Integrated two-stage solid-liquid separation device

Abstract

The utility model relates to an integrated two-stage solid-liquid separation device, which belongs to the technical field of wastewater treatment and solid-liquid separation and comprises a primary separation tank and a secondary separation tank, the primary separation tank and the secondary separation tank jointly form a sedimentation tank, and a solid-liquid separation device is mounted between the inner sides of the primary separation tank and the secondary separation tank; the solid-liquid separation device comprises a driving assembly mounted in the primary separation tank and a connecting pipeline mounted between the opposite sides of the primary separation tank and the secondary separation tank. According to the integrated two-stage solid-liquid separation device, a two-stage separation function can be provided, the treatment efficiency and the treatment capacity of solid-liquid separation are remarkably improved, large-particle solids can be rapidly removed through the primary separation area, the treatment burden is relieved for the secondary separation area, wastewater can be further purified through efficient filtration of the secondary separation area, and the treatment effect is good. The treatment requirements of different wastewater can be met, and efficient and stable solid-liquid separation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment and solid-liquid separation, in particular to an integrated two-stage solid-liquid separation device. Background Art

[0002] In today's environmental protection and wastewater treatment fields, solid-liquid separation technology is one of the most important core technologies. At present, most of the solid-liquid separation equipment widely available on the market have adopted the design concept of single-stage separation. Admittedly, this design can achieve the basic purpose of solid-liquid separation to a certain extent. However, once faced with the challenge of high-concentration suspended solid wastewater, its treatment efficiency and processing capacity will become extremely limited.

[0003] Among the many existing solid-liquid separation technologies, the main ones used are equipment such as single sedimentation tanks, filtration devices or centrifuges. These devices attempt to separate solid particles from liquids by physical or mechanical means. However, when faced with high-concentration suspended solids, the separation effect of these devices is often difficult to achieve an ideal level, and there are also a series of problems that cannot be ignored, such as large footprint and high maintenance costs.

[0004] First, the existing technologies have relatively low processing efficiency, which makes them incapable of meeting the needs of large-scale, high-efficiency solid-liquid separation. Secondly, these devices usually need to occupy a large space, which is undoubtedly a very challenging problem for treatment sites with limited space resources. Furthermore, when faced with high-concentration suspended solids, the processing capacity of existing technologies is obviously insufficient and cannot achieve satisfactory separation effects. Finally, the high equipment maintenance costs also increase the overall cost of wastewater treatment to a certain extent, which is an unfavorable factor for the long-term sustainable development of environmental protection. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an integrated two-stage solid-liquid separation device, which has the advantages of efficient filtration, enhanced filtration effect, high degree of automation, and small footprint. It solves the problems of low processing efficiency, large equipment, high maintenance cost, and unsatisfactory separation effect when processing high-concentration suspended solids in existing solid-liquid separation devices.

[0006] In summary, the utility model provides the following technical solutions: an integrated two-stage solid-liquid separation device, comprising a primary separation tank and a secondary separation tank, wherein the primary separation tank and the secondary separation tank together constitute a sedimentation tank, and a solid-liquid separation device is installed between the inner sides of the primary separation tank and the secondary separation tank;

[0007] The solid-liquid separation device includes a driving component installed in the primary separation tank and a connecting pipe installed between the opposite sides of the primary separation tank and the secondary separation tank. The primary separation tank and the secondary separation tank are interconnected through the connecting pipe. A pre-treatment device penetrating the secondary separation tank is installed on one side of the secondary separation tank. A backwashing device is installed in the secondary separation tank. Ultrasonic transducers are evenly distributed in the secondary separation tank, and an automatic control system is connected to the secondary separation tank.

[0008] Furthermore, the driving component includes a stirring motor, a stirring rod, a stirring paddle, and a reinforcing strut. One side of the stirring motor is fixedly installed on one side of the primary separation tank. One end of the stirring rod is fixedly connected to the output shaft of the stirring motor, and the opposite end extends above the connecting pipe. One side of the stirring paddle is fixedly connected to the outside of the stirring rod. The number of the stirring rods is two and they are symmetrically distributed in a mirror image. Both ends of the reinforcing strut are respectively fixedly connected to one side of the stirring paddle and the outside of the stirring rod.

[0009] By adopting the above technical solution, under the combined action of the stirring motor, the stirring rod, the stirring paddle, and the reinforcing strut, large-particle solids can be prevented from depositing at the bottom of the sedimentation tank to form dead corners, thereby improving the sedimentation efficiency.

