CN212119278U - Waste liquid cyclic utilization device - Google Patents

Abstract

A waste liquid recycling device comprises a first conveying part, a second conveying part, a turnover tank and an underground tank, wherein the top of the underground tank is positioned below the ground, an inlet of the underground tank is connected with a flow guide pipeline, and the flow guide pipeline extends to the above ground and is connected with a cylinder bottom valve through a joint; the underground tank outlet of the underground tank is connected with the turnover tank through the first conveying part, the waste solvent in the turnover tank can be conveyed through the second conveying part, and the first conveying part and the second conveying part provide driving force for liquid flowing. The utility model discloses a problem that waste gas inorganization that waste liquid collection in-process workman intensity of labour is big, the waste liquid produces was discharged can be solved to the scheme, improves production efficiency.

Description

Waste liquid cyclic utilization device

Technical Field

The utility model relates to a waste liquid cyclic utilization device especially relates to a coating trade waste liquid cyclic utilization device.

Background

The waste liquid generated in the coating industry comprises industrial production raw materials, intermediate products, byproducts and the like, and the waste liquid often contains toxic and harmful substances. The coating waste liquid has various types, and different treatment methods need to be selected according to different water qualities, liquid quantities and discharge requirements after treatment.

In the chemical industry, a pulling cylinder is often used for storing materials and transporting the materials to a required station for stirring and mixing or chemical reaction production, and the pulling cylinder needs to be cleaned before being stored or another material needs to be placed. The cleaning solution is typically a volatile organic solvent. Contaminants typically include suspended solids, colloidal matter, oil slicks, heavy oils, and dissolved matter, among others. The cleaning of the scuffing cylinder has a plurality of procedures, and firstly, the scuffing cylinder needs to be soaked or brushed by using a solvent to remove pollutants attached to the scuffing cylinder. However, a single cleaning process is difficult to completely remove the contaminants from the crucible, and the cleaning process needs to be performed again by using a solvent. In the secondary washing, the waste liquid contains less solid matter, jelly and dissolved matter, and if the secondary washing waste liquid is discarded, the cost is increased. There are generally two treatment methods for the waste liquid in the second step: firstly, the waste liquid of the procedure is directly used for cleaning the pulling cylinder, and floating objects in the waste liquid can be attached to the pulling cylinder needing to be cleaned for the first time, so that the pulling cylinder is polluted; secondly, carry out unified waste water treatment after collecting and recycle, but the collection of present waste liquid still adopts artificial mode, need wait the waste liquid and collect certain quantity and just handle the waste liquid is unified, increased the time of waste liquid and air contact, lead to the waste gas emission of waste liquid production to the air in.

Therefore, there is a need for a waste liquid recycling device to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

For solving the traditional problem of wasing liquid waste treatment device, the problem of the unorganized emission of waste gas that workman intensity of labour is big, the waste liquid produces, the utility model provides a waste liquid cyclic utilization device to improve production efficiency. The purpose of the utility model is realized by adopting the following technical scheme.

A waste liquid recycling device comprises a first conveying part, a second conveying part, a turnover tank and an underground tank, wherein the top of the underground tank is positioned below the ground, an inlet of the underground tank is connected with a flow guide pipeline, and the flow guide pipeline extends to the above ground and is connected with a cylinder bottom valve through a joint; the underground tank outlet of the underground tank is connected with the turnover tank through the first conveying part, the waste solvent in the turnover tank can be conveyed through the second conveying part, and the first conveying part and the second conveying part provide driving force for liquid flowing.

And furthermore, a pipeline extending into the underground tank through the outlet of the underground tank, wherein the port of the pipeline is 20cm-50cm away from the bottom wall of the underground tank.

Further, the first conveying part comprises a pump body and a filter arranged at the inlet end of the pump body, and waste liquid flows into the pump body through the filter.

Further, the first conveying part further comprises a one-way valve arranged at an outlet of the pump body, and the one-way valve prevents the waste liquid output by the pump body from flowing back to the pump body.

Further, the underground tank comprises an underground tank low liquid level sensor, and when the liquid level of the underground tank is lower than the sensing position of the underground tank low liquid level sensor, the pump body of the first conveying part stops working.

Further, the turnover tank comprises a turnover tank high liquid level sensor, and when the liquid level of the turnover tank reaches the turnover tank high liquid level sensor sensing position, the pump body of the first conveying part stops working.

