Sludge transformation device for saline-alkali soil improvement green planting

Abstract

The utility model discloses a sludge modification device for saline-alkali soil improvement and green planting, which relates to the technical field of saline-alkali soil improvement and green planting and comprises a feeding part, a mixing part, a chemical adding part and a microbial culture part, and the chemical adding part is used for adding chemical modifiers into a stirring tank. Sludge is conveyed into the stirring tank through the arranged feeding part, the mixing part and the chemical adding part are controlled to be started, a chemical modifier is added while the sludge in the stirring tank is stirred, the pH value of the sludge is adjusted, the salinity and alkalinity are reduced, the soil structure is improved, the soil fertility is improved, and the air permeability and the water-retaining property of the soil are enhanced; then, an attached growth space is provided for microorganisms through the arranged microorganism culture part, and the temperature in the stirring tank is adjusted through the heating cylinder, so that growth and metabolism of the microorganisms are promoted; the technical problems that an existing sludge transformation device for saline-alkali soil improvement and green planting is single in sludge treatment mode and lacks microbial culture and reaction environments are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of saline-alkali land improvement and greening planting, in particular to a sludge transformation device for saline-alkali land improvement and greening planting. Background Art

[0002] In the process of improving saline-alkali land for greening and planting, it is of great significance to transform sludge to improve its effect in saline-alkali land improvement. However, the existing sludge transformation devices for improving saline-alkali land for greening and planting generally have the following significant problems:

[0003] Single and incomplete treatment methods: Most existing devices only focus on the physical treatment of sludge, such as simple filtration and dehydration, while ignoring the comprehensive improvement at the chemical and biological levels. This results in the failure to effectively remove harmful substances in the sludge, and the adjustment of its nutrient content is not precise enough to meet the complex improvement needs of saline-alkali land.

[0004] Insufficient utilization of microorganisms: There is insufficient understanding and application of the role of microorganisms in sludge improvement. Existing devices often lack specially designed microbial culture and reaction environments, or the microbial flora used is not rich and targeted enough to fully utilize the potential of microorganisms to decompose organic matter, reduce the content of harmful substances and improve soil structure.

[0005] In view of this, the present invention is proposed to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a sludge transformation device for improving saline-alkali land for greening and planting, so as to solve the technical problems of the sludge transformation device for improving saline-alkali land for greening and planting in the prior art, that the sludge treatment method is single and there is a lack of microbial culture and reaction environment.

[0007] The technical solution of the utility model is: a sludge transformation device for improving saline-alkali land and greening planting, comprising:

[0008] The feeding part is arranged upwardly from left to right, the upper end of the feeding part is the discharging end, a stirring tank is arranged below the discharging end of the feeding part, a discharging port is arranged at the bottom of the stirring tank, and a control valve is arranged at the discharging port;

[0009] A mixing section, the mixing section is arranged in the stirring tank;

[0010] A chemical adding part, which is arranged above the stirring tank and is used to add a chemical improver to the inside of the stirring tank. The chemical adding part comprises a liquid storage tank arranged on the outer wall of the stirring tank, a liquid outlet pipe is arranged on the liquid storage tank, and a plurality of nozzles are evenly arranged on the upper edge of the stirring tank. The plurality of nozzles are connected to the liquid outlet pipe through a connecting pipe, and a metering pump is connected to the liquid outlet pipe;

[0011] The microorganism culture part is arranged in the stirring tank, and the microorganism culture part comprises an aeration plate arranged at the bottom of the stirring tank and a heating cylinder arranged on the inner wall of the stirring tank.

[0012] Further, the mixing part includes a stirring shaft vertically rotatably arranged in the stirring tank;

[0013] At least one stirring blade is arranged at the lower end of the stirring shaft along its length direction;

[0014] The outer wall of the stirring tank is provided with a driving motor;

[0015] The output shaft of the driving motor and the upper end of the stirring shaft are both sleeved with driving parts, a transmission part is arranged between the two driving parts, and the transmission part is sleeved on the two driving parts.

[0016] Furthermore, the bottom of the stirring tank is a funnel-shaped structure, the aeration plate is arranged in close contact with the funnel-shaped structure, and a plurality of aeration holes are evenly arranged on the aeration plate.

