Reaction and precipitation integrated device with concentration function

Abstract

The utility model relates to a reaction precipitation integrated device with concentration, it includes first cylinder, second cylinder, third cylinder, feed subassembly, blender and aeration subassembly, the second cylinder is built in the first cylinder, the outer wall of second cylinder forms the water hole that is communicated with the first cylinder, third cylinder is built in the second cylinder, and the blender forms the water hole that is communicated with the first cylinder. The top of the third cylinder is lower than the second cylinder, the feeding assembly is communicated with the third cylinder, the stirring end of the stirrer is arranged in the third cylinder, and the aeration assembly is arranged in the second cylinder; waste water and chemicals are added into the third cylinder through the feeding assembly and stirred by the stirrer to form mixed liquid, the mixed liquid overflows into the second cylinder and is aerated by the aeration assembly, and the mixed liquid is subjected to a flocculation reaction to form a mud-water mixture.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a reaction and precipitation integrated device with concentration. Background Art

[0002] In water supply or sewage treatment projects, flocculation and sedimentation are often used as pretreatment or post-treatment processes to remove suspended solids or colloidal substances in water. The flocculation and sedimentation process usually includes functional units such as dosing and mixing, flocculation reaction, and sedimentation and separation. Each unit is often carried out in different devices and connected to each other through pipes and valves.

[0003] For example, the utility model patent with application number CN202022283584.1 proposes a micro-sand sedimentation tank for treating grinding silicon powder wastewater, wherein a sedimentation tank, a flocculation tank, a treatment tank, a sedimentation tank, and a mixing tank are set up, and the grinding silicon powder wastewater enters the mixing tank through a sewage pipe, and workers put flocculants into the mixing tank, and the stirring motor mixes the flocculant and the wastewater. The silicon powder in the wastewater will form tiny alum flowers under the action of the flocculant, and the tiny alum flowers will be suspended in the wastewater, and the wastewater with added flocculants enters the flocculation tank through the water inlet pipe, and the workers put micro-sand into the flocculation tank, and the water pump sends the wastewater with added flocculants and micro-sand into the sedimentation tank, using the micro-alum flowers formed by silicon powder as floc nuclei, through the bridging adsorption effect of the polymer chain and the deposition and netting effect of the micro-sand particles, the tiny alum flowers can quickly generate alum flowers with higher density, and the alum flowers with increased density will quickly settle down.

[0004] However, the above-mentioned multiple cell body configuration has the following problems:

[0005] 1) The equipment is scattered, with many pipelines, valves and pipe fittings, large investment and complex operation and management;

[0006] 2) Passages and maintenance passages need to be reserved between different devices, which takes up a large area;

[0007] 3) There are many pipe fittings, the water flow distance is long, the head loss is large, and the operating energy consumption is high. Utility Model Content

[0008] In view of this, it is necessary to provide a reaction-precipitation integrated device with concentration to solve the problem.

[0009] The utility model provides an integrated reaction and precipitation device with concentration, comprising a first cylinder, a second cylinder, a third cylinder, a feeding assembly, a stirrer and an aeration assembly, wherein the second cylinder is built in the first cylinder, a water hole communicating with the first cylinder is formed on the outer wall of the second cylinder, the third cylinder is built in the second cylinder, the top of the third cylinder is lower than the second cylinder, the feeding assembly is communicated with the third cylinder, and is used for adding wastewater and a medicine into the third cylinder, the stirring end of the stirrer is built in the third cylinder, the wastewater and the medicine are stirred by the stirrer to form a mixed liquid which overflows into the second cylinder, the aeration assembly is built in the second cylinder, and the mixed liquid is flocculated to form a mud-water mixture, and the mud-water mixture passes through the water hole and enters the first cylinder for precipitation reaction.

[0010] Furthermore, the first cylinder includes a first annular structure, a first conical structure and a cylindrical structure which are sequentially connected in a vertical downward direction, the first annular structure is located above the water hole, and a sedimentation separation zone is formed inside it, the first conical structure gradually expands in a vertical upward direction, the first conical structure is located below the water hole, and a sedimentation temporary storage zone is formed inside it, and a sedimentation concentration zone is formed inside the cylindrical structure.

