Kitchen waste integrated treatment equipment

Abstract

The utility model relates to crushing treatment technical field, concretely relates to a kind of kitchen garbage integrated processing equipment, including pulping crusher, pulping crusher is used to receive and crush garbage, to output organic slurry and inorganic solid residue temporary storage bin is used to receive organic slurry and make it sedimentation stratification into organic waste liquid and organic sediment heating equipment can heat the organic waste liquid exported from temporary storage bin three-phase separator can receive the organic waste liquid exported from heating equipment, and it is separated into organic residue, waste water and oil. Temporary storage bin has the bottom plate inclined relative to horizontal plane, further including screw lifting mechanism, one end is inserted into temporary storage bin and is supported by bottom plate, the other end is threaded out temporary storage bin screw lifting mechanism conveying direction is parallel to the extension direction of bottom plate, the part of screw lifting mechanism outside temporary storage bin has shell, the top of temporary storage bin has the first mouth of slurry receiving and the second mouth of inorganic solid residue receiving, the top of shell has the third mouth of organic waste residue receiving.

Description

Technical Field

[0001] This utility model relates to the field of crushing and processing technology, and in particular to an integrated processing equipment for kitchen waste. Background Technology

[0002] With the improvement of residents' living standards and the rapid development of the catering industry, the amount of food waste generated is increasing day by day. Due to its high oil content, water content, salt content and organic matter content, food waste is extremely prone to decomposition and emitting foul odors, and it is also very easy to breed pathogenic microorganisms. It needs to be treated quickly and effectively, otherwise it will cause serious environmental pollution.

[0003] Currently, food waste treatment includes two main modes: centralized treatment and decentralized treatment. Centralized treatment can effectively reduce the space occupied by the entire food waste treatment plant.

[0004] However, the inventors learned that in the existing food waste treatment process, the pulping and crushing equipment will produce organic slurry and inorganic solid residue. The organic slurry can be separated into organic sludge and organic sewage by gravity sedimentation. The organic sewage is heated and sent to a three-phase separator for separation, which can obtain organic residue, wastewater and oil.

[0005] In other words, the aforementioned organic sludge, inorganic solid sludge, and organic residue all need to be transported to the transfer vehicles using separate elevators. The use of multiple elevators will increase the space occupied by the entire waste treatment equipment, making it inconvenient to further achieve integrated treatment. Utility Model Content

[0006] This utility model provides an integrated kitchen waste treatment device that can solve at least one of the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, one or more embodiments of this utility model provide an integrated kitchen waste treatment device, including a pulping and crushing machine, a temporary storage bin, a heating device, and a three-phase separator. The pulping and crushing machine is used to receive and crush the waste to output organic slurry and inorganic solid residue. The temporary storage bin is used to receive the organic slurry and cause it to settle and separate into organic wastewater and organic sludge. The heating device can heat the organic wastewater output from the temporary storage bin. The three-phase separator can receive the organic wastewater output from the heating device and separate it into organic residue, wastewater, and oil.

[0008] The temporary storage bin has a bottom plate that is inclined relative to the horizontal plane, and also includes a spiral lifting mechanism. One end of the spiral lifting mechanism is inserted into the temporary storage bin and supported by the bottom plate, while the other end extends out of the temporary storage bin. The conveying direction of the spiral lifting mechanism is parallel to the extension direction of the bottom plate. The part of the spiral lifting mechanism outside the temporary storage bin has a shell. The top of the temporary storage bin has a first port for receiving slurry and a second port for receiving inorganic solid slag. The top of the shell has a third port for receiving organic waste. The first port is located above the lowest end of the spiral lifting mechanism, and the second port is located above the highest end of the spiral lifting mechanism inside the temporary storage bin.

[0009] The beneficial effects of one or more of the above technical solutions are as follows:

[0010] In this design, the bottom plate of the temporary storage chamber is inclined upwards relative to the horizontal plane. One end of the spiral lifting mechanism is inserted into the temporary storage chamber, and the other end extends out of it. The first inlet of the temporary storage chamber receives the slurry used for sedimentation and stratification, while the second inlet directly receives inorganic solids. These inorganic solids, due to the action of baffles, are not allowed to fall downwards and mix with the slurry; instead, they are directly conveyed upwards. Additionally, the portion of the spiral lifting mechanism outside the temporary storage chamber can also receive organic residue output from the three-phase separator.

