Water supply and drainage sewage pretreatment device

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a water supply and drainage sewage pretreatment device which comprises a box body, four clamping grooves are formed in the left side and the right side of the box body, and the sewage pretreatment device further comprises a partition plate fixedly installed on the inner wall of the box body; the number of the filter screens is two, and the bottom ends of the two filter screens can be separately inserted into the box body; the two ends of the right side of the water inlet three-way pipe are fixedly communicated with the left side of the box body; the number of the first valves is two, and the two first valves are both fixedly installed on the water inlet three-way pipe; according to the utility model, the filter screen can be quickly disassembled and assembled through a simple structure, the filter screen can be conveniently maintained, meanwhile, the filter screen can be disassembled, assembled and replaced under the non-stop condition, the sewage treatment efficiency is improved, the operation is convenient, and the practicability is strong.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a pretreatment device for water supply and drainage wastewater. Background Technology

[0002] Water supply and drainage engineering: Engineering projects used for water supply, wastewater discharge, and water quality improvement. It is divided into water supply engineering and drainage engineering. In ancient times, water supply and drainage engineering simply transported water to cities and discharged rainwater and sewage. Modern water supply and drainage engineering developed to control the spread of infectious diseases such as typhoid fever, cholera, and dysentery in cities and to adapt to industrial and urban development. Modern water supply and drainage engineering has become a basic facility for controlling the spread of waterborne infectious diseases and environmental water pollution, and is one of the essential infrastructures for urban and industrial development, as well as a major component of municipal engineering.

[0003] In the prior art, Chinese patent document with application number 202322797857.8 discloses a municipal water supply and drainage sewage pretreatment device, which relates to the field of sewage treatment technology. This municipal water supply and drainage sewage pretreatment device includes: a box, an inlet, and a locking block. The box is fixedly connected to the inlet, and the box is movably locked to the locking block. An outlet is fixedly connected to the right surface of the box. A cylinder is provided on the front surface of the box. An annular groove and two holes are opened on the upper surface of the box, and a limiting groove is opened through them. A limiting groove three is opened on the side wall of the hole. The present invention has an inlet and an outlet respectively provided on the left and right sides of the box. A cylinder is provided on the front surface of the box. A round block is fixedly connected to the output shaft of the cylinder. A fixing block is fixedly connected to the end of the round block away from the cylinder. A scraper is provided on the right surface of the fixing block. The scraper is attached to the filter screen. When the cylinder is started, it will drive the scraper to move back and forth in a straight line on the filter screen.

[0004] However, the above-mentioned technical solutions require machine shutdown when replacing the filter screen, during which normal sewage discharge and pretreatment cannot be carried out, thereby reducing the efficiency of the water supply and drainage sewage pretreatment device and failing to meet the usage requirements. Therefore, this application proposes a water supply and drainage sewage pretreatment device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where replacing the filter screen requires machine shutdown, during which normal sewage discharge and pretreatment cannot be carried out, thus reducing the efficiency of the water supply and drainage sewage pretreatment device and failing to meet usage requirements. Therefore, this invention proposes a water supply and drainage sewage pretreatment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wastewater pretreatment device includes a housing, with four slots provided on both the left and right sides of the housing. The wastewater pretreatment device also includes:

[0008] A partition, which is fixedly installed on the inner wall of the box;

[0009] The filter screen is provided in two parts, and the bottom ends of both filter screens can be detached and inserted into the inside of the housing;

[0010] The water inlet tee pipe has its right ends fixedly connected to the left side of the box body;

[0011] The first valve is provided in two parts, and both first valves are fixedly installed on the inlet tee pipe;

[0012] A drain tee, the two ends of which are fixedly connected to the right side of the box body;

[0013] The second valve is provided in two parts, and both second valves are fixedly installed on the drain tee pipe;

[0014] The enclosure has two sealing doors, each hinged to the top of the enclosure at the opposite end.

[0015] The card mounting components are configured in two, and each card mounting component is respectively matched with two corresponding card slots.

[0016] As a preferred embodiment of this utility model, the interior of the box is provided with a first processing area and a second processing area.

