Flocculation pressure-pumping reduction device and method for resource utilization of muck slurry

Abstract

The invention relates to the technical field of slurry resource utilization, in particular to a flocculation pressure extraction reduction device and method for residue soil slurry resource utilization, a shaftless spiral piece is rotatably connected to the outer side of a suction filtration pipe, an air outlet nozzle is formed in the bottom end of the shaftless spiral piece, the air outlet nozzle can discharge air, and when the shaftless spiral piece rotates, the air outlet nozzle can discharge air; sludge near the bottom end of the shaftless spiral piece is supplemented to the bottom end of the shaftless spiral piece and moves upwards after being mixed with gas exhausted by the gas outlet nozzle, a low-density area with dense gaps is formed near the suction filtration pipe, the shaftless spiral piece is arranged near the suction filtration pipe, when the shaftless spiral piece rotates, upward pushing force can be formed near the suction filtration pipe, and the suction filtration effect is improved. The first effect is that generated high-density mud cakes are turned upwards, so that the effects of permeability and suction filtration resistance reduction are achieved, and the second effect is that a low-density area b with dense gaps is formed near a suction filtration pipe, and the fluidity of sludge near the suction filtration pipe and the effective suction filtration radius can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mud resource utilization, and in particular to a flocculation, pumping and reducing device and method for resource utilization of slag mud. Background Art

[0002] The advantage of flocculation treatment of mud is that it can quickly reduce the amount of mud with high water content, but the treated mud still has a high water content and does not meet the construction requirements of backfill soil and greening soil, so secondary treatment is required.

[0003] Vacuum filtration can quickly reduce the moisture content of mud. However, when vacuum filtration alone is used to treat mud, soil particles in the mud will gradually accumulate on the surface of the filter cloth, forming a mud skin, which hinders the dehydration of the mud. Changing the physical properties of the filter cloth can improve the dehydration efficiency to a certain extent, but the effect is not obvious. The pores between flocs (inter-floc pores) during the filtration process are a key factor affecting mud dehydration.

[0004] Therefore, in order to solve the above problems, a flocculation, pressure reduction and volume reduction device and method for resource utilization of slag slurry are proposed, which can form an upward thrust near the suction pipe, flip the mud skin upward, and form a high-gap low-density area near the suction pipe, thereby increasing the fluidity of the sludge near the suction pipe and the effective filtration radius. Summary of the Invention

[0005] The purpose of the present invention is to provide a flocculation, pressure reduction and reduction device and method for resource utilization of slag slurry, which can achieve rapid reduction of slag slurry on the basis of reducing land occupation and reduce the transportation cost of subsequent resource utilization (for agriculture or foundation landfill).

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flocculation, pressure reduction and decompression device for resource utilization of slag slurry, comprising a slurry tank connected to an inlet flange, a plurality of suction and filtration pipes evenly inserted into the inner side of the slurry tank, the inlet flange having a closable valve, and a gas compensation valve provided at the top of the slurry tank for exhausting air from the slurry tank when the slurry enters;

[0007] The outer side of the suction filter tube is connected to a shaftless spiral blade for rotation. The bottom end of the shaftless spiral blade is provided with an air outlet nozzle, which can discharge gas. When the shaftless spiral blade rotates, the sludge near the bottom end of the shaftless spiral blade is replenished to the bottom end of the shaftless spiral blade and mixed with the gas discharged from the air outlet nozzle and then moves upward, forming a low-density area with dense gaps near the suction filter tube.

[0008] By arranging a shaftless spiral blade near the suction filter pipe, the shaftless spiral blade can form an upward thrust near the suction filter pipe when it rotates. The first effect it produces is to flip the already generated high-density mud skin upward, thereby improving permeability and reducing suction resistance;

[0009] The second effect produced is that, as the gas is discharged from the air outlet at the bottom end of the shaftless spiral, when the shaftless spiral rotates, the sludge near the bottom end of the shaftless spiral is replenished to the bottom end of the shaftless spiral and mixed with the gas discharged from the air outlet, and then moves upward under the thrust, forming a low-density area b with dense gaps near the suction tube, which can effectively increase the fluidity of the sludge near the suction tube and the effective radius of filtration. Moreover, because there are more gaps in the low-density area b, the suction force will pass through the low-density area b and act on a farther range, thereby causing the mud skin to flip upward while increasing the radius range of the suction effect.

