Medical wastewater pretreatment equipment

Abstract

The utility model relates to medical wastewater pretreatment equipment which comprises three filtering bins which are used for filtering step by step and increasing the filtering precision step by step, the opening end of the lower-stage filtering bin is communicated with the filtering port of the upper-stage filtering bin, and the waste discharge port of the lower-stage filtering bin is communicated with the opening end of the upper-stage filtering bin. And waste generated by step-by-step filtration is concentrated and then is filtered by the upper-stage filtration port, so that the technical problem of low filtration effect of the traditional multi-stage filtration process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater pretreatment equipment technical field more specifically is related to a kind of medical wastewater pretreatment equipment. BACKGROUND

[0002] In prior art, medical wastewater needs to be pretreated before chemical treatment, so that solid impurities contained in wastewater are degraded;

[0003] Pretreatment process needs to add flocculant in medical wastewater;

[0004] However, in the pretreatment process, the flocculant produces particles of different sizes and mutual adhesion, single-layer filtration of its single pore size reduces the efficiency of precision filtration, and the efficiency is improved while the filtration quality is reduced, so that the filtration quality and filtration efficiency cannot be achieved.

[0005] When multi-layer filtration, the waste particles removed by each layer of filtration are discharged into wastewater and re-enter the next filtration process, so that the filtration efficiency is low.

[0006] Therefore, how to provide a new medical wastewater pretreatment equipment to improve filtration efficiency while not affecting filtration quality is a problem that needs to be solved by those skilled in the art. INVENTION CONTENTS

[0007] Therefore, the utility model provides a kind of medical wastewater pretreatment equipment, to solve the above technical problem.

[0008] A kind of medical wastewater pretreatment equipment, comprising:

[0009] First filter bin, the top end opening of the first filter bin, the bottom end of the first filter bin has first waste discharge port, the side wall of the first filter bin has first filter port;

[0010] Second filter bin, the inlet end of the second filter bin is communicated with the first filter port, the top end opening of the second filter bin, the bottom end of the second filter bin has second waste discharge port, the second waste discharge port is communicated with the top end opening of the first filter bin, the side wall of the second filter bin has second filter port;

[0011] Third filter bin, the inlet end of the third filter bin is communicated with the second filter port, the top end opening of the third filter bin, the bottom end of the third filter bin has third waste discharge port and is communicated with the top end opening of the second filter bin, the third filter bin has third filter port on it.

[0012] By the above technical scheme, the medical wastewater pretreatment equipment has the characteristics of high filtering efficiency and large filtering waste particles.

[0013] Preferably, the first filtering bin comprises a first flow collecting pipe and a first filter screen, the bottom end of the first flow collecting pipe is provided with the first waste discharge port, the top end of the first flow collecting pipe is open to inject wastewater, the sidewall of the first flow collecting pipe is provided with a first filtering installation slot, the first filtering installation slot extends upwardly through the top edge of the first flow collecting pipe, and the first filter screen is inserted into the first filtering installation slot to form the first filtering opening.

[0014] By the above technical scheme, the plug-in type filter screen installation structure is convenient to replace in the later period.

[0015] Preferably, the second filtering bin comprises a second flow collecting pipe and a second filter screen, the bottom end of the second flow collecting pipe is provided with the second waste discharge port, the top end of the second flow collecting pipe is open to be the inlet end of the second filtering bin, the sidewall of the second flow collecting pipe is provided with a second filtering installation slot, the second filtering installation slot extends upwardly through the top edge of the second flow collecting pipe, and the second filter screen is inserted into the second filtering installation slot to form the second filtering opening.

[0016] Preferably, the second flow collecting pipe is arranged on the outside of the first flow collecting pipe in a surrounding manner and is coaxially arranged with the first flow collecting pipe.

[0017] Preferably, the third filtering bin comprises a third flow collecting pipe and a third filter screen, the bottom end of the third flow collecting pipe is provided with the third waste discharge port, the top end of the third flow collecting pipe is open to be the inlet end of the third filtering bin, the sidewall of the third flow collecting pipe is provided with a third filtering installation slot, the third filtering installation slot extends upwardly through the top edge of the third flow collecting pipe, and the third filter screen is inserted into the third filtering installation slot to form the third filtering opening.

