A cyclone grit removal device for sewage treatment

Abstract

The utility model discloses a cyclone sand setting device for sewage treatment relates to sewage treatment technical field. The utility model discloses a cyclone sand setting device for sewage treatment, including the processing jar, the bottom fixed connection of processing jar has the sand bowl, the right -hand member fixed connection of processing jar top has the water inlet pipeline, the left -hand member fixed connection of processing jar top has the drain pipeline, the inside setting of sand bowl has the sand collection subassembly, the center end of processing jar top is provided with cyclone sand setting mechanism, the left -hand member of drain pipeline is provided with the filter component. The utility model discloses through with the sand collection subassembly suit into the sand bowl in and adopt the way connection of thread, through the control cyclone sand setting mechanism drive the sewage in processing jar presents helical annular flow, and sand grain is thrown to the pool wall under the centrifugal force and sinks into the sand bowl, and organic matter then along with the water flow along the drain pipeline and exports, after ending, can through taking out sand collection subassembly, can to the sand grain concentrated treatment of deposition.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a vortex grit removal device for wastewater treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering. Due to the rapid development of heavy and light industries, the amount of wastewater generated during production is increasing. Direct discharge of wastewater will pollute the environment and drinking water, thus affecting public health. Desulfurization and denitrification wastewater needs to undergo neutralization, sedimentation, flocculation, clarification separation, and sludge dewatering to ultimately meet discharge standards or for reuse. In wastewater treatment, cyclone grit chambers are commonly used to remove impurities from the wastewater. However, existing technologies have the following problems: In the operation of existing cyclone grit removal devices, during the sand discharge process, the silt is directly discharged with the water flow, which easily leads to water waste. Secondly, organic matter that is lighter than silt in the water will also be discharged with the water flow. The lack of a filtration structure results in the incomplete removal of impurities in the wastewater. Utility Model Content

[0003] The main purpose of this utility model is to provide a cyclone grit removal device for sewage treatment, which can effectively solve the problems of silt being discharged directly with the water flow and the lack of a filtration structure, resulting in incomplete removal of impurities in sewage.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cyclone grit chamber for wastewater treatment includes a treatment tank. Several fixed supports are fixedly connected in a circular array to the bottom of the outer wall of the treatment tank. A sand hopper is fixedly connected to the bottom of the treatment tank. An inlet pipe is fixedly connected to the right end of the top of the treatment tank, and a drain pipe is fixedly connected to the left end of the top of the treatment tank. A sand collection assembly is installed inside the sand hopper. A cyclone grit chamber is installed at the center end of the top of the treatment tank, and the bottom of the outer wall of the cyclone grit chamber extends into the interior of the treatment tank. A filter assembly is installed at the left end of the drain pipe, and a discharge pipe is installed at the left end of the filter assembly.

[0005] Preferably, the outer wall of the sand hopper is provided with a threaded groove, the sand collecting assembly includes a threaded cover and a sleeve, the lower end of the sleeve is fixedly connected to the inside of the threaded cover, the outer wall of the sleeve is inserted into the inside of the sand hopper, the inner wall of the threaded cover is threadedly connected to the outer wall of the sand hopper, and the outer wall of the sleeve is provided with a plurality of connecting holes in an equidistant array.

[0006] Preferably, the cyclone sedimentation mechanism includes a centrifugal motor, a rotating rod, a spiral blade, a connecting rod, a scraper, and two silicone scraper strips. The output shaft of the centrifugal motor is fixedly connected to the upper end of the rotating rod. The inner wall of the spiral blade is fixedly connected to the lower side of the outer wall of the rotating rod. The upper end of the connecting rod is fixedly connected to the lower end of the rotating rod. The scraper is U-shaped. The lower end of the connecting rod is fixedly connected to the middle of the scraper. The inner walls of the two silicone scraper strips are respectively fixedly connected to the outer walls of the left and right ends of the scraper.

