High-quality separation and drying equipment system for engineering waste mud

Abstract

The utility model discloses a kind of high-quality separation dry equipment systems of engineering waste slurry, the system includes the drum screen, primary cyclone, vibrating dewatering screen machine and secondary cyclone arranged in sequence, the output of the drum screen is connected with the first input of first collection tank, the output of the first collection tank is connected with the input of the primary cyclone, the first output of the primary cyclone is connected with the input of the vibrating dewatering screen machine, the output of the vibrating dewatering screen machine is connected with the first input of second collection tank, the output of the second collection tank is connected with the input of the secondary cyclone, the first output of the secondary cyclone is connected with the input of third collection tank. The utility model has the advantages of: multiple separation is realized, and the effective treatment and utilization of engineering waste slurry are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of mud treatment, and in particular to a high-quality separation and drying equipment system for engineering waste mud. Background Technology

[0002] With the continuous improvement of engineering technology, my country's urbanization has shown a vigorous development trend. However, in this process, my country has also become one of the world's largest producers of waste mud. If not treated in time, it will cause serious problems such as river blockage and soil erosion, posing a serious threat to the ecological environment. Therefore, solving the problem of how to manage waste mud and ensuring its proper disposal is a key research direction that needs to be focused on.

[0003] Traditional mud treatment processes often employ methods such as single screening, natural sedimentation, or mechanical filtration. These methods suffer from limitations in equipment processing capacity, incomplete solid-liquid separation, and ineffective recovery of fine particles. Consequently, the moisture content of the dewatered mud cake remains high (typically >30%), making it difficult to achieve refined classification and recovery of solid particles. Furthermore, existing technologies involve loosely connected multi-stage equipment, resulting in high energy consumption and a high risk of secondary pollution, failing to meet the requirements of green construction and "no mud spillage." Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the existing technology by providing a high-quality separation and drying equipment system for engineering waste slurry. This system consists of a drum screen, a primary hydrocyclone, a vibrating dewatering screen, and a secondary hydrocyclone arranged in sequence, achieving multi-stage separation and ensuring the effective treatment and utilization of engineering waste slurry.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A high-quality separation and drying equipment system for engineering waste mud includes a drum screen, a primary hydrocyclone, a vibrating dewatering screen, and a secondary hydrocyclone arranged sequentially. The output port of the drum screen is connected to the first input port of a first collection tank, the output port of the first collection tank is connected to the input port of the primary hydrocyclone, the first output port of the primary hydrocyclone is connected to the input port of the vibrating dewatering screen, the output port of the vibrating dewatering screen is connected to the first input port of a second collection tank, the output port of the second collection tank is connected to the input port of the secondary hydrocyclone, and the first output port of the secondary hydrocyclone is connected to the input port of a third collection tank.

[0007] The inlet of the drum screen is connected to the outlet of the first feed pump. A second feed pump is provided between the outlet of the first collection tank and the inlet of the first-stage hydrocyclone. A third feed pump is provided between the outlet of the second collection tank and the inlet of the second-stage hydrocyclone.

[0008] The output port of the third collection tank is connected to the input port of the waste slurry tank, and the output port of the waste slurry tank is connected to the input port of the filter press.

[0009] The output port of the second collection tank is connected to the input port of the first-stage hydrocyclone.

[0010] The second output port of the first-stage cyclone separator is connected to the first input port of the adjustment tank, the second input port of the first collection tank, and the second input port of the second collection tank, respectively.

[0011] The second output port of the secondary cyclone separator is connected to the second input port of the adjustment tank and the third input port of the second collection tank, respectively.

[0012] Both the primary hydrocyclone and the secondary hydrocyclone include a cylindrical body, a conical body, a feed pipe, an overflow pipe, and an underflow pipe. The conical body, the feed pipe, and the overflow pipe are respectively connected to the bottom, side, and top of the cylindrical body. The underflow pipe is connected to the bottom of the conical body. The bottom end of the overflow pipe is installed inside the cylindrical body, and the top end extends outside the cylindrical body.

[0013] The overflow pipe is located in the mounting hole at the center of the top of the cylindrical body and moves along the axial direction of the cylindrical body. The cylindrical body is provided with several hydraulic telescopic rods around the mounting hole. The top of the overflow pipe is provided with a fixing ring. The fixed end of the hydraulic telescopic rod is connected to the top of the cylindrical body, and the telescopic end is connected to the fixing ring. Multiple O-rings are provided in the mounting hole.

