Sewage pretreatment device for municipal water supply and drainage

Abstract

The utility model provides a sewage pretreatment device for municipal water supply and drainage, which comprises a box body with an accommodating space; the filtering structure is mounted at the upper section of the accommodating space, and the filtering structure further comprises a filtering box; the ruler strip is fixedly connected to the side wall of the filter box; the gear set is meshed with the ruler strip; the output end of the first motor is connected with the gear set, and the first motor is used for driving the gear set to make the ruler strip reciprocate left and right, so that the filter box reciprocates left and right; the stirring structure is mounted below the filtering structure; the partition plate is mounted below the stirring structure; the first liquid guide pipe is mounted on the partition plate, and the first liquid guide pipe is used for conveying wastewater on the upper side of the partition plate; and the settling tank is mounted below the partition plate. The first motor drives the gear set to enable the filter box to rapidly move left and right in a reciprocating manner, so that particulate matters cannot be deposited all the time until the filter screen is blocked, and the filter efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage pretreatment device for municipal water supply and drainage. Background Art

[0002] Urban wastewater mainly includes domestic sewage and industrial wastewater. Wastewater treatment is the process of removing pollutants from urban wastewater through physical, chemical and biological processes, and producing treated wastewater that is safe enough to be released into the environment.

[0003] For example, the municipal sewage pretreatment device with publication number CN207891171U provides a municipal sewage pretreatment device, including a filter for primary filtration of sewage, an activated carbon column for absorbing and removing harmful substances in water, a precipitator for precipitating impurities in water, a clean water tank for collecting clean water, and a regulating device for adjusting the acidity and alkalinity of clean water. Although the above patent can complete sewage treatment, when sewage is discharged, due to various reasons, such as industrial production, daily life discharge, etc., it often contains a large amount of solid particles, such as sand, soil, suspended matter, etc., which will make the particles unevenly distributed on the filter, and the particles will be concentrated in a specific area, resulting in excessive blockage of some areas of the filter, reducing the filtration efficiency and affecting the pretreatment effect.

[0004] Therefore, in order to solve the above problems, it is urgent to develop a sewage pretreatment device with stronger particle filtering function. Utility Model Content

[0005] The purpose of the utility model is to address the defects of the prior art and provide a sewage pretreatment device for municipal water supply and drainage. The first motor drives the gear set to make the filter box move back and forth quickly, so that particulate matter cannot be deposited until the filter is blocked, thereby improving the filtering efficiency.

[0006] The utility model provides a sewage pretreatment device for municipal water supply and drainage, comprising: a box body, the box body has an accommodating space; a filtering structure, the filtering structure is installed in the upper section of the accommodating space, and the filtering structure also includes: a filter box; a ruler, the ruler is fixedly connected to the side wall of the filter box; a gear set, the gear set is meshed with the ruler; a first motor, the output end of the first motor is connected to the gear set, the first motor is used to drive the gear set to make the ruler reciprocate left and right, and then make the filter box reciprocate left and right; a stirring structure, the stirring structure is installed below the filtering structure; a partition plate, the partition plate is installed below the stirring structure; a first liquid guide tube, the first liquid guide tube is installed on the partition plate, and the first liquid guide tube is used to transport wastewater on the upper side of the partition plate; a sedimentation box, the sedimentation box is installed below the partition plate.

[0007] Furthermore, the gear set also includes: a first gear, which is installed on the output end of the first motor; a second gear, which is meshed above the first gear; a third gear, which is meshed below the first gear; a first half gear, which is coaxially installed on the side wall of the filter box with the second gear, and the circumference of the first half gear is a combination of teeth and no teeth; a second half gear, which is coaxially installed on the side wall of the filter box with the third gear, and the circumference of the second half gear is a combination of teeth and no teeth; wherein the first half gear or the second half gear is meshed with a ruler.

[0008] Furthermore, the filtering structure further comprises: support blocks, two of which are mounted at both ends of the ruler bar; and limit bars, two of which are mounted on the side walls of the filter box and located at the upper and lower sides of the ruler bar. Further, the box body further comprises: support grooves, which are mounted on the inner side of the box body at positions corresponding to the support blocks; and limit grooves, which are mounted on the inner side of the box body at positions corresponding to the limit bars; wherein the lengths of the support grooves and the limit grooves match the motion trajectory of the filter box.

[0009] Furthermore, the stirring structure further includes: a second motor; a stirring shaft connected to the output end of the second motor; and a stirring blade installed on the stirring shaft. Still further, the box further includes: a first motor slot installed on the side wall of the box; and a second motor slot installed on the side wall of the box.

[0010] Furthermore, it also includes a cover plate, which is installed on the top of the box body. Still further, it also includes a first feed pipe, which is installed on the cover plate.

[0011] Furthermore, it also includes a second feed pipe, which is installed on the side wall of the box body and is located between the filtering structure and the partition plate.

[0012] Furthermore, it also includes a second liquid conduit, which is installed at the bottom of the side wall of the box body and is located on the side wall of the sedimentation box.

[0013] Furthermore, a filter screen is provided at the bottom of the filter box.