[0011] In other words, this solution utilizes a single, upward-sloping spiral lifting mechanism to collect organic or inorganic solid slag generated from three different working processes at different locations, and centrally transports the solid slag to the transfer vehicle. This configuration reduces the need for lifting and conveying mechanisms, further centralizing the equipment setup. Attached Figure Description

[0012] Figure 1 This is an axonometric view of the overall structure in an embodiment of the present utility model;

[0013] Figure 2 This is a cross-sectional view of the pulping and crushing machine in an embodiment of this utility model;

[0014] Figure 3 This is a schematic diagram of the pulping and crushing machine, the temporary storage bin, and the screw conveyor mechanism in an embodiment of this utility model;

[0015] Figure 4 This is a cross-sectional view of the temporary storage bin and the spiral lifting mechanism in an embodiment of this utility model.

[0016] In the diagram, 1. Feeding hopper; 2. Feeding port; 3. Pulping and crushing machine; 4. Agitator motor; 5. Heating chamber; 6. Three-phase separator; 7. Oil storage tank; 8. Screw conveyor mechanism; 9. Temporary storage bin; 10. Shell;

[0017] 31. Feed pipe; 32. Outer barrel; 33. Rotary motor; 34. Discharge pipe; 35. Crushing barrel; 36. Crushing teeth; 37. Annular cavity; 38. Slurry outlet; 39. Outer plate; 81. Drive motor; 82. Outer jacket; 83. Slag discharge port; 84. Drive shaft; 91. First bottom plate; 910. Second bottom plate; 92. Sedimentation chamber; 93. Overflow hole; 94. Tank; 95. First opening; 96. Second opening; 97. Third opening; 98. Baffle; 910. Second bottom plate. Detailed Implementation

[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0019] See Figures 1-4 A typical embodiment of this utility model provides an integrated kitchen waste treatment device, including a pulping and crushing machine 3, a temporary storage bin 9, a heating device, and a three-phase separator 6. The pulping and crushing machine 3 is used to receive and crush the waste to output organic slurry and inorganic solid residue. The temporary storage bin 9 is used to receive the organic slurry and cause it to settle and separate into organic sewage and organic sludge. The heating device can heat the organic sewage output from the temporary storage bin 9. The three-phase separator 6 can receive the organic sewage output from the heating device and separate it into organic residue, wastewater, and oil.

[0020] The temporary storage bin 9 has a bottom plate inclined relative to the horizontal plane, and a sedimentation chamber 92 is provided inside the temporary storage bin 9. This embodiment also includes a spiral lifting mechanism 8, one end of which is inserted into the temporary storage bin 9 and supported by the bottom plate, and the other end extends out of the temporary storage bin 9. The conveying direction of the spiral lifting mechanism 8 is parallel to the extension direction of the bottom plate. The part of the spiral lifting mechanism 8 outside the temporary storage bin 9 has a shell 10. The top of the temporary storage bin 9 has a first port 95 for receiving slurry and a second port 96 for receiving inorganic solid residue. The top of the shell 10 has a third port 97 for receiving organic waste residue. The first port 95 is located above the lowest end of the spiral lifting mechanism 8, and the second port 96 is located above the highest end of the spiral lifting mechanism 8 in the temporary storage bin 9. A downwardly extending baffle 98 is provided on the side of the second port 96 near the first port 95. The baffle 98 has a semi-circular notch and is inserted between two blades of the spiral lifting mechanism 8.

[0021] After the kitchen waste is collected, it is sent to the pulping and crushing machine 3 mentioned above. After crushing, pulping, and filtering out impurities, it is separated into organic slurry and inorganic solid residue. The lower layer of organic slurry settles at the bottom after standing, and the upper layer of organic wastewater is sent to the heating equipment. The heating equipment uses steam as a heat source to heat the organic slurry. After heating to 80-90℃, it is sent to the three-phase separator to separate the organic slurry into crude grease, organic residue and wastewater.

[0022] Organic sludge, inorganic solid sludge and organic residue are combined and discharged through the screw conveyor 8. The wastewater is stored and then sent to the sewage treatment plant for further treatment.

[0023] Specifically, the temporary storage compartment 9 includes a first base plate 91 and a second base plate 910. The spiral lifting mechanism 8 is supported on the second base plate 910. Here, the angle between the first base plate 91 and the horizontal plane is greater than the angle between the second base plate 910 and the horizontal plane. Furthermore, an overflow trough 94 is provided at the upper part of the temporary storage compartment 9, and the side plate of the temporary storage compartment 9 is provided with an overflow hole 93 facing the trough 94.

[0024] In this embodiment, a feeding hopper 1 is also included. The upper end of the feeding hopper 1 is open to form a feeding port 2. The bottom of the feeding hopper 1 is connected to the crushing barrel 35 of the pulping and crushing machine 3 through a feeding pipe 31. A horizontal spiral feeding component is provided in the feeding pipe 31.

