A method for treating organic wastewater from kitchen waste

Abstract

The invention discloses a method for treating organic wastewater from kitchen waste, comprising the following steps: step 1, using organic wastewater treatment equipment to transport organic wastewater formed by solid-liquid separation of kitchen waste to a preheating process through a high-pressure transport pipe pump for preheating, and discharging the preheated organic wastewater into a heating evaporation crystallization process for treatment to obtain condensed water and concentrated liquid; step 2, transporting the concentrated liquid to a rapid drying process through a high-pressure transport pump for treatment to obtain an oil-containing organic mixture and impurity-containing steam; the invention uses the preheating process for preheating, so that the organic wastewater can be quickly heated up to form steam when entering the heating evaporation crystallization process, thereby indirectly improving the treatment efficiency of the organic wastewater, and the dregs oil and granular organic matter obtained by pressing the organic mixture obtained from the concentrated liquid can be used for diesel or fertilizer, thereby further improving the applicability of the method for treating organic wastewater from kitchen waste.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste treatment, in particular to a method for treating organic wastewater from kitchen waste. Background Art

[0002] At present, when treating organic wastewater obtained after solid-liquid separation of kitchen waste, most of them are discharged directly after passing the test, which will cause waste of water resources or long-term large-scale discharge may cause groundwater pollution. Summary of the invention

[0003] In order to solve the defects of the prior art, the present invention provides a method for treating organic wastewater from kitchen waste.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention provides a method for treating organic wastewater from kitchen waste, comprising the following steps:

[0006] Step 1: using organic wastewater treatment equipment to transport the organic wastewater formed by solid-liquid separation of food waste to a preheating process through a high-pressure transport pipe pump for preheating, and the preheated organic wastewater is discharged into a heating evaporation crystallization process for treatment to obtain condensed water and concentrated liquid;

[0007] Step 2, transporting the concentrated liquid to a rapid drying process through a high-pressure transport pump to obtain an oil-containing organic mixture and impurity-containing steam;

[0008] Step 3, pressing the obtained oil-containing organic mixture to obtain dregs of oil and granular organic matter;

[0009] Step 4: transport the impurity-containing steam to the dust removal process through a pipeline to obtain powdered organic matter and high-temperature gas, and further purify the high-temperature gas to obtain water and room-temperature gas;

[0010] Step 5: Check whether the obtained condensed water and room temperature gas meet the standards. If they meet the standards, they can be discharged or used in the factory.

[0011] As a preferred technical solution of the present invention, the organic wastewater treatment equipment used in step 1 includes a mounting base, and a preheating mechanism and a heating evaporation mechanism for heating, evaporating and crystallizing the organic wastewater are provided on the top of the mounting base;

[0012] The preheating mechanism comprises a support frame arranged at the top of the mounting base, a primary preheating assembly is arranged at the top of the support frame, and a preheating guide pipe connected to the water outlet of the primary preheating assembly is arranged inside the support frame;

[0013] The heating evaporation mechanism comprises a heating box disposed on the top of the mounting base, the inner bottom wall of the heating box is provided with a first heating wire distributed in an S shape, and one side of the heating box is provided with an evaporator connected to the water outlet of the heating box.

[0014] As a preferred technical solution of the present invention, the preheating guide pipe is connected by multiple sections of V-shaped connecting pipes connected end to end, and the outer wall of the connecting pipe is provided with a secondary preheating element.

[0015] As a preferred technical solution of the present invention, the secondary preheating element includes an insulation tube sleeved on the outside of the preheating guide tube, the outer wall of the insulation tube is provided with an anti-scalding sleeve, a reserved gap is provided between the inner wall of the insulation tube and the outer wall of the preheating guide tube, and a second heating wire sleeved on the outside of the preheating guide tube is provided inside the reserved gap.

[0016] As a preferred technical solution of the present invention, the support frame includes a plurality of support rods vertically upwardly arranged at the top of the mounting base, a rectangular frame is provided at the top of the plurality of support rods, a plurality of protective struts are provided between the upper and lower horizontal bars of the rectangular frame, and the preheating guide pipe is provided inside the rectangular frame.