[0010] As a flocculation, suction and reduction device for resource utilization of slag slurry according to the present invention, the upper side of the suction tube is a solid part, the lower side is fixedly connected to a tubular grid, the outer side of the grid is fixedly connected to a filter cloth, and the center of the suction tube is fixedly connected to a suction pipe capable of generating negative pressure, and the bottom end of the suction pipe extends to the bottom of the suction tube.

[0011] In the present invention, after the pressure pipe generates positive pressure, high-pressure gas enters the upper side of the mud tank through the outlet pipe. The solid part is used to form a sealed high-pressure space between the upper surface of the mud and the mud tank. Through suction and pressure, the suction and dehydration effect is increased. The water in the mud enters the inner side of the suction pipe through the filter cloth and the mesh through infiltration, high pressure and suction, and is taken away by the suction pipe. The suction pipe is not directly connected to the input end of the negative pressure device. A storage chamber for separating the liquid is required between the suction pipe and the negative pressure device. The negative pressure device is a prior art and can be a vacuum pump, etc., which will not be elaborated here.

[0012] A pressure sensor can be installed in the high-pressure space, and a solenoid valve can be installed on the air outlet pipe to stabilize the pressure of the high-pressure space. When the pressure is high enough, the air outlet pipe will be closed.

[0013] As a flocculation, pumping and reduction device for resource utilization of slag slurry according to the present invention, the top of the mud tank is fixedly connected to a protective frame, the inner side of the bottom end of the mud tank is rotatably connected to a mud unloading bottom plate through a hinge, and the bottom end of the mud tank is opened and closed by a locking mechanism. The two sides of the bottom end of the mud tank are arranged in a slope shape, and the slope of the bottom end of the mud tank is used to make the sludge slide downward, thereby facilitating the compensation of the sludge at the bottom end of the shaftless spiral blade. The locking mechanism is a prior art and will not be elaborated here.

[0014] As a flocculation, pumping and reducing device for resource utilization of slag slurry of the present invention, a pumping tube is fixedly connected to the top of the suction tube, the suction tube is communicated with the inner side of the pumping tube, and the pumping tube can be connected to an external negative pressure device.

[0015] As a flocculation, pumping and reduction device for resource utilization of slag slurry according to the present invention, a positioning plate is rotatably connected to the inner side of the top of the mud tank, a connecting pipe is fixedly connected to the inner side of the positioning plate, the bottom end of the connecting pipe is fixedly connected to the shaftless spiral piece, a spiral channel is opened on the inner side of the shaftless spiral piece, the spiral channel connects the air outlet nozzle with the connecting pipe, and a turntable is fixedly connected to the top of the connecting pipe.

[0016] As a flocculation, pumping and reduction device for resource utilization of slag slurry according to the present invention, an air inlet cavity is provided on the inner side of the top end of the turntable, and the air inlet cavity is connected to the inner side of the connecting pipe through a tubular passage. An air ring is rotatably connected to the outer side of the top end of the turntable, and an air outlet cavity is provided on the inner side of the air ring, and the air outlet cavity corresponds to the air inlet cavity. The air outlet cavities in multiple air rings are connected to each other, and the air rings near the edge are connected to a pressure pipe, which can be connected to an external blowing device.

[0017] In the present invention, the blowing device is a prior art and will not be elaborated here. It can be a booster pump, etc. The amount of gas blown out by the air outlet nozzle is less than the amount of gas extracted by the negative pressure device to ensure the filtration effect. After high pressure is generated in the pressure tube, the gas is discharged through the air ring, the air outlet cavity, the air inlet cavity, the tubular passage inside the turntable, the connecting pipe, the spiral channel opened on the inner side of the shaftless spiral sheet, and the air outlet nozzle;

[0018] As a flocculation, pumping and reduction device for resource utilization of slag slurry according to the present invention, the lower outer side of the turntable is in the shape of a worm gear, the inner side of the protective frame is rotatably connected to a worm, the outer side of the worm is engaged with the lower side of the turntable, and the inner side of the bottom end of the protective frame is fixedly connected to a motor, the end of the main shaft of the motor is fixedly connected to one end of the worm, and when the motor rotates, it can drive the shaftless spiral piece to rotate.