[0014] The top of the underflow pipe is equipped with a butterfly valve, the size of which is smaller than the inner diameter of the underflow pipe.

[0015] The butterfly valve includes a shaft, valve plates, connecting rings, and torsion springs. Both ends of the shaft are connected to the underflow pipe. The valve plates are semi-circular, and there are two valve plates, which are respectively located on both sides of the shaft. Each of the radial ends of the valve plate is provided with a connecting ring. The connecting rings and the torsion springs are both sleeved on the shaft, and the two ends of the torsion springs are respectively supported on the bottom of the two valve plates.

[0016] The advantages of this invention are: it achieves multi-stage separation, ensuring the effective treatment and utilization of engineering waste mud. Attached Figure Description

[0017] Figure 1 This is an overall layout diagram of the high-quality separation and drying equipment system for engineering waste mud of this utility model;

[0018] Figure 2This is a partial structural diagram of the high-quality separation and drying equipment system for engineering waste mud of this utility model;

[0019] Figure 3 This is a schematic diagram of the first-stage hydrocyclone of this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of B in the middle;

[0022] Figure 6 This is a top view of the first-stage hydrocyclone of this utility model;

[0023] Figure 7 This is a schematic diagram of the bottom of the butterfly valve of this utility model;

[0024] like Figures 1-7 As shown in the figure, the markings represent:

[0025] 10. Rotary drum screen, 20. Primary hydrocyclone, 201. Cylindrical cylinder, 202. Conical cylinder, 203. Feed pipe, 204. Overflow pipe, 205. Hydraulic telescopic rod, 206. Fixing ring, 207. O-ring seal, 208. Butterfly valve, 209. Shaft, 2091. Valve plate, 2092. Connecting ring, 2093. Torsion spring, 2094. Vibrating dewatering screen, 30. Secondary hydrocyclone, 40. First collection tank, 50. Second collection tank, 60. Third collection tank, 70. First feed pump, 80. Second feed pump, 90. Third feed pump, 100. First valve, 110. Second valve, 120. Third valve, 130. Fourth valve, 140. Fifth valve, 150. Detailed Implementation

[0026] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0027] Example: Figures 1-7As shown, this embodiment relates to a high-quality separation and drying equipment system for engineering waste slurry. The system mainly includes a drum screen 10, a primary hydrocyclone 20, a vibrating dewatering screen 30, and a secondary hydrocyclone 40 arranged sequentially. The inlet of the drum screen 10 (with a drive motor) is connected to the outlet of a first feed pump 80. The first feed pump 80 pumps the slurry generated during pile foundation construction into the drum screen 10, where large pieces of slag larger than 4mm are screened. The outlet of the drum screen 10 is connected to the first inlet of a first collection tank 50, allowing the slurry processed by the drum screen 10 to enter the first collection tank 50. The outlet of the first collection tank 50 is connected to the inlet of the primary hydrocyclone 20. A second feed pump 90 and a first valve 110 are provided between the outlet of the first collection tank 50 and the inlet of the primary hydrocyclone 20, using the second feed pump 90 to pump the slurry into the primary hydrocyclone 20.

[0028] The first output port of the primary hydrocyclone 20 is connected to the input port of the vibrating dewatering screen 30, and the output port of the vibrating dewatering screen 30 is connected to the first input port of the second collection tank 60. The slurry from the first output port of the primary hydrocyclone 20 is screened by the vibrating dewatering screen 30 (with a vibrating motor). The screen of the vibrating dewatering screen 30 can be replaced with different screen hole sizes. Large particles of slurry processed by the vibrating dewatering screen 30 are directly dried on site, while small particles of slurry enter the second collection tank 60. The primary hydrocyclone 20 and the vibrating dewatering screen 30 can separate and dewater fine particles of slag larger than 20μm. The second output port of the first-stage hydrocyclone 20 is connected to the first input port of the equalization tank, the second input port of the first collection tank 50, and the second input port of the second collection tank 60. A fourth valve 140 is provided between the second output port of the first-stage hydrocyclone 20 and the second input port of the first collection tank 50, and a fifth valve 150 is provided between the second output port of the first-stage hydrocyclone 20 and the second input port of the second collection tank 60, so that the slurry from the second output port of the first-stage hydrocyclone 20 can enter the equalization tank or flow back to the first collection tank 50 / second collection tank 60. The output port of the second collection tank 60 is connected to the input port of the first-stage hydrocyclone 20, and a third valve 130 is provided between the output port of the second collection tank 60 and the input port of the first-stage hydrocyclone 20. The second feed pump 90 and the first valve 110 are also provided between the output port of the second collection tank 60 and the input port of the first-stage hydrocyclone 20. The second feed pump 90 is used to return the slurry in the second collection tank 60 to the first-stage hydrocyclone 20.