[0014] The beneficial effects of the utility model are:

[0015] 1. The first motor drives the gear set to make the filter box move back and forth quickly, so that the particles cannot continue to settle until the filter is blocked, thereby improving the filtering efficiency.

[0016] 2. The synergistic effect of the filtering structure, stirring structure and sedimentation box improves the filtering effect of particulate matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the filtering structure in the embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the gear set in the embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the box body in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the exterior structure of an embodiment of the utility model;

[0022] Figure numerals: 1. Box body; 11. Accommodating space; 12. Support groove; 13. Limiting groove; 14. First motor groove; 15. Second motor groove; 2. Filter structure; 21. Filter box; 211-Filter screen; 22. Rack; 23. Gear set; 231. First gear; 232. Second gear; 233. Third gear; 234. First half gear; 235. Second half gear; 24. First motor; 25. Support block; 26. Limiting bar 3. Stirring structure; 31. Second motor; 32. Stirring shaft; 33. Stirring blade; 4. Partition plate; 5. First liquid guide tube; 6. Sedimentation box; 7. Cover plate; 8. First feed pipe; 9. Second feed pipe; 10. Second liquid guide tube. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] refer to Figure 1-5 , a sewage pretreatment device for municipal water supply and drainage, comprising:

[0025] The box body 1 has a containing space 11;

[0026] The filter structure 2 is installed in the upper section of the accommodating space 11. The filter structure 2 also includes: a filter box 21, the filter box 21 has a filter screen 211 at the bottom; a ruler 22, the ruler 22 is fixed to the side wall of the filter box 21; a gear set 23, the gear set 23 is meshed with the ruler 22; a first motor 24, the output end of the first motor 24 is connected to the gear set 23, the first motor 24 is used to drive the gear set 23 to make the ruler 22 reciprocate left and right, thereby making the filter box 21 reciprocate left and right. The gear set 23 also includes: a first gear 231, the first gear 231 is installed at the output end of the first motor 24; a second gear 232, the second gear 232 is meshed above the first gear 231; a third gear 233, the third gear 233 is meshed below the first gear 231; a first half gear 234, the first half gear 234 and the second gear 232 are coaxially installed on the side wall of the filter box 21, and the circumference of the first half gear 234 is with teeth and without teeth. Combined with the second half gear 235, the second half gear 235 is coaxially installed with the third gear 233 on the side wall of the filter box 21, and the circumference of the second half gear 235 is a combination of teeth and no teeth; wherein, the first half gear 234 or the second half gear 235 is meshed with the ruler 22, and when the first half gear 234 is meshed with the ruler 22, the teeth of the second half gear 235 are just separated from the ruler 22, and vice versa, the teeth of the second half gear 235 are meshed with the ruler 22. The filter structure 2 also includes: support blocks 25, two support blocks 25 are installed at both ends of the ruler 22; and limit bars 26, two limit bars 26 are installed on the side wall of the filter box 21 and are located at the upper and lower sides of the ruler 22. Correspondingly, the box body 1 also includes: a support groove 12, which is installed at a position on the inner side of the box body 1 corresponding to the support block 25; a limit groove 13, which is installed at a position on the inner side of the box body 1 corresponding to the limit strip 26; wherein the lengths of the support groove 12 and the limit groove 13 match the movement trajectory of the filter box 21, so as to complete the fixation of the filter structure 2.

[0027] The stirring structure 3 is installed below the filtering structure 2; the stirring structure 3 also includes: a second motor 31; a stirring shaft 32, the stirring shaft 32 is connected to the second motor 31; and a stirring blade 33, the stirring blade 33 is installed on the stirring shaft 32. Correspondingly, the box body 1 also includes: a first motor slot 14, the first motor slot 14 is installed on the side wall of the box body 1; and a second motor slot 15, the second motor slot 15 is installed on the side wall of the box body 1; wherein the first motor slot 14 and the second motor slot 15 match the size and shape of the first motor 24 and the second motor 31, so as to support the first motor 24 and the second motor 31.

[0028] The partition plate 4 is installed below the stirring structure 3 .

[0029] The first liquid conduit 5 is installed on the partition plate 4. The first liquid conduit 5 is used to transport waste water on the upper side of the partition plate 4. The first liquid conduit 5 is controlled to open and close by a solenoid valve.

[0030] The sedimentation box 6 is installed below the partition plate 4.

[0031] The cover plate 7 is installed on the top of the box body 1.

[0032] A first feed pipe 8 is installed on the cover plate 7 .

[0033] The second feed pipe 9 is installed on the side wall of the box body 1 and is located between the filtering structure 2 and the partition plate 4 .

[0034] The second liquid conduit 10 is installed at the bottom of the side wall of the box body 1 and is located on the side wall of the sedimentation box 6. The second liquid conduit 10 is controlled to open and close by a solenoid valve.