[0019] In the present invention, the shaftless spiral piece rotates in the following manner: the motor rotates, the motor drives the worm to rotate, the rotation of the worm drives the turntable to rotate, and the rotation of the turntable drives the shaftless spiral piece to rotate through the positioning plate and the connecting pipe;

[0020] As a flocculation, pumping and reducing device for resource utilization of slag slurry of the present invention, the inner side of the top of the slurry tank is connected to an air outlet pipe, and the air outlet pipe is connected to the pressure pipe.

[0021] As a flocculation, pressure reduction and decompression device for resource utilization of sludge according to the present invention, the pitch p of the shaftless spiral blade gradually decreases from bottom to top. In order to ensure the sealing performance of the filtration, the lowest position of the solid part is lower than the height of the upper surface of the sludge after the decompression is completed.

[0022] In the present invention, due to the downward infiltration, the filtration effect is mainly manifested at the bottom end of the shaftless spiral blade. By gradually reducing the pitch p of the shaftless spiral blade from bottom to top, the sludge driven by the shaftless spiral blade can be squeezed more and more upwards during the process of sludge turning upward when the shaftless spiral blade rotates. The water in the sludge is further squeezed out through the squeezing and enters the interior of the filtration tube, thereby increasing the sludge reduction effect.

[0023] The flocculation, pumping and reducing device for resource utilization of slag slurry comprises the following steps:

[0024] Step 1: The mud pump pumps the mud and a matching proportion of flocculant into the inner side of the mud tank through the inlet flange. The motor drives the shaftless spiral blade to rotate, which can play a stirring role and evenly distribute the flocculant. The flocculants are polyacrylamide and polyaluminum chloride. Flocculation is a pre-treatment stage for mud reduction. It adjusts the electrical properties of mud particles or forms larger flocs through the effects of polymer bridging and charge patching. The increase in the particle size of sludge aggregates will lead to a decrease in the mud skin resistance, thereby increasing permeability.

[0025] Step 2: Connect the suction pipe to the negative pressure equipment, and connect the pressure pipe to the external blowing device. The negative pressure in the suction pipe will generate negative pressure in the suction filter pipe and take away the hydraulic pressure of the suction filter pipe. The pressure pipe will generate positive pressure, so that a high-pressure space is formed between the upper surface of the mud and the mud tank. One suction and one pressure will increase the suction and dehydration effect.

[0026] Step 3: The motor rotates again, and the sludge near the bottom end of the shaftless spiral is replenished to the bottom end of the shaftless spiral and mixed with the gas discharged from the air outlet nozzle and then moves upward, forming a low-density area b with dense gaps near the suction tube, which increases the permeability of the sludge near the suction tube. The high gap of the sludge near the suction tube can make the suction range pass through the low-density area b to a farther range, thereby turning the mud skin upward while increasing the suction range.

[0027] Step 4: After the filtration is completed, the mud discharge bottom plate is opened through the locking mechanism to discharge the sludge.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The flocculation, pressure reduction and volume reduction device for resource utilization of slag mud is equipped with a shaftless spiral blade near the suction filter pipe. When the shaftless spiral blade rotates, it can form an upward thrust near the suction filter pipe. The first effect it produces is to flip the already generated high-density mud skin upward, thereby improving permeability and reducing suction resistance.

[0030] 2. The flocculation, pumping and reducing device for resource utilization of slag slurry discharges gas from the bottom air outlet of the shaftless spiral. When the shaftless spiral rotates, the sludge near the bottom of the shaftless spiral is replenished to the bottom of the shaftless spiral and mixed with the gas discharged from the air outlet. The sludge moves upward under the thrust, forming a low-density area b with dense gaps near the suction pipe, which can effectively increase the fluidity of the sludge near the suction pipe and the effective radius of filtration. Moreover, because there are more gaps in the low-density area b, the suction force will pass through the low-density area b and act on a farther range, thereby causing the mud skin to flip upward while increasing the radius range of the suction effect.

[0031] 3. The flocculation, pumping and reduction device for resource utilization of slag slurry, in the present invention, after the pressure pipe generates positive pressure, the high-pressure gas enters the upper side of the mud tank through the outlet pipe, and the solid part is used to form a sealed high-pressure space between the upper surface of the mud and the mud tank. Through suction and pressure, the suction and dehydration effect is increased, and the moisture in the mud enters the inner side of the suction pipe through the filter cloth and the mesh through infiltration, high pressure and suction, and is taken away by the suction pipe. The suction pipe is not directly connected to the input end of the negative pressure device, and a storage chamber for separating the liquid is required between the suction pipe and the negative pressure device.

