Filtering device for wastewater pretreatment

Abstract

The utility model belongs to the field of wastewater pretreatment, and particularly relates to a filtering device for wastewater pretreatment, which comprises a shell, a water inlet pipe and a water outlet pipe are fixedly mounted in the middles of two sides of the shell respectively, a collecting cavity is formed in the shell close to the water inlet pipe, and a mounting cavity is formed in the shell close to the water outlet pipe. The collecting cavity is communicated with the mounting cavity, a filtering assembly is arranged in the middle of the mounting cavity, the filtering assembly comprises a top plate, a mounting frame I is fixedly connected to the lower end surface of the top plate, and a mounting frame II is arranged below the mounting frame I. Solid impurities in wastewater are conveniently filtered through the filtering assembly; by arranging the cleaning assembly, impurities attached to the filter screen can be conveniently cleaned, and the filter screen is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of wastewater pretreatment, in particular to a filtering device for wastewater pretreatment. Background Art

[0002] The filtration device for industrial wastewater pretreatment is a kind of equipment for filtering and treating industrial wastewater. It can intercept impurities in industrial wastewater to achieve the treatment of industrial wastewater, so that the treated industrial wastewater meets the discharge standards;

[0003] When filtering industrial wastewater, the industrial wastewater is first discharged into a filtering device through a pipe. The solid and liquid in the wastewater are separated through preliminary filtration by the device, thereby facilitating the subsequent treatment of the industrial wastewater. However, in the actual operation process, solid impurities in the industrial wastewater will adhere to the filter when passing through the filter in the filtering device. A large amount of impurities will accumulate in the filtering device, causing the filter to be blocked. This is not only not conducive to the treatment of industrial wastewater, but also greatly reduces the efficiency of industrial wastewater filtration and affects the filtration work of industrial wastewater. Therefore, a filtering device for wastewater pretreatment is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problem that solid impurities in wastewater will adhere to the filter screen when filtering through the filter screen in the filtering device, and a large amount of impurities will accumulate in the filtering device, causing the filter screen to be blocked, which is not only not conducive to the treatment of industrial wastewater, but also greatly reduces the efficiency of industrial wastewater filtration. The utility model proposes a filtering device for wastewater pretreatment.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a filtering device for wastewater pretreatment described in the utility model comprises a shell, an inlet pipe and an outlet pipe are fixedly installed in the middle of two sides of the shell respectively, a collecting chamber is opened inside the shell near the position of the inlet pipe, an installation chamber is opened inside the shell near the position of the outlet pipe, the collecting chamber and the installation chamber are communicated with each other, a filtering assembly is arranged in the middle of the installation chamber, the filtering assembly comprises a top plate, a mounting frame 1 is fixedly connected to the lower end surface of the top plate, a mounting frame 2 is arranged below the mounting frame 1, the outer contour of the mounting frame 1 and the mounting frame 2 is rectangular when they are combined, a circular mounting groove is formed in the middle when the mounting frame 1 and the mounting frame 2 are combined, a fixing ring is rotatably installed in the middle of the mounting groove, a filter screen is fixedly installed in the middle of the fixing ring, and solid impurities in the wastewater are easily filtered through the filtering assembly.

[0006] Preferably, the filter assembly is provided with a cleaning assembly, through which impurities attached to the filter screen are cleaned, the cleaning assembly includes a gear, a movable groove is opened in the middle of the top plate, the bottom of the movable groove is connected to the mounting groove, the gear is rotatably installed in the movable groove, the top of the gear extends to the outside of the top plate, an inner recessed groove is opened in the middle of the outer wall of the fixing ring, a plurality of groups of teeth are evenly fixedly connected in the inner recessed groove, the teeth are meshed with the gear, a brush is installed in the middle of the side of the mounting frame 1 and the mounting frame 2 facing the water inlet pipe, the brush is fitted with the filter screen, the impurities attached to the filter screen are cleaned by the cleaning assembly, the filter screen is cleaned, the filter screen is prevented from being blocked, and the filtering effect of the filter screen is ensured.

[0007] Preferably, slots 1 are respectively provided on both sides of the bottom end of the installation frame 1, and plug blocks 1 are respectively fixedly connected to both sides of the top of the installation frame 2, and the plug block 1 is adapted to slot 1, and the plug block 1 is inserted into slot 1. Through the cooperation between the plug block 1 and slot 1, the installation frame 1 and the installation frame 2 are combined together, thereby facilitating the installation of the fixing ring and the filter net in the installation groove.

