Sewage filtering device for environmental protection engineering

Abstract

The utility model discloses a sewage filtering device for environmental protection engineering, which mainly comprises a main body structure, an impurity receiving structure and a plugging structure, a main body structure comprises a filter cartridge, a support frame fixedly connected with the bottom of the filter cartridge, four support legs fixedly connected with the bottom of the support frame, a big-end-up circular truncated cone groove type filter screen fixedly connected with the interior of the filter cartridge, and a slag discharge pipe fixedly communicated with the bottom of the circular truncated cone groove type filter screen, the impurity receiving structure is connected with the supporting legs and the drainage pipe, and is used for receiving impurities discharged from the slag discharging pipe, filtering water contained in the impurities and introducing the filtered water into the drainage pipe, the plugging structure is fixedly connected with the top of the filter cartridge, and the plugging structure is fixedly connected with the bottom of the filter cartridge. The plugging device is used for plugging the deslagging pipe during deslagging. According to the utility model, impurities in the circular truncated cone groove-shaped filter screen can be conveniently cleaned, and the filtering operation does not need to be interrupted during cleaning, so that the overall filtering efficiency is not easily influenced during impurity cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection engineering, in particular to a sewage filtering device for environmental protection engineering. Background Art

[0002] With the acceleration of urbanization, the discharge of urban sewage has increased rapidly, and the water pollution situation is severe, which is becoming an important factor restricting development. Sewage treatment is an important part of water pollution control. In the process of sewage treatment, sewage filtration is an indispensable process. Urban sewage contains a lot of solid matter, and most of the solid matter needs to be removed before subsequent treatment.

[0003] In the process of filtering sewage, a large amount of solid impurities often accumulate quickly on the filter screen of the existing sewage filtration device. In order to maintain the filtering effect and efficiency, the operator usually has to frequently disassemble the device to clean the filter screen. However, due to the high content of solid impurities in the sewage, the cleaning cycle becomes very short, and the filtering operation must be suspended each time the cleaning is performed, which affects the overall filtering efficiency. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a sewage filtering device for environmental protection engineering, mainly comprising a main structure, an impurity receiving structure and a blocking structure, the main structure comprising a filter cartridge, a support frame fixedly connected to the bottom of the filter cartridge, four support legs fixedly connected to the bottom of the support frame, a truncated cone trough filter screen with a larger top and a smaller bottom fixedly connected to the inside of the filter cartridge, a slag discharge pipe fixedly connected to the bottom of the truncated cone trough filter screen, a water diversion assembly fixedly connected to the top of the filter cartridge, and a drain pipe fixedly connected to the bottom of one side of the filter cartridge, a valve is installed on the slag discharge pipe, the impurity receiving structure is connected to the support legs and the drain pipe, and is used to receive impurities discharged from the slag discharge pipe, and filter the water contained in the impurities and introduce it into the drain pipe, the blocking structure is fixedly connected to the top of the filter cartridge, and is used to block the slag discharge pipe during slag discharge.

[0006] As a preferred solution of the sewage filtering device for environmental protection engineering described in the utility model, the water diversion assembly includes an annular tube located above the filter cartridge, a water inlet pipe fixedly connected to one side of the annular tube, and a plurality of water spray pipes fixedly connected to the bottom of the annular tube, wherein the plurality of water spray pipes are arranged in an annular array, and the plurality of water spray pipes are fixedly connected to the top of the filter cartridge.

[0007] As a preferred solution of the sewage filtering device for environmental protection engineering described in the utility model, wherein: the impurity receiving structure includes a bearing plate fixedly connected to the supporting legs, a receiving box is fixedly installed at the top of the bearing plate corresponding to the slag discharge pipe, a filter screen plate is adapted to be engaged in the receiving box, a hanging bracket is symmetrically fixed on the top of the filter screen plate, the upper part of the hanging bracket is engaged with the top of the receiving box, a recovery pipe is fixedly connected to the bottom of the receiving box on one side facing the drain pipe, and the recovery pipe is fixedly connected to the drain pipe at one end away from the receiving box.

[0008] As a preferred solution of the sewage filtering device for environmental protection engineering described in the utility model, the sealing structure includes a sealing block located directly above the slag discharge pipe, a bracket fixedly connected to the top of the filter cartridge, a cylinder fixedly connected to the top of the bracket, and a lifting rod fixedly connected to the top of the sealing block, the top end of the lifting rod slides out of the filter cartridge and is fixedly connected to a positioning plate, and the piston end of the cylinder is fixedly connected to the top of the positioning plate.

