A pet food production wastewater filtering and recycling device

Abstract

The utility model discloses a pet food production wastewater filtering and recycling device, and relates to the technical field of wastewater filtering. The pet food production wastewater filtering and recycling device comprises a shell, a treatment mechanism is arranged in the shell and is used for filtering wastewater and discharging filtered impurities, and the treatment mechanism comprises: a filtering assembly, a stirring motor movably installed on the outer side of the shell, a stirring plate fixedly installed at the tail end of the rotating shaft of the stirring motor, when a cleaning motor drives a cleaning roller to rotate, the cleaning action of bristles on the surface of a filter screen and residual filter hole impurities will directly sweep the impurities into the open impurity discharge area below instead of sweeping the impurities to the left solution area, the flow guide cover on one side of the shell can block the impurities that may splash when the cleaning roller sweeps, ensure that all cleaned impurities are limited in the right impurity discharge area, and finally discharged through the open structure, and the whole process does not contact the left solution, so that the impurities are completely prevented from returning to the solution in the cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of wastewater filtration technology, specifically a wastewater filtration and recycling device for pet food production. Background Technology

[0002] The core function of wastewater filtration equipment in pet food production is to remove pollutants such as suspended solids and organic residues from wastewater, ensuring that subsequent wastewater treatment meets discharge standards and reducing environmental pollution. It also intercepts solid impurities such as meat scraps, bone meal, grain particles, and grease in wastewater, preventing these substances from directly entering subsequent biochemical treatment systems or natural water bodies.

[0003] The existing Chinese utility model patent with publication number CN209957543U discloses a wastewater filtration and recovery device. Addressing the problem of low wastewater treatment efficiency in existing systems, the following solution is proposed: It includes a filter box, which is a hollow rectangular structure with an opening at the top. A collection box is connected to one side wall of the filter box, and a drive motor is screwed to the connection between the collection box and the filter box. The output shaft of the drive motor is connected to a horizontally positioned rotating rod, the end of which penetrates the filter box and extends to the other side of the filter box, where a vertically positioned main gear disk is connected. This utility model has a novel structure, and the device can effectively filter wastewater and promptly clean solid impurities on the filter screen, improving filtration efficiency. Simultaneously, the device can also mix and stir the filtered wastewater and purifying agent, further improving wastewater treatment and recovery efficiency.

[0004] The aforementioned device processes wastewater through a metal mesh with a conveyor belt-like structure. During operation, debris may get stuck in the filter holes on the surface of the metal mesh and fall off due to the impact of the water flow when it moves downwards. Furthermore, the scraper used to clean the filter mesh may scrape the filtered debris into the filter box below during the cleaning process, affecting the filtration effect. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pet food production wastewater filtration and recycling device, which solves the problem that impurities embedded inside the filter screen are washed down by the water flow during the movement of the filter screen, and that the filtered impurities return to the solution during the cleaning of the filter screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A pet food production wastewater filtration and recycling device includes a housing, and a processing mechanism is provided inside the housing for filtering the wastewater and discharging the filtered impurities. The processing mechanism includes:

[0007] The filter assembly includes a stirring motor movably mounted on the outside of the housing, a stirring plate fixedly mounted at the end of the rotating shaft of the stirring motor, a connecting frame fixedly mounted on the top of the housing, a water inlet pipe fixedly mounted above the connecting frame, a baffle fixedly mounted on the inner wall of the housing, a limiting shaft movably mounted inside the housing, a filter screen sleeved on the outside of the limiting shaft, a conveying motor connected to one side of the limiting shaft, and a flow guide fixedly mounted on one side of the housing.

[0008] The cleaning component, located inside the housing, is used to clean debris stuck inside the filter pores.

[0009] Preferably, the cleaning assembly includes a cleaning motor fixedly installed on one side of the housing, a cleaning roller fixedly installed at the end of the rotating shaft of the cleaning motor, and an air compressor fixedly installed on one side of the housing, an air guide pipe fixedly installed at the exhaust end of the air compressor, and a nozzle fixedly installed at the top of the air guide pipe.

