Kitchen waste and sludge co-processing device

Abstract

The utility model discloses a kitchen waste sludge co-processing device, which belongs to the technical field of environmental protection equipment and comprises a co-digestion tank, a stirring component capable of stirring and mixing slurry in the co-digestion tank, a sludge cleaning component for cleaning sludge deposited on the inner bottom wall of the co-digestion tank, and a slag discharge pipe for discharging slag at the bottom of the co-digestion tank, through cooperative use of a water inlet pipe, a bottom pipe and a first spray head, substances deposited at the bottom of the collaborative digestion tank are dispersed, so that the substances are mixed with water, through cooperative use of a communicating pipe, an electromagnetic valve, an annular pipe and a second spray head, the substances deposited at the bottom of the collaborative digestion tank are further dispersed from top to bottom, so that the aim of improving the digestion efficiency is achieved. And a residue discharge pipe and a residue discharge valve are matched for use, so that a mixture of substances and water is convenient to discharge, substances deposited at the bottom of the collaborative digestion tank are convenient to clean, and undecomposed solids, microorganism remains and other precipitates are convenient to clean and are prevented from being excessively accumulated.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, and particularly relates to a device for co-disposing kitchen waste and sludge. Background Art

[0002] With the acceleration of the urbanization process, the generation amount of kitchen waste has increased significantly. Kitchen waste contains a large amount of organic matter. The co-disposal of kitchen waste and sludge can improve the resource recovery efficiency and reduce the environmental impact.

[0003] The co-disposal of kitchen waste and sludge generally includes the following steps: preliminary treatment of kitchen waste, anaerobic digestion, aerobic composting, sludge dewatering and resource utilization, etc., to maximize the recycling of kitchen waste and sludge. However, in the operation of anaerobic digestion, certain precipitates will accumulate at the bottom of the digestion tank. The sediments usually include undecomposed solids, microbial remains and other precipitates. During the co-disposal process of kitchen waste and sludge, it may be inconvenient to clean the precipitates formed at the bottom of the tank body, which may lead to excessive accumulation of precipitates, and then affect the overall effect of the anaerobic digestion process.

[0004] It can be seen that the existing technology still needs to be improved. Summary of the Utility Model

[0005] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present utility model is to provide a device for co-disposing kitchen waste and sludge, aiming to solve the problem that it may be inconvenient to clean the precipitates formed at the bottom of the tank body, which may lead to excessive accumulation of precipitates.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A device for co-disposing kitchen waste and sludge includes a co-digestion tank, a stirring assembly for stirring and mixing the slurry inside the co-digestion tank, a sludge cleaning assembly for cleaning the sludge deposited on the inner bottom wall of the co-digestion tank, and a slag discharge pipe for discharging the slag at the bottom of the co-digestion tank. A slag discharge valve is fixedly arranged inside the slag discharge pipe; the sludge cleaning assembly includes a bottom pipe fixedly arranged on the inner bottom wall of the co-digestion tank, a water inlet pipe fixedly arranged at the water inlet of the bottom pipe, a first spray head fixedly arranged on the top of the bottom pipe, and an annular pipe fixedly arranged on the inner cavity wall of the co-digestion tank. The water inlet pipe fixedly penetrates through the outer wall of the co-digestion tank. A second spray head is fixedly arranged at the bottom of the annular pipe, and the second spray head is arranged obliquely. A communicating pipe is fixedly connected between the water inlet pipe and the annular pipe, and an electromagnetic valve is fixedly connected inside the communicating pipe.

[0008] Preferably, a feed inlet is fixedly communicated with the outside of the bottom of the co-digestion tank, and the feed inlet and the slag discharge pipe are symmetrically distributed. A liquid discharge pipe is fixedly communicated with the middle area of the outer wall of the co-digestion tank, and a valve is fixedly arranged inside the liquid discharge pipe. By providing the feed inlet, the liquid discharge pipe and the valve, it is convenient to transfer the mixture into the co-digestion tank and facilitate the discharge of the liquid inside the co-digestion tank after precipitation.