[0011] Furthermore, it also includes a mud discharge pipe, an annular water outlet weir and a water outlet pipe. The mud discharge pipe is connected to the sedimentation concentration area. The water outlet weir is fixedly arranged on the inner wall of the top of the first annular structure and is connected to the water outlet pipe.

[0012] Furthermore, a plurality of legs are fixedly connected to the bottom of the first cylinder.

[0013] Furthermore, the second cylinder includes a second annular structure and a second conical structure connected in sequence in a vertical downward direction, the second conical structure gradually expands in a vertical upward direction, the inner bottom wall of the second conical structure is fixedly connected to the bottom of the third cylinder, and the water hole is formed on the second conical structure.

[0014] Furthermore, there are multiple water holes, and the multiple water holes are evenly arranged along the circumference of the second conical structure.

[0015] Furthermore, it also includes a plurality of guide plates corresponding to the plurality of water holes, the plurality of guide plates are vertically arranged, the guide plates are fixedly connected to the bottom of the second conical structure, and are arranged below the corresponding water holes.

[0016] Furthermore, the feeding assembly includes a water inlet pipe and a dosing pipe, one end of the water inlet pipe is connected to sewage, and the other end of the water inlet pipe is connected to the center position of the bottom of the second cylinder, one end of the dosing pipe is connected to the agent, and the other end of the dosing pipe is connected to the water inlet pipe.

[0017] Furthermore, the aeration assembly includes an air pump and an aeration pipe, the aeration pipe is arranged through the second cylinder, one end of the aeration pipe is closed, and the other end of the aeration pipe is connected to the air pump, and a portion of the aeration pipe located in the second cylinder is provided with a plurality of aeration holes, and the plurality of aeration holes are arranged in sequence along the length direction of the aeration pipe.

[0018] Furthermore, the aeration pipe is attached to the bottom of the second cylinder and to the side wall of the third cylinder.

[0019] Compared with the prior art, the wastewater and the reagent of the feed component are added to the third cylinder, and after being stirred by the stirrer, a mixed liquid is formed which overflows into the second cylinder, and is aerated through the aeration component, and the mixed liquid undergoes a flocculation reaction to form a mud-water mixture, and the mud-water mixture passes through the water hole into the first cylinder for a precipitation reaction. The number of pipes, valves and pipe fittings in the integrated device is greatly reduced, which reduces investment and facilitates operation and management. Due to its own concentration function, the moisture content of the sludge is reduced, and the cost of sludge treatment is greatly reduced. The treatment device is compactly arranged and occupies a small area. The water flow distance between the treatment devices is short, the head loss is small, and the energy consumption is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the reaction-precipitation integrated device with concentration provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0022] like Figure 1As shown, the utility model provides a reaction precipitation integrated device with concentration, comprising a first cylinder 100, a second cylinder 200, a third cylinder 300, a feeding assembly 400, a mixer 500 and an aeration assembly 600, the second cylinder 200 is built in the first cylinder 100, the outer wall of the second cylinder 200 is formed with a water hole 210 connected to the first cylinder 100, the third cylinder 300 is built in the second cylinder 200, and the top of the third cylinder 300 is lower than the second cylinder 200. The feed assembly 400 is connected to the third cylinder 300 to add wastewater and chemicals into the third cylinder 300. The stirring end of the mixer 500 is built in the third cylinder 300. The wastewater and chemicals are stirred by the mixer 500 to form a mixed liquid which overflows into the second cylinder 200. The aeration assembly 600 is built in the second cylinder 200 to provide the mixed liquid with flocculation reaction to form a mud-water mixture. The mud-water mixture passes through the water hole 210 and enters the first cylinder 100 for precipitation reaction.

[0023] During implementation, wastewater and reagents from the feed component 400 are added to the third cylinder 300, which is stirred by the mixer 500 to form a mixed liquid that overflows into the second cylinder 200. The mixed liquid is aerated by the aeration component 600, and flocculation reaction is performed to form a mud-water mixture. The mud-water mixture passes through the water hole 210 and enters the first cylinder 100 for precipitation reaction. The number of pipes, valves and pipe fittings in the integrated device is greatly reduced, which reduces investment and facilitates operation and management. Due to its own concentration function, the moisture content of the sludge is reduced, the cost of sludge treatment is greatly reduced, the treatment device is compactly arranged, and the footprint is small; the water flow distance between the treatment devices is short, the head loss is small, and the energy consumption is low.

