Sewage composite filtering device

Abstract

The utility model relates to a sewage composite filtering device which comprises a horizontal filtering box body, a first filtering cavity, a second filtering cavity, a third filtering cavity and a fourth filtering cavity, and is technically characterized in that a conical filtering grid is arranged in the upper part of the first filtering cavity, and a first sludge collecting hopper is arranged in the lower part of the first filtering cavity; the partition plates of the first filter cavity and the second filter cavity are provided with first water through holes at positions higher than the first sludge collecting hopper, an artificial wetland module is arranged in the upper part of the second filter cavity, a second sludge collecting hopper as high as the first sludge collecting hopper is arranged in the lower part of the second filter cavity, and the partition plates of the second filter cavity and the third filter cavity are provided with second water through holes at positions higher than the artificial wetland module; a first activated carbon module is arranged in the middle of the third filtering cavity, third water passing openings are formed in the positions, lower than the first activated carbon module, of the partition plates of the third filtering cavity and the fourth filtering cavity, and a second activated carbon module higher than the third water passing opening is arranged in the fourth filtering cavity. According to the device, the filtering path is prolonged, and the organic matter filtering treatment capacity is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment equipment technical field, concretely relates to a sewage composite filter device. BACKGROUND

[0002] At present, the sewage from industrial production needs to be discharged after water treatment equipment, otherwise it will cause serious environmental pollution. Due to the diversity of pollutants in sewage, generally need to adopt the filter device with multiple filtering structures.

[0003] Such as CN 220530944 U discloses a rainwater reuse system's composite filter device, it is equipped with multiple different filter units and exhaust port, it is intended to improve the processing efficiency, by arranging different filter units according to certain order, realize multistage filtration and processing, thereby improve processing efficiency. But it has the following problems: the filtering path is still short, the filtering effect of organic matter is not good. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a sewage composite filter device that solves the above problems, which is reasonable in structure and reliable in use, prolongs the filtering path and strengthens the filtering and processing capacity of organic matter.

[0005] The technical scheme of the utility model is:

[0006] A sewage composite filter device, including horizontal filter box, first filter cavity, second filter cavity, third filter cavity and fourth filter cavity that are in series and are arranged in horizontal filter box, its technical key points are: the first filter cavity upper portion is built in conical filter grid, the first filter cavity lower portion is built in first sludge collecting hopper, the partition plate of first filter cavity and second filter cavity is equipped with first water outlet at the position higher than first sludge collecting hopper, the second filter cavity upper portion is built in artificial wetland module, the artificial wetland module bottom is equipped with water outlet plate, the second filter cavity lower portion is built in second sludge collecting hopper that is equal in height with first sludge collecting hopper, the partition plate of second filter cavity and third filter cavity is equipped with second water outlet at the position higher than artificial wetland module, the third filter cavity middle portion is equipped with first activated carbon module, the partition plate of third filter cavity and fourth filter cavity is equipped with third water outlet at the position lower than first activated carbon module, the fourth filter cavity is equipped with second activated carbon module that is higher than third water outlet, and the top side wall of fourth filter cavity is equipped with purified water outlet.

[0007] The sewage composite filter device has the first sludge collecting hopper and the second sludge collecting hopper lower portion is equipped with sludge outlet, and the sludge outlet is connected with the inlet of external sludge pump by pipeline.

[0008] The sewage composite filter device has the third filter cavity and the fourth filter cavity bottom respectively is equipped with sewage outlet.

[0009] The sewage composite filtering device, the artificial wetland module comprises filter gauze laid on the water hole plate, a gravel layer arranged on the filter gauze, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer, and a plurality of bacterial species feeding devices are additionally arranged in the nutrient soil layer.

[0010] The sewage composite filtering device, the artificial wetland module comprises filter gauze laid on the water hole plate, a gravel layer arranged on the filter gauze, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer, and a plurality of bacterial species feeding devices are additionally arranged in the nutrient soil layer.

[0011] The sewage composite filtering device, the artificial wetland module comprises filter gauze laid on the water hole plate, a gravel layer arranged on the filter gauze, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer, and a plurality of bacterial species feeding devices are additionally arranged in the nutrient soil layer.

