Pretreatment device for removing oily water in kitchen residual food through vibration

Abstract

The utility model discloses a pretreatment device for removing oily water in kitchen residual food through vibration. The pretreatment device comprises a screen box; the sieve plate is horizontally arranged in the sieve box, is used for containing the collected remaining food on the dining table and carrying out oil-water separation treatment on the remaining food, and is provided with a plurality of oil-water passing holes through which the oil-water flows down; the vibration motor is mounted on the screen box and used for vibrating the screen box and food remaining on the dining table in the screen box so as to accelerate separation of oil-containing water; and the discharging baffle is detachably mounted on one side of the screen box and is used for discharging food residues formed after oil-water separation treatment. The pretreatment device for removing the oily water in the kitchen remaining food through vibration is simple in structure, convenient to use, low in energy consumption, clean, environmentally friendly, capable of fully separating the oily water in the remaining food on a dining table, high in separation speed, low in remaining food treatment cost, equipment purchase cost and maintenance cost, and convenient for reutilization of treated food residues.

Description

Technical Field

[0001] This utility model relates to a device for processing leftover food, and more particularly to a pretreatment device for removing oil and water from leftover food in the kitchen through vibration. Background Technology

[0002] With rapid industrial development and population growth, a large amount of leftover food has been generated, especially in canteens and dining halls of enterprises, institutions, hospitals, hotels, and health centers. The problem of leftover food is particularly prominent in these places. Leftover food typically includes meat and vegetables rich in organic matter, animal and vegetable oils, and water, making it very prone to rotting and causing serious environmental pollution. To effectively utilize these leftover foods, they are now often processed into organic fertilizer or animal feed.

[0003] Because leftover food contains a large amount of animal and vegetable oils, these oily liquids must be removed before making fertilizer; otherwise, the quality of organic fertilizer or animal feed will be greatly affected, adversely impacting the land where organic fertilizer is applied or the animals fed with feed. Therefore, most existing technologies for processing leftover food require the removal of the oily liquids.

[0004] Among existing technologies, there are some devices that can perform oil-water separation. For example, the kitchen waste oil separation device developed by the inventor, with Chinese patent number CN101670193B, includes: a tank with a wastewater inlet at the bottom and an oil outlet and a clean water outlet on the side; an oil-water separator installed inside the tank, which is a cylindrical structure with a closed top and an open bottom. The inside of the cylindrical structure forms a first chamber for holding the wastewater to be separated, and the outside of the cylindrical structure forms a second chamber for holding the separated oil and water between the inner wall of the tank; a heating device for heating the tank; a cleaning device for periodically cleaning the oil-water separator inside the tank; and a wastewater supply device for supplying the wastewater to be separated to the first chamber.

[0005] However, the aforementioned equipment is used to separate oil-containing water from dishes and cooking water. Since the oil-containing water in leftover food contains much more oil than the oil-containing water after washing dishes and cooking, directly using the aforementioned equipment to separate the oil-containing water from leftover food would inevitably increase the burden on the kitchen waste oil separation equipment, increase the consumption of oil-collecting filter cartridges, and thus greatly increase the operating cost. Utility Model Content

[0006] The purpose of this invention is to solve the above problems by providing a pretreatment device for removing oil and water from leftover food through vibration. It has a simple structure, is easy to use, consumes little energy, is clean and environmentally friendly, can fully separate oil and water from leftover food at a fast speed, has low cost for leftover food processing and low cost for equipment purchase and maintenance, and facilitates the reuse of processed food residue and subsequent recovery of oil from leftover food.

[0007] To achieve the above-mentioned objectives of this utility model, the pretreatment device for removing oil and water from leftover food using vibration provided by this utility model includes: a sieve box; a sieve plate horizontally installed inside the sieve box for holding the collected leftover food from the dining table and separating the oil and water, with multiple oil and water holes provided on it for allowing the oil and water to flow down; a vibration motor installed on the sieve box for vibrating the sieve box and the leftover food inside to accelerate the separation of the oil and water; and a discharge baffle detachably installed on one side of the sieve box for discharging the food residue formed after the oil and water separation treatment.

[0008] Preferably, the vibrating motor is a forward and reverse rotating vibrating motor installed at the top center of the screen box.

