Horizontal flow type sedimentation device and sedimentation method

Abstract

The invention relates to the technical field of sedimentation tanks, in particular to a horizontal flow type sedimentation device and a sedimentation method.The horizontal flow type sedimentation device comprises a sedimentation tank, a drainage plate and a triangular weir are fixedly connected to the inner side of the sedimentation tank, an intercepting net is installed between the triangular weir and the sedimentation tank and inclines downwards, and a water baffle is fixedly connected to the upper end of the sedimentation tank; a water retaining plate is installed at the upper end of the drainage groove, a filter screen plate is installed at the lower end of the water retaining plate, the water retaining plate is in a U shape, a cleaning assembly used for cleaning broken ice is installed on the inner side of the filter screen plate, and an ice breaking assembly used for breaking ice is installed at the upper end of the water retaining plate. And residual dust flows out from the inner side of the discharging opening, and ice water can be filtered through the dust collecting net so that impurities can be intercepted.

Description

Technical Field

[0001] The present invention relates to the technical field of sedimentation tanks, and particularly to a horizontal flow sedimentation device and a sedimentation method. Background Art

[0002] A horizontal flow sedimentation tank is a common water treatment structure, and its structure is mainly divided into the following parts: Inlet area: After the raw water is dosed, mixed and flocculated, it flows into the inlet area and is evenly distributed to the sedimentation area as much as possible through the perforated wall; Sedimentation area: During the horizontal flow of the water, the flocs settle to the sludge area. During the horizontal flow of the water in the sedimentation area, the suspended solids in the water gradually sink to the bottom of the tank; Sludge area: The sedimented sludge accumulates in this area and is discharged regularly. The methods of sludge discharge include bottom sludge discharge in the shape of a hopper, sludge scraper discharge, siphon or sludge suction pump discharge, etc.; Outlet area: The clarified water after sedimentation converges evenly to the outlet area. An outlet weir (sawtooth-shaped weir top or flat top weir) is provided at the end of the outlet area to make the outlet water flow into the collecting trough evenly; Buffer layer: When non-mechanical sludge discharge is used, the height of the buffer layer is 0.5 m. When mechanical sludge discharge is used, the upper edge of the buffer layer should be 0.3 m higher than the sludge scraper; Sludge discharge device: A sludge discharge device is provided at the bottom of the horizontal flow sedimentation tank for regularly discharging the accumulated sludge; Baffle: Baffles should be provided at both the inlet and outlet, 0.1 - 0.15 m above the water surface. The submerged depth of the inlet baffle should not be less than 0.25 m, generally 0.5 - 1.0 m; The submerged depth of the outlet baffle is generally 0.3 - 0.4 m; Rectifying facilities: Rectifying facilities should be provided in both the inlet and outlet areas of the sedimentation tank, and slag scraping facilities should also be available; Outlet weir: A right-angled sawtooth-shaped water retaining plate is generally used. The depth of the teeth of the weir is usually 50 mm, and the tooth pitch is about 200 mm. The normal water surface should be at 1 / 2 of the tooth height; When treating wastewater using a horizontal flow sedimentation tank under cold conditions, due to the large sedimentation area of the sedimentation tank, the ice on the surface of the sewage will accumulate at the sawtooth-shaped water retaining plate along with the water flow, blocking the water retaining plate and preventing the treated sewage after sedimentation. Directly cleaning the ice on the surface of the sedimentation tank will also remove the impurities that have not sedimented in the ice. After the ice melts, it will still cause pollution. For this reason, we propose a horizontal flow sedimentation device and a sedimentation method. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies in the background art and propose a horizontal flow sedimentation device and a sedimentation method.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: a horizontal flow sedimentation device, including a sedimentation tank, a hydrophobic plate and a triangular weir are fixedly connected inside the sedimentation tank, an interception net is installed between the triangular weir and the sedimentation tank, the interception net is inclined downward, a water retaining plate is fixedly connected to the upper end of the sedimentation tank, a filter mesh plate is installed at the lower end of the water retaining plate, the water retaining plate is U-shaped, a cleaning component for cleaning broken ice is installed inside the filter mesh plate, and an ice breaking component for breaking ice is installed at the upper end of the water retaining plate.

