Grid equipment for domestic wastewater treatment

Abstract

The utility model relates to grid equipment for domestic wastewater treatment in the field of wastewater treatment. The grid equipment comprises an upper shell and a lower shell which is detachably connected with the upper shell, the filter grating is connected between the upper shell and the lower shell, the upper shell is fixedly communicated with a liquid inlet pipe, and the lower shell is fixedly communicated with a liquid discharge pipe; the upper shell is fixedly connected with the lower shell, the inserting block is fixedly connected with the lower shell, an inserting groove corresponding to the inserting block is formed in the upper shell, and the inserting block is inserted into the inserting groove, so that the upper shell and the lower shell are quickly connected and detached, and compared with traditional bolt connection, tools are not needed, the mounting and detaching time is greatly shortened, and the operation convenience is improved; and the labor intensity and the working time of workers during equipment maintenance and cleaning are reduced, impurities intercepted on the filtering grating can be conveniently and regularly cleaned, and when the filtering grating is damaged, the filtering grating can be conveniently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of grid equipment for domestic wastewater treatment, in particular to a kind of grid equipment for domestic wastewater treatment applied to wastewater treatment field. BACKGROUND

[0002] In the process of domestic wastewater treatment, as the key equipment of pretreatment, the role of grid equipment is to intercept floating matter and suspended matter in wastewater, to prevent it from causing blockage and damage to subsequent treatment equipment.

[0003] Chinese utility model patent CN202122884662.8 specification discloses a kind of wastewater treatment filter device with grid structure, including sewage feed tank and grid filter separation device;Grid filter separation device is fixedly installed at the bottom of sewage feed tank;Grid filter separation device further includes waste collection tank, grid guide device, grid filter device, synchronous drive device;Grid guide device is fixedly installed at the input end of waste collection tank;Grid filter device is fixedly installed above grid guide device, the input end of grid filter device is communicated with the bottom of water feed tank;Synchronous drive device is rotatably installed at the side of waste collection tank, and the working end of synchronous drive device is connected with grid guide device and grid filter device transmissionally.

[0004] The above-mentioned patent, since grid filter device is fixedly installed above grid guide device, and grid guide device is fixedly installed at the input end of waste collection tank, when the components of grid filter device are damaged, it is inconvenient to disassemble and replace the components of grid filter device;

[0005] In addition, the traditional domestic wastewater treatment grid equipment currently uses bolt connection upper and lower shell in structural design, this connection mode requires workers to use wrench and other tools every time when installing and disassembling equipment, the operation process is complicated and time-consuming, especially when frequent maintenance cleaning or replacing components are needed, a large amount of time is spent on screwing bolts, which greatly reduces work efficiency. SUMMARY

[0006] For the above prior art, the technical problem to be solved by the utility model is that the upper and lower shells are difficult to disassemble, which makes the cleaning work of impurities intercepted on the filter grid extremely inconvenient.

[0007] In order to solve the above problems, the utility model provides a kind of grid equipment for domestic wastewater treatment, including upper shell and with upper shell disassembly connection lower shell;Filter grid is connected between upper shell and lower shell, wherein, upper shell is fixedly connected with liquid inlet pipe, lower shell is fixedly connected with liquid outlet pipe;Plug-in block is fixedly connected on lower shell, wherein, upper shell is provided with the plug-in slot corresponding with plug-in block, plug-in block is inserted into plug-in slot, plug-in block is provided with sliding slot, fixed block is slidably connected in sliding slot, the upper end surface of fixed block is inclined, and fixed block is clamped on the surface of upper shell;Spring is arranged in sliding slot, one end of spring is fixedly connected with fixed block, and the other end is fixedly connected with the inner wall of sliding slot.

[0008] In the grid equipment for domestic wastewater treatment, the upper and lower shells can be conveniently disassembled and assembled, which facilitates the regular cleaning of impurities intercepted on the filter grid.

[0009] As a further improvement of the present application, the fixed block is fixedly connected with a pull rope, and one end of the pull rope penetrating the sliding slot is fixedly connected with a pull ring.

[0010] As a further improvement of the present application, the upper shell and the lower shell are both provided with clamping grooves, and the filter grid is clamped in the clamping grooves.

