Filtering device as well as fermentation bin and kitchen garbage treatment equipment applying same

Abstract

The utility model relates to the technical field of high-temperature aerobic fermentation of kitchen waste, in particular to a filtering device and a fermentation bin and kitchen waste treatment equipment applying the filtering device, which comprises a heat-conducting oil filtering pump, a filter is fixedly mounted at the bottom of the heat-conducting oil filtering pump, a heat-conducting oil inlet valve is fixedly mounted at the front end of the heat-conducting oil filtering pump, and a heat-conducting oil outlet valve is fixedly mounted at the rear end of the heat-conducting oil filtering pump. A heat conduction oil outlet valve is fixedly installed on the front face of the filter, the front end of the heat conduction oil inlet valve is in threaded connection with a first metal hose, the front end of the first metal hose is in threaded connection with a stainless steel pipe, and the left end of the stainless steel pipe is in threaded connection with a first three-way pipe; by means of the design, the carbon residue value can be effectively reduced, the service life of heat conduction oil is prolonged, meanwhile, the scheme of online cleaning and filtering is adopted, the heat conduction oil can be continuously used under the condition that the heat conduction oil is not replaced, and therefore the operation cost of an enterprise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-temperature aerobic fermentation of kitchen waste, and particularly relates to a filtering device, a fermentation bin applying the device, and a kitchen waste treatment device. Background Art

[0002] In the field of high-temperature aerobic fermentation of kitchen waste, the heating methods of the fermentation bin include electric heating plates, hot air blowers, air energy, heat-conducting oil, etc. Heat-conducting oil heating has the advantages of stable heating temperature, low energy consumption, and long heat duration. However, there are many hazards if the heat-conducting oil system is not cleaned in time when coking occurs. Generally speaking, during the long-term high-temperature operation of the heat-conducting oil, due to the aging of the heat-conducting oil and the decline of its thermal stability, the occurrence of coking problems is very common. Although the coking problem of the heat-conducting oil is the last thing customers want to happen, there is currently no good way to completely prevent the generation of heat-conducting oil coking.

[0003] Currently, the high-temperature aerobic fermentation bin for kitchen waste adopts the heating method of heat-conducting oil sandwich circulation heating. The heating pipes are located at the bottom oil layer of the fermentation bin and are made of stainless steel, which has the advantages of stable heating temperature, low energy consumption, and long heat duration. However, during the continuous heating process of the heat-conducting oil, problems such as deterioration and increased residual carbon will occur. The specific technical problems are as follows:

[0004] (1) Increase in residual carbon value: The heat-conducting oil will gradually deteriorate during long-term high-temperature use, resulting in an increase in residual carbon, acid value, and a decrease in flash point. When the residual carbon value is too high, the service life of the heat-conducting oil will be shortened.

[0005] (2) High operating cost: For enterprises with large systems, the cost of replacing new heat-conducting oil is relatively high.

[0006] In summary, heat-conducting oil filtration can ensure the stable performance of the heat-conducting oil, extend its service life, improve the cleaning effect, and reduce the operating cost, which is an important measure to maintain the normal operation of the heat-conducting oil system. Content of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model designs a filtering device, a fermentation bin applying the device, and a kitchen waste treatment device. The device aims to solve the technical problems that during the continuous heating process of the heat-conducting oil in the prior art, problems such as deterioration and increased residual carbon will occur. When the residual carbon value is too high, the service life of the heat-conducting oil will be shortened, and the cost of replacing new heat-conducting oil is relatively high.

[0008] To achieve the above object, the utility model provides the following technical solutions:

[0009] A filtering device includes a heat-conducting oil filtering pump. A filter is fixedly installed at the bottom of the heat-conducting oil filtering pump. A heat-conducting oil inlet valve is fixedly installed at the front end of the heat-conducting oil filtering pump. A heat-conducting oil outlet valve is fixedly installed on the front surface of the filter. The front end of the heat-conducting oil inlet valve is threadedly connected to a first metal hose. The front end of the first metal hose is threadedly connected to a stainless steel pipe. The left end of the stainless steel pipe is threadedly connected to a first three-way pipe. The front end of the heat-conducting oil outlet valve is threadedly connected to a second metal hose. The front end of the second metal hose is threadedly connected to a second three-way pipe. Heat-conducting oil control valves are threadedly connected to both the front and rear ends of the first three-way pipe and the second three-way pipe. The left ends of multiple groups of the heat-conducting oil control valves are all threadedly connected to a third metal hose. The tops of two groups of the third metal hoses are both threadedly connected to oil guide pipes. Maintenance valves are threadedly connected to the tops of multiple groups of the oil guide pipes. Multiple groups of pipe brackets are fixedly installed on the outer sides of the stainless steel pipe, the first three-way pipe, and the second three-way pipe.