[0005] Preferably, a rack is slidably connected inside the support column, the cleaning component includes a lifting cylinder fixedly connected to the inside of the filter mesh plate, the lifting cylinder is inclined downward, a heating plate is fixedly connected to the upper end of the lifting cylinder, a first mounting frame is installed at the rear end of the lifting cylinder, a first motor is fixedly connected to the upper end of the first mounting frame, a screw conveyor is fixedly connected to the output end of the first motor, a feeding port is opened at the upper end of the lifting cylinder, the feeding port is located in front of the water retaining plate, and a discharging port is installed at the lower end of the lifting cylinder.

[0006] Preferably, a water leakage net is installed at the lower end of the lifting cylinder, a drainage groove is fixedly connected to the lower end of the lifting cylinder, the drainage groove is L-shaped, the drainage groove shields the lower end of the water leakage net, and a dust collecting net is fixedly connected to the front end of the drainage groove.

[0007] Preferably, the ice breaking component includes a mounting plate fixedly connected to the upper end of the water retaining plate, an elliptical rail is slidably connected to the front end of the mounting plate, a striking rod is fixedly connected to the front end of the elliptical rail, and a crushing cone is fixedly connected to the lower end of the striking rod.

[0008] Preferably, a second mounting frame is fixedly connected to the upper end of the mounting plate, a second motor is fixedly connected to the lower end of the second mounting frame, a connecting shaft is fixedly connected to the front end of the second motor, the connecting shaft is rotatably connected to the mounting plate, a swing rod is fixedly connected to the outside of the connecting shaft, a rotating block is fixedly connected to the front end of the swing rod, the rotating block is slidably connected to the inside of the elliptical rail, a clamping frame is fixedly connected to the front end of the mounting plate, and sliding rods are fixedly connected to both sides of the elliptical rail, and the sliding rods are slidably connected to the inside of the clamping frame.

[0009] Preferably, two groups of sliders are slidably connected to the upper end of the water retaining plate, two groups of toothed plates are fixedly connected to the front end of the water retaining plate, a gear is engaged with the upper end of the toothed plate, a rotating rod is fixedly connected to the inside of the gear, the rotating rod is rotatably connected to the slider, and ice breaking pieces are fixedly connected to the outside of the rotating rod.

[0010] Preferably, a push rod is fixedly connected to the front end of the sliding rod, a rotating shaft is fixedly connected to the upper end of the slider, and the rotating shaft is rotatably connected to the push rod.

[0011] A precipitation method for a horizontal flow sedimentation device, comprising: Step 1: Add a flocculant into the sedimentation tank. The suspended substances in the water gradually sink to the bottom of the tank. The water baffle can block the broken ice, and the filter mesh plate can facilitate the flow of unfrozen water. Start the first motor to drive the auger to rotate, lift the broken ice through the lifting cylinder, heat the lifting cylinder with the heating plate to melt the broken ice. The melted ice will flow to the inside of the drainage trough through the water leakage net, and the remaining dust will flow out from the inside of the discharge port; Step 2: Start the second motor to drive the connecting shaft to rotate, and then drive the swing rod to rotate, so that the elliptical rail moves back and forth under the action of the clamping frame and the sliding rod, and then drive the striking rod to move back and forth. Use the crushing cone to stir the broken ice at the upper end of the feed port to facilitate the broken ice to enter the inside of the lifting cylinder through the feed port; Step 3: The movement of the elliptical rail will drive the push rod to move, and then drive the slider to slide on the water baffle by using the rotating shaft, and then drive the rotating rod to move. At the same time, the toothed plate can drive the gear to rotate, and then drive the rotating rod to rotate, so that the ice-breaking piece breaks the ice at the front end of the water baffle to facilitate the movement and collection of ice.

