A device for mixing shield muck and bio-organic fertilizer

Abstract

The utility model discloses a kind of shield muck and biological organic fertilizer mixing device, belong to shield muck and biological organic fertilizer processing field, including mounting bracket, the inside of mounting bracket is equipped with mixing bucket, the right side surface of mounting bracket is connected with swing driving part, the upper surface of mixing bucket is hinged with bucket cover, the upper surface of bucket cover is connected with handle, the left side surface of mounting bracket is connected with touch panel, the left side surface of mounting bracket is connected with general control switch, the back of mixing bucket is connected with temperature control element. Through the combination of electric heating disc and refrigerator in temperature control element, cooperate with the real-time monitoring of temperature sensor, realize accurate control to mixed temperature, effectively avoid shield muck and biological organic fertilizer appear burnt or stuffy yellow phenomenon, and stirring motor drives stirring frame to rotate, combined with swing driving part makes mixing bucket swing, form three-dimensional stirring mode, make shield muck and biological organic fertilizer realize all-around, multi-angle overturn in bucket, ensure that shield muck and biological organic fertilizer are evenly heated.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling slag and bio-organic fertilizer processing, specifically a device for mixing shield tunneling slag and bio-organic fertilizer. Background Technology

[0002] Shield tunneling excavated soil consists of soil and rock fragments generated during shield tunnel construction. It is characterized by high water content, high viscosity, and instability, requiring scientific treatment for resource utilization and environmental protection. Current disposal technologies for shield tunneling excavated soil mainly include: 1. Direct reuse technology, primarily used for filling roadbeds, foundations, dams, and landscaping; 2. Simple treatment and improvement technology, mainly using physical methods such as crushing, screening, grinding, dewatering, compounding, and improvement to alter the particle size distribution and moisture content of the excavated soil, making it reusable or used as raw material for solidification or sintering; 3. Solidification technology, mainly using cementing materials to aggregate soil from fragmented particles into a stable whole for use in engineering construction; 4. Firing technology, where excavated soil (mainly clay minerals) undergoes a series of physicochemical changes at high temperatures to form building materials.

[0003] When adopting improved technical solutions, it is necessary to first test the soil quality and internal composition of the waste soil. Then, the waste soil is mixed with specially formulated bio-organic fertilizer to improve its quality before it can be applied to planting soil. During the mixing process of waste soil and organic fertilizer, excessively high temperatures (usually referring to sustained temperatures exceeding 60°C) can cause a series of problems, affecting compost quality, microbial activity, and environmental safety. For example, microbial activity may be inhibited or even killed (although thermophilic bacteria can efficiently decompose organic matter at 50-60°C, their enzyme activity will significantly decrease when the temperature exceeds 65°C, even leading to protein denaturation, cell membrane rupture, and ultimately death). Other problems include nitrogen volatilization, nutrient loss and reduced fertilizer efficiency due to excessive mineralization of organic matter, and spontaneous combustion and fire hazards caused by the increase of malodorous gases.

[0004] The mixing of tunnel boring machine (TBM) slag and bio-organic fertilizer typically involves stirring. Existing mixing devices generally use motor-driven agitators to agitate the materials. However, when the moisture content of the TBM slag or bio-organic fertilizer exceeds 30%, the materials easily clump together, leading to uneven mixing and affecting the mixing quality. Furthermore, the poor temperature control during the stirring process results in uncontrollable material quality after mixing, impacting subsequent composting effectiveness. Therefore, those skilled in the art have provided a mixing device for TBM slag and bio-organic fertilizer to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to provide a device for mixing tunnel boring machine slag with biological organic fertilizer, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for mixing tunnel boring machine excavated soil with bio-organic fertilizer includes a mounting frame, a mixing tank inside the mounting frame, a swing drive connected to the right side of the mounting frame, a lid hinged to the upper surface of the mixing tank, a handle connected to the upper surface of the lid, a touch panel connected to the left side of the mounting frame, a master control switch connected to the left side of the mounting frame, a temperature control panel connected to the back of the mixing tank, and a stirring motor connected to the bottom of the mixing tank.

