Integrated pretreatment equipment for industrial wastewater

Abstract

The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to integrated industrial wastewater pretreatment equipment which comprises a rack and a hollow box body arranged on the rack, the upper part of the box body is a reaction area, and the lower part of the box body is a funnel-shaped settling area; a stirring and mixing assembly, a water inlet pipe, a water outlet pipe, a dosing pipe and a sludge discharge pipe are arranged on the box body, the stirring and mixing assembly is used for uniformly mixing industrial wastewater to be precipitated with chemicals, the water inlet pipe, the water outlet pipe and the dosing pipe are communicated with the reaction area of the box body, the sludge discharge pipe is communicated with the bottom of the precipitation area, and electric valves are arranged on the water inlet pipe, the water outlet pipe and the sludge discharge pipe; the technical problems that existing split type treatment equipment is complex in result, large in size and large in occupied area are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial wastewater treatment, and in particular relates to integrated industrial wastewater pretreatment equipment. Background Art

[0002] Industrial wastewater often contains harmful substances and needs to be purified before it can be discharged. Sedimentation treatment of industrial wastewater is a common purification process. In order to improve the sedimentation effect, flocculants and other agents are usually added to the wastewater. The more evenly the wastewater and the agent are mixed, the better the sedimentation effect.

[0003] Chinese utility model patent publication number CN 219585884 U discloses an industrial wastewater treatment device comprising a mixing tank, a dosing assembly, and a sedimentation tank located below the mixing tank. After the wastewater enters the mixing tank, a chemical is added to the wastewater via the dosing assembly. The evenly mixed wastewater and chemical then enter the sedimentation tank for sedimentation. The above-mentioned treatment device has the advantages of even chemical mixing and good sedimentation effect, but the mixing tank and sedimentation tank are separated, the structure is relatively complex, and the treatment device is large in size and occupies a large area. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated industrial wastewater pretreatment device to solve the technical problems of the existing split-type treatment equipment, such as complex results, large volume and large floor space.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An integrated pretreatment device for industrial wastewater comprises a frame and a hollow box arranged on the frame, the upper part of the box is a reaction zone, the lower part of the box is a funnel-shaped sedimentation zone, the box is provided with a stirring and mixing assembly, a water inlet pipe, a drain pipe, a dosing pipe and a mud discharge pipe, the stirring and mixing assembly is used to evenly mix the industrial wastewater to be precipitated with the chemical, the water inlet pipe, the drain pipe and the dosing pipe are connected to the reaction zone of the box, the mud discharge pipe is connected to the bottom of the sedimentation zone, and the water inlet pipe, the drain pipe and the mud discharge pipe are all provided with electric valves.

[0007] Furthermore, the stirring and mixing assembly includes a stirrer, stirring blades, and an air intake pipe for transporting air into the box. The stirrer is fixed on the top of the box, the stirring blades are located in the box, the stirrer is used to drive the stirring blades to rotate, and the air intake end of the air intake pipe is located in the center of the sedimentation area of ​​the box.

[0008] Furthermore, three drainage pipes are provided, and the three drainage pipes are respectively connected to the upper part, the middle part and the bottom part of the reaction zone of the box.

[0009] Furthermore, three dosing pipes are provided, and the three dosing pipes are used to add pH regulator, demulsifier and flocculant into the box respectively.

[0010] Furthermore, a pH meter is also provided on the box.

[0011] Furthermore, the box body includes an outer shell and an inner shell. The outer shell is made of carbon steel material, and the inner shell is made of glass fiber reinforced plastic anti-corrosion material. The reaction zone and the precipitation zone are arranged in the inner shell.

[0012] Furthermore, it also includes a controller, which is electrically connected to the mixer and all electric valves. The controller is used to control the opening and closing of all electric valves, the opening and closing of the mixer, and the amount of medicine injected into the dosing pipe.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. The utility model provides an integrated pretreatment equipment for industrial wastewater. By combining the reaction zone and the sedimentation zone in a closed box, the industrial wastewater is evenly mixed with the reagent in the reaction zone and then directly precipitated in the sedimentation zone. Compared with the existing split treatment equipment, the utility model has a simple and compact structure, a small equipment size, and a small footprint.