[0024] The first cylinder 100 in this embodiment includes a first annular structure, a first conical structure and a cylindrical structure which are sequentially connected in a vertical downward direction. The first annular structure is located above the water hole 210 and a sedimentation separation zone 110 is formed therein. The first conical structure gradually expands in a vertical upward direction. The first conical structure is located below the water hole 210 and a sedimentation temporary storage zone 120 is formed therein. A sedimentation concentration zone 130 is formed inside the cylindrical structure.

[0025] In one embodiment, it further comprises a mud discharge pipe 140, an annular water outlet weir 150 and a water outlet pipe. The mud discharge pipe 140 is connected to the sedimentation concentration area 130. The water outlet weir 150 is fixedly arranged on the inner wall of the top of the first annular structure and is connected to the water outlet pipe. The clear liquid overflowed last time is discharged from the water outlet weir 150 and the water outlet pipe, and the concentrated sludge at the bottom is discharged from the mud discharge pipe 140.

[0026] The bottom of the first cylinder 100 is fixedly connected with a plurality of legs 160. In order to prevent mud accumulation, the cone angle of the first cone structure is 45°-50°.

[0027] The second cylinder 200 in this embodiment includes a second annular structure and a second conical structure connected in sequence along the vertical downward direction. The second conical structure gradually expands along the vertical upward direction. The inner bottom wall of the second conical structure is fixedly connected to the bottom of the third cylinder 300, and the water hole 210 is formed on the second conical structure.

[0028] In one embodiment, there are multiple water holes 210 , and the multiple water holes 210 are evenly arranged along the circumference of the second conical structure.

[0029] In one embodiment, a plurality of guide plates 220 corresponding to the plurality of water holes 210 are also included. The plurality of guide plates 220 are vertically arranged. The guide plates 220 are fixedly connected to the bottom of the second conical structure and are arranged below the corresponding water holes 210 .

[0030] The feeding assembly 400 in this embodiment includes a water inlet pipe 410 and a dosing pipe 420. One end of the water inlet pipe 410 is connected to sewage, and the other end of the water inlet pipe 410 is connected to the center position of the bottom of the second cylinder 200. One end of the dosing pipe 420 is connected to the agent, and the other end of the dosing pipe 420 is connected to the water inlet pipe 410.

[0031] The mixer 500 in this embodiment includes a motor, a rotating shaft and a stirring blade. The motor is installed at the upper position of the third cylinder. The output end of the motor is connected to the stirring blade via the rotating shaft. The rotation of the stirring blade allows the incoming water and the flocculating agent to be quickly mixed. The mixing time is 1-2 minutes, and the blade speed is 60-80rpm. The mixed water overflows into the second cylinder 200 through the top surface of the first cylinder 100.

[0032] The aeration assembly 600 in this embodiment includes an air pump and an aeration pipe. The aeration pipe is arranged through the second cylinder 200. One end of the aeration pipe is closed, and the other end of the aeration pipe is connected to the air pump. The part of the aeration pipe located in the second cylinder 200 is provided with a plurality of aeration holes, and the plurality of aeration holes are arranged in sequence along the length direction of the aeration pipe.

[0033] In one embodiment, the aeration pipe is attached to the bottom of the second cylinder 200 and to the side wall of the third cylinder 300 .

[0034] The cone angle of the second cone structure in this embodiment is 30°~35°, and a row of water holes 210 are opened along the circumference of the upper part of the cone bucket. The flow rate of the hole is 0.1-0.15m / s, wherein the flocculation reaction time is 10-20min, and aeration holes with an aperture of 5mm are staggered and opened at an angle of 45° downward on the wall of the aeration pipe. The flocculation reaction product (mud-water mixture) enters the sedimentation and separation area 110 through the water holes 210. In order to avoid the disturbance of the water flow to the sludge in the temporary storage area, a guide plate 220 is vertically arranged below the water hole 210.