[0017] Furthermore, a biofilm carrier is also arranged at the bottom of the stirring tank.

[0018] Furthermore, a feed hopper is provided below the discharge end of the feed section;

[0019] A grid is arranged in the feed hopper, and the feed hopper is arranged on the mixing tank through a fixed clamp ring.

[0020] Furthermore, a delivery pipe is arranged above the stirring tank, and a discharge port of the delivery pipe is arranged toward the inside of the stirring tank;

[0021] The feed inlet of the conveying pipe is connected with a pump body, and the liquid inlet of the pump body is connected with a nutrient tank.

[0022] Furthermore, the feeding part is a skirt conveyor belt, and the skirt conveyor belt is set on the ground through a fixed bracket.

[0023] By adopting the above technical solution, the utility model has the following beneficial effects:

[0024] The sludge is transported to the mixing tank through the provided feeding section, the mixing section and the chemical adding section are controlled to start, and the chemical improver is added while the sludge in the mixing tank is stirred to adjust the pH value of the sludge, reduce the salinity, improve the soil structure, increase the soil fertility, and enhance the air permeability and water retention of the soil to make it more suitable for saline-alkali land improvement and plant growth. Then, the provided microbial cultivation section provides a space for the microorganisms to attach and grow, and the temperature in the mixing tank is adjusted by the heating cylinder to promote the growth and metabolism of microorganisms, decompose organic matter, and reduce the content of harmful substances in the sludge, thereby solving the technical problems of the existing sludge transformation devices for saline-alkali land improvement and greening planting, such as the single sludge treatment method and the lack of microbial cultivation and reaction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0026] Figure 1 A schematic diagram of the structure of a sludge transformation device for improving greening and planting saline-alkali land provided in this embodiment of the present application;

[0027] Figure 2 for Figure 1 A schematic structural diagram of another perspective of a sludge transformation device for improving greening and planting saline-alkali land provided;

[0028] Figure 3 A schematic diagram of the structure of the sludge transformation device for improving greening and planting saline-alkali land provided in an embodiment of the present application, with the feed part removed;

[0029] Figure 4 for Figure 3 Structural cross-sectional view of

[0030] Figure 5 A schematic diagram of the structure of the stirring blade and the aeration disk of the sludge transformation device for improving greening and planting saline-alkali land provided in an embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the structure of the chemical addition part of the sludge transformation device for improving saline-alkali land and greening planting provided in an embodiment of the present application.

[0032] Figure numerals: 1. Feeding part; 2. Stirring tank; 3. Feeding hopper; 4. Mixing part; 5. Chemical adding part; 6. Fixed bracket; 7. Fixed clamp; 8. Heating cylinder; 9. Delivery pipe; 10. Aeration plate; 41. Stirring shaft; 42. Driving part; 43. Driving motor; 44. Transmission part; 45. Stirring blade; 51. Liquid storage tank; 52. Mounting seat; 53. Liquid outlet pipe; 54. Metering pump; 55. Nozzle; 56. Connecting pipe; 57. Mounting plate.

[0033] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] The specific implementation modes of the present utility model are further described in detail with reference to the accompanying drawings.

[0035] See also Figures 1 to 6 As shown, the embodiment of the present application provides a sludge transformation device for improving greening planting in saline-alkali land, including: a feeding part 1, a mixing part 4, a chemical adding part 5 and a microbial culture part, the feeding part 1 is arranged upwardly from left to right, the upper end of the feeding part 1 is the discharging end, a stirring tank 2 is arranged below the discharging end of the feeding part 1, the bottom of the stirring tank 2 has a discharge port, a control valve is arranged at the discharge port, the mixing part 4 is arranged in the stirring tank 2, the chemical adding part 5 is arranged above the stirring tank 2, the chemical adding part 5 is used to add a chemical improver to the inside of the stirring tank 2, and the chemical adding part 5 includes a liquid storage arranged on the outer wall of the stirring tank 2 Tank 51, the liquid storage tank 51 is fixedly mounted on the outer wall of the stirring tank 2 through a mounting seat 52, a liquid outlet pipe 53 is arranged on the liquid storage tank 51, a plurality of nozzles 55 are evenly arranged on the upper edge of the stirring tank 2, the plurality of nozzles 55 are connected to the liquid outlet pipe 53 through a connecting pipe 56, a metering pump 54 is connected to the liquid outlet pipe 53, the metering pump 54 is electrically connected to an external power supply, each nozzle 55 is fixed to the upper edge of the stirring tank 2 through a mounting plate 57, a microorganism culture part is arranged in the stirring tank 2, and the microorganism culture part includes an aeration plate 10 arranged at the bottom of the stirring tank 2 and a heating cylinder 8 arranged on the inner wall of the stirring tank 2.