[0017] As a preferred technical solution of the present invention, the initial preheating assembly includes a preheating box arranged at the top of the supporting frame. The interior of the preheating box is divided into a water inlet chamber and a conversion chamber by a partition plate. A water pump is installed at the upper end of the partition plate. The inlet of the water pump is connected to a water inlet pipe extending to the lower end of the water inlet chamber. A gap of 0.5 mm is left between the water inlet pipe and the bottom wall of the water inlet chamber. The water outlet of the water pump is provided with a water outlet pipe that passes through the partition plate and extends into the conversion chamber.

[0018] As a preferred technical solution of the present invention, the inner cavities of the water inlet chamber and the conversion chamber are both provided with a third heating wire distributed in an S shape, the water outlet of the conversion chamber of the preheating box is provided with a drain pipe connected to the water inlet end of the preheating guide pipe, an electromagnetic control valve is installed on the drain pipe, and the inner walls of the water inlet chamber and the conversion chamber are both provided with a liquid level sensor and a temperature sensor.

[0019] As a preferred technical solution of the present invention, a slag removal filtering mechanism is provided at the top of the preheating box, and the slag removal filtering mechanism includes a slag removal filtering box arranged at the top of the preheating box, a water inlet is provided at the top of the slag removal filtering box, and the interior of the slag removal filtering box is connected to a slag removal positioning frame ring located below the water inlet via a bearing, the cross-section of the slag removal positioning frame ring is set to be L-shaped, and two semicircular filter boxes are provided at the top of the slag removal positioning frame ring.

[0020] As a preferred technical solution of the present invention, the inner top wall of the slag removal filter box is provided with a driving assembly for driving the slag removal positioning frame ring to rotate, the driving assembly includes a driving gear arranged inside the slag removal filter box and connected via a rotating shaft, the outer wall of the slag removal positioning frame ring is provided with a driven tooth meshing with the driving gear, and the slag removal filter box is installed with a reduction motor for driving the driving gear.

[0021] As a preferred technical solution of the present invention, the top of the slag removal filter box is provided with a slag removal port for removing the filter box, a cover plate is provided at the slag removal port, a lifting handle is provided at the top of the cover plate, a positioning block is provided on the upper edge of the slag removal positioning frame ring, and a positioning sleeve ring matching the positioning block is provided on the outer wall of the filter box.

[0022] The beneficial effects of the present invention are:

[0023] 1. The method for treating organic wastewater from kitchen waste uses a preheating process to preheat the organic wastewater, so that the organic wastewater can be quickly heated to form steam when entering the heating evaporation and crystallization process, thereby indirectly improving the treatment efficiency of the organic wastewater. The slop oil and granular organic matter obtained by pressing the organic mixture obtained from the concentrate can be used for diesel or fertilizer, further improving the applicability of the method for treating organic wastewater from kitchen waste. Finally, the condensed water obtained by testing whether it is qualified is discharged or treated again until it meets the standard before being discharged, thereby avoiding the situation where direct discharge causes waste of water resources or pollution of groundwater.

[0024] 2. This method for treating organic wastewater from kitchen waste can preheat the organic wastewater obtained by solid-liquid separation through the preheating mechanism. When it flows into the heating and evaporation mechanism, it can be quickly heated up, thereby improving the efficiency of organic wastewater treatment. The setting of the preheating component prevents the preheated organic wastewater from dropping in temperature during the circulation process, maintains the initial preheating temperature, and is even higher than the initial preheating temperature, which means that the organic wastewater can be heated more quickly and the efficiency of treating the organic wastewater is higher.