[0017] As a preferred embodiment of this utility model, the front inner wall, the rear inner wall, the front and rear sides of the partition are all provided with limiting grooves, and the bottom end of the filter screen can be detached and inserted into the corresponding two limiting grooves.

[0018] In a preferred embodiment of this utility model, the mounting assembly includes a rotating shaft, a turntable, a torsion spring, two connecting rods, two locking rods, and two slip rings. The bottom end of the rotating shaft is rotatably connected to the top of the corresponding sealing door. The turntable is fixedly sleeved on the rotating shaft. The torsion spring is sleeved on the rotating shaft, with its bottom end fixedly installed on the top of the sealing door and its top end fixedly installed on the bottom of the turntable. The ends of the two connecting rods that are close to each other are rotatably connected to the top of the turntable, and the ends of the two connecting rods that are far from each other are rotatably connected to the ends of the two locking rods that are close to each other. The slip rings are slidably sleeved on the corresponding locking rods, with the bottoms of the two slip rings fixedly installed on the top of the corresponding sealing door. The other end of the locking rod can be disengaged and inserted into the corresponding locking groove.

[0019] In a preferred embodiment of this utility model, a spring is sleeved on the clamp rod, one end of the spring is fixedly installed on the corresponding slip ring, and the other end of the spring is fixedly installed on the clamp rod.

[0020] As a preferred embodiment of this utility model, a knob is fixedly installed at the top of the rotating shaft.

[0021] Beneficial effects:

[0022] 1. By installing a partition inside the tank, the interior of the tank can be divided into two sewage treatment areas. When sewage is introduced into the inlet tee, closing the first valve on the rear side and opening the first valve on the front side allows the sewage to flow only into the front area of ​​the tank. Here, the sewage is filtered by the filter screen in the front area and discharged through the drain tee. At this time, the second valve on the rear side is closed and the second valve on the front side is open, which makes it convenient to disassemble and maintain the filter screen on the rear side. Conversely, it makes it convenient to disassemble and maintain the filter screen on the front side.

[0023] 2. By rotating the shaft, the turntable can be driven to rotate. At the same time, the torsion spring is twisted and subjected to force. Then, the turntable can drive the two connecting rods away from each other and drive the two locking rods away from each other. At this time, the locking rods can be released from the locking groove, thereby opening the corresponding sealing door to facilitate the disassembly and maintenance of the corresponding filter screen. By using the reverse operation of the above structure, the corresponding sealing door can be installed and fixed.

[0024] This invention enables quick assembly and disassembly of the filter screen through a simple structure, facilitating filter screen maintenance. It also allows for filter screen replacement without shutting down the system, improving wastewater treatment efficiency. Furthermore, it is easy to operate and highly practical. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a top sectional view of the structure of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the sealing door, rotating shaft, turntable, torsion spring, knob, connecting rod, locking rod, slip ring, and spring of this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the rotating shaft, turntable, torsion spring, knob, and connecting rod of this utility model.

[0029] In the diagram: 1. Box body; 101. First processing zone; 102. Second processing zone; 2. Limiting groove; 3. Filter screen; 4. Water inlet tee pipe; 5. First valve; 6. Drain tee pipe; 7. Second valve; 8. Slot; 9. Sealing door; 10. Rotating shaft; 11. Turntable; 12. Torsion spring; 13. Knob; 14. Connecting rod; 15. Locking rod; 16. Slip ring; 17. Spring; 18. Partition. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example

[0032] Reference Figures 1-4 A wastewater pretreatment device includes a housing 1, with slots 8 on both the left and right sides of the housing 1, and the number of slots 8 is four. The wastewater pretreatment device also includes:

[0033] Partition 18 is fixedly installed on the inner wall of the box 1;

[0034] The filter screen 3 is provided in two parts, and the bottom ends of both filter screens 3 can be detached and inserted into the inside of the housing 1;

[0035] Water inlet tee pipe 4, both ends of the right side of water inlet tee pipe 4 are fixedly connected to the left side of the box body 1;

[0036] There are two first valves 5, and both first valves 5 are fixedly installed on the inlet tee pipe 4.

