Deodorization device for kitchen waste

Abstract

The utility model relates to the technical field of kitchen waste treatment equipment, and provides a deodorization device for kitchen waste, which aims at solving the problems that the existing kitchen waste deodorization device cannot effectively remove all odor components and is low in odor purification efficiency, and comprises a waste treatment box and an odor purification box which are communicated through an exhaust pipe. A spraying assembly used for spraying a liquid deodorant and an extrusion assembly used for solid-liquid separation are arranged at the inner top of the garbage treatment box; the inner cavity frame is provided with a filter plate for filtering waste liquid; the outer wall face is further provided with a feeding and discharging assembly used for feeding and taking out garbage and discharging bio-enzyme through waste liquid, and the outer wall face is sleeved with an electric heating sleeve used for drying solid garbage. A photocatalysis assembly and an activated carbon deodorization assembly which are used for removing odor are erected in an inner cavity of the odor purification box; the top is communicated with an exhaust pipe. According to the device, solid, liquid and gas three-phase separation treatment of kitchen waste treatment is achieved, multiple deodorization technologies are combined, the odor purification efficiency is high, and the purification effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of restaurant and kitchen waste processing equipment, and in particular to a deodorizing device for restaurant and kitchen waste. Background Art

[0002] Food waste is the waste generated by consumers during their daily lives, including restaurant waste and kitchen waste. The former comes from restaurant and hotel kitchens, while the latter comes from household kitchens. Food waste is high in water, organic matter, and oil, making it prone to decay and emitting a foul odor. Directly discharging this odor into the atmosphere can cause air pollution and pose a serious health risk. Therefore, specialized deodorization equipment is required for food waste disposal.

[0003] For example, patent publication number CN220678927U discloses a kitchen waste deodorizing device comprising a deodorizing box, a sewage pipe connected to the bottom of the left side of the deodorizing box, an inlet opening formed on the front inner wall of the deodorizing box near the top, a first swing door formed on the front side surface of the deodorizing box near the inlet opening, a discharge opening formed on the front inner wall of the deodorizing box below the inlet opening, and a second swing door formed on the front side surface of the deodorizing box near the discharge opening. The sewage pipe, discharge opening, second swing door, collection box, electric push rod, push plate, cover plate, compressor, compression plate, and heating pipe effectively solve the problem that current kitchen waste deodorizing devices cannot effectively deodorize the interior of accumulated kitchen waste. Due to the inability to fully deodorize, the accumulated kitchen waste still carries a foul odor and contains a large amount of foul-smelling water when transported by garbage trucks. However, the kitchen waste deodorizing device only deodorizes by drying, and cannot effectively remove all odor components in actual applications. There are still problems of high energy consumption and low odor purification efficiency.

[0004] Therefore, there is an urgent need to provide a deodorizing device for kitchen waste with high odor purification efficiency and good purification effect. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of existing kitchen waste deodorization devices that cannot effectively remove all odor components, have high energy consumption and low odor purification efficiency. This application provides a kitchen waste deodorization device that can achieve the technical effect of high odor purification efficiency and good purification effect.

[0006] The utility model is achieved through the following technical solutions: a deodorizing device for kitchen waste, comprising a garbage disposal box and an odor purification box, the top of the garbage disposal box and the bottom of the odor purification box are connected by an exhaust pipe, and the exhaust pipe is equipped with an exhaust pump; a spray assembly and an extrusion assembly are provided on the inner top of the garbage disposal box, a filter plate is provided in the inner cavity of the garbage disposal box, and an inlet and outlet assembly is provided on the side wall of the garbage disposal box; an electric heating jacket is further provided on the outer wall of the garbage disposal box, and the electric heating jacket is provided between the extrusion assembly and the inlet and outlet assembly; a photocatalytic assembly and an activated carbon deodorizing assembly are provided in the inner cavity of the odor purification box from bottom to top, the top of the odor purification box is connected with an exhaust pipe, and the exhaust pipe is equipped with an exhaust valve.