[0009] Preferably, a safety water seal is fixedly communicated with the top of the co-digestion tank, and a biogas collection pipe is fixedly communicated with the top of the safety water seal. By providing the safety water seal and the biogas collection pipe, it is convenient for the discharge and transfer of biogas.

[0010] Preferably, the stirring assembly includes a motor fixedly arranged on the top of the co-digestion tank, a shaft rod fixedly arranged at the output end of the motor, and a stirring auger fixedly arranged on the outer wall of the shaft rod. The shaft rod is rotatably connected with the co-digestion tank. By providing the motor, the shaft rod and the stirring auger, the materials inside the co-digestion tank are stirred.

[0011] Preferably, a sleeve is fixedly connected to the outer wall of the shaft rod, an upper connecting rod is fixedly connected to the outer wall of the sleeve, a vertical rod is fixedly connected to the end of the upper connecting rod away from the sleeve, a lower connecting rod is fixedly connected to the outside of the bottom of the vertical rod, an inner ring plate is fixedly connected to the end of the lower connecting rod away from the vertical rod, and a stirring rod is fixedly connected to the outer wall of the inner ring plate. A heating plate is fixedly arranged on the inner wall of the co-digestion tank. By providing the sleeve, the upper connecting rod, the vertical rod, the lower connecting rod, the inner ring plate, the stirring rod and the heating plate, the materials inside the co-digestion tank are further stirred and the temperature inside the co-digestion tank is increased.

[0012] Preferably, an outer ring plate is rotatably connected to the inner wall of the co-digestion tank, and the outer ring plate is fixedly connected with the upper connecting rod. By providing the outer ring plate, the rotation stability of the upper connecting rod is increased.

[0013] Preferably, an inner rod is fixedly connected to the center of the bottom of the upper connecting rod, and the inner rod is fixedly connected to the top of the lower connecting rod. An L-shaped stirring rod is fixedly arranged between the inner rod and the vertical rod. By providing the inner rod and the L-shaped stirring rod, the materials are further evenly mixed.

[0014] Beneficial effects:

[0015] Through the combined use of the water inlet pipe, the bottom pipe and the first spray head, the substances deposited at the bottom of the co-digestion tank are flushed, so that the substances are mixed with water. Through the combined use of the connecting pipe, the solenoid valve, the annular pipe and the second spray head, the substances deposited at the bottom of the co-digestion tank are further flushed from top to bottom. Then, through the combined use of the slag discharge pipe and the slag discharge valve, it is convenient for the discharge of the mixture of substances and water, so as to facilitate the cleaning of the substances deposited at the bottom of the co-digestion tank, and further facilitate the removal of undecomposed solids, microbial remains and other precipitates, and avoid their excessive accumulation.

[0016] Through the operation of the motor, the shaft drives the stirring auger to rotate, turning the materials inside the co-digestion tank from bottom to top. Then, through the combined use of the sleeve, upper connecting rod, outer ring plate, vertical rod, lower connecting rod, inner ring plate, stirring rod, inner rod, and L-shaped stirring rod, the materials inside the co-digestion tank are stirred to ensure uniform mixing of the materials inside the co-digestion tank and promote the decomposition by microorganisms. Brief Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 It is a sectional structural schematic diagram of the present utility model;

[0019] Figure 3 It is a schematic diagram of the sludge cleaning component of the present utility model and its related structures;

[0020] Figure 4 It is a schematic diagram of the stirring component of the present utility model and its related structures.

[0021] Main Element Symbol Explanation: 1 - Co-digestion tank;

[0022] 2 - Stirring component; 21 - Motor; 22 - Shaft; 23 - Stirring auger; 24 - Sleeve; 25 - Upper connecting rod; 26 - Outer ring plate; 27 - Vertical rod; 28 - Lower connecting rod; 29 - Inner ring plate; 210 - Stirring rod; 211 - Inner rod; 212 - L-shaped stirring rod;

[0023] 3 - Sludge cleaning component; 31 - Bottom pipe; 32 - Water inlet pipe; 33 - First spray head; 34 - Annular pipe; 35 - Second spray head; 36 - Connecting pipe; 37 - Solenoid valve;

[0024] 4 - Feed inlet; 5 - Liquid discharge pipe; 6 - Slag discharge pipe; 7 - Valve; 8 - Slag discharge valve; 9 - Safety water seal; 10 - Biogas collection pipe; 11 - Heating plate. Detailed Description of the Preferred Embodiments

[0025] The present utility model provides a device for co-disposing kitchen waste sludge. To make the purpose, technical solutions, and effects of the present utility model clearer and more definite, the following further elaborates on the present utility model with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.

