Children toy paint spraying workshop wastewater treatment and circulation device

Abstract

The utility model discloses a wastewater treatment and circulation device for a child toy paint spraying workshop, belongs to the technical field of toy processing, and solves the problem that the wastewater treatment and circulation device is required to be matched with a wastewater precipitation process to carry out differentiated transportation treatment on water and precipitates. Comprising a tank body, the tank body is communicated with a wastewater inlet, the top surface of the tank body is communicated with a water outlet pipe, the bottom of the tank body is communicated with a slurry outlet pipe, the water outlet pipe and the slurry outlet pipe are respectively communicated with a centrifugal pump I and a centrifugal pump II, and the slurry outlet pipe is also communicated with an electromagnetic valve. Waste water is fed into the tank body through the waste water inlet, after precipitation, the static pressure type liquid level sensor detects and feeds back a liquid level signal, the controller receives the signal and controls the air cylinder and the centrifugal pump, so that the liquid suction assembly descends to suck water, water at the boundary with the precipitate is reserved, then the air cylinder is controlled to return, and the electromagnetic valve is opened; and the other centrifugal pump is started to pump away the sediment, and separation of water and the sediment is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of toy processing, in particular to a wastewater treatment and circulation device for a children's toy painting workshop. Background Art

[0002] Wastewater generated during the production process of children's toy paint shops often contains a variety of hazardous substances, such as paint residue, organic solvents, and heavy metals. These substances pose potential risks to the environment and human health. Wastewater treatment has become a crucial component in ensuring toy safety and environmental protection. Treating this wastewater typically requires a combination of physical, chemical, and biological treatment technologies. Physical treatment may include filtration and sedimentation to remove suspended solids and larger particles. Furthermore, wastewater treatment also needs to consider wastewater recovery and reuse to reduce resource waste.

[0003] Therefore, wastewater treatment and circulation equipment is needed to cooperate with the wastewater sedimentation process to carry out the differentiation, transportation and treatment of water and sediment.

[0004] Therefore, a wastewater treatment and circulation device for a children's toy spray painting workshop is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a wastewater treatment and circulation device for a children's toy spray painting workshop.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A wastewater treatment and circulation device for a children's toy painting workshop includes a tank body, the tank body is connected to a wastewater inlet, the top surface of the tank body is connected to a water outlet pipe, the bottom of the tank body is connected to a slurry outlet pipe, the water outlet pipe and the slurry outlet pipe are respectively connected to a centrifugal pump 1 and a centrifugal pump 2, the slurry outlet pipe is also connected to a solenoid valve, and the end of the water outlet pipe away from the centrifugal pump 1 is connected to a liquid suction component located in the tank body and capable of vertical displacement.

[0008] Preferably, a cylinder is fixedly connected to the top surface of the tank body, a piston rod of the cylinder passes through the tank body to the interior thereof, and the piston rod of the cylinder is fixedly connected to the liquid suction assembly to achieve vertical displacement of the liquid suction assembly.

[0009] Preferably, the liquid suction assembly includes a bellows connected to the water outlet pipe, a connecting tube connected to the bellows and closed at the lower end, and a plurality of branch pipes connected to the peripheral wall of the connecting tube, wherein the branch pipes are L-shaped and the upper ends of the branch pipes are open.

[0010] Preferably, it also includes a control circuit, which controls the operation of the cylinder, centrifugal pump 1, centrifugal pump 2, and solenoid valve according to the relative level of the liquid surface to the sediment level.

[0011] Preferably, the control circuit includes

[0012] A static pressure liquid level sensor, wherein the probe of the static pressure liquid level sensor is arranged on the outer peripheral wall of the connecting tube, and the static pressure liquid level sensor detects the liquid level relative to the sediment level and feeds back a liquid level signal;

[0013] a voltage comparison circuit, the input end of which is coupled to the output end of the liquid surface relative to the sediment level, the voltage comparison circuit outputting a comparison signal in response to the liquid level signal being greater than a preset liquid level reference signal;

[0014] A controller, wherein the input end of the controller is coupled to the output end of the voltage comparison circuit, and the output end of the controller is coupled to the input ends of the cylinder, the solenoid valve, the centrifugal pump 1 and the centrifugal pump 2 respectively.