[0011] As a further improvement of the present application, the inner wall of the lower shell is symmetrically fixedly connected with sliding rods, the sliding rods are slidably connected with sliding blocks, the sliding blocks are provided with gas delivery cavities, the sliding blocks are provided with gas injection holes in communication with the gas delivery cavities, and the sliding blocks are provided with gas delivery pipes in communication with the gas delivery cavities.

[0012] As a further improvement of the present application, the lower shell is fixedly connected with a booster pump, one end of the gas delivery pipe away from the gas delivery cavity is fixedly connected with the output end of the booster pump, and the input end of the booster pump is provided with a filter screen.

[0013] As a further improvement of the present application, the inner wall of the lower shell is rotatably connected with a reciprocating screw rod, the sliding blocks are threadedly connected with the reciprocating screw rod, the lower shell is fixedly connected with a motor, and the reciprocating screw rod is fixedly connected with the output end of the motor.

[0014] As a further improvement of the present application, the gas outlet end of the gas injection hole is smaller than the gas inlet end.

[0015] In summary, the plug-in block and the fixed block cooperate with the spring to realize the quick connection and disassembly of the upper and lower shells, which does not require tools, greatly shortens the installation and disassembly time, improves the operation convenience, reduces the labor intensity and working time of the workers during equipment maintenance and cleaning, facilitates the regular cleaning of impurities intercepted on the filter grid, and facilitates the replacement of the filter grid when it is damaged.

[0016] By accelerating the ejection air flow rate, enhancing the impact force, the filter grid is cleaned, the impurities in the pores are removed, the grid is kept unobstructed, the efficient and stable operation of the wastewater treatment work is ensured, and the manual cleaning frequency is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Structure diagram of the first embodiment of the present application Figure 1 ;

[0018] Figure 2 Structure diagram of the upper shell and the lower shell of the first embodiment of the present application

[0019] Figure 3 Sectional view of the upper shell and the lower shell of the first embodiment of the present application

[0020] Figure 4 Structure diagram of the first embodiment of the present application Figure 2 ;

[0021] Figure 5 Enlarged view of part A of one embodiment of the present application Figure 2

[0022] Enlarged view of part B of one embodiment of the present application Figure 6 Figure 3 Explanation of reference numerals in the drawings:

[0023]

[0024] 1, upper shell; 101, lower shell; 102, liquid inlet pipe; 103, liquid outlet pipe; 2, filter grid; 3, plug-in block; 301, plug-in slot; 302, sliding slot; 303, fixed block; 304, spring; 305, pull rope; 306, pull ring; 4, sliding rod; 401, sliding block; 402, gas conveying cavity; 403, air injection hole; 404, gas conveying pipe; 405, booster pump; 5, reciprocating screw rod; 501, motor. DETAILED DESCRIPTION

[0025] The first embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0026] First embodiment:

[0027] Figure 1 , Figure 2 , Figure 3 , Figure 5 ​​As shown, a kind of grid equipment for domestic wastewater treatment, comprising: upper shell 1 and with the detachable connection of lower shell 101 of upper shell 1;Filter grid 2 is connected between upper shell 1 and lower shell 101, wherein the inlet pipe 102 is fixedly connected on the upper shell 1, and the liquid discharge pipe 103 is fixedly connected on the lower shell 101;Plug-in block 3 is fixedly connected on the lower shell 101, wherein the plug-in block 3 is inserted into the plug-in slot 301 corresponding to the plug-in block 3 on the upper shell 1, and the plug-in block 3 is inserted into the plug-in slot 301, and the sliding groove 302 is formed in the plug-in block 3, and the fixed block 303 is slidably connected in the sliding groove 302, the upper end surface of the fixed block 303 is inclined, and the fixed block 303 is clamped on the surface of the upper shell 1;Spring 304 is arranged in the sliding groove 302, one end of the spring 304 is fixedly connected with the fixed block 303, and the other end is fixedly connected with the inner wall of the sliding groove 302.

[0028] When using, domestic wastewater enters the upper shell 1 through the inlet pipe 102, then passes through the filter grid 2, and the impurities are intercepted above the filter grid 2, the treated wastewater flows into the lower shell 101, and finally is discharged from the liquid discharge pipe 103, so that the wastewater is preliminarily filtered to realize solid-liquid separation.