[0009] Preferably, the sieve plate includes a plurality of parallel sieve plates, with oil-water passage holes formed between adjacent sieve plates for allowing oil-containing water to flow down.

[0010] Preferably, the cross-section of the oil-water passage is frustoconical.

[0011] Preferably, the discharge baffle is installed vertically on one side of the screen box.

[0012] Preferably, it also includes a plurality of shock-absorbing components disposed at the bottom of the screen box.

[0013] Preferably, the shock absorption assembly includes: a pair of bases disposed on both sides of the screen box and used for fixing to the ground; at least two pairs of shock absorbers sequentially installed on the corresponding bases along the length extension direction of the pair of bases; and at least two pairs of connecting seats fixedly installed on the outer walls of both sides of the screen box and used for connecting the at least two pairs of shock absorbers.

[0014] Preferably, it also includes a water spray device for providing hot water, located next to the screen box.

[0015] Preferably, it also includes a crushing device located next to the sieve box for crushing long-fiber materials in leftover food containing long fibers.

[0016] Compared with the prior art, the beneficial effects of this utility model are reflected in the following aspects:

[0017] 1. This utility model is a pretreatment device for removing oil and water from leftover food in the kitchen using vibration. It has a simple structure, is easy to use, consumes little energy, is clean and environmentally friendly. It can effectively separate oil and water from leftover food at the table and the separation speed is fast. The cost of leftover food treatment and equipment purchase and maintenance is low, and it is easy to reuse the food residue after treatment.

[0018] 2. This utility model relates to a pretreatment device for removing oil and water from leftover food using vibration. The device uses a sieve plate horizontally installed inside a sieve box to hold collected leftover food and separate it from the oil and water. A vibrating motor capable of forward and reverse rotation vibrates the sieve box and the leftover food, accelerating the separation of oil and water. This results in a fast, efficient, and effective separation of oil and water from leftover food. The resulting food residue has extremely low oil and water content, making it easy to process into organic fertilizer or animal feed and to recycle the separated oil and water. Attached Figure Description

[0019] Figure 1 This is a perspective view of the first structure of the pretreatment device for removing oil and water from leftover food in the kitchen using vibration, according to this utility model.

[0020] Figure 2 This is a schematic diagram of the first structure of a pretreatment device for removing oil and water from leftover food in kitchens using vibration.

[0021] Figure 3 yes Figure 2 The right view;

[0022] Figure 4 yes Figure 2 Top view;

[0023] Figure 5 This is a perspective view of the sieve box;

[0024] Figure 6 This is a half-sectional view of the sieve box;

[0025] Figure 7 This is a schematic diagram of the sieve plate structure;

[0026] Figure 8 yes Figure 7 The left view;

[0027] Figure 9 yes Figure 7 Top view;

[0028] Figure 10 This is a magnified view of a portion of the sieve core in the sieve plate;

[0029] Figure 11 This is a partial schematic diagram of the cross-section of the oil and water passages in the screen core;

[0030] Figure 12 This is the circuit diagram of the forward and reverse rotation of the vibration motor;

[0031] Figure 13 This is a schematic diagram of the second structure of the pretreatment device for removing oil and water from leftover food using vibration.

[0032] Figure 14 This is a schematic diagram of a pretreatment device for removing oil and water from leftover food using vibration, when the third structure is employed.

[0033] Figure 15 This is a schematic diagram of the crushing mechanism. Detailed Implementation

[0034] like Figures 1-4 The diagram shows different structures of the pretreatment device for removing oil and water from leftover food using vibration, as described in the first structure. As shown, the pretreatment device 100 for removing oil and water from leftover food using vibration includes: a sieve box 1; a sieve plate 3 horizontally installed inside the sieve box for holding collected leftover food from the dining table and separating it from oil and water, with multiple oil-water holes for allowing oil and water to flow down; a vibration motor 4 installed on the sieve box for vibrating the sieve box and the leftover food inside to accelerate the separation of oil and water; and a discharge baffle 2 detachably installed on one side of the sieve box for discharging the food residue formed after the oil and water separation process.