Further, the second conveying part is the same as the first conveying part in structure, the transfer tank comprises a transfer tank low liquid level sensor, and when the liquid level of the transfer tank is lower than the sensing position of the transfer tank low liquid level sensor, the pump body of the second conveying part stops working.

Further, the underground tank comprises an underground tank high liquid level sensor, and when the liquid level of the underground tank reaches the position sensed by the underground tank high liquid level sensor, the alarm gives an alarm.

Further, a spray washing device, a washing solvent tank and a third conveying part are also included; the outlet of the third conveying part is connected with one ends of the first branch and the second branch, the other end of the first branch is connected with the spray-washing device, and the other end of the second branch is connected with the outlet of the second conveying part.

Furthermore, the first branch and the second branch are respectively connected with a first valve and a second valve.

The utility model provides a waste liquid cyclic utilization device is equipped with underground tank, and underground tank's jar body top is located the below ground, underground tank's underground tank access connection has the water conservancy diversion pipeline, the water conservancy diversion pipeline extends to above ground to be connected through connecting and drawing jar bottom valve, formed draw the level of jar bottom to be higher than the structure at underground tank's jar body top, thereby utilize gravity to make the automatic inflow of waste liquid in drawing the jar underground tank. The gravity is utilized to collect the waste liquid, which is equivalent to a pump body in a normally open state, and once the waste liquid is available, the waste liquid is immediately collected, so that the unorganized emission of waste gas caused by the waste liquid is avoided. And when the waste liquid in the waste liquid gets into the in-process of underground jar, solid-state pollutant in the waste liquid sinks to underground jar bottom because of the action of gravity, and first conveying part is taken out the waste liquid in the underground jar again to the turnover jar time, and solid-state pollutant in the waste liquid obviously reduces. In a similar way, the circulation tank can be used for precipitating and filtering again, and the two-stage precipitation and filtration enables the second conveying part to output relatively clean waste liquid.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

FIG. 1 is a schematic view of the whole waste liquid recycling device of the present invention;

FIG. 2 is a detailed schematic view of the underground tank of FIG. 1;

FIG. 3 is a detailed schematic view of the transfer pot of FIG. 1;

FIG. 4 is a detailed schematic view of the first conveying section of FIG. 1;

FIG. 5 is a schematic view of a further improved embodiment of the waste liquid recycling device of the present invention;

fig. 6 is a detailed schematic view of the cleaning solvent tank of fig. 5.

1. An underground tank; 11. an underground tank inlet; 12. an underground tank outlet; 13. a high liquid level sensor of the underground tank; 14. a low level sensor of the underground tank; 2. a first conveying section; 21. a pump body; 22. a filter; 23. a one-way valve; 24. a delivery section inlet valve; 25. a delivery section outlet valve; 26. a flexible hose; 3. a transfer tank; 31. a transfer tank inlet; 32. a transfer tank outlet; 33. a transfer tank low liquid level sensor; 34. a high liquid level sensor of the turnover tank; 35. a transfer tank bottom valve; 4. a second conveying section; 5. cylinder pulling; 51. pulling a cylinder bottom valve; 6. a spray washing device; 7. cleaning the solvent tank; 71. cleaning the inlet of the solvent tank; 72. cleaning an outlet of the solvent tank; 73. cleaning a low liquid level sensor of the solvent tank; 74. cleaning a high liquid level sensor of the solvent tank; 75. cleaning a bottom valve of the solvent tank; 8. a third conveying section; 91. a first valve; 92. a second valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

Referring to the attached drawing 1, the waste liquid recycling device comprises a first conveying part 2, a second conveying part 4, a turnover tank 3 and an underground tank 1, wherein the top of the underground tank 1 is located below the ground, an underground tank inlet 11 of the underground tank 1 is connected with a flow guide pipeline, the flow guide pipeline extends to the ground and is connected with a bottom valve 51 of a pull cylinder through a joint, a structure that the horizontal plane of the bottom of the pull cylinder 5 is higher than the top of the underground tank is formed, and therefore waste liquid in the pull cylinder 5 automatically flows into the underground tank 1 through gravity. Those skilled in the art will appreciate that the pump body can also be used to provide power to the waste liquid from the pulling cylinder 5 to the waste liquid collecting tank. However, the cleaning of the scuffing plate 5 is sporadic, that is, waste liquid collection is required only during the cleaning of the scuffing plate 5. If adopt the pump body, then need remind the workman to open the pump body at washing 5 in-process cylinder that draw, or increase and detect the structure and open the pump body when the waste liquid reaches the certain degree. The addition of the pump body not only results in increased cost, but also results in inconvenient operation.

