CN217025512U - Water distribution and medicine distribution structure for softening water treatment of induced crystallization granulation fluidized bed - Google Patents
Water distribution and medicine distribution structure for softening water treatment of induced crystallization granulation fluidized bed Download PDFInfo
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Abstract
The utility model provides a water and medicine distribution structure for softening water treatment of an induced crystallization granulation fluidized bed, which belongs to the technical field of fluidized bed water treatment, a plurality of mixed flow nozzles are arranged on a partition plate, a water distribution pipeline conveys water to the lower part of the partition plate, a medicine distribution pipeline conveys medicines to a plurality of medicine distributors through medicine distribution branch pipes, the medicine distributors and the mixed flow nozzles are alternately penetrated on the partition plate, the medicines output by the medicine distributors, the water in the lower part of the partition plate and the crystal seeds added by a crystal seed adding pipe all flow into an input port of the mixed flow nozzle and are sprayed out from an output port in a vertical upward direction, then the medicines sink to the bottom of a tank along the wall of the tank from the vertical outside of a water distribution area and re-enter the mixed flow input port nozzle, so that liquid and particles form circulating flow in the tank body to increase the effects of crystallization granulation fluidization and water treatment, the water distribution structure and the medicine distribution structure are reasonable in design, the medicine mixing uniformity is improved, the growth speed and the efficiency of the crystallization particles are improved, and the failure rate of the equipment is reduced.
Description
Technical Field
The utility model belongs to the technical field of fluidized bed water treatment, and particularly relates to a water and medicine distributing structure for softening water in an induced crystallization granulation fluidized bed.
Background
The induced crystallization method is to add granular solid matters to accelerate the appearance of crystal nuclei, so that ions participating in reaction are enriched on the surface of the crystal nuclei, and thus the local ion concentration is increased to a supersaturated state.
The fluidized bed crystallization technology combines an induced crystallization principle with a specially designed fluidized bed process, micro-granular solid filler is added into a reaction system as a seed crystal, high-hardness water enters from the bottom of a reactor at a certain flow rate, a reaction agent is added, pretreated inorganic ions (such as calcium ions) form stable crystals (calcium carbonate crystals) on the surface of a carrier by adjusting the supersaturation degree of the high-hardness water and the rising flow rate of the carrier, and the stable crystals are discharged out of a tank after the particle size of the crystals reaches a certain degree, so that the concentration of the inorganic calcium ions in the water is effectively reduced.
The crystallization granulation softening reactor is applied at home and abroad, but due to structural design, a bed layer is unstable, the control requirement on the flow rate of inlet water is high, the water distribution structure and the medicine distribution structure are unreasonable, the water distribution and medicine distribution structure is a pipeline directly penetrating through the granulation softening reactor (tank body), the medicine is not uniformly mixed, the contact time with crystals is short, the circulation efficiency is low, the residual hardness of outlet water is high, the growth speed of crystal particles is slow, the equipment failure rate caused by scale formation on the inner wall is high, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a water and medicine distributing structure for softening water by an induced crystallization granulation fluidized bed, and aims to achieve the technical effects of reasonable design of the water distributing structure and the medicine distributing structure, improvement of medicament mixing uniformity, improvement of growth speed and efficiency of crystal particles and reduction of equipment failure rate.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a water distribution medicine distribution structure of induced crystallization granulation fluidized bed softened water treatment, includes:
the partition plate is arranged in the tank body, is close to the bottom of the tank body, and is used for dividing the tank body into an upper area and a lower area;
the output end of the water distribution pipeline penetrates through the bottom of the tank body and is used for conveying water into a space below the partition plate in the tank body;
the output end of the medicine distributing pipeline penetrates through the side part of the tank body and is used for conveying the medicine into the tank body, a medicine distributing branch pipe is arranged below the partition plate in the tank body and is communicated with the medicine distributing pipeline;
the plurality of medicine distributors are arranged on the partition board in a penetrating mode at equal intervals and are communicated with the medicine distribution branch pipes, and the output ends of the medicine distributors are located above the partition board;
a plurality of mixed flow nozzles, equipartition interval run through locate on the baffle, with the alternative setting of medicine distributor has first input port and second input port, first input port is located the baffle below the second input port is located the baffle top, mixed flow nozzle delivery outlet is located baffle top and its highly be higher than the second input port height, the rivers of baffle below flow into back row in the first input port to the baffle top, the medicament of baffle top with throw extremely seed crystal in the jar all flows in behind the second input port and with the vertical upwards eruption behind the water mixed flow.
