Production wastewater settling and recycling device

Abstract

The utility model discloses a device for settling and recycling production wastewater, which relates to the technical field of production wastewater recycling and comprises a settling tank, a filtrate collecting tank, a stirring mechanism, a sludge pump, a filter, a drain pipe, a filtrate pipe and a sewage return pipe. The filtrate collecting tank is communicated with an overflow port in the upper part of the side wall of the sedimentation tank through an overflow pipe; the stirring mechanism is mounted in the sedimentation tank; the water inlet end of the sludge pump is communicated with the inner cavity of the sedimentation tank; the water inlet end of the drainage pipe communicates with the water outlet end of the filter; the water inlet ends of the filtration liquid pipe and the sewage return pipe are both communicated with the drainage end of the drainage pipe, the water outlet end of the filtration liquid pipe is communicated with the filtration liquid collecting tank, and the water outlet end of the sewage return pipe is communicated with the return opening in the top of the sedimentation tank, so that sewage generated by flushing the ground in a workshop can be purified, cyclic utilization is facilitated, waste of excessive water resources is avoided, and cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to production wastewater recycling technical field, more specifically relates to a production wastewater settlement recycling device. BACKGROUND

[0002] The preparation method of Fischer-Tropsch synthesis catalyst includes precipitation method and impregnation method, the precipitation method mainly is that the solution containing copper nitrate and iron nitrate is reacted with sodium carbonate solution, and the coprecipitate is obtained, the coprecipitate is filtered and washed subsequently, and the filter cake is formed, the filter cake is mixed with a certain amount of deionized water and is beaten, then the potassium silicate water glass solution is added, and the pH value of the slurry is adjusted, the filter cake after the above treatment is further dried, then is calcined, and finally is formed.

[0003] The preparation process of Fischer-Tropsch synthesis catalyst involves precipitation filter cake and impregnation filter cake, when the cake is unloaded, a part of non-recyclable floor material will pollute the ground, and it is inconvenient to clean up, at present, the cleaning process is basically that the contaminated ground is washed by production water, and then the ground is cleaned by the operator and is discharged into the sewer pipe, this process needs a large amount of production water to wash the ground and produces too much production wastewater, which causes resource waste and increases production cost. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a production wastewater settlement recycling device to at least solve the problems of more water resource waste and increased production cost in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A production wastewater settlement recycling device, which comprises a settling tank, a filtrate collecting tank, a stirring mechanism, a sludge pump, a filter, a drain pipe, a filtrate pipe and a sewage backflow pipe, the water outlet end of the workshop sewer pipe is communicated with the inner cavity of the settling tank, the filtrate collecting tank is communicated with the overflow port on the upper part of the side wall of the settling tank through an overflow pipe, the stirring mechanism is installed in the settling tank, the water inlet end of the sludge pump is communicated with the inner cavity of the settling tank, the water inlet end of the filter is communicated with the water outlet end of the sludge pump, the water inlet end of the drain pipe is communicated with the water outlet end of the filter, the water inlet ends of the filtrate pipe and the sewage backflow pipe are both communicated with the water outlet end of the drain pipe, the water outlet end of the filtrate pipe is communicated with the filtrate collecting tank, and the water outlet end of the sewage backflow pipe is communicated with the backflow port on the top of the settling tank.

[0007] The beneficial effects realized by the utility model are as follows: the wastewater after flushing is discharged into the sedimentation tank through the workshop sewer pipe, and after a period of sedimentation, the upper layer of filtered liquid is discharged into the filtered liquid collecting tank through the overflow port for reuse; the lower layer of sewage is pumped into the filter through the sludge pump under the stirring of the stirring mechanism, and the filtered clean water is discharged into the filtered liquid collecting tank through the filtered liquid pipe; if the filtered water is still turbid, it means that the filter element of the filter needs to be cleaned or replaced, at which time the unfiltered sewage flowing out of the filter is discharged into the sedimentation tank through the sewage backflow pipe, and the filter element is cleaned or replaced and then filtered again, and the clean water is discharged into the filtered liquid collecting tank through the filtered liquid pipe.