[0012] Compared with the prior art, the present invention provides a horizontal flow sedimentation device and a precipitation method, having the following beneficial effects: 1. For this horizontal flow sedimentation device and precipitation method, the water baffle can block the broken ice, and the filter mesh plate can facilitate the flow of unfrozen water to prevent the ice cubes from blocking the triangular weir. The first motor can drive the auger. The ice cubes blocking the front end of the water baffle will enter the inside of the lifting cylinder through the feed port, and the auger will lift the ice cubes. The heating plate heats the lifting cylinder to melt the broken ice. The melted ice will flow to the inside of the drainage trough through the water leakage net, and the remaining dust will flow out from the inside of the discharge port. And the impurities can be intercepted by filtering the ice water through the dust collection net.

[0013] 2. For this horizontal flow sedimentation device and precipitation method, the second motor can drive the connecting shaft to rotate and then drive the swing rod to rotate. The clamping frame can clamp the sliding rod, so that the elliptical rail moves back and forth at the front end of the mounting plate, and then drives the striking rod to move back and forth. Use the crushing cone to stir the broken ice at the upper end of the feed port to prevent the ice cubes from connecting together again and facilitate the broken ice to enter the inside of the lifting cylinder through the feed port.

[0014] 3. For this horizontal flow sedimentation device and precipitation method, the movement of the sliding rod will drive the push rod to move, and then drive the slider to slide on the water baffle by using the rotating shaft, and then drive the rotating rod to move. At the same time, the toothed plate can drive the gear to rotate, and then drive the rotating rod to rotate, so that the ice-breaking piece breaks the ice at the front end of the water baffle to facilitate the ice cubes to gather at the upper end of the feed port. Description of the Drawings

[0015] Figure 1Schematic diagram of the overall structure of the present invention; Figure 2 Cross-sectional view of the present invention; Figure 3 Schematic diagram of a partial structure of the present invention Figure 1 ; Figure 4 Schematic diagram of a partial structure of the present invention Figure 2 ; Figure 5 Schematic diagram of a partial structure of the present invention Figure 3 ; Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of part A in the present invention; Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure of part B in the present invention.

[0016] In the figure: 1, sedimentation tank; 2, hydrophobic plate; 3, triangular weir; 4, water baffle; 5, filter mesh plate; 6, cleaning assembly; 61, lifting cylinder; 62, discharge port; 63, first mounting frame; 64, first motor; 65, heating plate; 66, feed port; 67, auger; 68, water leakage net; 69, drainage groove; 610, dust collection net; 7, ice breaking assembly; 71, mounting plate; 72, second mounting frame; 73, second motor; 74, connecting shaft; 75, swing rod; 76, elliptical track; 77, clamping frame; 78, sliding rod; 79, striking rod; 710, crushing cone; 711, push rod; 712, slider; 713, rotating shaft; 714, gear; 715, rotating rod; 716, ice breaking piece; 717, toothed plate; 8, interception net. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] Please refer to Figure 1 - Figure 7 , a horizontal flow sedimentation device, including a sedimentation tank 1, a hydrophobic plate 2 and a triangular weir 3 are fixedly connected to the inner side of the sedimentation tank 1, an interception net 8 is installed between the triangular weir 3 and the sedimentation tank 1, the interception net 8 is inclined downward, a water baffle 4 is fixedly connected to the upper end of the sedimentation tank 1, a filter mesh plate 5 is installed at the lower end of the water baffle 4, the water baffle 4 is U-shaped, a cleaning assembly 6 for cleaning broken ice is installed inside the filter mesh plate 5, and an ice breaking assembly 7 for breaking ice is installed at the upper end of the water baffle 4.

[0019] In this embodiment, a rack is slidably connected to the inner side of the support column. The cleaning assembly 6 includes a lifting cylinder 61 fixedly connected to the inner side of the filter screen plate 5. The lifting cylinder 61 is inclined downward. A heating plate 65 is fixedly connected to the upper end of the lifting cylinder 61. A first mounting bracket 63 is installed at the rear end of the lifting cylinder 61. A first motor 64 is fixedly connected to the upper end of the first mounting bracket 63. A screw conveyor 67 is fixedly connected to the output end of the first motor 64. A feed inlet 66 is opened at the upper end of the lifting cylinder 61. The feed inlet 66 is located in front of the water baffle 4. A discharge port 62 is installed at the lower end of the lifting cylinder 61.

