Biochemical continuous treatment equipment for kitchen waste

Abstract

The utility model relates to biochemical continuous treatment equipment for kitchen waste, which comprises a treatment box, a feeding hole formed in the center of the upper end of the treatment box, a crushing mechanism arranged at the lower end in the feeding hole, a heating channel cavity connected to the lower end of the crushing mechanism, a solid-liquid separation mechanism connected to the lower end of the heating channel cavity, and a communicating pipe connected to the lower end of the solid-liquid separation mechanism, the lower end of the communicating pipe is connected with a liquid biochemical fermentation box, the left side of the liquid biochemical fermentation box is communicated with a movable sealing box, and the upper end of the right side of the liquid biochemical fermentation box is communicated with a gas communicating pipe; the solid kitchen waste and the liquid kitchen waste are separated through the solid-liquid separation mechanism, the solid kitchen waste is recycled through the impurity discharging port, the liquid kitchen waste enters the liquid biochemical fermentation box to be subjected to anaerobic biochemical fermentation, and generated biogas is connected with an external recycling device through a gas through pipe to be recycled.

Description

Technical Field

[0001] This utility model relates to the technical field of waste biochemical treatment equipment, and in particular to a continuous biochemical treatment equipment for kitchen waste. Background Technology

[0002] Environmental pollution is becoming increasingly serious. Among the most common types of household waste in daily life, kitchen waste is characterized by its high water content, organic matter content, oil content, salt content, and rich nutrients compared to other types of waste. It has great recycling value. However, due to its high water content and organic matter content, it is very easy to rot and smell bad and breed mosquitoes and flies in a short period of time, which also causes serious pollution to the surrounding environment. Existing biochemical waste treatment equipment cannot separate solids and liquids before anaerobic fermentation and biochemical treatment. Even if there is solid-liquid separation technology, there is no integrated equipment for anaerobic reaction after separation, and the safety factor is low.

[0003] Patent No. CN201410215919.2 discloses a biochemical treatment device for kitchen waste, which consists of a frame, an inner liner, a stirring mechanism, a discharge mechanism, a deodorization tower, and an electrical control box. The inner liner is located in the lower middle part of the frame and is fixedly connected to the frame. The stirring mechanism is connected to the frame through a fixed bearing seat. The discharge mechanism, deodorization tower, and electrical control box are respectively fixedly installed on the frame. The inner liner is also equipped with a heating device for the resource-based treatment of kitchen waste. The heating device is used to heat the inner liner and maintain the temperature of the kitchen waste and microorganisms inside the inner liner. The designed stirring mechanism ensures that the kitchen waste and microorganisms are fully mixed, which improves the biochemical treatment efficiency of kitchen waste and reduces the moisture content of the treated kitchen waste from 30% to less than 10%. However, this device has the following problems: firstly, it cannot achieve solid-liquid separation for anaerobic biochemical treatment of liquids; secondly, it cannot recover and utilize biogas, resulting in a low safety factor. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. By setting up an inlet for feeding, the incoming kitchen waste is crushed by a crushing mechanism and then enters a solid-liquid separation mechanism through a heating channel. The heating channel briefly heats the crushed kitchen waste, and the solid-liquid separation mechanism separates the solid and liquid kitchen waste. The solid kitchen waste is recycled through the impurity outlet, while the liquid kitchen waste enters a liquid biochemical fermentation tank for anaerobic biochemical fermentation. The biogas produced is recycled through a gas pipe connected to an external recovery device. A safety control box ensures the safety of the movable sealed tank and the liquid biochemical fermentation tank. This invention solves the gap in the integrated kitchen waste biochemical treatment equipment in existing technologies and also solves the technical problems of existing kitchen waste biochemical treatments being unable to separate solid and liquid and unable to safely recover biogas.

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

[0006] A continuous biochemical treatment device for kitchen waste includes a treatment tank. An inlet is located at the center of the upper end of the treatment tank. A crushing mechanism is located at the lower end of the inlet. The lower end of the crushing mechanism is connected to a heating channel cavity. The lower end of the heating channel cavity is connected to a solid-liquid separation mechanism. The lower end of the solid-liquid separation mechanism is connected to a connecting pipe. The lower end of the connecting pipe is connected to a liquid biochemical fermentation tank. The left side of the liquid biochemical fermentation tank is connected to a movable sealed box, and the upper right side of the liquid biochemical fermentation tank is connected to a gas pipe. The right side of the gas pipe extends out from the right outer wall of the treatment tank.

