Primary filtering system for slaughter sewage

Abstract

The utility model relates to the technical field of slaughter sewage treatment filtering equipment, in particular to a slaughter sewage primary filtering system which comprises a filtering tank, a water inlet channel and a water outlet channel are arranged at the two ends of the filtering tank respectively, and a first filtering part is further installed in the filtering tank. The first filtering part comprises a first filtering frame and a first filtering belt rotationally connected to the first filtering frame, the first filtering belt is obliquely arranged towards one side of the water outlet channel, a first driving mechanism used for driving the first filtering belt to move is further connected to the first filtering frame, and a residue discharging part used for discharging residues is arranged on the filtering tank. The first filter belt can timely take out solid impurities attached to the first filter belt from the filter tank under the driving action of the first driving mechanism, so that the solid impurities can be conveniently and intensively collected, the first filter belt is effectively prevented from being blocked by the solid impurities, the number of times of cleaning the first filter belt is greatly reduced, the labor cost is saved, and the working efficiency is improved. The filtering efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slaughterhouse sewage treatment and filtering equipment, in particular to a slaughterhouse sewage primary filtering system. Background Art

[0002] Steaming and slaughtering wastewater comes from pen washing, rinsing, slaughtering and other factory floor washing, scalding, dissection, side dish processing, animal residues, blood, etc. The feces left in the animal body and the blood produced during the slaughtering process contain a high amount of ammonia nitrogen. If it is not treated, it will seep into the ground or flow into the river, which will naturally damage the water on which humans depend for survival, causing the growth of blue algae, and thus causing large-scale deaths of fish and shrimp in the water.

[0003] Since slaughterhouse wastewater contains a large amount of solid debris such as bone residue and hair, in order to improve the efficiency of subsequent sewage treatment, the slaughterhouse wastewater needs to be filtered first. The current existing filtration equipment mainly relies on passing the sewage into a filter pool equipped with a filter net to filter the solid debris through the filter net. However, such a structure requires regular cleaning of the filter net, which is not only time-consuming and labor-intensive, but also causes the filter net to be clogged if it is not cleaned in time, affecting the subsequent filtration efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a primary filtering system for slaughterhouse wastewater to solve the problem that the current filtering device needs to be cleaned regularly, which is not only time-consuming and labor-intensive, but also easily causes a decrease in filtering efficiency.

[0005] The technical solution adopted by the utility model is: a primary filtration system for slaughterhouse wastewater, including a filter tank, wherein both ends of the filter tank are respectively provided with an inlet channel and an outlet channel, and a first filter part is also installed in the filter tank, the first filter part includes a first filter frame and a first filter belt rotatably connected to the first filter frame, the first filter belt is arranged inclined toward one side of the outlet channel, the first filter frame is also connected to a first driving mechanism for driving the first filter belt to move, and the filter tank is provided with a slag discharge part for discharging residues.

[0006] The above structure has the following beneficial effects:

[0007] 1. The sewage entering the filter tank passes through the first filter belt in the first filter part, and the solid waste is separated from the sewage under the filtering action of the filter belt.

[0008] 2. The first filter belt is arranged around the first filter frame and rotates around the first filter frame under the driving action of the first driving mechanism, so that the solid impurities attached to the first filter belt can be taken out from the filter pool in time for centralized collection. In this way, the first filter belt can be effectively prevented from being blocked by solid impurities, and the number of times the first filter belt needs to be cleaned is greatly reduced, which not only saves labor costs but also improves the filtration efficiency. At the same time, the first filter belt is arranged at an angle, which can also facilitate the discharge of debris from the filter pool along with the filter belt, thereby improving the effect of discharging debris.

[0009] 3. The setting of the slag discharge part can collect and discharge the solid impurities brought out from the filter tank following the first filter belt, so as to prevent the solids from falling into the filter tank again.

[0010] Preferably, the width of the filter pool is smaller than the width of the first filter belt, and a first groove for placing the first filter part is provided in the filter pool.

[0011] The width of the filter pool is smaller than the width of the first filter belt, so that all sewage entering the filter pool can pass through the first filter belt, achieving a more comprehensive filtering effect. At the same time, the setting of the first groove can fix the first filter part to prevent the first filter part from being displaced under the action of water flow, thereby ensuring that the first filter part can provide a stable filtering effect.

[0012] Preferably, a plurality of first rake teeth are provided on the first filter belt, and the first rake teeth are inclined toward the moving direction of the first filter belt.

[0013] The first rake teeth can facilitate the first filter belt to lift and discharge impurities in the filter pool, and can also hook impurities such as hair that are originally difficult to move with the first filter belt, so that they move with the first filter belt to the top of the filter pool.