[0025] 3. In the method for treating organic wastewater from kitchen waste, when the preheated organic wastewater is preheated for the second time, the initially preheated organic wastewater flows into the interior of the preheating guide pipe, and is preheated for the second time through a second heating wire sleeved on the outside of the preheating guide pipe provided inside the reserved gap, thereby avoiding the situation where the temperature of the preheated organic wastewater drops again when it flows from the initial preheating into the interior of the heating box, thereby avoiding the situation where a longer time is required for heating inside the heating box; the setting of the insulation pipe can avoid the rapid loss of heat, and the setting of the anti-scalding sleeve can avoid scalding, thereby playing a good protective role.

[0026] 4. The method for treating organic wastewater from kitchen waste, when initially preheating the organic wastewater, the third heating wire can preheat the organic wastewater entering the water inlet chamber and the conversion chamber of the preheating box, the organic wastewater first enters the water inlet chamber of the preheating box, after a period of time, the water pump works to pump the organic wastewater into the conversion chamber of the preheating box through the water inlet pipe and the water outlet pipe, because the third heating wire inside the conversion chamber is heated, the preheating temperature of the organic wastewater inside the conversion chamber is high, and the effect of the entering organic wastewater is low, the temperature difference can be quickly compensated, and the situation that the direct preheating flows into the heating box body so that the preheating effect is poor is avoided, the electromagnetic control valve is set to control the inflow of organic wastewater, the liquid level sensor and the temperature sensor can monitor the liquid level and temperature, so as to open or close the electromagnetic control valve and the water pump.

[0027] 5. The method for treating organic wastewater from kitchen waste can remove slag before preheating the organic wastewater through the provided slag removal and filtering mechanism, thereby avoiding the situation where impurities mixed in the organic wastewater cause blockage to subsequent processes, wherein the filter box can achieve the filtering and slag removal effect. When it is necessary to discharge impurities, it is only necessary to drive the driving gear to rotate with the output shaft of the reduction motor, and the driving gear is meshed with the driven gear to rotate the slag removal positioning frame ring, thereby driving the two filter boxes to rotate. When the slag removal positioning frame ring rotates 180 degrees, the cover plate is opened to separate the positioning collar and the positioning block, and the filter box rotated to the bottom of the slag removal port can be taken out from the slag removal port to clean the waste residue, while the other filter box is just below the water inlet at the same time, so that it can filter and remove the slag, so that there is no need to stop when cleaning the waste residue, that is, it will not affect the filtering of the waste residue, so that the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a flow chart of a method for treating organic wastewater from kitchen wastes of the present invention;

[0030] Figure 2 It is a schematic structural diagram of an organic wastewater treatment device of a method for treating organic wastewater from kitchen wastes of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of a preheating guide pipe of a method for treating organic wastewater from kitchen wastes of the present invention;

[0032] Figure 4 It is a cross-sectional view of a preheating guide pipe of a method for treating organic wastewater from kitchen wastes of the present invention;

[0033] Figure 5 It is a three-dimensional cross-sectional view of a pre-heating component of a method for treating organic wastewater from kitchen wastes of the present invention;

[0034] Figure 6 It is a top cross-sectional view of a primary preheating component of a method for treating organic wastewater from kitchen wastes of the present invention;

[0035] Figure 7 It is a schematic diagram of a top view of a slag removal and filtering mechanism of a method for treating organic wastewater from kitchen wastes of the present invention;

[0036] Figure 8 It is a side sectional view of a slag removal and filtering mechanism of a method for treating organic wastewater from kitchen wastes of the present invention.

[0037] In the figure: 1. mounting base; 2. preheating mechanism; 201. supporting frame; 2011. supporting rod; 2012. rectangular frame; 2013. protective support rod; 202. initial preheating assembly; 2021. preheating box; 2022. partition plate; 2023. water inlet chamber; 2024. conversion chamber; 2025. water pump; 2026. water inlet pipe; 2027. water outlet pipe; 2028. third heating wire; 2029. drain pipe; 20211. electromagnetic control valve; 20212. liquid level sensor; 20213. temperature sensor; 203. preheating guide pipe; 2031. connection Tube; 204, secondary preheating element; 2041, insulation tube; 2042, anti-scalding sleeve; 2043, reserved gap; 2044, second heating wire; 3, heating evaporation mechanism; 301, heating box; 303, evaporator; 4, slag removal and filtering mechanism; 401, slag removal filter box; 402, water inlet; 403, slag removal positioning frame ring; 404, filter box; 405, drive assembly; 406, drive gear; 407, driven gear; 408, reduction motor; 409, slag removal port; 4011, cover plate; 4012, lifting handle; 4013, positioning block; 4014, positioning collar. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] Example: Figure 1 As shown, the present invention provides a method for treating organic wastewater from kitchen waste, comprising the following steps:

[0040] Step 1: using organic wastewater treatment equipment to transport the organic wastewater formed by solid-liquid separation of food waste to a preheating process through a high-pressure transport pipe pump for preheating, and the preheated organic wastewater is discharged into a heating evaporation crystallization process for treatment to obtain condensed water and concentrated liquid;

[0041] Step 2, transporting the concentrated liquid to a rapid drying process through a high-pressure transport pump to obtain an oil-containing organic mixture and impurity-containing steam;

[0042] Step 3, pressing the obtained oil-containing organic mixture to obtain dregs of oil and granular organic matter;

[0043] Step 4: transport the impurity-containing steam to the dust removal process through a pipeline to obtain powdered organic matter and high-temperature gas, and further purify the high-temperature gas to obtain water and room-temperature gas;

[0044] Step 5: Check whether the obtained condensed water and room temperature gas meet the standards. If they meet the standards, they are discharged or used in the factory. They can be used for greening in the factory or for cooling during processing in the factory.

[0045] During operation, the preheating process is used for preheating, so that the organic wastewater can be quickly heated up to form steam when entering the heating evaporation and crystallization process, which indirectly improves the treatment efficiency of the organic wastewater. The slop oil and granular organic matter obtained by pressing the organic mixture obtained from the concentrate can be used for diesel or fertilizer, further improving the applicability of the method for treating organic wastewater from kitchen leftovers. Finally, the condensed water obtained by testing whether it is qualified can be discharged or treated again until it meets the standards before being discharged.

[0046] Specifically, Figure 2As shown, the organic wastewater treatment equipment used in step 1 includes a mounting base 1, and a preheating mechanism 2 and a heating evaporation mechanism 3 for heating, evaporating and crystallizing the organic wastewater are provided at the top of the mounting base 1; the preheating mechanism 2 includes a support frame 201 provided at the top of the mounting base 1, and a primary preheating assembly 202 is provided at the top of the support frame 201, and a preheating guide pipe 203 connected to the water outlet of the primary preheating assembly 202 is provided inside the support frame 201; the heating evaporation mechanism 3 includes a heating box 301 provided at the top of the mounting base 1, and the inner bottom wall of the heating box 301 is provided with an S-shaped distribution A first heating wire is provided, and an evaporator 303 connected to the water outlet of the heating box 301 is provided on one side of the heating box 301. The organic wastewater obtained by solid-liquid separation can be preheated through the preheating mechanism 2. When it flows into the heating evaporation mechanism 3, it can be quickly heated up, thereby improving the efficiency of organic wastewater treatment. The setting of the preheating component prevents the preheated organic wastewater from decreasing in temperature during the circulation process, maintains the initial preheating temperature, or even higher than the initial preheating temperature, thereby allowing the organic wastewater to be heated more quickly and the efficiency of treating the organic wastewater to be higher.