[0010] As a preferred solution of the present utility model, an installation base plate is fixedly installed at the bottom of the filter, and a maintenance door is rotatably connected to the left side of the filter.

[0011] As a preferred solution of the present utility model, an installation cylinder is fixedly installed inside the filter. A filter screen cylinder is movably installed inside the installation cylinder. A buffer cylinder is fixedly installed inside the installation cylinder and outside the filter screen cylinder. The output end of the heat-conducting oil filtering pump is connected to the inside of the installation cylinder through an oil delivery pipe. The rear end of the heat-conducting oil outlet valve is fixedly connected to a sealing cover.

[0012] As a preferred solution of the present utility model, a positioning spring is fixedly installed at the rear end inside the installation cylinder. The front end of the positioning spring is fixedly connected to a positioning plate. A first sealing ring is sleeved on the outside of the positioning plate. The sealing cover is threadedly connected to the installation cylinder.

[0013] As a preferred solution of the present utility model, second sealing rings are sleeved on both the front and rear sides of the filter screen cylinder, and a reinforcing inner lining is fixedly connected to the inside of the filter screen cylinder.

[0014] As a preferred solution of the present utility model, a spiral flow channel is provided inside the buffer cylinder, and oil outlet holes are spaced apart between the spiral flow channels on the outside of the buffer cylinder.

[0015] The present utility model also provides a fermentation tank, including the filtering device described in any one of the above.

[0016] The present utility model also provides a kitchen waste treatment device, including the fermentation tank described above.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] Through design, when the heat-conducting oil needs to be filtered and purified, the heat-conducting oil filtration pump in the heat-conducting oil filtration device is started. Under the action of the pump, the heat-conducting oil in the tank starts to circulate in the system. The heat-conducting oil enters the heat-conducting oil filtration pump through the heat-conducting oil inlet valve, and is pumped into the interior of the installation cylinder through the connection of the oil delivery pipe. The flow rate of the heat-conducting oil is reduced by the flow-slowing cylinder, allowing the heat-conducting oil to stay in the interior of the installation cylinder sufficiently to improve the filtration effect. Impurities such as coke produced during the operation of the heat-conducting oil are filtered out through the filter mesh cylinder. Subsequently, the filtered clean heat-conducting oil enters the tank heating system again through the heat-conducting oil outlet valve, realizing the circulating filtration of the heat-conducting oil, effectively reducing the carbon residue value, extending the service life of the heat-conducting oil. At the same time, an on-line cleaning and filtration solution is adopted, which can continue to use the heat-conducting oil without replacing the heat-conducting oil, thereby reducing the operating cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the structure of the heat-conducting oil filtration pump and the filter of the present utility model;

[0021] Figure 3 is a schematic diagram of the internal structure of the filter of the present utility model;

[0022] Figure 4 is Figure 3 the enlarged schematic diagram at A in

[0023] In the figure: 1. Heat-conducting oil filtration pump; 2. Filter; 201. Installation bottom plate; 202. Maintenance door; 203. Installation cylinder; 204. Filter mesh cylinder; 205. Flow-slowing cylinder; 206. Oil delivery pipe; 207. Sealing cover; 208. Positioning spring; 209. Positioning plate; 210. First sealing ring; 211. Second sealing ring; 212. Reinforcing inner lining; 213. Spiral flow channel; 214. Oil outlet hole; 3. Heat-conducting oil inlet valve; 4. Heat-conducting oil outlet valve; 5. First metal hose; 6. Stainless steel pipe; 7. First three-way pipe; 8. Second metal hose; 9. Second three-way pipe; 10. Heat-conducting oil control valve; 11. Third metal hose; 12. Oil guide pipe; 13. Maintenance valve; 14. Pipeline support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment:

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0027] A filtering device includes a heat transfer oil filtering pump 1. A filter 2 is fixedly installed at the bottom of the heat transfer oil filtering pump 1. A heat transfer oil inlet valve 3 is fixedly installed at the front end of the heat transfer oil filtering pump 1. A heat transfer oil outlet valve 4 is fixedly installed on the front surface of the filter 2. A first metal hose 5 is threadedly connected to the front end of the heat transfer oil inlet valve 3. A stainless steel pipe 6 is threadedly connected to the front end of the first metal hose 5. A first three-way pipe 7 is threadedly connected to the left end of the stainless steel pipe 6. A second metal hose 8 is threadedly connected to the front end of the heat transfer oil outlet valve 4. A second three-way pipe 9 is threadedly connected to the front end of the second metal hose 8. Heat transfer oil control valves 10 are threadedly connected to both the front and rear ends of the first three-way pipe 7 and the second three-way pipe 9. A third metal hose 11 is threadedly connected to the left end of each group of heat transfer oil control valves 10. Guide oil pipes 12 are threadedly connected to the top ends of two groups of third metal hoses 11. Maintenance valves 13 are threadedly connected to the top ends of multiple groups of guide oil pipes 12. Multiple groups of pipe brackets 14 are fixedly installed on the outer sides of the stainless steel pipe 6, the first three-way pipe 7, and the second three-way pipe 9.