[0010] Preferably, the interior of the outer shell is provided with a vertical partition, the right end of the right wall of the outer shell is an open structure, the bottom of the left end of the outer shell is provided with a drain valve, and the bottom of the left inner cavity of the outer shell is an inverted triangular structure.

[0011] Preferably, the stirring plate and the outer shell are rotatably connected, the limiting shaft and the outer shell are rotatably connected, the installation height of the left limiting shaft of the outer shell is lower than that of the right, the filter screen is inclined and sleeved on the outside of the two limiting shafts, and the conveying motor is fixedly connected to the outer shell.

[0012] Preferably, the cleaning roller is provided with bristles on its outer side, the cleaning roller is located below the top of the filter screen, the cleaning roller is rotatably connected to the outer shell, and the cleaning roller is located on the open inner cavity side of the outer shell.

[0013] Preferably, the air guide tube passes through the top horizontal structure of the outer shell and is located between the upper and lower planar structures of the filter screen, and the nozzles are equidistantly installed below the top horizontal structure of the air guide tube and tilted towards the filter screen.

[0014] Beneficial effects

[0015] This invention provides a filtration and recycling device for wastewater from pet food production. Compared with the prior art, it has the following advantages:

[0016] (1) In the pet food production wastewater filtration and recycling device, the air compressor in the cleaning component generates high-pressure airflow. The airflow is precisely delivered to the nozzle through the air guide pipe. The nozzle is installed below the horizontal structure at the top of the air guide pipe, which is exactly between the upper and lower planes of the filter screen and tilted towards the filter screen. This position allows the airflow to act directly on the filter holes from the inside of the filter screen before the embedded material rotates with the filter screen and reaches the horizontal structure below. This thoroughly blows away the embedded material in advance, preventing the material from remaining below the filter screen and being exposed to the impact range of the water flow above. The shell is equipped with a vertical partition, which clearly divides the inner cavity into the solution area on the left (used to contain the filtered wastewater) and the open impurity discharge area on the right. The material blown away by the airflow from the nozzle will fall directly into the open impurity discharge area on the right under the combined action of the guiding force of the inclined conveying of the filter screen and the boosting force of the airflow, completely isolating it from the solution area on the left. This structurally eliminates the possibility of the material being flushed back into the solution by the water flow above.

[0017] (2) The pet food production wastewater filtration and recycling device adopts a dual cleaning method of "airflow + bristles" for the cleaning components. When the airflow generated by the air compressor blows away the impurities in the filter holes through the air guide pipe and nozzle, the tilt angle of the nozzle is consistent with the tilt conveying direction of the filter screen, which can guide the impurities to the right open impurity discharge area. The cleaning roller (with bristles on the outside) is installed below the top of the filter screen and corresponds to the right open impurity discharge area of ​​the outer shell. When the cleaning motor drives the cleaning roller to rotate, the brush sweeping action of the filter screen surface and residual impurities in the filter holes will directly sweep the impurities into the open impurity discharge area below, rather than sweeping them into the solution area on the left. The guide cover on one side of the outer shell can block the impurities that may splash during the cleaning of the cleaning roller, ensuring that all the impurities that are cleaned are confined in the right impurity discharge area and finally discharged through the open structure, without contacting the solution on the left throughout the process, thus completely avoiding the impurities returning to the solution during the cleaning process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation position of the cleaning roller and filter screen of this utility model;

[0021] Figure 4 This is a schematic diagram of the nozzle and filter screen positions of this utility model;

[0022] In the diagram: 1. Outer shell; 2. Processing mechanism; 21. Filter assembly; 211. Stirring motor; 212. Stirring plate; 213. Connecting frame; 214. Water inlet pipe; 215. Baffle; 216. Limiting shaft; 217. Filter screen; 218. Conveyor motor; 219. Flow guide; 22. Cleaning assembly; 221. Cleaning motor; 222. Cleaning roller; 223. Air compressor; 224. Air guide pipe; 225. Nozzle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a pet food production wastewater filtration and recycling device includes a housing 1, and a processing mechanism 2 is provided inside the housing 1 for filtering the wastewater and discharging the filtered impurities. The processing mechanism 2 includes:

[0025] The filter assembly 21 includes a stirring motor 211 movably mounted on the outside of the outer casing 1. A stirring plate 212 is fixedly mounted at the end of the rotating shaft of the stirring motor 211. A connecting frame 213 is fixedly mounted on the top of the outer casing 1. A water inlet pipe 214 is fixedly mounted above the connecting frame 213. A baffle 215 is fixedly mounted on the inner wall of the outer casing 1. A limiting shaft 216 is movably mounted inside the outer casing 1. A filter screen 217 is sleeved on the outside of the limiting shaft 216. A conveying motor 218 is connected to one side of the limiting shaft 216. One side of the outer casing 1 is fixed... The outer casing 1 is equipped with a flow guide 219, and has a vertical partition inside. The right end of the right wall of the outer casing 1 is an open structure. A drain valve is provided at the bottom of the left end of the outer casing 1. The bottom of the left inner cavity of the outer casing 1 is an inverted triangular structure. The stirring plate 212 is rotatably connected to the outer casing 1. The limiting shaft 216 is rotatably connected to the outer casing 1. The installation height of the left limiting shaft 216 of the outer casing 1 is lower than that of the right side. The filter screen 217 is inclined and sleeved on the outside of the two limiting shafts 216. The conveying motor 218 is fixedly connected to the outer casing 1.

[0026] Specifically, a certain amount of filtered wastewater is contained in the closed inner cavity of the outer shell 1. The stirring motor 211 drives the stirring plate 212 to stir the wastewater, so as to mix the wastewater with the treatment solution. The connecting frame 213 restricts the position of the water inlet pipe 214, and the water inlet pipe 214 restricts the wastewater to be located at the center of the filter screen 217 when it enters the outer shell 1. The conveying motor 218 drives the limiting shaft 216 to rotate, so that the filter screen 217 moves the filtered debris upward inside the outer shell 1, so that the debris falls from the top of the filter screen 217 into the open cavity at the rear of the outer shell 1. The guide shroud 219 can prevent the material from flying out under the action of the cleaning roller 222 during the cleaning of the filter screen 217.

[0027] The cleaning component 22, located inside the housing 1, is used to clean debris stuck inside the filter holes. The cleaning component 22 includes a cleaning motor 221 fixedly installed on one side of the housing 1. A cleaning roller 222 is fixedly installed at the end of the shaft of the cleaning motor 221. The cleaning component 22 also includes an air compressor 223 fixedly installed on one side of the housing 1. An air guide pipe 224 is fixedly installed at the exhaust end of the air compressor 223. A nozzle 225 is fixedly installed at the top of the air guide pipe 224. Bristles are provided on the outer side of the cleaning roller 222. The cleaning roller 222 is located below the top of the filter screen 217. The cleaning roller 222 is rotatably connected to the housing 1. The cleaning roller 222 is located on the open inner cavity side of the housing 1. The air guide pipe 224 passes through the top horizontal structure of the housing 1 and is located between the upper and lower planar structures of the filter screen 217. The nozzles 225 are equidistantly installed below the top horizontal structure of the air guide pipe 224 and are inclined towards the filter screen 217.

[0028] Specifically, the cleaning motor 221 drives the cleaning roller 222 to rotate and clean the filter screen 217. The airflow generated by the air compressor 223 can enter the nozzle 225 through the air guide pipe 224. The airflow is guided by the nozzle 225 to blow onto the filter screen 217, cleaning the inside of the filter screen 217.