[0007] Preferably, the photocatalytic component includes a photocatalyst filler and a plurality of ultraviolet lamps, the photocatalyst filler is provided with a first placement box, the first placement box is mounted on the inner cavity of the odor purification box, the first placement box is a porous structure, and the photocatalyst filler is filled in the first placement box; the plurality of ultraviolet lamps are all installed on the inner side wall of the odor purification box, and the plurality of ultraviolet lamps are respectively arranged above the first placement box and below the first placement box.

[0008] Preferably, the activated carbon deodorizing component includes at least two groups of activated carbon deodorants, and each of the multiple groups of activated carbon deodorants is provided with a second placement box, which is mounted in the inner cavity of the odor purification box. The second placement box is a porous structure, and the multiple groups of activated carbon deodorants are respectively filled in multiple second placement boxes.

[0009] Preferably, a plurality of openings are provided on the side wall of the odor purification box, and the plurality of openings are respectively provided at the first placement box and the second placement box, and transparent doors are hinged at the plurality of openings.

[0010] Preferably, the first placement box and the second placement box each include a placement box body and a box cover, the placement box body is rectangular, a placement slot is provided on the top of the placement box body, both ends of the placement box body are detachably connected to the two inner side walls of the odor purification box, the box cover is hinged to the top of the placement box body, and a plurality of first through holes are provided on the box cover and the placement box body.

[0011] Preferably, the spray assembly includes a spray pipe and multiple spray heads, the spray pipe is installed on the inner top of the garbage disposal box, and the multiple spray heads are installed on the spray pipe at equal intervals, and the water outlets of the multiple spray heads all face the inner bottom of the garbage disposal box; the water inlet end of the spray pipe passes through the side wall of the garbage disposal box, and the water inlet end of the spray pipe is provided with a liquid inlet valve; and also includes a controller, which is electrically connected to the vacuum pump, the electric heating jacket, the exhaust valve, the multiple spray heads, and the liquid inlet valve respectively.

[0012] Preferably, the extrusion assembly includes an extrusion plate, which is movably mounted in the inner cavity of the garbage disposal box and is provided with a plurality of second through holes.

[0013] Preferably, the extrusion assembly also includes a telescopic rod, which is equipped with a motor. The motor is installed on the outer top of the garbage disposal box. One end of the telescopic rod is detachably connected to the through-shaft of the motor, and the other end of the telescopic rod is detachably connected to the side of the extrusion plate facing the inner top of the garbage disposal box. The motor is electrically connected to the controller.

[0014] Preferably, the side wall of the garbage disposal box is provided with an inlet and outlet, the bottom of the inlet and outlet is flush with the bottom of the filter plate, the inlet and outlet assembly includes a box door, the box door is hinged at the inlet and outlet, and the box door is used to open or close the inlet and outlet; the inlet and outlet assembly also includes a drain pipe, the inlet end of the drain pipe is connected to the side wall of the garbage disposal box, the middle section of the drain pipe is provided with a drain valve, and the drain valve is electrically connected to the controller.

[0015] Preferably, the side wall of the garbage disposal box is also provided with a feeding port, which is arranged below the filter plate. The inlet and outlet assembly includes a door, which is hinged at the feeding port and is used to open or close the feeding port.

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] (1) By opening the door of the inlet and outlet assembly, the kitchen waste is placed into the waste disposal box through the inlet and outlet ports. The controller opens the liquid inlet valve, allowing the liquid deodorant to be sprayed downward through the spray pipe and spray head of the spray assembly for deodorization. The multiple drainage holes opened in the filter plate can be used for solid-liquid separation, and the controller controls the motor to drive the telescopic rod to extend, so that the extrusion plate in the extrusion assembly can squeeze out the residual waste liquid in the waste. The controller controls the vacuum pump to pump the odor in the waste disposal box to the bottom of the odor purification box for gas separation.