[0032] 4. The flocculation, pressure-extraction and reduction device used for resource utilization of slag slurry has a gas outlet that blows out a smaller amount of gas than that extracted by the negative pressure equipment, ensuring the filtration effect. After high pressure is generated in the pressure pipe, the gas is discharged through the air ring, the air outlet cavity, the air inlet cavity, the tubular passage inside the turntable, the connecting pipe, the spiral channel opened on the inside of the shaftless spiral sheet, and the air outlet nozzle.

[0033] 5. In the flocculation, pumping and reducing device for resource utilization of slag sludge, due to infiltration, the filtration effect is mainly manifested at the bottom end of the shaftless spiral blade. The present invention gradually reduces the pitch p of the shaftless spiral blade from bottom to top. When the shaftless spiral blade rotates, the sludge is turned upward, and the sludge driven by the shaftless spiral blade is squeezed more and more upward. The water in the sludge is further squeezed out through squeezing and enters the interior of the filtration tube, thereby increasing the sludge reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 Schematic diagram of the overall internal structure of the present invention;

[0036] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A;

[0037] Figure 4 This is a schematic structural diagram of the low-density area near the suction filtration tube of the present invention;

[0038] Figure 5 This is a schematic diagram of the explosion structure at the suction filtration pipe of the present invention;

[0039] Figure 6 Schematic diagram of the cross-sectional structure of the gas ring of the present invention;

[0040] Figure 7 Schematic diagram of the cross-sectional structure of the suction filtration tube of the present invention;

[0041] Figure 8 This is a further schematic diagram of the appearance structure of the shaftless spiral blade of the present invention.

[0042] Figure: 1, mud tank; 2, protective frame; 3, suction pipe; 4, pressure pipe; 5, inlet flange; 6, air outlet pipe; 7, positioning plate; 8, suction filter pipe; 9, shaftless spiral blade; 10, locking mechanism; 11, mud discharge bottom plate; 12, connecting pipe; 13, air ring; 14, worm; 15, rotary table; 16, air outlet chamber; 17, air inlet chamber; 18, air outlet nozzle;

[0043] 81. Solid part; 82. Filter cloth; 83. Mesh; 84. Straw. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example 1, please refer to Figure 1-Figure 7 The present invention provides a technical solution: a flocculation, pressure reduction and decompression device for resource utilization of slag slurry, comprising a slurry tank 1 connected to an inlet flange 5, a plurality of suction and filtration pipes 8 evenly inserted into the inner side of the slurry tank 1, the inlet flange 5 having a closable valve, and a gas compensation valve provided at the top of the slurry tank 1 for discharging air from the slurry tank 1 when the slurry enters;

[0046] The outer side of the suction tube 8 is rotatably connected to a shaftless spiral piece 9, and an air outlet nozzle 18 is provided at the bottom end of the shaftless spiral piece 9. The air outlet nozzle 18 can discharge gas. When the shaftless spiral piece 9 rotates, the sludge near the bottom end of the shaftless spiral piece 9 is replenished to the bottom end of the shaftless spiral piece 9 and mixed with the gas discharged from the air outlet nozzle 18 and then moves upward, forming a low-density area with dense gaps near the suction tube 8.

[0047] By arranging the shaftless spiral piece 9 near the suction filtration tube 8, the shaftless spiral piece 9 can form an upward thrust near the suction filtration tube 8 when it rotates. The first effect it produces is to flip the already generated high-density mud skin upward, thereby improving permeability and reducing the suction filtration resistance;

[0048] The second effect produced is that, as the gas is discharged from the air outlet 18 at the bottom end of the shaftless spiral blade 9, when the shaftless spiral blade 9 rotates, the sludge near the bottom end of the shaftless spiral blade 9 is replenished to the bottom end of the shaftless spiral blade 9 and mixed with the gas discharged from the air outlet 18, and then moves upward under the thrust, forming a low-density area b with dense gaps near the suction tube 8, which can effectively increase the fluidity of the sludge near the suction tube and the effective radius of filtration. Moreover, because there are more gaps in the low-density area b, the suction force will pass through the low-density area b and act on a farther range, thereby causing the mud skin to flip upward while increasing the radius range of the suction effect.

