Domestic sewage pretreatment equipment integrated with efficient crushing and separating technology

Abstract

The utility model discloses domestic sewage pretreatment equipment integrating an efficient crushing and separating technology, which belongs to the field of domestic sewage treatment, and comprises a shell and a flow guide box, a separation disc is arranged in the shell and divides the shell into an upper part and a lower part, and the top wall of the separation disc is rotatably connected with a cutter head driven by a driving mechanism to rotate. When the first through groove is communicated with the second through groove, the upper portion of the shell is communicated with the lower portion of the shell, a sewage inlet is formed in the upper portion of the shell, the lower portion of the shell is connected with a flow guide box through a communicating pipe, and a flow guide assembly is arranged in the flow guide box. And a first outflow pipe through which crushed residues flow out and a second outflow pipe through which sewage flows out are arranged on the flow guide box. According to the pretreatment process based on the efficient crushing and separating technology, the energy consumption and the medicine consumption of the subsequent sewage treatment link are effectively reduced, and the negative influence on the environment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of domestic sewage treatment, and in particular to a domestic sewage pretreatment device integrating efficient crushing and separation technology. BACKGROUND

[0002] Domestic sewage generated in daily life, as an inevitable byproduct, usually contains organic waste, chemical pollutants and various microorganisms. These components pose a significant threat to the ecological environment and human health. Such wastewater mainly comes from residential areas, public facilities and industrial toilets, etc. Due to the instability and perishability of these organic substances, they will produce foul odor in wastewater and provide a suitable environment for the reproduction of bacteria and pathogens, thereby increasing the risk of the spread of infectious diseases. Therefore, sewage must be treated to meet the discharge standards. Before wastewater treatment, necessary pretreatment steps must be performed.

[0003] At present, the wastewater pretreatment devices on the market have many defects, especially the non-detachable nature of the filter screen, which brings great inconvenience to the maintenance and replacement of the device. The wastewater treatment device with the patent number CN209662753U ingeniously integrates a rotating threaded rod. By rotating the threaded rod, the sliding plate can be driven to move. The movement of the sliding plate further promotes the synchronous movement of the block and the clamping rod, thereby achieving the unlocking of the filter plate clamping slot. This mechanism allows the filter plate to be conveniently removed from the treatment box for necessary maintenance and replacement operations.

[0004] However, in practical application, the wastewater treatment device also has some shortcomings. Specifically, when the filter plate is used to intercept organic waste (such as plastic bags, fruit peels, etc.), the filter plate surface will accumulate a large amount of organic matter, causing clogging, which significantly reduces the filtration and discharge efficiency of wastewater. To solve this problem, the filter plate must be removed regularly for cleaning, which inevitably affects the overall efficiency of wastewater treatment. In order to improve the efficiency of sewage treatment and reduce the difficulty of maintenance, it is extremely necessary to improve these devices to ensure the continuity and effectiveness of wastewater treatment. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above problems, the present application provides a domestic sewage pretreatment device integrating efficient crushing and separation technology.

[0006] The domestic sewage pretreatment device integrating efficient crushing and separation technology provided by the present application adopts the following technical solution:

[0007] The utility model provides a kind of integrated high-efficiency crushing and separating technology domestic sewage pretreatment equipment, including shell and flow guide box, the shell is provided with partition disc, the partition disc is divided into upper portion and lower portion, the top wall of the partition disc is rotatably connected with the cutterhead driven by driven mechanism, the cutterhead is provided with first through slot, the partition disc is provided with second through slot, when the first through slot and the second through slot are communicated, the upper portion of the shell and the lower portion of the shell are communicated, the upper portion of the shell is provided with inlet, the lower portion of the shell is connected by communicating pipe and the flow guide box, the flow guide box is provided with flow guide assembly, the flow guide box is provided with first outflow pipe for crushing residue to flow out and second outflow pipe for sewage to flow out.

[0008] Further, the crushing assembly includes upper grinding blades provided on the top surface of the cutterhead, the upper grinding blades are provided in two groups, one group of the upper grinding blades is distributed clockwise along the circumference of the cutterhead, and the other group of the upper grinding blades is distributed counterclockwise along the circumference of the cutterhead.

[0009] Further, the crushing assembly further includes lower grinding blades provided on the bottom of the partition disc, the circumferential direction of the lower grinding blades is sawtooth-shaped.

[0010] Further, the inner wall of the upper portion of the shell is provided with a grinding ring, the inner circumferential wall of the grinding ring is uniformly provided with a plurality of bidirectional blades, and a gap is left between the grinding ring and the cutterhead.

[0011] Further, the inner wall of the upper portion of the shell is provided with a fixing ring and a plurality of protrusions, the protrusions and the fixing ring form an accommodation space for accommodating the grinding ring, the grinding ring is provided with a plurality of grooves for accommodating the protrusions, and the inner top wall of the fixing ring is provided with an inclined surface.