[0035] This utility model relates to a pretreatment device for removing oil and water from leftover food using vibration. The device collects leftover food from the dining table and separates the oil and water content by placing it in a sieve plate inside a sieve box. A vibration motor causes the leftover food in the sieve box to vibrate, accelerating the separation of oil and water. This results in fast and effective separation of oil and water from leftover food, with high processing efficiency. Consequently, the oil and water content in the separated food residue is reduced, making it easier to process the food residue into organic fertilizer or animal feed.

[0036] Specifically, the sieve box of this utility model can adopt the following... Figure 5 , Figure 6 The structure shown includes: a pair of symmetrically arranged side plates 101, and the front end of the side plates (e.g., Figure 5 , Figure 6The left end (as shown) extends horizontally outward from the middle to form a protruding plate. The upper part of the side plate is a symmetrical frustum shape, meaning the height of the two sides is lower than the height of the middle position. The bottom slopes downward from the front end to the rear end, extending horizontally to the rear end near the rear end. A crossbeam 104, fixedly connected to the upper part of the pair of side plates at both ends, is used to install a vibration motor. A vertical rear baffle 105 is fixedly connected to the rear end of the pair of side plates. A base plate 108, including an inclined plate and a horizontal plate, is fixedly connected to the rear baffle and the bottom of the pair of side plates respectively. The screen plate and the bottom plate are arranged parallel to each other, and the upper surface of the screen plate is flush with the lower edge of the protruding side plates. The front end of the screen plate extends to the rear end of the protruding plates, and the rear end is fixedly connected to the rear baffle. The discharge plate 110 is fixedly connected to the lower edge of the protruding side plates, and the rear end of the discharge plate is flush with the rear end of the protruding plates. The two sides are fixedly connected to the inner walls of the rear end of the protruding plates, and the bottom is fixedly connected to the upper surface of the rear end of the discharge plate. The front end is close to the rear end face of the U-shaped rubber pad 102, and the two sides are fixed to the inner walls of the two side plates. A U-shaped steel plate 103, extending downwards to the front end of the base plate and fixedly connected to it, is connected to the base plate. The upper portion of the U-shaped steel plate 103, flush with the discharge plate, a pair of side plates, and a rear baffle form a space for accommodating the screen plate. A pair of screen plate pressure strips 106, respectively installed on the inner walls of the pair of side plates and located within the aforementioned space, and multiple steel pipes 107, each fixedly connected to the inner walls of the pair of side plates at both ends, secure the screen plate. The steel pipes are placed below the screen plate to support it. The pressure strips are used to press and fix the sieve plate on both sides. The pressure strips can be fixed to a pair of side plates by bolts or welding. A vertical drain pipe 109 is installed below the horizontal plate of the base plate. The drain pipe connects to the inside of the sieve box (either by penetrating the horizontal plate or by setting a through hole at a corresponding position on the horizontal plate, with the drain pipe fixed below the corresponding position of the through hole). When oily water from leftover food on the table flows through the sieve plate to the bottom of the sieve box, it can flow along the inclined plate to the drain pipe, thereby draining the oily water from the sieve box. The drain pipe can be connected to an oily water collection pipe or device (not shown in the figure) to facilitate the subsequent recycling of the separated oily water.

[0037] In this invention, the discharge baffle is a rectangular plate. To facilitate the detachable installation of the discharge baffle on the rubber pad of the screen box, this invention provides multiple forward-extending hooks 111 on the front end face of the U-shaped rubber pad (see [reference]). Figure 6 Multiple corresponding fasteners 8 are welded onto the discharge baffle (see...) Figure 1During assembly, place the discharge baffle tightly against the rubber pad (the width and height of the discharge baffle should match the width and height of the rubber pad), and connect the two by fastening the buckles to the buckle hooks. The discharge baffle, a pair of protruding plates, and the discharge plate form the discharge port of the sieve box. After the oil and water in the leftover food in the sieve box have been fully separated from the food, remove the discharge baffle, and the food residue that has been separated from the oil and water can be discharged from this discharge port.

[0038] In this invention, the sieve plate is fixedly installed in the placement space of the sieve box, and there is a gap between the sieve plate and the bottom plate of the sieve box. The part of the sieve plate and the U-shaped steel plate located below the discharge plate, the bottom plate and the back baffle form a water storage chamber that can hold the oily water in the leftover food from the table separated by the sieve plate.