[0012] The sewage composite filtering device, the artificial wetland module comprises filter gauze laid on the water hole plate, a gravel layer arranged on the filter gauze, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer, and a plurality of bacterial species feeding devices are additionally arranged in the nutrient soil layer.

[0013] The sewage composite filtering device, the artificial wetland module comprises filter gauze laid on the water hole plate, a gravel layer arranged on the filter gauze, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer, and a plurality of bacterial species feeding devices are additionally arranged in the nutrient soil layer.

[0014] 1、The first filtering cavity, the second filtering cavity, the third filtering cavity and the fourth filtering cavity are communicated through the first water inlet, the second water inlet and the third water inlet, sewage passes through the conical filter grid, the first water inlet, the artificial wetland module, the second water inlet, the first activated carbon module, the third water inlet and the second activated carbon module in sequence, so that the multi-stage filtering and purifying purposes are achieved.

[0015] 2、The artificial wetland module is arranged, the filtering and treatment capacity of organic matters is improved, and the filtering and treatment capacity is long-term effective. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a structure schematic diagram.

[0017] In the drawing: 1. horizontal filter box, 2. conical filter grid, 3. hoisting lug, 4. first filtering cavity, 5. partition, 6. hoisting lug, 7. bacterial species feeding device, 8. vegetation, 9. nutrient soil layer, 10. sand layer, 11. second water inlet, 12. partition, 13. bypass water inlet, 14. third filtering cavity, 15. partition, 16. fourth filtering cavity, 17. purified water outlet, 18. second activated carbon module, 19. sewage outlet, 20. third water inlet, 21. first activated carbon module, 22. water hole plate, 23. filter gauze, 24. second sludge collecting hopper, 25. gravel layer, 26. first water inlet, 27. first sludge collecting hopper, 28. sludge outlet, 29. sludge pump, 30. second filtering cavity. DETAILED DESCRIPTION

[0018] The utility model will be described in detail according to the drawings of the specification.

[0019] As Figure 1 The sewage composite filter device includes a horizontal filter box 1, a first filter cavity 4, a second filter cavity 30, a third filter cavity 14 and a fourth filter cavity 16 arranged in series in the horizontal filter box 1.

[0020] The first filter cavity 4 is internally provided with a conical filter grid 2 at the upper portion, and a first sludge collecting hopper 27 is internally provided at the lower portion of the first filter cavity 4. A first water inlet 26 is arranged on the partition plate 5 between the first filter cavity 4 and the second filter cavity 30 at a position higher than the first sludge collecting hopper 27. The top end of the conical filter grid 2 is fixedly provided with a lifting lug 3.

[0021] An artificial wetland module is internally provided at the upper portion of the second filter cavity 30, and a water inlet hole plate 22 is arranged at the bottom of the artificial wetland module. A second sludge collecting hopper 24 is internally provided at the lower portion of the second filter cavity 30 and is at the same height as the first sludge collecting hopper 27. A second water inlet 11 is arranged on the partition plate 12 between the second filter cavity 30 and the third filter cavity 14 at a position higher than the artificial wetland module. In this embodiment, a sludge discharge port 28 is arranged at the lower portion of the first sludge collecting hopper 27 and the second sludge collecting hopper 24, and the sludge discharge port 28 is connected to the inlet of an external sludge pump 29 through a pipeline. The artificial wetland module includes a filter screen cloth 23 laid on the water inlet hole plate 22, a gravel layer 25 arranged on the filter screen cloth 23, a sand layer 10 arranged on the gravel layer 25, a nutrient soil layer 9 arranged on the sand layer 10, vegetation 8 planted above the nutrient soil layer 9, and a plurality of bacterial inoculum dispensers 7 arranged in the nutrient soil layer 9. An outer shell that is integral with the water inlet hole plate 22 is arranged at the outer periphery of the artificial wetland module, and a pair of lifting lugs 6 is symmetrically arranged at the upper end of the outer shell.