It is worth noting that the waste liquid is firstly collected into the underground tank 1 by gravity, the speed of the waste liquid entering the underground tank 1 is slower than that of the pump body, the disturbance to the waste liquid in the underground tank 1 is not large, the waste liquid can stand in the underground tank, and therefore the solid floating objects gradually sink to the bottom of the underground tank. A waste liquid with a cloudy bottom and a clear upper part is formed. Thus, the pipe extending into the underground tank via the underground tank outlet 12 must have its port at a distance from the underground tank bottom wall to avoid sucking out sediment from the underground tank, and the pipe port is at a distance of 20cm to 50cm, preferably 30cm, from the underground tank bottom wall. The underground tank outlet 12 of the underground tank is connected with the transfer tank 3 through the first conveying part 2, and after the waste liquid of the underground tank is subjected to appropriate standing time, the second conveying part 4 is started, so that the clear waste solvent can be conveyed to the transfer tank 3 through the first conveying part 2. Meanwhile, the waste solvent in the transfer tank 3 can be transported to the outside for use through the second transport unit 4.

Referring to fig. 2, a detailed structure of an underground tank is shown. The underground tank is provided with an underground tank inlet 11, an underground tank outlet 12, an underground tank high liquid level sensor 13 and an underground tank low liquid level sensor 14. The underground tank inlet 11 is connected to a scuffing bottom valve 51 through a flexible pipe 16. The underground tank outlet 12 is connected to the first conveying part 2. The underground tank 1 is buried at the ground bottom and is dug and cleaned once every half year or 1 year, so that the underground tank has a larger volume.

Referring to fig. 3, a detailed structure of the transfer tank 3 is shown. The transfer tank 3 is provided with a transfer tank inlet 31, a transfer tank outlet 32, a transfer tank low liquid level sensor 33, a transfer tank high liquid level sensor 34 and a transfer tank bottom valve 35. The transfer tank inlet 31 is connected to the first transfer unit 2, and the transfer tank outlet 32 is connected to the second transfer unit 4. The second conveying part 4 opens the liquid conveying when needed, so that the waste liquid enters the turnover tank 3 and then stands still, thereby further precipitating impurities in the waste liquid. The volume of the turnover tank 3 is smaller than that of the underground tank 1, and the turnover tank 3 is positioned above the ground and is suitable for being cleaned conveniently by arranging a turnover tank bottom valve 35.

Referring to fig. 4, a detailed structure of the first conveying section 2 is shown. The first transport unit 2 includes a pump body 21, a strainer 22, a check valve 23, a transport unit inlet valve 24, and a transport unit outlet valve 25. Said pump body 21 is preferably an air operated diaphragm pump. It is understood that the second conveyance section 4 is provided with the same structure as the first conveyance section 2. Because the utility model discloses mainly adopt the precipitation method to handle the waste liquid, when the pump body 21 absorbed the waste liquid, can bring into partial solid-state impurity because of the disturbance unavoidably, for further filtering, set up filter 22 before the pump body 21 to make the waste liquid just can carry to next process or jar body by the pump body 21 after filtering. The filter 22 is mainly used for filtering impurities of dust grade, and a filter of 10 mu to 50 mu can be used, and the filter 22 is preferably a Y-type filter. In order to avoid unnecessary waste of energy caused by backflow of gas or waste liquid in the subsequent tank body of the conveying part, the first conveying part 2 further comprises a one-way valve 23 arranged at the outlet of the pump body 21, and the one-way valve 23 prevents the waste liquid output by the pump body 21 from flowing back to the pump body 21. In order to facilitate the installation of the first conveying part 2 in the system and to provide better maintenance performance, a conveying part inlet valve 24 is provided at the inlet of the first conveying part 2, a conveying part outlet valve 25 is provided at the outlet of the first conveying part 2, and the first conveying part 2 is connected to an external pipeline through the conveying part outlet valve 25 and the conveying part inlet valve 24. In order to isolate the vibration of the pump body 21 from being transmitted to the outside of the first conveying part 2, the inlet and the outlet of the pump body 21 are connected to the filter 22 and the check valve 23 by using the flexible hose 26. The flexible hose 26 may be selected to be a stainless steel hose or other corrosion resistant hose.

