Automatic collection and transportation system and collection and transportation method for urban and rural toilet and kitchen waste slurry

Abstract

The automated collection and transportation system and collection and transportation method of kitchen waste slurry in urban and rural toilets relate to the field of waste slurry collection and transportation systems. The automated collection and transportation system of kitchen waste slurry in urban and rural toilets includes a building pool, a community pool and a general collection station; the building pool includes a building pool body, a kitchen waste collection pipe, a toilet excrement collection pipe, a mixed waste slurry output pipe and a pipe opening and closing control mechanism; the community pool includes a community pool body, a negative pressure control mechanism A, a mixed waste slurry input pipe and a mixed waste slurry extraction mechanism; the general collection station is provided with an inner cavity for accommodating mixed waste slurry, and the general collection station is also provided with a negative pressure control mechanism B for regulating the air pressure at the upper end of the inner cavity of the general collection station. The automated collection and transportation method of kitchen and toilet waste slurry is applied to the automated collection and transportation system of kitchen and toilet waste slurry in urban and rural areas. The present invention can realize the efficient, environmentally friendly and automated collection of kitchen and toilet waste slurry in residential areas, office buildings and commercial buildings, and uniformly transport it to the general collection station for further processing.

Description

Technical Field

[0001] The invention relates to the field of a waste pulp collection and transportation system, in particular to an automatic collection and transportation system and a collection and transportation method for waste pulp from urban and rural toilets and kitchens. Background Art

[0002] At present, some towns or villages in my country have problems with the treatment of kitchen waste and toilet excrement, such as unenvironmentally friendly treatment methods, low resource utilization, and insufficient automation of the collection and transportation process. These problems are specifically reflected in the following aspects:

[0003] 1. Kitchen waste is usually mixed with other waste and discarded. On the one hand, kitchen waste is easy to rot and deteriorate, attract mosquitoes and produce unpleasant odors, causing environmental pollution. On the other hand, it wastes the value of kitchen waste as a fermentable material to produce biogas or farmyard manure.

[0004] 2. Even if some towns have separated kitchen waste from other waste, people still need to prepare separate kitchen waste bins, collect and pack the kitchen waste every day, and discard it at designated collection points nearby, waiting for garbage trucks to transport it to garbage treatment stations for further processing. On the one hand, the entire collection and transportation process consumes a lot of manpower and material resources and is not automated enough. On the other hand, during the entire collection and transportation process, the kitchen waste is exposed to the outside for a long time, which is easy to breed mosquitoes and produce unpleasant odors;

[0005] 3. Toilet excrement is usually discharged into the municipal sewage network and then transported to the sewage treatment plant for purification. The excrement is rich in nitrogen, phosphorus and potassium, and is a high-quality raw material for farmyard manure. However, this existing treatment method does not achieve effective utilization of excrement. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an automated collection and transportation system and method for kitchen waste slurry in urban and rural toilets, which solves the problems of extensive and environmentally unfriendly treatment methods, low resource utilization, and insufficient automation of the collection and transportation process in some towns or villages in my country in terms of the treatment of kitchen waste and toilet excrement.

[0007] The technical solution of the present invention is: an automatic collection and transportation system for urban and rural toilet kitchen waste slurry, including a building pool, a community pool and a general collection station;

[0008] The building pool includes a building pool body, a kitchen waste collection pipe, a toilet excrement collection pipe, a mixed waste slurry output pipe and a pipe opening and closing control mechanism; the building pool body is provided with an inner cavity for accommodating the mixed waste slurry; the kitchen waste collection pipe and the toilet excrement collection pipe are both connected to the inner cavity of the building pool body; the front end of the mixed waste slurry output pipe is arranged in the inner cavity of the building pool body, and the rear end extends out of the inner cavity of the building pool body; the pipe opening and closing control mechanism is associated with the mixed waste slurry output pipe to close or open the front end pipe opening of the mixed waste slurry output pipe;

[0009] The pool includes a pool body, a negative pressure regulating mechanism A, a mixed waste slurry input pipe and a mixed waste slurry extraction mechanism; the pool body is provided with an inner cavity for accommodating the mixed waste slurry; the negative pressure regulating mechanism A is arranged on the pool body to regulate the air pressure at the upper end of the inner cavity of the pool body; the rear end of the mixed waste slurry input pipe is located in the inner cavity of the pool body, the front end extends from the inner cavity of the pool body, and is connected with the rear end of the mixed waste slurry output pipe; the mixed waste slurry extraction mechanism is arranged on the pool body to extract the mixed slurry in the inner cavity of the pool body and transport it to the general collection station;

[0010] An inner cavity for accommodating mixed waste slurry is provided in the main collection station, and a negative pressure regulating mechanism B for regulating the air pressure at the upper end of the inner cavity of the main collection station is also provided on the main collection station.

[0011] A further technical solution of the present invention is: a vertically arranged grille plate is provided in the building pool body, and the grille plate divides the inner cavity of the building pool body into a sediment deposition chamber and a mixed waste slurry containing chamber; the rear end of the kitchen waste collection pipe is connected to the sediment deposition chamber of the building pool body; the rear end of the toilet excrement collection pipe is connected to the sediment deposition chamber of the building pool body; the mixed waste slurry output pipe is arranged in the mixed waste slurry containing chamber of the building pool body, and the rear end passes through the side wall of the building pool body and is located outside the building pool body.

[0012] A further technical solution of the present invention is: the negative pressure control mechanism A includes an air pressure detection unit A, a vacuum pump A and an air storage tank A. The air pressure detection unit A is installed on the pool body, and is used to detect the air pressure at the upper end of the inner cavity of the pool body. The vacuum pump A is installed on the pool body, and its air inlet end is connected to the upper end of the inner cavity of the pool body through a pipeline, and its exhaust end is connected to the air storage tank A through a pipeline with a check valve, and the air storage tank A is connected to the upper end of the inner cavity of the pool body through a pipeline with an electric valve and a manual valve.