[0010] Furthermore, the pre-treatment device includes a chemical storage tank, a fixing plate, a water pump, and a chemical outlet pipe. One side of the fixing plate is fixedly installed on one side of the secondary separation tank by bolts. One side of the chemical storage tank is fixedly installed on one side of the fixing plate by bolts. One end of the water pump penetrates and is fixedly connected to one side of the chemical storage tank. One end of the chemical outlet pipe is fixedly connected to the other side of the water pump, and the opposite end penetrates the secondary separation tank and is fixedly connected to the secondary separation tank.

[0011] By adopting the above technical solution, under the combined action of the chemical storage tank, the fixing plate, the water pump, and the chemical outlet pipe, chemical agents such as coagulants or flocculants can be added to the wastewater to promote the aggregation of suspended solids, facilitating subsequent filtration treatment.

[0012] Furthermore, the backwashing device includes a water production tank, a backwashing pump, a backwashing pipe, and a water filter. One side of the water production tank is installed on the ground. One side of the backwashing pump penetrates the water production tank and is fixedly connected to the water production tank. One end of the backwashing pipe is fixedly connected to one side of the backwashing pump, and the opposite end penetrates the secondary separation tank and is fixedly connected to one side of the water filter. One side of the water filter is fixedly connected to the outside of the backwashing pipe and is located in the secondary separation tank. The number of the water filters is multiple.

[0013] By adopting the above technical solution, the filtering medium can be periodically backwashed under the combined action of the production water tank, the backwash pump, the backwash pipeline and the water filter to remove the dirt attached to the filtering medium, thereby prolonging the service life of the filtering medium.

[0014] Furthermore, the ultrasonic transducer is located below the water filter and is used to generate high-frequency vibrations.

[0015] By adopting the above technical solution, it acts on the filtering medium to enhance the filtering effect, prevent blockage and improve the filtering speed.

[0016] Furthermore, the automatic control system includes a controller, a first regulating valve, a second regulating valve, an outlet pipeline and a water quality detection sensor; the controller is fixedly connected to one side of the primary separation tank, one side of the first regulating valve penetrates and is fixedly connected to one side of the primary separation tank, one end of the outlet pipeline penetrates and is fixedly connected to one side of the secondary separation tank, and the opposite other end is fixedly connected to one side of the second regulating valve. One side of the water quality detection sensor is fixedly connected to the inner side wall of the secondary separation tank, and the water quality detection sensor is installed at the inlet of the secondary separation tank.

[0017] By adopting the above technical solution, under the combined action of the controller, the first regulating valve, the second regulating valve, the outlet pipeline and the water quality detection sensor, the water quality detection sensor is installed at the inlet of the secondary separation tank for real-time detection of water quality parameters of the wastewater, such as pH value, turbidity, COD, etc. The controller is the core component of the automatic control system. It receives the detection data of the water quality detection sensor and automatically adjusts the operating state of the device according to the preset processing parameters, such as the rotation speed of the stirring paddle, the filtering speed of the water filter, the chemical addition amount of the chemical storage tank, etc., to ensure the stability and optimization of the treatment effect.

[0018] Compared with the prior art, the present utility model provides an integrated double-stage solid-liquid separation device, which has the following beneficial effects:

[0019] This integrated double-stage solid-liquid separation device, through the mutual cooperation between the secondary separation tank on the primary separation tank and the solid-liquid separation device, can provide a double-stage separation function, significantly improving the processing efficiency and processing capacity of solid-liquid separation. The primary separation area can quickly remove large-particle solids, reducing the processing burden for the secondary separation area. The high-efficiency filtration in the secondary separation area can further purify the wastewater. The introduction of the stirring device effectively prevents the deposition of large-particle solids at the bottom of the sedimentation tank to form dead corners, thereby improving the sedimentation efficiency. The introduction of the ultrasonic vibration device enhances the filtering effect, effectively prevents the blockage of the filtering device, and improves the filtering speed, and can meet the treatment requirements of different wastewaters, realizing efficient and stable solid-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the structural schematic diagram of the present utility model;

[0021] Figure 2 is Figure 1 the partial enlarged schematic diagram of part A in;

[0022] Figure 3 is Figure 1 the three-dimensional schematic diagram of the stirring paddle connection structure in.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1, primary separation tank; 2, secondary separation tank; 300, solid-liquid separation device; 3011, stirring motor; 3012, stirring rod; 3013, stirring paddle; 3014, strengthening support rod; 302, connecting pipe; 3031, medicine storage tank; 3032, fixing plate; 3033, water pump; 3034, medicine outlet pipe; 3041, water production tank; 3042, backwashing pump; 3043, backwashing pipeline; 3044, water filter; 305, ultrasonic transducer; 3061, controller; 3062, first regulating valve; 3063, second regulating valve; 3064, water outlet pipeline; 3065, water quality detection sensor. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: an integrated dual-stage solid-liquid separation device, including a primary separation tank 1 and a secondary separation tank 2. The primary separation tank 1 and the secondary separation tank 2 together form a sedimentation tank, and a solid-liquid separation device 300 is installed between the inner sides of the primary separation tank 1 and the secondary separation tank 2;