[0035] Compared with the prior art: wastewater and chemicals from the feed assembly 400 are added to the third cylinder 300, and after being stirred by the mixer 500, a mixed liquid is formed which overflows into the second cylinder 200, and is aerated by the aeration assembly 600. The mixed liquid undergoes a flocculation reaction to form a mud-water mixture, and the mud-water mixture passes through the water hole 210 and enters the first cylinder 100 for a precipitation reaction. The number of pipes, valves and pipe fittings in the integrated device is greatly reduced, which reduces investment and facilitates operation and management. Due to its own concentration function, the moisture content of the sludge is reduced, the cost of sludge treatment is greatly reduced, the treatment device is compactly arranged, and occupies a small area; the water flow distance between the treatment devices is short, the head loss is small, and the energy consumption is low.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A reaction-precipitation integrated device with concentration, characterized in that: include: First cylinder; A second cylinder is built into the first cylinder, and a water hole communicating with the first cylinder is formed on the outer wall of the second cylinder; a third cylinder, which is built into the second cylinder, and the top of the third cylinder is lower than the second cylinder; A feeding assembly, which is in communication with the third cylinder and is used for adding wastewater and reagents into the third cylinder; A mixer, the mixing end of which is built into the third cylinder, and the wastewater and the reagent are mixed by the mixer to form a mixed liquid which overflows into the second cylinder; The aeration assembly is built into the second cylinder to provide the mixed liquid with flocculation reaction to form a mud-water mixture, and the mud-water mixture passes through the water hole into the first cylinder for precipitation reaction.

2. The reaction-precipitation integrated device with concentration according to claim 1, characterized in that: The first cylinder includes a first annular structure, a first conical structure and a cylindrical structure which are sequentially connected in a vertical downward direction. The first annular structure is located above the water hole and a sedimentation separation zone is formed inside the structure. The first conical structure gradually expands in a vertical upward direction. The first conical structure is located below the water hole and a sedimentation temporary storage zone is formed inside the structure. A sedimentation concentration zone is formed inside the cylindrical structure.

3. The reaction-precipitation integrated device with concentration according to claim 2, characterized in that: It also includes a mud discharge pipe, an annular water outlet weir and a water outlet pipe. The mud discharge pipe is connected to the sedimentation and concentration area. The water outlet weir is fixedly arranged on the inner wall of the top of the first annular structure and is connected to the water outlet pipe.

4. The reaction-precipitation integrated device with concentration according to claim 1, characterized in that: A plurality of supporting legs are fixedly connected to the bottom of the first cylinder.

5. The reaction-precipitation integrated device with concentration according to claim 1, characterized in that: The second cylinder includes a second annular structure and a second conical structure connected in sequence along a vertical downward direction, the second conical structure gradually expands along a vertical upward direction, the inner bottom wall of the second conical structure is fixedly connected to the bottom of the third cylinder, and the water hole is formed on the second conical structure.

6. The reaction-precipitation integrated device with concentration according to claim 5, characterized in that: There are multiple water holes, and the multiple water holes are evenly arranged along the circumference of the second conical structure.

7. The reaction-precipitation integrated device with concentration according to claim 6, characterized in that: It also includes a plurality of guide plates corresponding to the plurality of water holes one by one, the plurality of guide plates are vertically arranged, the guide plates are fixedly connected to the bottom of the second conical structure, and are arranged below the corresponding water holes.

8. The reaction-precipitation integrated device with concentration according to claim 1, characterized in that: The feeding assembly includes a water inlet pipe and a dosing pipe, one end of the water inlet pipe is connected to sewage, and the other end of the water inlet pipe is connected to the center position of the bottom of the second cylinder, one end of the dosing pipe is connected to the agent, and the other end of the dosing pipe is connected to the water inlet pipe.

9. The reaction-precipitation integrated device with concentration according to claim 1, characterized in that: The aeration assembly includes an air pump and an aeration pipe, the aeration pipe is arranged through the second cylinder, one end of the aeration pipe is closed, and the other end of the aeration pipe is connected to the air pump. The part of the aeration pipe located in the second cylinder is provided with a plurality of aeration holes, and the plurality of aeration holes are arranged in sequence along the length direction of the aeration pipe.

10. The reaction-precipitation integrated device with concentration according to claim 9, characterized in that: The aeration pipe is attached to the bottom of the second cylinder and to the side wall of the third cylinder.

Images