In a possible implementation manner, a seed crystal adding pipe is arranged on the tank body, the height of the seed crystal adding pipe communicated with the tank body is greater than the height of the mixed flow nozzle, and seed crystals added into the tank body flow into the second input port of the mixed flow nozzle under the action of negative pressure formed around the mixed flow nozzle.
In a possible implementation manner, the medicine distributor comprises a medicine distribution pipe penetrating through the partition plate, the lower end of the medicine distribution pipe is communicated with the medicine distribution branch pipe, a plurality of nozzles are uniformly distributed on the side part, close to the upper end, of the medicine distribution pipe along the circumferential direction, the nozzles can be sprayed out of the medicine distribution pipe, the opening direction of the nozzles faces to the oblique lower side, and the sprayed medicine can flow into the second input port of the mixed flow nozzle.
In a possible realization mode, the nozzles are uniformly distributed along the circumferential direction, and the aperture of each nozzle is 1-2 mm.
In a possible implementation mode, the output port of the mixed flow nozzle is in a horn shape, the output water, the medicament and the seed particles vertically flow upwards, and a vertically upward water flow thrust is generated in the output direction to push the liquid and the particles in the granulation zone in the tank body to flow upwards, the liquid and the particles rise to a certain height and then fall to the bottom of the reaction zone along the low-pressure zone of the tank wall, and then are sucked into the second input port of the mixed flow nozzle to form a fluidized state through circulating flow, so that the liquid in the tank body is stirred, a low-pressure zone is formed at the second input port of the mixed flow nozzle, and the liquid and the particles circularly flow in the tank body.
In a possible implementation manner, the upper part of the partition board is sequentially divided into a mixing reaction area, a fluidizing area and a separating area from bottom to top along the height direction, and the output port of the mixed flow nozzle and the seed adding pipe are both positioned in the mixing reaction area.
In a possible implementation manner, a non-return structure is arranged at the first input port of the mixed flow nozzle, and the non-return structure is used for preventing particles in the tank body from entering the first input port and further flowing into the lower part of the partition plate when the machine is stopped.
In a possible implementation mode, the tank body is provided with an observation mirror, an inspection manhole and a sampling port, and the inner wall of the tank body is provided with an anti-scaling coating.
The water and medicine distribution structure for the softening water treatment of the induced crystallization granulation fluidized bed has the beneficial effects that: compared with the prior art, the water distribution and medicine distribution structure for the softening water treatment of the induced crystallization granulation fluidized bed is characterized in that a plurality of mixed flow nozzles are arranged on a partition plate, a water distribution pipeline conveys water to the lower part of the partition plate, a medicine distribution pipeline conveys medicines to a plurality of medicine distributors through medicine distribution branch pipes, the medicine distributors and the mixed flow nozzles are alternately arranged on the partition plate in a penetrating way, the medicines output by the medicine distributors, the water in the lower part of the partition plate and the crystal seeds fed by the crystal seed pipes all flow in from an input port of the mixed flow nozzles and are sprayed out from an output port in a vertical upward direction, then the medicines sink to the bottom of a tank along the wall of the tank from the outer side in the vertical direction of a water distribution area and re-enter the input port of the mixed flow nozzles, so that liquid and particles form circulating flow in the tank body to increase the fluidization and water treatment effects of crystallization granulation, the water distribution structure and the medicine distribution structure are reasonable in design, the medicine mixing uniformity is improved, the growth speed and the growth efficiency of the crystallization particles are improved, and the failure rate of the equipment is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an enlarged view of a partial structure of a water and medicine distributing structure for water softening treatment of an induced crystallization granulation fluidized bed according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a medicine distributor of a water and medicine distributing structure for softening water in an induced crystallization granulation fluidized bed according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic structural diagram of a water and medicine distributing structure for water softening treatment of an induced crystallization granulation fluidized bed applied to a tank according to an embodiment of the present invention.