[0036] It should be noted that after the sludge treatment is completed, the control valve is opened to discharge the sludge; chemical improvers include calcium sulfate, sulfur, humic acid substances, citric acid or oxalic acid and phosphoric acid compounds. Calcium sulfate replaces sodium ions in the sludge by calcium ions, reduces the alkalinity of the sludge, improves the physical properties of the sludge, and increases the permeability of the sludge; sulfur can be oxidized in the sludge to form sulfuric acid, reduces the pH value of the sludge, and improves the pH value of the saline-alkali land; humic acid substances can increase the cation exchange capacity of the sludge, increase the fertilizer retention capacity of the sludge, improve the soil structure, and enhance the activity of soil microorganisms; citric acid or oxalic acid forms complexes with metal ions in the sludge, reduces the toxicity of metal ions to plants, and reduces the salinity of the soil; phosphoric acid compounds can improve the phosphorus nutrition status of the soil, enhance the stress resistance of plants, and have a certain regulatory effect on the chemical properties of saline-alkali land. The main function of this chemical amendment is to regulate the pH of the soil, reduce salinity, improve soil structure, increase soil fertility, and enhance soil permeability and water retention, thereby creating a more favorable soil environment for plant growth, promoting the improvement of saline-alkali land and greening planting, and can be selected and adjusted according to the specific properties of different saline-alkali lands and sludge characteristics, so as to adjust the soil environment in a targeted manner.

[0037] When adjusting the pH value of the sludge, firstly, the composition of the chemical improver is adjusted according to the characteristics of the sludge and loaded into the liquid storage tank 51, and then the metering pump 54 is controlled to start so that the metering pump 54 pumps out the chemical improver in the liquid storage tank 51, and the chemical improver is evenly sprayed into the sludge in the mixing tank 2 through the liquid outlet pipe 53, multiple connecting pipes 56 and multiple nozzles 55. As the sludge is stirred, the chemical improver is evenly mixed with the sludge.

[0038] The heating cylinder 8 is used to stabilize the temperature in the stirring tank 2 within a range suitable for the growth and activity of microorganisms, usually 25-35° C. The specific temperature can be determined according to the characteristics of the selected microbial flora.

[0039] In the above scheme, the sludge is transported to the stirring tank 2 through the set feeding part 1, the mixing part 4 and the chemical adding part 5 are controlled to start, and the chemical improver is added while the sludge in the stirring tank 2 is stirred to adjust the pH of the sludge, reduce the salinity, improve the soil structure, increase the soil fertility, and enhance the air permeability and water retention of the soil, so as to make it more suitable for saline-alkali land improvement and plant growth. Then, the set microbial culture part is used to provide a space for the microorganisms to attach and grow, and the temperature in the stirring tank 2 is adjusted by the heating cylinder 8 to promote the growth and metabolism of microorganisms, decompose organic matter, and reduce the content of harmful substances in the sludge, thereby solving the technical problems of the existing sludge transformation device for saline-alkali land improvement and greening planting, which has a single sludge treatment method and lacks a microbial culture and reaction environment.

