A type of cave for processing coarse grains

Abstract

This invention discloses a kiln for coarse grain processing, belonging to the field of kiln construction technology. The kiln includes: a kiln body, a water supply unit, a drainage unit, an S-shaped water trap, a water storage tank, a wastewater tank, an automatic sedimentation and separation module, and an intelligent drainage control unit. The water supply unit supplies cleaning water to the water storage tank; the drainage unit collects water from inside the kiln and the roof through floor drains; the wastewater tank collects processing wastewater; the automatic sedimentation and separation module is located between the wastewater tank and the drainage unit to separate starch particles; and the intelligent drainage control unit automatically controls the opening and closing of the drainage valve based on the water level in the wastewater tank and the drainage flow rate. This invention, through its design separating clean water and wastewater, automatic sedimentation and separation, and intelligent control, solves the problems of easy clogging, strong odor, and low automation in traditional coarse grain processing kilns, achieving effective treatment and discharge of coarse grain processing wastewater.

Description

Technical Field

[0001] This invention relates to the field of cave dwelling construction technology, and in particular to a cave dwelling for processing coarse grains. Background Technology

[0002] Cave dwellings, a traditional architectural form in Northwest my country, offer advantages such as warmth in winter and coolness in summer, as well as energy efficiency and environmental friendliness, and have been widely used in agricultural production scenarios such as coarse grain processing in recent years. However, the processing of coarse grains generates a large amount of wastewater containing starch granules, silt, and other impurities. Traditional cave dwellings used for coarse grain processing lack a proper drainage system, leading to the following problems in the discharge of processing wastewater: 1. Starch particles in wastewater are prone to deposit in drainage pipes, causing blockages; 2. The drainage pipes lack floor drains that can effectively prevent odors, allowing sewer smells to easily enter the room. Furthermore, drainage relies on manual operation and cannot be automated. 3. Poor drainage of water from the roof and roof of the cave dwelling affects the service life of the building.

[0003] Therefore, a kiln cave specifically designed for coarse grain processing and equipped with an intelligent drainage system is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a kiln for processing coarse grains, which solves the problems of easy blockage of drainage pipes, strong odor, and low degree of automation in traditional coarse grain processing kilns in the prior art.

[0005] This invention is implemented as follows: a kiln for processing coarse grains, comprising: The cave dwelling body is a single- or double-layer structure, including a roof and / or an accessible roof.

[0006] The water supply unit includes a vertical section installed inside the cave dwelling body and an underground section laid in the ditch; the vertical section of the water supply unit is provided with a tap extending into the cave dwelling for providing a source of cleaning water for coarse grain processing; the underground section of the water supply unit is provided with a filter assembly at its end.

[0007] The drainage unit includes a vertical section installed inside the cave dwelling body and an underground section located in the ditch. The vertical section of the drainage unit is connected to the interior of the cave dwelling body and the roof and / or accessible roof through a floor drain, respectively, for collecting and draining accumulated water. The underground section of the drainage unit is provided with a cleaning port at its end.

[0008] An S-shaped water trap is installed between the floor drain and the drainage unit to block sewer odors.

[0009] A water storage tank, located inside the cave dwelling with its opening directly below the faucet, is used to store cleaning water supplied by the water supply unit.

[0010] A wastewater pool is located inside the kiln, with its inlet connected to a floor drain inside the kiln, and is used to collect wastewater generated during the processing of coarse grains.

[0011] An automatic sedimentation and separation module is installed between the wastewater tank and the drainage unit. The inlet of the automatic sedimentation and separation module is connected to the outlet of the wastewater tank, and the outlet of the automatic sedimentation and separation module is connected to the underground section of the drainage unit. It is used to separate starch particles and precipitates in the wastewater.