[0008] Preferably, a sink is provided on the top of the installation cavity, the top plate and the sink are adapted, mounting holes are symmetrically provided at both ends of the top plate, bolts are provided in the mounting holes, threaded holes are symmetrically provided on both sides of the sink, the bottom ends of the bolts are threadedly connected in the threaded holes, and the filter assembly is fixedly installed inside the installation cavity by passing the bolts through the mounting holes and threading them in the threaded holes.

[0009] Preferably, the bottom of the collecting chamber is inclined toward the middle, and a drain pipe is fixedly connected to the bottom of the collecting chamber. A solenoid valve is fixedly installed at the bottom end of the drain pipe. The filtered solid impurities are collected through the collecting chamber, and the impurities are discharged through the drain pipe and the solenoid valve.

[0010] Preferably, a slot two is respectively opened on the middle inner wall of the installation frame one and the installation frame two, and plug blocks two are respectively fixedly connected to the two side ends of the brush, the plug block two is adapted to the slot two, and the plug block two is inserted in the slot two, and the brush is fixedly installed between the installation frame one and the installation frame two through the cooperation of the plug block two and the slot two.

[0011] Preferably, the middle edge of the second installation frame is set as a bevel to facilitate the introduction of impurities scraped off the filter screen into the collection chamber.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model filters solid impurities in wastewater by setting a filter assembly. When in use, the filter assembly is first installed in the installation groove, and wastewater is introduced into the shell from the water inlet pipe. The wastewater is filtered through the filter screen to separate the solid impurities in the wastewater, and then the impurities are collected through the collection chamber; in addition, the installation frame 1 and the installation frame 2 are combined together by matching the plug block 1 and the slot 1, so that the fixing ring and the filter screen can be easily installed in the installation groove, and the fixing ring and the filter screen can also be quickly replaced.

[0014] 2. The utility model is convenient for cleaning impurities attached to the filter screen by arranging a cleaning component. When in use, the gear is rotated, and the gear meshes with the teeth below, thereby pushing the fixing ring and the filter screen below to rotate, and the impurities attached to the surface of the filter screen are scraped off by a brush, effectively preventing the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0017] Figure 2 It is a partial cross-sectional view of the first embodiment;

[0018] Figure 3 It is a schematic diagram of the structure of the filtering component and the cleaning component of the first embodiment;

[0019] Figure 4 It is a schematic diagram of the structure of the installation frame 1 and the installation frame 2 of the first embodiment;

[0020] Figure 5 is a partial cross-sectional view of the housing of the first embodiment;

[0021] Figure 6 For Example 1 Figure 3 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 7 For Example 1 Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0023] In the figure: 1. shell; 2. water inlet pipe; 3. water outlet pipe; 4. sewage pipe; 5. solenoid valve; 6. filter assembly; 61. top plate; 62. mounting frame 1; 63. mounting frame 2; 64. mounting groove; 65. fixing ring; 66. filter screen; 67. bevel; 68. mounting hole; 69. bolt; 610. threaded hole; 611. slot 1; 612. plug block 1; 7. collecting chamber; 8. mounting chamber; 9. cleaning assembly; 91. gear; 92. movable groove; 93. teeth; 94. brush; 95. plug block 2; 96. slot 2; 10. sink. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-7 As shown, a filtering device for wastewater pretreatment comprises a housing 1, an inlet pipe 2 and an outlet pipe 3 are fixedly installed in the middle of both sides of the housing 1, a collecting chamber 7 is opened in the housing 1 near the inlet pipe 2, an installation chamber 8 is opened in the housing 1 near the outlet pipe 3, the collecting chamber 7 and the installation chamber 8 are connected, a filter assembly 6 is arranged in the middle of the installation chamber 8, the filter assembly 6 comprises a top plate 61, a mounting frame 62 is fixedly connected to the lower end surface of the top plate 61, and a mounting frame 62 is arranged below the mounting frame 62. The second mounting frame 63, when the mounting frame 1 62 and the mounting frame 2 63 are combined, the outer contour is a rectangle, and when the mounting frame 1 62 and the mounting frame 2 63 are combined, a circular mounting groove 64 is formed in the middle, and a fixing ring 65 is rotatably installed in the middle of the mounting groove 64, and a filter screen 66 is fixedly installed in the middle of the fixing ring 65; when working, the filter assembly 6 is first installed in the mounting groove 64, and the waste water is introduced into the interior of the housing 1 from the water inlet pipe 2, and the waste water is filtered through the filter screen 66 to separate the solid impurities in the waste water, and then the impurities are collected through the collecting chamber 7.