[0008] As a further improvement of this utility model: the bottom surface of the mounting bracket is connected to a movable support member, the bottom surface of the movable support member is connected to two support feet, and the bottom surface of each support foot is connected to two omnidirectional wheels.

[0009] As a further embodiment of this utility model: the swing drive includes a swing motor connected to the right side of the mounting frame, the output end of the swing motor passes through the mounting frame and extends into the interior of the mounting frame, the output end of the swing motor is connected to a drive shaft, the left side wall of the mounting frame is inlaid with a driven shaft, and the side of the driven shaft and the drive shaft that are close to each other are both connected to the mixing tank.

[0010] As a further embodiment of this utility model: the temperature control device includes a cooler connected to the back of the mixing tank, the output end of the cooler is connected to an output pump, the inner wall of the mixing tank is provided with a cooling groove, and the inner wall of the cooling groove is connected to a cooling pipe.

[0011] As a further embodiment of this utility model: the output end of the refrigeration unit passes through the mixing tank and extends into the interior of the cooling tank; the output end of the output pump passes through the mixing tank and extends into the interior of the cooling tank; one end of the refrigeration pipe is connected to the output pump; the other end of the refrigeration pipe is connected to the refrigeration unit; and an electric heating plate is connected to the inner bottom wall of the mixing tank.

[0012] As a further improvement of this utility model: a sealing shaft is embedded in the inner bottom wall of the mixing tank, and the output end of the stirring motor passes through the mixing tank and the sealing shaft in sequence and extends into the interior of the mixing tank.

[0013] As a further improvement of this utility model: the output end of the stirring motor is connected to a connecting rod, the outer surface of the connecting rod is connected to two stirring racks, and the inner wall of the mixing tank is connected to a temperature sensor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This mixing device for processing tunnel boring machine (TBM) excavated soil and bio-organic fertilizer features a movable support structure with casters, allowing for easy and flexible movement and positioning. It can quickly adapt to different working environments, greatly improving ease of use. The combination of an electric heating plate and a cooler in the temperature control unit, along with real-time monitoring by a temperature sensor, enables precise temperature control of the mixture, effectively preventing scorching or yellowing of the TBM excavated soil and bio-organic fertilizer. Furthermore, the mixing motor drives the mixing frame to rotate, and the swing drive causes the mixing drum to oscillate, creating a three-dimensional mixing mode. This allows the TBM excavated soil and bio-organic fertilizer to be turned over in all directions and at multiple angles within the drum, ensuring uniform heating. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a device for mixing tunnel slag and bio-organic fertilizer;

[0017] Figure 2 A rear-view three-dimensional structural diagram of a device for mixing tunnel slag and bio-organic fertilizer.

[0018] Figure 3 A top-view three-dimensional structural diagram of the electric heating plate in a device for mixing tunnel slag and bio-organic fertilizer.

[0019] Figure 4 This is a side cross-sectional view of the mixing tank in a device for mixing tunnel slag and bio-organic fertilizer.