[0013] A further technical solution of the present invention is: the negative pressure control mechanism B includes an air pressure detection unit B, a vacuum pump B and an air storage tank B. The air pressure detection unit B is installed on the main collection station and is used to detect the air pressure at the upper end of the inner cavity of the main collection station. The vacuum pump B is installed on the main collection station, and its air inlet end is connected to the upper end of the inner cavity of the main collection station through a pipeline, and its exhaust end is connected to the air storage tank B through a pipeline with a check valve.

[0014] A further technical solution of the present invention is: the mixed waste slurry extraction mechanism includes a mixed waste slurry extraction pipe, a sewage pump, and an external pipeline that are connected in sequence, and also includes a high liquid level detection unit and a low liquid level detection unit; the front end of the mixed waste slurry extraction pipe is located in the inner cavity of the pool body, and the rear end of the mixed waste slurry extraction pipe extends from the inner cavity of the pool body; a check valve is installed on the external pipeline, and the rear end of the external pipeline is connected to the inner cavity of the main collection station; the high and low liquid level detection units are both installed on the pool body to respectively detect whether the liquid level in the inner cavity of the pool body reaches the preset high and low liquid levels.

[0015] A further technical solution of the present invention is: the pipe opening and closing control mechanism includes a support, a lever, a float A, a cover plate, a guide wheel A, a rope A and a lever limiting assembly; the support is fixedly installed on the bottom surface of the inner cavity of the building pool body, the lever is hinged to the support in the middle, the lever is bounded by the hinge point, and the two sides of the hinge point are respectively a long arm and a short arm, the float A is connected to the end of the long arm of the lever, the cover plate is movably connected to the pipe mouth of one end of the mixed waste slurry output pipe located in the mixed waste slurry containing cavity through a hinge, the guide wheel A is installed in the inner cavity of the building pool body, one end of the rope A is connected to the long arm of the lever, and the other end is connected to the cover plate after passing around the guide wheel A.

[0016] A further technical solution of the present invention is: the nozzle opening and closing control mechanism also includes a lever limiting assembly; the lever limiting assembly includes a limit plate, a guide wheel B, a base, a pulley seat, a spring, a pulley, a rope B and a float B; the limit plate is fixedly connected to the end of the short arm of the lever, and is provided with a flat lower edge and a convex arc side edge, and the lower edge and the side edge have a smooth transition; the guide wheel B is installed in the inner cavity of the building pool body; the base is fixedly installed on the bottom surface of the inner cavity of the building pool body, and is provided with a first vertical wall and a second vertical wall arranged oppositely, and the first vertical wall and the second vertical wall are respectively provided with a first through hole and a second through hole for the pulley seat to pass through; the pulley seat is provided with a positioning step, which passes through the base The first and second ends of the spring are respectively passed through the first and second through holes and are located outside the base; the spring is sleeved on the pulley seat and is located between the first vertical wall and the second vertical wall of the base, one end of the spring is against the second vertical wall of the base, and the other end is against the positioning step of the pulley seat, and the positioning step of the pulley seat is pressed against the first vertical wall of the base through elastic force; the pulley is movably mounted on the first end of the pulley seat and is against the lower edge of the limit plate, thereby limiting the upward rotation of the long arm of the lever; one end of the rope B is connected to the second end of the pulley seat, and the other end is connected to the float B after passing around the guide wheel B.

[0017] A further technical solution of the present invention is: a net bag is provided in the sediment deposition chamber of the building pool body of the building pool, and the net bag accommodates the connecting port between the rear end of the kitchen waste collection pipe and the sediment deposition chamber and the connecting port between the rear end of the toilet excrement collection pipe and the sediment deposition chamber.

[0018] The technical solution of the present invention is: a method for automatically collecting and conveying kitchen and toilet waste slurry, which is applied to the above-mentioned automatic collection and conveying system for urban and rural kitchen and toilet waste slurry, and the steps are as follows:

[0019] S01, the kitchen waste collection pipe and toilet excrement collection pipe collect the user's kitchen waste and excrement respectively, and then discharge them into the sediment deposition chamber of the building pool body. The large pieces of garbage are intercepted by the net bag and retained in the net bag to be cleaned up by the staff in the future. The rest of the garbage falls into the sediment deposition chamber through the net bag. The small pieces of garbage with higher density in the rest of the garbage sink to the bottom of the sediment deposition chamber to be salvaged by the staff in the future. The kitchen and toilet waste slurry in the rest of the garbage flows into the mixed waste slurry holding chamber through the mesh holes on the grille plate. When the mixed waste slurry in the mixed waste slurry holding chamber accumulates to a certain liquid level, it is automatically discharged through the mixed waste slurry output pipe;

[0020] In this step, the building pool body controls the opening or closing of the pipe opening of the mixed waste slurry output pipe through the pipe opening and closing control mechanism, thereby realizing the automatic discharge of the mixed waste slurry in the cavity of the building pool body; the working principle of the pipe opening and closing control mechanism is as follows:

[0021] a. In the initial state, the amount of mixed waste slurry in the inner cavity of the building pool is small. As the mixed waste slurry in the mixed waste slurry holding chamber accumulates, the liquid level in the inner cavity of the building pool continues to rise until it overflows the float A, causing the long arm of the lever to tend to rotate upward. However, since the lower edge of the limit plate abuts against the pulley, the long arm of the lever is limited from rotating upward;

[0022] b. As the mixed waste slurry in the mixed waste slurry containing chamber further accumulates, the liquid level in the inner cavity of the building pool body further rises, causing the float B to rise synchronously with the liquid level. When the liquid level in the inner cavity of the building pool body reaches the preset liquid level, the float B tightens the rope B under the action of its own buoyancy, and the tension of the rope B overcomes the elastic force of the spring, thereby pulling the pulley seat away from the lever, thereby causing the pulley to break contact with the lower edge of the limit plate;

[0023] c. When the pulley is out of contact with the lower edge of the limit plate, the long arm of the lever immediately rotates upward under the buoyancy provided by the float A, thereby tightening the rope A. The cover plate is rotated to a horizontal state by the pulling of the rope A, so that the pipe opening of the mixed waste slurry output pipe at one end located in the mixed waste slurry receiving chamber is opened, and the mixed waste slurry in the mixed waste slurry receiving chamber is immediately discharged through the mixed waste slurry output pipe;

