Efficient waste slurry homogenization zero-discharge system of vertical mixing plant

Abstract

The utility model relates to the technical field of waste slurry treatment, in particular to an efficient waste slurry homogenization zero-discharge system of a vertical mixing plant. The device comprises a primary pulp stirring tank, a waste pulp homogenizer and a finished product tank, the waste pulp homogenizer is vertically mounted above the primary pulp stirring tank and the finished product tank, a clear water tank and a homogenizing agent tank are arranged on one side of the waste pulp homogenizer, the waste pulp homogenizer comprises a cuboid tank IV, and a mixer, a metering hopper and an electric control cabinet are arranged in the tank IV; a spraying head is arranged above the metering hopper, and a sensor for detecting the weight of the mixed waste slurry is arranged in the middle of the metering hopper. The space layout is optimized, the waste slurry homogenizer is arranged above the raw slurry stirring tank and the finished product tank, and the occupied area of the system is reduced by using the idle space; meanwhile, the inner structure of the waste slurry homogenizer is optimized, and a four-way structure mixer is added, so that the waste slurry is efficiently homogenized and recycled, zero emission is achieved, and the pollution of a mixing plant is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste slurry treatment technology, specifically to a high-efficiency homogenization and zero-emission system for waste slurry from a vertical mixing plant. Background Technology

[0002] In the context of rapid social development, resource conservation and environmental protection to achieve sustainable development have received widespread attention. Ready-mixed concrete, as a crucial component of social infrastructure construction, has experienced rapid growth. During this process, the reuse of sand and gravel and zero discharge of slurry wastewater have become goals pursued by production enterprises. However, wastewater treatment at mixing plants remains a significant challenge. While previous efforts by those skilled in the art have yielded results, such as the adjustable constant concentration wastewater recovery and utilization system for concrete mixing plants (Chinese Patent Publication No. CN205905188U), shortcomings remain. This solution employs a planar layout, resulting in a large equipment footprint and low space utilization; unreasonable mixing ratio control affects homogenization effect and efficiency; there is no monitoring or control of wastewater volume; and the lack of an intelligent monitoring module hinders comprehensive system monitoring and intelligent management, ultimately impeding zero wastewater discharge and environmental protection. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a high-efficiency homogenization and zero-emission system for waste slurry from a vertical mixing plant.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant includes a raw slurry mixing tank, a waste slurry homogenizer, and a finished product tank. The waste slurry homogenizer is vertically installed above the raw slurry mixing tank and the finished product tank. A clean water tank and a homogenizing agent tank are provided on one side of the waste slurry homogenizer.

[0006] The waste slurry homogenizer includes a rectangular tank IV, which contains a mixer and a metering hopper. The mixer has a four-way structure, with its three inlets connected to the raw slurry mixing tank, the clean water tank, and the homogenizing agent tank via pipelines, respectively, for pumping in waste slurry, clean water, and homogenizing agent. One outlet of the mixer is connected to the finished product tank via the metering hopper. A spray head is installed above the metering hopper, and a sensor for detecting the weight of the mixed waste slurry is installed in the middle of the metering hopper.

[0007] This technical solution optimizes the spatial layout by placing the waste slurry homogenizer, which needs to be connected to four other tanks, upwards and utilizing the unused space above the raw slurry mixing tank and the finished product tank, thus reducing the overall system footprint. The internal structure of the waste slurry homogenizer is optimized by adding a four-way mixer to achieve homogenization of the waste slurry. The homogenized waste slurry is then recycled, achieving zero emissions and reducing pollution at the mixing plant. The electrical control cabinet is connected to the raw slurry mixing tank, waste slurry homogenizer, finished product tank, clean water tank, and homogenizing agent tank.

[0008] In addition, the vertical mixing plant waste slurry high-efficiency homogenization and zero-emission system proposed above according to this utility model may also have the following additional technical features:

[0009] According to one embodiment of the present invention, the raw slurry mixing tank includes tank body I, and the finished product tank includes tank body V. Tank body I and tank body V are integrally formed and a partition is provided in the middle. A cover plate for installing tank body IV is provided above the partition.