[0020] In the diagram: 1. Mounting bracket; 2. Movable support; 201. Support foot; 202. Casters; 3. Touch panel; 4. Main control switch; 5. Mixing tank; 6. Temperature control unit; 601. Refrigerator; 602. Output pump; 603. Cooling tank; 604. Refrigeration pipe; 605. Electric heating plate; 7. Stirring motor; 701. Sealing shaft; 702. Connecting rod; 703. Stirring frame; 8. Swing drive; 801. Swing motor; 802. Drive shaft; 803. Driven shaft; 9. Tank lid; 10. Handle; 11. Temperature sensor. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-4In this embodiment of the invention, a device for mixing tunnel boring machine slag and bio-organic fertilizer includes a mounting frame 1. A mixing tank 5 is located inside the mounting frame 1. A swing drive 8 is connected to the right side of the mounting frame 1. A lid 9 is hinged to the upper surface of the mixing tank 5, and a handle 10 is connected to the upper surface of the lid 9. A touch panel 3 and a master control switch 4 are connected to the left side of the mounting frame 1. A temperature control 6 is connected to the back of the mixing tank 5, and a stirring motor 7 is connected to the bottom of the mixing tank 5. Appropriate parameters such as mixing temperature, stirring time, and swing amplitude are set via the touch panel 3. The device is then turned on via the master control switch 4, and simultaneously, the temperature control 6 starts working. An electric heating plate 605 heats the mixing tank 5, causing the temperature inside the tank to gradually rise. At this time, a temperature sensor 11 embedded in the inner wall of the mixing tank 5 monitors the temperature inside the tank in real time and transmits the data. According to the data transmitted to the touch panel 3, when the temperature inside the barrel reaches the preset upper limit, the cooler 601 is activated. The refrigerant in the cooler 601 enters the cooling pipe 604 in the cooling tank 603 through the output pump 602. The refrigerant circulates in the cooling pipe 604, absorbing the heat in the mixing barrel 5, thereby reducing the temperature inside the barrel. At the same time, the stirring motor 7 drives the connecting rod 702 and the two stirring frames 703 to rotate, stirring the shield tunneling slag and bio-organic fertilizer in the barrel, so that the shield tunneling slag and bio-organic fertilizer are heated evenly. In conjunction with the swing motor 801 in the swing drive component 8, the drive shaft 802 at its output end drives the mixing barrel 5 to swing around the driven shaft 803 at a certain angle, so that the shield tunneling slag and bio-organic fertilizer in the barrel can achieve more three-dimensional and more comprehensive turning during the stirring process, improving the stirring efficiency and quality consistency, and reducing the defect rate caused by uneven stirring.

[0024] The bottom surface of the mounting frame 1 is connected to a movable support 2. The bottom surface of the movable support 2 is connected to two support feet 201. Each support foot 201 has two casters 202 connected to its bottom surface. These casters 202 facilitate the movement of equipment by staff. The swing drive 8 includes a swing motor 801 connected to the right side of the mounting frame 1. The output end of the swing motor 801 passes through the mounting frame 1 and extends into its interior. The output end of the swing motor 801 is connected to a drive shaft 802. The mounting frame 1... A driven shaft 803 is embedded in the left side wall. The driven shaft 803 and the drive shaft 802 are both connected to the mixing tank 5 on their respective sides. The mixing tank 5 can be driven to swing by the swing motor 801. The temperature control control 6 includes a cooler 601 connected to the back of the mixing tank 5. The output end of the cooler 601 is connected to an output pump 602. A cooling groove 603 is opened in the inner wall of the mixing tank 5. A cooling pipe 604 is connected to the inner wall of the cooling groove 603. The mixing tank 5 can be cooled by the cooling pipe 604.

[0025] The output end of the cooler 601 passes through the mixing tank 5 and extends into the interior of the cooling tank 603. The output end of the output pump 602 passes through the mixing tank 5 and extends into the interior of the cooling tank 603. One end of the cooling pipe 604 is connected to the output pump 602, and the other end of the cooling pipe 604 is connected to the cooler 601. An electric heating plate 605 is connected to the inner bottom wall of the mixing tank 5. The electric heating plate 605 can heat the mixing tank 5. A sealing shaft 701 is embedded in the inner bottom wall of the mixing tank 5. The output end of the stirring motor 7 passes through the mixing tank 5 and the sealing shaft 701 in sequence and extends into the interior of the mixing tank 5. The sealing shaft 701 can improve the sealing performance of the equipment. A connecting rod 702 is connected to the output end of the stirring motor 7. Two stirring racks 703 are connected to the outer surface of the connecting rod 702. A temperature sensor 11 is connected to the inner wall of the mixing tank 5. The internal temperature of the mixing tank 5 can be monitored by the temperature sensor 11.