[0039] In the design, the sieve plate of this utility model can be adopted as follows: Figures 7-9 The structure shown includes: four steel plates 31, which are connected end to end to form a square support frame, welded to the inner wall of the screen box, or fixed inside the screen box using other methods of existing technology; and multiple stiffening plates 33 (such as...) set inside the support frame to strengthen its strength. Figure 9 The image shows 5 stiffening plates. During assembly, the lower end of the stiffening plates must not extend beyond the lower edge of the screen plate. The screen core 32, whose edge is fixed to the support frame and located above the multiple stiffening plates, is provided with multiple oil-water passage holes for oil-containing water to flow down.

[0040] To prevent the oil and water content in leftover food from passing through the oil and water passage holes of the sieve core from the slow passage speed caused by surface tension, as is common in existing technologies, this utility model's sieve core employs the following... Figure 10 , Figure 11 The structure shown includes a screen core comprising multiple parallel, elongated screen plates 35, with oil-water passage holes 34 formed between adjacent screen plates for allowing oil-containing water to flow down. Furthermore, the screen plates have a frustum-shaped cross-section, and the frustum-shaped screen plates are wider at the top and narrower at the bottom (e.g., ...). Figure 11 As shown in the diagram, this creates a frustum-shaped hole between adjacent screen plates, narrow at the top and wide at the bottom. During manufacturing, multiple screen plates can be arranged in parallel and their ends welded to a support frame. The screen plates are made of non-magnetic, wear-resistant, high-quality stainless steel, with a scratch-free surface and a smooth, undistorted finish after welding.

[0041] In the design, the upper width of the frustum-shaped oil-water passage on the sieve plate is 0.8-1.2mm, preferably 1mm, the cone angle is 11-15 degrees, preferably 13 degrees, and the spacing between adjacent oil-water passages is 1.5-2.5mm, preferably 2mm.

[0042] The oil-water passages on the sieve plate of this invention are frustoconical holes, narrow at the top and wide at the bottom. This significantly accelerates the flow of oil and water from leftover food through the passages, greatly improving the efficiency of oil-water separation from food, thus increasing the processing efficiency of leftover food. When leftover food is poured onto the sieve plate and spread out, gravity causes the oil and water to flow through the oil passages and downwards into the water storage chamber. Therefore, this invention utilizes gravity to naturally separate the oil and water from leftover food, resulting in energy saving, emission reduction, and environmental protection.

[0043] To accelerate the separation of oil and water from leftover food placed on the sieve plate, this invention also includes a vibration component on the upper part of the sieve box that vibrates the sieve box and the leftover food inside. This vibration component can be a vibration motor, with its base fixedly connected to a horizontal beam at the top center of the sieve box via multiple bolts (correspondingly, the horizontal beam has a horizontal connecting seat on its upper surface that connects to the vibration motor base). When the vibration motor operates, it causes the sieve box to vibrate up and down, causing the leftover food inside to vibrate as well, thus separating the oil and water from the food. Alternatively, the vibration component can also use other existing vibration sources, such as a fan assembly. The vibration motor and other vibration components all employ existing technological structures and will not be described in detail here.

[0044] In addition, a shock-absorbing assembly is provided at the bottom of the screen box. This assembly includes: a pair of bases 7, located on both sides of the screen box and extending along its length, for bolting to the ground; at least two pairs of shock-absorbing elements 6, sequentially fixed to the corresponding bases along the length of the pair of bases; and at least two pairs of connecting seats 5, fixedly installed on the outer walls of both sides of the screen box for connecting the at least two pairs of shock-absorbing elements. The shock-absorbing elements can be springs, preferably rubber springs. The connecting seats are U-shaped lug seats, with sidewalls welded to the side plates and horizontally fixed to the top of the shock-absorbing elements. When the vibrating motor operates, the vibration of the motor, combined with the expansion and contraction of the shock-absorbing elements, causes the screen box to vibrate, and the vibration is reduced during this process.

[0045] To prevent leftover food from accumulating excessively on one side (such as the left or right) of the sieve box during operation of a unidirectional rotating vibrating motor, thus preventing the oil and water content in the leftover food from being fully removed and causing imbalance and poor stability of the sieve box, this invention employs a vibrating motor capable of both forward and reverse rotation. The forward and reverse rotation of the vibrating motor can be controlled by a contactor interlock, a reversing switch, a frequency converter, or a PLC.