[0010] This technical solution uses tank body I and tank body V, which are integrally machined and designed, to correspond to the two supporting parts below tank body I, making the entire system more compact.

[0011] According to one embodiment of the present invention, a level gauge I is also installed on the side of the tank body I, and a stirring motor I is installed on the cover plate of the tank body I. The stirring motor I is connected to the stirring impeller I through the stirring shaft I. The stirring impeller I drives the waste slurry in the tank body I to stir. The bottom of the tank body I is pumped to the pipeline I through the water pump I.

[0012] 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 tank I by bolts; the water pump I is installed at the bottom of the tank 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 pumped into the pipeline and transported out through the water pump; the level gauge I is installed on the side of the tank I by bolts, and its sensing probe extends into the tank I to monitor the liquid level.

[0013] According to one embodiment of the present invention, a level gauge II is installed on the side of the tank V; a stirring motor II is installed on the cover plate of the tank V, and the stirring motor II is connected to the stirring impeller II through the stirring shaft II; the stirring impeller II drives the homogenized waste slurry in the tank V to stir; a water pump IV and a water pump V are provided at the bottom of the tank V, and the water pump IV is connected to the outlet of the pneumatic butterfly valve through the pipeline IV, for conveying the homogenized waste slurry to the tank V; the water pump V conveys the waste slurry back to the mixing station through the pipeline V.

[0014] In this technical solution, the stirring motor II is fixed to the top of the tank V with bolts. 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, allowing the waste slurry to enter the pipeline IV smoothly. 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 back to the mixing station. The level gauge II is installed on the side of the tank V with bolts, and its sensing probe extends into the tank V to monitor the liquid level.

[0015] According to one embodiment of the present invention, the clean water tank includes a tank body II, a water pump II, and a pipeline II. The tank body II contains clean water, and the bottom of the tank body II supplies clean water to the pipeline II through the water pump II.

[0016] In this technical solution, water pump II is fixed to the bottom of tank II by a flange. The outlet of water pump II is tightly connected to one end of pipeline II. After being drawn out from water pump II, clean water can smoothly enter pipeline II. The other end of pipeline II is connected to waste slurry homogenizer to transport clean water to waste slurry homogenizer.

[0017] According to one embodiment of the present invention, the homogenizing agent tank includes a tank body III, a water pump III, and a pipeline III. The tank body III contains a homogenizing agent, and the homogenizing agent is pumped from the bottom of the tank body III to the pipeline III via the water pump III.

[0018] In this technical solution, water pump Ⅲ is fixed to the bottom of tank Ⅲ by a flange, and the inlet of water pump Ⅲ is connected to the inside of tank Ⅲ; the outlet of water pump Ⅲ is connected to one end of pipeline Ⅲ, so that the homogenizing agent can smoothly and sealedly enter pipeline Ⅲ after being drawn from water pump Ⅲ; the other end of pipeline Ⅲ is connected to waste slurry homogenizer, so as to transport the homogenizing agent to the waste slurry homogenizer to achieve the mixing of homogenizing agent and waste slurry.

[0019] According to one embodiment of the present invention, a pneumatic butterfly valve is provided below the raw slurry mixing tank, the waste slurry homogenizer, and the finished product tank, and the pneumatic butterfly valve is connected to an air compressor.

[0020] In this technical solution, the pneumatic butterfly valve is connected to the air compressor via an air pipe; the air compressor provides compressed air, which is transmitted to the pneumatic butterfly valve via 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 the top of the sewage tank.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] By optimizing the spatial layout, the waste slurry homogenizer is placed above the raw slurry mixing tank and the finished product tank, making use of idle space and reducing the system's footprint. At the same time, the internal structure of the waste slurry homogenizer is optimized by adding a four-way mixer to achieve efficient homogenization of waste slurry, enabling it to be recycled and reused, achieving zero emissions and reducing pollution at the mixing plant. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the system of this utility model.