[0028] First, an installation base plate 201 is fixedly installed at the bottom of the filter 2. A maintenance door 202 is rotatably connected to the left side of the filter 2. The filter 2 is installed and fixed through the installation base plate 201, and the maintenance door 202 can be opened to regularly clean the inside of the filter 2.

[0029] Furthermore, an installation cylinder 203 is fixedly installed inside the filter 2. A filter mesh cylinder 204 is movably installed inside the installation cylinder 203. A slow flow cylinder 205 is fixedly installed inside the installation cylinder 203 and outside the filter mesh cylinder 204. The output end of the heat transfer oil filtering pump 1 is connected to the inside of the installation cylinder 203 through an oil delivery pipe 206. A cover 207 is fixedly connected to the rear end of the heat transfer oil outlet valve 4. When the heat transfer oil filtering pump 1 is started, the heat transfer oil is pumped into the inside of the installation cylinder 203 through the connection of the oil delivery pipe 206. The slow flow cylinder 205 is used to reduce the flow rate of the heat transfer oil, allowing the heat transfer oil to fully stay inside the installation cylinder 203 to improve the filtering effect. Impurities such as coke produced during the operation of the heat transfer oil are filtered out through the filter mesh cylinder 204. Subsequently, the filtered clean heat transfer oil enters the tank body heating system again through the heat transfer oil outlet valve 4.

[0030] Then, a positioning spring 208 is fixedly installed at the rear end inside the installation cylinder 203. At the front end of the positioning spring 208, a positioning plate 209 is fixedly connected. A first sealing ring 210 is sleeved outside the positioning plate 209. The cover 207 is threadedly connected to the installation cylinder 203. After the cover 207 is installed on the front of the installation cylinder 203, under the extrusion of the positioning spring 208, the filter screen cylinder 204 is positioned and installed inside the installation cylinder 203 through the positioning plate 209. After the sediment is blocked and accumulated by the filter screen cylinder 204, the cover 207 is regularly unscrewed to clean the inside of the installation cylinder 203, realizing the circulating filtration of the heat-conducting oil.

[0031] Furthermore, second sealing rings 211 are sleeved on both the front and rear sides of the filter screen cylinder 204. A reinforcing inner lining 212 is fixedly connected to the inner side of the filter screen cylinder 204. The second sealing rings 211 ensure the tightness at both ends after the filter screen cylinder 204 is installed. At the same time, the structural strength of the inner side of the filter screen cylinder 204 is improved by strengthening the inner side, making it not easy to deform and greatly increasing the service life.

[0032] Among them, a spiral flow channel 213 is provided inside the slow-flow cylinder 205. Oil outlet holes 214 are spaced apart between the spiral flow channels 213 on the outside of the slow-flow cylinder 205. After the heat-conducting oil enters the inside of the installation cylinder 203, it enters the spiral flow channel 213 inside the slow-flow cylinder 205 to decelerate, so that it fully stays inside the installation cylinder 203. While the heat-conducting oil flows in the spiral flow channel 213, it is sprayed out through multiple groups of oil outlet holes 214, and impurities such as coke produced during the operation of the heat-conducting oil are filtered out through the filter screen cylinder 204. The filtered heat-conducting oil enters the inside of the filter screen cylinder 204, and then is discharged from the front end of the filter screen cylinder 204 and enters the heat-conducting oil outlet valve 4, and then enters the heating system of the silo body again, realizing the circulating filtration of the heat-conducting oil.

[0033] The present utility model also provides a fermentation silo, including a filtering device.

[0034] The present utility model also provides a kitchen waste treatment device, including a fermentation silo. The silo body of the fermentation silo is designed in a W shape. The whole heat-conducting oil filtering device is located at the middle position at the bottom of the W-shaped silo body. The heat-conducting oil in the fermentation silo is distributed in the silo through the third metal hose 11 and the stainless steel pipe 6. The stainless steel pipe 6, the first three-way pipe 7 and the second three-way pipe 9 are fixedly installed in the silo body by the pipe support 14. The left and right of the W-shaped silo body are independent silo bodies, with separate heat-conducting systems, and can circulate separately in the left and right silos.