[0029] The output port of the second collection tank 60 is connected to the input port of the secondary hydrocyclone 40. A third feed pump 100 and a second valve 120 are provided between the output port of the second collection tank 60 and the input port of the secondary hydrocyclone 40. The third feed pump 100 pumps the slurry into the secondary hydrocyclone 40, which can separate and concentrate suspended particles larger than 5μm. The first output port of the secondary hydrocyclone 40 is connected to the input port of the third collection tank 70, the output port of the third collection tank 70 is connected to the input port of the waste slurry tank, and the output port of the waste slurry tank is connected to the input port of the filter press. The second output port of the secondary hydrocyclone 40 is connected to the second input port of the equalization tank and the third input port of the second collection tank 60, so that the slurry from the second output port of the secondary hydrocyclone 40 can enter the equalization tank or flow back into the second collection tank 60.

[0030] like Figures 3-7 As shown, both the primary hydrocyclone 20 and the secondary hydrocyclone 40 include a cylindrical body 201, a conical body 202, a feed pipe 203, an overflow pipe 204, and an underflow pipe 205. The conical body 202, the feed pipe 203, and the overflow pipe 204 are respectively connected to the bottom, side, and top of the cylindrical body 201. The underflow pipe 205 is connected to the bottom of the conical body 202. The bottom end of the overflow pipe 204 is installed inside the cylindrical body 201, and the top end extends outside the cylindrical body 201. The feed pipe 203 of the first-stage hydrocyclone 20 is the input port of the first-stage hydrocyclone 20, the underflow pipe 205 of the first-stage hydrocyclone 20 is the first output port of the first-stage hydrocyclone 20, and the overflow pipe 204 of the first-stage hydrocyclone 20 is the second output port of the first-stage hydrocyclone 20; the feed pipe 203 of the second-stage hydrocyclone 40 is the input port of the second-stage hydrocyclone 40, the underflow pipe 205 of the second-stage hydrocyclone 40 is the first output port of the second-stage hydrocyclone 40, and the overflow pipe 204 of the second-stage hydrocyclone 40 is the second output port of the second-stage hydrocyclone 40. An overflow pipe 204 is installed in a mounting hole at the center of the top of a cylindrical body 201 and moves along the axial direction of the cylindrical body 201. Four hydraulic telescopic rods 206 are arranged circumferentially around the mounting hole on the cylindrical body 201. A fixing ring 207 is provided at the top of the overflow pipe 204. The fixed end of the hydraulic telescopic rod 206 is connected to the top of the cylindrical body 201, and the telescopic end is connected to the fixing ring 207. Two O-rings 208 are provided in the mounting hole. The hydraulic telescopic rods 206 drive the overflow pipe 204 to move vertically, changing the position of the overflow pipe 204 within the cylindrical body 201, and sealing it with the O-rings 208, thus achieving real-time optimization of the separation interface position based on material characteristics.

[0031] A butterfly valve 209 is provided at the top of the underflow pipe 205. The size of the butterfly valve 209 is smaller than the inner diameter of the underflow pipe 205. The butterfly valve 209 includes a shaft 2091, a valve plate 2092, a connecting ring 2093, and a torsion spring 2094. Both ends of the shaft 2091 are connected to the underflow pipe 205. The valve plate 2092 is semi-circular, and there are two valve plates 2092, which are respectively located on both sides of the shaft 2091. Each radial end of the valve plate 2092 is provided with a connecting ring 2093. The connecting ring 2093 and the torsion spring 2094 are both sleeved on the shaft 2091. The two ends of the torsion spring 2094 are respectively supported on the bottom of the two valve plates 2092. When the pressure of the mud in the primary hydrocyclone 20 (secondary hydrocyclone 4) is low, the valve plate 2092 remains horizontal, and the flow channel is small. When the pressure of the mud in the primary hydrocyclone 20 (secondary hydrocyclone 4) is high, the torsion spring 2094 is compressed, and the valve plate 2092 rotates downward, and the flow channel is large. When the pressure of the mud in the primary hydrocyclone 20 (secondary hydrocyclone 4) is low, the torsion spring 2094 rebounds, thus realizing automatic adjustment of the opening according to the pressure, preventing blockage and stabilizing the separation performance.

