with the guide groove 2, the inner tank body 4 is spaced apart from the guide groove 2, the filter plate 5 is installed between the guide groove 2 and the inner tank body 4, the oil trap pipe 6 is connected with the outer tank body 1 and the inner tank body 4, the water inlet of the oil trap pipe 6 is arranged toward the bottom of the outer tank body 1, the water outlet is arranged in the middle and lower part of the inner tank body 4, the water suction pipe 7 extends into the bottom of the inner tank body 4 and is connected to the water pump, and the oil suction pipe 8 extends between the guide groove 2 in the outer tank body 1 and the water outlet of the oil trap pipe 6 and is connected to the oil suction pump.

[0019] Before treating sewage in the outer tank body 1, water is added to cover the water inlet of the grease separator 6. The outer tank body 1 can settle and preliminarily filter the grease and hair in the sewage. The sewage discharged into the diversion trough 2 by the sewage inlet pipe 3 can reach the filter plate 5 by overflow to filter the hair in the sewage, which can avoid the problem of concentrated accumulation and blockage caused by sewage directly filtered through the filter plate 5. The filtered sewage enters the water at the bottom of the outer tank body 1, and the grease and hair float on the surface of the sewage and are stratified with the sewage. As the amount of sewage increases, the sewage with grease and hair removed from the bottom layer enters the inner tank body 4 through the grease separator 6 for secondary sedimentation, and is then pumped away by the water pump 7 and enters the subsequent process. The grease and hair floating on the surface are pumped away by the oil pump 8 for subsequent treatment.

[0020] See also Figure 1-3 The guide groove 2 is arranged around the upper part of the inner wall of the outer pool body 1, and the filter plate 5 is annular and detachably installed between the overflow edge of the guide groove 2 and the inner pool body 4. The guide groove 2 can make the sewage evenly distributed for overflow, avoiding excessive concentration of grease and hair on the filter plate 5, causing blockage and affecting the hair filtering effect.

[0021] See also Figure 1-3 An annular secondary filter tank 9 is provided on the inner wall of the inner pool body 4 below the water outlet of the oil separator 6. The filter mesh number of the secondary filter tank is higher than that of the filter plate 5, which can finely filter the fine hair in the sewage and improve the hair removal effect.

[0022] See also Figure 1-3 The oil separator pipes 6 are provided with a plurality of pipes evenly and symmetrically installed on the inner tank body 4, so that the sewage can enter the inner tank body 4 evenly, and the uneven flow rate can be avoided to affect the sedimentation effect of grease and hair.

[0023] Working process:

[0024] Before treating sewage in the outer tank body 1, water is added to cover the water inlet of the grease separator 6. The sewage discharged from the sewage inlet pipe 3 into the diversion groove 2 overflows and reaches the filter plate 5 to filter the hair in the sewage. The filtered sewage enters the water at the bottom of the outer tank body 1. Grease and hair float on the surface of the sewage and are stratified from the sewage. As the amount of sewage increases and exceeds the outlet of the grease separator 6, the sewage from the bottom of the outer tank body 1 with grease and hair removed from the grease enters the inner tank body 4 through the grease separator 6, is filtered by the secondary filter tank 9, and after secondary sedimentation, is pumped away by the pumping pipe 7 to enter the subsequent process. The grease and hair floating on the surface are pumped away by the oil pumping pipe 8 for subsequent treatment.

[0025] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slaughterhouse sewage grease trap, characterized by: The invention comprises an outer tank body (1), a guide groove (2), a sewage inlet pipe (3), an inner tank body (4), a filter plate (5), an oil separator pipe (6), a water extraction pipe (7) and an oil extraction pipe (8), wherein the guide groove (2) is arranged at the upper part of the inner wall of the outer tank body (1), the sewage inlet pipe (3) is connected to the guide groove (2), the inner tank body (4) and the guide groove (2) are arranged at intervals, the filter plate (5) is installed between the guide groove (2) and the inner tank body (4), the oil separator pipe (6) is connected to the outer tank body (1) and the inner tank body (4), the water inlet of the oil separator pipe (6) is arranged toward the bottom of the outer tank body (1), the water outlet is arranged at the middle and lower part of the inner tank body (4), the water extraction pipe (7) extends into the bottom of the inner tank body (4) and is connected to a water extraction pump, and the oil extraction pipe (8) extends into between the guide groove (2) in the outer tank body (1) and the water outlet of the oil separator pipe (6) and is connected to the oil extraction pump.

2. The slaughterhouse sewage grease trap according to claim 1, characterized in that: The guide groove (2) is arranged around the upper part of the inner wall of the outer tank body (1), and the filter plate (5) is detachably mounted in an annular shape between the overflow edge of the guide groove (2) and the inner tank body (4).

3. The slaughterhouse sewage grease trap according to claim 1, characterized in that: An annular secondary filtering tank (9) is provided on the inner wall of the inner pool body (4) below the water outlet of the oil separator (6).

4. The slaughterhouse sewage grease trap according to claim 1, characterized in that: A plurality of oil separator pipes (6) are arranged and are evenly and symmetrically installed on the inner tank body (4).

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