[0012] The intelligent drainage control unit includes a controller, a water level sensor, a flow sensor, and an electronically controlled valve; The water level sensor is installed in the wastewater tank to monitor the water level; the flow sensor is installed on the pipe of the drainage unit to monitor the drainage flow; the electronic control valve is installed at the outlet of the drainage unit; the controller is electrically connected to the water level sensor, the flow sensor and the electronic control valve respectively, and is used to automatically control the opening and closing of the electronic control valve according to the water level of the wastewater tank and the drainage flow, so as to realize timely discharge of wastewater and prevent backflow.

[0013] The water supply unit and drainage unit are arranged in isolation from each other inside the cave dwelling via a trench.

[0014] A further technical solution of the present invention is: when the cave dwelling body is a double-layer structure, the accessible roof is provided with a first slope that is slightly higher in the middle and inclined on both sides, with a slope of 1%, and the accessible roof is connected to the drainage unit through a floor drain set at the end of the first slope; When the cave dwelling body is a single-layer structure, the roof is provided with a second slope that slopes to one side with a slope of 2%, and the roof is connected to the drainage unit through a floor drain located at the end of the second slope.

[0015] A further technical solution of the present invention is: the filtration assembly includes an outlet shut-off valve, a check valve, a water meter, a filter, and an inlet shut-off valve connected in sequence, which are used to ensure that the water supply meets the hygiene standards for coarse grain processing and to prevent backflow.

[0016] A further technical solution of the present invention is: the automatic sedimentation separation module includes a sedimentation tank, a screen disposed inside the sedimentation tank, and a sedimentation outlet communicating with the sedimentation tank.

[0017] A further technical solution of the present invention is: the vertical section of the drainage unit is provided with an inspection port, and the inspection port is located above the S-shaped water trap.

[0018] A further technical solution of the present invention is: a detachable cover plate is provided in the trench, and the pipes of the water supply unit and the drainage unit are arranged close to the wall or the inside of the trench.

[0019] A further technical solution of the present invention is: the water supply unit uses nano-antibacterial PP-R pipes for its pipelines, and the pipes are heat-fused together; the drainage unit uses PVC pipes for its pipelines, and the pipes are bonded together with socket-type adhesive.

[0020] A further technical solution of the present invention is: an automatic air vent valve is provided at the top of the vertical section of the water supply unit, and the automatic air vent valve extends to the outside of the cave body.

[0021] A further technical solution of the present invention is that the intelligent drainage control unit also includes a switching switch electrically connected to the controller.

[0022] A further technical solution of the present invention is: the bottom of the wastewater pool is provided with a sedimentation slope that slopes to one side, and a sewage outlet connected to the inlet of the automatic sedimentation and separation module is provided at the lowest point of the slope to guide the sediment to be discharged in a concentrated manner; the top of the wastewater pool is also provided with an openable observation cover.

[0023] The beneficial effects of this invention are: 1. The kiln for coarse grain processing of this invention, by separating the functions of clean water storage and wastewater collection and adding an automatic sedimentation and separation module, fundamentally solves the industry problem of starch particles in coarse grain processing wastewater easily clogging pipes. As shown in the diagram, the combination of the sloping bottom design of the wastewater tank and the cleanable sedimentation outlet achieves efficient accumulation and regular discharge of sediment, ensuring the long-term smooth flow of the drainage system and providing the possibility for the recycling of starch resources, significantly reducing maintenance frequency and costs.

[0024] 2. The coarse grain processing kiln of this invention is equipped with an intelligent drainage control unit, which can automatically open and close valves according to the wastewater pool level and pipeline flow rate, and has an anti-backflow function, realizing complete automation and precise control of the drainage process. Combined with the odor-proof design of the S-shaped water trap, easy-to-maintain inspection and cleaning ports, and customized sloping drainage solutions for different roof structures, this significantly improves drainage efficiency, enhances the working environment inside the kiln, and greatly strengthens the system's reliability and adaptability, providing a highly efficient, hygienic, and intelligent integrated drainage solution for the modern coarse grain processing of traditional kilns. Attached Figure Description