[0046] This invention enables the vibratory motor to rotate in both forward and reverse directions using any of the methods described above. Below, we will only use the existing technology of using contactor interlock control to control the forward and reverse rotation of the vibratory motor as an example to describe the forward and reverse rotation process of the vibratory motor.

[0047] like Figure 12 As shown, the electrical components controlling the forward and reverse rotation of the vibratory motor mainly include: three buttons SB1, SB2, and SB3; two contactors KM1 and KM2; a thermal relay FR; and two fuses FU1 and FU2. KM1 and KM2 control the forward and reverse rotation of the vibratory motor, respectively, and the thermal relay FR is used to protect the vibratory motor from overload damage caused by excessive leftover food in the sieve box.

[0048] Depend on Figure 12 As can be seen from the main circuit, the three-phase power supply is split into two paths after passing through fuse FU1, which are respectively connected to the main contacts of contactors KM1 and KM2. The phase sequence of the input lines of the main contacts of KM1 and KM2 corresponds one-to-one with the power supply. After the output lines of the two contactor main contacts are interchanged, they are connected in parallel, then connected to the thermal relay FR, and finally connected to the vibratory motor M. When button SB2 is pressed, contactor KM1 is energized and latches itself, the contactor main contacts close, and the vibratory motor is energized and operates. The three-phase power sequence is L1, L2, L3, so the vibratory motor runs in the forward direction. When button SB3 is pressed, contactor KM2 is energized and latches itself, the contactor main contacts close, and the vibratory motor is energized and operates. The three-phase power sequence is L3, L2, L1, so the vibratory motor runs in the reverse direction. When button SB1 is pressed, the vibratory motor stops working.

[0049] Depend on Figure 12 As can be seen from the control circuit, the single-phase 380V is transformed into a safe 36V voltage through a transformer, and then supplies power to the control circuit. The 36V power supply first passes through the thermal relay FR and the stop switch SB1, and then connects to the forward button SB2, the reverse button SB3, and the normally open switches KM1 and KM2, respectively.

[0050] If the forward rotation button SB2 is pressed, power will flow through SB2 and the normally closed contact of KM2 to the KM1 coil. At this time, the KM1 coil is energized, the KM1 main contacts close, and the vibratory motor rotates forward. Simultaneously, the normally open contact of KM1 connects the two ends of SB2 for self-locking, and the normally closed contact of KM1 opens to prevent a short circuit caused by accidentally pressing the reverse rotation button SB3. If the stop button SB1 is pressed, the KM1 coil is de-energized, the KM1 main contacts open, and the vibratory motor stops running. At the same time, the normally open contact of KM1 opens and loses its self-locking function.

[0051] If the reverse button SB3 is pressed, power will flow through SB3 and the normally closed contact of KM1 to the KM2 coil. At this time, the KM2 coil is energized, the KM2 main contacts close, and the vibratory motor reverses direction. Simultaneously, the normally open contact of KM2 connects and locks the terminals of SB3, while the normally closed contact of KM2 opens to prevent a short circuit caused by accidentally pressing the forward button SB2. If the stop button SB1 is pressed, the KM2 coil is de-energized, the KM2 main contacts open, and the vibratory motor stops running. Simultaneously, the normally open contact of KM2 opens and loses its self-locking mechanism.

[0052] Of course, in practical applications, single-phase 380V can also be converted to a safe voltage of 36V without a transformer. Furthermore, the circuit can be improved according to the actual situation so that the vibratory motor can automatically reverse at certain time intervals without the need for manual pressing of buttons. The circuit that enables the vibratory motor to automatically reverse at certain time intervals can be a circuit readily available to those skilled in the art, and will not be described in detail here.

[0053] Below, we will discuss the adoption of Figure 12 The circuit shown describes the process of separating oil and water from leftover food on a dining table using a vibrating motor, vibrating screen box, and screen plate:

[0054] First, pour the leftover food from the table into the sieve box and spread it evenly on the sieve plate;

[0055] Press the forward rotation button SB2, the vibration motor rotates forward, the sieve box will vibrate up and down and drive the leftover food in it to vibrate on the sieve plate. The oil and water in the leftover food will pass through the oil holes of the sieve plate under its own gravity and the combined action of the vibration motor, and flow downward into the water storage chamber at the bottom of the sieve box.