[0007] Preferably, the centrifugal motor is externally fixedly connected to the top of the processing tank, and the outer wall of the silicone scraper overlaps with the lower side of the inner wall of the processing tank.

[0008] Preferably, the filter assembly includes a filter housing, a mounting frame, a filter screen, a pull-out plate, two guide rails, and two sliders. The filter housing is made of rust-proof iron. The outer wall of the filter screen is fixedly connected to the inner wall of the mounting frame. The bottom of the pull-out plate is fixedly connected to the top of the mounting frame. The top of the filter housing has an installation opening that matches the mounting frame. The outer walls of the two guide rails are respectively fixedly connected to the front and rear ends of the inner wall of the filter housing near the installation opening. One end of each of the two sliders is respectively fixedly connected to the front and rear ends of the mounting frame.

[0009] Preferably, the outer wall of the slider is slidably connected to the inner wall of the guide rail, the left end of the drain pipe is fixedly connected to the right end of the filter housing, and grooves are respectively provided on the left and right sides of the top of the filter housing near the installation port.

[0010] Preferably, a sealing gasket is fixedly connected to the top of the outer wall of the mounting frame near the slider, the outer wall of the sealing gasket overlaps with the inner wall of the mounting opening, and magnet blocks are fixedly connected to the bottom of the pull-out plate near the left and right sides of the mounting frame, respectively.

[0011] Preferably, the outer wall of the magnet block is magnetically connected to the inner wall of the groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a vortex grit settling device for sewage treatment. It employs a treatment tank, a fixed support, a grit hopper, an inlet pipe, a drain pipe, a grit collection assembly, and a vortex grit settling mechanism. The grit collection assembly is fitted into the grit hopper and connected by threads. By controlling the vortex grit settling mechanism, the sewage in the treatment tank is driven into a spiral circulation. Grit particles are thrown against the tank wall and settle into the grit hopper under centrifugal force, while organic matter is discharged along the drain pipe with the water flow. After completion, the grit collection assembly can be removed for centralized treatment of the settled grit particles. This solves the problem of existing vortex grit settling devices where silt is directly discharged with the water flow during the grit removal process, easily causing water waste. It achieves the beneficial effect of collecting and settling grit particles, avoiding water waste.

[0013] 2. This utility model provides a cyclone grit removal device for sewage treatment. It adopts the cooperation between a treatment tank, a drainage pipe, a filter assembly, and a discharge pipe. By installing the filter assembly between the drainage pipe and the discharge pipe, the filter screen is installed in the filter housing by magnetic attraction. The filter screen in the filter assembly filters the organic matter discharged with the water flow. This solves the problem that organic matter lighter than silt will be discharged with the water flow. The lack of a filter structure causes the impurities in the sewage to be not completely removed, thus achieving the beneficial effect of improving the removal effect of impurities in sewage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the cyclone grit removal device for wastewater treatment according to this utility model; Figure 2 This is a three-dimensional cross-sectional view of the processing tank of this utility model; Figure 3 This is a three-dimensional structural diagram of the vortex sedimentation mechanism of this utility model; Figure 4 This is a three-dimensional structural diagram of the filter assembly of this utility model; Figure 5 This is a partially enlarged schematic diagram of the A-dimensional structure of this utility model.