[0024] d. As the waste slurry in the mixed waste slurry containing chamber is discharged, the liquid level in the inner cavity of the building pool body continues to drop, and the float B also loosens the rope B as the liquid level drops, causing the pulley seat to lose the pulling force of the rope B, and gradually moves toward the direction close to the lever under the elastic force of the spring. At the same time, the float A also drives the long arm of the lever to rotate downward as the liquid level drops, thereby loosening the rope A. The cover plate loses the pulling force of the rope A and then rotates downward under its own gravity, covering the pipe opening of the mixed waste slurry output pipe, thereby closing the pipe opening of the mixed waste slurry output pipe at one end located in the mixed waste slurry containing chamber. Finally, the pulley moves to a state of contact with the lower edge of the limit plate;

[0025] e. Repeat the above steps a to d to achieve automatic discharge of the mixed waste slurry in the mixed waste slurry receiving chamber;

[0026] S02, after the mixed waste slurry is discharged from the mixed waste slurry output pipe, it is sucked into the mixed waste slurry input pipe through the pipeline under the negative pressure of the inner cavity of the social pool body, and then sucked into the inner cavity of the social pool body. When the mixed waste slurry in the inner cavity of the social pool body accumulates to a certain liquid level, it is automatically discharged through the mixed waste slurry extraction pipe;

[0027] In this step, the negative pressure in the inner cavity of the cell body is controlled by the negative pressure regulating mechanism A to maintain the negative pressure at 0.15-1.5 kg / cm 2 , and then the mixed waste slurry discharged from the mixed waste slurry output pipe quickly enters the inner cavity of the pool body through the negative pressure assistance; the working process of the negative pressure control mechanism A is as follows: the air pressure detection unit A detects the air pressure at the upper end of the inner cavity of the pool body in real time; when the liquid level in the inner cavity of the pool body rises, the volume of the inner cavity of the pool body decreases, and the pressure in the inner cavity of the pool body increases, when the air pressure detection unit A detects that the pressure in the inner cavity of the pool body increases to exceed the preset upper limit value, the vacuum pump A is immediately started to extract part of the air in the inner cavity of the pool body and store it in the air storage tank A, thereby reducing the pressure in the inner cavity of the pool body to 0.15-1.5 kg / cm 2 When the liquid level in the inner cavity of the pool body drops and the pressure in the inner cavity of the pool body decreases to below the preset lower limit, the electric control valve on the pipeline connected to the exhaust port of the gas storage tank A opens, and the gas stored in the gas storage tank A is input into the inner cavity of the pool body through the pipeline under the action of the negative pressure in the inner cavity of the pool body, so that the pressure in the inner cavity of the pool body is increased to 0.15-1.5 kg / cm 2 within;

[0028] In this step, the mixed waste slurry in the inner cavity of the community pool body is controlled by the mixed waste slurry extraction mechanism to be automatically discharged through the mixed waste slurry extraction pipe; the working process of the mixed waste slurry extraction mechanism is: as more and more mixed waste slurry is accumulated in the inner cavity of the community pool body, its liquid level is also continuously raised. When the high liquid level calibrated by the high liquid level detection unit is reached, the sewage pump is started to extract the waste slurry in the inner cavity of the community pool body through the mixed waste slurry extraction pipe, and the liquid level in the inner cavity of the community pool body drops immediately. When the low liquid level calibrated by the low liquid level detection unit is reached, the sewage pump is closed;

[0029] S03, after the mixed waste slurry is discharged from the inner cavity of the community pool through the mixed waste slurry extraction pipe, it passes through the sewage pump and the external pipeline in turn, enters the main collection station for fermentation, and produces biogas and farmyard manure;

[0030] In this step, the main collection station controls the negative pressure in its inner cavity through the negative pressure regulating mechanism B, so that the mixed waste slurry in the external pipeline can quickly enter the inner cavity of the main collection station through the negative pressure assist mechanism B; the working process of the negative pressure regulating mechanism B is as follows: the air pressure detection unit B detects the air pressure at the upper end of the inner cavity of the main collection station in real time and controls the vacuum pump B to shut down or start, so as to maintain the pressure in the inner cavity of the main collection station within a certain range; when the vacuum pump B is started, the biogas in the inner cavity of the main collection station is drawn into the gas storage tank B for storage, and the gas storage tank B is connected to the biogas use terminal.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. It can realize efficient, environmentally friendly and automatic collection of kitchen and toilet waste slurry in residential areas, office buildings and commercial buildings, and transport them to the main collection station for further treatment;

[0033] On the one hand, the collection and transportation process of kitchen and toilet waste slurry does not require human transportation, which reduces (manpower and material) costs;

[0034] On the other hand, the collection and transportation process of kitchen and toilet waste is in a closed chamber or pipeline, without contact with the external environment, which will not cause environmental pollution and will not breed mosquitoes and spread bacteria;

[0035] On the other hand, taking into full consideration the characteristics of kitchen and toilet waste slurry that is rich in nitrogen, phosphorus and potassium and easy to ferment, the kitchen and toilet waste slurry is collected uniformly at a central collection station (biogas digester) to produce biogas and farmyard manure, thus realizing the recycling of waste slurry and effectively preventing the loss of nitrogen, phosphorus and potassium elements.

[0036] 2. The mixed waste slurry in the inner cavity of the building pool body is automatically discharged through the nozzle opening and closing control mechanism, and the nozzle opening and closing control mechanism realizes that the cover plate can be automatically opened to discharge the mixed waste slurry only when the liquid level in the inner cavity of the building pool body reaches a preset height through the lever limiting component (the principle is: when the liquid level in the inner cavity of the building pool body does not reach the preset height, the lower edge of the limit plate remains in contact with the pulley, thereby limiting the upward rotation of the long arm of the lever; when the liquid level in the inner cavity of the building pool body reaches the preset height, the rope B is tightened under the buoyancy of the float B, thereby generating a pulling force to pull the pulley seat away from the lever, thereby causing the pulley to break contact with the lower edge of the limit plate, and the long arm of the lever immediately rotates upward under the buoyancy of the float A, and the cover plate is opened by the pull of the rope A). Therefore, each time the mixed waste slurry is discharged, the liquid level in the inner cavity of the building pool body is at a higher state. Discharging the waste slurry at a high liquid level can make the waste slurry have a certain pressure when it is discharged, accelerate the discharge speed of the waste slurry, and prevent the waste slurry from flowing slowly and stagnating in the mixed waste slurry output pipe.