[0015] Preferably, the voltage comparison circuit includes a voltage comparator, and the controller includes an STM32F103RCT6 embedded microcontroller.

[0016] The utility model has the following beneficial effects:

[0017] The utility model puts wastewater into the tank through the wastewater inlet. After sedimentation, the static pressure liquid level sensor detects and feeds back the liquid level signal. After receiving the signal, the controller controls the cylinder and the centrifugal pump to make the liquid suction component descend to suck the water body, retaining the water at the junction with the sediment. Then the cylinder is controlled to return to its position, the solenoid valve is opened, and another centrifugal pump is started to pump away the sediment, thereby completing the separation of water and sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This is a structural block diagram of the control circuit in this utility model.

[0022] 1. Tank body; 101. Wastewater inlet; 2. Cylinder; 3. Outlet pipe; 301. Centrifugal pump 1; 302. Bellows; 303. Connecting tube; 304. Branch pipe; 4. Slurry outlet pipe; 401. Solenoid valve; 402. Centrifugal pump 2; 501. Static pressure level sensor; 502. Voltage comparison circuit; 6. Controller. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use, or are the orientation or position relationship commonly understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0028] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] A wastewater treatment and circulation device for a children's toy spray painting workshop, such as Figure 1 As shown, it includes a tank body 1, which is connected to a wastewater inlet 101, a water outlet pipe 3 is connected to the top surface of the tank body 1, and a slurry outlet pipe 4 is connected to the bottom of the tank body 1. The water outlet pipe 3 and the slurry outlet pipe 4 are respectively connected to a centrifugal pump 1 301 and a centrifugal pump 2 402, and the slurry outlet pipe 4 is also connected to a solenoid valve 401. The end of the water outlet pipe 3 away from the centrifugal pump 1 301 is connected to a liquid suction component located in the tank body 1 and capable of vertical displacement.

[0030] Among them, such as Figure 2 As shown, the top surface of the tank body 1 is fixedly connected to the cylinder 2, and the piston rod of the cylinder 2 passes through the tank body 1 to the interior thereof. The piston rod of the cylinder 2 is fixedly connected to the liquid suction assembly to realize the vertical displacement of the liquid suction assembly. The liquid suction assembly includes a bellows 302 connected to the water outlet pipe 3, a connecting cylinder 303 connected to the bellows 302 and with a closed lower end, and a plurality of branch pipes 304 connected to the peripheral wall of the connecting cylinder 303. The branch pipes 304 are L-shaped, and the upper ends of the branch pipes 304 are open.

[0031] like Figure 3 As shown, it also includes a control circuit, which controls the operation of the cylinder 2, centrifugal pump 1 301, centrifugal pump 2 402, and solenoid valve 401 according to the relative sediment level of the liquid surface. The control circuit includes a static pressure liquid level sensor 501, a voltage comparison circuit 502, and a controller 6. The voltage comparison circuit 502 includes a voltage comparator, and the controller 6 includes an STM32F103RCT6 embedded microcontroller.

[0032] The probe of the static pressure liquid level sensor 501 is set on the outer wall of the connecting tube 303. The static pressure liquid level sensor 501 detects the liquid surface relative to the sediment level and feeds back the liquid level signal; the input end of the voltage comparison circuit 502 is coupled to the output end of the liquid surface relative to the sediment level. The voltage comparison circuit 502 outputs a comparison signal in response to the liquid level signal being greater than a preset liquid level reference signal; the input end of the controller 6 is coupled to the output end of the voltage comparison circuit 502, and the output end of the controller 6 is coupled to the input ends of the cylinder 2, the solenoid valve 401, the centrifugal pump 1 301 and the centrifugal pump 2 402 respectively.