[0015] In the diagram: 1. Treatment tank; 2. Fixed bracket; 3. Sand hopper; 301. Threaded groove; 4. Water inlet pipe; 5. Drainage pipe; 6. Sand collection assembly; 61. Threaded cover; 62. Sleeve; 620. Connecting hole; 7. Cyclone sand settling mechanism; 71. Centrifugal motor; 72. Rotating rod; 73. Spiral blade; 74. Connecting rod; 75. Scraper; 76. Silicone scraper; 8. Filter assembly; 81. Filter housing; 810. Mounting port; 811. Groove; 82. Mounting frame; 821. Sealing gasket; 83. Filter screen; 84. Pull-out plate; 841. Magnet block; 85. Guide rail; 86. Slider; 9. Discharge pipe. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1 As shown, a vortex grit removal device for sewage treatment includes a treatment tank 1. Several fixed supports 2 are fixedly connected in a ring array to the bottom of the outer wall of the treatment tank 1. A sand hopper 3 is fixedly connected to the bottom of the treatment tank 1. A water inlet pipe 4 is fixedly connected to the right end of the top of the treatment tank 1. A drain pipe 5 is fixedly connected to the left end of the top of the treatment tank 1. A sand collection component 6 is provided inside the sand hopper 3. A vortex grit removal mechanism 7 is provided at the center end of the top of the treatment tank 1, and the bottom of the outer wall of the vortex grit removal mechanism 7 extends into the interior of the treatment tank 1. A filter component 8 is provided at the left end of the drain pipe 5, and a discharge pipe 9 is provided at the left end of the filter component 8. The system consists of a treatment tank 1, a fixed support 2, a sand hopper 3, an inlet pipe 4, a drain pipe 5, a sand collection assembly 6, a vortex sand settling mechanism 7, a filter assembly 8, and a discharge pipe 9. Through the coordinated operation of the treatment tank 1 and the vortex sand settling mechanism 7, a spiral circulation is formed. Under the action of centrifugal force, the sand particles are thrown towards the tank wall and sink into the sand hopper 3. The organic matter is discharged from the drain pipe 5 with the water flow. The organic matter in the sewage can be filtered through the filter assembly 8 before being discharged.

[0018] like Figure 2 As shown, this utility model provides a cyclone sedimentation device for sewage treatment: the outer wall of the sand hopper 3 is provided with a threaded groove 301, the sand collection component 6 includes a threaded cover 61 and a sleeve 62, the lower end of the sleeve 62 is fixedly connected to the inside of the threaded cover 61, the outer wall of the sleeve 62 is inserted into the inside of the sand hopper 3, the inner wall of the threaded cover 61 is threadedly connected to the outer wall of the sand hopper 3, and the outer wall of the sleeve 62 is provided with a plurality of connecting holes 620 equidistantly arranged. The sleeve 62 is inserted into the sand hopper 3, and the sand hopper 3 and the sand collection component 6 are fixed together by means of threads, so that the sand particles settled by cyclone sedimentation are collected in the sleeve 62.

[0019] like Figure 3As shown, this utility model provides a cyclone grit removal device for sewage treatment: the cyclone grit removal mechanism 7 includes a centrifugal motor 71, a rotating rod 72, a spiral blade 73, a connecting rod 74, a scraper 75, and two silicone scraper strips 76. The output shaft of the centrifugal motor 71 is fixedly connected to the upper end of the rotating rod 72. The inner wall of the spiral blade 73 is fixedly connected to the lower side of the outer wall of the rotating rod 72. The upper end of the connecting rod 74 is fixedly connected to the lower end of the rotating rod 72. The centrifugal motor 71 drives the spiral blade 73 to rotate through the rotating rod 72, so that the sewage can circulate in a spiral shape, thus treating the sewage. The sand particles are transported into the sand hopper 3 under the action of centrifugation. The scraper 75 is U-shaped. The lower end of the connecting rod 74 is fixedly connected to the middle of the scraper 75. The inner walls of the two silicone scraper strips 76 are fixedly connected to the outer walls of the left and right ends of the scraper 75, respectively. The centrifugal motor 71 is fixedly connected to the top of the treatment tank 1. The outer wall of the silicone scraper strip 76 overlaps with the lower side of the inner wall of the treatment tank 1. When the rotating rod 72 rotates, it drives the scraper 75 to rotate along the sedimentation area on the lower side of the treatment tank 1, so that the silicone scraper strip 76 scrapes off the sand particles remaining on the surface of the tank wall, thereby improving the sand settling effect.

