Mixing station waste slurry homogenization zero discharge system, platform and method

Abstract

The invention relates to the technical field of waste slurry treatment, in particular to a stirring station waste slurry homogenization zero-emission system, platform and method. The device comprises a vertically-arranged waste slurry homogenizer, the waste slurry homogenizer is installed at the top of a primary slurry stirring pool / tank and the top of a finished product pool / tank, the waste slurry homogenizer controls a mixer to pump sewage, clear water and a homogenizing agent according to a certain proportion for mixing, and controls a pneumatic butterfly valve to convey homogenized waste slurry water to the finished product pool / tank according to a certain amount. The waste slurry homogenizer is vertically mounted at the top of the primary slurry stirring pool / tank and the top of the finished product pool / tank, so that the occupied area is saved, and sewage, clear water and a homogenizing agent are mixed in proportion through a mixer, so that efficient homogenization of waste slurry is realized; a flowmeter and a metering hopper are respectively added at an inlet and an outlet, the weight of the waste slurry is monitored in real time by combining a sensor, the waste slurry amount before and after homogenization is controlled, and the homogenization effect is ensured; intelligent monitoring of the system is realized through a liquid level detection module, an operation state monitoring module, an equipment parameter monitoring module, a log recording module and the like, and zero discharge of sewage is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of waste slurry treatment, and in particular to a zero-emission system, platform and method for homogenizing waste slurry in a mixing station. Background Art

[0002] In the context of rapid social development, saving resources and protecting the environment to achieve sustainable development have attracted much attention. As an important part of social infrastructure construction, commercial concrete has developed rapidly. In this process, sand and gravel recycling and zero discharge of slurry water have become the goals pursued by production companies. However, the treatment of wastewater from mixing stations has always been a major problem. Previously, although those skilled in the art have made efforts, such as the high-efficiency and energy-saving building slurry mixing device with Chinese patent publication number CN117885211A, there are still shortcomings. This solution adopts a flat layout, the equipment occupies a large area, and the space utilization rate is low; the mixing ratio control is unreasonable, which affects the homogenization effect and efficiency, and there is no monitoring and control of the waste slurry volume; the lack of an intelligent monitoring module makes it difficult to achieve comprehensive system monitoring and intelligent management, which is not conducive to zero sewage discharge and environmental protection. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a zero-discharge system, platform and method for homogenizing waste slurry in a mixing station.

[0004] The technical solution adopted in the present invention is as follows: A waste slurry homogenization zero-emission system for a mixing station includes a vertical waste slurry homogenizer installed on the top of a raw slurry mixing tank / tank and a finished product tank / tank to achieve zero waste slurry emission; the inlet of the waste slurry homogenizer is respectively connected to the raw slurry mixing tank / tank, the clean water tank / tank and the homogenizer tank / tank, and the outlet of the waste slurry homogenizer is connected to the finished product tank / tank, wherein: The waste slurry homogenizer includes a rectangular pool / tank body IV, and a mixer is provided on one side of the pool / tank body IV. The inlet of the mixer is connected to the raw slurry stirring pool / tank, the clean water pool / tank and the equalizer pool / tank through pipelines, and a flow meter is provided on the pipeline; the outlet of the mixer is connected to the finished product pool / tank through a metering hopper, and several groups of sensors are provided on the top of the metering hopper; an electric control cabinet is provided in the waste slurry homogenizer, and the electric control cabinet controls the mixer to draw in sewage, clean water and equalizer in a certain proportion for mixing, and controls the pneumatic butterfly valve to transport the homogenized waste slurry water to the finished product pool / tank in a certain metering manner.

[0005] This technical solution improves the installation position of the waste slurry homogenizer, fully utilizes the advantages of the vertical layout, and places the waste slurry homogenizer above the raw slurry mixing pool / tank and the finished product pool / tank to save floor space; optimizes the internal structure of the waste slurry homogenizer, and adds flow meters and metering buckets at the inlet and outlet respectively to control the waste slurry before and after homogenization; the entire system has a reasonable layout and high working efficiency, which is very suitable for wastewater monitoring and metering in mixing stations, has no adverse effect on the quality of concrete in the mixing station, and ultimately achieves the goal of zero wastewater discharge.

[0006] In addition, the above-mentioned mixing station waste slurry homogenization zero-discharge system proposed by the present invention may also have the following additional technical features: According to one embodiment of the present invention, the raw pulp stirring pool / tank includes a circular pool / tank body Ⅰ, and a stirring motor Ⅰ is installed on the top of the pool / tank body Ⅰ, and the stirring motor Ⅰ is connected to the stirring impeller Ⅰ through the stirring shaft Ⅰ; the stirring impeller Ⅰ drives the waste pulp in the pool / tank body Ⅰ to stir; the bottom of the pool / tank body Ⅰ transports the waste pulp to the pipeline Ⅰ through the water pump Ⅰ; the side of the pool / tank body Ⅰ is also installed with a liquid level meter Ⅰ.