[0040] In some possible implementations, see Figures 3 to 5 As shown, the mixing part 4 includes a stirring shaft 41 vertically rotatably arranged in the stirring tank 2, and at least one stirring blade 45 is arranged at the lower end of the stirring shaft 41 along its length direction. A driving motor 43 is arranged on the outer wall of the stirring tank 2, and the driving motor 43 is electrically connected to an external power supply. The output shaft of the driving motor 43 and the upper end of the stirring shaft 41 are both sleeved with a driving member 42, and a transmission member 44 is arranged between the two driving members 42. The transmission member 44 is sleeved on the two driving members 42. The upper and lower ends of the stirring shaft 41 are rotatably installed in the stirring tank 2 through a mounting rod. The driving member 42 can be a sprocket or a pulley, and the transmission member 44 can be a chain or a belt. When the driving member 42 is a sprocket, the transmission member 44 is a chain, and the driving member 42 is meshed with the transmission member 44. When the driving member 42 is a pulley, the transmission member 44 is a belt, and the driving member 42 and the transmission member 44 are frictionally matched.

[0041] In the above scheme, when the sludge is stirred, the driving motor 43 is controlled to start, and the driving motor 43 starts to drive its output shaft to rotate, and through the cooperation of the driving member 42 and the transmission member 44, the stirring shaft 41 is driven to rotate, and the rotation of the stirring shaft 41 drives the stirring blades 45 to rotate, thereby uniformly stirring the sludge in the stirring tank 2.

[0042] In some possible implementations, see Figure 4 and Figure 5 As shown, the bottom of the stirring tank 2 is a funnel-shaped structure, and the aeration plate 10 is arranged in close contact with the funnel-shaped structure. The aeration plate 10 is evenly provided with a plurality of aeration holes.

[0043] In the above scheme, the aeration plate 10 is connected to the gas supply system, and the gas (compressed air) is transported into the aeration plate 10 through the air supply pipe, and the air is evenly released into the sludge through the aeration holes. When the air enters the sludge, bubbles are formed. These bubbles diffuse in the sludge, increasing the contact area between oxygen and sludge, providing the necessary conditions for the survival and reproduction of microorganisms.

[0044] In some possible embodiments, a biofilm carrier (not shown in the figure) is also provided at the bottom of the stirring tank 2. The biofilm carrier provides a large number of attachment sites for the microorganisms, so that the microorganisms can grow, reproduce and aggregate on it to form a dense and stable biofilm, which helps to increase the number of microorganisms per unit volume, thereby enhancing the ability of the microorganisms to decompose and transform organic matter and harmful substances in the sludge, creating a relatively stable environment for the microorganisms, reducing the impact of harmful substances in the sludge on the microorganisms, and improving the survival rate and activity of the microorganisms. The microorganisms are aerobic microorganisms, and the biofilm carrier is composed of polyethylene or polypropylene and has a high specific surface area and a porous structure to provide a large number of attachment sites for the growth of microorganisms.

[0045] In some possible implementations, see Figures 1 to 4 As shown, a feed hopper 3 is provided below the discharge end of the feed part 1, a grid is provided inside the feed hopper 3, and the feed hopper 3 is provided on the mixing tank 2 through a fixed clamp ring 7. The sludge entering the mixing tank 2 is filtered through the provided feed hopper 3 to prevent large impurities in the sludge from entering the mixing tank 2.

[0046] In some possible implementations, see Figures 1 to 3 As shown, a delivery pipe 9 is arranged above the stirring tank 2, the discharge port of the delivery pipe 9 is arranged toward the stirring tank 2, the feed port of the delivery pipe 9 is connected to a pump body (not shown in the figure), and the liquid inlet of the pump body is connected to a nutrient tank (not shown in the figure).

[0047] In the above scheme, the nutrient tank contains nutrients, including nitrogen sources, phosphorus sources, potassium sources, trace elements, organic matter and growth regulators. Nitrogen sources such as urea, ammonium chloride, ammonium nitrate, etc. provide nitrogen elements for plant growth and promote stem and leaf growth; phosphorus sources such as potassium dihydrogen phosphate, superphosphate, etc. are helpful for plant root development, flower bud differentiation and seed maturation; potassium sources such as potassium chloride, potassium sulfate, etc. are used to enhance the plant's resistance to lodging, disease and pests, and improve the quality of the plant; trace elements such as iron, manganese, zinc, copper, boron, molybdenum, etc. are used to improve the quality of the plant. These trace elements play an important regulatory role in the growth, development and physiological metabolism of plants; organic substances such as humus, amino acids, fulvic acid, etc., they can improve soil structure, increase soil fertility, and enhance the soil's ability to retain water and fertilizer; growth regulators such as auxin, gibberellin, cytokinin, etc., can be added in appropriate amounts to regulate the growth and development of plants. When allocating nutrients, they can be adjusted according to the nature of the sludge, the conditions of the saline-alkali land and the needs of the plants being grown.