[0020] like Figure 4 As shown, this utility model provides a cyclone grit removal device for sewage treatment: the filter assembly 8 includes a filter housing 81, a mounting frame 82, a filter screen 83, a pull-out plate 84, two guide rails 85, and two sliders 86. The filter housing 81 is made of rust-proof iron. The outer wall of the filter screen 83 is fixedly connected to the inner wall of the mounting frame 82. The bottom of the pull-out plate 84 is fixedly connected to the top of the mounting frame 82. The top of the filter housing 81 has an installation opening 810 that matches the mounting frame 82. The outer walls of the two guide rails 85 are respectively fixedly connected to the inner wall of the filter housing 81. The inner wall of the filter housing 81 is near the front and rear ends of the mounting port 810. One end of each of the two sliders 86 is fixedly connected to the front and rear ends of the mounting frame 82. The outer wall of the sliders 86 is slidably connected to the inner wall of the guide rail 85. The mounting frame 82 is inserted into the filter housing 81 from top to bottom along the mounting port 810. The sliders 86 slide along the guide rail 85 to further limit the installation position of the mounting frame 82. The left end of the drain pipe 5 is fixedly connected to the right end of the filter housing 81. Grooves 811 are respectively provided on the left and right sides of the top of the filter housing 81 near the mounting port 810.

[0021] like Figure 5As shown, this utility model provides a cyclone grit removal device for sewage treatment: a sealing gasket 821 is fixedly connected to the top of the outer wall of the mounting frame 82 near the top of the slider 86. The outer wall of the sealing gasket 821 overlaps with the inner wall of the mounting port 810. The sealing gasket 821 is pressed and adhered to the inner wall of the mounting port 810, further ensuring the sealing between the mounting frame 82 and the filter housing 81 and preventing water leakage. Magnet blocks 841 are fixedly connected to the bottom of the pull plate 84 near the left and right sides of the mounting frame 82. The outer wall of the magnet block 841 is magnetically connected to the inner wall of the groove 811. The pull plate 84 is magnetically fixed to the filter housing 81 by the magnet blocks 841, improving the stability of the filter screen 83 installation.

[0022] The working principle of this vortex grit chamber device for sewage treatment will be explained in detail below.

[0023] like Figure 1-5 As shown, when treating desulfurization and denitrification wastewater with grit, the inlet pipe 4 is first connected to the wastewater pipe via a flange. The sleeve 62 is inserted into the grit hopper 3 from bottom to top, and the threaded cap 61 is screwed onto the grit hopper 3. Then, the mounting frame 82 with the filter screen 83 is inserted into the filter housing 81 from top to bottom along the mounting port 810. The slider 86 on the outer wall of the filter housing 81 slides downward along the guide rail 85 to the bottom, so that the sealing gasket 821 is pressed against the inner wall of the mounting port 810, increasing the sealing between the mounting frame 82 and the mounting port 810. The magnet 841 is snapped and magnetically attracted inside the groove 811, fixing the filter screen 83 inside the filter housing 81. The vortex grit settling mechanism is then activated. 7. During operation, the output shaft of the centrifugal motor 71 drives the spiral blades 73 to rotate via the rotating rod 72. Wastewater flows into the sedimentation zone below the treatment tank 1 through the inlet pipe 4. The spiral blades 73 rotate to form a spiral circulation, causing the sand particles in the wastewater to be thrown towards the tank wall and settle into the sleeve 62 under the action of centrifugal force. At the same time, the silicone scraper 76 on the scraper 75 scrapes off the sand particles or organic matter adhering to the tank wall of the treatment tank 1. The organic matter in the wastewater is discharged into the filter housing 81 through the drain pipe 5 with the water flow. The filter screen 83 filters the organic matter and then discharges it through the discharge pipe 9, further improving the thorough removal of impurities in the wastewater. After the sedimentation is completed, the sand particles inside the sleeve 62 can be cleaned out by removing the sleeve 62.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cyclone grit chamber for wastewater treatment, comprising a treatment tank (1), characterized in that: The bottom of the outer wall of the treatment tank (1) is fixedly connected with several fixed supports (2) in a ring array. The bottom of the treatment tank (1) is fixedly connected with a sand hopper (3). The right end of the top of the treatment tank (1) is fixedly connected with a water inlet pipe (4). The left end of the top of the treatment tank (1) is fixedly connected with a drain pipe (5). The sand hopper (3) is equipped with a sand collection assembly (6). The center end of the top of the treatment tank (1) is equipped with a vortex sand settling mechanism (7). The bottom of the outer wall of the vortex sand settling mechanism (7) extends into the interior of the treatment tank (1). The left end of the drain pipe (5) is equipped with a filter assembly (8). The left end of the filter assembly (8) is equipped with a discharge pipe (9).