[0037] Drainage tee 6, both ends of the left side of the drainage tee 6 are fixedly connected to the right side of the box 1;

[0038] The second valve 7 is provided in two parts, and both second valves 7 are fixedly installed on the drain tee pipe 6;

[0039] Two sealing doors 9 are provided, and the ends of the two sealing doors 9 that are far apart from each other are hinged to the top of the box body 1.

[0040] The card-mounting component is configured in two parts, and each card-mounting component is respectively matched with the two corresponding card slots 8.

[0041] With the above structure, by setting a partition 18 inside the tank 1, the inside of the tank 1 can be divided into two sewage treatment areas. When sewage is input into the inlet tee pipe 4, the first valve 5 on the rear side is closed and the first valve 5 on the front side is opened, so that the sewage can only flow into the front area of ​​the tank 1. Here, the sewage is filtered by the filter screen 3 in the front area and discharged through the drain tee pipe 6. At this time, the second valve 7 on the rear side is closed and the second valve 7 on the front side is open. This makes it convenient to disassemble and maintain the filter screen 3 on the rear side. Conversely, it makes it convenient to disassemble and maintain the filter screen 3 on the front side. In this way, the filter screen 3 can be disassembled and replaced without stopping the machine, which improves the efficiency of sewage treatment and is easy to operate and highly practical.

[0042] As a preferred embodiment of this utility model, the interior of the housing 1 is provided with a first processing area 101 and a second processing area 102. By providing the first processing area 101 and the second processing area 102 inside the housing 1, when replacing or cleaning a single filter screen 3, the filter screen 3 can be replaced by switching between different processing areas without affecting the normal operation of sewage treatment.

[0043] As a preferred embodiment of this utility model, the front inner wall, the rear inner wall, the front and rear sides of the partition 18 are all provided with limiting grooves 2. The bottom end of the filter screen 3 can be detached and inserted into the corresponding two limiting grooves 2. By providing limiting grooves 2, the filter screen 3 can be stably installed and limited.

[0044] In a preferred embodiment of this utility model, the mounting assembly includes a rotating shaft 10, a turntable 11, a torsion spring 12, two connecting rods 14, two locking rods 15, and two slip rings 16. The bottom end of the rotating shaft 10 is rotatably connected to the top of the corresponding sealing door 9. The turntable 11 is fixedly sleeved on the rotating shaft 10. The torsion spring 12 is sleeved on the rotating shaft 10, with its bottom end fixedly installed on the top of the sealing door 9 and its top end fixedly installed on the bottom of the turntable 11. The ends of the two connecting rods 14 that are close to each other are rotatably connected to the top of the turntable 11, and the ends of the two connecting rods 14 that are far apart from each other are rotatably connected to the ends of the two locking rods 15 that are close to each other. The slip rings 16 slide. The two slip rings 16 are fixedly installed on the top of the corresponding sealing door 9 and sleeved on the corresponding clamp rod 15. The other end of the clamp rod 15 can be disengaged and inserted into the corresponding slot 8. By rotating the shaft 10, the turntable 11 can be driven to rotate, and the torsion spring 12 is twisted and subjected to force. Then the turntable 11 can drive the two connecting rods 14 away from each other and drive the two clamp rods 15 away from each other. At this time, the clamp rod 15 can be released from the slot 8, so that the corresponding sealing door 9 can be opened to facilitate the disassembly and maintenance of the corresponding filter screen 3. Here, by using the reverse operation of the above structure, the corresponding sealing door 9 can be installed and fixed.

[0045] As a preferred embodiment of this utility model, a spring 17 is sleeved on the locking rod 15. One end of the spring 17 is fixedly installed on the corresponding slip ring 16, and the other end of the spring 17 is fixedly installed on the locking rod 15. By setting the spring 17, the locking rod 15 can be moved and reset.

[0046] As a preferred embodiment of this utility model, a knob 13 is fixedly installed at the top of the rotating shaft 10. By setting the knob 13, it is convenient for personnel to drive the rotating shaft 10 to rotate and to unlock the two locking rods 15 and the locking groove 8. At the same time, it is convenient for personnel to open and close the sealing door 9.