[0025] Figure 1 This is a water supply unit path diagram for the cave dwelling of the present invention; Figure 2 yes Figure 1 Enlarged view of a portion of point A in the middle; Figure 3This is a drainage unit path diagram of the cave dwelling of the present invention; Figure 4 yes Figure 3 Enlarged view of a section at point B in the middle; Figure 5 This is a cross-sectional view of the first floor of the cave dwelling of this invention; Figure 6 This is a cross-sectional view of the second-floor cave dwelling of the present invention; Figure 7 This is a floor plan of the water supply and drainage system of the cave dwelling of this invention; Figure 8 yes Figure 7 Enlarged view of a section at point C; Figure 9 This is a plan view of the water supply and drainage system on the second floor of the cave dwelling of this invention; Figure 10 This is a schematic diagram of the roof drainage of the cave dwelling of this invention; Figure 11 This is a schematic diagram of the drainage system for the accessible roof of the cave dwelling of this invention; Figure 12 This is a schematic diagram of the automatic sedimentation and separation module in the kiln of the present invention.

[0026] Figure label: 1. Cave dwelling body; 11. Roof; 111. Second slope; 12. Accessible roof; 121. First slope; 2. Water supply unit; 21. Faucet; 22. Filter assembly; 221. Outlet shut-off valve; 222. Check valve; 223. Water meter; 224. Filter; 225. Inlet shut-off valve; 23. Automatic air vent valve; 3. Ditch; 31. Removable cover; 4. Drainage unit; 41. Floor drain; 42. Cleanout port; 43. Inspection port; 5. S-shaped water trap; 6. Water storage tank; 7. Wastewater tank; 71. Sedimentation slope; 72. Sewage outlet; 73. Observation cover; 8. Automatic sedimentation and separation module; 81. Sedimentation tank; 82. Screen; 83. Sedimentation outlet; 9. Intelligent drainage control unit; 91. Controller; 92. Water level sensor; 93. Flow sensor; 94. Electronic control valve; 95. Switch. Detailed Implementation

[0027] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention. Example 1

[0029] Please see Figures 1 to 11 This embodiment provides a single-layer kiln for processing coarse grains.

[0030] In this embodiment, a kiln for processing coarse grains includes a kiln body 1, a water supply unit 2, a drainage unit 4, an S-shaped water trap 5, a water storage tank 6, a wastewater tank 7, an automatic sedimentation and separation module 8, and an intelligent drainage control unit 9.

[0031] The water supply unit 2 supplies cleaning water to the water storage tank 6; the drainage unit 4 collects water from inside the cave and the roof through the floor drain 41; the wastewater tank 7 collects processing wastewater; the automatic sedimentation and separation module 8 is set between the wastewater tank 7 and the drainage unit 4 to separate starch particles; and the intelligent drainage control unit 9 automatically controls the opening and closing of the drainage valve according to the water level of the wastewater tank and the drainage flow rate.

[0032] Specifically, such as Figure 5 As shown, the cave dwelling body 1 is a single-layer structure, including a roof 11. The roof 11 is provided with a second slope 111 that slopes to one side with a slope of 2%. At the end of the second slope 111, there is a floor drain 41, which is connected to the vertical section of the drainage unit 4 and is used to drain the water from the roof.

[0033] Furthermore, the interior floor of the cave dwelling 1 is equipped with floor drains 41 for collecting wastewater generated during the processing. Each floor drain 41 is connected to the vertical section of the drainage unit 4 by an S-shaped water trap 5 to effectively block sewer odors.

[0034] like Figure 1 As shown, the water supply unit 2 is introduced from an external water source, and its underground section is laid in the trench 3, with a filter assembly 22 at the end.

[0035] Specifically, the filter assembly 22 includes an outlet shut-off valve 221, a check valve 222, a water meter 223, a filter 224, and an inlet shut-off valve 225 connected in sequence to ensure hygienic water supply. At the same time, the vertical section of the water supply unit 2 extends upward and is equipped with an automatic air vent valve 23 at the top. The automatic air vent valve 23 extends to the outside of the cave body 1 to remove air from the pipes.