[0037] The present invention is further described below in conjunction with the figures and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the state of the building pool when the cover is opened;

[0040] Figure 3 It is a schematic diagram of the state of the building pool when the cover is closed;

[0041] Figure 4 This is a schematic diagram of the structure of the community pool;

[0042] Figure 5 This is a schematic diagram of the structure of the total collection station;

[0043] Figure 6 for Figure 2 A magnified view of part A;

[0044] Figure 7 for Figure 3 A magnified view of part B;

[0045] Figure 8 for Figure 4 Enlarged view of part C. DETAILED DESCRIPTION

[0046] Embodiment 1:

[0047] like Figure 1-8 As shown, the automatic collection and transportation system for urban and rural toilet kitchen waste slurry includes building pools, community pools and a general collection station 3.

[0048] The building pool includes a building pool body 11, a kitchen waste collection pipe 12, a toilet excrement collection pipe 13, a mixed waste slurry output pipe 14 and a pipe opening and closing control mechanism.

[0049] An inner cavity for accommodating mixed waste slurry is provided in the building pool body 11 . A vertically arranged grid plate 111 is also provided in the building pool body 11 . The grid plate 111 divides the inner cavity of the building pool body 11 into a sediment deposition cavity 112 and a mixed waste slurry accommodating cavity 113 .

[0050] The rear end of the kitchen waste collection pipe 12 is connected to the sediment deposition chamber 112 of the building pool body 11. A plurality of kitchen waste collection ports are provided on the front end and / or the middle section of the kitchen waste collection pipe 12. The kitchen waste collection ports are arranged in the user's kitchen. Each kitchen waste collection port is connected to a grinder 121 for crushing the kitchen waste to prevent large pieces of kitchen waste from getting stuck in the pipe.

[0051] The rear end of the toilet excrement collection pipe 13 is connected to the sediment deposition chamber 112 of the building pool body 11, and a plurality of toilet excrement collection ports are provided on the front end and / or middle section of the toilet excrement collection pipe 13, and the toilet excrement collection ports are connected to the user's toilet 131 (or squat toilet).

[0052] The front end of the mixed waste slurry output pipe 14 is arranged in the mixed waste slurry containing chamber 113 of the building pool body 11 , and the rear end passes through the side wall of the building pool body 11 and is located outside the building pool body 11 .

[0053] The nozzle opening and closing control mechanism is arranged in the mixed waste slurry receiving chamber 113 of the building pool body 11, and is associated with the mixed waste slurry output pipe 14 to close or open the nozzle of one end of the mixed waste slurry output pipe 14 located in the mixed waste slurry receiving chamber 113. The nozzle opening and closing control mechanism includes a support 151, a lever 152, a float A153, a cover plate 154, a guide wheel A155, a rope A156 and a lever limiting assembly. The support 151 is fixedly installed on the bottom surface of the inner cavity of the building pool body 11, and the lever 152 is hinged to the support 151 in the middle. The lever 152 is bounded by the hinge point, and the long arm 1521 and the short arm 1522 are respectively on both sides of the hinge point. The float A153 is connected to the end of the long arm 1521 of the lever 152, and the cover plate 154 is movably connected to the pipe mouth of one end of the mixed waste slurry output pipe 14 located in the mixed waste slurry containing chamber 113 through a hinge. The guide wheel A155 is installed in the inner cavity of the building pool body 11 through a bracket. One end of the rope A156 is connected to the long arm 1521 of the lever 152, and the other end is connected to the cover plate 154 after passing around the guide wheel A155.

[0054] The lever limiting assembly includes a limit plate 1571, a guide wheel B1572, a base 1573, a pulley seat 1574, a spring 1575, a pulley 1576, a rope B1577 and a float B1578. The limit plate 1571 is fixedly connected to the end of the short arm 1522 of the lever 152, and is provided with a flat lower edge and a convex arc side edge, and the lower edge and the side edge have a smooth transition. The guide wheel B1572 is installed in the inner cavity of the building pool body 11 through a bracket. The base 1573 is fixedly installed on the bottom surface of the inner cavity of the building pool body 11, and is provided with a first vertical wall 15731 and a second vertical wall 15732 arranged oppositely, and the first vertical wall 15731 and the second vertical wall 15732 are respectively provided with a first through hole and a second through hole for the pulley seat 1574 to pass through. The pulley seat 1574 is provided with a positioning step 15741, which passes through the first through hole and the second through hole on the base 1573 and is movably mounted on the base 1573, and the first end and the second end of the spring 1575 pass through the first through hole and the second through hole respectively and are located outside the base 1573. The spring 1575 is sleeved on the pulley seat 1574 and is located between the first vertical wall 15731 and the second vertical wall 15732 of the base 1573, one end of the spring 1575 abuts against the second vertical wall 15732 of the base 1573, and the other end abuts against the positioning step 15741 of the pulley seat 1574, and the positioning step 15741 of the pulley seat 1574 is pressed against the first vertical wall 15731 of the base 1573 by elastic force. The pulley 1576 is movably mounted on the first end of the pulley seat 1574 and abuts against the lower edge of the limiting plate 1571, thereby limiting the upward rotation of the long arm 1521 of the lever 152. One end of the rope B1577 is connected to the second end of the pulley seat 1574, and the other end is connected to the float B1578 after passing around the guide wheel B1572.

[0055] The community pool includes a community pool body 21, a negative pressure regulating mechanism A, a mixed waste slurry input pipe 23 and a mixed waste slurry extraction mechanism.