[0014] Preferably, the slag discharge part includes a receiving plate and a conveyor belt for discharging materials, the receiving plate is arranged obliquely, the upper end of the receiving plate is located below the top of the first filter belt, and the lower end of the receiving plate is located above the conveyor belt.

[0015] The receiving plate can receive the solid impurities falling from the first filter belt, and make them slide along the inclined surface of the receiving plate to the conveyor belt, and then be uniformly recovered through the conveyor belt. Such a structure effectively improves the efficiency of recovering solid impurities.

[0016] Preferably, a slag box is provided at one end of the conveyor belt for discharging materials, a feed port of the slag box is located below the discharging end of the conveyor belt, a spiral conveyor plate is provided in the slag box, and a plurality of drainage outlets are provided at the bottom of the slag box.

[0017] After the solid impurities enter the slag box, they move toward the discharge port of the slag box under the push of the spiral conveyor plate inside the slag box. During the movement, the water mixed in the solid impurities can flow out from the drain port at the bottom of the slag box, further separating the solid and liquid for subsequent separate treatment.

[0018] Preferably, the pitch of the spiral conveying plate toward the discharge end is smaller than the pitch toward the feed end.

[0019] The pitch of the spiral conveyor plate decreases from the feed end to the discharge end, so that the spiral conveyor plate can gradually squeeze the solid waste in the process of pushing the solid waste, further reducing the moisture contained in the solid waste, thereby facilitating the subsequent treatment of the solid waste and wastewater respectively.

[0020] Preferably, a plurality of inclined guide rollers are symmetrically arranged on both sides of the conveyor belt.

[0021] The guide rollers are located on both sides of the conveyor belt to support both sides of the conveyor belt, so that the two sides of the conveyor belt can be higher than its internal height, thus forming an arc. This can prevent sewage in the solid waste on the conveyor belt from flowing out from both sides of the conveyor belt, reducing the risk of sewage polluting the filtration system environment.

[0022] Preferably, a second filter portion is provided between the first filter portion and the water outlet channel, the second filter portion comprises a second filter frame and a second filter belt rotatably connected to the second filter frame, the second filter belt is arranged inclined toward one side of the water outlet channel, and the second filter frame is also provided with a second driving mechanism for driving the second filter belt to move, the filtering diameter of the second filter belt is smaller than the filtering diameter of the first filter belt.

[0023] The setting of the second filter part can further filter the sewage. At the same time, by distinguishing the filtration diameters of the first filter belt and the second filter belt, the first filter part can perform coarse filtration, while the second filter part performs more fine filtration. On the one hand, it can improve the filtration efficiency, and on the other hand, it can also improve its filtration quality.

[0024] Preferably, the second filter belt is further provided with a plurality of baffles arranged along the width direction of the second filter belt, and the baffles are evenly arranged along the circumferential direction of the second filter belt.

[0025] The baffle can be set to pick up solid waste impurities from the filter tank and discharge and collect them, thereby preventing solid waste from accumulating in the second filter part or clogging the second filter part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1The utility model is a three-dimensional structural schematic diagram of a primary filtering system for slaughterhouse wastewater.

[0027] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure of the "A" area.

[0028] Figure 3 The utility model is a main structural schematic diagram of a primary filtering system for slaughterhouse wastewater.

[0029] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the "BB" region.

[0030] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure of the "D" area in the middle.

[0031] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure of the “CC” area.

[0032] Figure 7 for Figure 5 Schematic diagram of the local cross-sectional structure of the "EE" area.

[0033] Figure 8 It is a three-dimensional structural schematic diagram of a primary filtration system for slaughterhouse wastewater in Example 2 of the utility model.

[0034] Fig. 9 for Figure 8 Schematic diagram of the local enlarged structure of the "F" area in the middle.

[0035] Among them, there are a filter tank 10, an inlet channel 11, an outlet channel 12, a first trough 13, a first filter part 20, a first filter frame 21, a first filter belt 22, a first drive mechanism 23, a first rake tooth 24, a slag discharge part 30, a conveyor belt 31, a receiving plate 32, a slag box 33, a drain port 331, a spiral conveyor plate 332, a feed port 333, a slag discharge end 334, a guide roller 34, a second filter part 40, a second filter frame 41, a second filter belt 42, a second drive mechanism 43, and a baffle 44. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Example 1

[0038] According to the instruction manual Figure 1-7As shown, the utility model provides a primary filtration system for slaughterhouse wastewater, including a filter tank 10, at both ends of which are respectively provided with an inlet channel 11 for sewage to enter and an outlet channel 12 for allowing the preliminarily filtered sewage to flow out, a first filter part 20 is installed in the filter tank 10, wherein the first filter part 20 includes a first filter frame 21 installed in the filter tank 10 and a first filter belt 22 moving around the first filter frame 21, in this embodiment, the first filter belt 22 is composed of a plurality of grids, and a first driving mechanism 23 for driving the first filter belt 22 to move around the first filter frame 21 is also installed on the first filter frame 21, in order to facilitate the discharge of solid waste from the bottom of the filter tank 10, the first filter frame 21 and the first filter belt 22 are arranged obliquely, in this embodiment, the upper ends of the first filter frame 21 and the first filter belt 22 are inclined toward one side of the outlet channel 12, and a slag discharge part 30 for discharging residues is also installed on the filter tank 10.