[0022] A first activated carbon module 21 is arranged at the middle portion of the third filter cavity 14, and a third water inlet 20 is arranged on the partition plate 15 between the third filter cavity 14 and the fourth filter cavity 16 at a position lower than the first activated carbon module 21. A second activated carbon module 18 is arranged in the fourth filter cavity 16 and is higher than the third water inlet 20. A purified water outlet 17 is arranged on the top side wall of the fourth filter cavity 16. In this embodiment, a sewage discharge port 19 is arranged at the bottom of the third filter cavity 14 and the fourth filter cavity 16, respectively. A bypass water inlet 13 is arranged on the partition plate 12 between the second filter cavity 30 and the third filter cavity 14 at a position higher than the first activated carbon module 21 and lower than the water inlet hole plate 22, and a control valve is arranged at the bypass water inlet 13.

[0023] Working principle:

[0024] The sewage is put above the conical filter grid 2, solid sundries are intercepted above the conical filter grid 2, and the solid sundries are accumulated above the low end of the conical filter grid 2 under the impact of water flow, and do not affect the filtration of subsequent sewage. The water body filtered through the conical filter grid 2 enters the second filter cavity 30 through the first water inlet 26, as the water level of the water body rises, the water body passes through the artificial wetland module to above the nutrient soil layer, and enters the third filter cavity 14 through the second water inlet 11, the artificial wetland module is regularly put biological inoculum, and organic matter and other pollutants are removed in a targeted manner. The water body entering the third filter cavity 14 is filtered again through the first activated carbon module 21, and then enters the fourth filter cavity 16 through the third water inlet 20, the water body rises and is finally filtered through the second activated carbon module 18, and the water body purified by the second activated carbon module 18 is finally discharged through the purified water outlet 17. When filtering water, the sludge in the first sludge collecting hopper 27 and the second sludge collecting hopper 24 gradually precipitates, and the first sludge collecting hopper 27 and the second sludge collecting hopper 24 can be pumped out by using an external mud pumping pump 29 and pipeline. The accumulated pollutants at the bottom of the third filter cavity 14 and the fourth filter cavity 16 can also be discharged through the sewage outlet 19.

[0025] When the artificial wetland module is artificially maintained, the control valve at the side connection water inlet 13 can be opened, and the water body in the second filter cavity 30 can directly enter the third filter cavity 14 through the side connection water inlet 13.

[0026] The above embodiments of the present application are described in detail, but the content described can only be the preferred embodiments of the present application, and cannot be considered to limit the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the present patent.

Claims

1. A sewage composite filtering device, comprising a horizontal filtering box body, a first filtering cavity, a second filtering cavity, a third filtering cavity and a fourth filtering cavity arranged in series in the horizontal filtering box body, characterized in that: The first filtering cavity is internally provided with a conical filter grid in the upper part, and a first sludge collecting hopper in the lower part.

2. The sewage composite filtering device according to claim 1, characterized in that: The first filtering cavity and the second filtering cavity are provided with a first water outlet at a position higher than the first sludge collecting hopper.

3. The sewage composite filtering device according to claim 1, characterized in that: The second filtering cavity and the third filtering cavity are provided with a second water outlet at a position higher than the artificial wetland module.

4. The sewage composite filtering device according to claim 1, characterized in that: The third filtering cavity and the fourth filtering cavity are provided with a third water outlet at a position lower than the first activated carbon module.

5. The sewage composite filtering device according to claim 1, characterized in that: The fourth filtering cavity is provided with a second activated carbon module higher than the third water outlet.

6. The sewage composite filtering device according to claim 1, characterized in that: The first sludge collecting hopper and the second sludge collecting hopper are provided with a sludge outlet in the lower part.

7. The sewage composite filtering device according to claim 1, characterized in that: The sludge outlet is connected with the inlet of an external sludge pump by a pipeline. The third filtering cavity and the fourth filtering cavity are respectively provided with a sewage outlet in the bottom part. The artificial wetland module comprises a filter screen cloth laid on the water outlet plate, a gravel layer arranged on the filter screen cloth, a sand layer arranged on the gravel layer, a nutrient soil layer arranged on the sand layer, and vegetation planted above the nutrient soil layer. The nutrient soil layer is additionally provided with a plurality of bacteria feeders. The artificial wetland module is provided with an outer shell integrated with the water outlet plate. The outer shell is symmetrically provided with a pair of lifting lugs at the upper end. The conical filter grid is fixed with a lifting lug at the top end. The second filtering cavity and the third filtering cavity are provided with a bypass water outlet at a position higher than the first activated carbon module and lower than the water outlet plate. The bypass water outlet is provided with a control valve.

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