[0026] The working principle of this utility model is as follows: During use, the four casters 202 at the bottom of the moving support 2 are used to move it to a suitable working position and connect it to the power supply. Then, the lid 9 is opened, and the shield tunnel slag and organic fertilizer to be processed are placed into the mixing tank 5. After placement, the lid 9 is closed. Appropriate parameters such as mixing temperature, stirring time, and swaying amplitude are set via the touch panel 3. Then, the device is turned on via the main control switch 4, and the temperature control 6 starts working simultaneously. The electric heating plate 605 heats the mixing tank 5, causing the temperature inside the tank to gradually rise. At this time, the temperature sensor 11 embedded in the inner wall of the mixing tank 5 monitors the temperature inside the tank in real time and transmits the data to the touch panel 3. When the temperature inside the tank reaches the preset upper temperature limit, the cooler 601... Upon startup, the refrigerant in the refrigeration unit 601 enters the refrigeration pipe 604 in the cooling tank 603 through the output pump 602. The refrigerant circulates within the refrigeration pipe 604, absorbing heat from the mixing tank 5, thereby reducing the temperature inside the tank. Simultaneously, the stirring motor 7 drives the connecting rod 702 and the two stirring frames 703 to rotate, stirring the shield tunneling excavation soil and bio-organic fertilizer inside the tank. This ensures that the shield tunneling excavation soil and bio-organic fertilizer are heated evenly. In conjunction with the swing motor 801 in the swing drive component 8, the drive shaft 802 at its output end drives the mixing tank 5 to swing around the driven shaft 803 at a certain angle, allowing the shield tunneling excavation soil and bio-organic fertilizer inside the tank to achieve a more three-dimensional and comprehensive tumbling during the stirring process, further improving the uniformity of the mixing of the shield tunneling excavation soil and bio-organic fertilizer.

[0027] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for mixing tunnel boring machine excavated soil with biological organic fertilizer, comprising a mounting frame (1), characterized in that, The mounting frame (1) has a mixing tank (5) inside. A swing drive (8) is connected to the right side of the mounting frame (1). A lid (9) is hinged to the upper surface of the mixing tank (5). A handle (10) is connected to the upper surface of the lid (9). A touch panel (3) is connected to the left side of the mounting frame (1). A master control switch (4) is connected to the left side of the mounting frame (1). A temperature control (6) is connected to the back of the mixing tank (5). A stirring motor (7) is connected to the bottom of the mixing tank (5).

2. The device for mixing shield tunnel slag and bio-organic fertilizer according to claim 1, characterized in that, The bottom surface of the mounting bracket (1) is connected to a movable support (2), and the bottom surface of the movable support (2) is connected to two support feet (201). The bottom surface of each support foot (201) is connected to two omnidirectional wheels (202).

3. The device for mixing shield tunnel slag and bio-organic fertilizer according to claim 1, characterized in that, The swing drive (8) includes a swing motor (801) connected to the right side of the mounting frame (1). The output end of the swing motor (801) passes through the mounting frame (1) and extends into the interior of the mounting frame (1). The output end of the swing motor (801) is connected to a drive shaft (802). A driven shaft (803) is embedded in the left side wall of the mounting frame (1). The driven shaft (803) and the drive shaft (802) are both connected to the mixing tank (5) on their respective sides.

4. The device for mixing shield tunneling slag and bio-organic fertilizer according to claim 1, characterized in that, The temperature control unit (6) includes a cooler (601) connected to the back of the mixing tank (5). The output end of the cooler (601) is connected to an output pump (602). A cooling groove (603) is provided on the inner wall of the mixing tank (5). A cooling pipe (604) is connected to the inner wall of the cooling groove (603).

5. The device for mixing shield tunnel slag and bio-organic fertilizer according to claim 4, characterized in that, The output end of the refrigerator (601) passes through the mixing tank (5) and extends into the interior of the cooling tank (603). The output end of the output pump (602) passes through the mixing tank (5) and extends into the interior of the cooling tank (603). One end of the refrigeration pipe (604) is connected to the output pump (602), and the other end of the refrigeration pipe (604) is connected to the refrigerator (601). An electric heating plate (605) is connected to the inner bottom wall of the mixing tank (5).

6. The device for mixing shield tunnel slag and bio-organic fertilizer according to claim 1, characterized in that, The inner bottom wall of the mixing tank (5) is inlaid with a sealing shaft (701), and the output end of the stirring motor (7) passes through the mixing tank (5) and the sealing shaft (701) in sequence and extends into the interior of the mixing tank (5).

7. The device for mixing shield tunnel slag and bio-organic fertilizer according to claim 1, characterized in that, The output end of the stirring motor (7) is connected to a connecting rod (702), and two stirring racks (703) are connected to the outer surface of the connecting rod (702). A temperature sensor (11) is connected to the inner wall of the mixing tank (5).

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