[0012] Further, the driving mechanism is an electric motor installed at the bottom of the shell, the output shaft of the electric motor extends upward into the shell, and the cutterhead is installed on the output shaft of the electric motor.

[0013] Further, the bottom of the flow guide box is provided with a slope, the first outflow pipe is arranged at the bottom of the slope, and the second outflow pipe is arranged on the opposite side wall of the communicating pipe.

[0014] Further, the flow guide assembly includes a plurality of first flow guide plates and second flow guide plates, the extension directions of the first flow guide plates and the second flow guide plates are perpendicular to the extension direction of the communicating pipe, the first flow guide plates and the second flow guide plates are arranged alternately, and the flow guide box, the first flow guide plates and the second flow guide plates form a passage for the flow of crushing residue and sewage.

[0015] To sum up, the present application includes at least one of the following beneficial technical effects:

[0016] Through the synergistic effect of the upper grinding blade, the lower grinding blade and the grinding ring, efficient crushing of solid residues in sewage is achieved, thereby improving the subsequent sewage treatment efficiency.

[0017] Through the structural design of the partition disc, the first through groove and the second through groove, the sewage and the crushed residues are simultaneously introduced into the flow guide box, and the separation of the residues and the sewage is effectively promoted, thereby maximizing the prevention of the blockage of the subsequent treatment equipment; the pretreatment process based on the efficient crushing and separation technology effectively reduces the energy consumption and chemical consumption of the subsequent sewage treatment link, and reduces the negative impact on the environment.

[0018] The device integrates crushing, separation and flow guiding functions, has a compact structure, occupies a small space, and is easy to install and maintain; the cutter head is driven to rotate by a motor, which is easy to operate, stable in running state and high in reliability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Figure 1 is a schematic diagram of the overall structure of a domestic sewage pretreatment device integrating efficient crushing and separation technology in an embodiment of the present application.

[0020] Figure 2 Figure 2 is a sectional view along the A-A plane in Figure 1. Figure 1

[0021] Figure 3 is a schematic diagram of the overall structure for embodying the flow guide box in an embodiment of the present application. Figure 3

[0022] Figure 4 is a sectional view along the B-B plane in Figure 3. Figure 4 Figure 3 Figure 5 is a sectional view along the C-C plane in Figure 3.

[0023] Reference signs: 1, flow guide box; 2, shell; 3, flange; 4, crushing assembly; 41, upper grinding blade; 42, lower grinding blade; 5, flow guiding assembly; 51, first flow guiding plate; 52, second flow guiding plate; 6, slope surface; 7, conical cover; 8, driving mechanism; 81, motor; 9, partition disc; 10, cutter head; 11, first through groove; 12, second through groove; 13, sewage inlet; 14, communication pipe; 15, first outflow pipe; 16, second outflow pipe; 17, grinding ring; 18, bidirectional blade; 19, protrusion; 20, groove; 21, containing space; 22, inclined surface; 23, fixing ring. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0025] ​The embodiment of the present application discloses a domestic sewage pretreatment equipment integrating efficient crushing and separation technology.

[0026] Referring to Figure 1 and Figure 2 The domestic sewage pretreatment equipment integrating efficient crushing and separation technology comprises a shell 2 and a flow guide box 1, the shell 2 is provided as an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected through a flange 3, a partition disc 9 is arranged in the shell 2, the partition disc 9 divides the shell 2 into an upper part and a lower part, a cutter head 10 driven to rotate by a driving mechanism 8 is rotatably connected to the partition disc 9, a crushing assembly 4 is arranged in the shell 2, a first through slot 11 is arranged on the cutter head 10, a second through slot 12 is arranged on the partition disc 9, when the first through slot 11 and the second through slot 12 are communicated, the upper part of the shell 2 and the lower part of the shell 2 are communicated, the upper part of the shell 2 is provided with a sewage inlet 13, the lower part of the shell 2 is connected with the flow guide box 1 through a communication pipe 14, a flow guide assembly 5 is arranged in the flow guide box 1, a first outflow pipe 15 for outflow of crushing residues and a second outflow pipe 16 for outflow of sewage are arranged on the flow guide box 1.

[0027] When the domestic sewage is treated, the domestic sewage enters the shell 2 through the sewage inlet 13 first, the residues in the domestic sewage are crushed by the cutter head 10 and the crushing assembly 4 in the shell 2, and then flow into the lower part of the shell 2 through the first through slot 11 and the second through slot 12, and then flow into the flow guide box 1 through the communication pipe 14, the residues and the sewage in the domestic sewage are separated by the flow guide assembly 5 in the flow guide box 1, the residues flow out through the first outflow pipe 15, and the sewage flows out through the second outflow pipe 16, which realizes that the sewage and the crushing residues are introduced into the flow guide box at the same time, effectively promotes the separation of the residues and the sewage, and maximally avoids the blockage of the subsequent treatment equipment; the pretreatment process based on the efficient crushing and separation technology effectively reduces the energy consumption and the chemical consumption of the subsequent sewage treatment link, and reduces the negative influence on the environment.