[0009] As a preferred solution of the sewage filtering device for environmental protection engineering described in the utility model, the blocking block includes a blocking column and a truncated cone-shaped protrusion fixedly connected to the top of the blocking column, and the top of the truncated cone-shaped protrusion is fixedly connected to the bottom end of the lifting rod.

[0010] As a preferred solution of the sewage filtering device for environmental protection engineering described in the utility model, wherein: the blocking column and the slag discharge pipe are arranged correspondingly, and the diameter of the blocking column is consistent with the inner diameter of the slag discharge pipe.

[0011] Beneficial effects of the utility model:

[0012] 1. The utility model can collect the filtered fixed impurities in the slag discharge pipe at the bottom of the truncated cone trough filter by arranging a truncated cone trough filter, which is not easy to cause clogging of the truncated cone trough filter, and thus is not easy to affect the sewage filtering effect and efficiency; when the fixed impurities in the slag discharge pipe need to be discharged, the positioning plate is driven downward by the cylinder, and the positioning plate drives the blocking block to move downward through the lifting rod, so that the blocking block blocks the top of the slag discharge pipe, and then the valve on the slag discharge pipe is opened to discharge the fixed impurities in the slag discharge pipe into the receiving box. After the discharge, the valve is closed, and the blocking block is driven upward by the cylinder to move back to its original position, so that the filtered fixed impurities are collected in the slag discharge pipe again. The whole process does not need to interrupt the filtering operation, which is not easy to affect the overall filtering efficiency.

[0013] 2. In the utility model, the fixed impurities discharged through the slag discharge pipe fall into the collection box and are filtered again through the filter screen. The water in the fixed impurities can be filtered out and introduced into the drain pipe through the recovery pipe, and then enters the next water treatment along the drain pipe, which is not easy to cause waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the utility model when sealing the slag discharge pipe.

[0018] Figure 4 It is a structural schematic diagram of the water diversion component of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the impurity receiving structure of the utility model.

[0020] Figure 6 It is a structural schematic diagram of the blocking structure of the utility model.

[0021] In the figure: 100, main structure; 101, filter cartridge; 102, support frame; 103, support leg; 104, truncated cone trough filter; 105, slag discharge pipe; 106, water diversion assembly; 106-1, annular pipe; 106-2, water inlet pipe; 106-3, water spray pipe; 107, drain pipe; 200, impurity receiving structure; 201, bearing plate; 202, receiving box; 203, filter screen plate; 204, hanging bracket; 205, recovery pipe; 300, blocking structure; 301, blocking block; 301-1, blocking column; 301-2, truncated cone protrusion; 302, bracket; 303, cylinder; 304, lifting rod; 305, positioning plate. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Reference Figure 1-6 The utility model provides a sewage filtering device for environmental protection engineering, which mainly includes:

[0027] The main structure 100, such as Figure 1-2 The main structure 100 includes a filter cartridge 101, a support frame 102 fixedly connected to the bottom of the filter cartridge 101, four support legs 103 fixedly connected to the bottom of the support frame 102, a truncated cone trough filter screen 104 with a larger top and a smaller bottom fixedly connected to the inside of the filter cartridge 101, a slag discharge pipe 105 fixedly connected to the bottom of the truncated cone trough filter screen 104, a water diversion assembly 106 fixedly connected to the top of the filter cartridge 101, and a drain pipe 107 fixedly connected to the bottom of one side of the filter cartridge 101, and a valve is installed on the slag discharge pipe 105; wherein, by providing the truncated cone trough filter screen 104, fixed impurities are not easily accumulated on the side of the truncated cone trough filter screen 104, but are easily gathered in the slag discharge pipe 105 at the bottom of the truncated cone trough filter screen 104 under the impact of water flow, so that the truncated cone trough filter screen 104 is not easily blocked, thereby ensuring the filtering effect of sewage;

[0028] The impurity receiving structure 200, such as Figure 2 The impurity receiving structure 200 is connected with the support leg 103 and the drain pipe 107, and is used to receive the impurities discharged from the slag discharge pipe 105, and filter the water contained in the impurities and introduce it into the drain pipe 107, and enter the next water treatment operation through the drain pipe 107, which is not easy to cause water resource waste;

[0029] The blocking structure 300, such as Figure 2The blocking structure 300 is fixedly connected to the top of the filter cartridge 101 and is used to block the slag discharge pipe 105 during slag discharge to prevent a large amount of sewage from being discharged during the slag discharge process.