[0047] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, the preheating guide pipe 203 is connected by a plurality of V-shaped connecting pipes 2031 connected end to end, and the outer wall of the connecting pipe 2031 is provided with a secondary preheating member 204, and the secondary preheating member 204 includes a heat preservation pipe 2041 sleeved on the outside of the preheating guide pipe 203, and the outer wall of the heat preservation pipe 2041 is provided with a scalding-proof sleeve 2042, and a reserved gap 2043 is provided between the inner wall of the heat preservation pipe 2041 and the outer wall of the preheating guide pipe 203, and a second heating wire 2044 sleeved on the outside of the preheating guide pipe 203 is provided inside the reserved gap 2043. During secondary preheating, the initially preheated organic wastewater flows into the interior of the preheating guide tube 203, and is preheated for the second time through a reserved gap 2043 provided inside with a second heating wire 2044 sleeved on the outside of the preheating guide tube 203, thereby avoiding the situation where the temperature of the preheated organic wastewater drops again when it flows from the initial preheating into the interior of the heating box 301, thereby avoiding the situation where a longer time is required for heating inside the heating box 301; the setting of the insulation tube 2041 can avoid the rapid loss of heat, and the setting of the anti-scalding sleeve 2042 can avoid scalding, thereby playing a good protective role.

[0048] Specifically, Figure 2As shown, the support frame 201 includes a plurality of support rods 2011 vertically upwardly arranged at the top of the mounting base 1, a rectangular frame 2012 is arranged at the top of the plurality of support rods 2011, a plurality of protective struts 2013 are arranged between the upper and lower cross bars of the rectangular frame 2012, and the preheating guide tube 203 is arranged inside the rectangular frame 2012. The setting of the rectangular frame 2012 can provide a good support for the preheating guide tube 203, and can provide a good protective effect for the preheating guide tube 203 in conjunction with the plurality of protective struts 2013, thereby preventing the preheating guide tube 203 from being damaged by foreign objects.

[0049] Specifically, Figure 2 , Figure 5 and Figure 6 As shown, the initial preheating assembly 202 includes a preheating box 2021 arranged at the top of the support frame 201. The interior of the preheating box 2021 is divided into a water inlet chamber 2023 and a conversion chamber 2024 through a partition plate 2022. A water pump 2025 is installed at the upper end of the partition plate 2022. The inlet of the water pump 2025 is connected to a water inlet pipe 2026 extending to the lower end of the water inlet chamber 2023. A 0.5 mm gap is left between the water inlet pipe 2026 and the bottom wall of the water inlet chamber 2023. The water outlet of the water pump 2025 is provided with The outlet pipe 2027 extends through the partition plate 2022 into the conversion chamber 2024. The inner cavities of the water inlet chamber 2023 and the conversion chamber 2024 are both provided with a third heating wire 2028 distributed in an S shape. The outlet of the conversion chamber 2024 of the preheating box 2021 is provided with a drain pipe 2029 connected to the water inlet end of the preheating guide pipe 203. The drain pipe 2029 is installed with an electromagnetic control valve 20211. The inner walls of the water inlet chamber 2023 and the conversion chamber 2024 are both provided with a liquid level sensor 20212 and a temperature sensor 20213. Sensor 20213, when preheating the organic wastewater, the third heating wire 2028 can preheat the organic wastewater entering the water inlet chamber 2023 and the conversion chamber 2024 of the preheating box 2021. The organic wastewater first enters the water inlet chamber 2023 of the preheating box 2021. After a period of time, the pump 2025 works to pump the organic wastewater into the conversion chamber 2024 of the preheating box 2021 through the water inlet pipe 2026 and the water outlet pipe 2027. Due to the third heating wire inside the conversion chamber 2024, the organic wastewater enters the water inlet chamber 2023 of the preheating box 2021. 2028 is heated, which makes the preheating temperature of the organic wastewater inside the conversion chamber 2024 high, and the effect of the entering organic wastewater is low, which can quickly make up for the temperature difference and avoid the situation where the preheating effect is poor after direct preheating and then flowing into the heating box 301. The setting of the electromagnetic control valve 20211 can control the inflow of organic wastewater, and the liquid level sensor 20212 and the temperature sensor 20213 can monitor the liquid level and temperature, so as to open or close the electromagnetic control valve 20211 and the water pump 2025.