[0036] Multiple faucets 21 are installed on the vertical section to facilitate workers' access to cleaning water.

[0037] Specifically, the water storage tank 6 is located inside the cave dwelling on one side and is used to store cleaning water. The water storage tank 6 is located directly below the faucet 21 to facilitate the storage of water supplied by the water supply unit 2. It is particularly important to note that the bottom of the water storage tank 6 includes a drain valve, through which the water storage tank 6 is connected to the drainage unit 4 for drainage. When cleaning of the inside of the water storage tank 6 is required, the drain valve can be opened to drain the water from the water storage tank 6.

[0038] Specifically, the wastewater pool 7 is located on the other side of the kiln, and its inlet is connected to the floor drain 41 to collect processing wastewater. When coarse grains are processed, the wastewater generated during processing flows through the drainage channel surrounding the kiln body 1 to the floor drain 41, and finally flows into the wastewater pool 7 for collection and treatment.

[0039] Preferably, the bottom of the wastewater tank 7 is provided with a sedimentation slope 71 that slopes to one side, and a sewage outlet 72 is provided at the lowest point of the slope.

[0040] Preferably, the wastewater tank 7 is provided with an openable observation cover 73 on top to facilitate observation of the tank's contents.

[0041] Specifically, the automatic sedimentation and separation module 8 is installed between the wastewater tank 7 and the drainage unit 4. Its inlet is connected to the sewage outlet 72 of the wastewater tank 7, and its outlet is connected to the underground section of the drainage unit 4. The automatic sedimentation and separation module 8 is equipped with a sedimentation tank 81 and a screen 82 inside, and a cleanable sedimentation outlet 83 at the bottom. Starch particles and silt in the wastewater settle in the sedimentation tank 81, the screen 82 further filters out fine particles, and the sediment is periodically cleaned and discharged from the sedimentation outlet 83.

[0042] It should be noted that the automatic sedimentation separation module 8 and the wastewater tank 7 are not vertically aligned. That is, if the automatic sedimentation separation module 8 were underground, it would be impossible to clean the sediment in the sedimentation tank 81. Therefore, the automatic sedimentation separation module 8 and the wastewater tank 7 should be in a progressive spatial relationship. Horizontally, due to waste discharge requirements, they may not be on the same plane, but the sedimentation tank 81 is located on the ground to facilitate sediment treatment.

[0043] like Figure 2 As shown, drainage unit 4 also includes a vertical section and an underground section. The upper end of the vertical section of drainage unit 4 is connected to the floor drain 41, and the end of the underground section of drainage unit 4 is provided with a cleanout port 42. An inspection port 43 is provided above the S-shaped water trap 5 in the vertical section for easy unblocking. The underground section is laid in the trench 3, and the end is provided with a cleanout port 42 for pipe cleaning. A removable cover plate 31 is provided in the trench 3. The pipes of water supply unit 2 and drainage unit 4 are arranged close to the wall or the inside of the trench for easy maintenance.

[0044] Specifically, the intelligent drainage control unit 9 includes a controller 91, a water level sensor 92, a flow sensor 93, an electronic control valve 94, and a switching switch 95. The water level sensor 92 is installed in the wastewater tank 7 to monitor the water level in real time. The flow sensor 93 is installed on the underground section of the drainage unit 4. The electronic control valve 94 is installed at the outlet of the drainage unit 4. The controller 91 is a PLC programmable logic controller, electrically connected to the water level sensor 92, the flow sensor 93, the electronic control valve 94, and the switching switch 95.

[0045] Furthermore, the controller 91 is preset with a high water level threshold, such as 80% of the wastewater pool capacity; and a low water level threshold, such as 20% of the wastewater pool capacity.

[0046] When the water level sensor 92 detects that the water level has reached the high water level threshold, the controller 91 automatically opens the electronic control valve 94, and the wastewater is discharged through the drainage unit 4 after being treated by the automatic sedimentation and separation module 8; when the water level drops to the low water level threshold, the controller 91 closes the electronic control valve 94 and stops the drainage.