[0049] Specifically, the upper side of the suction tube 8 is a solid part 81, the lower side is fixedly connected to a tubular grid 83, the outer side of the grid 83 is fixedly connected to a filter cloth 82, and the center of the suction tube 8 is fixedly connected to a suction pipe 84 that can generate negative pressure, and the bottom end of the suction pipe 84 extends to the bottom of the suction tube 8.

[0050] In the present invention, after the pressure pipe 4 generates positive pressure, the high-pressure gas enters the upper side of the mud tank 1 through the outlet pipe 6. The solid part 81 is used to form a sealed high-pressure space between the upper surface of the mud and the mud tank 1. Through suction and pressure, the suction and dehydration effect is increased. The water in the mud enters the inner side of the suction pipe 8 through the filter cloth 82 and the mesh 83 through infiltration, high pressure and suction, and is taken away by the suction pipe 84. The suction pipe 84 is not directly connected to the input end of the negative pressure device. A storage chamber for separating the liquid is required between the suction pipe 84 and the negative pressure device.

[0051] A pressure sensor can be provided in the high-pressure space, and a solenoid valve can be provided on the air outlet pipe 6 to stabilize the pressure of the high-pressure space and close the air outlet pipe 6 when the pressure is high enough;

[0052] Specifically, the top of the mud tank 1 is fixedly connected to a protective frame 2, and the inner side of the bottom end of the mud tank 1 is rotatably connected to a mud unloading bottom plate 11 through a hinge. The bottom end of the mud tank 1 realizes the opening and closing of the mud unloading bottom plate 11 through a locking mechanism 10. The two sides of the bottom end of the mud tank 1 are arranged in a slope shape. The slope of the bottom end of the mud tank 1 is used to make the sludge slide downward, thereby facilitating the compensation of the sludge at the bottom end of the shaftless spiral blade 9.

[0053] Specifically, the top end of the suction tube 8 is fixedly connected to the suction tube 3, the suction tube 84 is communicated with the inner side of the suction tube 3, and the suction tube 3 can be connected to an external negative pressure device.

[0054] Specifically, the inner side of the top of the mud tank 1 is rotatably connected to the positioning plate 7, the inner side of the positioning plate 7 is fixedly connected to the connecting pipe 12, the bottom end of the connecting pipe 12 is fixedly connected to the shaftless spiral piece 9, and a spiral channel is opened on the inner side of the shaftless spiral piece 9. The spiral channel connects the air outlet nozzle 18 with the connecting pipe 12, and the top of the connecting pipe 12 is fixedly connected to the turntable 15.

[0055] Specifically, an air inlet cavity 17 is opened on the inner side of the top of the turntable 15, and the air inlet cavity 17 is connected to the inner side of the connecting pipe 12 through a tubular passage. The outer side of the top of the turntable 15 is rotatably connected to the air ring 13, and an air outlet cavity 16 is opened on the inner side of the air ring 13. The air outlet cavity 16 corresponds to the air inlet cavity 17. The air outlet cavities 16 in multiple air rings 13 are connected to each other. The air ring 13 near the edge is connected to the pressure tube 4, and the pressure tube 4 can be connected to an external blowing device.

[0056] In the present invention, the amount of gas blown out by the gas outlet nozzle 18 is less than the amount of gas extracted by the negative pressure device, ensuring the filtration effect. After high pressure is generated in the pressure tube 4, the gas is discharged through the gas ring 13, the gas outlet cavity 16, the gas inlet cavity 17, the tubular passage inside the turntable 15, the connecting pipe 12, the spiral channel opened on the inner side of the shaftless spiral sheet 9, and the gas outlet nozzle 18;

[0057] Specifically, the lower outer side of the turntable 15 is in the shape of a worm gear, and the inner side of the protective frame 2 is rotatably connected to the worm 14. The outer side of the worm 14 is engaged with the lower side of the turntable 15. The inner side of the bottom end of the protective frame 2 is fixedly connected to the motor 19. The end of the main shaft of the motor 19 is fixedly connected to one end of the worm 14. When the motor 19 rotates, it can drive the shaftless spiral piece 9 to rotate.