[0018] Preferably, the third flow collecting pipe is arranged on the outside of the second flow collecting pipe in a surrounding manner and is coaxially arranged with the second flow collecting pipe.

[0019] Preferably, the filtering screen opening of the first filter screen is larger than the filtering screen opening of the second filter screen, and the filtering screen opening of the second filter screen is larger than the filtering screen opening of the third filter screen.

[0020] Through the technical scheme, the multi-stage filter bin is arranged in a surrounding manner, the inlet end of a lower stage is directly communicated with the filter port of an upper stage, the overall structure has higher integration, and the structure is more compact.

[0021] Preferably, the support ring is further provided, the bottom end of the support ring is fixedly connected with the outer sidewall of the third collecting pipe, the support ring and the third filter screen have a liquid containing area, and the sidewall surface of the support ring is provided with a pretreatment outlet.

[0022] Preferably, the top cover is further provided, the top cover is disc-shaped, the outer periphery of the top cover is fixedly connected with the top end of the support ring, the center of the top cover is provided with a wastewater inlet, the second waste outlet is communicated with the wastewater inlet through a pipeline, the top cover is arranged with a circulation port between the first filter screen and the second filter screen, the third waste outlet is communicated with the circulation port through a pipeline, and the top cover is provided with filter screen mounting holes corresponding to the first filter screen, the second filter screen and the third filter screen.

[0023] Preferably, the inner diameter of the wastewater inlet is greater than the inner diameter of the first waste outlet.

[0024] Through the above technical scheme, compared with the prior art, the utility model discloses a kind of medical wastewater pretreatment devices, with the following beneficial effects:

[0025] 1. The top end of the filter bin is opened, and the waste outlet is arranged at the bottom end. The filter screen is arranged on the sidewall of the filter bin. The condensate generated in the medical wastewater pretreatment is accumulated on the surface of the filter screen. In the water flow circulation, the condensate accumulated on the filter screen is automatically removed through the waste outlet.

[0026] 2. After the wastewater is preliminarily filtered through the first filter port, it enters the second filter bin. Part of the water flows into the third filter bin through the second filter screen, and the other part of the water returns to the first filter bin through the second waste outlet at the bottom end of the second filter bin. At the same time, the condensate accumulated on the second filter screen is returned to the first filter bin with the water flow, and is intercepted by the first filter port and finally discharged from the first waste outlet with the water flow.

[0027] The wastewater entering the third filter bin through the second filter screen is further filtered through the third filter screen. Part of the water is filtered through the pretreatment outlet, and the other part of the water flows back to the second filter bin through the third waste outlet at the bottom end of the third filter bin. At the same time, the condensate accumulated on the third filter screen is returned to the second filter bin with the water flow, and is intercepted by the second filter screen and finally discharged from the second waste outlet with the water flow.

[0028] In this cycle, the condensate of the wastewater entering the wastewater pretreatment device is discharged through the first waste discharge outlet after reaching the first filtering port filtering standard, avoiding the fine particles filtered in the later stage of multi-layer filtration returning to the wastewater pool and being repeatedly filtered through the first stage filtering. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A perspective view of the medical wastewater pretreatment device provided by the present application is provided.

[0030] Figure 2 A partial sectional view of the medical wastewater pretreatment device provided by the present application is provided.

[0031] Figure 3 A perspective view of the medical wastewater pretreatment device (after removing the top cover) provided by the present application is provided.

[0032] Figure 4 A perspective view of the medical wastewater pretreatment device (after removing the top cover) provided by the present application is provided. Figure 3 A partial enlarged view of position A in FIG. 1.

[0033] Wherein: 1 - first filtering bin; 2 - second filtering bin; 3 - third filtering bin; 4 - support ring; 5 - top cover; 11 - first flow collection pipeline; 12 - first filter screen; 21 - second flow collection pipeline; 22 - second filter screen; 31 - third flow collection pipeline; 32 - third filter screen; 41 - pretreatment outlet; 42 - liquid containing area; 51 - wastewater inlet; 52 - circulation port; 111 - first waste discharge outlet; 112 - first filtering installation slot; 211 - second waste discharge outlet; 212 - second filtering installation slot; 311 - third waste discharge outlet; 312 - third filtering installation slot. DETAILED DESCRIPTION

[0034] The principles and features of the present application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the present application and not to limit the scope of the present application.

