Kitchen waste resource utilization efficient deodorization purification assembly

Abstract

The utility model relates to a kind of high-efficiency deodorization purification assembly of kitchen waste resource utilization, including receiving tank, the receiving tank upper end front side is equipped with double-shaft crusher, the double-shaft crusher front side upper end is equipped with feed inlet, the double-shaft crusher front end upper side is equipped with feeding assembly, the receiving tank upper side is equipped with negative pressure cover, the negative pressure cover covers double-shaft crusher whole outer side, the negative pressure cover rear end upper side is equipped with centrifugal fan, the centrifugal fan front side is equipped with suction port, the centrifugal fan right side is equipped with gas outlet, the gas outlet flange connects pipeline, the pipeline right side flange connects odor purification tank, the odor purification tank is equipped with three filter plates inside, has when garbage processing source head crushing instant collection odor, greatly guarantee the cleanness of operating environment and personnel health, significantly improve the efficiency and effect of overall deodorization purification advantage.

Description

Technical Field

[0001] This utility model relates to the field of deodorization and purification technology of kitchen waste, and in particular to a high-efficiency deodorization and purification component for the resource utilization of kitchen waste. Background Technology

[0002] Food waste, rich in organic matter and with high moisture content, is prone to decomposition during resource utilization, producing strong odorous gases. The main components are hydrogen sulfide, ammonia, volatile fatty acids, and benzene compounds. Waste deodorization refers to the removal of odorous gases produced by waste decomposition through physical, chemical, or biological methods. These gases include ammonia, hydrogen sulfide, and organic compounds. This odor originates from the aerobic or anaerobic fermentation of organic matter such as fruit peels and leftover food in household waste. High-temperature environments accelerate the production process, and some components may harm the human respiratory and circulatory systems.

[0003] Patent application number CN202321847328.8 is a Chinese utility model patent, disclosing a kitchen waste deodorizing bin, including an outer shell, a bin, and a heating unit. The outer shell includes a body and a lid. The body forms a storage space and an exhaust channel connecting the storage space and the outside of the body. A placement slot is also formed within the storage space. The lid is detachably connected to the body to close or open the storage space. The bin is open and has good thermal conductivity. The shape of the bin matches the placement slot, allowing the bin to be placed inside. The heating unit is embedded within the bin. Inside the placement trough, when the garbage can is placed inside, the heating unit is in contact with the garbage can to heat it. Compared with existing technologies, the food waste deodorizing bin provided by this invention can dry the food waste inside the bin using the heating unit. By reducing the moisture content of the food waste, the time when the food waste begins to decompose is significantly delayed, preventing odors from being produced when the food waste remains in the home, thus improving the living environment. However, this device has the following problems: firstly, it cannot collect odors immediately during crushing; secondly, its deodorization and purification efficiency is poor. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. By using a centrifugal fan to draw air from inside a negative pressure hood through an intake port, a stable negative pressure state is created within the hood. This prevents the odor generated during the crushing process from diffusing outwards and forces it into an odor purification chamber for treatment. This solves the technical problem of the device's inability to collect odors in real time during crushing. Furthermore, the odor purification chamber features a stainless steel primary filter, activated carbon adsorption plate, and catalytic decomposition filter arranged in sequence, forming a staged air purification process that significantly improves overall deodorization efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-efficiency deodorization and purification component for the resource utilization of kitchen waste includes a receiving box. A dual-shaft crusher is installed on the upper front side of the receiving box. A feed inlet is located on the upper front side of the dual-shaft crusher. A feeding assembly is located on the upper front side of the dual-shaft crusher. A negative pressure hood is installed on the upper side of the receiving box, covering the outer side of the dual-shaft crusher. A centrifugal fan is installed on the upper rear side of the negative pressure hood. An air intake is located on the front side of the centrifugal fan. An air outlet is located on the right side of the centrifugal fan. A flange of the air outlet is connected to a pipe. A flange on the right side of the pipe is connected to an odor purification box. The odor purification box contains three filter plates.