[0039] In this embodiment, the width of the inner wall of the filter tank 10 is smaller than the width of the first filter belt 22, and a first groove 13 for installing the first filter part 20 is also opened in the filter tank 10. The bottom height of the first groove 13 is lower than the bottom height of the filter tank 10, so that the first filter part 20 can be embedded in the first groove 13. Through such an arrangement, all wastewater entering the filter tank 10 can pass through the first filter part 20 and be filtered by the first filter part 20.

[0040] A plurality of first rake teeth 24 are also installed on the first filter belt 22, and the first rake teeth 24 are inclined toward the direction of movement of the first filter belt 22, so that the first rake teeth 24 and the first filter belt 22 are arranged at an acute angle. The arrangement of the first rake teeth 24 can facilitate the removal of solid impurities in the sewage from the water, and can also hook up impurities such as animal hair mixed in the sewage, thereby greatly reducing the amount of solid impurities in the sewage.

[0041] The slag discharge part 30 includes a receiving plate 32 for receiving solid impurities dropped from the first filter part 20 and a conveyor belt 31 for moving the solid impurities. In the present embodiment, a horizontal section is provided at the upper end of the first filter part 20, and the receiving position is arranged at an angle. The upper end of the receiving plate 32 is located below the horizontal section, and the lower end of the receiving plate 32 is located above the conveyor belt 31. In this way, the impurities attached to the first filter belt 22 can fall onto the receiving plate 32 below, and the fixed impurities can move along the receiving plate 32 to the conveyor belt 31. The receiving plate 32 is an arc-shaped plate, which can not only play a good guiding role, but also prevent solid impurities from falling from both sides of the receiving plate 32.

[0042] In this embodiment, a plurality of guide rollers 34 are symmetrically installed on both sides of the conveyor belt 31. The guide rollers 34 are arranged at an angle, and the guide rollers 34 are against the two side surfaces of the conveyor belt 31, so that the upper end surface of the conveyor belt 31 is arc-shaped. This not only makes it easier to receive solid debris, but also reduces the risk of solid impurities falling from both sides of the conveyor belt 31.

[0043] In this embodiment, a slag box 33 is also installed at the discharge end of the conveyor belt 31. A feed port 333 is opened on the slag box 33. The feed port 333 is located below the discharge end of the conveyor belt 31, so that solid debris dropped from the discharge end of the conveyor belt 31 can directly fall into the slag box 33. A spiral conveyor plate 332 is rotatably installed in the slag box 33, which can push the solid impurities toward the slag discharge end 334, that is, the left end of the slag box 33. The spiral conveyor plate 332 is also connected to a driving motor for driving it to move. The driving motor is fixedly installed on the outer shell of the slag box 33. A plurality of hollow drain ports 331 are provided at the bottom of the slag box 33, so that the solid impurities can be further separated from the moisture therein during the process of moving toward the slag discharge end 334, and the separated sewage flows back to the filter tank 10 through the drain port 331.

[0044] In this embodiment, the pitch of the spiral conveying plate 332 decreases from the right end to the left end, so that in the process of pushing the solid impurities toward the left end, the spiral conveying plate 332 squeezes the solid impurities through the reduction of the pitch of the spiral conveying plate 332, thereby further squeezing out the moisture in the solid impurities, further realizing solid-liquid separation, so as to facilitate the subsequent recovery and processing of the solid impurities.

[0045] Its working principle is that slaughter sewage enters the filter tank 10 from the water inlet channel 11. When the sewage flows through the first filter part 20, it is filtered by the first filter belt 22, so that large pieces of bone residues, hair, etc. in the sewage are blocked, and at the same time, they are taken away from the sewage under the action of the first rake teeth 24, so as to achieve solid-liquid separation. When the solid impurities follow the first rake teeth 24 to move to the upper end of the first filter part 20 and rotate, the solid impurities fall on the receiving plate 32, and follow the receiving plate 32 to fall on the transmission belt below, and are transported to the slag box 33 by the conveyor belt 31. The solid impurities are pushed by the spiral conveyor plate 332 in the slag box 33 and move toward the left end of the slag box 33, that is, the discharging end. During its movement, the pitch of the spiral conveyor plate 332 gradually decreases, squeezing the solid impurities, so that the mixed water therein is squeezed and separated, and discharged from the water outlet at the bottom of the slag box 33, thereby achieving the separation of solid impurities and liquid, so as to facilitate the subsequent treatment of sewage and solid impurities separately.