[0026] Please refer to Figures 1-3, the utility model provides a co-disposal device for kitchen waste and sludge, which includes a co-digestion tank 1, a stirring component 2 that can stir and mix the slurry inside the co-digestion tank 1, a sludge cleaning component 3 for cleaning the sludge deposited on the inner bottom wall of the co-digestion tank 1, and a slag discharge pipe 6 for discharging the slag at the bottom of the co-digestion tank 1. A slag discharge valve 8 is fixedly arranged inside the slag discharge pipe 6; the sludge cleaning component 3 includes a bottom pipe 31 fixedly arranged on the inner bottom wall of the co-digestion tank 1, a water inlet pipe 32 fixedly arranged at the water inlet of the bottom pipe 31, a first spray head 33 fixedly arranged on the top of the bottom pipe 31, and an annular pipe 34 fixedly arranged on the inner cavity wall of the co-digestion tank 1. The bottom pipe 31 is arranged in a spiral line. There are multiple first spray heads 33, and the multiple first spray heads 33 are evenly distributed on the bottom pipe 31. The water inlet pipe 32 fixedly penetrates through the outer wall of the co-digestion tank 1. The outer circumference of the annular pipe 34 is equal to the inner circumference of the co-digestion tank 1. A second spray head 35 is fixedly arranged at the bottom of the annular pipe 34, and the second spray head 35 is arranged obliquely. There are multiple second spray heads 35, and the multiple second spray heads 35 are arranged in a circumferential array at the bottom of the annular pipe 34. A communicating pipe 36 is fixedly connected between the water inlet pipe 32 and the annular pipe 34, and an electromagnetic valve 37 is fixedly connected inside the communicating pipe 36. When it is necessary to discharge the sediment at the bottom of the co-digestion tank 1, one end of the water inlet pipe 32 away from the bottom pipe 31 is connected to the water outlet of the water transfer pump. Water is transmitted to the inside of the bottom pipe 31 through the water inlet pipe 32, and the first spray head 33 sprays from bottom to top to disperse the sediment at the bottom of the co-digestion tank 1. When the thickness of the sediment at the bottom of the co-digestion tank 1 is relatively high, the communicating pipe 36 and the electromagnetic valve 37 transfer the water to the inside of the annular pipe 34, and the second spray head 35 sprays the water obliquely downward to further impact the sediment, and then discharges it through the slag discharge pipe 6 and the slag discharge valve 8, so as to facilitate the cleaning of the sediment deposited at the bottom of the co-digestion tank 1.

[0027] Please refer to Figure 1 , a feed inlet 4 is fixedly connected and communicated with the outer bottom of the co-digestion tank 1. The feed inlet 4 is connected to the discharge outlet of the material transfer pump, so as to transfer the material into the co-digestion tank 1. And the feed inlet 4 and the slag discharge pipe 6 are symmetrically distributed. A liquid discharge pipe 5 is fixedly connected and communicated with the middle area of the outer wall of the co-digestion tank 1. A valve 7 is fixedly arranged inside the liquid discharge pipe 5. After the material inside the co-digestion tank 1 precipitates, the liquid discharge pipe 5 and the valve 7 facilitate the discharge of the middle liquid inside the co-digestion tank 1.

[0028] Please refer to Figure 1 , a safety water seal 9 is fixedly connected and communicated with the top of the co-digestion tank 1. A biogas collection pipe 10 is fixedly connected and communicated with the top of the safety water seal 9. The safety water seal 9 and the biogas collection pipe 10 facilitate the transfer and discharge of the biogas inside the co-digestion tank 1.