With reference to fig. 2-4, following problems may arise after the activation of the pump body 21: 1. the liquid level of the waste liquid of the underground tank is lower than the pipe mouth of the pipe extending from the outlet 12 of the underground tank, so that the pump body 21 can not absorb the waste liquid and idles, thereby generating cavitation and other problems; 2. the transfer tank 3 is filled with an excessive amount of waste liquid, and the transfer tank 3 is expanded. Therefore, when the liquid level of the underground tank is lower than the sensing position of the underground tank low liquid level sensor 14, the underground tank low liquid level sensor 14 sends a signal, and the pump body 21 stops working; when the liquid level of the turnover tank 3 reaches the sensing position of the turnover tank high liquid level sensor 34, the turnover tank high liquid level sensor 34 sends a signal, and the pump body 21 of the first conveying part 2 stops working. In the same way, in order to avoid the liquid level in the transfer tank 3 from being too low, the pump body of the second conveying part 4 idles, when the liquid level of the transfer tank is lower than the sensing position of the transfer tank low liquid level sensor 33, the transfer tank low liquid level sensor 33 sends a signal, and the pump body of the second conveying part 4 stops working. Since the waste liquid in the pulling cylinder 5 automatically flows into the underground tank by gravity, and a controllable pump body is not arranged between the underground tank and the pulling cylinder 5, the liquid level height in the underground tank cannot be limited by cutting off the supply of the pump body, an alarm (not shown) should be further included, and when the liquid level of the underground tank reaches the sensing position of the underground tank high liquid level sensor 13, the alarm gives an alarm. In particular, underground tanks undergo an accumulation process and a working process. During the accumulation process, the liquid level of the underground tank is always lower than the sensing position of the underground tank low liquid level sensor 14, and at the moment, the underground tank low liquid level sensor 14 is always not triggered, so that the pump body 21 of the first conveying part 2 cannot be started. In the working process, the liquid level of the underground tank is positioned between the underground tank low liquid level sensor 14 and the underground tank high liquid level sensor 13, the liquid level is sensed by the underground tank low liquid level sensor 14, and an operator can start the pump body 21. Meanwhile, when the pump body 21 draws excessive waste liquid to cause the liquid level in the underground tank to be lower than the sensing position of the underground tank low liquid level sensor 14, the underground tank low liquid level sensor 14 sends a signal to stop the work of the pump body 21, and the pump body 21 is allowed to be started again until the liquid level reaches the underground tank low liquid level sensor 14 again. When the liquid level of the underground tank is continuously lifted to the sensing position of the underground tank high liquid level sensor 13, the alarm gives an alarm to remind an operator to stop conveying the waste liquid to the underground tank. Similarly, the transfer tank also includes an accumulation process and a working process, except that when the liquid level of the transfer tank rises to the sensing position of the transfer tank high liquid level sensor 34, a signal is sent to stop the pump body 21 of the first conveying part 2. The pump body 21 can be started again only when the pump body of the second conveying part 4 works to lower the liquid level of the turnover tank below the sensing position of the turnover tank high liquid level sensor 34. It is noted that the liquid level sensors in the cleaning solvent tank 7, the underground tank 1 and the turnover tank 3 are preferably liquid level tuning forks.