[0029] Specifically, the stirring motor 211 and the cleaning motor 221 are of the same model, Y90S-4, the conveying motor 218 is of model Y100L1-4, and the air compressor 223 is of model W-0.6 / 8. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] During operation, wastewater enters the outer casing 1 through the inlet pipe 214. The connecting bracket 213 secures the inlet pipe 214, ensuring that the wastewater falls precisely onto the surface of the filter screen 217. The conveying motor 218 drives the limiting shaft 216 to rotate. Because the installation height on the left side of the limiting shaft 216 is lower than that on the right side, the filter screen 217 is tilted and rotates with the limiting shaft 216, conveying the impurities filtered out of the wastewater to a higher position. The filtered wastewater passes through the filter screen 217 and enters the left inner cavity of the outer casing 1 (the inner casing 1 has vertical partitions separating areas, and the bottom of the left inner cavity has an inverted triangular structure). The stirring motor 211 drives the stirring plate 212 to rotate, mixing the wastewater and the treatment solution in the left inner cavity. The mixed wastewater finally passes through the drain valve at the bottom left end of the outer casing 1. Discharge; when impurities are conveyed to the top with the filter screen 217, the cleaning motor 221 drives the cleaning roller 222 to rotate. The bristles on the outside of the cleaning roller 222 sweep away the impurities remaining on the surface of the filter screen 217. The impurities fall into the open structure on the right side of the outer shell 1 (the right end of the right wall of the outer shell 1 is an open structure). The guide shroud 219 can prevent impurities from splashing during the cleaning process. At the same time, the airflow generated by the air compressor 223 is conveyed to the nozzle 225 through the air guide pipe 224. The air guide pipe 224 passes through the top horizontal structure of the outer shell 1 and is located between the upper and lower planes of the filter screen 217. The nozzles 225 are installed at equal intervals and tilted towards the filter screen 217. The airflow blows away the debris stuck in the filter holes of the filter screen 217, completing the comprehensive cleaning of the filter screen 217.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater filtration and recycling device for pet food production, comprising a housing (1), characterized in that: The outer casing (1) is equipped with a processing mechanism (2) for filtering wastewater and discharging the filtered impurities. The processing mechanism (2) includes: The filter assembly (21) includes a stirring motor (211) movably mounted on the outside of the housing (1), a stirring plate (212) fixedly mounted at the end of the rotating shaft of the stirring motor (211), a connecting frame (213) fixedly mounted on the top of the housing (1), a water inlet pipe (214) fixedly mounted above the connecting frame (213), a baffle (215) fixedly mounted on the inner wall of the housing (1), a limiting shaft (216) movably mounted inside the housing (1), a filter screen (217) sleeved on the outside of the limiting shaft (216), a conveying motor (218) connected to one side of the limiting shaft (216), and a flow guide (219) fixedly mounted on one side of the housing (1). A cleaning component (22) is disposed inside the housing (1) for cleaning debris stuck inside the filter holes.

2. The pet food production wastewater filtration and recovery device according to claim 1, characterized in that: The cleaning assembly (22) includes a cleaning motor (221) fixedly installed on one side of the housing (1), and a cleaning roller (222) fixedly installed at the end of the shaft of the cleaning motor (221). The cleaning assembly (22) also includes an air compressor (223) fixedly installed on one side of the housing (1), and an air guide pipe (224) fixedly installed at the exhaust end of the air compressor (223). A nozzle (225) is fixedly installed at the top of the air guide pipe (224).

3. The pet food production wastewater filtration and recovery device according to claim 1, characterized in that: The interior of the outer shell (1) is provided with a vertical partition. The right end of the right wall of the outer shell (1) is an open structure. The bottom of the left end of the outer shell (1) is provided with a drain valve. The bottom of the left inner cavity of the outer shell (1) is an inverted triangular structure.

4. The pet food production wastewater filtration and recovery device according to claim 1, characterized in that: The stirring plate (212) is rotatably connected to the outer shell (1), the limiting shaft (216) is rotatably connected to the outer shell (1), the installation height of the left limiting shaft (216) of the outer shell (1) is lower than that of the right side, the filter screen (217) is inclined and sleeved on the outside of the two limiting shafts (216), and the conveying motor (218) is fixedly connected to the outer shell (1).

5. The pet food production wastewater filtration and recovery device according to claim 2, characterized in that: The cleaning roller (222) is provided with bristles on its outer side. The cleaning roller (222) is located below the top of the filter screen (217). The cleaning roller (222) is rotatably connected to the outer shell (1). The cleaning roller (222) is located on the open inner cavity side of the outer shell (1).

6. The pet food production wastewater filtration and recovery device according to claim 2, characterized in that: The air guide tube (224) penetrates the top horizontal structure of the outer shell (1) and is located between the upper and lower planar structures of the filter screen (217). The nozzle (225) is installed at equal intervals below the top horizontal structure of the air guide tube (224) and tilts towards the filter screen (217).

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