[0020] Specifically, the ice cubes can enter the inside of the lifting cylinder 61 conveniently through the feed inlet 66. The screw conveyor 67 can be used to drive the ice cubes to rise. The heating plate 65 can be used to heat the lifting cylinder 61 so that the ice cubes can melt, facilitating the cleaning of the ice cubes.

[0021] In this embodiment, a water leakage net 68 is installed at the lower end of the lifting cylinder 61. A drainage groove 69 is fixedly connected to the lower end of the lifting cylinder 61. The drainage groove 69 is L-shaped. The drainage groove 69 covers the lower end of the water leakage net 68. A dust collection net 610 is fixedly connected to the front end of the drainage groove 69.

[0022] Specifically, the water leakage net 68 can facilitate the discharge of the melted ice water. The drainage groove 69 can be used to drain the ice water. The dust collection net 610 can filter the ice water, facilitating the throttling of the sediment inside the ice water.

[0023] In this embodiment, the ice breaking assembly 7 includes a mounting plate 71 fixedly connected to the upper end of the water baffle 4. An elliptical rail 76 is slidably connected to the front end of the mounting plate 71. A striking rod 79 is fixedly connected to the front end of the elliptical rail 76. A crushing cone 710 is fixedly connected to the lower end of the striking rod 79.

[0024] Specifically, the elliptical rail 76 can drive the striking rod 79 to move, and then the crushing cone 710 can be used to stir the ice cubes to prevent the ice cubes from clumping again.

[0025] In this embodiment, a second mounting bracket 72 is fixedly connected to the upper end of the mounting plate 71. A second motor 73 is fixedly connected to the lower end of the second mounting bracket 72. A connecting shaft 74 is fixedly connected to the front end of the second motor 73. The connecting shaft 74 is rotatably connected to the mounting plate 71. A swing rod 75 is fixedly connected to the outer side of the connecting shaft 74. A rotating block is fixedly connected to the front end of the swing rod 75. The rotating block is slidably connected to the inside of the elliptical rail 76. A clamping frame 77 is fixedly connected to the front end of the mounting plate 71. Slide rods 78 are fixedly connected to both sides of the elliptical rail 76. The slide rods 78 are slidably connected to the inside of the clamping frame 77.

[0026] Specifically, the second motor 73 can drive the connecting shaft 74 to rotate, thereby driving the swing rod 75 to swing, and then driving the elliptical rail 76 to move back and forth. The slider 78 can be clamped by the clamping frame 77, enabling the elliptical rail 76 to move back and forth.

[0027] In this embodiment, two groups of sliders 712 are slidably connected to the upper end of the water baffle 4. Two groups of toothed plates 717 are fixedly connected to the front end of the water baffle 4. A gear 714 is meshed with the upper end of the toothed plate 717. A rotating rod 715 is fixedly connected to the inner side of the gear 714. The rotating rod 715 is rotatably connected to the slider 712. An ice-breaking piece 716 is fixedly connected to the outer side of the rotating rod 715.

[0028] Specifically, the sliding of the slider 712 can drive the rotating rod 715 to move. The toothed plate 717 can be used to make the gear 714 rotate, and then drive the rotating rod 715 to rotate, enabling the ice-breaking piece 716 to stir the ice cubes, facilitating the breaking of the ice cubes.

[0029] In this embodiment, a push rod 711 is fixedly connected to the front end of the sliding rod 78. A rotating shaft 713 is fixedly connected to the upper end of the slider 712. The rotating shaft 713 is rotatably connected to the push rod 711.

[0030] Specifically, the sliding rod 78 can be used to drive the push rod 711 to move. The rotating shaft 713 can facilitate the rotation of the push rod 711 on the slider 712, facilitating the push rod 711 to push the slider 712 to move.