[0056] During the process of the leftover food on the table vibrating with the vibrating motor, the operator should constantly observe the position of the leftover food on the screen plate. If the leftover food is found to move and accumulate to one side of the screen box (such as the left side near the discharge baffle) under the vibration of the vibrating motor, the operator should press the stop button SB1 to stop the vibrating motor. Then, press the reverse button SB3 to reverse the vibrating motor so that the leftover food moves to the other side of the screen box (such as the right side away from the discharge baffle) under the vibration of the vibrating motor.

[0057] Oily water flowing through the oil holes in the sieve plate into the water storage chamber will flow along the inclined plate at the bottom of the sieve box towards the drain pipe, thus being discharged to the subsequent oily water treatment device through the drain pipe. After the oily water from the leftover food on the sieve plate has been fully removed, the discharge baffle is removed, and the food residue formed after the oily water removal will be discharged from the discharge port.

[0058] Furthermore, to prevent the collected food waste from solidifying or adhering excessively to the food waste due to prolonged storage and / or low temperature, thus hindering the flow of oil through the sieve holes, this utility model's pretreatment device for removing oil and water from food waste through vibration, based on the above structure, also includes a water spray device 400 providing hot water next to the sieve box. The pipe of the water spray device can extend above the sieve box (e.g., ...). Figure 13 As shown in the diagram, a water nozzle with an adjustable spray direction is installed at the end of the pipe. Hot water at a certain temperature (e.g., 20 to 50°C) is supplied to the sieve box via a spray device, which accelerates the separation of oil and water from leftover food, ensuring thorough removal of these substances. The water nozzle can be designed similarly to a showerhead, allowing for adjustment of the spray direction towards the leftover food as needed.

[0059] When the pretreatment device for removing oil and water from kitchen waste using vibration has a water spraying device, the collected kitchen waste is first poured into a sieve box and spread evenly on a sieve plate. Then, hot water is sprayed onto the kitchen waste through the water spraying device to fully melt the grease on the kitchen waste. Then, under the combined action of gravity and the vibration motor, the oil and water from the kitchen waste flows fully and quickly through the oil holes of the sieve plate into the water storage chamber located below the sieve plate, and is discharged through the drain pipe.

[0060] In addition, sometimes leftover food contains a lot of long fibers. Because oil is viscous, a large amount of oil and water will adhere to the food containing these fibers. If such leftover food is placed directly on a sieve, the oil and water will have difficulty separating from the food and passing through the oil and water holes in the sieve. To solve this problem, such as... Figure 14 As shown, the pretreatment device for removing oil and water from leftover food using vibration according to this utility model also includes a crushing device 200 located next to the sieve box. The crushing device crushes the long fiber material in the leftover food containing long fibers, and the crushed material is then transported into the sieve box through a downwardly inclined conveying pipe 300.

[0061] In this embodiment, the crushing device 200 can be adopted as follows: Figure 15 The structure shown includes a frame, within which a crushing mechanism is provided. The crushing mechanism has a feed inlet 221 located at the upper part of one end and a discharge outlet 222 located at the lower part of the other end. At least one set of crushing and conveying blades is provided between the feed inlet 221 and the discharge outlet 222 to crush and process leftover food containing long fibers, thereby moving the crushed material from the feed inlet to the discharge outlet. The discharge outlet is fixedly connected to one end of a conveying pipe.

[0062] Specifically, the crushing mechanism includes a crushing and conveying cylinder 202 and a crushing and conveying mechanism 203 housed within the crushing and conveying cylinder 202. The crushing and conveying cylinder is horizontally mounted on the frame, meaning its axis is parallel to the ground. One end of the crushing and conveying cylinder has a feed inlet at the top, and the other end has a discharge outlet at the bottom. A pusher is located on the upper part of the frame, and a guide plate at a certain angle to the horizontal plane is installed between the pusher and the feed inlet to facilitate feeding. Leftover food containing long fibers is fed into the feed inlet through the pusher along the guide plate and then into the crushing and conveying cylinder. After being gradually crushed by the crushing and conveying mechanism, it is pushed to the discharge outlet and then fed into the screen box through a conveying pipe.