[0027] Through the combined use of the secondary separation tank 2 on the primary separation tank 1 and the solid-liquid separation device 300, a two-stage separation function can be provided, significantly improving the treatment efficiency and capacity of solid-liquid separation. The primary separation area can quickly remove large particle solids, reducing the treatment burden on the secondary separation area. The efficient filtration in the secondary separation area can further purify the wastewater. The introduction of the stirring device effectively prevents the deposition of large particle solids at the bottom of the sedimentation tank to form dead corners, thereby improving the sedimentation efficiency. The introduction of the ultrasonic vibration device enhances the filtration effect, effectively preventing the blockage of the filtration device and increasing the filtration speed, meeting the treatment requirements of different wastewaters and achieving efficient and stable solid-liquid separation.

[0028] In this embodiment, the solid-liquid separation device 300 is a structure for a two-stage separation function, significantly improving the treatment efficiency and capacity of solid-liquid separation. The primary separation area can quickly remove large particle solids.

[0029] As Figure 1 、 Figure 2 and Figure 3 shown, the solid-liquid separation device 300 includes a driving component installed in the primary separation tank 1 and a connecting pipe 302 installed between the opposite sides of the primary separation tank 1 and the secondary separation tank 2. The primary separation tank 1 and the secondary separation tank 2 are interconnected through the connecting pipe 302. A pretreatment device penetrating the secondary separation tank 2 is installed on one side of the secondary separation tank 2. A backwashing device is installed in the secondary separation tank 2. Ultrasonic transducers 305 are evenly distributed in the secondary separation tank 2, and an automatic control system is connected to the secondary separation tank 2.

[0030] It should be noted that the driving component includes a stirring motor 3011, a stirring rod 3012, a stirring paddle 3013, and a reinforcing support rod 3014. One side of the stirring motor 3011 is fixedly installed on one side of the primary separation tank 1. One end of the stirring rod 3012 is fixedly connected to the output shaft of the stirring motor 3011, and the opposite end extends above the connecting pipe 302. One side of the stirring paddle 3013 is fixedly connected to the outside of the stirring rod 3012. The number of stirring rods 3012 is two and they are symmetrically distributed in a mirror image. The two ends of the reinforcing support rod 3014 are respectively fixedly connected to one side of the stirring paddle 3013 and the outside of the stirring rod 3012, which can prevent large particle solids from depositing at the bottom of the sedimentation tank to form dead corners, thereby improving the sedimentation efficiency.

[0031] It can be understood that the pre-treatment device includes a medicine storage tank 3031, a fixing plate 3032, a water pump 3033 and a medicine outlet pipe 3034; one side of the fixing plate 3032 is fixedly installed on one side of the secondary separation tank 2 by bolts, one side of the medicine storage tank 3031 is fixedly installed on one side of the fixing plate 3032 by bolts, one end of the water pump 3033 penetrates and is fixedly connected to one side of the medicine storage tank 3031, one end of the medicine outlet pipe 3034 is fixedly connected to the other side of the water pump 3033, and the opposite end penetrates the secondary separation tank 2 and is fixedly connected to the secondary separation tank 2, for adding chemical agents, such as coagulants or flocculants, to the wastewater to promote the aggregation of suspended substances and facilitate subsequent filtration treatment.

[0032] In addition, the backwashing device includes a water production tank 3041, a backwashing pump 3042, a backwashing pipeline 3043 and a water filter 3044; one side of the water production tank 3041 is installed on the ground, one side of the backwashing pump 3042 penetrates the water production tank 3041 and is fixedly connected to the water production tank 3041, one end of the backwashing pipeline 3043 is fixedly connected to one side of the backwashing pump 3042, and the opposite end penetrates the secondary separation tank 2 and is fixedly connected to one side of the water filter 3044. One side of the water filter 3044 is fixedly connected to the outer side of the backwashing pipeline 3043 and is located in the secondary separation tank 2. The number of water filters 3044 is multiple, for periodically backwashing the filter medium to remove the dirt attached to the filter medium, thereby extending the service life of the filter medium.

[0033] In this embodiment, the ultrasonic transducer 305 is located below the water filter 3044 and is used to generate high-frequency vibrations, acting on the filter medium to enhance the filtering effect, prevent blockage, and improve the filtering speed.