[0028] Referring to Figure 2 The crushing assembly 4 comprises upper grinding blades 41 arranged on the top surface of the cutter head 10, the upper grinding blades 41 are provided in two groups, one group of the upper grinding blades 41 is distributed clockwise along the circumference of the cutter head 10, and the other group of the upper grinding blades 41 is distributed counterclockwise along the circumference of the cutter head 10; the crushing assembly 4 further comprises lower grinding blades 42 arranged at the bottom of the partition disc 9, and the circumferences of the lower grinding blades 42 are sawtooth-shaped.

[0029] The upper grinding blade 41 is used to strongly crush the sewage on the upper part of the shell 2, the lower grinding blade 42 is used to strongly crush the sewage on the lower part of the shell 2, and the two groups of upper grinding blades 41 distributed in opposite directions are beneficial to reducing the winding of residues in domestic sewage during the forward and reverse rotation of the cutter head 10, achieving efficient crushing of solid residues in sewage, and further improving the subsequent sewage treatment efficiency.

[0030] With reference to Figure 2 , the upper inner wall of the shell 2 is provided with a grinding ring 17, the inner peripheral wall of the grinding ring 17 is uniformly provided with a plurality of bidirectional blades 18, a gap is left between the grinding ring 17 and the cutter head 10, the upper inner wall of the shell 2 is provided with a fixed ring 23 and a plurality of protrusions 19, the plurality of protrusions 19 and the fixed ring 23 form an accommodation space 21 for accommodating the grinding ring 17, a plurality of grooves 20 for accommodating the protrusions 19 are formed on the grinding ring 17, and the inner top wall of the fixed ring 23 is provided with a slope 22.

[0031] When installing the grinding ring 17, first, the protrusions 19 are clamped into the grooves 20, and then the grinding ring 17 is pushed towards the inner wall of the shell 2, and the grinding ring 17 and the slope 22 on the fixed ring 23 are extruded, which facilitates clamping the grinding ring 17 between the grooves 20 and the fixed ring 23; the high-speed residues on the inner wall of the shell 2 after the cutter head 10 is crushed by the grinding ring 17 are subjected to secondary crushing, achieving efficient crushing of solid residues in sewage, and further improving the subsequent sewage treatment efficiency.

[0032] With reference to Figure 3 and Figure 4 , the bottom of the flow guide box 1 is provided with a slope 6, the first outflow pipe 15 is arranged at the bottom of the slope 6, and the second outflow pipe 16 is arranged on the side wall opposite to the communication pipe 14; the flow guide assembly 5 includes a plurality of first flow guide plates 51 and second flow guide plates 52, the extension directions of the first flow guide plates 51 and the second flow guide plates 52 are perpendicular to the extension direction of the communication pipe 14, the first flow guide plates 51 and the second flow guide plates 52 are arranged alternately, the flow guide box 1, the plurality of first flow guide plates 51 and the plurality of second flow guide plates 52 enclose a passage for the flow of crushed residue sewage, and the first outflow pipe 15 is provided with a conical cover 7 close to one end of the flow guide box 1, the conical cover 7 is in communication with the inside of the flow guide box 1, and the residues in the flow guide box 1 are conveniently gathered and discharged by the first outflow pipe 15.

[0033] When the sewage containing the broken residues enters the flow guide box 1 through the communication pipe 14, the sewage passes through the first flow guide plate 51, the second flow guide plate 52 and the passage formed by the flow guide box 1, and during the movement of the sewage through the passage, the flow rate of the sewage is slowed down, and the residues are deposited on the bottom wall of the flow guide box 1 under the action of gravity, and are discharged through the first outlet pipe 15 under the action of gravity and the sewage flow, and the sewage is discharged through the second outlet pipe 16, realizing the synchronous introduction of the sewage and the broken residues into the flow guide box, effectively promoting the separation of the residues and the sewage, and thereby maximizing the prevention of the blockage of the subsequent treatment equipment; the pretreatment process based on the high-efficiency breaking and separation technology effectively reduces the energy consumption and drug consumption of the subsequent sewage treatment link, and reduces the negative impact on the environment.