[0007] As a preferred embodiment, the crushing mechanism includes a motor, a steering gear connected to the front end of the motor, a rotating shaft connected to the right side of the steering gear, a gear connected to the right end of the rotating shaft, and a crushing tooth connected to the center of the rotating shaft. The rear end of the gear meshes with a second gear, a second rotating shaft is fixedly connected to the center of the second gear, and a second crushing tooth is fixedly connected to the center of the second rotating shaft. The crushing tooth rotates and cuts into the rotation gap of the second crushing tooth. The bearings on the left and right sides of the second rotating shaft are connected to the processing box.

[0008] As a preferred embodiment, the heating channel cavity has a sandwich structure, and the outermost sandwich layer of the heating channel cavity is a heat insulation cotton layer. An electric heating wire layer is provided on the inner side of the heat insulation cotton layer. A maintenance port is provided at the rear end of the heating channel cavity, and fastening screws are evenly provided on the outer side of the maintenance port. The fastening screws are connected to the processing box.

[0009] As a preferred embodiment, the solid-liquid separation mechanism includes a drive motor, the front end of which is connected to a drive commutator, the right side of which is connected to a drive shaft, a protective cylinder is provided on the outside of the drive shaft, and a spiral extrusion plate is fixedly connected to the outside of the drive shaft. The protective cylinder is arranged obliquely upward from left to right, and an impurity outlet is provided at the lower right end of the protective cylinder.

[0010] As a preferred embodiment, the liquid biochemical fermentation tank is a rectangular sealed frame box, and a connecting pipe is provided at the lower right end of the liquid biochemical fermentation tank. The connecting pipe is sealed to a movable sealed box. A safety control box is provided at the upper end of the movable sealed box. A pressure detector is provided inside the safety control box. A probe is provided at the lower end of the pressure detector. The probe extends into the movable sealed box. A control system is provided inside the safety control box. The control system is electrically connected to an external display.

[0011] As another preferred embodiment, the upper end of the connecting pipe is provided with a filter screen, which is located at the connection position between the connecting pipe and the solid-liquid separation mechanism, and the filter screen has an arc-shaped structure.

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

[0013] (1) In this utility model, by setting up a feed inlet, the kitchen waste is poured into the feed inlet and crushed by the crushing mechanism, which reduces the presence of large impurities. Moreover, a sealing cover is set at the feed inlet to facilitate subsequent anaerobic biochemical fermentation treatment and reduce the odor of the kitchen waste. After the kitchen waste is crushed, the temperature is controlled by the heating channel cavity. The heating channel cavity can easily transfer heat to the solid-liquid separation mechanism at the lower end, which is also the temperature control of the entire processing equipment.

[0014] (2) In this utility model, the protective cylinder is set at an angle by setting a solid-liquid separation mechanism, so that the liquid will naturally flow into the connecting pipe, and then the solid will enter the impurity outlet for discharge along with the spiral extrusion plate. The impurity outlet is connected to an external sealed recycling device, which facilitates the recycling of solid impurities in the entire solid-liquid separation mechanism.

[0015] (3) In this utility model, a liquid biochemical fermentation tank and a movable sealed tank are set up and connected by a connecting pipe. Liquid regulators such as pH regulators can be placed in the movable sealed tank. The water quality characteristics of kitchen waste liquid are high organic matter content and unbalanced nutrient composition. It is necessary to adjust the pH value to make it suitable for microbial growth, generally between 6.5 and 8.5, so as to improve the efficiency of biochemical treatment. Then, a pressure detector is set up to ensure that no unnecessary explosion will occur due to excessive biogas inside during the entire anaerobic biochemical treatment process.

[0016] In summary, this equipment has the advantages of high safety factor, good continuity of biochemical treatment, temperature control during solid-liquid separation, high biochemical treatment efficiency, and the ability to separately recycle solids and liquids, making it particularly suitable for the field of waste biochemical treatment equipment technology. 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 2 This is a schematic diagram of the drive motor in this utility model.

[0020] Figure 3 This is a schematic diagram of the maintenance port in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the heat insulation cotton layer in this utility model.

[0022] Figure 5 This is a schematic diagram of the pulverizing teeth 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 5 As shown, this utility model provides a continuous biochemical treatment device for kitchen waste, including a treatment tank 1. The treatment tank 1 has a feed inlet 2 at the center of its upper end. The feed inlet 2 has a crushing mechanism 3 at its lower end. The lower end of the crushing mechanism 3 is connected to a heating channel cavity 4. The lower end of the heating channel cavity 4 is connected to a solid-liquid separation mechanism 5. The lower end of the solid-liquid separation mechanism 5 is connected to a connecting pipe 6. The lower end of the connecting pipe 6 is connected to a liquid biochemical fermentation tank 7. The left side of the liquid biochemical fermentation tank 7 is connected to a movable sealed box 8, and the upper right side of the liquid biochemical fermentation tank 7 is connected to a gas pipe 9. The right side of the gas pipe 9 extends out of the right outer wall of the treatment tank 1.