[0034] It should also be noted that the automatic control system includes a controller 3061, a first regulating valve 3062, a second regulating valve 3063, an outlet pipe 3064, and a water quality detection sensor 3065. The controller 3061 is fixedly connected to one side of the primary separation tank 1. One side of the first regulating valve 3062 penetrates and is fixedly connected to one side of the primary separation tank 1. One end of the outlet pipe 3064 penetrates and is fixedly connected to one side of the secondary separation tank 2, and the opposite end is fixedly connected to one side of the second regulating valve 3063. One side of the water quality detection sensor 3065 is fixedly connected to the inner side wall of the secondary separation tank 2. The water quality detection sensor 3065 is installed at the entrance of the secondary separation tank 2 and is used to detect the water quality parameters of the wastewater in real time, such as pH value, turbidity, COD, etc. The controller 3061 is the core component of the automatic control system. It receives the detection data of the water quality detection sensor 3065 and automatically adjusts the operating state of the device according to the preset processing parameters, such as the rotation speed of the stirring paddle 3013, the filtration speed of the water filter 3044, the chemical dosage of the chemical storage tank 3031, etc., to ensure the stability and optimization of the treatment effect.

[0035] The working principle of the above embodiment is as follows:

[0036] The wastewater containing solid particles enters the primary separation tank 1 from the inlet. The stirring motor 3011 is started, and the stirring motor 3011 drives the stirring rod 3012 and the stirring paddle 3013 to rotate. With the assistance of the strengthening support rod 3014, large particle solids are prevented from depositing at the bottom of the primary separation tank 1 to form dead corners, thereby accelerating the precipitation of large particle solids. The rotation of the stirring rod 3012 and the stirring paddle 3013 forms a vortex flow, increasing the chance of particle collision and improving the precipitation efficiency. The precipitated large particle solids settle to the bottom of the primary separation tank 1 under the action of gravity, initially realizing solid-liquid separation.

[0037] The wastewater after primary separation enters the secondary separation tank 2 through the connecting pipe 302. During this process, the water pump 3033 is started, and the chemical agent in the chemical storage tank 3031 is added to the wastewater through the chemical agent outlet pipe 3034, such as adding a coagulant or a flocculant, to promote the aggregation and precipitation of suspended substances. The addition of the chemical agent in the pre-treatment device improves the efficiency of subsequent filtration.

[0038] In the secondary separation tank 2, multiple water filters 3044 are installed to achieve more refined solid-liquid separation. Over time, dirt may accumulate on the surface of the water filter 3044. To maintain its filtration performance, the backwashing device comes into play. The backwashing pump 3042 introduces the clean water in the water production tank 3041 into the water filter 3044 through the backwashing pipe 3043 for reverse flushing to remove the attached dirt and keep the water filter 3044 unobstructed.

[0039] To further enhance the filtering effect and prevent the water filter 3044 from being blocked, the ultrasonic transducer 305 located below the water filter 3044 generates high-frequency vibrations. These vibration waves are transmitted through the liquid to the surface of the water filter 3044, breaking up the attached tiny particles and improving the filtering speed and efficiency.

[0040] The water quality detection sensor 3065 is installed near the outlet of the secondary separation tank 2 to detect water quality parameters such as pH value, turbidity, and COD in real time. The sensor transmits the data to the controller 3061.

[0041] The controller 3061 is the core component of the automatic control system. According to the preset processing parameters and the data provided by the water quality detection sensor 3065, it automatically adjusts the operating states of the following devices. By controlling the opening degrees of the first regulating valve 3062 and the second regulating valve 3063, it adjusts the flow rate and pressure of the wastewater to ensure the best filtering effect. It adjusts the rotation speed of the stirring paddle 3013 to adapt to the characteristics and treatment requirements of the wastewater. According to the water quality situation, it automatically controls the operating time and chemical dosage of the water pump 3033 to ensure the accurate addition of chemical agents. The treated wastewater is discharged through the outlet pipe 3064 to achieve the purpose of purification.

[0042] Compared with the prior art: This integrated double-stage solid-liquid separation device, through the mutual cooperation between the secondary separation tank 2 on the primary separation tank 1 and the solid-liquid separation device 300, can provide a double-stage separation function, significantly improving the processing efficiency and processing capacity of solid-liquid separation. The primary separation area can quickly remove large-particle solids, reducing the processing burden on the secondary separation area. The high-efficiency filtration in the secondary separation area can further purify the wastewater. The introduction of the stirring device effectively prevents large-particle solids from depositing at the bottom of the sedimentation tank to form dead corners, thus improving the sedimentation efficiency. The introduction of the ultrasonic vibration device enhances the filtering effect, effectively prevents the blockage of the filtering device, and improves the filtering speed. It can meet the processing requirements of different wastewaters, achieve efficient and stable solid-liquid separation, and solve the problems of low processing efficiency, large equipment size, high maintenance cost, and unsatisfactory separation effect when dealing with high-concentration suspended solids in the existing solid-liquid separation devices.