[0035] In this embodiment, the implementation scenario is specifically as follows: When the heat transfer oil needs to be filtered and purified, the heat transfer oil filtration pump 1 in the heat transfer oil filtration device is started. Under the action of the pump, the heat transfer oil in the tank starts to circulate in the system. The heat transfer oil enters the heat transfer oil filtration pump 1 through the heat transfer oil inlet valve 3, and is pumped into the interior of the installation cylinder 203 under the connection of the oil delivery pipe 206, and enters the spiral flow channel 213 inside the slow flow cylinder 205 to decelerate, so that it stays fully inside the installation cylinder 203. While the heat transfer oil is flowing in the spiral flow channel 213, it is ejected through multiple oil outlet holes 214, and impurities such as coke produced during the operation of the heat transfer oil are filtered out through the filter mesh cylinder 204. The filtered heat transfer oil enters the inside of the filter mesh cylinder 204, and then is discharged from the front end of the filter mesh cylinder 204 and enters the heat transfer oil outlet valve 4, and enters the tank heating system again to realize the circulating filtration of the heat transfer oil. During the entire circulating filtration process of the heat transfer oil, the heat transfer oil control valve 10 and the maintenance valve 13 are installed. The heat transfer oil control valve 10 is used to control a single tank in the W-shaped fermentation tank, so as to achieve separate circulation without mutual influence. The maintenance valve 13 is mainly used to timely close the heat transfer oil circulation in the tank during manual maintenance. The entire operation process is simple and convenient. The utility model can effectively reduce the carbon residue value and extend the service life of the heat transfer oil through design. At the same time, by adopting the scheme of online cleaning and filtration, the heat transfer oil can continue to be used without replacing the heat transfer oil, thereby reducing the operating cost of the enterprise.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device, comprising a thermal oil filtering pump (1), characterized in that: A filter (2) is fixedly mounted on the bottom of the thermal oil filter pump (1), a thermal oil inlet valve (3) is fixedly mounted on the front end of the thermal oil filter pump (1), a thermal oil outlet valve (4) is fixedly mounted on the front of the filter (2), a first metal hose (5) is threadedly connected to the front end of the thermal oil inlet valve (3), a stainless steel pipe (6) is threadedly connected to the front end of the first metal hose (5), a first three-way pipe (7) is threadedly connected to the left end of the stainless steel pipe (6), a second metal hose (8) is threadedly connected to the front end of the thermal oil outlet valve (4), and the second metal hose (8) is threadedly connected to the front end of the thermal oil filter pump (1). The front end of the stainless steel pipe (6), the first three-way pipe (7) and the second three-way pipe (9) are threadedly connected to the second three-way pipe (9), the front and rear ends of the first three-way pipe (7) and the second three-way pipe (9) are threadedly connected to the heat transfer oil control valve (10), the left ends of the plurality of groups of the heat transfer oil control valves (10) are threadedly connected to the third metal hose (11), the top ends of the two groups of the third metal hoses (11) are threadedly connected to the oil guide pipe (12), the top ends of the plurality of groups of the oil guide pipes (12) are threadedly connected to the inspection valve (13), and the outer sides of the stainless steel pipe (6), the first three-way pipe (7) and the second three-way pipe (9) are fixedly installed with a plurality of pipe brackets (14).

2. A filtering device according to claim 1, characterized in that: A mounting base plate (201) is fixedly mounted on the bottom of the filter (2), and an inspection door (202) is rotatably connected to the left side of the filter (2).

3. A filtering device according to claim 1, characterized in that: A mounting cylinder (203) is fixedly installed inside the filter (2), a filter screen cylinder (204) is movably installed inside the mounting cylinder (203), a slow flow cylinder (205) is fixedly installed inside the mounting cylinder (203) and outside the filter screen cylinder (204), the output end of the thermal oil filter pump (1) is connected to the inside of the mounting cylinder (203) via an oil delivery pipe (206), and a sealing cover (207) is fixedly connected to the rear end of the thermal oil outlet valve (4).

4. A filtering device according to claim 3, characterized in that: A positioning spring (208) is fixedly installed at the rear end of the installation tube (203), and a positioning plate (209) is fixedly connected to the front end of the positioning spring (208). A first sealing ring (210) is sleeved on the outer side of the positioning plate (209), and the sealing cover (207) is threadedly connected to the installation tube (203).

5. A filtering device according to claim 3, characterized in that: The front and rear sides of the filter screen cylinder (204) are both sleeved with a second sealing ring (211), and the inner side of the filter screen cylinder (204) is fixedly connected with a reinforced lining (212).

6. A filtering device according to claim 3, characterized in that: A spiral flow channel (213) is provided on the inner side of the slow flow tube (205), and oil outlet holes (214) are provided on the outer side of the slow flow tube (205) and are spaced between the spiral flow channels (213).

7. A fermentation bin, characterized in that: It comprises a filtering device as described in any one of claims 1 to 6.

8. A kitchen waste treatment device, characterized in that: Comprising a fermentation bin as described in claim 7.

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