[0018] (2) By opening the door in the inlet and outlet components, biological enzymes can be added from the feed port to contact the waste liquid, further decomposing the organic matter and odor sources in the waste liquid; the solid waste after squeezing can be dried by the electric heating jacket to remove moisture, reduce the possibility of subsequent decay and fermentation, and thus reduce the generation of odor and harmful gases; the photocatalytic filler and multiple ultraviolet lamps in the photocatalytic component react with odor molecules to deodorize, and then multiple groups of activated carbon deodorizers can be used to adsorb different types of odor molecules for deodorization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a partial cross-sectional structural diagram of the deodorizing device in Example 1;

[0021] Figure 2 Schematic diagram of the cross-sectional structure of the first placement box and the second placement box in Example 1;

[0022] Figure 3 Schematic diagram of the electrical connection relationship of the deodorizing device in Example 1.

[0023] Figure 1: Garbage disposal box, 1a: Inlet and outlet, 1b: Feeding port, 2: Odor purification box, 2a: Opening, 3: Suction pipe, 4: Suction pump, 5: Spray assembly, 51: Spray pipe, 52: Spray head, 53: Inlet valve, 6: Extrusion assembly, 61: Extrusion plate, 61a: Second through hole, 62: Telescopic rod, 63: Motor, 7: Filter plate, 7a: Drain hole, 8: Inlet and outlet assembly, 81: Box door, 82: Drain pipe, 83: Drain valve, 84: Warehouse door, 9-electric heating jacket, 10-photocatalytic component, 101-photocatalyst filler, 102-ultraviolet lamp, 103-first placement box, 1031-placement box body, 1032-box cover, 103a-placement groove, 103b-first through hole, 11-activated carbon deodorization component, 111-activated carbon deodorant, 112-second placement box, 12-exhaust pipe, 13-exhaust valve, 14-transparent door, 15-controller, 16-power supply, 17-temperature sensor, 18-liquid level meter. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] Example 1

[0028] like Figures 1 to 3 As shown, this embodiment provides a deodorizing device for kitchen waste, comprising a waste disposal box 1 and an odor purification box 2. The top of the waste disposal box 1 and the bottom of the odor purification box 2 are connected by an exhaust pipe 3, and the exhaust pipe 3 is equipped with an exhaust pump 4. When the exhaust pump 4 is activated, the odor in the waste disposal box 1 can be sucked into the odor purification box 2 through the exhaust pipe 3 for purification. The top of the waste disposal box 1 is provided with a spray assembly 5 for spraying liquid deodorant and an extrusion assembly 6 for solid-liquid separation. The inner cavity of the waste disposal box 1 is provided with a filter plate 7 for filtering waste liquid. The side wall of the waste disposal box 1 is provided with an inlet and outlet assembly 8. The inlet and outlet assembly 8 is used for inputting and removing waste, feeding bio-enzymes, and discharging waste liquid. The outer wall of the waste disposal box 1 is also provided with an electric heating jacket 9 for drying solid waste. The electric heating jacket 9 is provided between the extrusion assembly 6 and the inlet and outlet assembly 8. The inner cavity of the odor purification box 2 is provided with a photocatalytic component 10 and an activated carbon deodorizing component 11 for removing odor from bottom to top. The top of the odor purification box 2 is connected to an exhaust pipe 12, and the exhaust pipe 12 is equipped with an exhaust valve 13.

[0029] This device realizes the solid, liquid and gas three-phase separation treatment of restaurant kitchen waste, combines multiple deodorization technologies, has high odor purification efficiency and good purification effect, and can avoid the restaurant kitchen waste being accompanied by bad odor during subsequent transportation, causing environmental pollution and endangering human health.