[0007] In this technical solution, the output shaft of the stirring motor I is connected to one end of the stirring shaft I to transmit rotational power; the other end of the stirring shaft I is connected to the stirring impeller I to drive the stirring impeller to rotate; the stirring motor I is fixed to the top of the pool / tank body I by bolts; the water pump I is installed at the bottom of the pool / tank body I through a flange; the outlet of the water pump I is connected to one end of the pipeline I, and the waste slurry is drawn into the pipeline and transported out through the water pump; the liquid level meter I is installed on the side of the pool / tank body I by bolts, and its sensing probe extends into the pool / tank body I to monitor the liquid level.

[0008] According to one embodiment of the present invention, the clean water pool / tank includes a pool / tank body II, a water pump II and a pipeline II. The pool / tank body II contains clean water, and the water pump II pumps the clean water from the bottom of the pool / tank body II through the pipeline II to the waste slurry homogenizer.

[0009] In this technical solution, water pump II is fixed to the bottom of pool / tank II through a flange, and the outlet of water pump II is tightly connected to one end of pipeline II. After being pumped out from water pump II, clean water can smoothly enter pipeline II. The other end of pipeline II is connected to the waste slurry homogenizer to transport the clean water to the waste slurry homogenizer.

[0010] According to one embodiment of the present invention, the homogenizer pool / tank includes a pool / tank body III, a water pump III and a pipeline III. The pool / tank body III contains the homogenizer, and the water pump III pumps the homogenizer from the bottom of the pool / tank body III through the pipeline III to the waste slurry homogenizer.

[0011] In this technical solution, water pump III is fixed to the bottom of pool / tank III through a flange, and the inlet of water pump III is connected to the interior of pool / tank III; The outlet of water pump III is connected to one end of pipeline III, and the homogenizer can enter pipeline III smoothly and sealed after being pumped out from water pump III; the other end of pipeline III is connected to the waste slurry homogenizer, and the homogenizer is transported to the waste slurry homogenizer to achieve mixing of the homogenizer and the waste slurry.

[0012] According to one embodiment of the present invention, the finished product pool / tank includes a rectangular pool / tank body V, and a stirring motor II is installed on the top of the pool / tank body V, which is connected to the stirring impeller II through the stirring shaft II; the stirring impeller II drives the homogenized waste slurry water in the pool / tank body V to stir; a water pump IV and a water pump V are provided at the bottom of the pool / tank body V, and the water pump IV is connected to the outlet of the pneumatic butterfly valve through the pipeline IV, which is used to transport the homogenized waste slurry water to the pool / tank body V; the water pump V transports it back to the mixing station through the pipeline V; a liquid level meter II is also installed on the side of the pool / tank body V.

[0013] In this technical solution, the stirring motor II is fixed to the top of the pool / tank body V by bolts, and the output shaft of the stirring motor II is connected to one end of the stirring shaft II to transmit rotational power; the other end of the stirring shaft II is connected to the stirring impeller II to drive the stirring impeller II to rotate; the outlet of the water pump IV is connected to one end of the pipeline IV, and the waste slurry water can smoothly enter the pipeline IV; the other end of the pipeline IV is connected to the outlet of the pneumatic butterfly valve, and the inlet of the pneumatic butterfly valve is connected to the waste slurry homogenizer; the outlet of the water pump V is connected to one end of the pipeline V to transport the homogenized waste slurry water back to the mixing station; the liquid level meter II is installed on the side of the pool / tank body V by bolts, and its sensing probe extends into the pool / tank body V to monitor the liquid level.

[0014] According to one embodiment of the present invention, a pneumatic butterfly valve is provided below the raw slurry stirring tank / tank, the waste slurry homogenizer and the finished product tank / tank. The pneumatic butterfly valve is connected to the air compressor to discharge the sewage into the conical tank in the sand and gravel separation system. The fine sand is extracted through the slurry pump and the cyclone, and the sewage is further circulated.

[0015] In this technical solution, the pneumatic butterfly valve is connected to the air compressor through an air pipe; the air compressor provides compressed air, which is transmitted to the pneumatic butterfly valve through the air pipe to control its opening or closing; the outlet of the pneumatic butterfly valve is connected to one end of the sewage discharge pipeline; the other end of the sewage discharge pipeline extends to above the sewage pool.

[0016] According to one embodiment of the present invention, the measuring hopper is conical in shape, and three sets of weighing sensors are arranged on its periphery; the periphery of the measuring hopper is fixed in the pool / tank body IV by a bracket.

[0017] In this technical solution, the sensor consists of an elastomer and a strain gauge. The elastomer is fixed around the measuring bucket and undergoes a slight deformation due to the pressure of the waste pulp weight. The strain gauge is tightly attached to the elastomer. The strain gauge changes its internal resistance value according to the degree of deformation detected. The change in resistance value generates an electrical signal proportional to the weight of the waste pulp, thereby realizing the measurement of the waste pulp weight.