[0034] The implementation principle of the household sewage pretreatment equipment integrating the high-efficiency breaking and separation technology is as follows: when the household sewage is treated, the household sewage enters the shell 2 through the sewage inlet 13, the residues in the household sewage are broken by the cutter head 10 and the breaking assembly 4 in the shell 2, and then flow into the lower part of the shell 2 through the first through groove 11 and the second through groove 12, and then flow into the flow guide box 1 through the communication pipe 14, the residues and the sewage are separated by the flow guide assembly 5 in the flow guide box 1, the residues are discharged through the first outlet pipe 15, and the sewage is discharged through the second outlet pipe 16, realizing the synchronous introduction of the sewage and the broken residues into the flow guide box, effectively promoting the separation of the residues and the sewage, and thereby maximizing the prevention of the blockage of the subsequent treatment equipment; the pretreatment process based on the high-efficiency breaking and separation technology effectively reduces the energy consumption and drug consumption of the subsequent sewage treatment link, and reduces the negative impact on the environment.

[0035] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made on the basis of the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A domestic sewage pretreatment device integrating high-efficiency crushing and separation technology, characterized in that: The utility model provides a sewage treatment device, which comprises a shell (2) and a flow guide box (1), a partition disc (9) is arranged in the shell (2), the shell (2) is divided into an upper portion and a lower portion by the partition disc (9), a cutter head (10) driven to rotate by a driving mechanism (8) is rotatably connected to the top wall of the partition disc (9), a first through groove (11) is arranged on the cutter head (10), a second through groove (12) is arranged on the partition disc (9), when the first through groove (11) and the second through groove (12) are communicated, the upper portion of the shell (2) and the lower portion of the shell (2) are communicated, the upper portion of the shell (2) is provided with a sewage inlet (13), the lower portion of the shell (2) is connected to the flow guide box (1) through a communication pipe (14), a flow guide assembly (5) is arranged in the flow guide box (1), a first outflow pipe (15) for discharging broken residues and a second outflow pipe (16) for discharging sewage are arranged on the flow guide box (1). ​ 2. The domestic sewage pretreatment device integrated with the high-efficiency crushing and separation technology according to claim 1, characterized in that: A crushing assembly (4) is arranged in the shell (2), the crushing assembly (4) comprises upper grinding blades (41) arranged on the top surface of the cutter head (10), the upper grinding blades (41) are provided in two groups, one group of the upper grinding blades (41) is distributed clockwise along the circumference of the cutter head (10), and the other group of the upper grinding blades (41) is distributed counterclockwise along the circumference of the cutter head (10).

3. The domestic sewage pretreatment device integrated with the high-efficiency crushing and separation technology according to claim 2, characterized in that: The crushing assembly (4) further comprises lower grinding blades (42) arranged on the bottom of the partition disc (9), the circumferences of the lower grinding blades (42) are sawtooth-shaped.

4. The domestic sewage pretreatment device integrated with the high-efficiency crushing and separation technology according to claim 1, characterized in that: A grinding ring (17) is arranged on the inner wall of the upper portion of the shell (2), the inner circumferential wall of the grinding ring (17) is uniformly provided with a plurality of bidirectional blades (18), and a gap is left between the grinding ring (17) and the cutter head (10).

5. The integrated high-efficiency crushing and separating technology domestic sewage pretreatment equipment according to claim 4, characterized in that: A fixing ring (23) and a plurality of protrusions (19) are arranged on the inner wall of the upper portion of the shell (2), the protrusions (19) and the fixing ring (23) surround a containing space (21) for containing the grinding ring (17), a plurality of grooves (20) for containing the protrusions (19) are formed in the grinding ring (17), and an inclined surface (22) is arranged on the inner top wall of the fixing ring (23).

6. The integrated high-efficiency crushing and separating technology domestic sewage pretreatment equipment according to claim 1, characterized in that: The driving mechanism (8) is an electric machine (81) arranged at the bottom of the shell (2), the output shaft of the electric machine (81) extends upward into the shell (2), and the cutter head (10) is arranged on the output shaft of the electric machine (81).

7. The integrated high-efficiency crushing and separating technology domestic sewage pretreatment equipment according to claim 1, characterized in that: A slope (6) is arranged at the bottom of the flow guide box (1), the first outflow pipe (15) is arranged at the bottom of the slope (6), and the second outflow pipe (16) is arranged on the opposite side wall of the communication pipe (14).

8. The integrated high-efficiency crushing and separating technology domestic sewage pretreatment equipment according to claim 2, characterized in that: The flow guide assembly (5) comprises a plurality of first flow guide plates (51) and second flow guide plates (52), the extending directions of the first flow guide plates (51) and the second flow guide plates (52) are perpendicular to the extending direction of the communicating pipe (14), the first flow guide plates (51) and the second flow guide plates (52) are arranged alternately, and the flow guide box (1), the plurality of first flow guide plates (51) and the plurality of second flow guide plates (52) enclose a passage for the flow of the broken residue sewage.

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