[0047] Flow sensor 93 is used to monitor drainage flow in real time. If a reverse flow trend is detected, controller 91 immediately closes electronic control valve 94 to prevent backflow. Switch 95 allows manual switching to manual control mode for easy maintenance or emergency operation. Under normal drainage conditions, fluid flows from wastewater tank 7 through drainage unit 4 to the external pipe network, and the flow direction detected by flow sensor 93 is forward (i.e., the preset discharge direction). When the water level in the external pipe network is higher than the drainage outlet, or when the external water pressure is greater after the system stops draining, the sewage in the pipe network will generate reverse pressure, attempting to flow back into drainage unit 4.

[0048] At this time, the flow sensor 93 can sense the instantaneous flow velocity and direction changes of the fluid in the pipe in real time. Once it detects that the fluid direction changes from forward to reverse (i.e., from the outside to the inside of the cave), or that a reverse flow trend occurs (such as a sudden drop in flow velocity, abnormal fluctuations, etc.), the sensor immediately transmits this signal to the controller 91. The controller 91 has a pre-set logic program for determining the flow direction. When it receives a reverse flow signal, the controller 91 determines that there is a "backflow risk" and will instantly (millisecond response) issue an emergency shut-off command to the electronic control valve 94. Example 2

[0049] This embodiment provides a double-layer coarse grain processing cave, whose overall structure is basically the same as that of Embodiment 1. The difference is that the cave body 1 is a double-layer structure, including a first-layer processing area and a second-layer functional area, and the second layer is provided with an accessible roof 12. Therefore, the drainage unit 4 needs to treat water from four sources simultaneously: processing wastewater from the first layer, domestic / production wastewater from the second layer, rainwater from the roof 11, and rainwater from the accessible roof 12.

[0050] The accessible roof 12, serving as a second-floor activity platform, can be used for drying grains, worker passage, or equipment placement. Due to its large area, rainwater accumulation is a significant issue. To prevent rainwater from seeping into the cave dwelling walls or affecting its usability, the accessible roof 12 employs the following drainage structure: 1. The accessible roof 12 is designed as a first slope 121 that is slightly higher in the middle and sloping on both sides, with a slope of 1%. This "A-shaped" or "arched" design ensures that rainwater is diverted to both sides, preventing water accumulation on the roof.

[0051] 2. Floor drains 41 are installed at the lowest points on both sides of the first slope 121, i.e., at the eaves. Each floor drain 41 is connected to the vertical section of the drainage unit 4 through an independent pipe.

[0052] 3. Each floor drain 41 is equipped with an S-shaped water trap 5 between the vertical section of the drainage unit 4 and the floor drain to prevent sewer odors from escaping to the outdoor activity space through the roof floor drain.

[0053] When rainfall occurs, rainwater flows along the first slope 121 to both sides, enters the drainage unit 4 through the floor drain 41, and is directly discharged into the underground section, eventually exiting outside the cave dwelling. Rainwater from the roof does not enter the wastewater tank 7, avoiding dilution of wastewater or increasing the burden on sedimentation and separation.

[0054] The second-level functional areas (such as the coarse grain storage area, simple processing area, or living area) are also equipped with floor drains 41 to collect wastewater generated on this level. The detailed drainage path is as follows: Wastewater flows downwards through the floor drain 41 on the second floor via pipes laid within the floor slab, merging with the vertical section of the drainage unit 4 on the first floor. At this point, wastewater generated on the second floor flows downwards through the vertical section of drainage unit 4 into wastewater tank 7, where it is combined with the processing wastewater from the first floor for further treatment. This is because the wastewater from the second floor also contains starch particles or impurities and needs to be treated by the automatic sedimentation and separation module 8 before being discharged.