[0031] A sedimentation method for a horizontal flow sedimentation device, comprising: Step 1: Add a flocculant into the sedimentation tank 1. The suspended substances in the water gradually sink to the bottom of the tank. The water baffle 4 can block the broken ice, and the filter mesh plate 5 can facilitate the flow of the unfrozen water. Start the first motor 64 to drive the auger 67 to rotate, lift the broken ice through the lifting cylinder 61, heat the lifting cylinder 61 with the heating plate 65 to melt the broken ice, and the melted ice will flow into the inner side of the drainage trough 69 through the water leakage net 68, and the remaining dust will flow out from the inner side of the discharge port 62; Step 2: Start the second motor 73 to drive the connecting shaft 74 to rotate and then drive the swing rod 75 to rotate, so that the elliptical rail 76 moves back and forth under the action of the clamping frame 77 and the sliding rod 78, and then drive the striking rod 79 to move back and forth, and use the crushing cone 710 to stir the broken ice at the upper end of the feed port 66, facilitating the broken ice to enter the inner side of the lifting cylinder 61 through the feed port 66; Step 3: The movement of the elliptical rail 76 will drive the push rod 711 to move, and then drive the slider 712 to slide on the water baffle 4 through the rotating shaft 713, and then drive the rotating rod 715 to move. At the same time, the toothed plate 717 can drive the gear 714 to rotate, and then drive the rotating rod 715 to rotate, so that the ice-breaking piece 716 breaks the ice at the front end of the water baffle 4, facilitating the movement and collection of the ice.

[0032] It should be noted that during use, the water baffle 4 can block the broken ice, the filter screen plate 5 can facilitate the flow of unfrozen water, prevent the ice cubes from blocking the triangular weir 3, the first motor 64 can drive the auger 67, and the ice cubes blocked at the front end of the water baffle 4 will enter the inside of the lifting cylinder 61 through the feed inlet 66 and be lifted by the auger 67. The heating plate 65 heats the lifting cylinder 61 to melt the broken ice. The melted ice will flow into the inside of the drainage trough 69 through the water leakage net 68, enabling the remaining dust to flow out from the inside of the discharge port 62. And the impurities can be intercepted by filtering the ice water through the dust collection net 610. Start the second motor 73 to drive the connecting shaft 74 to rotate, and then drive the swing rod 75 to rotate, so that the elliptical rail 76 moves back and forth under the action of the clamping frame 77 and the sliding rod 78, and then drive the striking rod 79 to move back and forth. Use the crushing cone 710 to stir the broken ice at the upper end of the feed inlet 66 to facilitate the broken ice to enter the inside of the lifting cylinder 61 through the feed inlet 66. The movement of the sliding rod 78 will drive the push rod 711 to move, and then drive the slider 712 to slide on the water baffle 4 through the rotating shaft 713, and then drive the rotating rod 715 to move. At the same time, the toothed plate 717 can drive the gear 714 to rotate, and then drive the rotating rod 715 to rotate, so that the ice-breaking piece 716 breaks the ice cubes at the front end of the water baffle 4, facilitating the ice cubes to gather at the upper end of the feed inlet 66.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal flow sedimentation device, comprising a sedimentation tank (1), characterized in that, A hydrophobic plate (2) and a triangular weir (3) are fixedly connected to the inner side of the sedimentation tank (1). An intercepting net (8) is installed between the triangular weir (3) and the sedimentation tank (1). The intercepting net (8) is inclined downward. A water retaining plate (4) is fixedly connected to the upper end of the sedimentation tank (1). A filter screen plate (5) is installed at the lower end of the water retaining plate (4). The water retaining plate (4) is U-shaped. A cleaning component (6) for cleaning broken ice is installed inside the filter screen plate (5). An ice breaking component (7) for breaking ice is installed at the upper end of the water retaining plate (4).

2. The horizontal flow sedimentation device according to claim 1, wherein: The cleaning component (6) includes a lifting cylinder (61) fixedly connected to the inner side of the filter screen plate (5). The lifting cylinder (61) is inclined downward. A heating plate (65) is fixedly connected to the upper end of the lifting cylinder (61). A first mounting frame (63) is installed at the rear end of the lifting cylinder (61). A first motor (64) is fixedly connected to the upper end of the first mounting frame (63). A screw conveyor (67) is fixedly connected to the output end of the first motor (64). A feed inlet (66) is opened at the upper end of the lifting cylinder (61). The feed inlet (66) is located at the front end of the water retaining plate (4). A discharge outlet (62) is installed at the lower end of the lifting cylinder (61).