[0030] Specifically, Figure 4 The water diversion assembly 106 includes an annular tube 106-1 located above the filter cartridge 101, a water inlet pipe 106-2 fixedly connected to one side of the annular tube 106-1, and four water spray pipes 106-3 fixedly connected to the bottom of the annular tube 106-1. The four water spray pipes 106-3 are arranged in an annular array, and the four water spray pipes 106-3 are all fixedly connected to the top of the filter cartridge 101. By setting up the four water spray pipes 106-3, sewage can be sprayed to multiple positions of the conical trough filter screen 104, so that fixed impurities are not easily accumulated on the side of the conical trough filter screen 104 under the impact of the water flow.

[0031] Specifically, Figure 5 The impurity receiving structure 200 includes a bearing plate 201 fixedly connected to the supporting leg 103 by bolts, a receiving box 202 is fixedly installed at the top of the bearing plate 201 corresponding to the slag discharge pipe 105 by bolts, a filter screen plate 203 is adapted to be engaged in the receiving box 202, a pair of hanging frames 204 are symmetrically fixed to the top of the filter screen plate 203, and the upper part of the hanging frame 204 is engaged with the top of the receiving box 202. The advantage of this arrangement is that the receiving box 202 can be easily fixed by a pair of hanging frames 204. And through a pair of hanging brackets 204, the filter plate 203 can be easily taken out from the receiving box 202, so as to facilitate the cleaning of the filter plate 203. A recovery pipe 205 is fixedly connected to the bottom of the receiving box 202 on the side facing the drain pipe 107. The end of the recovery pipe 205 away from the receiving box 202 is fixedly connected to the drain pipe 107, so that the water filtered out from the fixed impurities can be discharged into the drain pipe 107, and then enters the next water treatment together with the filtered water in the drain pipe 107, which is not easy to cause waste of resources.

[0032] Specifically, Figure 6The sealing structure 300 includes a sealing block 301 located directly above the slag discharge pipe 105, a bracket 302 fixedly connected to the top of the filter cartridge 101 by bolts, a cylinder 303 fixedly connected to the top of the bracket 302 by bolts, and a lifting rod 304 fixedly connected to the top of the sealing block 301. The top of the lifting rod 304 slides out of the filter cartridge 101 and is fixedly connected to a positioning plate 305. The piston end of the cylinder 303 is fixedly connected to the top of the positioning plate 305 by bolts. When it is necessary to discharge the fixed impurities in the slag discharge pipe 105, the positioning plate 305 is first driven downward by the cylinder 303, and the positioning plate 305 drives the sealing block 301 to move downward through the lifting rod 304. When the positioning plate 305 contacts the top of the filter cartridge 101, the cylinder 303 is closed. At this time, the sealing block 301 is blocked at the top of the slag discharge pipe 105. The purpose of this arrangement is to prevent a large amount of sewage from being discharged along with the fixed impurities after the valve on the slag discharge pipe 105 is opened.

[0033] Furthermore, Figure 6 The blocking block 301 includes a blocking column 301-1 and a truncated cone-shaped protrusion 301-2 fixedly connected to the top of the blocking column 301-1. The top of the truncated cone-shaped protrusion 301-2 is fixedly connected to the bottom end of the lifting rod 304. The blocking column 301-1 is arranged corresponding to the slag discharge pipe 105, and the diameter of the blocking column 301-1 is consistent with the inner diameter of the slag discharge pipe 105. By setting the truncated cone-shaped protrusion 301-2, after the slag discharge pipe 105 is blocked, the newly filtered fixed impurities are not easy to accumulate on the top of the blocking block 301, and then after the blockage of the slag discharge pipe 105 is released, the fixed impurities can slide from the top of the blocking block 301 and fall into the slag discharge pipe 105.

[0034] In summary, when in use, the sewage is introduced into the annular pipe 106-1 through the water inlet pipe 106-2, and then introduced into multiple water inlet pipes 106-2 through the annular pipe 106-1, and sprayed to different positions of the conical trough filter 104 through multiple water inlet pipes 106-2. The conical trough filter 104 is used to filter out fixed impurities in the sewage. The filtered fixed impurities are collected at the bottom of the conical trough filter 104 under the impact of water flow and fall into the slag discharge pipe 105. The filtered water enters the next water treatment process through the drain pipe 107. The overall operation is simple, and it is not easy to cause blockage of the conical trough filter 104, which is not easy to affect the sewage filtration effect and efficiency. When it is necessary to discharge the fixed impurities in the slag discharge pipe 105, the cylinder 303 is first used to drive the positioning plate 305 to move downward, and the positioning plate 305 drives the blocking block 301 to move downward through the lifting rod 304. When the positioning plate 305 contacts the top of the filter cartridge 101, the cylinder 303 is closed. At this time, the blocking column 301-1 at the bottom of the blocking block 301 is engaged with the top of the slag discharge pipe 105, and then the valve on the slag discharge pipe 105 is opened, and the fixed impurities fall into the receiving box 202 under the action of gravity, and then are filtered through the filter screen plate 203, and the filtered water enters the drainage through the recovery pipe 205. The filtered water in the drain pipe 107 enters the next water treatment process, which is not easy to cause waste of water resources. After the fixed impurities in the slag discharge pipe 105 are discharged, the valve on the slag discharge pipe 105 is closed, and then the positioning plate 305 is driven by the cylinder 303 to move upward, and the positioning plate 305 drives the lifting rod 304 to move upward, and the lifting rod 304 drives the blocking block 301 to move upward and reset, thereby releasing the blockage of the slag discharge pipe 105, and the filtered fixed impurities are gathered in the slag discharge pipe 105 again. The whole process does not need to interrupt the filtering operation, so it is not easy to affect the overall filtering efficiency.