[0024] Figure 2 This is a schematic diagram of the waste slurry homogenizer.

[0025] Figure 3 This is a structural diagram of the raw slurry mixing tank and the finished product tank.

[0026] Figure 4 This is a structural diagram of a water tank.

[0027] Figure 5 This is a schematic diagram of the homogenizing agent tank.

[0028] In the diagram: 1. Raw slurry mixing tank; 11. Tank body I; 12. Agitator motor I; 13. Agitator shaft I; 14. Agitator impeller I; 15. Water pump I; 16. Pipeline I; 17. Level gauge I; 2. Clean water tank; 21. Tank body II; 22. Water pump II; 23. Pipeline II; 3. Homogenizing agent tank; 31. Tank body III; 32. Water pump III; 33. Pipeline III; 4. Waste slurry homogenizer; 4 1. Tank IV; 42. Flow meter; 43. Mixer; 44. Pneumatic butterfly valve; 45. Electrical control cabinet; 46. Metering hopper; 47. Sensor; 5. Finished product tank; 51. Tank V; 52. Agitator motor II; 53. Agitator shaft II; 54. Agitator impeller II; 55. Water pump IV; 56. Pipeline IV; 57. Water pump V; 58. Pipeline V; 59. Level gauge II; 6. Air compressor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1 to 5 As shown, this embodiment provides a high-efficiency homogenization and zero-discharge system for waste slurry in a vertical mixing plant, including a raw slurry mixing tank 1, a waste slurry homogenizer 4, and a finished product tank 5. The waste slurry homogenizer 4 is vertically installed above the raw slurry mixing tank 1 and the finished product tank 5. A clean water tank 2 and a homogenizing agent tank 3 are provided on one side of the waste slurry homogenizer 4, wherein:

[0032] The waste slurry homogenizer 4 includes a rectangular tank IV 41, which houses a mixer 43, a metering hopper 46, and an electrical control cabinet 45. The mixer 43 has a four-way structure, with its three inlets connected to the raw slurry mixing tank 1, the clean water tank 2, and the homogenizing agent tank 3 via pipelines, for pumping in waste slurry, clean water, and homogenizing agent. One outlet of the mixer 43 is connected to the finished product tank 5 via the metering hopper 46. A spray head is installed above the metering hopper 46, and a sensor 47 for detecting the weight of the mixed waste slurry is installed in the middle of the metering hopper 46.

[0033] This technical solution optimizes the spatial layout by placing the waste slurry homogenizer 4, which needs to be connected to four other tanks, upwards and utilizing the unused space above the raw slurry mixing tank 1 and the finished product tank 5, thus reducing the overall system footprint. The internal structure of the waste slurry homogenizer 4 is optimized by adding a four-way mixer 43 to achieve waste slurry homogenization. The homogenized waste slurry is then recycled, achieving zero emissions and reducing pollution at the mixing plant. The electrical control cabinet 45 is connected to the raw slurry mixing tank 1, the waste slurry homogenizer 4, the finished product tank 5, the clean water tank 2, and the homogenizing agent tank 3.

[0034] In addition, the vertical mixing plant waste slurry high-efficiency homogenization and zero-emission system proposed above according to this utility model may also have the following additional technical features:

[0035] According to one embodiment of the present invention, the raw slurry mixing tank 1 includes a tank body I11, and the finished product tank 5 includes a tank body V51. The tank body I11 and the tank body V51 are integrally formed and a partition is provided in the middle. A cover plate for installing the tank body IV41 is provided above the partition.

[0036] This technical solution uses tank body I11 and tank body V51, which are integrally machined and designed, to correspond to the two supporting parts below tank body I11, making the entire system more compact.

[0037] According to one embodiment of the present invention, a level gauge I17 is also installed on the side of the tank body I11, and a stirring motor I12 is installed on the cover plate of the tank body I11. The stirring motor I12 is connected to the stirring impeller I14 through the stirring shaft I13. The stirring impeller I14 drives the waste slurry in the tank body I11 to stir. The bottom of the tank body I11 is pumped to the pipeline I16 through the water pump I15.