[0030] In this embodiment, the photocatalytic assembly 10 includes a photocatalyst packing 101 and multiple UV lamps 102. A first placement box 103, housing the photocatalyst packing 101, is mounted within the inner cavity of the odor purification chamber 2. The first placement box 103 is porous and filled with the photocatalyst packing 101. Multiple UV lamps 102 are mounted on the inner sidewalls of the odor purification chamber 2, positioned above and below the first placement box 103. The UV lamps 102 illuminate and excite the photocatalyst packing 101 within the first placement box 103, generating reactive oxygen species that react with odor molecules, achieving a deodorizing effect. The porous structure of the first placement box 103 increases the contact area between the photocatalyst packing 101 and odor, improving odor purification efficiency.

[0031] In this embodiment, the activated carbon deodorization assembly 11 includes at least two sets of activated carbon deodorizers 111. Second storage boxes 112, each housing multiple sets of activated carbon deodorizers 111, are mounted within the interior of the odor purification chamber 2. The second storage boxes 112 are porous, and the multiple sets of activated carbon deodorizers 111 are each filled within the multiple second storage boxes 112. The multiple sets of activated carbon deodorizers 111 can utilize activated carbon with varying pore sizes and surface properties. These multiple sets of activated carbon deodorizers 111 can adsorb different types of odor molecules, enhancing odor removal and improving deodorization efficiency. Furthermore, by providing multiple sets of activated carbon deodorizers 111, they can be rotated for use, extending the lifespan of each set of activated carbon deodorizers 111.

[0032] In this embodiment, the sidewall of the odor purification box 2 includes multiple openings 2a, each located in the first placement box 103 and the second placement box 112. Each opening 2a is hingedly connected to a transparent door 14. Through the transparent door 14, changes in the color and shape of the photocatalytic filler and activated carbon deodorizer 111 can be easily observed to determine if they have deteriorated and need replacement.

[0033] For example, fresh photocatalytic fillers typically have a specific color (such as white or light colors). If the filler's color becomes dull, yellow, or undergoes other color changes, it may be a sign of deterioration. If the filler's surface has obvious dirt, sediment, or lumps, its photocatalytic performance may be affected. Fresh activated carbon is typically black. If gray, white, or other colored spots appear on the surface of the activated carbon, it may be a sign of moisture or contamination. If the activated carbon particles become damp, clumped, or deformed, this may be due to deterioration caused by moisture absorption or other environmental factors.

[0034] In this embodiment, both the first and second storage boxes 103 and 112 include a box body 1031 and a lid 1032. The box body 1031 is rectangular, with a placement slot 103a defined at the top for receiving the photocatalyst filler 101 or activated carbon deodorant 111. The ends of the box body 1031 are welded to the inner sidewalls of the odor purification chamber 2. The lid 1032 is hingedly connected to the top of the box body 1031. Both the lid 1032 and the box body 1031 are provided with a plurality of first through-holes 103b. These through-holes increase the contact area between the photocatalyst filler 101 or activated carbon deodorant 111 and odor molecules, and facilitate observation of deterioration of the catalyst filler or activated carbon deodorant 111. To replace the photocatalyst filler 101 or activated carbon deodorant 111, simply open the corresponding transparent door 14 and the corresponding lid 1032.

[0035] In this embodiment, the spray assembly 5 includes a spray pipe 51 and multiple spray heads 52. The spray pipe 51 is installed on the inner top of the garbage disposal box 1, and the multiple spray heads 52 are installed at equal intervals on the spray pipe 51. The water outlets of the multiple spray heads 52 all face the inner bottom of the garbage disposal box 1. The water inlet end of the spray pipe 51 passes through the side wall of the garbage disposal box 1, and the water inlet end of the spray pipe 51 is equipped with a liquid inlet valve 53. The water inlet end of the spray pipe 51 is connected to an external device containing a liquid deodorant, and the multiple spray heads 52 spray the liquid deodorant downward to deodorize the food waste. After the entire deodorization process is completed, the water inlet end of the spray pipe 51 can also be connected to an external water source, and the multiple spray heads 52 spray clean water downward to rinse the garbage disposal box 1 and the filter plate 7 inside the garbage disposal box 1.