[0025] Specifically, the screw feeding assembly (not shown in the figure) here is a shaftless screw structure, which is used to transport kitchen waste from the bottom of the feeding hopper 1 to the bottom of the crushing bucket 35 of the pulping and crushing machine 3. The rotation speed of the shaftless screw will vary according to the torque of the shaft of the pulping and crushing machine 3.

[0026] In this embodiment, the pulping and crushing machine 3 includes an outer barrel 32 and a crushing barrel 35 disposed inside the outer barrel 32. The crushing barrel 35 contains a spiral crushing assembly with its rotation axis arranged vertically. The upper end of the crushing barrel 35 is connected to the discharge pipe 34, and the lower end of the crushing barrel 35 is connected to the feed pipe 31. An annular cavity 37 is formed between the inner wall of the outer barrel 32 and the outer wall of the crushing barrel 35. The bottom end of the annular cavity 37 is connected to the pulp outlet 38 at the lower end of the pulping and crushing machine 3. The lower middle part of the outer wall of the crushing barrel 35 has sieve holes. Both the feed pipe 31 and the discharge pipe 34 pass through the annular cavity 37 but are not connected to it. The upper and lower ends of the outer barrel 32 each have a horizontal plate, which can respectively seal the upper and lower ends of the crushing barrel 35. In some embodiments, an outer plate 39 is provided outside the outer barrel 32 to form a protective outer shell.

[0027] Specifically, the spiral crushing assembly includes a crushing blade shaft installed vertically to the ground. The crushing blade shaft is equipped with spirally arranged crushing teeth 36. Driven at high speed by a rotary motor 33, the crushing blade shaft utilizes the high-speed rotating main crushing teeth 36 and aerodynamics to crush the waste. Organic matter smaller than the screen aperture diameter is discharged, while matter larger than the screen aperture diameter continues to be crushed. The crushed slurry is discharged through the slurry outlet 38 at the bottom. Inorganic solids that cannot pass through, such as plastic bags, food and beverage packaging, discarded tableware, and large bones, are discharged through the light matter outlet pipe 34 at the top. The screen aperture diameter can be selected according to the type of debris in the kitchen waste. The organic matter loss rate of the organic matter separator is ≤5%. As one embodiment, the pulping and crushing machine 3 can be equipped with a flushing water pipeline to clean the screen apertures and the crushing blade shaft.

[0028] In this embodiment, the heating device consists of two heating chambers 5, and the heat source is steam. A stirrer is installed on the top of each heating chamber 5. Each heating chamber 5 is equipped with a steam inlet, a feed inlet, and a discharge outlet. The heating chambers 5 are connected in parallel.

[0029] Specifically, a stirrer is installed on the top of heating chamber 5, and the stirrer is driven by stirring motor 4. Heating chamber 5 is equipped with a steam inlet, a feed inlet, and a discharge outlet. The two heating chambers 5 operate in parallel. When the first heating chamber reaches the designed liquid level, the feed inlet of the first heating chamber is closed, stopping the feeding, and the feed inlet of the second heating chamber is opened to start feeding. Steam is introduced into the first heating chamber to start heating. After heating to the designed temperature, the discharge outlet is opened, and the heated slurry is pumped to the three-phase separator 6. After the first heating chamber is emptied, the discharge outlet is closed, and the feed inlet is opened. After the second heating chamber reaches the designed liquid level, the above process is repeated.

[0030] Optionally, the heating equipment can also be equipped with a larger heating chamber 5, which allows for simultaneous feeding and discharging while maintaining the internal temperature at the design requirements. Optionally, the heating chamber 5 can be used for direct heating or indirect heating. When indirect heating is used, a condensate recovery device must be installed.

[0031] In this embodiment, the oil output from the three-phase separator 6 can be temporarily stored in the oil storage tank 7 and transported out in a fixed quantity.

[0032] Optionally, this embodiment includes a wastewater tank to store the wastewater output from the three-phase separator 6, which is then sent to a wastewater treatment plant for further treatment at regular intervals.

[0033] Alternatively, organic solids can be mixed with inorganic solids for transport, or used alone as organic matter for purposes such as insect breeding and composting.

[0034] In this embodiment, the opening of the temporary storage compartment 9 gradually decreases from top to bottom, and the temporary storage compartment 9 has side plates connected to the bottom plate. The distance between the two side plates gradually decreases in the downward direction.

[0035] In this embodiment, the upper part of the shell 10 has a slag discharge port 83, and the opening of the slag discharge port 83 is arranged facing downward.

[0036] In this embodiment, the spiral lifting mechanism 8 includes a drive shaft 84 and spiral blades arranged around the drive shaft 84. A drive motor 81 is mounted on the upper end of the housing 10, and the output shaft of the drive motor 81 is connected to the drive shaft 84 of the spiral lifting mechanism 8. An outer sleeve 82 is provided at the end of the housing 10, and the outer sleeve 82 is fixedly fitted outside the output shaft of the drive motor 81.

