Efficient circular precipitator for multistage pore plate reaction

Abstract

A multistage pore plate reaction high-efficiency circular precipitator belongs to the technical field of water supply and drainage, and is technically characterized by comprising a multistage pipeline mixer which is mounted at the front end outside equipment and used for quickly mixing a coagulation agent with muddy water; the multi-stage pore plate reaction cylinder is mounted in the middle of the equipment and is used for carrying out multi-stage efficient coagulation reaction on a medicament and muddy water to form alumen ustum; the pre-sedimentation unit is used for uniformly distributing water, adjusting water flow and carrying out primary separation and sedimentation on relatively large alumen ustum; the inclined tube precipitation unit is provided with a honeycomb inclined tube, the suspended matter separation surface area is increased, fine alumen ustum and suspended matter are effectively precipitated in the inclined tube precipitation unit, the water collection unit is provided with a water collection weir, clear water enters the top water collection weir to be discharged, the turbidity of treated effluent can be smaller than or equal to 15 NTU, and the sludge collection unit is provided with a circular sludge hopper and a disc sludge collection device at the bottom of the equipment to collect precipitated sludge. The sludge is discharged out of the equipment by opening the sludge discharge valve regularly. The multistage pore plate reaction efficient circular precipitator has the functions of energy conservation, thorough sludge discharge, good operation effect and high treatment efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment and water purification, and is a highly efficient purification precipitator in water treatment. Background Art

[0002] Sedimentation is one of the most basic treatment methods in water treatment. It uses the density difference between suspended particles and water to slowly sink suspended matter in water under the action of gravity, thereby achieving the purpose of separating and removing pollutants. The quality of sedimentation directly affects the operation results of the water treatment system.

[0003] Most of the existing sedimentation equipment uses additional power to carry out mechanical stirring reaction, which consumes a lot of reagents, has high operating energy consumption, poor sedimentation effect, incomplete sludge discharge, and unstable water output. A sedimentation tank with no additional power, no energy consumption, saving reagents, high processing efficiency, and good sedimentation effect is needed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the embodiments of the present utility model is to provide a new type of precipitator to solve the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage orifice plate reaction high-efficiency circular precipitator, comprising:

[0007] Box 1 is the main body;

[0008] Multi-stage pipeline mixer 2, installed at the front end of the equipment, used for rapid mixing of coagulant and muddy water;

[0009] The multi-stage orifice plate reaction cylinder 3 is installed in the middle of the equipment and is used for the multi-stage high-efficiency coagulation reaction between the reagent and the muddy water to form alum flowers;

[0010] Pre-precipitation unit 4, evenly distributes water, adjusts water flow, and performs initial separation and precipitation of larger alum flowers;

[0011] Inclined tube sedimentation unit 5 is equipped with honeycomb inclined tubes to increase the separation surface area of ​​suspended matter, where fine alum flowers and suspended matter are effectively precipitated;

[0012] Water collection unit 6, a water collection weir is set, and clean water enters the top water collection weir and is discharged. After treatment, the turbidity of the effluent can reach ≤15NTU;

[0013] Mud collecting unit 7, a circular mud bucket is set at the bottom of the equipment to collect the sediment sludge;

[0014] A disc mud collecting device 8 is arranged in the circular mud hopper, and the mud is discharged out of the equipment by opening the mud discharge valve at a fixed time.

[0015] Compared with the prior art, the embodiments of the utility model have the following beneficial effects: the utility model is provided with a multi-stage pipeline mixer and a multi-stage orifice plate reaction cylinder to carry out two flocculation reactions, the reaction is thorough and the effect is good, which is conducive to the formation of large alum flowers.

[0016] The utility model is provided with a pre-sedimentation zone and an inclined tube sedimentation zone. The pre-sedimentation zone is used for uniform water distribution and water flow velocity adjustment, which is beneficial to subsequent sedimentation. Meanwhile, larger alum flocs are first settled to the mud collection zone under the action of their own weight without disturbing the water flow upward. The smaller alum flocs are then rapidly condensed and enlarged under the guidance of the pre-settled alum flocs, and enter the inclined tube sedimentation zone for sedimentation and separation. Since the inclined tube sedimentation zone is provided with a honeycomb inclined tube with a large surface area, the alum flocs collide and aggregate with each other again when rising to the honeycomb inclined tube, so that smaller coagulants that cannot be released by self-weight are mutually adsorbed and aggregated, and finally become large coagulants that are precipitated to the bottom for separation. The sedimentation effect is good, and the turbidity of the upper effluent after sedimentation can reach ≤15NTU.