[0036] The device further includes a controller 15, which is electrically connected to the vacuum pump 4, the electric heating jacket 9, the exhaust valve 13, the multiple spray heads 52, and the liquid inlet valve 53. The opening and closing of the vacuum pump 4, the electric heating jacket 9, the exhaust valve 13, the multiple spray heads 52, and the liquid inlet valve 53 are all controlled by the controller 15. The controller 15 is a commercially available single-chip microcomputer with an analog / digital converter (ADC). The device further includes a power supply 16, which is electrically connected to the controller 15, the vacuum pump 4, the electric heating jacket 9, the exhaust valve 13, the multiple spray heads 52, and the liquid inlet valve 53. The power supply 16 can be a common commercially available mobile power supply.

[0037] In this embodiment, the extrusion assembly 6 includes an extrusion plate 61, which is movably mounted in the inner cavity of the garbage disposal box 1. The extrusion plate 61 moves downward to squeeze the food waste to achieve solid-liquid separation. The initial position of the extrusion plate 61 is below the spray head 52 and the vacuum pump 4. The extrusion plate 61 is provided with a plurality of second through holes 61a so that the extrusion plate 61 will not affect the spraying or the odor extraction.

[0038] In this embodiment, the squeezing assembly 6 further includes a telescopic rod 62, which is equipped with a motor 63 mounted on the outer top of the waste disposal bin 1. One end of the telescopic rod 62 is connected to the through-shaft of the motor 63, and the other end of the telescopic rod 62 is screwed to the surface of the squeezing plate 61 facing the inner top of the waste disposal bin 1. The motor 63 is electrically connected to the controller 15 and the power supply 16, respectively. The extension of the telescopic rod 62 by the motor 63 causes the squeezing plate 61 to squeeze the waste, and the retraction of the telescopic rod 62 by the motor 63 causes the squeezing plate 61 to return to its original position, providing convenient operation.

[0039] In this embodiment, the sidewall of the waste disposal bin 1 is provided with an inlet and outlet port 1a, the bottom of which is flush with the bottom of the filter plate 7. An inlet and outlet assembly 8 includes a door 81 hingedly connected to the inlet and outlet port 1a. Door 81 is used to open and close the inlet and outlet port 1a, thereby facilitating the insertion of food waste or the removal of processed solid waste. The inlet and outlet assembly 8 also includes a drain pipe 82, the inlet of which is connected to the sidewall of the waste disposal bin 1. A drain valve 83 disposed in the middle of the drain pipe 82 is electrically connected to the controller 15 and the power supply 16, respectively. After the waste liquid undergoes enzyme treatment, the drain valve 83 is opened by the controller 15, allowing the treated waste liquid to be discharged through the drain pipe 82.

[0040] In this embodiment, a feeding port 1b is also provided on the side wall of the garbage disposal box 1, and the feeding port 1b is arranged below the filter plate 7. The inlet and outlet assembly 8 includes a door 84 hinged at the feeding port 1b, and the door 84 is used to open or close the feeding port 1b.

[0041] In this embodiment, the sidewalls of the waste disposal bin 1 are also provided with a temperature sensor 17 and a liquid level gauge 18. The temperature sensor 17 is mounted on the top side of the waste disposal bin 1, away from the water inlet end of the spray pipe 51. The liquid level gauge 18 is mounted below the filter plate 7. The temperature sensor 17 is electrically connected to the controller 15 and the power supply 16, respectively; the liquid level gauge 18 is electrically connected to the controller 15 and the power supply 16, respectively. The temperature sensor 17 and the controller 15 cooperate to conveniently adjust the temperature within the waste disposal bin 1. The liquid level gauge 18 and the controller 15 cooperate to conveniently control the opening and closing of the liquid inlet valve 53 and the liquid outlet valve 83, thereby preventing the waste liquid within the waste disposal bin 1 from exceeding the filter plate 7.

[0042] The specific working process of this deodorizing device for kitchen waste:

[0043] S1: Open the box door 81 and put the food waste into the garbage disposal box 1 through the inlet and outlet 1a.