[0029] When installing the equipment, first, the filter grid 2 is clamped between the upper shell 1 and the lower shell 101, then the plug-in block 3 on the lower shell 101 is aligned with the plug-in slot 301 on the upper shell 1, and is slowly inserted, in the process of inserting, the fixed block 303 on the plug-in block 3 is extruded by the surface of the upper shell 1 and slides into the sliding groove 302 against the elastic force of the spring 304, when the plug-in block 3 is completely inserted into the plug-in slot 301, the fixed block 303 is popped out under the elastic force of the spring 304, so as to be clamped on the surface of the upper shell 1, thereby completing the rapid installation of the upper shell 1 and the lower shell 101.

[0030] If the upper shell 1 and the lower shell 101 need to be disassembled to clean the impurities intercepted on the filter grid 2, the fixed block 303 is pressed to slide into the sliding groove 302, so as to compress the spring 304, when the fixed block 303 is completely separated from the surface of the upper shell 1, the upper shell 1 can be removed from the lower shell 101, thereby realizing rapid disassembly.

[0031] In summary, by the structure of rapidly installing and disassembling the upper shell 1 and the lower shell 101, compared with the traditional bolt connection mode, no additional tool is needed, the installation and disassembly time is greatly shortened, the operation convenience is improved, and the labor intensity and working time of workers can be effectively reduced in equipment maintenance and cleaning work.

[0032] The quick detachable structure is convenient for the operator to clean the filter grid 2 regularly, ensures the treatment efficiency of the grid device on domestic wastewater, timely cleaning of the intercepted impurities, prevents the impurities from affecting the passing capacity and filtering effect of the wastewater due to excessive accumulation, and enables the device to continuously maintain a high-efficiency operation state.

[0033] Figure 5 As shown, the fixed block 303 is fixedly connected with a pull rope 305, and one end of the pull rope 305 penetrating through the sliding groove 302 is fixedly connected with a pull ring 306.

[0034] When the upper shell 1 and the lower shell 101 are detached, the pull rope 305 can be pulled by the pull ring 306 to drive the fixed block 303 to slide into the sliding groove 302, compressing the spring 304. When the fixed block 303 completely separates from the surface of the upper shell 1, the upper shell 1 can be removed from the lower shell 101, realizing quick detachment, making the detachment process more convenient and labor-saving, improving the efficiency of maintaining the device, and reducing the labor consumption when cleaning the device.

[0035] Figure 3 As shown, the upper shell 1 and the lower shell 101 are both provided with clamping grooves, and the filter grid 2 is clamped in the clamping grooves.

[0036] When installing the device, the position of the filter grid 2 is limited by the clamping grooves, so that it remains stable during the wastewater treatment process, preventing it from being displaced under the impact of wastewater, ensuring the filtering effect, and facilitating the installation and replacement of the filter grid 2.

[0037] Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 As shown, the inner wall of the lower shell 101 is fixedly connected with symmetrical sliding rods 4, the sliding rods 4 are slidingly connected with sliding blocks 401, the sliding blocks 401 are provided with gas conveying cavities 402, the sliding blocks 401 are provided with gas injection holes 403 in communication with the gas conveying cavities 402, and the sliding blocks 401 are provided with gas conveying pipes 404 in communication with the gas conveying cavities 402.

[0038] The lower shell 101 is fixedly connected with a booster pump 405, and one end of the gas conveying pipe 404 away from the gas conveying cavity 402 is fixedly communicated with the output end of the booster pump 405. The input end of the booster pump 405 is provided with a filter screen.

[0039] The inner wall of the lower shell 101 is rotatably connected with a reciprocating screw rod 5, the sliding block 401 is threadedly connected with the reciprocating screw rod 5, the lower shell 101 is fixedly connected with a motor 501, and the reciprocating screw rod 5 is fixedly connected with the output end of the motor 501.

[0040] The gas outlet end of the gas injection hole 403 is smaller than the gas inlet end.

[0041] The domestic wastewater flows into the upper shell 1 from the liquid inlet pipe 102, and the impurities are intercepted when passing through the filter grid 2, and the filtered wastewater flows into the lower shell 101 and is discharged from the liquid outlet pipe 103. During the wastewater filtering process, the booster pump 405 is started synchronously. The external air first passes through the filter screen arranged at the input end of the booster pump 405, and after filtering out dust, particles and other impurities, enters the booster pump 405 to be pressurized;

[0042] The pressurized air is delivered to the air conveying cavity 402 in the sliding block 401 connected to the sliding rod 4 on the inner wall of the lower shell 101 through the air conveying pipe 404. At the same time, the motor 501 drives the reciprocating screw rod 5 fixedly connected to the output end of the motor 501 to rotate. Since the sliding block 401 is threadedly connected to the reciprocating screw rod 5, the sliding block 401 moves linearly along the sliding rod 4 under the driving of the reciprocating screw rod 5 and the guidance of the sliding rod 4.