[0046] Example 2

[0047] According to the instruction manual Figure 8-9As shown, the difference between this embodiment and embodiment 1 is that a second filter portion 40 is further installed between the first filter portion 20 and the water outlet channel 12, and the second filter portion 40 includes a second filter frame 41 and a second filter belt 42 wrapped around the second filter frame 41, and the upper ends of the second filter frame 41 and the second filter belt 42 are inclined toward one side of the water outlet channel 12, and a second driving mechanism 43 for driving the second filter belt 42 to move is also installed on the second filter frame 41, and the filtering diameter of the second filter belt 42 is smaller than the filtering diameter of the first filter belt 22, so that the second filter belt 42 can perform finer filtering than the first filter belt 22.

[0048] In this embodiment, a plurality of baffles 44 are also installed on the second filter belt 42 along the width direction of the second filter belt 42. The baffles 44 are evenly arranged along the circumference of the second filter belt, and a plurality of holes for drainage are opened on the baffles 44. In this way, the solid impurities in the sewage filtered by the first filter part 20 can be effectively lifted by the baffles 44, and the sewage therein can flow down from the drainage holes, thereby further realizing the separation of solid impurities and sewage. The setting of the second filter belt 42 can further reduce the amount of solid impurities contained in the sewage, so as to improve the treatment efficiency in the subsequent sewage treatment.

[0049] The directional terms mentioned in the present invention, such as "up", "down", "left", "right", etc., are only for better and clearer explanation and understanding of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] The above is a description of the preferred embodiments of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the utility model are within the scope of protection of the utility model.

Claims

1. A primary filtration system for slaughterhouse wastewater, comprising a filtration tank, wherein both ends of the filtration tank are provided with an inlet channel and an outlet channel, respectively, characterized in that: A first filter part is also installed in the filter tank, and the first filter part includes a first filter frame and a first filter belt surrounding the filter frame. The first filter belt is arranged obliquely toward one side of the water outlet channel. The first filter frame is also connected to a first driving mechanism for driving the first filter belt to move. The filter tank is also provided with a residue discharge part for discharging residue.

2. A primary filtration system for slaughterhouse wastewater according to claim 1, characterized in that: The width of the filter pool is smaller than the width of the first filter belt, and a first groove for placing the first filter part is opened in the filter pool.

3. A primary filtration system for slaughterhouse wastewater according to claim 2, characterized in that: The first filter belt is provided with a plurality of first rake teeth, and the first rake teeth are inclined toward the moving direction of the first filter belt.

4. The primary filtration system for slaughterhouse wastewater according to claim 1, characterized in that: The slag discharge part includes a receiving plate and a conveyor belt for discharging materials. The receiving plate is arranged obliquely, the upper end of the receiving plate is located below the top of the first filter belt, and the lower end of the receiving plate is located above the conveyor belt.

5. The primary filtration system for slaughterhouse wastewater according to claim 4, characterized in that: A slag box is also provided at one end of the conveyor belt for discharging materials. The feed port of the slag box is located below the discharging end of the conveyor belt. A spiral conveying plate is provided in the slag box. A plurality of drainage ports are provided at the bottom of the slag box.

6. The primary filtration system for slaughterhouse wastewater according to claim 5, characterized in that: The pitch of the spiral conveying plate toward the discharging end is smaller than the pitch toward the feeding end.

7. The primary filtration system for slaughterhouse wastewater according to claim 4, characterized in that: A plurality of inclined guide rollers are symmetrically arranged on both sides of the conveyor belt.

8. The primary filtration system for slaughterhouse wastewater according to claim 3, characterized in that: A second filter portion is also arranged between the first filter portion and the water outlet channel, and the second filter portion includes a second filter frame and a second filter belt surrounding the second filter frame, and the second filter belt is arranged obliquely toward one side of the water outlet channel. A second driving mechanism for driving the second filter belt to move is also installed on the second filter frame, and the filtering diameter of the second filter belt is smaller than the filtering diameter of the first filter belt.

9. The primary filtration system for slaughterhouse wastewater according to claim 8, characterized in that: The second filter belt is also provided with a plurality of baffles arranged along the width direction of the second filter belt, and the baffles are evenly arranged along the circumferential direction of the second filter belt.

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