[0027] The filter assembly 6 is provided with a cleaning assembly 9, through which the impurities attached to the filter screen 66 are cleaned. The cleaning assembly 9 includes a gear 91, a movable groove 92 is provided in the middle of the top plate 61, and the bottom of the movable groove 92 is connected to the mounting groove 64. The gear 91 is rotatably mounted in the movable groove 92, and the top of the gear 91 extends to the outside of the top plate 61. A recessed groove is provided in the middle of the outer wall of the fixing ring 65, and multiple groups of teeth 93 are evenly fixedly connected in the recessed groove, and the teeth 93 are meshed with the gear 91. A brush 94 is installed in the middle of the side of the mounting frame 1 62 and the mounting frame 2 63 facing the water inlet pipe 2, and the brush 94 is fitted with the filter screen 66; when working, the gear 91 is rotated, and the gear 91 is meshed with the teeth 93 below, thereby pushing the fixing ring 65 and the filter screen 66 below to rotate, and the impurities attached to the surface of the filter screen 66 are scraped off by the brush 94, and the scraped impurities fall into the collecting chamber 7 and are collected.

[0028] Slots 1 611 are respectively provided on both sides of the bottom end of the installation frame 1 62, and plug blocks 1 612 are respectively fixedly connected to both sides of the top of the installation frame 2 63, and the plug block 1 612 is adapted to the slot 1 611, and the plug block 1 612 is inserted into the slot 1 611; when working, the installation frame 1 62 and the installation frame 2 63 are combined together through the cooperation of the plug block 1 612 and the slot 1 611, so as to facilitate the installation of the fixing ring 65 and the filter screen 66 in the installation groove 64, and the fixing ring 65 and the filter screen 66 can also be quickly replaced.

[0029] A sink 10 is provided at the top of the installation cavity 8, and the top plate 61 is adapted to the sink 10. Mounting holes 68 are symmetrically provided at both ends of the top plate 61, and bolts 69 are provided in the mounting holes 68. Threaded holes 610 are symmetrically provided on both sides of the sink 10, and the bottom ends of the bolts 69 are threadedly connected in the threaded holes 610. During operation, the installation frame 1 62 and the installation frame 2 63 are inserted into the installation groove 64, and the top plate 61 is engaged in the sink 10. Then, the bolts 69 are passed through the mounting holes 68 and threadedly installed in the threaded holes 610, thereby fixing the filter assembly 6 inside the installation cavity 8.

[0030] The bottom of the collecting chamber 7 is inclined toward the middle, and a drain pipe 4 is fixedly connected to the bottom of the collecting chamber 7, and a solenoid valve 5 is fixedly installed at the bottom end of the drain pipe 4; when working, the filtered solid impurities are collected by the collecting chamber 7, and the impurities are discharged through the drain pipe 4 and the solenoid valve 5.

[0031] A slot 2 96 is respectively provided on the middle inner wall of the installation frame 1 62 and the installation frame 2 63, and plug blocks 2 95 are respectively fixedly connected to the two side ends of the brush 94, and the plug blocks 2 95 are adapted to the slot 2 96, and the plug blocks 2 95 are inserted in the slot 2 96; when working, the brush 94 is fixedly installed between the installation frame 1 62 and the installation frame 2 63 through the cooperation of the plug blocks 2 95 and the slot 2 96, and the brush 94 is easy to replace.

[0032] Embodiment 2

[0033] See also Figure 7 As shown, compared with Example 1, as another implementation of the utility model, the middle edge position of the mounting frame 2 63 is set as a bevel 67; when working, it is convenient to introduce the impurities scraped off the filter screen 66 into the collection chamber 7.