[0033] When the present invention is actually working, wastewater is put into the tank body 1 through the wastewater inlet 101 and left to stand. After the water and sediment are precipitated and separated, the probe of the static pressure liquid level sensor 501 detects the liquid level relative to the sediment level, and feeds back a liquid level signal to the voltage comparison circuit 502. After the voltage comparison circuit 502 determines that the liquid level signal is greater than the liquid level reference signal, it will output a comparison signal to the controller 6. The controller 6 will control the cylinder 2, so that the piston rod of the cylinder 2 will drive the branch pipe 304 and the entire liquid suction component to drop to a certain height, and then the controller 6 controls the centrifugal pump 301 to start working, and then the water is sucked into it from the upper end opening of the branch pipe 304, and then the water is sucked into it through the branch pipe 304. 04. The connecting tube 303, the bellows 302 and the water outlet pipe 3 are sucked out in this order. The L-shaped structure of the branch pipe 304 ensures that a part of the water will still remain in the tank body 1. Since this part of the water is at the junction with the sediment, this part of the water will not be pumped out after it is lower than the upper end opening of the branch pipe 304. At this time, the controller 6 controls the centrifugal pump 1 301 to stop working, and controls the cylinder 2 to drive the liquid suction component to move upward back to its original position, and then opens the solenoid valve 401 through the controller 6 and starts the centrifugal pump 2 402 to work, so that the sediment with a certain amount of water can be pumped out through the slurry outlet pipe 4, thereby ensuring that the sediment in the tank body 1 is removed as much as possible, thereby completing the separation of water and sediment.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wastewater treatment and circulation device for a children's toy spray painting workshop, characterized in that: The invention comprises a tank body (1), wherein the tank body (1) is connected to a wastewater inlet (101), the top surface of the tank body (1) is connected to a water outlet pipe (3), the bottom of the tank body (1) is connected to a slurry outlet pipe (4), the water outlet pipe (3) and the slurry outlet pipe (4) are respectively connected to a centrifugal pump 1 (301) and a centrifugal pump 2 (402), the slurry outlet pipe (4) is also connected to a solenoid valve (401), and the end of the water outlet pipe (3) away from the centrifugal pump 1 (301) is connected to a liquid suction component located in the tank body (1) and capable of vertical displacement.

2. A wastewater treatment and circulation device for a children's toy painting workshop according to claim 1, characterized in that: The top surface of the tank body (1) is fixedly connected to a cylinder (2), the piston rod of the cylinder (2) passes through the tank body (1) to the interior thereof, and the piston rod of the cylinder (2) is fixedly connected to the liquid suction component to achieve vertical displacement of the liquid suction component.

3. The wastewater treatment and circulation device for a children's toy painting workshop according to claim 1 is characterized in that: The liquid suction assembly comprises a bellows (302) connected to the water outlet pipe (3), a connecting tube (303) connected to the bellows (302) and having a closed lower end, and a plurality of branch tubes (304) connected to the peripheral wall of the connecting tube (303), wherein the branch tubes (304) are L-shaped and the upper ends of the branch tubes (304) are open.

4. The wastewater treatment and circulation device for a children's toy painting workshop according to claim 2, characterized in that: It also includes a control circuit, which controls the operation of the cylinder (2), centrifugal pump 1 (301), centrifugal pump 2 (402), and electromagnetic valve (401) according to the relative level of the liquid surface to the sediment level.

5. The wastewater treatment and circulation device for a children's toy painting workshop according to claim 4, characterized in that: The control circuit includes A static pressure type liquid level sensor (501), wherein a probe of the static pressure type liquid level sensor (501) is arranged on the outer peripheral wall of the connecting tube (303), and the static pressure type liquid level sensor (501) detects the liquid level relative to the sediment level and feeds back a liquid level signal; A voltage comparison circuit (502) having an input terminal coupled to an output terminal of a liquid surface relative to a sediment level, wherein the voltage comparison circuit (502) outputs a comparison signal in response to a liquid level signal being greater than a preset liquid level reference signal; A controller (6), wherein an input end of the controller (6) is coupled to an output end of the voltage comparison circuit (502), and an output end of the controller (6) is coupled to input ends of the cylinder (2), the solenoid valve (401), the centrifugal pump 1 (301), and the centrifugal pump 2 (402), respectively.

6. The wastewater treatment and circulation device for a children's toy painting workshop according to claim 5, characterized in that: The voltage comparison circuit (502) includes a voltage comparator, and the controller (6) includes an STM32F103RCT6 embedded microcontroller.

Images