[0015] 2. The utility model is provided with a stirring and mixing component. After the industrial wastewater and the medicine to be precipitated enter the box, the stirrer drives the stirring blades to rotate, so that the industrial wastewater and the medicine are mixed evenly. At the same time, the air inlet pipe injects air into the box to further enhance the mixing effect, improve the mixing efficiency, and ensure the subsequent precipitation effect of the industrial wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] In the above drawings: frame 1, box 2, reaction zone 21, sedimentation zone 22, stirring and mixing component 3, stirrer 31, stirring blade 32, air inlet pipe 33, water inlet pipe 4, drain pipe 5, dosing pipe 6, mud discharge pipe 7, pH meter 8, electric valve 9. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The present invention is further described in detail below with reference to the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional terms such as "upper, lower" and "top, bottom" are generally based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. Unless otherwise indicated, these directional terms do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention; the directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0020] As a preferred embodiment of the present invention, Figure 1 As shown, this embodiment provides an integrated pretreatment equipment for industrial wastewater, including a frame 1 and a box 2 fixed on the frame 1. The box 2 is hollow inside and includes an outer shell and an inner liner. The outer shell is made of carbon steel material to ensure the strength of the equipment. The inner liner is made of fiberglass anti-corrosion material to ensure the corrosion resistance of the equipment, so that the inner liner can effectively resist the corrosion of industrial wastewater, extend the service life of the equipment, and reduce maintenance costs.

[0021] In the above embodiment, the upper part of the inner tank is the reaction zone 21, the lower part of the inner tank is the funnel-shaped precipitation zone 22, and the box body 2 is provided with a stirring and mixing component 3, a water inlet pipe 4, a drain pipe 5, a dosing pipe 6, a mud discharge pipe 7 and an acid-base meter 8; the stirring and mixing component 3 is used to mix the industrial wastewater to be precipitated with the reagent evenly; the water inlet pipe 4, the drain pipe 5, the dosing pipe 6 are connected to the reaction zone 21 of the box body 2, the water inlet pipe 4 is arranged on the left side of the box body 2, and three drain pipes 5 are arranged in this embodiment. The three drain pipes 5 are arranged on the right side of the box body 2, and the three drain pipes 5 are connected to the box body 2 respectively. The upper, middle and bottom parts of the right side of the reaction zone 21 of the box 2 are connected. In this embodiment, three dosing pipes 6 are provided. The three dosing pipes 6 are arranged on the left side of the top of the box 2. The three dosing pipes 6 are used to add the pH regulator, demulsifier and flocculant into the box 2 respectively; the mud discharge pipe 7 is connected to the bottom of the sedimentation area 22, and the mud discharge pipe 7 is used to discharge the sludge after the industrial wastewater is precipitated; the acid-base meter 8 is installed on the top of the box 2, and the acid-base meter 8 is used to detect the pH value of the industrial wastewater in the box 2; the water inlet pipe 4, the three drainage pipes 5 and the mud discharge pipe 7 are all equipped with an electric valve 9.

[0022] By combining the reaction zone 21 and the sedimentation zone 22 in a closed box 2, the industrial wastewater is evenly mixed with the reagent in the reaction zone 21 and then directly precipitated in the sedimentation zone 22. The overall structure of the equipment is simple, compact, small in size, and occupies a small area. The sedimentation zone 22 is set to be funnel-shaped, which is conducive to the discharge of sludge generated after the precipitation of industrial wastewater, and avoids the accumulation of sludge in the box 2, which affects the subsequent precipitation of industrial wastewater. By arranging drainage pipes 5 at the upper, middle and lower parts of the reaction zone 21 respectively, after discharging the precipitated industrial wastewater, the electric valve 9 of the drainage pipe 5 can be opened in sequence from top to bottom according to the water level of the reaction zone 21 to avoid bringing out sludge in the sedimentation zone 22 during drainage.