[0018] In order to achieve the above-mentioned purpose, the present invention also provides a mixing station waste slurry homogenization zero-emission platform.

[0019] A zero-emission platform for homogenizing waste slurry in a mixing station, comprising the following modules: Liquid level detection module, used to detect the liquid level height in the raw pulp mixing tank / tank and the finished product tank / tank, and determine whether it has reached the lower limit or upper limit; The operation status module is used to detect the operation status of the water pumps in the raw pulp mixing tank / tank, clean water tank / tank, homogenizer tank / tank and finished product tank / tank, and determine whether there is a fault; The equipment parameter module is used to detect the values detected by the meter in the waste pulp homogenizer, including the real-time weight of the meter, the density value of the meter, the re-measured density value, the target density value, the target amount of clean water added, the single external metering, and the cumulative external metering; Mode switching module, used to select manual or automatic adjustment of operation status module and equipment parameter module; The log recording module is used to query historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data, to achieve the purpose of visualization, adjustment, availability, and controllability.

[0020] In order to achieve the above-mentioned purpose, the present invention also provides a zero-discharge method for homogenizing waste slurry from a mixing station.

[0021] A zero-discharge method for homogenizing waste slurry in a mixing station comprises the following steps: S1. The stirring motor I in the raw pulp stirring tank / tank is started, and the stirring impeller I is driven to rotate through the stirring shaft I to stir the waste pulp in the tank / tank body I; the liquid level meter I monitors the liquid level of the waste pulp in the raw pulp stirring tank / tank. When the liquid level reaches the set value, the water pump I is started to transport the waste pulp through the pipeline I to the mixer inlet of the waste pulp homogenizer; the water pump II in the clean water tank / tank is started to pump the clean water in the tank / tank body II through the pipeline II to the mixer inlet of the waste pulp homogenizer; the water pump III in the homogenizer tank / tank is started to pump the homogenizer in the tank / tank body III through the pipeline III to the mixer inlet of the waste pulp homogenizer; S2. The electric control cabinet in the waste slurry homogenizer starts the mixer, fully mixing the sewage, clean water and homogenizing agent in the mixer to form homogenized waste slurry water; the sensor on the top of the metering hopper monitors and records the weight of the waste slurry water in real time; the mixed waste slurry water enters the finished product pool / tank through the metering hopper; S3. The stirring motor II in the finished product tank / tank is started, and the stirring impeller II is driven to rotate through the stirring shaft II to stir the homogenized waste water in the tank / tank body V to prevent sedimentation; the liquid level meter II monitors the liquid level of the waste water in the finished product tank / tank; the water pump IV is started to transport the homogenized waste water to the finished product tank / tank through the pipeline IV; the water pump V is started to transport the waste water back to the mixing station through the pipeline V; S4. Each time after the waste slurry water is prepared, water is pumped from the clean water tank / tank to clean the waste slurry homogenizer to ensure the accuracy of each test value. Pneumatic butterfly valves are installed under the waste slurry homogenizer, raw slurry mixing tank / tank and finished product tank / tank to discharge water into the sewage tank and finished product tank / tank generated by the wet concrete separator through pipelines.

[0022] In order to achieve the above-mentioned purpose, the present invention also provides a zero-discharge method for homogenizing waste slurry from a mixing station.

[0023] A zero-discharge method for homogenizing waste slurry in a mixing station comprises the following steps: The liquid level detection module detects the liquid level height in the raw pulp mixing tank / tank and the finished product tank / tank in real time, compares the detected liquid level data with the preset lower and upper limits, and determines whether the liquid level reaches the conditions that require processing; The operation status module continuously monitors the operation status of the water pumps in the raw pulp mixing tank / tank, clean water tank / tank, homogenizer tank / tank, and finished product tank / tank to detect whether the water pumps are operating normally and whether any faults occur. If a fault is detected, the operation status module will issue an alarm and record the fault information. The equipment parameter module obtains the detection values of the meter in the waste slurry homogenizer in real time, including the real-time weight of the metering scale, the density value of the metering scale, the re-measured density value, the target density value, the target amount of clean water added, the single additional metering, and the cumulative additional metering. Based on the equipment parameter data, the feed and discharge amounts of each pool / tank are automatically or manually adjusted to ensure that the waste slurry homogenization process meets the preset targets. The log recording module continuously records the system's historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data.

[0024] Compared with the prior art, the present invention has the following beneficial effects: (1) The homogenizer tank / tank is installed vertically on the top of the raw pulp mixing tank / tank and the finished product tank / tank, saving floor space. The mixer mixes sewage, clean water and homogenizer in proportion to achieve efficient homogenization of waste pulp and improve work efficiency. (2) The system adds flow meters and metering buckets at the inlet and outlet respectively, and combines sensors to monitor the weight of waste slurry in real time, accurately controlling the amount of waste slurry before and after homogenization to ensure the homogenization effect; (3) Through modules such as liquid level detection, operation status monitoring, equipment parameter monitoring and log recording, the system can be intelligently monitored to ensure zero sewage discharge and reduce environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural diagram of the raw pulp stirring tank / tank.