[0007] As a preferred embodiment, the negative pressure cover is made of high-strength transparent acrylic, and an installation port is provided at the upper rear side of the negative pressure cover. The installation port is connected to the air intake flange, and the interior of the negative pressure cover is a relatively sealed environment.

[0008] As a preferred embodiment, the feeding assembly includes a feeding frame, with a hinged flap at the rear of the upper end of the feeding frame, and a feeding frame fixedly connected to the lower end of the feeding frame. The feeding frame is fixedly connected to the upper front end of the twin-shaft crusher at the rear. The feeding frame has an internal ramp that slopes downward from the front to the rear of the feeding frame. The rear end of the ramp protrudes from the lower rear end of the feeding frame and extends into the feed inlet.

[0009] As a preferred embodiment, the odor purification box includes a box body, an air inlet is provided on the upper left side of the box body, the air inlet flange is connected to a pipe, an exhaust port is provided on the lower right side of the box body, three fixing grooves are provided on the inner wall of the front side of the box body, and three extraction through holes are provided on the rear side of the box body, the number of extraction through holes corresponding to the positions of the fixing grooves.

[0010] As a preferred embodiment, the filter plate consists of three plates, arranged from left to right inside the housing as a stainless steel primary filter plate, an activated carbon adsorption plate, and a catalytic decomposition filter, which are arranged in parallel inside the housing.

[0011] As another preferred embodiment, the filter plate can be horizontally and detachably inserted into the box body along the front and rear direction of the box body through the extraction through hole and the fixing groove, and the front and rear sides of the filter plate are adapted to the extraction through hole and the fixing groove.

[0012] The beneficial effects of this utility model are:

[0013] (1) In this utility model, a high-strength transparent acrylic negative pressure cover is set outside the twin-shaft crusher to form a relatively closed operating space. The centrifugal fan draws air from inside the negative pressure cover through the air intake port, forming a stable negative pressure state inside the negative pressure cover. This prevents the odor generated during the crushing process from spreading outward, but instead forces it to be guided to the odor purification box for treatment. The odor is collected immediately when the waste is crushed at the source of waste treatment, which greatly ensures the cleanliness of the operating environment and the health of personnel.

[0014] (2) In this utility model, a stainless steel primary filter plate, an activated carbon adsorption plate, and a catalytic decomposition filter are arranged in sequence. After the odor in the negative pressure hood is guided to the odor purification box by a centrifugal fan, the stainless steel primary filter plate first effectively intercepts the impurities and dust in the odor, preventing the impurities and dust in the odor from affecting the filtration process of the activated carbon adsorption plate and the catalytic decomposition filter in the subsequent steps. Then, the activated carbon adsorption plate uses its strong activated carbon adsorption performance to efficiently adsorb the organic volatiles and odor molecules in the waste gas. Finally, the catalytic decomposition filter further decomposes the residual ozone and complex odor molecules into harmless substances through catalysis. Finally, the purified gas is discharged from the exhaust port, which significantly improves the overall deodorization and purification efficiency and effect.

[0015] (3) In this utility model, three filter plates are set and can be pulled out horizontally in the front-back direction through the extraction through hole on the rear side of the box to achieve quick replacement or cleaning. When the filter plate has been used for too long and the filtration efficiency has decreased, it needs to be replaced and repaired. Just pull out the old filter plate through the extraction through hole. To install a new filter plate, just insert the filter plate through the extraction through hole. The front side of the filter plate will be locked into the fixing groove to fix the filter plate. It is convenient, quick and easy and the principle is simple.

[0016] In summary, this device has the advantages of collecting odors in real time during the crushing of waste at the source, which greatly ensures the cleanliness of the operating environment and the health of personnel, and significantly improves the overall efficiency and effect of deodorization and purification. It is especially suitable for the field of deodorization and purification technology for kitchen waste. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0019] Figure 2This is a rear view of the entire device in this utility model, showing the positions of the feed inlet and filter plate.

[0020] Figure 3 This is a schematic diagram of the feeding assembly structure in this utility model.

[0021] Figure 4 This is a schematic diagram of the odor purification box structure in this utility model.