[0008] Preferably, a transparent sight glass is installed on the drain pipe.

[0009] Preferably, a first filter screen is installed at the water inlet end of the workshop sewer pipe.

[0010] Preferably, a second filter screen is installed at the overflow port, and the pore size of the second filter screen is smaller than that of the first filter screen.

[0011] Preferably, a water pump is further provided, the water inlet end of the water pump is communicated with the filtered liquid collecting tank, and the water outlet end of the water pump is communicated with the workshop water pipe.

[0012] Preferably, the sedimentation tank comprises a tank body with an open top and a top cover arranged at the open top, the stirring mechanism is installed at the center of the top cover, and the stirring end of the stirring mechanism extends into the inner cavity of the tank body through the top cover.

[0013] Preferably, the stirring mechanism comprises a motor, a rotating shaft and stirring blades, the motor is fixed at the center of the top of the top cover, the upper end of the rotating shaft is connected with the motor, the lower end of the rotating shaft extends into the inner cavity of the tank body through the top cover, and a plurality of the stirring blades are uniformly and spacedly arranged around the lower end of the rotating shaft and fixed thereon.

[0014] Preferably, the top surface of the top cover is downwardly inclined from the edge to the center, a support table is fixed at the center of the top of the top cover, and the motor is fixed on the support table; a ring-shaped flow guide groove is formed in the outer circumferential side of the support table, and a plurality of water inlet holes are uniformly and spacedly formed in the groove bottom of the ring-shaped flow guide groove.

[0015] Preferably, a ring-shaped filter screen is installed in the ring-shaped flow guide groove.

[0016] Compared with the prior art, the production wastewater sedimentation and recycling device provided by the utility model can purify the sewage on the workshop floor for recycling, thereby avoiding waste of too much water resource and saving cost; when the sedimentation tank is placed outdoors, it can collect and filter the falling rainwater, thereby reducing cost expenditure. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described in the following are only part of the embodiments of the present application, and all other drawings obtained by those skilled in the art without creative labor based on the provided drawings also belong to the protection scope of the present application.

[0018] Figure 1 The application provides a production wastewater sedimentation recycling device structure schematic diagram.

[0019] Figure 2 The application provides a sedimentation tank profile structure schematic diagram.

[0020] Figure 3 Figure 2 The application provides a sedimentation tank profile structure schematic diagram.

[0021] Figure 4 The application provides a sedimentation tank profile structure schematic diagram.

[0022] In the figure: 1, sedimentation tank, 101, tank body, 102, top cover, 1021, annular flow guide groove, 1022, water inlet hole, 103, support table, 2, filter clear liquid collection tank, 3, stirring mechanism, 4, sludge pump, 5, filter, 6, drain pipe, 7, filter clear liquid pipe, 8, sewage backflow pipe, 9, workshop sewer pipe, 10, overflow pipe, 11, second filter screen, 12, water pump, 13, annular filter screen, 14, workshop water pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0024] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0025] ​In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, the above terms can be understood according to the specific meaning in the utility model.

[0026] Please refer to Figure 1 ,- Figure 4 The utility model discloses a production wastewater settlement recycling device, include: settling tank 1, filter collection groove 2, stirring mechanism 3, sludge pump 4, filter 5, drain pipe 6, filter liquid pipe 7 and sewage backflow pipe 8, workshop sewer 9's water outlet end communicates the inner chamber of settling tank 1, filter collection groove 2 is communicated with the overflow port of the upper portion of the side wall of settling tank 1 through overflow pipe 10;Stirring mechanism 3 is installed in settling tank 1;The water inlet end of sludge pump 4 communicates the lower inner chamber of settling tank 1, and the water inlet end of filter 5 communicates the water outlet end of sludge pump 4;The water inlet end of drain pipe 6 is connected through the water outlet end of filter 5;The water inlet end of filter liquid pipe 7 and sewage backflow pipe 8 all communicate the water outlet end of drain pipe 6, and the water outlet end of filter liquid pipe 7 communicates filter collection groove 2 and workshop water pipe 14, and the water outlet end of sewage backflow pipe 8 communicates the backflow port of the top of settling tank 1.