[0050] Specifically, Figure 2 , Figure 7 and Figure 8 As shown, a slag removal filter mechanism 4 is provided at the top of the preheating box 2021, and the slag removal filter mechanism 4 includes a slag removal filter box 401 provided at the top of the preheating box 2021, a water inlet 402 is provided at the top of the slag removal filter box 401, and a slag removal positioning frame ring 403 located below the water inlet 402 is connected to the interior of the slag removal filter box 401 via a bearing, and the cross section of the slag removal positioning frame ring 403 is set to be L-shaped, and two semicircular filter boxes 404 are provided at the top of the slag removal positioning frame ring 403, and the inner top wall of the slag removal filter box 401 is provided with a driving slag removal positioning frame ring 40 The driving assembly 405 is rotatable, and the driving assembly 405 includes a driving gear 406 which is arranged inside the slag removal filter box 401 and connected via a rotating shaft. The outer wall of the slag removal positioning frame ring 403 is provided with a driven gear 407 which meshes with the driving gear 406. The slag removal filter box 401 is provided with a reduction motor 408 for driving the driving gear 406. The top of the slag removal filter box 401 is provided with a slag removal port 409 for removing the filter box 404. A cover plate 4011 is provided at the slag removal port 409. A lifting handle 4012 is provided at the top of the cover plate 4011. The slag removal positioning frame ring 403 is provided with a driven gear 407 which meshes with the driving gear 406. A reduction motor 408 for driving the driving gear 406 is installed on the slag removal filter box 401. 03 is provided with a positioning block 4013 on the upper edge, and a positioning ring 4014 matching the positioning block 4013 is provided on the outer wall of the filter box 404. Through the provided slag removal filtering mechanism 4, slag removal can be performed before preheating the organic wastewater, thereby avoiding the situation where impurities mixed in the organic wastewater cause blockage in subsequent processes. Among them, the filter box 404 can achieve the filtering and slag removal effect. When impurities need to be discharged, only the output shaft of the reduction motor 408 needs to drive the driving gear 406 to rotate, and the driving gear 406 is meshed with the driven gear 407, so that the slag removal positioning frame The ring 403 rotates, thereby driving the two filter boxes 404 to rotate. When the slag removal positioning frame ring 403 rotates 180 degrees, the cover 4011 is opened to separate the positioning collar 4014 and the positioning block 4013. The filter box 404 rotated to the bottom of the slag removal port 409 can be taken out from the slag removal port 409 to clean the waste slag. At the same time, the other filter box 404 is just below the water inlet 402, so it can filter and remove the slag, so there is no need to stop when cleaning the waste slag, which means that it will not affect the filtering of the waste slag, making it more efficient.