[0035] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A sewage filtering device for environmental protection engineering, characterized in that: include: A main structure (100), the main structure (100) comprising a filter cartridge (101), a support frame (102) fixedly connected to the bottom of the filter cartridge (101), four support legs (103) fixedly connected to the bottom of the support frame (102), a truncated cone trough filter screen (104) fixedly connected to the inside of the filter cartridge (101) and having a larger top and a smaller bottom, a slag discharge pipe (105) fixedly connected to the bottom of the truncated cone trough filter screen (104), a water diversion assembly (106) fixedly connected to the top of the filter cartridge (101), and a drainage pipe (107) fixedly connected to the bottom of one side of the filter cartridge (101), wherein a valve is installed on the slag discharge pipe (105); an impurity receiving structure (200), the impurity receiving structure (200) being connected to the support leg (103) and the drainage pipe (107), and being used to receive impurities discharged from the slag discharge pipe (105), and to filter water contained in the impurities and introduce it into the drainage pipe (107); A plugging structure (300) is fixedly connected to the top of the filter cartridge (101) and is used to plug the slag discharge pipe (105) during slag discharge.

2. The sewage filtering device for environmental protection engineering as claimed in claim 1, characterized in that: The water diversion assembly (106) comprises an annular tube (106-1) located above the filter cartridge (101), a water inlet pipe (106-2) fixedly connected to one side of the annular tube (106-1), and a plurality of water spray pipes (106-3) fixedly connected to the bottom of the annular tube (106-1), wherein the plurality of water spray pipes (106-3) are arranged in an annular array, and the plurality of water spray pipes (106-3) are all fixedly connected to the top of the filter cartridge (101).

3. The sewage filtering device for environmental protection engineering as claimed in claim 1, characterized in that: The impurity receiving structure (200) comprises a bearing plate (201) fixedly connected to the supporting leg (103); a receiving box (202) is fixedly installed on the top of the bearing plate (201) at a position corresponding to the slag discharge pipe (105); a filter screen plate (203) is adapted to be engaged in the receiving box (202); a hanging frame (204) is symmetrically fixed to the top of the filter screen plate (203); the upper part of the hanging frame (204) is engaged with the top of the receiving box (202); a recovery pipe (205) is fixedly connected to the bottom of a side of the receiving box (202) facing the drain pipe (107); and one end of the recovery pipe (205) away from the receiving box (202) is fixedly connected to the drain pipe (107).

4. The sewage filtering device for environmental protection engineering as claimed in claim 1, characterized in that: The blocking structure (300) comprises a blocking block (301) located directly above the slag discharge pipe (105), a bracket (302) fixedly connected to the top of the filter cartridge (101), a cylinder (303) fixedly connected to the top of the bracket (302), and a lifting rod (304) fixedly connected to the top of the blocking block (301); the top end of the lifting rod (304) slides out of the filter cartridge (101) and is fixedly connected to a positioning plate (305); and the piston end of the cylinder (303) is fixedly connected to the top of the positioning plate (305).

5. The sewage filtering device for environmental protection engineering as claimed in claim 4, characterized in that: The blocking block (301) comprises a blocking column (301-1) and a truncated cone-shaped protrusion (301-2) fixedly connected to the top of the blocking column (301-1); the top of the truncated cone-shaped protrusion (301-2) is fixedly connected to the bottom end of the lifting rod (304).

6. The sewage filtering device for environmental protection engineering as claimed in claim 5, characterized in that: The blocking column (301-1) is arranged corresponding to the slag discharge pipe (105), and the diameter of the blocking column (301-1) is consistent with the inner diameter of the slag discharge pipe (105).

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