[0058] In the present invention, the shaftless spiral piece 9 rotates in the following manner: the motor 19 rotates, the motor 19 drives the worm 14 to rotate, the rotation of the worm 14 drives the turntable 15 to rotate, and the rotation of the turntable 15 drives the shaftless spiral piece 9 to rotate through the positioning plate 7 and the connecting tube 12;

[0059] Specifically, the inner side of the top end of the mud tank 1 is connected to an air outlet pipe 6 , and the air outlet pipe 6 is connected to the pressure pipe 4 .

[0060] Example 2: This example is a further improvement of Example 1. The same parts will not be repeated here. Please refer to Figures 1-8 The pitch p of the shaftless spiral blade 9 gradually decreases from bottom to top. In order to ensure the sealing of the filtration, the lowest position of the solid part 81 is lower than the height of the upper surface of the sludge after the reduction is completed;

[0061] In the present invention, due to infiltration, the filtration effect is mainly manifested at the bottom end of the shaftless spiral blade 9. By gradually reducing the pitch p of the shaftless spiral blade 9 from bottom to top, the sludge driven by the shaftless spiral blade 9 can be squeezed more and more upwards during the process of the sludge turning upward when the shaftless spiral blade 9 rotates. The water in the sludge is further squeezed out through squeezing and enters the interior of the filtration tube 8, thereby increasing the sludge reduction effect.

[0062] The present invention also discloses a flocculation, pumping and reducing device for resource utilization of slag slurry, which comprises the following steps:

[0063] Step 1: The mud pump brings the mud and the matching flocculant into the inner side of the mud tank 1 through the inlet flange 5. The motor 19 drives the shaftless spiral blade 9 to rotate, which can play a stirring role and make the flocculant evenly distributed. The flocculants are polyacrylamide and polyaluminum chloride. Flocculation is a pre-treatment stage for mud reduction. It adjusts the electrical properties of mud particles or forms larger flocs through the effects of polymer bridging and charge patching. The increase in the particle size of sludge aggregates will lead to a decrease in the mud skin resistance, thereby increasing permeability.

[0064] Step 2: Connect the suction pipe 3 to the negative pressure equipment, and connect the pressure pipe 4 to the external blowing device. The negative pressure in the suction pipe 3 generates negative pressure in the suction filter pipe 8 and takes away the hydraulic pressure of the suction filter pipe 8. The pressure pipe 4 generates positive pressure, so that a high-pressure space is formed between the upper surface of the mud and the mud tank 1. One suction and one pressure increase the suction and dehydration effect.

[0065] Step 3: The motor 19 rotates again, and the sludge near the bottom end of the shaftless spiral piece 9 is replenished to the bottom end of the shaftless spiral piece 9 and mixed with the gas discharged from the air outlet nozzle 18 and then moves upward, forming a low-density area b with dense gaps near the suction tube 8, thereby increasing the permeability of the sludge near the suction tube 8. The high gaps of the sludge near the suction tube 8 can make the suction effect range pass through the low-density area b to a farther range, thereby causing the mud skin to turn upward while increasing the suction effect range;

[0066] Step 4: After the filtration is completed, the mud discharge bottom plate 11 is opened through the locking mechanism 10 to discharge the sludge.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flocculation, pumping, and reducing device for recycling slag slurry, comprising a slurry tank (1) connected to an inlet flange (5), characterized in that: A plurality of suction filter pipes (8) are evenly interspersed on the inner side of the mud tank (1); The outer side of the suction filter tube (8) is rotatably connected to a shaftless spiral sheet (9), and a gas outlet nozzle (18) is provided at the bottom end of the shaftless spiral sheet (9). The gas outlet nozzle (18) can discharge gas. When the shaftless spiral sheet (9) rotates, sludge near the bottom end of the shaftless spiral sheet (9) is replenished to the bottom end of the shaftless spiral sheet (9) and mixed with the gas discharged from the gas outlet nozzle (18) and then moves upward, forming a low-density area with dense gaps near the suction filter tube (8).

2. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 1 is characterized in that: The upper side of the suction filter tube (8) is a solid portion (81), the lower side is fixedly connected to a tubular grid (83), the outer side of the grid (83) is fixedly connected to a filter cloth (82), and the center of the suction filter tube (8) is fixedly connected to a suction pipe (84) capable of generating negative pressure, and the bottom end of the suction pipe (84) extends to the bottom of the suction filter tube (8).

3. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 1 or 2, characterized in that: The top of the mud tank (1) is fixedly connected to a protective frame (2), and the inner side of the bottom end of the mud tank (1) is rotatably connected to a mud unloading bottom plate (11) through a hinge. The bottom end of the mud tank (1) is opened and closed by a locking mechanism (10), and both sides of the bottom end of the mud tank (1) are arranged in a slope shape.

4. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 1 or 2, characterized in that: The top end of the suction filter tube (8) is fixedly connected to a suction tube (3), the suction tube (84) is communicated with the inner side of the suction tube (3), and the suction tube (3) can be connected to an external negative pressure device.

5. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 1 or 2, characterized in that: The top of the mud tank (1) is rotatably connected to a positioning plate (7), the inner side of the positioning plate (7) is fixedly connected to a connecting pipe (12), the bottom end of the connecting pipe (12) is fixedly connected to a shaftless spiral sheet (9), the inner side of the shaftless spiral sheet (9) is provided with a spiral channel, the spiral channel connects an air outlet nozzle (18) with the connecting pipe (12), and the top of the connecting pipe (12) is fixedly connected to a rotating disk (15).

6. The flocculation, pumping, and reduction device for resource utilization of slag slurry according to claim 5 is characterized in that: An air inlet cavity (17) is provided on the inner side of the top end of the turntable (15), and the air inlet cavity (17) is connected to the inner side of the connecting pipe (12) through a tubular passage. An air ring (13) is rotatably connected to the outer side of the top end of the turntable (15), and an air outlet cavity (16) is provided on the inner side of the air ring (13). The air outlet cavity (16) corresponds to the air inlet cavity (17), and the air outlet cavities (16) in the plurality of air rings (13) are connected to each other. The air ring (13) near the edge is connected to a pressure pipe (4), and the pressure pipe (4) can be connected to an external blowing device.

7. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 6 is characterized in that: The lower outer side of the turntable (15) is in the shape of a worm gear, the inner side of the protective frame (2) is rotatably connected to a worm (14), the outer side of the worm (14) is meshed with the lower side of the turntable (15), the inner side of the bottom end of the protective frame (2) is fixedly connected to a motor (19), the main shaft end of the motor (19) is fixedly connected to one end of the worm (14), and when the motor (19) rotates, it can drive the shaftless spiral piece (9) to rotate.

8. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 6 is characterized in that: The inner side of the top end of the mud tank (1) is connected to an air outlet pipe (6), and the air outlet pipe (6) is connected to the pressure pipe (4).

9. The flocculation, pressure reduction and decompression device for resource utilization of slag slurry according to claim 1 or 2, characterized in that: The pitch p of the shaftless spiral sheet (9) decreases gradually from bottom to top.

10. A flocculation, pumping and reducing device for resource utilization of slag slurry, characterized in that: The flocculation pressure reduction device according to claim 9 is used, wherein the steps are: Step 1: The mud pump pumps the mud and the flocculant in a matching ratio into the inner side of the mud tank (1) through the inlet flange (5), and the motor (19) drives the shaftless spiral blade (9) to rotate, which can play a stirring role and evenly distribute the flocculant; Step 2: connect the suction pipe (3) to the negative pressure device, connect the pressure pipe (4) to the external blowing device, the negative pressure in the suction pipe (3) generates negative pressure in the suction filter pipe (8) and takes away the hydraulic pressure of the suction filter pipe (8), and the pressure pipe (4) generates positive pressure, so that a high-pressure space is formed between the upper surface of the mud and the mud tank (1), one suction and one pressure, thereby increasing the suction and dehydration effect; Step 3: The motor (19) rotates again, and the sludge near the bottom end of the shaftless spiral blade (9) is replenished to the bottom end of the shaftless spiral blade (9) and mixed with the gas discharged from the air outlet nozzle (18) and then moves upward, forming a low-density area b with dense gaps near the suction filter tube (8), thereby increasing the permeability of the sludge near the suction filter tube (8). The high gaps of the sludge near the suction filter tube (8) can make the suction effect range pass through the low-density area b to a farther range, thereby causing the mud skin to turn upward while increasing the suction effect range; Step 4: After the filtration is completed, the mud discharge bottom plate (11) is opened through the locking mechanism (10) to discharge the sludge.

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