[0044] S2: Controller 15 opens liquid inlet valve 53, allowing liquid deodorant to flow through spray pipe 51. Then, spray head 52 mounted on spray pipe 51 sprays deodorant downward. The waste liquid flows downward through multiple drainage holes 7a formed in filter plate 7 to below the filter plate 7. The sprayed liquid deodorant mixes with liquid components in the waste, such as juice and grease, thereby diluting these liquids, reducing their viscosity, and preventing clogging of filter plate 7.

[0045] S2: The residual waste liquid in the garbage is squeezed out by the squeezing component 6, and the residual waste liquid flows downward to below the filter plate 7 through the multiple drainage holes 7a opened in the filter plate 7. The squeezing component 6 and the filter plate 7 can achieve solid-liquid separation.

[0046] S3: Open the door 84 and add biological enzymes from the feeding port 1b. The waste liquid contacts the biological enzymes to further decompose organic matter and odor sources.

[0047] S4: Controller 15 activates the electric heating jacket 9 to dry the solid waste above the filter plate 7. Simultaneously, the vacuum pump 4 continuously extracts air into the odor purification chamber 2 for purification. The waste disposal chamber 1 is made of a heat-conductive metal material with excellent thermal conductivity. A temperature sensor 17 monitors the temperature inside the waste disposal chamber 1 in real time. Controller 15 controls the operation of the electric heating jacket 9 to facilitate temperature control.

[0048] S5: Odors extracted by the vacuum pump 4 first reach the bottom of the odor purification chamber 2 and then gradually rise to contact the photocatalytic assembly 10 and activated carbon deodorization assembly 11 for deodorization. The UV lamp 102 in the photocatalytic assembly 10 excites the photocatalytic filler 101 to produce active oxygen species, which in turn decompose the odor molecules. The multiple activated carbon deodorization assemblies 11 utilize the adsorption capacity of the activated carbon to remove odor molecules.

[0049] S6: After deodorization, the exhaust valve 13 and the drain valve 83 are opened through the controller 15, the purified gas is discharged through the exhaust pipe 12, and the treated waste liquid is discharged through the drain pipe 82, then the power supply 16 is turned off, the box door 81 is opened, and the solid waste is taken out through the inlet and outlet 1a.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A deodorizing device for kitchen waste, characterized in that: It comprises a garbage disposal box (1) and an odor purification box (2), wherein the top of the garbage disposal box (1) and the bottom of the odor purification box (2) are connected via an air extraction pipe (3), and the air extraction pipe (3) is equipped with an air extraction pump (4); The inner top of the garbage disposal box (1) is provided with a spray assembly (5) and an extrusion assembly (6), the inner cavity of the garbage disposal box (1) is provided with a filter plate (7), and the side wall of the garbage disposal box (1) is provided with an inlet and outlet assembly (8); The outer wall surface of the garbage disposal box (1) is also provided with an electric heating jacket (9), and the electric heating jacket (9) is arranged between the extrusion assembly (6) and the inlet and outlet assembly (8); The inner cavity of the odor purification box (2) is provided with a photocatalytic component (10) and an activated carbon deodorization component (11) in sequence from bottom to top, and the top of the odor purification box (2) is connected to an exhaust pipe (12), and the exhaust pipe (12) is provided with an exhaust valve (13).

2. The deodorizing device for kitchen waste according to claim 1, characterized in that: The photocatalytic component (10) comprises a photocatalyst filler (101) and a plurality of ultraviolet lamps (102); the photocatalyst filler (101) is provided with a first placement box (103); the first placement box (103) is mounted in the inner cavity of the odor purification box (2); the first placement box (103) is a porous structure; the photocatalyst filler (101) is filled in the first placement box (103); The plurality of ultraviolet lamps (102) are all installed on the inner wall of the odor purification box (2), and the plurality of ultraviolet lamps (102) are respectively arranged above the first placement box (103) and below the first placement box (103).