[0027] Figure 3 It is a structural diagram of the clear water pool / tank.

[0028] Figure 4 It is a structural diagram of the equalizer pool / tank.

[0029] Figure 5 This is one of the structural diagrams of the waste slurry homogenizer.

[0030] Figure 6 This is the second structural diagram of the waste slurry homogenizer.

[0031] Figure 7 It is a structural diagram of the finished product pool / tank.

[0032] Figure 8 It is an interface diagram of the platform of the present invention.

[0033] In the figure: 1. Raw pulp mixing tank / tank; 11. Tank / tank body I; 12. Mixing motor I; 13. Mixing shaft I; 14. Mixing impeller I; 15. Water pump I; 16. Pipeline I; 17. Liquid level gauge I; 2. Clean water tank / tank; 21. Tank / tank body II; 22. Water pump II; 23. Pipeline II; 3. Homogenizer tank / tank; 31. Tank / tank body III; 32. Water pump III; 33. Pipeline III; 4. Waste pulp homogenization 41. Tank / Pool IV; 42. Flow meter; 43. Mixer; 44. Pneumatic butterfly valve; 45. Electric control cabinet; 46. Measuring hopper; 47. Sensor; 5. Finished product tank / pond; 51. Tank / Pool V; 52. Stirring motor II; 53. Stirring shaft II; 54. Stirring impeller II; 55. Water pump IV; 56. Pipeline IV; 57. Water pump V; 58. Pipeline V; 59. Liquid level gauge II; 6. Air compressor. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Example 1 like Figure 1 As shown, this embodiment provides a waste slurry homogenization zero-emission system for a mixing station, including a vertical waste slurry homogenizer 4, which is installed on the top of the raw slurry mixing tank / tank 1 and the finished product tank / tank 5 to achieve zero waste slurry discharge; the inlet of the waste slurry homogenizer 4 is respectively connected to the raw slurry mixing tank / tank 1, the clear water tank / tank 2 and the homogenizer tank / tank 3, and the outlet of the waste slurry homogenizer 4 is connected to the finished product tank / tank 5, wherein: like Figures 5 and 6 As shown, the waste slurry homogenizer 4 includes a rectangular pool / tank body IV41, and a mixer 43 is provided on one side of the pool / tank body IV41. The inlet of the mixer 43 is connected to the raw slurry stirring pool / tank 1, the clean water pool / tank 2 and the equalizer pool / tank 3 through pipelines, and a flow meter 42 is provided on the pipeline; the outlet of the mixer 43 is connected to the finished product pool / tank 5 through a metering hopper 46, and several groups of sensors 47 are provided on the top of the metering hopper 46; an electric control cabinet 45 is provided in the waste slurry homogenizer 4, and the electric control cabinet 45 controls the mixer 43 to draw in sewage, clean water and equalizer in a certain proportion for mixing, and controls the pneumatic butterfly valve 44 to transport the homogenized waste slurry water to the finished product pool / tank 5 in a certain metering manner.

[0036] This technical solution improves the installation position of the waste slurry homogenizer 4, fully utilizes the advantages of the vertical layout, and places the waste slurry homogenizer 4 above the raw slurry mixing tank / tank 1 and the finished product tank / tank 5 to save floor space; optimizes the internal structure of the waste slurry homogenizer 4, and adds a flow meter 42 and a metering bucket 46 at the inlet and outlet respectively to control the waste slurry before and after homogenization; the entire system has a reasonable layout and high working efficiency, and is very suitable for monitoring and metering sewage in the mixing station, has no adverse effect on the quality of the concrete in the mixing station, and ultimately achieves the goal of zero sewage discharge.

[0037] In addition, the above-mentioned mixing station waste slurry homogenization zero-discharge system proposed by the present invention may also have the following additional technical features: like Figure 2 As shown, the raw pulp stirring pool / tank 1 includes a circular pool / tank body Ⅰ11, and a stirring motor Ⅰ12 is installed on the top of the pool / tank body Ⅰ11, and the stirring motor Ⅰ12 is connected to the stirring impeller Ⅰ14 through the stirring shaft Ⅰ13; the stirring impeller Ⅰ14 drives the waste pulp in the pool / tank body Ⅰ11 to stir; the bottom of the pool / tank body Ⅰ11 transports the waste pulp to the pipeline Ⅰ16 through the water pump Ⅰ15; the side of the pool / tank body Ⅰ11 is also installed with a liquid level meter Ⅰ17.