[0026] Furthermore, the crushing mechanism 3 includes a motor 31, with a steering gear 32 connected to the front end of the motor 31. A rotating shaft is connected to the right side of the steering gear 32, and a gear 34 is connected to the right end of the rotating shaft. Crushing teeth 33 are connected to the center of the rotating shaft. The rear end of the gear 34 is meshed with a second gear 35. The center of the second gear 35 is fixedly connected to a second rotating shaft. The center of the second rotating shaft is fixedly connected to a second crushing tooth 36. The crushing tooth 33 rotates and cuts into the rotation gap of the second crushing tooth 36. The left and right bearings of the second rotating shaft are connected to the processing box 1. The motor 31 drives the motor output shaft to rotate. The motor output shaft is connected to the steering gear 32. A gear is provided on the motor output shaft. The steering gear 32 meshes with a rotating gear at the upper end of the gear. The center of the rotating gear is connected to the rotating shaft. In this way, the steering gear 32 can change the rotation angle of the motor 31.

[0027] The rotating shaft drives the gear 34 to rotate, which in turn drives the second gear 35 to rotate, thereby causing the crushing teeth 33 and the second crushing teeth 36 to rotate and crush the kitchen waste. The principle is simple.

[0028] Furthermore, the heating channel cavity 4 has a sandwich structure, and the outermost sandwich layer of the heating channel cavity 4 is a heat insulation cotton layer 41. The inner side of the heat insulation cotton layer 41 is provided with an electric heating wire layer 42. The rear end of the heating channel cavity 4 is provided with a maintenance port 43. Fastening screws are evenly arranged on the outer side of the maintenance port 43. The fastening screws are connected to the processing box 1. The electric heating wire layer 42 is provided with an electric heating wire. The electric heating wire can be heated when energized. The wiring of the electric heating wire layer 42 is set in the processing box 1 and then connected to the main control system to realize temperature regulation. The heat insulation cotton layer 41 is to reduce the heat loss in the processing box 1.

[0029] Furthermore, the solid-liquid separation mechanism 5 includes a drive motor 51, with a drive commutator 52 connected to the front end of the drive motor 51. A drive shaft is connected to the right side of the drive commutator 52, and a protective cylinder 53 is provided on the outer side of the drive shaft. A spiral extrusion plate is fixedly connected to the outer side of the drive shaft. The protective cylinder 53 is arranged obliquely upward from left to right, and an impurity outlet 54 is provided at the lower right end of the protective cylinder 53. When the drive motor 51 starts working, the drive commutator 52 and the commutator 32 operate on the same principle, which allows the drive motor 51 to smoothly drive the drive shaft to rotate, thereby driving the spiral extrusion plate to rotate spirally. This allows solid impurities to be discharged from the impurity outlet 54 along the spiral extrusion plate. The impurity outlet 54 is connected to a sealed impurity recovery device. This not only recovers solid kitchen waste impurities but also does not affect the sealing effect of the entire structure.

[0030] Furthermore, the liquid biochemical fermentation tank 7 is a rectangular sealed frame box, and a connecting pipe is provided at the lower right end of the liquid biochemical fermentation tank 7. The connecting pipe is sealed to the movable sealed box 8. A safety control box 81 is provided at the upper end of the movable sealed box 8. A pressure detector is provided inside the safety control box 81. A probe is provided at the lower end of the pressure detector. The probe extends into the movable sealed box 8. A control system is provided inside the safety control box 81. The control system is electrically connected to an external display. The liquid biochemical fermentation tank 7 performs anaerobic fermentation biochemical treatment on the recovered waste liquid. The biogas obtained is recycled and reused from the gas pipe 9. Then, in conjunction with the safety control box 81 on the movable sealed box 8, it ensures that the internal pressure will not exceed the safety value, ensuring a higher safety factor for the entire equipment.

[0031] Furthermore, a filter screen is provided at the upper end of the connecting pipe 6. The filter screen is located at the connection position between the connecting pipe 6 and the solid-liquid separation mechanism 5, and the filter screen has an arc-shaped structure. The purpose of the filter screen is to reduce the amount of solid waste entering the liquid biochemical fermentation tank 7, thereby improving the biochemical treatment efficiency of the entire equipment.

[0032] Working process: First, pour the kitchen waste into the feed inlet 2, then cover it with a sealing cover to prevent the kitchen waste from splashing and ensure that the entire device is in a sealed environment. At this time, the motor 31 starts to work, and the motor 31 drives the crushing teeth 33 and the second crushing teeth 36 to rotate. The crushing teeth 33 and the second crushing teeth 36 work together to crush the large waste in the kitchen waste. The processed kitchen waste passes through the heating channel cavity 4, which is equipped with an electric heating wire layer 42. The electric heating wire layer 42 heats the heating channel cavity 4. Because the heating channel cavity 4 is connected to the solid-liquid separation mechanism 5 at the lower end, the heat will be transferred to the solid-liquid separation mechanism 5 to perform simple temperature control on the kitchen waste. Then, the protective cylinder 53 in the solid-liquid separation mechanism 5 is set at an angle downward and upward. In this way, the liquid will be affected by gravity and reach the liquid biochemical fermentation tank 7, while the solid waste will reach the impurity outlet 54 along the spiral extrusion plate for impurity recovery.