[0022] Figure 5 This is a schematic diagram of the internal structure of the odor purification box in this utility model. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figures 1 to 5As shown, this utility model provides a high-efficiency deodorization and purification component for the resource utilization of kitchen waste, including a receiving box 1. The lower end of the receiving box 1 is provided with a crushed waste discharge port. The bottom of the receiving box 1 is provided with an inclined guide plate, which allows the crushed waste to automatically slide towards the crushed waste discharge port under the action of gravity. The flange of the crushed waste discharge port is connected to an anti-corrosion pipe, through which the crushed waste can be transported to the next process. A dual-shaft crusher 2 is provided on the front side of the upper end of the receiving box 1. The dual-shaft crusher 2 contains two parallel rotating shafts. High-strength alloy steel blades are installed alternately on the shafts. A geared motor is connected to the ends of the two shafts, driving them to rotate in opposite directions. The blades shear and compress the waste. The dual-shaft crusher 2 has a feed inlet 21 at its upper front end and a feeding assembly 3 at its upper front end. A negative pressure hood 5 is located on the upper side of the receiving box 1. The negative pressure hood 5 is a box-shaped structure made of high-strength transparent acrylic material. Its upper rear end has an installation port for connecting to a centrifugal fan 51. The lower side of the negative pressure hood 5 is flexibly sealed to the upper end of the receiving box 1, covering the dual shafts. The crusher 2 forms a relatively sealed internal space around its entire circumference. When the centrifugal fan 51 starts, air is drawn from the negative pressure hood 5 through the suction port 512, creating a negative pressure environment inside. This effectively prevents the odor generated during the crushing process from spreading to the outside. The sealing of the negative pressure hood 5 is achieved through the flexible sealing strip between it and the receiving box 1 and the flange connection structure with the suction port 512 of the centrifugal fan 51. This ensures that during operation, the airflow can only enter the odor purification box 6 through the suction port, improving airtightness and deodorization efficiency. The negative pressure hood 5 covers the dual-shaft crusher. On the outer side of the machine 2, a centrifugal fan 51 is provided on the upper rear end of the negative pressure hood 5. The core of the centrifugal fan 51 is a volute impeller and a motor. The motor drives the impeller to rotate at high speed, and the high-speed rotation of the impeller generates negative pressure, which draws air from inside the negative pressure hood 5 through the air intake 512. The centrifugal fan 51 has an air intake 512 on the front side and an air outlet 511 on the right side. The air outlet 511 is flanged and connected to a pipe 52. The right flange of the pipe 52 is connected to an odor purification box 6. The odor purification box 6 has three filter plates 63 inside.

[0026] Furthermore, the negative pressure cover 5 is made of high-strength transparent acrylic. The negative pressure cover 5 covers the entire circumference of the twin-shaft crusher 2. The upper rear end of the negative pressure cover 5 is provided with an installation port, which is connected to the air intake 512 flange. The interior of the negative pressure cover 5 is a relatively sealed environment.

[0027] Furthermore, the feeding assembly 3 includes a feeding frame 31, with a hinged flap 311 at the rear of the upper end of the feeding frame 31. The flap uses a spring hinge for easy and quick opening, allowing kitchen waste to be fed into the feeding frame 31. When the flap 311 is closed, it forms a temporary sealed space to reduce odor leakage. The lower end of the feeding frame 31 is fixedly connected to a discharge frame 32. The lower part of the feeding frame 31 is hollow and communicates with the interior space of the discharge frame 32, facilitating the entry of the fed waste into the discharge frame 32. The rear side of the discharge frame 32 is fixedly connected to the front end of the twin-shaft crusher 2. The rear space inside the upper part of the feeding frame 32 is empty and communicates with the interior of the twin-shaft crusher 2, forming a garbage disposal opening. The feeding frame 32 is welded to the front end of the twin-shaft crusher 2. The feeding frame 32 has an internal ramp 321 that slopes downward from the front to the rear, facilitating the smooth flow of kitchen waste into the feed inlet 21 of the twin-shaft crusher 2. The rear end of the ramp 321 protrudes from the lower rear end of the feeding frame 32 and extends into the feed inlet 21, further ensuring that the material falls accurately into the crusher and avoids accumulation or blockage.