[0032] like Figures 1-7 As shown, this embodiment also has the following working method:

[0033] Open the first valve 110, the second valve 120 and the fifth valve 150, close the third valve 130 and the fourth valve 140, and start the first feed pump 80, the second feed pump 90, the third feed pump 100, the drum screen 10 and the vibrating dewatering screen 30, thereby realizing the treatment of mud.

[0034] The beneficial technical effect of this embodiment is that it achieves multi-stage separation, ensuring the effective treatment and utilization of engineering waste mud.

[0035] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A high-quality separation and drying equipment system for engineering waste mud, characterized in that... The system includes a drum screen, a primary hydrocyclone, a vibrating dewatering screen, and a secondary hydrocyclone arranged in sequence. The output port of the drum screen is connected to the first input port of a first collection tank. The output port of the first collection tank is connected to the input port of the primary hydrocyclone. The first output port of the primary hydrocyclone is connected to the input port of the vibrating dewatering screen. The output port of the vibrating dewatering screen is connected to the first input port of a second collection tank. The output port of the second collection tank is connected to the input port of the secondary hydrocyclone. The first output port of the secondary hydrocyclone is connected to the input port of a third collection tank.

2. The high-quality separation and drying equipment system for engineering waste mud as described in claim 1, characterized in that... The inlet of the drum screen is connected to the outlet of the first feed pump. A second feed pump is provided between the outlet of the first collection tank and the inlet of the first-stage hydrocyclone. A third feed pump is provided between the outlet of the second collection tank and the inlet of the second-stage hydrocyclone.

3. The high-quality separation and drying equipment system for engineering waste mud as described in claim 1, characterized in that... The output port of the third collection tank is connected to the input port of the waste slurry tank, and the output port of the waste slurry tank is connected to the input port of the filter press.

4. The high-quality separation and drying equipment system for engineering waste mud as described in claim 1, characterized in that... The output port of the second collection tank is connected to the input port of the first-stage hydrocyclone.

5. The high-quality separation and drying equipment system for engineering waste mud as described in claim 1, characterized in that... The second output port of the first-stage cyclone separator is connected to the first input port of the adjustment tank, the second input port of the first collection tank, and the second input port of the second collection tank, respectively.

6. The high-quality separation and drying equipment system for engineering waste mud as described in claim 5, characterized in that... The second output port of the secondary cyclone separator is connected to the second input port of the adjustment tank and the third input port of the second collection tank, respectively.

7. The high-quality separation and drying equipment system for engineering waste mud as described in claim 1, characterized in that... Both the primary hydrocyclone and the secondary hydrocyclone include a cylindrical body, a conical body, a feed pipe, an overflow pipe, and an underflow pipe. The conical body, the feed pipe, and the overflow pipe are respectively connected to the bottom, side, and top of the cylindrical body. The underflow pipe is connected to the bottom of the conical body. The bottom end of the overflow pipe is installed inside the cylindrical body, and the top end extends outside the cylindrical body.

8. The high-quality separation and drying equipment system for engineering waste mud as described in claim 7, characterized in that... The overflow pipe is located in the mounting hole at the center of the top of the cylindrical body and moves along the axial direction of the cylindrical body. The cylindrical body is provided with several hydraulic telescopic rods around the mounting hole. The top of the overflow pipe is provided with a fixing ring. The fixed end of the hydraulic telescopic rod is connected to the top of the cylindrical body, and the telescopic end is connected to the fixing ring. Multiple O-rings are provided in the mounting hole.

9. The high-quality separation and drying equipment system for engineering waste mud as described in claim 7, characterized in that... The top of the underflow pipe is equipped with a butterfly valve, the size of which is smaller than the inner diameter of the underflow pipe.

10. The high-quality separation and drying equipment system for engineering waste mud as described in claim 9, characterized in that... The butterfly valve includes a shaft, valve plates, connecting rings, and torsion springs. Both ends of the shaft are connected to the underflow pipe. The valve plates are semi-circular, and there are two valve plates, which are respectively located on both sides of the shaft. Each of the radial ends of the valve plate is provided with a connecting ring. The connecting rings and the torsion springs are both sleeved on the shaft, and the two ends of the torsion springs are respectively supported on the bottom of the two valve plates.

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