[0056] The pool body 21 is provided with an inner cavity for accommodating the mixed waste slurry.

[0057] The negative pressure control mechanism A includes an air pressure detection unit A221, a vacuum pump A222 and an air tank A223. The air pressure detection unit A221 is installed on the pool body 21, and is used to detect the air pressure at the upper end of the inner cavity of the pool body 21. The vacuum pump A222 is installed on the pool body 21, and its air inlet end is connected to the upper end of the inner cavity of the pool body 21 through a pipeline, and its exhaust end is connected to the air inlet of the air tank A223 through a pipeline with a check valve, and the exhaust port of the air tank A223 is connected to the upper end of the inner cavity of the pool body 21 through a pipeline with an electric valve and a manual valve.

[0058] The rear end of the mixed waste slurry input pipe 23 is located in the inner cavity of the pool body 21 , and the front end extends out from the inner cavity of the pool body 21 and is connected to the rear end of the mixed waste slurry output pipe 14 .

[0059] The mixed waste slurry extraction mechanism includes a mixed waste slurry extraction pipe 241, a sewage pump 242, and an external pipeline 243 connected in sequence, and also includes a high liquid level detection unit 244 and a low liquid level detection unit 245. The front end of the mixed waste slurry extraction pipe 241 extends into the inner cavity of the community pool body 21, and the rear end of the mixed waste slurry extraction pipe 241 extends from the inner cavity of the community pool body 21. A check valve 2431 is installed on the external pipeline 243, and the rear end of the external pipeline 243 is connected to the inner cavity of the main collection station 3. The high and low liquid level detection units are both installed on the community pool body 21 to detect whether the liquid level in the inner cavity of the community pool body 21 reaches the preset high and low liquid levels, respectively.

[0060] An inner cavity for accommodating mixed waste slurry is provided in the main collection station 3. A negative pressure regulating mechanism B is provided on the main collection station 3, and the negative pressure regulating mechanism B includes an air pressure detection unit B31, a vacuum pump B32 and an air storage tank B33. The air pressure detection unit B31 is installed on the main collection station 3, and is used to detect the air pressure at the upper end of the inner cavity of the main collection station 3. The vacuum pump B32 is installed on the main collection station 3, and its air inlet end is connected to the upper end of the inner cavity of the main collection station 3 through a pipeline, and its exhaust end is connected to the air storage tank B33 through a pipeline with a check valve, and the air storage tank B33 is connected to the biogas use terminal.

[0061] Preferably, a net bag 114 is provided in the sediment deposition chamber 112 of the building pool body 11, and the net bag 114 accommodates the connecting port between the rear end of the kitchen waste collection pipe 12 and the sediment deposition chamber 112 and the connecting port between the rear end of the toilet excrement collection pipe 12 and the sediment deposition chamber 112.

[0062] Preferably, the holes provided on the grid plate 111 have gradually smaller diameters from top to bottom. The smaller holes at the bottom of the grid plate 111 can intercept solid particles but still allow the slurry to pass through. The larger holes at the top of the grid plate 111 facilitate the flow of slurry.

[0063] Preferably, the angles formed by each pipe section of the kitchen waste collection pipe 12 and the toilet excrement collection pipe 13 relative to the horizontal plane are not less than 15° to ensure that the kitchen waste and excrement in each pipe can flow by themselves.

[0064] Preferably, the main collection station 3 is a biogas digester, which produces clean renewable energy - biogas by fermenting kitchen and toilet waste slurry, and produces farmyard manure to achieve resource recycling.

[0065] Briefly describe the workflow of the present invention:

[0066] S01, the kitchen waste collection pipe 12 and the toilet excrement collection pipe 13 collect the user's kitchen waste and excrement respectively, and then discharge them into the sedimentation chamber 112 of the building pool body 11. The large pieces of garbage are intercepted by the net bag 114 and retained in the net bag 114 to be cleaned up by the staff in the future. The rest falls into the sedimentation chamber 112 through the net bag 114, and the small pieces of garbage with higher density in the rest sink to the bottom of the sedimentation chamber 112 to be salvaged by the staff in the future. The kitchen and toilet waste slurry in the rest flows into the mixed waste slurry holding chamber 113 through the mesh holes on the grille plate 111. When the mixed waste slurry in the mixed waste slurry holding chamber 113 accumulates to a certain liquid level, it is automatically discharged through the mixed waste slurry output pipe 14.

[0067] In this step, the building pool body 11 controls the opening or closing of the nozzle of the mixed waste slurry output pipe 14 through the nozzle opening and closing control mechanism, thereby realizing the automatic discharge of the mixed waste slurry in the inner cavity of the building pool body 11. The working principle of the nozzle opening and closing control mechanism is as follows:

[0068] a. In the initial state, the amount of mixed waste slurry in the inner cavity of the building pool body 11 is small. With the accumulation of mixed waste slurry in the mixed waste slurry containing chamber 113, the liquid level in the inner cavity of the building pool body 11 continues to rise until it overflows the float A153, causing the long arm 1521 of the lever 152 to tend to rotate upward. However, since the lower edge of the limit plate 1571 is in contact with the pulley 1576, the upward rotation of the long arm 1521 of the lever 152 is limited.

[0069] b. With the further accumulation of the mixed waste slurry in the mixed waste slurry containing chamber 113, the liquid level in the inner cavity of the building pool body 11 is further raised, causing the float B1578 to rise synchronously with the liquid level. When the liquid level in the inner cavity of the building pool body 11 reaches the preset liquid level, the float B1578 tightens the rope B1577 under the action of its own buoyancy, and the tension of the rope B1577 overcomes the elastic force of the spring 1575, thereby pulling the pulley seat 1574 away from the lever 152, thereby causing the pulley 1576 to break contact with the lower edge of the limit plate 1571.

[0070] c. When the pulley 1576 loses contact with the lower edge of the limit plate 1571, the long arm 1521 of the lever 152 immediately rotates upward under the buoyancy provided by the float A153, thereby tightening the rope A157. The cover plate 154 is rotated to a horizontal state by the pulling of the rope A157, so that the pipe opening of the mixed waste slurry output pipe 14 at one end of the mixed waste slurry receiving chamber 113 is opened, and the mixed waste slurry in the mixed waste slurry receiving chamber 113 is immediately discharged through the mixed waste slurry output pipe 14.