Referring to fig. 5, a further modified embodiment is shown, which not only has all the structures of the above embodiment, but also includes a spray washing device 6, a washing solvent tank 7, and a third conveying section 8. It is understood that the third conveyance section 8 has the same structure as the first conveyance section 2 and the second conveyance section 4. Referring to fig. 6, a detailed schematic of the cleaning solvent tank 7 is shown. The cleaning solvent tank 7 comprises a cleaning solvent tank inlet 71, a cleaning solvent tank outlet 72, a cleaning solvent tank low liquid level sensor 73, a cleaning solvent tank high liquid level sensor 74 and a cleaning solvent tank bottom valve 75. The cleaning solvent tank inlet 71 is used for introducing clean cleaning solvent and storing the cleaning solvent in the cleaning solvent tank, and the cleaning solvent tank outlet 72 is connected to the third conveying part 8. The outlet of the third conveying part 8 is connected with one ends of the first branch and the second branch, and the other end of the first branch is connected with the spray washing device 6. The cleaning solvent tank 7 provides cleaning solvent for the spray cleaning device 6, and is used for flushing the pull cylinder 5, and waste liquid after flushing enters the underground tank 1 from a pull cylinder bottom valve 51 at the bottom of the pull cylinder 5 for precipitation. The other end of the second branch is connected with the outlet of the second conveying part 4, and the cleaning solvent is output outwards. In the first stage of cleaning, it is not necessary to use a cleaning solvent having high cleanliness, and in general, it is only necessary to use the precipitated waste liquid discharged from the second transport unit 4 for cleaning, but when the precipitated waste liquid cannot be used for cleaning or the precipitated waste liquid is not available, the cleaning liquid can be supplied by using the cleaning solvent tank 7. Since the first branch and the second branch both provide the liquid flow power by the third conveying part 8, and the second branch and the first branch are two completely independent processes, the switching valve is required to control the independent on-off of the two branches. The first branch and the second branch are respectively connected with a first valve 91 and a second valve 92.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are provided for clarity of description only, and are not intended to limit the scope of the invention. Other variations or modifications to the above described embodiments will be apparent to those skilled in the art and are within the scope of the invention.

Claims (11)

1. The utility model provides a waste liquid cyclic utilization device, includes first conveying part, second conveying part, turnover tank, its characterized in that: the top of the underground tank body is positioned below the ground, an inlet of the underground tank is connected with a flow guide pipeline, and the flow guide pipeline extends to the above ground and is connected with the cylinder bottom valve through a joint; the underground tank outlet of the underground tank is connected with the turnover tank through the first conveying part, the waste solvent in the turnover tank can be conveyed through the second conveying part, and the first conveying part and the second conveying part provide driving force for liquid flowing.

2. The waste liquid recycling device according to claim 1, wherein: and the pipeline extends into the underground tank through the outlet of the underground tank, and the distance between the end of the pipeline and the bottom wall of the underground tank is 20cm to 50 cm.

3. The waste liquid recycling device according to claim 1, wherein: the first conveying part comprises a pump body and a filter arranged at the inlet end of the pump body, and waste liquid flows into the pump body through the filter.

4. The waste liquid recycling device according to claim 3, wherein: the first conveying part further comprises a one-way valve arranged at an outlet of the pump body, and the one-way valve prevents the waste liquid output by the pump body from flowing back to the pump body.

5. The waste liquid recycling device according to claim 3, wherein: the underground tank comprises an underground tank low liquid level sensor, and when the liquid level of the underground tank is lower than the sensing position of the underground tank low liquid level sensor, the pump body of the first conveying part stops working.

6. The waste liquid recycling device according to claim 3, wherein: the turnover tank comprises a turnover tank high liquid level sensor, and when the liquid level of the turnover tank reaches the turnover tank high liquid level sensor sensing position, the pump body of the first conveying part stops working.

7. The waste liquid recycling apparatus according to any one of claims 3 to 4, wherein: the transfer tank comprises a transfer tank low liquid level sensor, and when the liquid level of the transfer tank is lower than the sensing position of the transfer tank low liquid level sensor, the pump body of the second conveying part stops working.

8. The waste liquid recycling device according to claim 3, wherein: the underground tank comprises an underground tank high liquid level sensor, and when the liquid level of the underground tank reaches the position sensed by the underground tank high liquid level sensor, the alarm gives an alarm.

9. The waste liquid recycling apparatus according to any one of claims 1 to 6, wherein: a spray washing device, a washing solvent tank and a third conveying part are also included; the outlet of the third conveying part is connected with one ends of the first branch and the second branch, the other end of the first branch is connected with the spray-washing device, and the other end of the second branch is connected with the outlet of the second conveying part.

10. The waste liquid recycling device according to claim 9, wherein: and the first branch and the second branch are respectively connected with a first valve and a second valve.

11. The waste liquid recycling device according to claim 9, wherein: the first conveying part, the second conveying part and the third conveying part have the same structure.

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