[0038] In this technical solution, the output shaft of the stirring motor Ⅰ12 is connected to one end of the stirring shaft Ⅰ13 to transmit rotational power; the other end of the stirring shaft Ⅰ13 is connected to the stirring impeller Ⅰ14 to drive the stirring impeller to rotate; the stirring motor Ⅰ12 is fixed to the top of the pool / tank body Ⅰ11 by bolts; the water pump Ⅰ15 is installed at the bottom of the pool / tank body Ⅰ11 through a flange; the outlet of the water pump Ⅰ15 is connected to one end of the pipeline Ⅰ16, and the waste slurry is drawn into the pipeline through the water pump and transported out; the liquid level meter Ⅰ17 is installed on the side of the pool / tank body Ⅰ11 by bolts, and its sensing probe extends into the pool / tank body Ⅰ11 to monitor the liquid level.

[0039] like Figure 3 As shown, the clean water pool / tank 2 includes a pool / tank body II 21, a water pump II 22 and a pipeline II 23. The pool / tank body II 21 contains clean water, and the water pump II 22 pumps the clean water from the bottom of the pool / tank body II 21 through the pipeline II 23 to the waste slurry homogenizer 4.

[0040] In this technical solution, water pump II 22 is fixed to the bottom of the pool / tank II 21 through a flange, and the outlet of water pump II 22 is tightly connected to one end of pipeline II 23. After being pumped out from water pump II 22, clean water can smoothly enter pipeline II 23. The other end of pipeline II 23 is connected to the waste slurry homogenizer 4 to transport the clean water to the waste slurry homogenizer 4.

[0041] like Figure 4 As shown, the homogenizer pool / tank 3 includes a pool / tank body III31, a water pump III32 and a pipeline III33. The pool / tank body III31 contains the homogenizer, and the water pump III32 sucks the homogenizer from the bottom of the pool / tank body III31 through the pipeline III33 to the waste slurry homogenizer 4.

[0042] In this technical solution, the water pump III 32 is fixed to the bottom of the pool / tank III 31 through a flange, and the inlet of the water pump III 32 is connected to the interior of the pool / tank III 31; The outlet of water pump III 32 is connected to one end of pipeline III 33, and the homogenizer can enter pipeline III 33 smoothly and sealed after being drawn out from water pump III 32; the other end of pipeline III 33 is connected to the waste slurry homogenizer 4, and the homogenizer is transported to the waste slurry homogenizer 4 to achieve mixing of the homogenizer and the waste slurry.

[0043] like Figure 7As shown, the finished product pool / tank 5 includes a rectangular pool / tank body V51, and a stirring motor II52 is installed on the top of the pool / tank body V51, and the stirring motor II52 is connected to the stirring impeller II54 through the stirring shaft II53; the stirring impeller II54 drives the homogenized waste slurry water in the pool / tank body V51 to stir; a water pump IV55 and a water pump V57 are provided at the bottom of the pool / tank body V51, and the water pump IV55 is connected to the outlet of the pneumatic butterfly valve 44 through the pipeline IV56, for conveying the homogenized waste slurry water to the pool / tank body V51; the water pump V57 conveys it back to the mixing station through the pipeline V58; a liquid level meter II59 is also installed on the side of the pool / tank body V51.

[0044] In this technical solution, the stirring motor II52 is fixed to the top of the pool / tank body V51 by bolts, and the output shaft of the stirring motor II52 is connected to one end of the stirring shaft II53 to transmit rotational power; the other end of the stirring shaft II53 is connected to the stirring impeller II54 to drive the stirring impeller II54 to rotate; the outlet of the water pump IV55 is connected to one end of the pipeline IV56, and the waste slurry water can smoothly enter the pipeline IV56; the other end of the pipeline IV56 is connected to the outlet of the pneumatic butterfly valve 44, and the inlet of the pneumatic butterfly valve 44 is connected to the waste slurry homogenizer 4; the outlet of the water pump V57 is connected to one end of the pipeline V58, which is used to transport the homogenized waste slurry water back to the mixing station; the liquid level meter II59 is installed on the side of the pool / tank body V51 by bolts, and its sensing probe extends into the pool / tank body V51 to monitor the liquid level.

[0045] According to one embodiment of the present invention, a pneumatic butterfly valve 44 is provided below the raw slurry stirring tank / tank 1, the waste slurry homogenizer 4 and the finished product tank / tank 5. The pneumatic butterfly valve 44 is connected to the air compressor 6 to discharge the sewage into the conical tank in the sand and gravel separation system. The fine sand is extracted through the slurry pump and the cyclone, and the sewage is further circulated.

[0046] In this technical solution, the pneumatic butterfly valve 44 is connected to the air compressor 6 through an air pipe; the air compressor 6 provides compressed air, which is transmitted to the pneumatic butterfly valve 44 through the air pipe to control its opening or closing; the outlet of the pneumatic butterfly valve 44 is connected to one end of the sewage discharge pipeline; the other end of the sewage discharge pipeline extends to above the sewage pool.