[0037] In other embodiments, the spiral lifting mechanism 8 here can be a shaftless spiral, which can be set by those skilled in the art.

[0038] Working principle:

[0039] After collection, the kitchen waste is transported to the feeding hopper 1 and fed to the pulping and crushing machine 3 through the feeding pipe 31 and the screw feeding assembly. The waste is fed to the bottom of the crushing bucket 35 of the pulping and crushing machine 3. The organic matter is made into slurry. The slurry is discharged from the screen holes to the slurry temporary storage hopper 9. The inorganic matter is discharged through the discharge pipe 34 to the top of the screw lifting assembly in the temporary storage hopper 9 and is blocked from falling by the baffle 98.

[0040] After the slurry in the temporary storage bin 9 is settled, the upper layer of organic wastewater is sent to the heating equipment. The lower layer of organic sludge is transported out via the screw conveyor 8. The organic wastewater is stirred and heated in the heating bin 5 until it reaches 75-85°C, after which heating is stopped and the wastewater is pumped to the three-phase separator 6.

[0041] In the three-phase separator 6, the organic wastewater is separated into three phases by centrifugal force: a solid phase (organic residue), a liquid phase (wastewater), and an oil phase (grease). The organic residue is connected to a screw conveyor via the third port 97 for external transport. The oil phase is connected to an oil storage tank 7 for storage and future use. The wastewater is discharged to a wastewater treatment plant for further treatment.

[0042] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0043] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. An integrated kitchen waste treatment device, characterized in that, include: A pulping and crushing machine is used to receive and crush waste to output organic slurry and inorganic solid residue; Temporary storage bins are used to receive organic slurries and allow them to settle and separate into organic wastewater and organic sludge. Heating equipment that can heat the organic wastewater discharged from the temporary storage tank; A three-phase separator is capable of receiving organic wastewater from heating equipment and separating it into organic residue, wastewater and oil. The temporary storage bin has a bottom plate that is inclined relative to the horizontal plane; it also includes a spiral lifting mechanism, one end of which is inserted into the temporary storage bin and supported by the bottom plate, and the other end of which extends out of the temporary storage bin; the conveying direction of the spiral lifting mechanism is parallel to the extension direction of the bottom plate, and the part of the spiral lifting mechanism outside the temporary storage bin has a shell, the top of the temporary storage bin has a first port for receiving slurry and a second port for receiving inorganic solid slag, and the top of the shell has a third port for receiving organic waste slag, the first port is located above the lowest end of the spiral lifting mechanism, and the second port is located above the highest end of the spiral lifting mechanism in the temporary storage bin; The second opening is provided with a downwardly extending baffle on the side near the first opening. The baffle has a semi-circular notch and is inserted between the two blades of the spiral lifting mechanism.

2. The integrated food waste treatment equipment according to claim 1, characterized in that, It also includes a feeding hopper, the upper end of which is open, and the bottom of which is connected to the crushing barrel of the pulping and crushing machine through a feeding pipe. The feeding pipe is equipped with a horizontal spiral feeding component.

3. The integrated kitchen waste treatment equipment according to claim 2, characterized in that, The pulping and crushing machine includes an outer barrel and a crushing barrel disposed inside the outer barrel. The crushing barrel is equipped with a spiral crushing assembly with a vertically arranged rotation axis. The upper end of the crushing barrel is connected to the discharge pipe, and the lower end of the crushing barrel is connected to the feed pipe. An annular cavity is formed between the inner wall of the outer barrel and the outer wall of the crushing barrel. The bottom end of the annular cavity is connected to the slurry outlet at the lower end of the pulping and crushing machine. The lower middle part of the outer wall of the crushing barrel has screen holes.

4. The integrated kitchen waste treatment equipment according to claim 3, characterized in that, The outer barrel has horizontal plates at both the top and bottom, which can respectively seal the top and bottom of the crushing barrel.

5. The integrated food waste treatment equipment according to claim 3, characterized in that, Both the feed pipe and the discharge pipe pass through the annular cavity but are not connected to it.

6. The integrated food waste treatment equipment according to claim 1, characterized in that, The opening of the temporary storage compartment gradually decreases from top to bottom, and the temporary storage compartment has side plates connected to the bottom plate; the distance between the two side plates gradually decreases in the downward direction.

7. The integrated food waste treatment equipment according to claim 1, characterized in that, The upper part of the shell has a slag discharge port, and the opening of the slag discharge port is arranged facing downward.

8. The integrated food waste treatment equipment according to claim 1, characterized in that, The spiral lifting mechanism includes a drive shaft and spiral blades arranged around the drive shaft.

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