3. The horizontal flow sedimentation device according to claim 2, characterized in that: A leaky net (68) is installed at the lower end of the lifting cylinder (61). A drainage trough (69) is fixedly connected to the lower end of the lifting cylinder (61). The drainage trough (69) is L-shaped. The drainage trough (69) shields the lower end of the leaky net (68). A dust collecting net (610) is fixedly connected to the front end of the drainage trough (69).

4. A horizontal flow sedimentation device according to claim 1, characterized in that: The ice breaking component (7) includes a mounting plate (71) fixedly connected to the upper end of the water retaining plate (4). An elliptical rail (76) is slidably connected to the front end of the mounting plate (71). A striking rod (79) is fixedly connected to the front end of the elliptical rail (76). A breaking cone (710) is fixedly connected to the lower end of the striking rod (79).

5. The horizontal flow sedimentation device according to claim 4, characterized in that: A second mounting frame (72) is fixedly connected to the upper end of the mounting plate (71). A second motor (73) is fixedly connected to the lower end of the second mounting frame (72). A connecting shaft (74) is fixedly connected to the front end of the second motor (73). The connecting shaft (74) is rotatably connected to the mounting plate (71). A swing rod (75) is fixedly connected to the outer side of the connecting shaft (74). A rotating block is fixedly connected to the front end of the swing rod (75). The rotating block is slidably connected to the inside of the elliptical rail (76). A clamping frame (77) is fixedly connected to the front end of the mounting plate (71). Slide rods (78) are fixedly connected to both sides of the elliptical rail (76). The slide rods (78) are slidably connected to the inside of the clamping frame (77).

6. The horizontal flow sedimentation device according to claim 5, characterized in that: Two sets of sliders (712) are slidably connected to the upper end of the water baffle (4). Two sets of toothed plates (717) are fixedly connected to the front end of the water baffle (4). A gear (714) is engaged with the upper end of the toothed plate (717). A rotating rod (715) is fixedly connected to the inner side of the gear (714). The rotating rod (715) is rotatably connected to the slider (712). An ice-breaking piece (716) is fixedly connected to the outer side of the rotating rod (715).

7. A horizontal flow sedimentation device according to claim 6, characterized in that: A push rod (711) is fixedly connected to the front end of the sliding rod (78). A rotating shaft (713) is fixedly connected to the upper end of the slider (712). The rotating shaft (713) is rotatably connected to the push rod (711).

8. A precipitation method for a horizontal flow sedimentation device, applied to a horizontal flow sedimentation device according to any one of claims 1-7, characterized in that, Including: Step 1: Add a flocculant into the sedimentation tank (1). Suspended matters in the water gradually sink to the bottom of the tank. The water baffle (4) can block the broken ice, and the filter mesh plate (5) facilitates the flow of unfrozen water. Start the first motor (64) to drive the auger (67) to rotate, and lift the broken ice through the lifting cylinder (61). Use the heating plate (65) to heat the lifting cylinder (61) to melt the broken ice. The melted ice will flow into the inner side of the drainage trough (69) through the water leakage net (68), and the remaining dust will flow out from the inner side of the discharge port (62). Step 2: Start the second motor (73) to drive the connecting shaft (74) to rotate, and then drive the swing rod (75) to rotate, so that the elliptical rail (76) moves back and forth under the action of the clamping frame (77) and the sliding rod (78), and then drive the striking rod (79) to move back and forth. Use the crushing cone (710) to stir the broken ice at the upper end of the feed port (66) to facilitate the broken ice to enter the inner side of the lifting cylinder (61) through the feed port (66). Step 3: The movement of the elliptical rail (76) will drive the push rod (711) to move, and then drive the slider (712) to slide on the water baffle (4) through the rotating shaft (713), and then drive the rotating rod (715) to move. At the same time, the toothed plate (717) can drive the gear (714) to rotate, and then drive the rotating rod (715) to rotate, so that the ice-breaking piece (716) breaks the ice at the front end of the water baffle (4) to facilitate the movement and collection of the ice.

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