[0063] The crushing and conveying mechanism includes a rotating shaft 232 and at least one set of crushing and conveying cutters mounted along the rotating shaft 232. The two ends of the rotating shaft are rotatably supported within the crushing and conveying cylinder by bearings, and are driven to rotate by a drive mechanism 204 mounted within the frame. The drive mechanism includes: a pair of pulleys 241 respectively connected to the rotating shaft and the motor shaft; a belt connecting the pair of pulleys; and a motor 242 driving the pair of pulleys to rotate. When the motor rotates, it drives the rotating shaft to rotate via the pair of pulleys, thereby driving the crushing and conveying cutters to rotate, in order to crush long-fiber materials in leftover food.

[0064] At least one set of crushing and conveying cutters is alternately arranged along the axial and circumferential directions on a rotating shaft. Each set of crushing and conveying cutters includes at least three crushing blades. Several crushing blades are sequentially mounted and fixed on the rotating shaft, and their installation orientation is changed sequentially along the circumferential direction of the rotating shaft so as to form a spiral channel that allows the material to move forward along a spiral trajectory when the crushing blades rotate. When the drive mechanism drives the rotating shaft to rotate via a pulley, the rotating shaft drives these crushing blades to rotate, gradually crushing the long-fiber leftover food received from the feed inlet while pushing it to the discharge outlet.

[0065] The crushing and conveying cutter in this embodiment can adopt the structure of existing technology, which will not be described in detail here.

[0066] During the design phase, the discharge port of the crushing device is positioned a certain distance above the upper surface of the screen box, allowing the inclined conveying pipe to smoothly feed the crushed material from the discharge port onto the screen plate of the screen box, thus facilitating the removal of oil and water. In practical application, the decision to use a crushing device depends on the amount of long-fiber material present in the leftover food.

[0067] When the pretreatment device for removing oil and water from kitchen waste has a crushing device, before spreading the leftover food on the sieve plate, the leftover food containing long fibers is first poured into the feed inlet of the crushing device. The crushing mechanism crushes it into crushed material of about 1cm. The crushed material is then transported to the sieve box through the conveying pipe. Then, the oil and water are removed through the above operation.

[0068] Although the present invention has been described in detail above, it is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. A pretreatment device for removing oil and water from leftover food in kitchens using vibration, characterized in that, include: Screen box; A sieve plate installed horizontally inside a sieve box is used to hold the collected leftover food from the table and to separate the oil and water content of it. It is provided with multiple oil and water passage holes for the oil and water content to flow down. A vibrating motor installed on the sieve box for vibrating the sieve box and the leftover food on the table inside to accelerate the separation of oil and water; A detachable discharge baffle is installed on one side of the sieve box to discharge food residue formed after oil-water separation treatment.

2. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 1, characterized in that, The vibrating motor is a rotating motor that is installed at the top center of the screen box and can rotate in both forward and reverse directions.

3. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 2, characterized in that, The sieve plate includes multiple parallel sieve plates, with oil-water passage holes formed between adjacent sieve plates for allowing oil-containing water to flow down.

4. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 3, characterized in that, The cross-section of the oil-water passage is frustoconical.

5. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 4, characterized in that, The discharge baffle is installed vertically on one side of the screen box.

6. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 5, characterized in that, It also includes multiple shock-absorbing components installed at the bottom of the screen box.

7. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 6, characterized in that, The shock absorption components include: A pair of bases are disposed on both sides of the sieve box and used to fix it to the ground; At least two pairs of shock absorbers are sequentially installed on the corresponding bases along the length extension direction of a pair of bases; At least two pairs of connecting seats are fixedly installed on the outer walls on both sides of the screen box and are used to connect the at least two pairs of shock absorbers.

8. The pretreatment device for removing oil and water from leftover food in kitchens using vibration according to claim 7, characterized in that, It also includes a water spray device installed next to the screen box for providing hot water.

9. The pretreatment device for removing oil and water from leftover food in kitchens by vibration according to any one of claims 1-8, characterized in that, It also includes a crushing device located next to the sieve box for crushing long-fiber materials in leftover food containing long fibers.

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