[0071] d. As the waste slurry in the mixed waste slurry holding chamber 113 is discharged, the liquid level in the inner cavity of the pool body 11 continues to drop, and the float B1578 also loosens the rope B1577 as the liquid level drops, causing the pulley seat 1574 to lose the pulling force of the rope B1577 and gradually move toward the direction close to the lever 152 under the elastic force of the spring 1575. At the same time, the float A153 also drives the long arm 1521 of the lever 152 to rotate downward as the liquid level drops, thereby loosening the rope A157. The cover plate 154 loses the pulling force of the rope A157 and then rotates downward under the action of its own gravity, covering the pipe mouth of the mixed waste slurry output pipe 14, thereby closing the pipe mouth of the mixed waste slurry output pipe 14 at one end located in the mixed waste slurry holding chamber 113. Finally, the pulley 1576 moves to a state of contact with the lower edge of the limit plate 1571.

[0072] e. Repeat the above steps a to d to realize the automatic discharge of the mixed waste slurry in the mixed waste slurry containing chamber 113.

[0073] S02, after the mixed waste slurry is discharged from the mixed waste slurry output pipe 14, it is sucked into the mixed waste slurry input pipe 23 through the pipeline under the action of the negative pressure in the inner cavity of the pool body 21, and then sucked into the inner cavity of the pool body 21. After the mixed waste slurry in the inner cavity of the pool body 21 accumulates to a certain liquid level height, it is automatically discharged through the mixed waste slurry extraction pipe 241.

[0074] In this step, the negative pressure in the inner cavity of the cell body 21 is controlled by the negative pressure regulating mechanism A to be maintained at 0.15-1.5 kg / cm 2 , and then the mixed waste slurry discharged from the mixed waste slurry output pipe 14 quickly enters the inner cavity of the pool body 21 with the help of negative pressure. The working process of the negative pressure control mechanism A is as follows: the air pressure detection unit A221 detects the air pressure at the upper end of the inner cavity of the pool body 21 in real time; when the liquid level in the inner cavity of the pool body 21 rises, the volume of the inner cavity of the pool body 21 decreases, and the pressure in the inner cavity of the pool body 21 increases. When the air pressure detection unit A221 detects that the pressure in the inner cavity of the pool body 21 increases to exceed the preset upper limit, the vacuum pump A222 starts immediately to extract part of the air in the inner cavity of the pool body 21 and store it in the air storage tank A223, thereby reducing the pressure in the inner cavity of the pool body 21 to 0.15-1.5 kg / cm 2 When the liquid level in the inner cavity of the pool body 21 drops and the pressure in the inner cavity of the pool body 21 decreases to below the preset lower limit, the electric control valve on the pipeline connected to the exhaust port of the gas storage tank A223 opens, and the gas stored in the gas storage tank A223 is input into the inner cavity of the pool body 21 through the pipeline under the action of the negative pressure in the inner cavity of the pool body 21, so that the pressure in the inner cavity of the pool body 21 is increased to 0.15-1.5 kg / cm 2 Within.

[0075] In this step, the mixed waste slurry in the inner cavity of the pool body 21 is automatically discharged through the mixed waste slurry extraction pipe 241 by controlling the mixed waste slurry extraction mechanism. The working process of the mixed waste slurry extraction mechanism is: as more and more mixed waste slurry is accumulated in the inner cavity of the pool body 21, its liquid level is constantly rising. When the high liquid level calibrated by the high liquid level detection unit 244 is reached, the sewage pump 242 is started, and the waste slurry in the inner cavity of the pool body 21 is extracted through the mixed waste slurry extraction pipe 241. The liquid level in the inner cavity of the pool body 21 then drops. When the low liquid level calibrated by the low liquid level detection unit 244 is reached, the sewage pump 242 is turned off.

[0076] S03, after the mixed waste slurry is discharged from the inner cavity of the community pool body 21 through the mixed waste slurry extraction pipe 241, it passes through the sewage pump 242 and the external pipeline 243 in turn, and enters the main collection station 3 for fermentation to produce biogas and farmyard manure.

[0077] In this step, the total collection station 3 controls the negative pressure in its inner cavity through the negative pressure regulating mechanism B, so that the mixed waste slurry in the external pipeline 243 quickly enters the inner cavity of the total collection station 3 through the negative pressure assisting mechanism B. The working process of the negative pressure regulating mechanism B is as follows: the air pressure detection unit B31 detects the air pressure at the upper end of the inner cavity of the total collection station 3 in real time and controls the vacuum pump B32 to shut down or start, so as to maintain the pressure in the inner cavity of the total collection station 3 within a certain range. When the vacuum pump B32 is started, the biogas in the inner cavity of the total collection station 3 is pumped into the gas storage tank B33 for storage, and the gas storage tank B33 is connected to the biogas use terminal.