[0028] Furthermore, the odor purification box 6 includes a box body 61, which is a rectangular box structure. The upper left side of the box body 61 is provided with an air inlet, and the air inlet flange is connected to the pipe 52. The lower right side of the box body 61 is provided with an exhaust port 62. The inner front wall of the box body 61 is provided with three fixing slots 64 for fixing the filter plate 63. The rear side of the box body 61 is provided with three extraction through holes 65. The extraction through holes 65 allow the filter plate 63 to be horizontally inserted or pulled out from the rear side, which is convenient for maintenance and replacement. The number of extraction through holes 65 corresponds to the number of fixing slots 64. The odor drawn in by the centrifugal fan 51 enters the air inlet of the odor purification box 6 through the pipe 52, passes through the stainless steel primary filter plate 631, the activated carbon adsorption plate 632, and the catalytic decomposition filter 633 in sequence, and is finally discharged through the exhaust port 62. This path design ensures that each stage of the filtration components can fully exert its purification function and improve the overall deodorization efficiency.

[0029] Furthermore, the filter plate 63 has three sections, arranged from left to right inside the housing 61: a stainless steel primary filter plate 631, made of 304 stainless steel perforated plate with a pore size of 0.5~1mm, used to intercept large particulate impurities, dust, and oil mist in the odor, preventing them from entering the subsequent adsorption and catalytic layers and affecting the purification effect. This layer is a physical interception layer with a stable structure and is easy to clean. The activated carbon adsorption plate 632 is formed through a physical composite process. It mainly consists of activated carbon particles and a binder, forming a core adsorption layer on a plate with fine pores. Activated carbon has a large specific surface area and adsorption capacity, efficiently adsorbing organic matter and odor components in the odor. Finally, there is a catalytic decomposition filter 633, which uses an aluminum honeycomb plate as a catalyst. The supporting carrier of the agent layer, the catalytic material loaded on the surface of the substrate, such as manganese dioxide catalyst, forms an active layer through treatment, which catalytically oxidizes the residual complex odor molecules, catalyzing the odor molecules into harmless gases. The stainless steel primary filter plate 631, activated carbon adsorption plate 632, and catalytic decomposition filter 633 are arranged in parallel inside the box 61. The filter plates 63 are arranged in sequence to form a three-stage purification system of stainless steel primary filter → activated carbon → catalytic filter, which treats odors step by step, significantly improving deodorization efficiency and purification quality. The structure of each filter plate 63 consists of a frame and a working layer inside the frame. The overall basic structure is consistent. The left and right sides of the rear of the frame are provided with sealing strips. After being inserted through the extraction hole 65, the sealing strips on the left and right sides of the rear of the frame will fit against the left and right sides of the inner wall of the extraction hole 65, realizing the seal between the filter plate 63 and the odor purification box 6, and preventing the odor purification box 6 from leaking odors during operation.

[0030] Furthermore, the filter plate 63 can be horizontally and detachably inserted into the housing 61 along the front-to-back direction of the housing 61 via the extraction through hole 65 and the fixing groove 64. The front and rear sides of the filter plate 63 are adapted to the extraction through hole 65 and the fixing groove 64. The filter plate 63 cooperates with the fixing groove 64 and the rear extraction through hole 65 inside the housing 61. When the filter plate 63 is horizontally inserted from the rear extraction through hole 65, the front side of the filter plate 63 is engaged in the fixing groove 64 to achieve positioning and fixation. At the same time, its rear side can be easily pulled out through the handle to complete the replacement or cleaning operation.