[0029] Please refer to Figure 2 and Figure 4, the stirring assembly 2 includes a motor 21 fixedly arranged at the top of the co-digestion tank 1, a shaft rod 22 fixedly arranged at the output end of the motor 21, and a stirring auger 23 fixedly arranged on the outer wall of the shaft rod 22. The motor 21 is located at the center of the top of the co-digestion tank 1. The shaft rod 22 is rotatably connected to the co-digestion tank 1. After the motor 21 operates, the shaft rod 22 drives the stirring auger 23 to rotate, turning the materials inside the co-digestion tank 1.

[0030] Please refer to Figure 4 , a sleeve 24 is fixedly connected to the outer side wall of the shaft rod 22. An upper connecting rod 25 is fixedly connected to the outer side wall of the sleeve 24. There are three upper connecting rods 25, and the three upper connecting rods 25 are distributed in a circumferential array outside the sleeve 24. One end of the upper connecting rod 25 away from the sleeve 24 is fixedly connected to a vertical rod 27. A lower connecting rod 28 is fixedly connected to the outer side of the bottom of the vertical rod 27. One end of the lower connecting rod 28 away from the vertical rod 27 is fixedly connected to an inner ring plate 29. A stirring rod 210 is fixedly connected to the outer side wall of the inner ring plate 29. A heating plate 11 is fixedly arranged on the inner side wall of the co-digestion tank 1. There are three heating plates 11, and the three heating plates 11 are distributed in a circumferential array inside the co-digestion tank 1. After the heating plate 11 operates, the temperature inside the co-digestion tank 1 rises accordingly. The sleeve 24 drives the upper connecting rod 25 to rotate, and the vertical rod 27, the lower connecting rod 28, the inner ring plate 29, and the stirring rod 210 stir and mix the materials inside the co-digestion tank 1.

[0031] Please refer to Figure 4 , an outer ring plate 26 is rotatably connected to the inner side wall of the co-digestion tank 1, and the outer ring plate 26 is fixedly connected to the upper connecting rod 25. The outer ring plate 26 increases the rotation stability of the upper connecting rod 25.

[0032] Please refer to Figure 4 , a inner rod 211 is fixedly connected to the center of the bottom of the upper connecting rod 25, and the inner rod 211 is fixedly connected to the top of the lower connecting rod 28. An L-shaped stirring rod 212 is fixedly arranged between the inner rod 211 and the vertical rod 27. The number of the inner rods 211 is equal to that of the upper connecting rods 25. The inner rods 211 and the L-shaped stirring rods 212 further stir the materials inside the co-digestion tank 1.

[0033] Working principle: First, the pumping system transports the pre-mixed and crushed slurry to the inside of the co-digestion tank 1 through the feed port 4. The motor 21 operates, and the shaft rod 22 drives the stirring auger 23 to rotate, causing the slurry at the bottom of the co-digestion tank 1 to turn upward. At the same time, the sleeve 24 drives the upper connecting rod 25 to rotate, and the outer ring plate 26 increases the stability of the rotation of the upper connecting rod 25. The vertical rod 27 drives the lower connecting rod 28 to rotate, and the inner ring plate 29 drives the stirring rod 210 to stir the slurry inside the co-digestion tank 1. Secondly, the inner rod 211 and the L-shaped stirring rod 212 further stir the slurry inside the co-digestion tank 1 to ensure uniform mixing of the materials and promote the decomposition of microorganisms. The biogas generated inside the co-digestion tank 1 is transported from bottom to top and transferred to a suitable collection tank through the safety water seal 9 and the biogas collection pipe 10;

[0034] The liquid discharged from the middle area of the co-digestion tank 1 is discharged through the liquid discharge pipe 5 and the valve 7. When cleaning the materials deposited at the bottom of the co-digestion tank 1, one end of the water inlet pipe 32 away from the bottom pipe 31 is connected to the water outlet of the water pump, and water is transported to the inside of the bottom pipe 31 through the water inlet pipe 32 and sprayed upward through the first spray head 33 to wash away the deposited sludge or materials. When the height of the substances deposited at the bottom of the co-digestion tank 1 is relatively high, the solenoid valve 37 operates, and part of the water transported by the water inlet pipe 32 is transported to the inside of the annular pipe 34 through the communication pipe 36. The second spray head 35 makes the water spray obliquely to further impact the deposited substances. Subsequently, the mixture of the washed substances and water is discharged through the slag discharge pipe 6 and the slag discharge valve 8.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0037] It is understandable that those of ordinary skill in the art can make equivalent substitutions or changes based on the technical solution of the present utility model and its inventive concept, and all such changes or substitutions shall fall within the protection scope of the present utility model.