[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 tank I11 by bolts; the water pump I15 is installed at the bottom of the tank 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 pumped into the pipeline and transported out through the water pump; the level gauge I17 is installed on the side of the tank I11 by bolts, and its sensing probe extends into the tank I11 to monitor the liquid level.

[0039] According to one embodiment of the present invention, a level gauge II59 is installed on the side of the tank V51; a stirring motor II52 is installed on the cover plate of the tank 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 in the tank V51 to stir; a water pump IV55 and a water pump V57 are provided at the bottom of the tank 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 to the tank V51; the water pump V57 conveys the waste slurry back to the mixing station through the pipeline V58.

[0040] In this technical solution, the stirring motor II52 is fixed to the top of the tank V51 by bolts. 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, allowing the waste slurry to enter the pipeline IV56 smoothly. 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 to transport the homogenized waste slurry back to the mixing station. The level gauge II59 is installed on the side of the tank V51 by bolts, and its sensing probe extends into the tank V51 to monitor the liquid level.

[0041] According to one embodiment of the present invention, the clean water tank 2 includes a tank body II 21, a water pump II 22 and a pipeline II 23. The tank body II 21 contains clean water, and the bottom of the tank body II 21 is pumped with clean water to the pipeline II 23 through the water pump II 22.

[0042] In this technical solution, water pump II22 is fixed to the bottom of tank II21 by a flange. The outlet of water pump II22 is tightly connected to one end of pipeline II23. After being drawn out from water pump II22, clean water can smoothly enter pipeline II23. The other end of pipeline II23 is connected to waste slurry homogenizer 4 to transport clean water to waste slurry homogenizer 4.

[0043] According to one embodiment of the present invention, the homogenizing agent tank 3 includes a tank body Ⅲ31, a water pump Ⅲ32 and a pipeline Ⅲ33. The tank body Ⅲ31 contains a homogenizing agent, and the homogenizing agent is pumped from the bottom of the tank body Ⅲ31 to the pipeline Ⅲ33 via the water pump Ⅲ32.

[0044] In this technical solution, water pump Ⅲ32 is fixed to the bottom of tank Ⅲ31 by a flange, and the inlet of water pump Ⅲ32 is connected to the inside of tank Ⅲ31; the outlet of water pump Ⅲ32 is connected to one end of pipeline Ⅲ33, so that the homogenizing agent can smoothly and sealedly enter pipeline Ⅲ33 after being drawn from water pump Ⅲ32; the other end of pipeline Ⅲ33 is connected to waste slurry homogenizer 4, so as to transport the homogenizing agent to waste slurry homogenizer 4 to achieve the mixing of homogenizing agent and waste slurry.

[0045] According to one embodiment of the present invention, a pneumatic butterfly valve 44 is provided below the raw slurry mixing tank 1, the waste slurry homogenizer 4, and the finished product tank 5, and the pneumatic butterfly valve 44 is connected to the air compressor 6.

[0046] In this technical solution, the pneumatic butterfly valve 44 is connected to the air compressor 6 via an air pipe; the air compressor 6 provides compressed air, which is transmitted to the pneumatic butterfly valve 44 via 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 the top of the sewage tank.

[0047] The usage process of the above embodiments is as follows: Figures 1 to 5 As shown, the waste slurry in the raw slurry mixing tank 1 is stirred by the stirring impeller I14 driven by the stirring motor I12, and then pumped by the water pump I15 through the pipeline I16 to the mixer 43 of the waste slurry homogenizer 4 as needed; at the same time, the water pump II22 in the clean water tank 2 pumps clean water through the pipeline II23, and the water pump III32 in the homogenizer tank 3 pumps homogenizer through the pipeline III33, and pumps them into the mixer 43 in a certain proportion; the mixer 43 uses pressure to fully mix and homogenize the waste slurry, clean water, and homogenizer; the homogenized waste The slurry flows into the metering hopper 46, where sensor 47 detects its weight. Once the weight meets the standard, it flows into the finished product tank 5. Inside the finished product tank 5, stirring motor II 52 drives stirring impeller II 54 to ensure uniform slurry. When needed, water pump IV 55 transports the homogenized slurry back to the finished product tank 5 via pipeline IV 56, and water pump V 57 transports it back to the mixing station via pipeline V 58. Level gauges I 17 and II monitor the liquid levels in the raw slurry mixing tank 1 and the finished product tank 5 in real time to ensure stable system operation. The pneumatic butterfly valve 44 is controlled by air compressor 6 to open or close. In case of emergency or cleaning, the pneumatic butterfly valve 44 can be opened to discharge wastewater to the wastewater pool via the wastewater discharge pipeline. Spray heads clean the metering hopper 46 after metering for more accurate subsequent metering.