[0043] All the electrical components mentioned in the text are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed power connection technology and the provision of the power supply also belong to the common knowledge in this field, so this application will not elaborate in detail.

Claims

1. An integrated two-stage solid-liquid separation device, comprising a primary separation tank (1) and a secondary separation tank (2), wherein the primary separation tank (1) and the secondary separation tank (2) together form a sedimentation tank, characterized in that: A solid-liquid separation device (300) is installed between the inner sides of the primary separation tank (1) and the secondary separation tank (2); The solid-liquid separation device (300) includes a driving component installed in the primary separation tank (1) and a connecting pipe (302) installed between the opposite sides of the primary separation tank (1) and the secondary separation tank (2). The primary separation tank (1) and the secondary separation tank (2) are interconnected through the connecting pipe (302). A pre-treatment device penetrating the secondary separation tank (2) is installed on one side of the secondary separation tank (2). A backwashing device is installed in the secondary separation tank (2). Ultrasonic transducers (305) are evenly distributed in the secondary separation tank (2), and an automatic control system is connected to the secondary separation tank (2).

2. The integrated two-stage solid-liquid separation device according to claim 1, wherein: The driving component includes a stirring motor (3011), a stirring rod (3012), a stirring paddle (3013), and a strengthening support rod (3014); one side of the stirring motor (3011) is fixedly installed on one side of the primary separation tank (1). One end of the stirring rod (3012) is fixedly connected to the output shaft of the stirring motor (3011), and the opposite end extends above the connecting pipe (302). One side of the stirring paddle (3013) is fixedly connected to the outside of the stirring rod (3012), and the number of the stirring rods (3012) is two and they are symmetrically distributed in a mirror image. Both ends of the strengthening support rod (3014) are respectively fixedly connected to one side of the stirring paddle (3013) and the outside of the stirring rod (3012).

3. The integrated two-stage solid-liquid separation device according to claim 1, wherein: The pre-treatment device includes a medicine storage tank (3031), a fixing plate (3032), a water pump (3033), and a medicine outlet pipe (3034); one side of the fixing plate (3032) is fixedly installed on one side of the secondary separation tank (2) through bolts. One side of the medicine storage tank (3031) is fixedly installed on one side of the fixing plate (3032) through bolts. One end of the water pump (3033) penetrates and is fixedly connected to one side of the medicine storage tank (3031). One end of the medicine outlet pipe (3034) is fixedly connected to the other side of the water pump (3033), and the opposite end penetrates the secondary separation tank (2) and is fixedly connected to the secondary separation tank (2).

4. The integrated two-stage solid-liquid separation device according to claim 1, wherein: The backwashing device includes a water production tank (3041), a backwashing pump (3042), a backwashing pipeline (3043) and a water filter (3044); one side of the water production tank (3041) is installed on the ground, one side of the backwashing pump (3042) penetrates through the water production tank (3041) and is fixedly connected to the water production tank (3041), one end of the backwashing pipeline (3043) is fixedly connected to one side of the backwashing pump (3042), and the opposite end penetrates through the secondary separation tank (2) and is fixedly connected to one side of the water filter (3044), one side of the water filter (3044) is fixedly connected to the outer side of the backwashing pipeline (3043) and is located in the secondary separation tank (2), and the number of the water filters (3044) is multiple.

5. The integrated two-stage solid-liquid separation device according to claim 4, characterized in that: The ultrasonic transducer (305) is located below the water filter (3044) and is used to generate high-frequency vibration.

6. The integrated two-stage solid-liquid separation device according to claim 1, wherein: The automatic control system includes a controller (3061), a first regulating valve (3062), a second regulating valve (3063), a water outlet pipeline (3064) and a water quality detection sensor (3065); the controller (3061) is fixedly connected to one side of the primary separation tank (1), one side of the first regulating valve (3062) penetrates through and is fixedly connected to one side of the primary separation tank (1), one end of the water outlet pipeline (3064) penetrates through and is fixedly connected to one side of the secondary separation tank (2), and the opposite end is fixedly connected to one side of the second regulating valve (3063), and one side of the water quality detection sensor (3065) is fixedly connected to the inner side wall of the secondary separation tank (2).

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