[0043] During the reciprocating movement of the sliding block 401, the high-pressure air in the air conveying cavity 402 is sprayed out from the air injection hole 403. Since the outlet end of the air injection hole 403 is smaller than the inlet end, the flow rate of the air is accelerated and the impact force is enhanced when the air is sprayed out, so that the air injection hole 403 performs reverse cleaning on the filter grid 2, thereby blowing out the impurities blocked in the pores of the filter grid 2, keeping the filter grid 2 unobstructed, and ensuring that the wastewater can pass through the filter grid 2 without any obstruction, and the filtering process is successfully completed, and the domestic wastewater treatment work is ensured to operate efficiently and stably. When the wastewater treatment work is completed, the booster pump 405 and the motor 501 stop working.

[0044] It should be noted that the air conveying pipe 404 is a stretchable and retractable hose, so the air conveying pipe 404 will not interfere with the movement of the sliding block 401.

[0045] The above-mentioned embodiments of the present application are not limited to the actual needs, and various changes made by those skilled in the art within the scope of their knowledge without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A grating device for domestic wastewater treatment, characterized in that, The utility model relates to a filter, including: Upper shell (1) and with upper shell (1) detachable connection lower shell (101), Filtering grid (2) are connected between upper shell (1) and lower shell (101), Wherein, the upper shell (1) is fixedly connected with the liquid inlet pipe (102), and the lower shell (101) is fixedly connected with the liquid outlet pipe (103); Plug-in block (3) is fixedly connected on the lower shell (101), Wherein, the upper shell (1) is provided with plug-in slot (301) corresponding to plug-in block (3), plug-in block (3) is inserted into plug-in slot (301), plug-in block (3) is provided with sliding slot (302), sliding slot (302) is slidably connected with fixed block (303), the upper end surface of fixed block (303) is inclined, and fixed block (303) is clamped on the surface of upper shell (1); Spring (304) is arranged in sliding slot (302), one end of spring (304) is fixedly connected with fixed block (303), and the other end is fixedly connected with the inner wall of sliding slot (302).

2. A grid device for domestic wastewater treatment according to claim 1, characterized in that: The fixed block (303) is fixedly connected with the pull rope (305), and one end of the pull rope (305) penetrating the sliding slot (302) is fixedly connected with the pull ring (306).

3. The grid device for domestic wastewater treatment according to claim 1, characterized in that: The upper shell (1) and the lower shell (101) are provided with clamping grooves, and the filtering grid (2) is clamped in the clamping grooves.

4. The grid device for domestic wastewater treatment according to claim 1, characterized in that: The inner wall of the lower shell (101) is symmetrically fixedly connected with the sliding rod (4), the sliding rod (4) is slidably connected with the sliding block (401), the sliding block (401) is provided with the gas conveying cavity (402), the sliding block (401) is provided with the gas injection hole (403) communicated with the gas conveying cavity (402), and the sliding block (401) is provided with the gas conveying pipe (404) communicated with the gas conveying cavity (402).

5. A grid device for domestic wastewater treatment according to claim 4, characterized in that: The lower shell (101) is fixedly connected with the booster pump (405), one end of the gas conveying pipe (404) away from the gas conveying cavity (402) is fixedly communicated with the output end of the booster pump (405), and the input end of the booster pump (405) is provided with a filter screen.

6. A grid device for domestic wastewater treatment according to claim 4, characterized in that: The inner wall of the lower shell (101) is rotatably connected with the reciprocating screw rod (5), the sliding block (401) is threadedly connected with the reciprocating screw rod (5), the lower shell (101) is fixedly connected with the motor (501), and the reciprocating screw rod (5) is fixedly connected with the output end of the motor (501).

7. A grid device for domestic wastewater treatment according to claim 4, characterized in that: The outlet end of the gas injection hole (403) is smaller than the inlet end.

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