[0048] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant, characterized in that, It includes a raw slurry mixing tank (1), a waste slurry homogenizer (4), and a finished product tank (5). The waste slurry homogenizer (4) is vertically installed above the raw slurry mixing tank (1) and the finished product tank (5). A clean water tank (2) and a homogenizing agent tank (3) are provided on one side of the waste slurry homogenizer (4). The waste slurry homogenizer (4) includes a rectangular tank (41), which houses a mixer (43), a metering hopper (46), and an electrical control cabinet (45). The mixer (43) has a four-way structure, with its three inlets connected to the raw slurry mixing tank (1), the clean water tank (2), and the homogenizing agent tank (3) via pipelines, for pumping in waste slurry, clean water, and homogenizing agent. One outlet of the mixer (43) is connected to the finished product tank (5) via the metering hopper (46). A spray head is installed above the metering hopper (46), and a sensor (47) for detecting the weight of the mixed waste slurry is installed in the middle of the metering hopper (46).

2. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 1, characterized in that, The raw slurry mixing tank (1) includes tank body I (11), and the finished product tank (5) includes tank body V (51). Tank body I (11) and tank body V (51) are integrally formed and a partition is provided in the middle. A cover plate for installing tank body IV (41) is provided above the partition.

3. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 2, characterized in that, A level gauge I (17) is also installed on the side of the tank I (11). A stirring motor I (12) is installed on the cover plate of the tank I (11). The stirring motor I (12) is connected to the stirring impeller I (14) through the stirring shaft I (13). The stirring impeller I (14) drives the waste slurry in the tank I (11) to be stirred. The bottom of the tank I (11) is pumped to the pipeline I (16) through the water pump I (15).

4. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 2, characterized in that, A level gauge II (59) is installed on the side of the tank body V (51); an agitator motor II (52) is installed on the cover plate of the tank body V (51), and the agitator motor II (52) is connected to the agitator impeller II (54) through the agitator shaft II (53); the agitator impeller II (54) drives the homogenized waste slurry in the tank body V (51) to be agitated; a water pump IV (55) and a water pump V (57) are installed at the bottom of the tank body V (51), and the water pump IV (55) is connected to the outlet of the pneumatic butterfly valve (44) through the pipeline IV (56) to deliver the homogenized waste slurry to the tank body V (51); the water pump V (57) delivers the waste slurry back to the mixing station through the pipeline V (58).

5. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 1, characterized in that, The clean water tank (2) includes a tank body II (21), a water pump II (22) and a pipeline II (23). The tank body II (21) contains clean water, and the bottom of the tank body II (21) supplies clean water to the pipeline II (23) through the water pump II (22).

6. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 1, characterized in that, The homogenizer tank (3) includes a tank body (31), a water pump (32) and a pipeline (33). The tank body (31) contains the homogenizer, and the homogenizer is pumped from the bottom of the tank body (31) to the pipeline (33) via the water pump (32).

7. The high-efficiency homogenization and zero-discharge system for waste slurry from a vertical mixing plant as described in claim 1, characterized in that, A pneumatic butterfly valve (44) is installed below each of the raw slurry mixing tank (1), the waste slurry homogenizer (4), and the finished product tank (5), and the pneumatic butterfly valve (44) is connected to the air compressor (6).

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