3. The deodorizing device for kitchen waste according to claim 2, characterized in that: The activated carbon deodorizing component (11) comprises at least two groups of activated carbon deodorants (111), and each of the multiple groups of activated carbon deodorants (111) is provided with a second placement box (112). The second placement box (112) is mounted in the inner cavity of the odor purification box (2). The second placement box (112) is a porous structure, and the multiple groups of activated carbon deodorants (111) are respectively filled in the multiple second placement boxes (112).

4. The deodorizing device for kitchen waste according to claim 3, characterized in that: The side wall of the odor purification box (2) is provided with a plurality of openings (2a), which are respectively arranged at the first placement box (103) and the second placement box (112), and transparent doors (14) are hinged at the plurality of openings (2a).

5. The deodorizing device for kitchen waste according to claim 3, characterized in that: The first placement box (103) and the second placement box (112) both include a placement box body (1031) and a box cover (1032). The placement box body (1031) is rectangular. A placement slot (103a) is provided on the top of the placement box body (1031). The two ends of the placement box body (1031) are detachably connected to the two inner side walls of the odor purification box (2). The box cover (1032) is hinged to the top of the placement box body (1031). Both the box cover (1032) and the placement box body (1031) are provided with a plurality of first through holes (103b).

6. The deodorizing device for kitchen waste according to any one of claims 1 to 5, characterized in that: The spray assembly (5) comprises a spray pipe (51) and a plurality of spray heads (52), wherein the spray pipe (51) is installed on the inner top of the garbage disposal box (1), and the plurality of spray heads (52) are installed on the spray pipe (51) at equal intervals, and the water outlets of the plurality of spray heads (52) all face the inner bottom of the garbage disposal box (1); The water inlet end of the spray pipe (51) passes through the side wall of the garbage disposal box (1), and the water inlet end of the spray pipe (51) is provided with a liquid inlet valve (53); It also includes a controller (15), which is electrically connected to the air pump (4), the electric heating jacket (9), the exhaust valve (13), the plurality of spray heads (52), and the liquid inlet valve (53).

7. The deodorizing device for kitchen waste according to claim 6, characterized in that: The extrusion assembly (6) comprises an extrusion plate (61), the extrusion plate (61) being movably mounted in the inner cavity of the garbage disposal box (1), and the extrusion plate (61) being provided with a plurality of second through holes (61a).

8. The deodorizing device for kitchen waste according to claim 7, characterized in that: The extrusion assembly (6) further comprises a telescopic rod (62), the telescopic rod (62) being provided with a motor (63), the motor (63) being mounted on the outer top of the garbage disposal box (1), one end of the telescopic rod (62) being detachably connected to a through-shaft of the motor (63), the other end of the telescopic rod (62) being detachably connected to a side of the extrusion plate (61) facing the inner top of the garbage disposal box (1), and the motor (63) being electrically connected to the controller (15).

9. The deodorizing device for kitchen waste according to claim 6, characterized in that: The side wall of the garbage disposal box (1) is provided with an inlet and outlet port (1a), the bottom of the inlet and outlet port (1a) is flush with the bottom of the filter plate (7), the inlet and outlet assembly (8) comprises a box door (81), the box door (81) is hinged to the inlet and outlet port (1a), and the box door (81) is used to open or close the inlet and outlet port (1a); The inlet and outlet assembly (8) further comprises a drain pipe (82), the inlet end of which is in communication with the side wall of the garbage disposal box (1), and a drain valve (83) is provided in the middle section of the drain pipe (82), which is electrically connected to the controller (15).

10. The deodorizing device for kitchen waste according to claim 1, characterized in that: The side wall of the garbage disposal box (1) is also provided with a feeding port (1b), and the feeding port (1b) is arranged below the filter plate (7). The inlet and outlet assembly (8) includes a door (84), and the door (84) is hinged to the feeding port (1b). The door (84) is used to open or close the feeding port (1b).

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