[0027] The wastewater after washing is discharged to the settling tank 1 through the sewer, and after a period of sedimentation, the upper layer of filter liquid is discharged to the filter collection groove 2 through the overflow port for standby use;The lower layer of sewage is stirred and mixed uniformly by the stirring mechanism 3, to prevent impurities from accumulating at the bottom of the tank for a long time and being difficult to clean, and is pumped to the filter 5 by the sludge pump 4 for filtration, to further extract clean water;The filter 5 can be a used filter 5 that is updated and eliminated, to reduce the cost expenditure;The filtered clean water is discharged to the filter collection groove 2 through the filter liquid pipe 7, and if the filtered water is still turbid, it indicates that the filter element of the filter 5 needs to be cleaned or replaced, at this time, the unfiltered sewage flowing out of the filter 5 is discharged to the settling tank again through the sewage backflow pipe 8, and after cleaning or replacing the filter element, the filtration is performed again, and the clean water is discharged to the filter collection groove 2 through the filter liquid pipe 7.

[0028] In a specific example, a transparent sight glass is installed on the drain pipe 6, to facilitate observation of the filtration condition of the water in the drain pipe 6, if the water is still turbid, a hand valve on the sewage backflow pipe 8 is opened, to discharge the water to the settling tank again, and after cleaning or replacing the filter element of the filter 5, the filtration is performed again, and when the water is filtered clean, the water is discharged to the filter collection groove 2 through the filter liquid pipe 7.

[0029] In a specific example, the first filter screen is installed at the water inlet end of the workshop water outlet pipe 9 to prevent large sundries in the workshop from entering the sedimentation tank and affecting the operation of the sludge pump.

[0030] In a specific example, the overflow port is provided with a second filter screen 11, and the aperture of the second filter screen 11 is smaller than that of the first filter screen, which further intercepts fine sundries floating in the water to prevent them from entering the filtered liquid collection tank.

[0031] In a specific example, a water pump 12 is further provided, and the water inlet end of the water pump 12 is communicated with the filtered liquid collection tank 2, and the water outlet end is communicated with the workshop water pipe 14.

[0032] In a specific example, referring to Figure 2 , the sedimentation tank 1 comprises a tank body 101 with an open top and a top cover 102 arranged on the open top, the stirring mechanism 3 is arranged at the center of the top cover 102, and the stirring end thereof extends into the inner cavity of the tank body 101 through the top cover 102. The top cover 102 is arranged to increase the safety of the sedimentation tank 1, reduce the falling of sundries from the outside into the sedimentation tank, and increase the filtering burden.

[0033] In a specific example, the stirring mechanism 3 comprises a motor 301, a rotating shaft 302, and stirring blades 303. The motor 301 is fixed at the center of the top of the top cover 102, and a motor cover is arranged on the outer side thereof. The upper end of the rotating shaft 302 is connected to the motor 301, and the lower end thereof extends into the inner cavity of the tank body 101 through the top cover 102. A plurality of stirring blades 303 are uniformly and spacedly arranged in the circumferential direction and are fixed to the lower end of the rotating shaft 302. The filtered liquid after sedimentation is discharged into the filtered liquid collection tank 2, and the lower layer turbid liquid is uniformly mixed under stirring and is pumped into the filter 5 by the sludge pump 4 for filtration.

[0034] Referring to Figures 2-4 , in a specific example, the top surface of the top cover 102 is inclined downward from the edge thereof toward the center, and a support table 103 is fixed at the top center thereof, and the motor 301 is fixed on the support table 103. The top cover 102 is provided with a ring-shaped flow guide groove 1021 corresponding to the outer peripheral side of the support table 103, and a plurality of water inlet holes 1022 are uniformly and spacedly arranged in the circumferential direction at the groove bottom of the ring-shaped flow guide groove 1021. When the sedimentation tank is arranged outdoors, the inclined surface design of the top of the top cover 102 can collect more rainwater and make it flow into the sedimentation tank, thereby further saving water resources.