[0035] Referring to FIG. 1, Figures 1-4 The medical wastewater pretreatment device provided by the present application comprises a first filtering bin 1, a second filtering bin 2, and a third filtering bin 3.

[0036] The first filtering bin 1 has an open top end, and the side wall of the first filtering bin 1 has a first filtering port.

[0037] The inlet end of the second filtering bin 2 is in communication with the first filtering port, the top end of the second filtering bin 2 is open, the bottom end of the second filtering bin 2 has a second waste discharge outlet 211, the second waste discharge outlet 211 is in communication with the open top end of the first filtering bin 1, and the side wall of the second filtering bin 2 has a second filtering port.

[0038] The third filter bin 3 is communicated with the second filter bin 2 at the inlet end, and is opened at the top end, and has a third waste discharge port 311 at the bottom end and communicated with the top end of the second filter bin 2, and has a third filter port on the third filter bin 3.

[0039] Specifically, the first filter bin 1 is opened at the bottom end to discharge waste water.

[0040] To further optimize the above technical solution, the first filter bin 1 comprises a first flow collecting pipe 11 and a first filter screen 12, the top end of the first flow collecting pipe 11 is opened to inject waste water, the sidewall of the first flow collecting pipe 11 is provided with a first filter mounting groove 112 extending upwardly through the top edge of the first flow collecting pipe 11, and the first filter screen 12 is inserted into the first filter mounting groove 112 to form the first filter port.

[0041] Specifically, the first flow collecting pipe 11 is opened at the bottom end to discharge waste water.

[0042] More specifically, the sidewall of the first flow collecting pipe 11 is provided with two first filter mounting grooves 112 symmetrically distributed about the axial cross section of the first flow collecting pipe 11, the groove surface of the first filter mounting groove 112 is provided with a clamping groove 30, the first filter screen 12 is in the shape of a circular arc, the first filter screen 12 is inserted into the clamping groove 30 of the groove surface of the first filter mounting groove 112 along the axial direction of the first flow collecting pipe 11, and the clamping groove 30 of the groove surface of the first filter mounting groove 112 is in clearance fit with the mounting surface of the first filter screen 12 in the thickness direction.

[0043] To further optimize the above technical solution, the second filter bin 2 comprises a second flow collecting pipe 21 and a second filter screen 22, the bottom end of the second flow collecting pipe 21 is provided with a second waste discharge port 211, the top end of the second flow collecting pipe 21 is opened to serve as the inlet end of the second filter bin 2, the sidewall of the second flow collecting pipe 21 is provided with a second filter mounting groove 212 extending upwardly through the top edge of the second flow collecting pipe 21, and the second filter screen 22 is inserted into the second filter mounting groove 212 to form the second filter port.

[0044] More specifically, the sidewall of the second flow collecting pipe 21 is provided with two second filter mounting grooves 212 symmetrically distributed about the axial cross section of the second flow collecting pipe 21, the groove surface of the second filter mounting groove 212 is provided with a clamping groove 30 along the opening direction of the second filter mounting groove 212, the second filter screen 22 is in the shape of a circular arc, the second filter screen 22 is inserted into the clamping groove 30 of the groove surface of the second filter mounting groove 212 along the axial direction of the second flow collecting pipe 21, and the clamping groove 30 of the groove surface of the second filter mounting groove 212 is in clearance fit with the mounting surface of the second filter screen 22 in the thickness direction.

[0045] In order to further optimize the above technical solutions, the second collecting pipe 21 is arranged around the outside of the first collecting pipe 11 and coaxially with the first collecting pipe 11.

[0046] More specifically, the second filter mounting groove 212 is arranged corresponding to the first filter mounting groove 112, and the first filter screen 12 and the second filter screen 22 are coaxially arranged and the two ends of the length direction are aligned.

[0047] In order to further optimize the above technical solutions, the third filter bin 3 includes a third collecting pipe 31 and a third filter screen 32, the bottom end of the third collecting pipe 31 has a third waste discharge port 311, the top end of the third collecting pipe 31 is open to the third filter bin 3 entrance end, the sidewall of the third collecting pipe 31 is provided with a third filter mounting groove 312, the third filter mounting groove 312 extends upwardly through the top edge of the third collecting pipe 31, and the third filter screen 32 is inserted into the third filter mounting groove 312 to form a third filter port.

