Solar drying system for household garbage

Abstract

The utility model relates to the technical field of garbage treatment, and discloses a household garbage solar drying system which comprises a garbage storage chamber, a first ventilation pipe, a second ventilation pipe, a deodorization device, an air heat exchanger and a solar heat collector. The garbage storage chamber comprises a bearing plate provided with a plurality of through holes, and a drainage groove is formed between the bearing plate and the foundation; the deodorization device and the air heat exchanger are both arranged outside the garbage storage chamber; the garbage storage chamber is communicated to the air heat exchanger after sequentially passing through the second ventilation pipe and the deodorization device, and the air heat exchanger is communicated to the garbage storage chamber after sequentially passing through the solar heat collector and the first ventilation pipe. According to the utility model, the traditional mechanical turning can be replaced, the water content of the household garbage can be effectively reduced, the odor emission can be reduced, and the household garbage can be continuously dried.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage disposal, in particular to a domestic garbage solar drying system. Background Art

[0002] With the rapid advancement of the modernization process of my country's towns and villages, domestic waste is increasing day by day. The composition of domestic waste is complex. Sorting can not only effectively recycle resources, but also reduce the difficulty of treatment, which is of great significance to the reduction, resource utilization and harmless treatment of waste. However, the recycled domestic waste is mixed with a large amount of kitchen waste, which has a large amount of water and contains a large number of bacteria and viruses. It not only produces stench and breeds mosquitoes and fruit flies, but also causes garbage adhesion, affects separation efficiency, and increases the difficulty and cost of the garbage sorting process. Drying domestic waste before sorting not only helps to solve the above problems, but also further reduces the volume and weight of garbage, reduces sorting costs, and optimizes the environment of garbage sorting sites.

[0003] Existing garbage drying technologies include hot air drying, mechanical dehydration drying, microwave drying, etc., but in actual application, they have the characteristics of high energy consumption and large investment, which significantly increases the cost of garbage sorting. Solar energy is an environmentally friendly green energy. Using solar energy to dry garbage can reduce dependence on fossil fuels and greenhouse gas emissions. In addition, solar drying equipment is usually simple in structure, easy to operate and maintain, and suitable for garbage disposal sites of various sizes. However, existing technologies that use solar energy for garbage disposal usually require the use of special machinery for turning the pile, and do not consider the impact of odor emissions during the drying process on the site.

[0004] Therefore, how to provide a solar drying system for domestic waste that can effectively reduce odor emissions and does not require mechanical turning of the pile is an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the utility model provides a solar drying system for domestic waste to solve the problem that the existing waste treatment using solar energy requires the use of special machinery for turning the pile, the process is complicated, and the odor emission during the treatment process affects the surrounding environment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A domestic waste solar drying system comprises a waste storage room, a first ventilation pipe, a second ventilation pipe, a deodorizing device, an air heat exchanger and a solar collector;

[0008] Wherein, the garbage storage chamber includes a load-bearing plate with a plurality of through holes, and a drainage groove is provided between the load-bearing plate and the foundation; the deodorizing device and the air heat exchanger are both arranged outside the garbage storage chamber; the garbage storage chamber is connected to the air heat exchanger via the second ventilation pipe and the deodorizing device in sequence, and the air heat exchanger is connected to the garbage storage chamber via the solar collector and the first ventilation pipe in sequence.

[0009] Preferably, the first ventilation pipe includes a first end and a second end; the first end is installed at the bottom of the load-bearing plate, and the first end is provided with a plurality of through holes; the second end extends to the outside of the garbage storage room and is connected to the solar collector, and the second end is provided with a first fan.

[0010] Preferably, the second ventilation pipe includes a first end and a second end; the first end is located inside the garbage storage chamber and installed on a side away from the load-bearing plate, and the first end is provided with a plurality of through holes; the second end extends to the outside of the garbage storage chamber and is connected to the deodorization device, and the second end is provided with a second fan.

[0011] Preferably, the air heat exchanger is provided with a dirty air inlet and a dirty air outlet, the dirty air inlet is connected to the gas outlet of the deodorizing device and a third fan is provided on the connecting pipe, and the dirty air outlet is connected to the outdoors.

[0012] Preferably, the air heat exchanger is provided with a fresh air inlet and a fresh air outlet, the fresh air inlet is connected to the outside, and the fresh air outlet is connected to the solar collector.

[0013] Preferably, a controller is further included, and the deodorizing device and the air heat exchanger are both electrically connected to the controller.

[0014] Preferably, the first fan, the second fan and the third fan are all electrically connected to the controller.