[0047] The working principle of this utility model is as follows: In use, by first installing a partition 18 inside the tank 1, the interior of the tank 1 can be divided into two sewage treatment areas. When sewage is introduced into the tank via the inlet tee pipe 4, the first valve 5 on the rear side is closed and the first valve 5 on the front side is opened, allowing sewage to flow only into the front area of ​​the tank 1. Here, the sewage is filtered by the filter screen 3 in the front area and then discharged through the drain tee pipe 6. At this time, the second valve 7 on the rear side is closed and the second valve 7 on the front side is open, facilitating the disassembly and maintenance of the filter screen 3 on the rear side. Conversely, the second valve 7 on the front side is open, facilitating the disassembly and maintenance of the filter screen 3 on the front side. This method allows for the removal and replacement of the filter screen 3 without shutting down the machine, improving the efficiency of sewage treatment. It is also convenient to operate and highly practical. By rotating the shaft 10, the turntable 11 can be rotated, and the torsion spring 12 is twisted and subjected to force. The turntable 11 can then drive the two connecting rods 14 away from each other and the two locking rods 15 away from each other. This allows the locking rods 15 to be released from the locking groove 8, thereby opening the corresponding sealing door 9 to facilitate the removal and maintenance of the filter screen 3. By using the reverse operation of the above structure, the corresponding sealing door 9 can be installed and fixed.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water supply and drainage sewage pretreatment device, comprising a box (1), the left side and the right side of the box (1) are provided with clamping grooves (8), the number of clamping grooves (8) is four, characterized in that, The sewage pretreatment device further comprises: A partition plate (18) is fixedly installed on the inner wall of the box (1); Two filter screens (3) are arranged, and the bottom ends of the two filter screens (3) are detachably inserted into the box (1); A water inlet tee pipe (4) is fixedly communicated with the left side of the box (1); Two first valves (5) are fixedly installed on the water inlet tee pipe (4); A water outlet tee pipe (6) is fixedly communicated with the right side of the box (1); Two second valves (7) are fixedly installed on the water outlet tee pipe (6); Two sealing doors (9) are hingedly connected to the top end of the box (1); Two clamping assemblies are arranged and matched with the two clamping grooves (8) respectively.

2. The water supply and drainage sewage pretreatment device according to claim 1, characterized in that, The inside of the box (1) is provided with a first treatment area (101) and a second treatment area (102).

3. The water supply and drainage sewage pre-treatment device according to claim 1, characterized in that, The front inner wall, the rear inner wall, the front side of the partition plate (18) and the rear side of the box (1) are all provided with limiting grooves (2), and the bottom ends of the filter screens (3) are detachably inserted into the two limiting grooves (2).

4. The water supply and drainage sewage pre-treatment device according to claim 1, characterized in that, The clamping assembly comprises a rotating shaft (10), a rotating disc (11), a torsional spring (12), two connecting rods (14), two clamping rods (15) and two sliding rings (16), the bottom end of the rotating shaft (10) is rotatably connected to the top of the corresponding sealing door (9), the rotating disc (11) is fixedly sleeved on the rotating shaft (10), the torsional spring (12) is sleeved on the rotating shaft (10), the bottom end of the torsional spring (12) is fixedly installed on the top of the sealing door (9), the top end of the torsional spring (12) is fixedly installed on the bottom of the rotating disc (11), the two connecting rods (14) are rotatably connected to the top of the rotating disc (11) at the ends close to each other, the two connecting rods (14) are rotatably connected to the ends close to each other of the two clamping rods (15) at the ends away from each other, the sliding ring (16) is slidably sleeved on the corresponding clamping rod (15), the bottom of the two sliding rings (16) is fixedly installed on the top of the corresponding sealing door (9), and the other end of the clamping rod (15) is detachably inserted into the corresponding clamping groove (8).

5. The water supply and drainage sewage pre-treatment device according to claim 4, characterized in that, A spring (17) is sleeved on the clamping rod (15), one end of the spring (17) is fixedly installed on the corresponding sliding ring (16), and the other end of the spring (17) is fixedly installed on the clamping rod (15).

6. The water supply and drainage sewage pre-treatment device according to claim 4, characterized in that, A knob (13) is fixedly installed on the top end of the rotating shaft (10).

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