[0051] During operation, the method for treating organic wastewater from kitchen waste can preheat the organic wastewater obtained by solid-liquid separation through the preheating mechanism 2, and when it flows into the heating evaporation mechanism 3, it can quickly heat up, thereby improving the efficiency of organic wastewater treatment. The setting of the preheating component prevents the preheated organic wastewater from dropping in temperature during the circulation process, and maintains the initial preheating temperature, or even higher than the initial preheating temperature, so that the organic wastewater can be heated more quickly when heated, and the efficiency of treating organic wastewater is higher. The preheating mechanism 2 can preheat the organic wastewater obtained by solid-liquid separation, and when it flows into the heating evaporation mechanism 3, it can quickly heat up, thereby improving the efficiency of organic wastewater treatment. The setting of the heating component ensures that the temperature of the preheated organic wastewater will not drop during the circulation process, and the initial preheating temperature is maintained, or even higher than the initial preheating temperature, so that the temperature of the organic wastewater can be increased more quickly when heated, and the efficiency of treating the organic wastewater is higher. When the preheated organic wastewater is preheated for the second time, the initially preheated organic wastewater flows into the interior of the preheating guide tube 203, and the second heating wire 2044 sleeved on the outside of the preheating guide tube 203 is provided inside the reserved gap 2043 for secondary preheating, thereby avoiding the situation where the temperature of the preheated organic wastewater drops again when it flows from the initial preheating into the interior of the heating box 301, thereby avoiding the situation where it takes a longer time to heat the interior of the heating box 301;The setting of the heat preservation pipe 2041 can prevent the rapid loss of heat, and the setting of the anti-scalding sleeve 2042 can prevent scalding, which plays a good protective role. When the organic wastewater is preheated, the third heating wire 2028 can preheat the organic wastewater entering the water inlet chamber 2023 and the conversion chamber 2024 of the preheating box 2021. The organic wastewater first enters the water inlet chamber 2023 of the preheating box 2021. After a period of time, the water pump 2025 works through the water inlet pipe 2026 and the water outlet pipe 2027 to The organic wastewater is pumped into the conversion chamber 2024 of the preheating box 2021. Since the third heating wire 2028 inside the conversion chamber 2024 is heating, the preheating temperature of the organic wastewater inside the conversion chamber 2024 is high, and the effect of the organic wastewater entering is low, which can quickly make up for the temperature difference, avoiding the situation where the preheating effect is poor when the organic wastewater flows into the heating box 301 directly after preheating. The electromagnetic control valve 20211 can control the inflow of organic wastewater, and the liquid level sensor 20212 and the temperature sensor 20213 can monitor the liquid level. The electromagnetic control valve 20211 and the water pump 2025 are opened or closed by monitoring the temperature. The slag removal filtering mechanism 4 can be used to remove slag before preheating the organic wastewater, thereby avoiding the situation where impurities mixed in the organic wastewater cause blockage in subsequent processes. Among them, the filter box 404 can filter and remove slag. When impurities need to be discharged, only the output shaft of the reduction motor 408 needs to drive the driving gear 406 to rotate, and the driving gear 406 is meshed with the driven gear 407, so that the slag removal positioning frame ring 403 rotates. The two filter boxes 404 can be driven to rotate. When the slag removal positioning frame ring 403 rotates 180 degrees, the cover plate 4011 is opened to separate the positioning collar 4014 and the positioning block 4013. The filter box 404 rotated to the bottom of the slag removal port 409 can be taken out from the slag removal port 409 to clean the waste slag. At the same time, the other filter box 404 is just below the water inlet 402 to filter and remove the slag. It is not necessary to stop when cleaning the waste slag, that is, it will not affect the filtration of the waste slag, making it more efficient.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for treating organic wastewater from kitchen waste, characterized in that: The following steps are involved: Step 1: using organic wastewater treatment equipment to transport the organic wastewater formed by solid-liquid separation of food waste to a preheating process through a high-pressure transport pipe pump for preheating, and the preheated organic wastewater is discharged into a heating evaporation crystallization process for treatment to obtain condensed water and concentrated liquid; Step 2, transporting the concentrated liquid to a rapid drying process through a high-pressure transport pump to obtain an oil-containing organic mixture and impurity-containing steam; Step 3, pressing the obtained oil-containing organic mixture to obtain dregs of oil and granular organic matter; Step 4: transport the impurity-containing steam to the dust removal process through a pipeline to obtain powdered organic matter and high-temperature gas, and further purify the high-temperature gas to obtain water and room-temperature gas; Step 5: Check whether the obtained condensed water and room temperature gas meet the standards, and discharge or utilize them in the factory if they meet the standards; The organic wastewater treatment equipment used in step 1 comprises a mounting base (1), the top of the mounting base (1) being provided with a preheating mechanism (2) and a heating evaporation mechanism (3) for heating, evaporating and crystallizing the organic wastewater; The preheating mechanism (2) comprises a support frame (201) arranged at the top of the mounting base (1), a primary preheating assembly (202) being arranged at the top of the support frame (201), and a preheating guide pipe (203) being arranged inside the support frame (201) and being connected to the water outlet of the primary preheating assembly (202); The heating evaporation mechanism (3) comprises a heating box (301) arranged at the top of the mounting base (1); the inner bottom wall of the heating box (301) is provided with a first heating wire distributed in an S shape; and one side of the heating box (301) is provided with an evaporator (303) connected to a water outlet of the heating box (301); The preheating guide pipe (203) is connected by a plurality of V-shaped connecting pipes (2031) connected end to end, and the outer wall of the connecting pipe (2031) is provided with a secondary preheating element (204); The secondary preheating element (204) comprises a heat preservation tube (2041) sleeved on the outside of the preheating guide tube (203); the outer wall of the heat preservation tube (2041) is provided with a scalding prevention sleeve (2042); a reserved gap (2043) is provided between the inner wall of the heat preservation tube (2041) and the outer wall of the preheating guide tube (203); and a second heating wire (2044) sleeved on the outside of the preheating guide tube (203) is provided inside the reserved gap (2043); The support frame (201) comprises a plurality of support rods (2011) arranged vertically upward at the top of the mounting base (1); a rectangular frame (212) is arranged at the top of the plurality of support rods (2011); a plurality of protective support rods (2013) are arranged between the upper and lower cross bars of the rectangular frame (2012); and the preheating guide pipe (203) is arranged inside the rectangular frame (2012); The initial preheating assembly (202) comprises a preheating box (2021) arranged at the top of the support frame (201); the interior of the preheating box (2021) is divided into a water inlet chamber (2023) and a conversion chamber (2024) via a partition plate (2022); a water pump (2025) is installed at the upper end of the partition plate (2022); the inlet of the water pump (2025) is connected to a water inlet pipe (2026) extending to the lower end of the water inlet chamber (2023); a gap of 0.5 mm is left between the water inlet pipe (2026) and the bottom wall of the water inlet chamber (2023); and the water outlet of the water pump (2025) is provided with a water outlet pipe (2027) that passes through the partition plate (2022) and extends into the conversion chamber (2024).