[0015] Preferably, air temperature and humidity sensors are provided on the upper interior of the garbage storage room, at the fresh air outlet of the air heat exchanger, and at the outlet end of the solar collector; soil temperature and humidity sensors are provided inside the domestic garbage in the garbage storage room; and the air temperature and humidity sensors and the soil temperature and humidity sensors are electrically connected to the controller.

[0016] Preferably, a first solenoid valve is provided on the connecting pipe between the air heat exchanger and the solar collector; a branch pipe is provided between the air heat exchanger and the second end of the first ventilation duct, and a second solenoid valve is provided on the branch pipe; the first solenoid valve and the second solenoid valve are both electrically connected to the controller.

[0017] The utility model provides a domestic waste solar drying system, which has the following beneficial effects compared with the prior art:

[0018] The utility model can preliminarily reduce the water content of domestic garbage by arranging a drainage ditch between the load-bearing plate and the foundation, and the load-bearing plate is provided with a through hole, which is used in conjunction with the first ventilation pipe and the second ventilation pipe to allow the gas in the garbage storage room to flow fully, replacing the traditional mechanical pile turning.

[0019] The utility model allows the gas in the garbage storage room to enter the deodorization device for deodorization treatment through the second ventilation pipe, thereby reducing odor emissions, thereby reducing the breeding of mosquitoes and fruit flies, and killing bacteria and viruses. The gas treated by the deodorization device enters the air heat exchanger, and the heat of the high-temperature gas can be reused. Solar energy is used as the main drying energy source, and hot air is passed into the garbage storage room through the first ventilation pipe, which can further reduce the water content of domestic garbage and continuously dry the domestic garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of the utility model domestic garbage solar drying system;

[0022] Figure 2 It is a cross-sectional view of the garbage storage chamber part of the utility model.

[0023] In the figure: 100-garbage storage room, 110-assembled greenhouse, 111-side wall, 112-support column, 120-drainage trough, 130-load-bearing plate, 140-support, 150-slope, 200-first ventilation duct, 300-second ventilation duct, 400-deodorization device, 500-air heat exchanger, 510-dirty air outlet, 520-fresh air inlet, 600-solar collector, 710-first fan, 720-second fan, 730-third fan, 800-controller, 810-air temperature and humidity sensor, 820-soil temperature and humidity sensor, 830-first solenoid valve, 840-second solenoid valve, 900-branch pipe. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present application.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] like Figure 1 As shown, the utility model is a domestic waste solar drying system, comprising a waste storage chamber 100, a first ventilation pipe 200, a second ventilation pipe 300, a deodorizing device 400, an air heat exchanger 500 and a solar collector 600.

[0029] In some embodiments of the present invention, Figure 2 As shown, the garbage storage room 100 is a space formed by a foundation and an assembled greenhouse 110, wherein the assembled greenhouse 110 can be an assembled plastic greenhouse with shoulders. Specifically, the assembled plastic greenhouse with shoulders can be constructed using DN25 steel pipes, the bottom end of which is buried 500mm underground and fixed, the spacing between adjacent steel pipe frames is 0.75m, and the covering material is PE film.

[0030] Optionally, the assembled shed 110 includes side walls 111 and support columns 112, the support columns 112 are vertically fixed to the ground, and the side walls 111 are detachably fixed to the frame, for example, they can be fixed with hinges, so that the side walls 111 can be flipped over and fixed to the support columns 112 when a machine enters and exits the garbage storage room 100.

[0031] Optionally, a plurality of drainage grooves 120 are provided on the foundation forming the garbage storage room 100, and a load-bearing plate 130 for carrying domestic garbage is laid on the top of the drainage groove 120. The load-bearing plate 130 is provided with through holes to facilitate the discharge of garbage leachate into the drainage groove 120. Preferably, the drainage groove 120 is V-shaped, and the load-bearing plate 130 is made of injection molding material.

[0032] Optionally, support members 140 are provided between adjacent drainage grooves 120 to further provide support for the load-bearing plate 130 ; and a slope 150 is provided on the ground outside the garbage storage chamber 100 to facilitate machinery to enter and exit the garbage storage chamber 100 .

[0033] It can be understood that the present invention uses the assembled greenhouse 110 to form the garbage storage room 100, which is only an example. In actual operation, other forms can also be used to form the garbage storage room 100, and there is no special limitation on this.