[0055] Since the second-level drainage point is at a higher elevation, in order to prevent the formation of negative pressure in the pipe during drainage and thus damage to the water seal, an extended vent pipe is installed at the top of the drainage unit 4 (i.e. above the second level). This vent pipe can be installed separately from the automatic air vent valve 23 of the water supply unit 2, or it can be combined and led out to the outside of the kiln body 1.

[0056] In the double-layer structure, the vertical section of drainage unit 4 runs through the first and second floors, forming the main riser. This main riser has an interface on each floor, which connects to: the first-floor floor drain, which collects the processing wastewater from the first floor and flows into the wastewater tank 7; the second-floor floor drain, which collects the domestic / production wastewater from the second floor and flows downward into the wastewater tank 7; and the accessible roof floor drain, which collects roof rainwater and discharges it directly into the underground section without passing through the wastewater tank.

[0057] The main riser enters the underground trench 3 via an elbow at the bottom of the first floor, forming an underground section. Before entering the wastewater tank 7, the underground section has a tee joint for connecting to the outlet of the automatic sedimentation and separation module 8. The treated wastewater and roof rainwater converge in the underground section and are discharged outdoors together.

[0058] In a preferred embodiment of the present invention, the water supply unit 2 uses nano-antibacterial PP-R pipes, and the pipes are connected by heat fusion to ensure hygienic water supply and reliable connection. The drainage unit 4 uses UPVC pipes, and the pipes are bonded by socket adhesive, which is corrosion resistant and easy to install.

[0059] The method of using the kiln for coarse grain processing according to this invention is as follows: S1, Water Intake Stage: External water enters through water supply unit 2, is purified by filter component 22, and is stored in water storage tank 6. Workers turn on tap 21 to use the washing water for coarse grain processing.

[0060] S2. Wastewater collection stage: Wastewater generated during processing enters the vertical section of drainage unit 4 through floor drain 41, and after passing through S-shaped water trap 5 to prevent odor, it flows into wastewater pool 7 for temporary storage.

[0061] S3. Sedimentation and Separation Stage: Wastewater undergoes initial sedimentation in wastewater tank 7, with large particles settling to the bottom and accumulating along sedimentation slope 71 to discharge outlet 72. When the intelligent drainage control unit 9 starts drainage, wastewater enters the automatic sedimentation and separation module 8 from discharge outlet 72, where starch particles and sediment are further separated through sedimentation tank 81 and screen 82.

[0062] S4, Intelligent Discharge Stage: Controller 91 automatically controls the opening and closing of electronic control valve 94 based on data from water level sensor 92. The treated wastewater is discharged from the kiln through the underground section of drainage unit 4. Flow sensor 93 monitors the drainage status to prevent backflow.

[0063] S5. Maintenance phase: Regularly clean the sediment through sedimentation outlet 83, unclog the pipes through inspection port 43 and cleaning port 42, and check the internal condition of wastewater tank 7 through observation cover 73.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cave dwelling for processing coarse grains, characterized in that, include: The cave dwelling body (1) is a single-layer or double-layer structure, including a roof (11) and / or an accessible roof (12). Water supply unit (2), the water supply unit (2) includes a vertical section installed in the cave body (1) and an underground section laid in the ditch (3); the vertical section of the water supply unit (2) is provided with a faucet (21) extending into the cave, for providing cleaning water source for coarse grain processing; the underground section of the water supply unit (2) is provided with a filter assembly (22) at the end. The drainage unit (4) also includes a vertical section located in the cave body (1) and an underground section located in the ditch (3). The vertical section of the drainage unit (4) is connected to the interior of the cave body (1) and the roof (11) and / or accessible roof (12) through a floor drain (41) to collect and drain water. The underground section of the drainage unit (4) is provided with a cleaning port (42) at its end. An S-shaped water trap (5) is installed between the floor drain (41) and the drainage unit (4) to block sewer odors; A water storage tank (6) is set inside the cave dwelling, with its opening located directly below the water tap (21), for storing cleaning water supplied by the water supply unit (2); Wastewater pool (7) is set inside the cave dwelling, and its inlet is connected to the floor drain (41) inside the cave dwelling, for collecting wastewater generated during the processing of coarse grains; An automatic sedimentation separation module (8) is installed between the wastewater tank (7) and the drainage unit (4). The inlet of the automatic sedimentation separation module (8) is connected to the outlet of the wastewater tank (7), and the outlet of the automatic sedimentation separation module (8) is connected to the underground section of the drainage unit (4). It is used to separate starch particles and sediments in the wastewater. The intelligent drainage control unit (9) includes a controller (91), a water level sensor (92), a flow sensor (93), and an electronically controlled valve (94). The water level sensor (92) is installed in the wastewater tank (7) to monitor the water level of the wastewater tank (7); the flow sensor (93) is installed on the pipe of the drainage unit (4) to monitor the drainage flow; the electronic control valve (94) is installed at the outlet of the drainage unit (4); the controller (91) is electrically connected to the water level sensor (92), the flow sensor (93) and the electronic control valve (94) respectively, and is used to automatically control the opening and closing of the electronic control valve (94) according to the water level and drainage flow of the wastewater tank (7) to realize timely discharge of wastewater and prevent backflow. The water supply unit (2) and drainage unit (4) are arranged in isolation from each other inside the cave by a ditch (3).