[0033] The liquid enters the liquid biochemical fermentation tank 7, and a liquid conditioner, such as a pH adjuster, is placed in the movable sealed tank 8. The characteristics of the liquid water from kitchen waste are high organic matter content and unbalanced nutrient composition, requiring pH adjustment to bring it into a suitable range for microbial growth, generally between 6.5 and 8.5, thereby improving the efficiency of biochemical treatment. A pressure detector is then installed to ensure that no unnecessary explosions occur due to excessive biogas during the entire anaerobic biochemical treatment process. The biogas enters the external gas recovery tank through the gas pipe 9, which is simple and convenient. The entire continuous biochemical treatment device for kitchen waste can control the temperature while maintaining a high safety factor, high biochemical treatment efficiency, and is simple and convenient.

[0034] 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.

[0035] 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.

[0036] 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 continuous biochemical treatment device for kitchen waste, characterized in that: Include The processing box (1), the upper end center position of processing box (1) is equipped with feeding port (2), the inside lower end of feeding port (2) is equipped with crushing mechanism (3), the lower end of crushing mechanism (3) is connected with heating channel cavity (4), the lower end of heating channel cavity (4) is connected with solid-liquid separation mechanism (5), the lower end of solid-liquid separation mechanism (5) is connected with communication pipe (6), the lower end of communication pipe (6) is connected with liquid biochemical fermentation tank (7), the left side of liquid biochemical fermentation tank (7) is communicated with movable sealing tank (8), and the right side upper end of liquid biochemical fermentation tank (7) is communicated with gas pipe (9), and the right side of gas pipe (9) extends out of the right side outer wall of processing box (1).

2. The kitchen waste biochemical continuous treatment equipment according to claim 1, characterized in that, The crushing mechanism (3) includes motor (31), the front end of motor (31) is connected with steering gear (32), the right side of steering gear (32) is connected with rotating shaft, the right side end of rotating shaft is connected with gear (34), and the center position of rotating shaft is connected with crushing tooth (33), the rear end of gear (34) is engaged with second gear (35), the center position of second gear (35) is fixedly connected with second rotating shaft, the center position of second rotating shaft is fixedly connected with second crushing tooth (36), the crushing tooth (33) rotates just cuts into the rotating gap of second crushing tooth (36), and the left and right side bearings of second rotating shaft are connected with processing box (1).

3. The kitchen waste biochemical continuous treatment equipment according to claim 1, characterized in that, The heating channel cavity (4) is a sandwich structure, and the outermost sandwich of the heating channel cavity (4) is a heat insulation cotton layer (41), the inner side of the heat insulation cotton layer (41) is provided with an electric heating wire layer (42), the rear end of the heating channel cavity (4) is provided with a maintenance opening (43), the outer side of the maintenance opening (43) is uniformly provided with a fastening screw, and the fastening screw is connected with the processing box (1).

4. The kitchen waste biochemical continuous treatment equipment according to claim 1, characterized in that, The solid-liquid separation mechanism (5) includes a drive motor (51), the front end of the drive motor (51) is connected with a drive commutator (52), the right side of the drive commutator (52) is connected with a drive shaft, the outer side of the drive shaft is provided with a protection cylinder (53), and the outer side of the drive shaft is fixedly connected with a spiral extrusion sheet, the protection cylinder (53) is arranged from left to right and upward, and the right lower end of the protection cylinder (53) is provided with an impurity discharge port (54).

5. The kitchen waste biochemical continuous treatment equipment according to claim 1, characterized in that, The liquid biochemical fermentation tank (7) is a rectangular sealed frame box, and the right lower end of the liquid biochemical fermentation tank (7) is provided with a connecting pipe, the connecting pipe is sealingly connected with the movable sealing tank (8), the upper end of the movable sealing tank (8) is provided with a safety control box (81), the safety control box (81) is provided with a pressure detector, the lower end of the pressure detector is provided with a probe, the probe extends into the movable sealing tank (8), and the safety control box (81) is provided with a control system, and the control system is electrically connected with an external display.

6. The kitchen waste biochemical continuous treatment equipment according to claim 1, characterized in that, The upper end of the communication pipe (6) is provided with a filter screen, the filter screen is arranged at the communication position of the communication pipe (6) and the solid-liquid separation mechanism (5), and the filter screen is of arc structure.

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