[0048] More specifically, the sidewall of the third collecting pipe 31 is provided with two third filter mounting grooves 312, the two third filter mounting grooves 312 are symmetrically distributed about the axial section of the third collecting pipe 31, the third filter mounting groove 312 is provided with a clamping groove 30 along the opening direction of the groove surface, the third filter screen 32 is arc-shaped, the third filter screen 32 is inserted into the clamping groove 30 of the groove surface of the third filter mounting groove 312 along the axial direction of the third collecting pipe 31, and the clamping groove 30 of the groove surface of the third filter mounting groove 312 is clearance-fitted with the mounting surface of the third filter screen 32 in the thickness direction.

[0049] In order to further optimize the above technical solutions, the third collecting pipe 31 is arranged around the outside of the second collecting pipe 21 and coaxially with the second collecting pipe 21.

[0050] More specifically, the third filter mounting groove 312 is arranged corresponding to the second filter mounting groove 212, and the third filter screen 32 and the second filter screen 22 are coaxially arranged and the two ends of the length direction are aligned.

[0051] In order to further optimize the above technical solutions, the filter screen port of the first filter screen 12 is larger than the filter screen port of the second filter screen 22, and the filter screen port of the second filter screen 22 is larger than the filter screen port of the third filter screen 32.

[0052] In order to further optimize the above technical solutions, a support ring 4 is further included, the bottom end of the support ring 4 is tightly connected with the outer sidewall of the third collecting pipe 31, the support ring 4 has a liquid containing area 42 between the support ring 4 and the third filter screen 32, and the sidewall surface of the support ring 4 is provided with a pretreatment outlet 41.

[0053] To further optimize the above technical solutions, the top cover 5 is further included, the top cover 5 is disc-shaped, the outer periphery of the top cover 5 is tightly connected with the top end of the support ring 4, the center of the top cover 5 is arranged with a wastewater inlet 51, the second waste outlet 211 is communicated with the wastewater inlet 51 through a pipeline one, the top cover 5 is arranged with a circulation port 52 between the first filter screen 12 and the second filter screen 22, the third waste outlet 311 is communicated with the circulation port 52 through a pipeline two, and the top cover 5 is provided with a filter screen mounting hole 53 corresponding to the first filter screen 12, the second filter screen 22 and the third filter screen 32.

[0054] More specifically, the pipeline one and the pipeline two are symmetrically distributed on the axial section of the above-mentioned collecting pipeline and are provided with the filter mounting groove, and the distance between the two filter screens on both sides of the pipeline is greater than the maximum width of the pipeline, so that the pipeline is avoided from interfering with the replacement or cleaning of the filter screen.

[0055] To further optimize the above technical solutions, the top cover 5 is further included, the top cover 5 is disc-shaped, the outer periphery of the top cover 5 is tightly connected with the top end of the support ring 4, the center of the top cover 5 is arranged with a wastewater inlet 51, the second waste outlet 211 is communicated with the wastewater inlet 51 through a pipeline one, the top cover 5 is arranged with a circulation port 52 between the first filter screen 12 and the second filter screen 22, the third waste outlet 311 is communicated with the circulation port 52 through a pipeline two, and the top cover 5 is provided with a filter screen mounting hole 53 corresponding to the first filter screen 12, the second filter screen 22 and the third filter screen 32.

[0056] The specific principle of the medical wastewater pretreatment equipment provided by the embodiment is as follows:

[0057] 1. The medical wastewater is pumped out from the wastewater pool through the circulating pump and enters the first filter bin 1 through the wastewater inlet 51;

[0058] 2. The wastewater entering the first filter bin 1 is partially introduced into the second filter bin 2 through the first filter screen 12, and the other part is discharged to the wastewater pool through the first waste outlet 111 and carries away a part of the condensate accumulated on the first filter screen 12 in the process of discharge;

[0059] 3. The wastewater entering the second filter bin 2 is partially introduced into the third filter bin 3 through the second filter screen 22, and the other part is discharged to the wastewater inlet 51 through the second waste outlet 211, and carries away a part of the condensate accumulated on the second filter screen 22 and deposited at the bottom end of the second filter bin 2 in the process of discharge;

[0060] 4. The wastewater entering the third filter bin 3 is partially introduced into the liquid containing area 42 through the third filter screen 32, and the other part is discharged to the circulation port 52 through the third waste outlet 311, and carries away a part of the condensate accumulated on the third filter screen 32 and deposited at the bottom end of the third filter bin 3 in the process of discharge;

[0061] 5. The medical pretreatment wastewater preliminarily filtered in the liquid containing area 42 is discharged to the subsequent filtering process through the pretreatment outlet 41.