[0031] Working process: First, the operator opens the flip cover 311 of the feeding assembly 3 and puts the kitchen waste into the disposal box 31. The waste slides along the ramp 321 inside the feeding box 32 into the feed inlet 21 of the twin-shaft crusher 2. Then, the twin-shaft crusher 2 starts the twin-shaft blades to crush the waste. At this time, the odor generated by crushing is sealed in a relatively closed space by the high-strength transparent acrylic negative pressure hood 5. At the same time, the centrifugal fan 51 continuously draws air from the negative pressure hood 5 through the air intake 512 to form a stable negative pressure, forcibly removing the odor. The odor is transported through pipe 52 to the air inlet of the odor purification box 6. Then, the odor passes through three parallel filter plates 63 inside the box 61. The stainless steel primary filter plate 631 intercepts large particles and oil mist. The second stage activated carbon adsorption plate 632 uses honeycomb activated carbon to adsorb odor molecules such as hydrogen sulfide and ammonia, as well as volatile organic compounds. The third stage catalytic decomposition filter 633 decomposes the residual odor into harmless gas through a loaded manganese dioxide catalyst. Finally, the purified gas is discharged from the exhaust port 62.

[0032] Secondly, the filter plate 63 has been used for too long, which leads to a decrease in filtration efficiency. When the filter plate 63 needs to be replaced, the staff can directly pull out the old plate horizontally from the extraction through hole 65 on the back of the box 61, insert the new plate and fix it in the fixing groove 64 with its front side, without disassembling the box.

[0033] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0034] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0035] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A high-efficiency deodorization and purification component for the resource utilization of kitchen waste, characterized in that: The device includes a receiving box (1), a twin-shaft crusher (2) is provided on the front side of the upper end of the receiving box (1), a feed inlet (21) is provided on the upper front side of the twin-shaft crusher (2), a feeding assembly (3) is provided on the upper front side of the twin-shaft crusher (2), a negative pressure cover (5) is provided on the upper side of the receiving box (1), the negative pressure cover (5) covers the outer side of the twin-shaft crusher (2), a centrifugal fan (51) is provided on the upper rear side of the negative pressure cover (5), an air intake (512) is provided on the front side of the centrifugal fan (51), an air outlet (511) is provided on the right side of the centrifugal fan (51), a flange connecting pipe (52) is provided on the right side of the pipe (52), and an odor purification box (6) is connected to the right side of the pipe (52), and three filter plates (63) are provided inside the odor purification box (6).

2. The efficient deodorization and purification component for the resource utilization of kitchen waste according to claim 1, characterized in that, The negative pressure cover (5) is made of high-strength transparent acrylic. The upper rear side of the negative pressure cover (5) is provided with an installation port, which is connected to the flange of the air intake (512). The interior of the negative pressure cover (5) is a relatively sealed environment.

3. The efficient deodorization and purification component for the resource utilization of kitchen waste according to claim 1, characterized in that, The feeding assembly (3) includes a feeding frame (31), the upper rear side of the feeding frame (31) is hinged to a flip cover (311), the lower end of the feeding frame (31) is fixedly connected to a feeding frame (32), the rear side of the feeding frame (32) is fixedly connected to the upper front side of the twin-shaft crusher (2), the feeding frame (32) is provided with a ramp (321), the ramp (321) slopes downward from the front side to the rear side inside the feeding frame (32), the rear end of the ramp (321) protrudes from the lower rear side of the feeding frame (32) and simultaneously extends into the feed inlet (21).

4. The efficient deodorization and purification component for the resource utilization of kitchen waste according to claim 1, characterized in that, The odor purification box (6) includes a box body (61), an air inlet is provided on the upper left side of the box body (61), the air inlet flange is connected to the pipe (52), an exhaust port (62) is provided on the lower right side of the box body (61), three fixing grooves (64) are provided on the inner wall of the front side of the box body (61), and three extraction through holes (65) are provided on the rear side of the box body (61), the extraction through holes (65) correspond to the positions and number of fixing grooves (64).

5. The efficient deodorization and purification component for the resource utilization of kitchen waste according to claim 1, characterized in that, The filter plate (63) has three parts, which are arranged from left to right inside the box (61) as a stainless steel primary filter plate (631), an activated carbon adsorption plate (632), and a catalytic decomposition filter (633).

6. The efficient deodorization and purification component for the resource utilization of kitchen waste according to claim 1, characterized in that, The filter plate (63) can be horizontally and detachably inserted into the box (61) along the front and rear direction of the box (61) through the extraction through hole (65) and the fixing groove (64). The front and rear sides of the filter plate (63) are adapted to the extraction through hole (65) and the fixing groove (64).

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