[0023] The stirring and mixing assembly 3 includes a stirrer 31, a stirring blade 32, and an air intake pipe 33 connected to the interior of the box 2. The stirrer 31 is fixedly mounted on the top of the box 2, the stirring blade 32 is located inside the box 2, the stirrer 31 is used to drive the stirring blade 32 to rotate, and the air intake pipe 33 is used to transport air into the box 2. The air intake end of the air intake pipe 33 is located in the center of the sedimentation area 22 of the box 2.

[0024] By setting up a stirring and mixing component 3, after the industrial wastewater and the chemical to be precipitated enter the box 2, the stirrer 31 drives the stirring blade 32 to rotate, so that the industrial wastewater and the chemical are evenly mixed. At the same time, the air inlet pipe 33 injects air into the box 2, and the air rises evenly from the bottom of the box 2, further enhancing the mixing effect, improving the mixing efficiency, and ensuring the subsequent precipitation effect of the industrial wastewater. The COD of the treated industrial wastewater can be reduced from 100,000-200,000 mg / L to 40,000-50,000 mg / L, and the ammonia nitrogen can be reduced from 1,000 mg / L to 400-500 mg / L, with significant treatment effect.

[0025] The integrated industrial wastewater pretreatment equipment of this embodiment also includes a controller, which is electrically connected to the mixer 31, the pH meter 8, and all the electric valves 9. The controller is used to control the opening and closing of all the electric valves 9, and is also used to control the opening and closing of the mixer 31, as well as to read the test value of the pH meter 8 and control the amount of medicine injected into the dosing pipe 6 according to the test value; by setting up a control system, real-time monitoring and intelligent adjustment of the equipment can be achieved to ensure that the treatment effect of industrial wastewater is stable and meets the standards.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An integrated industrial wastewater pretreatment equipment, characterized by: The invention comprises a frame (1) and a hollow box (2) arranged on the frame (1), the upper part of the box (2) is a reaction zone (21), the lower part of the box (2) is a funnel-shaped sedimentation zone (22), the box (2) is provided with a stirring and mixing component (3), a water inlet pipe (4), a drainage pipe (5), a dosing pipe (6) and a mud discharge pipe (7), the stirring and mixing component (3) is used to uniformly mix the industrial wastewater to be precipitated with the reagent, the water inlet pipe (4), the drainage pipe (5) and the dosing pipe (6) are connected to the reaction zone (21) of the box (2), the mud discharge pipe (7) is connected to the bottom of the sedimentation zone (22), and the water inlet pipe (4), the drainage pipe (5) and the mud discharge pipe (7) are all provided with an electric valve (9); The stirring and mixing assembly (3) includes a stirrer (31), a stirring blade (32), and an air inlet pipe (33) for conveying air into the box (2), the stirrer (31) is fixed to the top of the box (2), the stirring blade (32) is located in the box (2), the stirrer (31) is used to drive the stirring blade (32) to rotate, and the air inlet end of the air inlet pipe (33) is located at the center of the sedimentation area (22) of the box (2); Three drainage pipes (5) are provided, and the three drainage pipes (5) are respectively connected to the upper part, the middle part and the bottom part of the reaction zone (21) of the box body (2).

2. The integrated industrial wastewater pretreatment equipment according to claim 1, characterized in that: Three dosing tubes (6) are provided, and the three dosing tubes (6) are used to add a pH regulator, a demulsifier, and a flocculant into the box (2) respectively.

3. The integrated industrial wastewater pretreatment equipment according to claim 1, characterized in that: The box (2) is also provided with a pH meter (8).

4. An integrated industrial wastewater pretreatment device according to any one of claims 1 to 3, characterized in that: The box (2) comprises an outer shell and an inner shell, the outer shell is made of carbon steel material, the inner shell is made of glass fiber reinforced plastic anti-corrosion material, and the reaction zone (21) and the precipitation zone (22) are arranged in the inner shell.

5. An integrated industrial wastewater pretreatment device according to any one of claims 1 to 3, characterized in that: The device further comprises a controller, which is electrically connected to the mixer (31) and all the electric valves (9). The controller is used to control the opening and closing of all the electric valves (9), the opening and closing of the mixer (31), and the amount of medicine injected into the dosing pipe (6).

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