[0047] According to one embodiment of the present invention, the measuring hopper 46 is conical in shape, and three sets of weighing sensors 47 are provided on its periphery; the periphery of the measuring hopper 46 is fixed in the pool / tank IV 41 by a bracket.

[0048] In this technical solution, the sensor 47 is composed of an elastomer and a strain gauge. The elastomer is fixed around the measuring bucket 46 and undergoes a slight deformation due to the pressure of the waste pulp weight; the strain gauge is tightly attached to the elastomer. The strain gauge changes its internal resistance value according to the degree of deformation detected. The change in resistance value generates an electrical signal proportional to the weight of the waste pulp, thereby realizing the measurement of the waste pulp weight.

[0049] In order to achieve the above-mentioned purpose, the present invention also provides a mixing station waste slurry homogenization zero-emission platform.

[0050] like Figure 8 As shown, the present invention also provides a mixing station waste slurry homogenization zero-discharge platform, which includes the following modules: Liquid level detection module, used to detect the liquid level height in the raw pulp mixing tank / tank 1 and the finished product tank / tank 5, and determine whether it has reached the lower limit or the upper limit; The operating status module is used to detect the operating status of the water pumps in the raw pulp mixing tank / tank 1, the clean water tank / tank 2, the homogenizer tank / tank 3 and the finished product tank / tank 5, and determine whether there is a fault; The equipment parameter module is used to detect the values detected by the meter in the waste pulp homogenizer 4, including the real-time weight of the meter, the density value of the meter, the re-measured density value, the target density value, the target amount of added clean water, the single added metering, and the cumulative added metering; Mode switching module, used to select manual or automatic adjustment of operation status module and equipment parameter module; The log recording module is used to query historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data, to achieve the purpose of visualization, adjustment, availability, and controllability.

[0051] In order to achieve the above-mentioned purpose, the present invention also provides a zero-discharge method for homogenizing waste slurry from a mixing station.

[0052] like Figures 1 to 7 As shown, the present invention provides a method for homogenizing waste slurry from a mixing station with zero discharge, comprising the following steps: S1. The stirring motor I12 in the raw pulp stirring tank / tank 1 is started, and the stirring impeller I14 is driven to rotate through the stirring shaft I13 to stir the waste pulp in the tank / tank body I11; the liquid level meter I17 monitors the liquid level of the waste pulp in the raw pulp stirring tank / tank 1. When the liquid level reaches the set value, the water pump I15 is started to transport the waste pulp through the pipeline I16 to the inlet of the mixer 43 of the waste pulp homogenizer 4; the water pump II22 in the clean water tank / tank 2 is started to pump the clean water in the tank / tank body II21 to the inlet of the mixer 43 of the waste pulp homogenizer 4 through the pipeline II23; the water pump III32 in the homogenizer tank / tank 3 is started to pump the homogenizer in the tank / tank body III31 to the inlet of the mixer 43 of the waste pulp homogenizer 4 through the pipeline III33; S2. The electric control cabinet 45 in the waste slurry homogenizer 4 controls the mixer 43 to start, and the sewage, clean water and homogenizing agent are fully mixed in the mixer 43 to form homogenized waste slurry water; the sensor 47 on the top of the metering hopper 46 monitors and records the weight of the waste slurry water in real time; the mixed waste slurry water enters the finished product pool / tank 5 through the metering hopper 46; S3. The stirring motor II52 in the finished product tank / tank 5 is started, and the stirring impeller II54 is driven to rotate via the stirring shaft II53 to stir the homogenized waste water in the tank / tank body V51 to prevent sedimentation. The liquid level meter II59 monitors the liquid level of the waste water in the finished product tank / tank 5. The water pump IV55 is started to transport the homogenized waste water to the finished product tank / tank 5 through the pipeline IV56. The water pump V57 is started to transport the waste water back to the mixing station through the pipeline V58. S4. Each time after the waste slurry water is prepared, water is pumped from the clean water tank / tank 2 to clean the waste slurry homogenizer 4 to ensure the accuracy of each test value. A pneumatic butterfly valve 44 is installed under the waste slurry homogenizer 4, the raw slurry mixing tank / tank 1 and the finished product tank / tank 5 to discharge the water into the sewage tank generated by the wet concrete separator and the finished product tank / tank 5 through the pipeline.

[0053] In order to achieve the above-mentioned purpose, the present invention also provides a zero-discharge method for homogenizing waste slurry from a mixing station.