[0034] In some embodiments of the present invention, the first ventilation duct 200 includes a first end and a second end, wherein the first end of the first ventilation duct 200 is located inside the garbage storage chamber 100 and is installed at the bottom of the load-bearing plate 130, and the installation method can be fixed to the through hole of the load-bearing plate 130 by a strap or wire, etc., and there is no special limitation on this. Further, a plurality of through holes are opened at the first end of the first ventilation duct 200. Preferably, the through holes face one side of the drain groove 120, and the aperture of the through holes can be 1 cm, and the interval between adjacent through holes can be 10 cm. The aperture size and interval distance of the through holes can be adjusted according to actual conditions.

[0035] Optionally, the second end of the first ventilation duct 200 extends to the outside of the garbage storage chamber 100 and is connected to the solar collector 600; further, the second end of the first ventilation duct 200 can also be connected to the fresh air outlet of the air heat exchanger 500; further, the second end of the first ventilation duct 200 is provided with a first fan 710, and under the action of the first fan 710, dry hot air can be more efficiently introduced into the garbage storage chamber 100.

[0036] In some embodiments of the present invention, the second ventilation pipe 300 includes a first end and a second end; the first end of the second ventilation pipe 300 is located inside the garbage storage chamber 100 and is installed on a side away from the load-bearing plate 130, that is, the second ventilation pipe 300 is arranged above the domestic garbage, and a plurality of through holes are opened at the first end. Preferably, the aperture of the through hole can be 1 cm, and the interval between adjacent through holes can be 10 cm. The aperture size and interval distance of the through holes can be adjusted according to actual conditions.

[0037] Optionally, the second end of the second ventilation duct 300 extends to the outside of the garbage storage chamber 100 and is connected to the deodorization device 400, and a second fan 720 is provided at the second end of the second ventilation duct 300. Under the action of the second fan 720, the hot and humid gas in the garbage storage chamber 100 can be more efficiently discharged to the deodorization device 400.

[0038] It can be understood that the length directions of the first ventilation duct 200 and the second ventilation duct 300 are consistent with the length direction of the garbage storage chamber 100, and multiple rows of first ventilation ducts 200 and multiple rows of second ventilation ducts 300 are arranged along the width direction of the garbage storage chamber 100 to enhance gas flow.

[0039] In some embodiments of the present invention, the deodorizing device 400 is disposed outside the garbage storage chamber 100, and an ozone generator and an ultraviolet lamp are disposed inside the deodorizing device 400 to eliminate odor from the second ventilation pipe 300 and kill bacteria and viruses.

[0040] In some embodiments of the present invention, the air heat exchanger 500 is disposed outside the garbage storage chamber 100 , and the air heat exchanger 500 is provided with a dirty air inlet, a dirty air outlet 510 , a fresh air inlet 520 and a fresh air outlet.

[0041] Among them, the dirty air outlet 510 and the fresh air inlet 520 are both connected to the outdoor air, the gas outlet of the deodorizing device 400 is connected to the dirty air inlet, and a third fan 730 is arranged on the connecting pipe, so as to efficiently transport the deodorized high-temperature gas to the air heat exchanger 500; the fresh air outlet is connected to the inlet of the solar collector 600, and the deodorized high-temperature gas enters the air heat exchanger 500 and exchanges heat with the fresh air. The fresh air with increased temperature enters the solar collector 600 and continues to heat up before entering the garbage storage room 100 through the first ventilation pipe 200.

[0042] In some embodiments of the utility model, air temperature and humidity sensors 810 are provided on the upper interior of the garbage storage chamber 100, at the fresh air outlet of the air heat exchanger 500, at the outlet end of the solar collector 600, and outside the garbage storage chamber 100, and a soil temperature and humidity sensor 820 is provided inside the domestic garbage in the garbage storage chamber 100; the air temperature and humidity sensor 810 and the soil temperature and humidity sensor 820 are both electrically connected to the controller 800.

[0043] It can be understood that the air temperature and humidity sensor 810 and the soil temperature and humidity sensor 820 transmit the measured data to the controller 800, and the controller 800 controls the operation of each device according to the data changes.

[0044] In some embodiments of the utility model, a first solenoid valve 830 is provided on the connecting pipe between the air heat exchanger 500 and the solar collector 600; a branch pipe 900 is provided between the air heat exchanger 500 and the second end of the first ventilation pipe 200, and a second solenoid valve 840 is provided on the branch pipe 900; the first solenoid valve 830 and the second solenoid valve 840 are both electrically connected to the controller 800.

[0045] It can be understood that the temperature and humidity values ​​of domestic waste are preset to meet the requirements, and the temperature and humidity values ​​of domestic waste are detected by the soil temperature and humidity sensor 820. When the temperature and humidity values ​​of domestic waste are detected to be within the preset range, the entire system does not operate, and when the temperature and humidity values ​​of domestic waste are detected to be greater than the preset value, the entire system starts to operate.