[0062] The above merely is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A medical wastewater pretreatment apparatus, characterized by, The utility model relates to a waste water treatment device, comprising: a first filter bin (1) having an open top end for receiving waste water, a sidewall having a first filter opening; a second filter bin (2) having an open top end and being in communication with the first filter opening, a bottom end having a second waste discharge opening (211) in communication with the open top end of the first filter bin (1), a sidewall having a second filter opening having a smaller filter size than the first filter opening; a third filter bin (3) having an open top end and being in communication with the second filter opening, a bottom end having a third waste discharge opening (311) in communication with the open top end of the second filter bin (2), a sidewall having a third filter opening in communication with a pretreatment outlet (41), the third filter opening having a smaller filter size than the second filter opening.

2. The medical wastewater pretreatment apparatus according to claim 1, wherein The first filter bin (1) comprises a first collecting pipe (11) having an open top end for receiving waste water, a sidewall having a first filter mounting groove (112) extending upwardly through a top edge of the first collecting pipe (11), and a first filter screen (12) inserted into the first filter mounting groove (112) to form the first filter opening.

3. The medical wastewater pretreatment apparatus according to claim 2, wherein The second filter bin (2) comprises a second collecting pipe (21) having a bottom end with the second waste discharge opening (211), an open top end as an inlet end of the second filter bin (2), a sidewall having a second filter mounting groove (212) extending upwardly through a top edge of the second collecting pipe (21), and a second filter screen (22) inserted into the second filter mounting groove (212) to form the second filter opening.

4. The medical wastewater pretreatment apparatus according to claim 3, wherein The second collecting pipe (21) is arranged coaxially outside the first collecting pipe (11).

5. The medical wastewater pretreatment apparatus according to claim 4, wherein The third filter bin (3) comprises a third collecting pipe (31) having a bottom end with the third waste discharge opening (311), an open top end as an inlet end of the third filter bin (3), a sidewall having a third filter mounting groove (312) extending upwardly through a top edge of the third collecting pipe (31), and a third filter screen (32) inserted into the third filter mounting groove (312) to form the third filter opening.

6. The medical wastewater pretreatment apparatus according to claim 5, wherein The third collecting pipe (31) is arranged coaxially outside the second collecting pipe (21).

7. The medical wastewater pretreatment apparatus according to claim 6, wherein The filter screen opening of the first filter screen (12) is larger than that of the second filter screen (22), and the filter screen opening of the second filter screen (22) is larger than that of the third filter screen (32).

8. The medical wastewater pretreatment apparatus according to claim 7, wherein Further comprising a support ring (4) coaxially arranged with the third collecting pipe (31), the bottom end of the support ring (4) is tightly connected with the outer side wall of the third collecting pipe (31), and the support ring (4) has a liquid containing area (42) with the third filter screen (32), and the side wall surface of the support ring (4) has a pretreatment outlet (41).

9. The medical waste wastewater pretreatment apparatus of claim 8, wherein, Further comprising a top cover (5) in the shape of a disc, the outer periphery of the top cover (5) is tightly connected with the top end of the support ring (4), the center of the top cover (5) has a wastewater inlet (51), the second waste outlet (211) is communicated with the wastewater inlet (51) through a pipeline, the top cover (5) is arranged between the first filter screen (12) and the second filter screen (22) and has a circulating opening (52), the third waste outlet (311) is communicated with the circulating opening (52) through a pipeline, and the top cover (5) is provided with filter screen mounting holes corresponding to the first filter screen (12), the second filter screen (22) and the third filter screen (32).

10. The medical wastewater pretreatment apparatus according to claim 9, wherein Further comprising a circulating pump, the input end of the circulating pump is communicated with the wastewater through a pipeline, and the output end of the circulating pump is communicated with the wastewater inlet (51) through a pipeline.

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