[0048] In some possible implementations, see Figure 1 and Figure 2 As shown, the feed part 1 is a skirt conveyor belt, which is set on the ground through a fixed bracket 6. A plurality of blocks are evenly arranged on the surface of the skirt conveyor belt along its width direction. The blocks and the outer edge of the skirt conveyor belt form a protective cavity to reduce the possibility of sludge falling during transportation.

[0049] This specific embodiment is merely an explanation of the utility model, and it is not a limitation of the utility model. After reading this specification, those skilled in the art can make non-creative modifications to the embodiment as needed, but as long as it is within the protection scope of the utility model, it is protected by the patent law.

Claims

1. A sludge transformation device for improving saline-alkali land and greening planting, characterized in that: include: A feeding part (1), the feeding part (1) is arranged upwardly and tilted from left to right, the upper end of the feeding part (1) is a discharge end, a stirring tank (2) is arranged below the discharge end of the feeding part (1), the bottom of the stirring tank (2) has a discharge port, and a control valve is arranged at the discharge port; A mixing section (4), the mixing section (4) being arranged in the stirring tank (2); A chemical addition unit (5), the chemical addition unit (5) being arranged above the stirring tank (2), the chemical addition unit (5) being used for adding a chemical improver into the stirring tank (2), the chemical addition unit (5) comprising a liquid storage tank (51) arranged on the outer wall of the stirring tank (2), the liquid storage tank (51) being provided with a liquid outlet pipe (53), a plurality of nozzles (55) being evenly arranged on the upper edge of the stirring tank (2), the plurality of nozzles (55) being connected to the liquid outlet pipe (53) via a connecting pipe (56), and a metering pump (54) being connected to the liquid outlet pipe (53); A microorganism culture section, the microorganism culture section is arranged in the stirring tank (2), and the microorganism culture section comprises an aeration plate (10) arranged at the bottom of the stirring tank (2) and a heating cylinder (8) arranged on the inner wall of the stirring tank (2).

2. The sludge transformation device for improving greening and planting saline-alkali land according to claim 1 is characterized in that: The mixing part (4) comprises a stirring shaft (41) which is vertically rotatably arranged in the stirring tank (2); At least one stirring blade (45) is disposed at the lower end of the stirring shaft (41) along its length direction; The outer wall of the stirring tank (2) is provided with a driving motor (43); The output shaft of the driving motor (43) and the upper end of the stirring shaft (41) are both sleeved with a driving member (42), a transmission member (44) is provided between the two driving members (42), and the transmission member (44) is sleeved on the two driving members (42).

3. The sludge transformation device for improving greening and planting saline-alkali land according to claim 2 is characterized in that: The inner bottom of the stirring tank (2) is a funnel-shaped structure, the aeration plate (10) is arranged in close contact with the funnel-shaped structure, and a plurality of aeration holes are evenly arranged on the aeration plate (10).

4. The sludge transformation device for improving greening and planting saline-alkali land according to claim 3 is characterized in that: A biofilm carrier is also provided at the bottom of the stirring tank (2).

5. The sludge transformation device for improving greening and planting saline-alkali land according to claim 4 is characterized in that: A feed hopper (3) is provided below the discharge end of the feed portion (1); A grid is provided inside the feed hopper (3), and the feed hopper (3) is arranged on the stirring tank (2) via a fixing clamp ring (7).

6. The sludge transformation device for improving greening and planting saline-alkali land according to claim 5 is characterized in that: A delivery pipe (9) is arranged above the stirring tank (2), and a discharge port of the delivery pipe (9) is arranged toward the inside of the stirring tank (2); The feed inlet of the delivery pipe (9) is connected to a pump body, and the liquid inlet of the pump body is connected to a nutrient tank.

7. The sludge transformation device for improving greening and planting saline-alkali land according to claim 6 is characterized in that: The feeding part (1) is a skirt conveyor belt, and the skirt conveyor belt is arranged on the ground through a fixed bracket (6).

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