2. The kiln for processing coarse grains according to claim 1, characterized in that: When the cave dwelling body (1) is a double-layer structure, the accessible roof (12) is provided with a first slope (121) that is slightly higher in the middle and inclined on both sides, with a slope of 1%. The accessible roof (12) is connected to the drainage unit (4) through the floor drain (41) set at the end of the first slope (121). When the cave dwelling body (1) is a single-layer structure, the roof (11) is provided with a second slope (111) that slopes to one side with a slope of 2%. The roof (11) is connected to the drainage unit (4) through a floor drain (41) set at the end of the second slope (111).

3. The kiln for processing coarse grains according to claim 1, characterized in that: The filter assembly (22) includes an outlet shut-off valve (221), a check valve (222), a water meter (223), a filter (224), and an inlet shut-off valve (225) connected in sequence to ensure that the water supply meets the hygiene standards for coarse grain processing and to prevent backflow.

4. The kiln for processing coarse grains according to claim 1, characterized in that, The automatic sedimentation separation module (8) includes a sedimentation tank (81), a screen (82) disposed inside the sedimentation tank (81), and a sedimentation outlet (83) communicating with the sedimentation tank (81).

5. The kiln for processing coarse grains according to claim 1, characterized in that: The vertical section of the drainage unit (4) is provided with an inspection port (43), and the inspection port (43) is located above the S-shaped water trap (5).

6. The cave dwelling for processing coarse grains according to claim 1, characterized in that, A removable cover plate (31) is installed inside the trench (3), and the pipes of the water supply unit (2) and the drainage unit (4) are arranged close to the wall or the inside of the trench.

7. The kiln for processing coarse grains according to claim 1, characterized in that, The water supply unit (2) uses nano antibacterial PP-R pipes for its pipelines, and the pipes are heat-fused together; the drainage unit (4) uses PVC pipes for its pipelines, and the pipes are bonded together with socket adhesive.

8. The kiln for processing coarse grains according to claim 1, characterized in that: An automatic air vent valve (23) is provided at the top of the vertical section of the water supply unit (2), and the automatic air vent valve (23) extends to the outside of the cave body (1).

9. A kiln for processing coarse grains according to claim 1, characterized in that: The intelligent drainage control unit (9) also includes a switching switch (95) electrically connected to the controller (91).

10. A kiln for processing coarse grains according to claim 1, characterized in that: The bottom of the wastewater tank (7) is provided with a sedimentation slope (71) that slopes to one side, and a drain outlet (72) connected to the inlet of the automatic sedimentation separation module (8) is provided at the lowest point of the slope to guide the sediment to be discharged in a concentrated manner; the top of the wastewater tank (7) is also provided with an openable observation cover (73).

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