[0034] Working principle: when working, first install the filter assembly 6 in the installation groove 64, introduce the wastewater from the water inlet pipe 2 into the housing 1, filter the wastewater through the filter screen 66, separate the solid impurities in the wastewater, and then collect the impurities through the collection chamber 7; in addition, rotate the gear 91, the gear 91 is meshed with the teeth 93 below, and then drives the fixing ring 65 and the filter screen 66 below to rotate, and the impurities attached to the surface of the filter screen 66 are scraped off by the brush 94, and the scraped impurities fall into the collection chamber 7 and are collected. Finally, open the solenoid valve 5 and discharge the solid impurities through the sewage pipe 4.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A filtration device for wastewater pretreatment, characterized in that: The invention comprises a shell (1), wherein a water inlet pipe (2) and a water outlet pipe (3) are respectively fixedly installed in the middle of two sides of the shell (1), a collecting chamber (7) is provided in the shell (1) near the water inlet pipe (2), and an installation chamber (8) is provided in the shell (1) near the water outlet pipe (3), the collecting chamber (7) and the installation chamber (8) are connected, a filter assembly (6) is provided in the middle of the installation chamber (8), and the filter assembly (6) comprises a top plate (61), and the top plate A mounting frame 1 (62) is fixedly connected to the lower end surface of (61), and a mounting frame 2 (63) is arranged below the mounting frame 1 (62). When the mounting frame 1 (62) and the mounting frame 2 (63) are combined, the outer contour is a rectangle. When the mounting frame 1 (62) and the mounting frame 2 (63) are combined, a circular mounting groove (64) is formed in the middle. A fixing ring (65) is rotatably installed in the middle of the mounting groove (64), and a filter screen (66) is fixedly installed in the middle of the fixing ring (65).

2. A filter device for wastewater pretreatment according to claim 1, characterized in that: The filter assembly (6) is provided with a cleaning assembly (9), and impurities attached to the filter screen (66) are cleaned by the cleaning assembly (9). The cleaning assembly (9) comprises a gear (91). A movable groove (92) is provided in the middle of the top plate (61), and the bottom of the movable groove (92) is connected to the mounting groove (64). The gear (91) is rotatably mounted in the movable groove (92). The top of the gear (91) extends to the outside of the top plate (61). An inner recessed groove is provided in the middle of the outer wall of the fixing ring (65). A plurality of groups of teeth (93) are evenly fixedly connected in the inner recessed groove. The teeth (93) mesh with the gear (91). A brush (94) is installed in the middle of the side of the mounting frame 1 (62) and the mounting frame 2 (63) facing the water inlet pipe (2), and the brush (94) fits the filter screen (66).

3. A wastewater pretreatment filtering device according to claim 2, characterized in that: The bottom sides of the installation frame 1 (62) are respectively provided with slots 1 (611), and the top sides of the installation frame 2 (63) are respectively fixedly connected with plug-in blocks 1 (612), the plug-in blocks 1 (612) and the slots 1 (611) are adapted, and the plug-in blocks 1 (612) are plugged into the inside of the slots 1 (611).

4. A wastewater pretreatment filtering device according to claim 3, characterized in that: A sink (10) is provided at the top of the installation cavity (8), the top plate (61) and the sink (10) are adapted to each other, mounting holes (68) are symmetrically provided at both ends of the top plate (61), bolts (69) are provided in the mounting holes (68), threaded holes (610) are symmetrically provided on both sides of the sink (10), and the bottom ends of the bolts (69) are threadedly connected in the threaded holes (610).

5. A wastewater pretreatment filtering device according to claim 4, characterized in that: The bottom of the collecting chamber is inclined toward the middle, a sewage discharge pipe (4) is fixedly connected to the bottom of the collecting chamber, and a solenoid valve (5) is fixedly installed at the bottom end of the sewage discharge pipe (4).

6. A filter device for wastewater pretreatment according to claim 5, characterized in that: A second slot (96) is respectively provided on the middle inner wall of the installation frame 1 (62) and the installation frame 2 (63), and a second plug-in block (95) is respectively fixedly connected to the two side ends of the brush (94), and the second plug-in block (95) is adapted to the second slot (96), and the second plug-in block (95) is inserted into the second slot (96).

7. A wastewater pretreatment filtering device according to claim 6, characterized in that: The middle edge position of the second installation frame (63) is set as a bevel (67).

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