Claims

1. A kitchen waste sludge collaborative treatment device, characterized in that: The invention comprises a cooperative digestion tank (1), a stirring assembly (2) capable of stirring and mixing slurry inside the cooperative digestion tank (1), a sludge cleaning assembly (3) for cleaning sludge deposited on the bottom wall of the cooperative digestion tank (1), and a slag discharge pipe (6) for discharging slag from the bottom of the cooperative digestion tank (1), wherein a slag discharge valve (8) is fixedly arranged inside the slag discharge pipe (6); the sludge cleaning assembly (3) comprises a bottom pipe (31) fixedly arranged on the bottom wall of the cooperative digestion tank (1), a water inlet pipe (32) fixedly arranged at the water inlet of the bottom pipe (31), A first nozzle (33) is fixedly mounted on the top of the bottom pipe (31), and an annular pipe (34) is fixedly mounted on the inner wall of the cooperative digestion tank (1); the water inlet pipe (32) is fixedly mounted through the outer wall of the cooperative digestion tank (1); a second nozzle (35) is fixedly mounted on the bottom of the annular pipe (34), and the second nozzle (35) is arranged in an inclined shape; a connecting pipe (36) is fixedly connected between the water inlet pipe (32) and the annular pipe (34); and a solenoid valve (37) is fixedly connected to the inside of the connecting pipe (36).

2. The device for co-processing kitchen waste sludge according to claim 1, characterized in that: The outer side of the bottom of the cooperative digestion tank (1) is fixedly connected to a feed port (4), and the feed port (4) and the slag discharge pipe (6) are symmetrically distributed. The middle area of ​​the outer side wall of the cooperative digestion tank (1) is fixedly connected to a liquid discharge pipe (5), and a valve (7) is fixedly provided inside the liquid discharge pipe (5).

3. The device for coordinating the treatment of kitchen waste and sludge according to claim 1, characterized in that: The top of the cooperative digestion tank (1) is fixedly connected to a safety water seal (9), and the top of the safety water seal (9) is fixedly connected to a biogas collection pipe (10).

4. The device for co-processing kitchen waste sludge according to claim 1, characterized in that: The stirring assembly (2) comprises a motor (21) fixedly mounted on the top of the cooperative digestion tank (1), a shaft (22) fixedly mounted on the output end of the motor (21), and a stirring auger (23) fixedly mounted on the outer wall of the shaft (22); the shaft (22) is rotatably connected to the cooperative digestion tank (1).

5. The device for co-processing kitchen waste sludge according to claim 4, characterized in that: The outer wall of the shaft rod (22) is fixedly connected to a sleeve (24), the outer wall of the sleeve (24) is fixedly connected to an upper connecting rod (25), the end of the upper connecting rod (25) away from the sleeve (24) is fixedly connected to a vertical rod (27), the bottom outer side of the vertical rod (27) is fixedly connected to a lower connecting rod (28), the end of the lower connecting rod (28) away from the vertical rod (27) is fixedly connected to an inner ring plate (29), the outer wall of the inner ring plate (29) is fixedly connected to a stirring rod (210), and the inner wall of the collaborative digestion tank (1) is fixedly provided with a heating plate (11).

6. The device for co-processing kitchen waste sludge according to claim 4, characterized in that: The inner side wall of the cooperative digestion tank (1) is rotatably connected to an outer ring plate (26), and the outer ring plate (26) is fixedly connected to the upper connecting rod (25).

7. The device for co-processing kitchen waste and sludge according to claim 5, characterized in that: An inner rod (211) is fixedly connected to the center of the bottom of the upper connecting rod (25), and the inner rod (211) is fixedly connected to the top of the lower connecting rod (28). An L-shaped stirring rod (212) is fixedly arranged between the inner rod (211) and the vertical rod (27).

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