[0035] In a specific example, a ring-shaped filter screen 13 is installed in the ring-shaped flow guide groove 1021 to prevent sundries from the outside from entering the inside of the sedimentation tank through the water inlet holes 1022.

[0036] The various embodiments described in this specification are presented by way of example, and each embodiment is presented for the purpose of conveying the novelty and inventive aspects of the present patent application. For the embodiments disclosed, because they correspond to the methods disclosed in the embodiments, they are described more simply, and the relevant parts are referred to the method part description.

[0037] The above description of disclosed embodiments enables one of ordinary skill in the art to make and use the patent application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the patent application. Thus, the present patent application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A production wastewater sedimentation recycling device, characterized by, It includes: The sedimentation tank (1), the filtrate collecting tank (2), the stirring mechanism (3), the sludge pump (4), the filter (5), the drain pipe (6), the filtrate pipe (7) and the sewage backflow pipe (8), the water outlet end of the workshop sewer pipe (9) is communicated with the inner chamber of the sedimentation tank (1), the filtrate collecting tank (2) is communicated with the overflow port of the upper portion of the side wall of the sedimentation tank (1) through the overflow pipe (10); The stirring mechanism (3) is installed in the sedimentation tank (1); The water inlet end of the sludge pump (4) is communicated with the lower inner chamber of the sedimentation tank (1), the water inlet end of the filter (5) is communicated with the water outlet end of the sludge pump (4); The water inlet end of the drain pipe (6) is communicated with the water outlet end of the filter (5); The water inlet end of the filtrate pipe (7) and the sewage backflow pipe (8) are all communicated with the water outlet end of the drain pipe (6), the water outlet end of the filtrate pipe (7) is communicated with the filtrate collecting tank (2) and the workshop water pipe (14), and the water outlet end of the sewage backflow pipe (8) is communicated with the backflow port of the top of the sedimentation tank (1).

2. The apparatus according to claim 1, wherein The transparent sight glass is installed on the drain pipe (6).

3. The apparatus according to claim 1, wherein The first filter screen is installed on the water inlet end of the workshop sewer pipe (9).

4. The apparatus for recycling of settled wastewater of claim 3, wherein The second filter screen (11) is installed on the overflow port, and the aperture of the second filter screen (11) is smaller than that of the first filter screen.

5. The apparatus for recycling of wastewater from production sedimentation according to claim 1, characterized in that, The water pump (12) is further provided, the water inlet end of the water pump (12) is communicated with the filtrate collecting tank (2), and the water outlet end is communicated with the workshop water pipe (14).

6. A device for recycling of settled production wastewater according to any of claims 1-5, characterized in that, The sedimentation tank (1) includes the pool body (101) with the top opening and the top cover (102) arranged on the top opening, the stirring mechanism (3) is installed at the center of the top cover (102), and the stirring end thereof extends into the inner chamber of the pool body (101) through the top cover (102).

7. A device for recycling of settled wastewater from production according to claim 6, characterized in that, The stirring mechanism (3) includes the motor (301), the rotating shaft (302) and the stirring blade (303), the motor (301) is fixed at the center of the top of the top cover (102), the upper end of the rotating shaft (302) is connected with the motor (301), the lower end extends into the inner chamber of the pool body (101) through the top cover (102), and a plurality of the stirring blades (303) are uniformly and spacedly arranged in the circumferential direction and fixed to the lower end of the rotating shaft (302).

8. The apparatus according to claim 7, wherein The top surface of the top cover (102) is inclined downward from the edge to the center, a support table (103) is fixed to the top center of the top cover (102), and the motor (301) is fixed to the support table (103); The annular flow guide groove (1021) is formed in the outer circumferential side of the support table (103), and a plurality of water inlet holes (1022) are uniformly and spacedly formed in the groove bottom of the annular flow guide groove (1021).

9. The apparatus of claim 8, wherein, The annular filter screen (13) is installed in the annular flow guide groove (1021).

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