[0054] like Figure 8 As shown, the present invention provides a method for homogenizing waste slurry from a mixing station with zero discharge, comprising the following steps: The liquid level detection module detects the liquid level height in the raw pulp mixing tank / tank 1 and the finished product tank / tank 5 in real time, compares the detected liquid level data with the preset lower and upper limits, and determines whether the liquid level reaches the conditions that need to be processed; The operation status module continuously monitors the operation status of the water pumps in the raw pulp mixing tank / tank 1, the clear water tank / tank 2, the homogenizer tank / tank 3, and the finished product tank / tank 5 to detect whether the water pumps are operating normally and whether any faults occur. If a fault is detected, the operation status module will issue an alarm and record the fault information. The equipment parameter module obtains the detection values of the meter in the waste slurry homogenizer 4 in real time, including the real-time weight of the metering scale, the density value of the metering scale, the re-measured density value, the target density value, the target amount of clean water added, the single additional metering, and the cumulative additional metering; based on the equipment parameter data, the feed and discharge amounts of each pool / tank are automatically or manually adjusted to ensure that the waste slurry homogenization process meets the preset targets; The log recording module continuously records the system's historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data.

[0055] Although the present invention has been described in detail with reference to the accompanying drawings and in conjunction with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who can easily conceive of changes or substitutions within the technical scope disclosed in the present invention shall be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A mixing station waste slurry homogenization zero-discharge system, characterized by: The invention comprises a vertical waste pulp homogenizer (4), which is installed on the top of a raw pulp stirring tank / tank (1) and a finished product tank / tank (5) to achieve zero discharge of waste pulp; the inlet of the waste pulp homogenizer (4) is respectively connected to the raw pulp stirring tank / tank (1), the clear water tank / tank (2) and the homogenizer tank / tank (3), and the outlet of the waste pulp homogenizer (4) is connected to the finished product tank / tank (5), wherein: The waste pulp homogenizer (4) comprises a rectangular pool / tank body IV (41), a mixer (43) is provided on one side of the pool / tank body IV (41), the inlet of the mixer (43) is connected to the raw pulp stirring pool / tank (1), the clean water pool / tank (2) and the homogenizer pool / tank (3) through pipelines, and a flow meter (42) is provided on the pipeline; the outlet of the mixer (43) is connected to the finished product pool / tank (5) through a metering hopper (46), and a plurality of groups of sensors (47) are provided on the top of the metering hopper (46); an electric control cabinet (45) is provided in the waste pulp homogenizer (4), and the electric control cabinet (45) controls the mixer (43) to draw in sewage, clean water and homogenizer in a certain proportion for mixing, and controls the pneumatic butterfly valve (44) to transport the homogenized waste pulp water to the finished product pool / tank (5) in a certain metering manner.

2. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: The raw pulp stirring tank / tank (1) comprises a circular tank / tank body I (11), a stirring motor I (12) is installed on the top of the tank / tank body I (11), and the stirring motor I (12) is connected to a stirring impeller I (14) via a stirring shaft I (13); the stirring impeller I (14) drives the waste pulp in the tank / tank body I (11) to stir; the bottom of the tank / tank body I (11) transports the waste pulp to the pipeline I (16) via a water pump I (15); and a liquid level gauge I (17) is also installed on the side of the tank / tank body I (11).

3. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: The clean water tank / tank (2) comprises a tank / tank body II (21), a water pump II (22) and a pipeline II (23). Clean water is contained in the tank / tank body II (21). The water pump II (22) pumps the clean water from the bottom of the tank / tank body II (21) through the pipeline II (23) to the waste slurry homogenizer (4).

4. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: The homogenizing agent pool / tank (3) comprises a pool / tank body III (31), a water pump III (32) and a pipeline III (33). The pool / tank body III (31) contains the homogenizing agent, and the water pump III (32) pumps the homogenizing agent from the bottom of the pool / tank body III (31) through the pipeline III (33) to the waste slurry homogenizer (4).

5. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: The finished product pool / tank (5) comprises a pool / tank body V (51) of rectangular shape, a stirring motor II (52) is installed on the top of the pool / tank body V (51), and the stirring motor II (52) is connected to the stirring impeller II (54) through the stirring shaft II (53); the stirring impeller II (54) drives the homogenized waste slurry water in the pool / tank body V (51) to stir; a water pump IV (55) and a water pump V (57) are provided at the bottom of the pool / tank body V (51), the water pump IV (55) is connected to the outlet of the pneumatic butterfly valve (44) through the pipeline IV (56), and is used to transport the homogenized waste slurry water to the pool / tank body V (51); the water pump V (57) transports the waste slurry water back to the mixing station through the pipeline V (58); and a liquid level meter II (59) is also installed on the side of the pool / tank body V (51).

6. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: A pneumatic butterfly valve (44) is provided below the raw pulp stirring tank / tank (1), the waste pulp homogenizer (4) and the finished product tank / tank (5). The pneumatic butterfly valve (44) is connected to the air compressor (6) to discharge the sewage into the conical tank in the sand and gravel separation system. The fine sand is extracted by the slurry pump and the cyclone, and the sewage is further circulated.