[0035] The usage and principle of this embodiment are as follows:

[0036] The user discharges sewage into the inner cavity of the filter box 21 through the first feed pipe 8, and turns on the first motor 24. The output shaft of the first motor 24 drives the middle first gear 231 to rotate, and the first gear 231 drives the top and bottom second gears 232 and the third gear 233 to rotate, and then drives the first half gear 234 and the second half gear 235 to rotate. When the first half gear 234 is not engaged with the ruler 22, the second half gear 235 drives the ruler 22 to move to one side. When the teeth of the first half gear 234 rotate to engage with the ruler 22, the teeth of the second half gear 235 are separated from the ruler 22, and the first half gear 234 drives the ruler 22 to move in the opposite direction, that is, the first half gear 234 and the second half gear 235 are alternately engaged with the ruler 22, so that the filter box 21 can be driven to reciprocate left and right. Through the rapid reciprocating left and right motion, the particles are lifted up to prevent the particles on the filter screen 211 from being blocked due to excessive precipitation. The filtered sewage is discharged to the top of the partition plate 4. At this time, the user can introduce the treatment agent into the top of the partition plate 4 through the second feed pipe 9, and turn on the second motor 31. The output shaft of the second motor 31 drives the stirring shaft 32 to rotate, and the stirring shaft 32 drives the stirring blades 33 to mix the sewage and the treatment agent on the top of the partition plate 4 evenly. After the mixing is completed, the first liquid guide pipe 5 is opened, and the sewage above the partition plate 4 is discharged to the inner cavity of the sedimentation tank 6 through the connecting pipe for sedimentation, thereby completing the purpose of pre-treating the sewage.

[0037] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A sewage pretreatment device for municipal water supply and drainage, characterized in that: include: A box body (1), the box body having a containing space (11); A filter structure (2), the filter structure (2) being installed in the upper section of the accommodating space (11), the filter structure (2) further comprising: Filter box (21); A ruler bar (22), the ruler bar (22) being fixedly connected to a side wall of the filter box (21); A gear set (23), wherein the gear set (23) is meshed with the ruler (22); A first motor (24), wherein an output end of the first motor (24) is connected to the gear set (23), and the first motor (24) is used to drive the gear set (23) to make the ruler (22) reciprocate left and right, thereby making the filter box (21) reciprocate left and right; A stirring structure (3), wherein the stirring structure (3) is installed below the filtering structure (2); A partition plate (4), wherein the partition plate (4) is installed below the stirring structure (3); A first liquid conduit (5), the first liquid conduit (5) being installed on the partition plate (4), the first liquid conduit (5) being used to transport wastewater on the upper side of the partition plate (4); A sedimentation box (6), wherein the sedimentation box (6) is installed below the partition plate (4).

2. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: The gear set (23) further comprises: A first gear (231), the first gear (231) being mounted on an output end of the first motor (24); A second gear (232), the second gear (232) is meshed with the first gear (231); A third gear (233), the third gear (233) being meshed below the first gear (231); A first half gear (234), the first half gear (234) and the second gear (232) being coaxially mounted on the side wall of the filter box (21), the circumference of the first half gear (234) being a combination of teeth and no teeth; A second half gear (235), the second half gear (235) and the third gear (233) being coaxially mounted on the side wall of the filter box (21), the circumference of the second half gear (235) being a combination of teeth and no teeth; Wherein, the first half gear (234) or the second half gear (235) is meshed with the ruler (22).

3. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: The filtering structure (2) further comprises: Support blocks (25), two of the support blocks (25) are mounted on both ends of the ruler (22); Limiting bars (26), two of the limiting bars (26) are installed on the side walls of the filter box (21) and are located on the upper and lower sides of the ruler bar (22).

4. A sewage pretreatment device for municipal water supply and drainage according to claim 3, characterized in that: The box (1) also includes: A support groove (12), the support groove (12) being installed at a position inside the box body (1) corresponding to the support block (25); A limiting groove (13), the limiting groove (13) being installed at a position on the inner side of the box body (1) corresponding to the limiting strip (26); The lengths of the supporting groove (12) and the limiting groove (13) match the movement trajectory of the filter box (21).

5. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: The stirring structure (3) further comprises: A second motor (31); A stirring shaft (32), wherein the stirring shaft (32) is connected to an output end of the second motor (31); A stirring blade (33), wherein the stirring blade (33) is installed on the stirring shaft (32).

6. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: Also includes: A cover plate (7), the cover plate (7) being mounted on the top of the box body (1); A first feeding pipe (8), wherein the first feeding pipe (8) is mounted on the cover plate (7).

7. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: Also includes: A second feed pipe (9), the second feed pipe (9) is installed on the side wall of the box body (1) and is located between the filtering structure (2) and the partition plate (4).

8. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: Also includes: A second liquid conduit (10), the second liquid conduit (10) is installed at the bottom of the side wall of the box body (1) and is located on the side wall of the sedimentation box (6).

9. A sewage pretreatment device for municipal water supply and drainage according to claim 5, characterized in that: The box (1) also includes: A first motor slot (14), the first motor slot (14) being mounted on a side wall of the box body (1); A second motor slot (15), wherein the second motor slot (15) is installed on a side wall of the box body (1).

10. A sewage pretreatment device for municipal water supply and drainage according to claim 1, characterized in that: The bottom of the filter box (21) is provided with a filter screen (211).

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