Claims

1. The method for automatically collecting and conveying kitchen and toilet waste slurry is applied to an automatic collection and conveying system for urban and rural kitchen and toilet waste slurry, wherein the automatic collection and conveying system for urban and rural kitchen and toilet waste slurry includes a building pool, a community pool and a general collection station; The building pool includes a building pool body, a kitchen waste collection pipe, a toilet excrement collection pipe, a mixed waste slurry output pipe and a pipe opening and closing control mechanism; the building pool body is provided with an inner cavity for accommodating the mixed waste slurry; the kitchen waste collection pipe and the toilet excrement collection pipe are both connected to the inner cavity of the building pool body; the front end of the mixed waste slurry output pipe is arranged in the inner cavity of the building pool body, and the rear end extends out of the inner cavity of the building pool body; The pipe opening and closing control mechanism is associated with the mixed waste pulp output pipe to close or open the front pipe opening of the mixed waste pulp output pipe; The pool includes a pool body, a negative pressure regulating mechanism A, a mixed waste slurry input pipe and a mixed waste slurry extraction mechanism; the pool body is provided with an inner cavity for accommodating the mixed waste slurry; the negative pressure regulating mechanism A is arranged on the pool body to regulate the air pressure at the upper end of the inner cavity of the pool body; the rear end of the mixed waste slurry input pipe is located in the inner cavity of the pool body, the front end extends from the inner cavity of the pool body, and is connected with the rear end of the mixed waste slurry output pipe; the mixed waste slurry extraction mechanism is arranged on the pool body to extract the mixed slurry in the inner cavity of the pool body and transport it to the general collection station; The main collection station is provided with an inner cavity for accommodating the mixed waste slurry, and the main collection station is also provided with a negative pressure regulating mechanism B for regulating the air pressure at the upper end of the inner cavity of the main collection station. A vertically arranged grille plate is provided in the building pool body, and the grille plate divides the inner cavity of the building pool body into a sediment deposition cavity and a mixed waste slurry receiving cavity; the rear end of the kitchen waste collection pipe is connected to the sediment deposition cavity of the building pool body; the rear end of the toilet excrement collection pipe is connected to the sediment deposition cavity of the building pool body; the mixed waste slurry output pipe is arranged in the mixed waste slurry receiving cavity of the building pool body, and the rear end passes through the side wall of the building pool body and is located outside the building pool body. The negative pressure control mechanism A includes an air pressure detection unit A, a vacuum pump A and an air storage tank A. The air pressure detection unit A is installed on the pool body and is used to detect the air pressure at the upper end of the inner cavity of the pool body. The vacuum pump A is installed on the pool body, and its air inlet end is connected to the upper end of the inner cavity of the pool body through a pipeline, and its exhaust end is connected to the air storage tank A through a pipeline with a check valve. The air storage tank A is connected to the upper end of the inner cavity of the pool body through a pipeline with an electric valve and a manual valve. The negative pressure control mechanism B includes an air pressure detection unit B, a vacuum pump B and an air storage tank B. The air pressure detection unit B is installed on the main collection station and is used to detect the air pressure at the upper end of the inner cavity of the main collection station. The vacuum pump B is installed on the main collection station, and its air inlet end is connected to the upper end of the inner cavity of the main collection station through a pipeline, and its exhaust end is connected to the air storage tank B through a pipeline with a check valve. The mixed waste slurry extraction mechanism includes a mixed waste slurry extraction pipe, a sewage pump, and an external pipeline that are connected in sequence, and also includes a high liquid level detection unit and a low liquid level detection unit; the front end of the mixed waste slurry extraction pipe is located in the inner cavity of the community pool body, and the rear end of the mixed waste slurry extraction pipe extends out of the inner cavity of the community pool body; a check valve is installed on the external pipeline, and the rear end of the external pipeline is connected to the inner cavity of the main collection station; the high and low liquid level detection units are both installed on the community pool body to respectively detect whether the liquid level in the inner cavity of the community pool body reaches the preset high and low liquid levels, The pipe opening and closing control mechanism includes a support, a lever, a float A, a cover plate, a guide wheel A, a rope A and a lever limiting assembly; the support is fixedly installed on the bottom surface of the inner cavity of the building pool body, the lever is hinged to the support in the middle, the lever is bounded by a hinge point, and the two sides of the hinge point are respectively a long arm and a short arm, the float A is connected to the end of the long arm of the lever, the cover plate is movably connected to the pipe mouth of one end of the mixed waste slurry output pipe located in the mixed waste slurry containing cavity through a hinge, the guide wheel A is installed in the inner cavity of the building pool body, one end of the rope A is connected to the long arm of the lever, and the other end is connected to the cover plate after passing around the guide wheel A. The nozzle opening and closing control mechanism also includes a lever limiting assembly; the lever limiting assembly includes a limit plate, a guide wheel B, a base, a pulley seat, a spring, a pulley, a rope B and a float B; the limit plate is fixedly connected to the end of the short arm of the lever, and is provided with a flat lower edge and a convex arc side edge, and the lower edge and the side edge have a smooth transition; the guide wheel B is installed in the inner cavity of the building pool body; the base is fixedly installed on the bottom surface of the inner cavity of the building pool body, and is provided with a first vertical wall and a second vertical wall arranged oppositely, and the first vertical wall and the second vertical wall are respectively provided with a first through hole and a second through hole for the pulley seat to pass through; the pulley seat is provided with a positioning step, which passes through the first through hole and the second through hole on the base The spring is mounted on the base through the second through-hole, and its first end and second end respectively pass through the first through-hole and the second through-hole and are located outside the base; the spring is sleeved on the pulley seat and is located between the first vertical wall and the second vertical wall of the base, one end of the spring is against the second vertical wall of the base, and the other end is against the positioning step of the pulley seat, and the positioning step of the pulley seat is pressed against the first vertical wall of the base through elastic force; the pulley is movably mounted on the first end of the pulley seat and is against the lower edge of the limit plate, thereby limiting the upward rotation of the long arm of the lever; one end of the rope B is connected to the second end of the pulley seat, and the other end is connected to the float B after passing through the guide wheel B, A net bag is provided in the sediment deposition chamber of the building pool body, and the net bag accommodates the connecting opening between the rear end of the kitchen waste collection pipe and the sediment deposition chamber and the connecting opening between the rear end of the toilet excrement collection pipe and the sediment deposition chamber. Its characteristics are: The steps of the method for automatically collecting and conveying kitchen