[0017] The utility model is provided with a circular mud bucket and a disc mud collecting device. The circular mud bucket is arranged at the bottom. The mud bucket has a large mud storage capacity. A triangular cone is arranged in the middle to help the mud slide into the mud bucket. The mud bucket is provided with a disc mud collecting device. By opening the mud discharge valve, the mud can be completely discharged without generating mud fluctuations to affect the rising water flow, which is conducive to sedimentation.

[0018] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a multi-stage orifice plate reaction high-efficiency circular precipitator provided in an embodiment of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the multi-stage orifice plate reaction cylinder unit of the utility model.

[0021] Figure 3 It is a cross-sectional schematic diagram of the mud collecting unit and the disc mud collecting device of the utility model.

[0022] Figure markings: 1-box, 2-multi-stage pipeline mixer, 3-multi-stage orifice reaction cylinder, 31-water inlet pipe, 32-trumpet reaction cylinder, 33-multi-stage orifice plate, 34-reflection plate, 4-pre-sedimentation unit, 5-inclined tube sedimentation unit, 6-water collection unit, 7-mud collecting unit, 71-triangular cone, 72-circular mud bucket, 8-disc mud collecting device, 81-disc mud collecting pipe, 82-mud collecting main pipe, 83-mud discharge valve. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] See also:

[0026] Figure 1 It is a structural schematic diagram of the utility model from one perspective;

[0027] Figure 2 ; It is a plan view of the mud collecting unit and the disc mud collecting device of the utility model

[0028] Figure 3 This is a structural schematic diagram of a multi-stage orifice plate reaction tube of the utility model;

[0029] include:

[0030] Box 1 is the main body;

[0031] Multi-stage pipeline mixer 2, installed at the front end of the equipment, used for rapid mixing of coagulant and muddy water;

[0032] The multi-stage orifice plate reaction cylinder 3 is installed in the middle of the equipment and is used for the multi-stage high-efficiency coagulation reaction between the reagent and the muddy water to form alum flowers;

[0033] Pre-precipitation unit 4, evenly distributes water, adjusts water flow, and performs initial separation and precipitation of larger alum flowers;

[0034] Inclined tube sedimentation unit 5 is provided with honeycomb inclined tubes to increase the separation surface area of ​​suspended matter, where fine alum flowers and suspended matter are effectively precipitated;

[0035] Water collection unit 6, a water collection weir is set, and clean water enters the top water collection weir and is discharged. After treatment, the turbidity of the effluent can reach ≤15NTU;

[0036] Mud collecting unit 7, a circular mud bucket is set at the bottom of the equipment to collect the sediment sludge;

[0037] A disc mud collecting device 8 is arranged in the circular mud hopper, and the mud is discharged out of the equipment by opening the mud discharge valve at a fixed time.

[0038] In an embodiment of the utility model, water to be purified and flocculant enter the multi-stage pipeline mixer 2 through the water inlet pipe for mixing. The multi-stage pipeline mixer 2 is generally composed of four sections, each section has a 45° twisted spiral blade, which is divided into left-handed and right-handed. The spiral blades in two adjacent sections rotate in opposite directions and are staggered by 90°. They mainly perform flow segmentation, radial mixing, and reverse rotation, and continuously and intensely mix and diffuse the purified water and flocculant, thereby achieving the mixing purpose. The mixing time is about 40 seconds.

[0039] Then the water mixed with flocculant enters the water inlet 31 of the multi-stage orifice plate reaction tube 3 in the middle of the box 1, and the water flows from top to bottom into the trumpet reaction tube 32. A fixed multi-stage orifice plate 33 with different angles is arranged in the tube. The multi-stage orifice plate 33 has up to 5 levels and a 90-degree twisted surface. The orifice plate surface is provided with water holes of different densities according to the flow rate calculated based on scientific and practical basis, so that the water-flocculant can be contacted and mixed quickly. The water flows faster and faster from top to bottom, shrinks and expands successively, forms a vortex, causes particle collision, and fine suspended particles in the water are dispersed. Floating objects, particulate impurities, colloids, organic matter, bacteria, etc. are linked together by flocculants to form larger coagulants. The water flows in a zigzag manner between the multi-stage orifice plates or shrinks and expands between the waves continuously, forming numerous small eddies, which improve the particle collision coagulation effect. At the same time, the coagulation of the previous stage is released between the orifice plates of the latter stage, so that smaller alum flowers gradually form large alum flowers in the downward flow process. The alum flowers flow out evenly from the gap between the reflector 34 and the bottom of the horn reaction tube 32 along with the water flow. The reaction time of the whole process is about 10 minutes.