2. The cyclone grit chamber for wastewater treatment according to claim 1, characterized in that: The outer wall of the sand hopper (3) is provided with a threaded groove (301). The sand collecting assembly (6) includes a threaded cap (61) and a sleeve (62). The lower end of the sleeve (62) is fixedly connected to the inside of the threaded cap (61). The outer wall of the sleeve (62) is inserted into the inside of the sand hopper (3). The inner wall of the threaded cap (61) is threadedly connected to the outer wall of the sand hopper (3). The outer wall of the sleeve (62) is provided with a plurality of connecting holes (620) arranged in an equidistant array.

3. The cyclone grit chamber for wastewater treatment according to claim 1, characterized in that: The vortex sedimentation mechanism (7) includes a centrifugal motor (71), a rotating rod (72), a spiral blade (73), a connecting rod (74), a scraper (75), and two silicone scraper strips (76). The output shaft of the centrifugal motor (71) is fixedly connected to the upper end of the rotating rod (72). The inner wall of the spiral blade (73) is fixedly connected to the lower side of the outer wall of the rotating rod (72). The upper end of the connecting rod (74) is fixedly connected to the lower end of the rotating rod (72). The scraper (75) is U-shaped. The lower end of the connecting rod (74) is fixedly connected to the middle part of the scraper (75). The inner walls of the two silicone scraper strips (76) are respectively fixedly connected to the outer walls of the left and right ends of the scraper (75).

4. A cyclone grit chamber for wastewater treatment according to claim 3, characterized in that: The centrifugal motor (71) is externally fixed to the top of the treatment tank (1), and the outer wall of the silicone scraper (76) overlaps with the lower side of the inner wall of the treatment tank (1).

5. A cyclone grit chamber for wastewater treatment according to claim 1, characterized in that: The filter assembly (8) includes a filter housing (81), a mounting frame (82), a filter screen (83), a pull-out plate (84), two guide rails (85), and two sliders (86). The filter housing (81) is made of rust-proof iron. The outer wall of the filter screen (83) is fixedly connected to the inner wall of the mounting frame (82). The bottom of the pull-out plate (84) is fixedly connected to the top of the mounting frame (82). The top of the filter housing (81) has an installation port (810) that is compatible with the mounting frame (82). The outer walls of the two guide rails (85) are respectively fixedly connected to the front and rear ends of the inner wall of the filter housing (81) near the installation port (810). One end of each of the two sliders (86) is respectively fixedly connected to the front and rear ends of the mounting frame (82).

6. A cyclone grit chamber for wastewater treatment according to claim 5, characterized in that: The outer wall of the slider (86) is slidably connected to the inner wall of the guide rail (85), the left end of the drain pipe (5) is fixedly connected to the right end of the filter housing (81), and the top of the filter housing (81) is provided with grooves (811) on the left and right sides near the installation port (810).

7. A cyclone grit chamber for wastewater treatment according to claim 6, characterized in that: A sealing gasket (821) is fixedly connected to the outer wall of the mounting frame (82) near the top of the slider (86). The outer wall of the sealing gasket (821) overlaps with the inner wall of the mounting port (810). Magnet blocks (841) are fixedly connected to the bottom of the pull plate (84) near the left and right sides of the mounting frame (82).

8. A cyclone grit chamber for wastewater treatment according to claim 7, characterized in that: The outer wall of the magnet block (841) is magnetically connected to the inner wall of the groove (811).

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