[0046] When the system is running, the first solenoid valve 830 is opened, the second solenoid valve 840 is closed, and the deodorizing device 400 and the fans are operated. The hot and humid odor in the garbage storage room 100 is pumped to the deodorizing device 400 through the second ventilation pipe 300 for deodorization treatment under the action of the second fan 720. The deodorized high-temperature gas enters the air heat exchanger 500 through the third fan 730, exchanges heat with the fresh air, and is discharged from the dirty air outlet 510.

[0047] Each air temperature and humidity sensor collects the temperature and humidity information at the corresponding position and converts the collected temperature and humidity signals into electrical signals and transmits them to the controller 800. The controller 800 calculates the corresponding water vapor pressure according to the received electrical signals and compares the water vapor pressures at various positions. If it is found that the water vapor pressure at the outlet of the solar collector 600 is greater than the water vapor pressure at the outlet of the air heat exchanger 500, the controller 800 controls the system to continue to operate. Under the action of the first fan 710, the outdoor fresh air passes through the air heat exchanger 500, the solar collector 600 and the air heat exchanger 500. After passing through the first ventilation duct 200, the air enters the garbage storage chamber 100 to dry the domestic garbage. If it is found that the water vapor pressure at the outlet of the solar collector 600 is lower than the water vapor pressure at the fresh air outlet of the air heat exchanger 500 and the water vapor pressure of the outdoor air is greater than the water vapor pressure in the garbage storage chamber 100, the first solenoid valve 830 is closed and the second solenoid valve 840 is opened. Under the action of the first fan 710, the fresh air in the air heat exchanger 500 enters the garbage storage chamber 100 through the branch pipe 900 and the first ventilation duct 200 to dry the domestic garbage.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A domestic waste solar drying system, characterized in that: It includes a garbage storage room, a first ventilation pipe, a second ventilation pipe, a deodorizing device, an air heat exchanger and a solar collector; The garbage storage room includes a load-bearing plate with a plurality of through holes, and a drainage ditch is provided between the load-bearing plate and the foundation; the deodorizing device and the air heat exchanger are both arranged outside the garbage storage room; the garbage storage room is connected to the air heat exchanger via the second ventilation pipe and the deodorizing device in sequence, and the air heat exchanger is connected to the garbage storage room via the solar collector and the first ventilation pipe in sequence.

2. The domestic waste solar drying system according to claim 1 is characterized in that: The first ventilation tube includes a first end and a second end; The first end is installed at the bottom of the load-bearing plate, and a plurality of through holes are opened in the first end; the second end extends to the outside of the garbage storage room and is connected with the solar thermal collector, and a first fan is arranged in the second end.

3. The domestic waste solar drying system according to claim 1, characterized in that: The second ventilation tube includes a first end and a second end; The first end is located inside the garbage storage room and installed on a side away from the load-bearing plate, and the first end is provided with a plurality of through holes; the second end extends to the outside of the garbage storage room and is connected to the deodorization device, and the second end is provided with a second fan.

4. The domestic waste solar drying system according to claim 1, characterized in that: The air heat exchanger is provided with a dirty air inlet and a dirty air outlet, the dirty air inlet is connected with the gas outlet of the deodorizing device and a third fan is provided on the connecting pipeline, and the dirty air outlet is connected to the outside.

5. The domestic waste solar drying system according to claim 1, characterized in that: The air heat exchanger is provided with a fresh air inlet and a fresh air outlet, wherein the fresh air inlet is connected to the outside, and the fresh air outlet is connected to the solar collector.

6. The domestic waste solar drying system according to any one of claims 1 to 5, characterized in that: It also includes a controller, and the deodorizing device and the air heat exchanger are both electrically connected to the controller.

7. The domestic waste solar drying system according to claim 6, characterized in that: Air temperature and humidity sensors are provided on the upper part of the garbage storage room, the fresh air outlet of the air heat exchanger, and the outlet end of the solar collector; A soil temperature and humidity sensor is provided inside the domestic garbage in the garbage storage room; The air temperature and humidity sensor and the soil temperature and humidity sensor are both electrically connected to the controller.

8. The domestic waste solar drying system according to claim 6, characterized in that: A first solenoid valve is provided on the communication pipe between the air heat exchanger and the solar collector; A branch pipe is provided between the air heat exchanger and the second end of the first ventilation duct, and a second solenoid valve is provided on the branch pipe; The first solenoid valve and the second solenoid valve are both electrically connected to the controller.

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