[0040] The alum flocs flow evenly into the pre-sedimentation unit 4, where the water flow is slow and even. The large alum flocs gradually sink to the mud collecting unit 7 due to their own weight, and the smaller alum flocs gradually form large alum flocs driven by the water flow, which is fully prepared for the subsequent sedimentation.

[0041] The water flows upward continuously into the inclined tube sedimentation unit 5, which is provided with a honeycomb inclined tube with an inclination angle of 60°. The smaller alum flocs are rapidly condensed and enlarged under the guidance of the pre-settled alum flocs, and are precipitated and separated in this area. Since the honeycomb inclined tube has a large surface area, the alum flocs collide and aggregate with each other again when they rise to the honeycomb inclined tube, so that the smaller coagulants that cannot be released by their own weight are adsorbed and aggregated with each other, and the suspended alum flocs continue to fall, and finally become large coagulants and settle to the mud collection unit 7, while the clean water continues to rise and finally enters the top water collection unit 6. The water collection unit 6 is evenly provided with rows of water collection weirs, and the clean water is collected by the weir teeth and then discharged through the outlet pipe. After treatment, the turbidity of the outlet water can reach ≤15NTU.

[0042] The suspended matter, particulate impurities, colloids, organic matter, bacteria, etc. formed into alum bodies by flocculation reaction are all settled into the mud collecting unit 7 at the bottom of the equipment. A triangular cone 71 is arranged in this area, and the angle is greater than 55°, so that the settled sludge can slide into the circular mud hopper 72. There is enough height between the circular mud hopper 72 and the triangular cone 71, which is beneficial to the sedimentation and concentration of the sludge, and the mud storage capacity is large.

[0043] A disc mud collecting device 8 is evenly arranged in the circular mud hopper 72, which consists of a disc mud collecting pipe 81, a mud collecting main pipe 82, and a mud discharge valve 83. The mud collecting pipe is covered with a plurality of mud holes according to calculations. When the mud discharge valve is opened, the bottom sludge is pressed into the disc mud collecting pipe 81 by water pressure and then discharged out of the equipment through the mud collecting main pipe 82.

[0044] The working principle of the utility model is as follows: the water to be purified and the flocculant enter the multi-stage pipeline mixer 2 together for preliminary mixing, and then the water mixed with the flocculant enters the multi-stage orifice plate reaction tube 3 in the middle of the box body 1 for forced contact mixing to form a flocculation reaction, and the fine suspended matter, particulate impurities, colloids, organic matter, bacteria and the like in the water are linked together by the flocculant to form a larger coagulant alum flower, and the large alum flower body continuously sinks in the pre-settling unit 4 due to the action of gravity, and the small alum flower body rises to the inclined tube sedimentation unit 5 with the water flow, and because the honeycomb inclined tube has a large surface area, the alum flower bodies collide and aggregate with each other again when rising to the honeycomb inclined tube, so that the smaller coagulants that cannot be released by self-weight are adsorbed and aggregated with each other, and the suspended alum flower bodies continuously descend, and finally become large coagulants and precipitate to the mud collecting unit 7, while the clear water continuously rises, and finally enters the top water collecting unit 6, and is discharged after being collected, and the turbidity of the effluent after treatment can reach ≤15NTU. A disc mud collecting device 8 is provided in the mud collecting unit 7, and the mud is discharged by opening the mud discharge valve.

[0045] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage orifice plate reaction high efficiency circular precipitator, characterized in that: include: The box body (1) is the main body; A multi-stage pipeline mixer (2), installed at the front end of the device; A multi-stage orifice plate reaction cylinder (3) is installed in the middle of the equipment; a pre-precipitation unit (4); an inclined tube sedimentation unit (5) is provided with a honeycomb inclined tube; a water collection unit (6) is provided with a water collection weir; a mud collection unit (7) is provided with a circular mud bucket at the bottom of the equipment; and a disc mud collection device (8) is provided in the circular mud bucket.

2. A multi-stage orifice plate reaction high-efficiency circular precipitator according to claim 1, characterized in that The multi-stage orifice plate reaction cylinder (3) is installed in the middle of the equipment, and is composed of a water inlet pipe (31), a horn reaction cylinder (32), a multi-stage orifice plate (33), and a reflection plate (34), which are arranged from top to bottom, and the multi-stage orifice plate (33) is set at different angles according to the water flow speed.

3. A multi-stage orifice plate reaction high-efficiency circular precipitator according to claim 1, characterized in that The mud collecting unit (7) has a triangular cone (71) arranged in the middle of the bottom, circular mud buckets (72) arranged around it, and a disc mud collecting device (8) arranged in the middle of the circular mud bucket (72). The disc mud collecting device (8) is composed of a disc mud collecting pipe (81), a mud collecting main pipe (82), and a mud discharge valve (83).

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