and toilet waste slurry are as follows: S01, the kitchen waste collection pipe and toilet excrement collection pipe collect the user's kitchen waste and excrement respectively, and then discharge them into the sediment deposition chamber of the building pool body. The large pieces of garbage are intercepted by the net bag and retained in the net bag to be cleaned up by the staff in the future. The rest of the garbage falls into the sediment deposition chamber through the net bag. The small pieces of garbage with higher density in the rest of the garbage sink to the bottom of the sediment deposition chamber to be salvaged by the staff in the future. The kitchen and toilet waste slurry in the rest of the garbage flows into the mixed waste slurry holding chamber through the mesh holes on the grille plate. When the mixed waste slurry in the mixed waste slurry holding chamber accumulates to a certain liquid level, it is automatically discharged through the mixed waste slurry output pipe; In this step, the building pool body controls the opening or closing of the nozzle of the mixed waste slurry output pipe through the nozzle opening and closing control mechanism, thereby realizing the automatic discharge of the mixed waste slurry in the inner cavity of the building pool body; the working principle of the nozzle opening and closing control mechanism is as follows: a. In the initial state, the amount of mixed waste slurry in the inner cavity of the building pool body is small. As the mixed waste slurry in the mixed waste slurry containing cavity accumulates, the liquid level in the inner cavity of the building pool body is continuously raised until it overflows the float A, causing the long arm of the lever to tend to rotate upward, but because the lower edge of the limit plate is against the pulley, the upward rotation of the long arm of the lever is limited; b. As the mixed waste slurry in the mixed waste slurry containing chamber further accumulates, the liquid level in the inner cavity of the building pool body further rises, causing the float B to rise synchronously with the liquid level. When the liquid level in the inner cavity of the building pool body reaches the preset liquid level, the float B tightens the rope B under the action of its own buoyancy, and the tension of the rope B overcomes the elastic force of the spring, thereby pulling the pulley seat away from the lever, thereby causing the pulley to break contact with the lower edge of the limit plate; c. When the pulley is out of contact with the lower edge of the limit plate, the long arm of the lever immediately rotates upward under the buoyancy provided by the float A, thereby tightening the rope A. The cover plate is rotated to a horizontal state by the pulling of the rope A, so that the pipe opening of the mixed waste slurry output pipe at one end located in the mixed waste slurry receiving chamber is opened, and the mixed waste slurry in the mixed waste slurry receiving chamber is immediately discharged through the mixed waste slurry output pipe; d. As the waste slurry in the mixed waste slurry containing chamber is discharged, the liquid level in the inner cavity of the building pool body continues to drop, and the float B also loosens the rope B as the liquid level drops, causing the pulley seat to lose the pulling force of the rope B, and gradually moves toward the direction close to the lever under the elastic force of the spring. At the same time, the float A also drives the long arm of the lever to rotate downward as the liquid level drops, thereby loosening the rope A. The cover plate loses the pulling force of the rope A and then rotates downward under its own gravity, covering the pipe opening of the mixed waste slurry output pipe, thereby closing the pipe opening of the mixed waste slurry output pipe at one end located in the mixed waste slurry containing chamber. Finally, the pulley moves to a state of contact with the lower edge of the limit plate; e. Repeat the above steps a to d to achieve automatic discharge of the mixed waste slurry in the mixed waste slurry receiving chamber; S02, after the mixed waste slurry is discharged from the mixed waste slurry output pipe, it is sucked into the mixed waste slurry input pipe through the pipeline under the negative pressure of the inner cavity of the social pool body, and then sucked into the inner cavity of the social pool body. When the mixed waste slurry in the inner cavity of the social pool body accumulates to a certain liquid level, it is automatically discharged through the mixed waste slurry extraction pipe; In this step, the negative pressure in the inner cavity of the pool body is controlled by the negative pressure regulating mechanism A to be maintained at 0.15-1.5 kg / cm2, and then the mixed waste slurry discharged from the mixed waste slurry output pipe quickly enters the inner cavity of the pool body through the negative pressure assist; the working process of the negative pressure regulating mechanism A is as follows: the air pressure detection unit A detects the air pressure at the upper end of the inner cavity of the pool body in real time; when the liquid level in the inner cavity of the pool body rises, the volume of the inner cavity of the pool body decreases, and the pressure in the inner cavity of the pool body increases, when the air pressure detection unit A detects that the pressure in the inner cavity of the pool body increases to exceed the preset upper limit value, the vacuum pump A is immediately started to extract a part of the inner cavity of the pool body 2 Air is stored in the gas storage tank A, so that the pressure in the inner cavity of the social pool body is reduced to within 0.15-1.5kg / cm2; when the liquid level in the inner cavity of the social pool body drops and the pressure in the inner cavity of the social pool body is reduced to below the preset lower limit, the electric control valve on the pipeline connected to the exhaust port of the gas storage tank A is opened, and the gas stored in the gas storage tank A is input into the inner cavity of the social pool body through the pipeline under the action of the negative pressure in the inner cavity of the social pool body, so that the pressure in the inner cavity of the social pool body is increased to within 0.15-1.5kg / cm2; In this step, the mixed waste slurry in the inner cavity of the community pool body is controlled by the mixed waste slurry extraction mechanism to be automatically discharged through the mixed waste slurry extraction pipe; the working process of the mixed waste slurry extraction mechanism is: as more and more mixed waste slurry is accumulated in the inner cavity of the community pool body, its liquid level is also continuously raised. When the high liquid level calibrated by the high liquid level detection unit is reached, the sewage pump is started to extract the waste slurry in the inner cavity of the community pool body through the mixed waste slurry extraction pipe, and the liquid level in the inner cavity of the community pool body drops immediately. When the low liquid level calibrated by the low liquid level detection unit is reached, the sewage pump is closed; S03, after the mixed waste slurry is discharged from the inner cavity of the community pool through the mixed waste slurry extraction pipe, it passes through the sewage pump and the external pipeline in turn, enters the main collection station for fermentation, and produces biogas and farmyard manure; In this step, the main collection station controls the negative pressure in its inner cavity through the negative pressure regulating mechanism B, so that the mixed waste slurry in the external pipeline can quickly enter the inner cavity of the main collection station through the negative pressure assist mechanism B; the working process of the negative pressure regulating mechanism B is as follows: the air pressure detection unit B detects the air pressure at the upper end of the inner cavity of the main collection station in real time and controls the vacuum pump B to shut down or start, so as to maintain the pressure in the inner cavity of the main collection station within a certain range; when the vacuum pump B is started, the biogas in the inner cavity of the main collection station is drawn into the gas storage tank B for storage, and the gas storage tank B is connected to the biogas use terminal.

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