2. The method for treating organic wastewater from kitchen waste according to claim 1, characterized in that: The inner cavities of the water inlet chamber (2023) and the conversion chamber (2024) are both provided with a third heating wire (2028) distributed in an S shape, the water outlet of the conversion chamber (2024) of the preheating box (2021) is provided with a drainage pipe (2029) connected to the water inlet end of the preheating guide pipe (203), an electromagnetic control valve (20211) is installed on the drainage pipe (2029), and the inner walls of the water inlet chamber (2023) and the conversion chamber (2024) are both provided with a liquid level sensor (20212) and a temperature sensor (20213).

3. The method for treating organic wastewater from kitchen waste according to claim 2, characterized in that: The top of the preheating box (2021) is provided with a slag removal filter mechanism (4), the slag removal filter mechanism (4) comprising a slag removal filter box (401) provided at the top of the preheating box (2021), a water inlet (402) provided at the top of the slag removal filter box (401), a slag removal positioning frame ring (403) located below the water inlet (402) is connected to the interior of the slag removal filter box (401) via a bearing, the cross section of the slag removal positioning frame ring (403) is set to be L-shaped, and two semicircular filter boxes (404) are provided at the top of the slag removal positioning frame ring (403).

4. The method for treating organic wastewater from kitchen waste according to claim 3, characterized in that: The inner top wall of the slag removal filter box (401) is provided with a driving assembly (405) for driving the slag removal positioning frame ring (403) to rotate. The driving assembly (405) comprises a driving gear (406) arranged inside the slag removal filter box (401) and connected via a rotating shaft. The outer wall of the slag removal positioning frame ring (403) is provided with a driven gear (407) meshing with the driving gear (406). The slag removal filter box (401) is provided with a reduction motor (408) for driving the driving gear (406).

5. The method for treating organic wastewater from kitchen waste according to claim 4, characterized in that: The top of the slag removal filter box (401) is provided with a slag removal opening (409) for removing the filter box (404), a cover plate (4011) is provided at the slag removal opening (409), a lifting handle (4012) is provided at the top of the cover plate (4011), a positioning block (4013) is provided at the upper edge of the slag removal positioning frame ring (403), and a positioning sleeve ring (4014) matching the positioning block (4013) is provided on the outer wall of the filter box (404).

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