7. The mixing station waste slurry homogenization zero-discharge system according to claim 1, characterized in that: The measuring hopper (46) is arranged in a cone shape, and three groups of weighing sensors (47) are arranged on its periphery; the periphery of the measuring hopper (46) is fixed in the pool / tank body IV (41) through a bracket.

8. A mixing station waste slurry homogenization zero-discharge platform, using the mixing station waste slurry homogenization zero-discharge system according to any one of claims 1 to 7, characterized in that: The platform includes the following modules: A liquid level detection module is used to detect the liquid level height in the raw pulp stirring tank / tank (1) and the finished product tank / tank (5) to determine whether the lower limit or the upper limit has been reached; An operating status module is used to detect the operating status of the water pumps in the raw pulp stirring tank / tank (1), the clean water tank / tank (2), the homogenizer tank / tank (3) and the finished product tank / tank (5) to determine whether a fault occurs; An equipment parameter module is used to detect the values detected by the meter in the waste pulp homogenizer (4), including the real-time weight of the meter, the density value of the meter, the re-measured density value, the target density value, the target amount of added clean water, the single added metering, and the cumulative added metering; Mode switching module, used to select manual or automatic adjustment of operation status module and equipment parameter module; The log recording module is used to query historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data, to achieve the purpose of visualization, adjustment, availability, and controllability.

9. A method for homogenizing and discharging waste slurry from a mixing station, using the system for homogenizing and discharging waste slurry from a mixing station as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1. The stirring motor I (12) in the raw pulp stirring tank / tank (1) is started, and the stirring impeller I (14) is driven to rotate through the stirring shaft I (13), stirring the waste pulp in the tank / tank body I (11); the level meter I (17) monitors the liquid level of the waste pulp in the raw pulp stirring tank / tank (1). When the liquid level reaches the set value, the water pump I (15) is started to transport the waste pulp through the pipeline I (16) to the waste pulp homogenizer (4). The mixer (43) inlet is connected to the mixer (43); the water pump II (22) in the clean water tank / tank (2) is started to pump the clean water in the tank / tank body II (21) to the mixer (43) inlet of the waste slurry homogenizer (4) through the pipeline II (23); the water pump III (32) in the homogenizer tank / tank (3) is started to pump the homogenizer in the tank / tank body III (31) to the mixer (43) inlet of the waste slurry homogenizer (4) through the pipeline III (33); S2, the electric control cabinet (45) in the waste slurry homogenizer (4) controls the mixer (43) to start, and the sewage, clean water and homogenizing agent are fully mixed in the mixer (43) to form homogenized waste slurry water; the sensor (47) on the top of the metering hopper (46) monitors and records the weight of the waste slurry water in real time; the mixed waste slurry water enters the finished product pool / tank (5) through the metering hopper (46); S3, the stirring motor II (52) in the finished product tank / tank (5) is started, and the stirring impeller II (54) is driven to rotate through the stirring shaft II (53), stirring the homogenized waste water in the tank / tank body V (51) to prevent sedimentation; the liquid level meter II (59) monitors the liquid level of the waste water in the finished product tank / tank (5); the water pump IV (55) is started, and the homogenized waste water is transported to the finished product tank / tank (5) through the pipeline IV (56); the water pump V (57) is started, and the waste water is transported back to the mixing station through the pipeline V (58); S4. After each mixing of the waste slurry water, water is pumped from the clean water tank / tank (2) to clean the waste slurry homogenizer (4) to ensure the accuracy of each test value. A pneumatic butterfly valve (44) is installed below the waste slurry homogenizer (4), the raw slurry mixing tank / tank (1) and the finished product tank / tank (5). The water is discharged into the sewage tank generated by the wet concrete separator and the finished product tank / tank (5) through the pipeline.

10. A method for homogenizing and discharging waste slurry from a mixing station, using the zero-discharge platform for homogenizing and discharging waste slurry from a mixing station as claimed in claim 8, characterized in that: The steps include: The liquid level detection module detects the liquid level height in the raw pulp stirring tank / tank (1) and the finished product tank / tank (5) in real time, compares the detected liquid level data with the preset lower and upper limits, and determines whether the liquid level reaches the condition requiring treatment; The operation status module continuously monitors the operation status of the water pumps in the raw pulp mixing tank / tank (1), the clean water tank / tank (2), the homogenizer tank / tank (3) and the finished product tank / tank (5), and detects whether the water pumps are operating normally and whether any faults occur; if a fault is detected, the operation status module issues an alarm and records the fault information; The equipment parameter module obtains the detection values of the meter in the waste slurry homogenizer (4) in real time, including the real-time weight of the metering scale, the density value of the metering scale, the re-measured density value, the target density value, the target amount of clean water added, the single external metering, and the cumulative external metering; according to the equipment parameter data, the feed and discharge amounts of each pool / tank are automatically or manually adjusted to ensure that the waste slurry homogenization process meets the preset target; The log recording module continuously records the system's historical data, including liquid level detection data, operating status data, equipment parameter data, and mode switching data.

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