In the figure: 1. a partition plate; 11. a mixed reaction zone; 12. a fluidizing zone; 13. a separation zone; 2. a water distribution pipeline; 3. a medicine distributing pipeline; 4. a medicine distributor; 41. a medicine distributing pipe; 42. a nozzle; 5. a mixed flow nozzle; 51. a first input port; 52. an output port; 53. a second input port; 6. a tank body; 7. a medicine distributing branch pipe; 8. adding a seed crystal tube (a particle tube is arranged); 9. an observation sight glass; 10. a manhole; 11. a sampling pipeline; 12. a water outlet pipeline.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.
The technical principle of the water and medicine distribution structure for the softening water treatment of the induced crystallization granulation fluidized bed provided by the utility model is as follows: the crystallization granulation fluidized bed softening method is characterized in that a certain proportion of crystal seeds are added into water in advance, then an alkaline medicament is added to be uniformly mixed with the water and react with the alkalinity of the water, and the crystallization granulation process is completed by utilizing equipment and hydraulic action on the premise of reasonable structural design of water distribution and medicament distribution, so that the effect of softening the discharged water is achieved.
Referring to fig. 1 to 4, a description will now be given of a water and medicine distribution structure for a crystallization-inducing granulation fluidized bed softening water treatment according to the present invention. A water and medicine distribution structure for softening water in an induced crystallization granulation fluidized bed comprises a partition plate 1, a water distribution pipeline 2, a medicine distribution pipeline 3, a plurality of medicine distributors 4 and a plurality of mixed flow nozzles 5, wherein the partition plate 1 is arranged in a tank 6 and close to the bottom of the tank 6 and is used for dividing the interior of the tank 6 into an upper area and a lower area; the output end of the water distribution pipeline 2 penetrates through the bottom of the tank body 6 and is used for conveying water into a space below the partition plate 1 in the tank body 6; the output end of the medicine distribution pipeline 3 penetrates through the side part of the tank body 6 and is used for conveying medicines into the tank body 6, a medicine distribution branch pipe 7 is arranged below the partition plate 1 in the tank body 6, and the medicine distribution branch pipe 7 is communicated with the medicine distribution pipeline 3; a plurality of medicine distributors 4 are arranged on the partition plate 1 in an equidistant manner and communicated with the medicine distribution branch pipes 7, and the output ends of the medicine distributors 4 are positioned above the partition plate 1; a plurality of mixed flow nozzles 5 are uniformly distributed and penetrate through the partition plate 1 at intervals, are arranged at intervals with the medicine distributor 4 and are provided with a first input port 51 and a second input port 53, the first input port 51 is positioned below the partition plate 1, the second input port 53 is positioned above the partition plate 1, an output port 52 of the mixed flow nozzle 5 is positioned above the partition plate 1 and is higher than the second input port 53, water below the partition plate 1 flows into the first input port 51 and then is discharged to the upper side of the partition plate 1, and the medicine above the partition plate 1 and the seed crystal added into the tank body 6 flow into the second input port 53 and then are vertically sprayed upwards after being mixed with the water.
The utility model provides a water and medicine distribution structure for softening water of an induced crystallization granulation fluidized bed, compared with the prior art, the water and medicine distribution structure for softening water of the induced crystallization granulation fluidized bed comprises a plurality of mixed flow nozzles 5 arranged on a partition plate 1, a water distribution pipeline 2 conveys water to the lower part of the partition plate 1, a medicine distribution pipeline 3 conveys medicines to a plurality of medicine distributors 4 through a medicine distribution branch pipe 7, the medicine distributors 4 and the mixed flow nozzles 5 are alternately arranged on the partition plate 1 in a penetrating way, the medicines output by the medicine distributors 4 and the water below the partition plate 1 flow in from an input port 51 of the mixed flow nozzles 5, crystal seeds added to a crystal seed pipe 8 flow in from a second input port 53, are sprayed out from an output port 52 in a vertical upward direction, then sink to the bottom of a tank along the tank wall from the vertical direction outside of a water distribution area, and then enter the second input port 53 of the mixed flow nozzles 5 again, so that liquid and particles form circulating flow in a tank body 6, with the effect of increasing crystallization granulation fluidization and water treatment, realize that water distribution structure and cloth medicine structural design are reasonable, improve the medicament and mix the degree of consistency, improve crystalline particles growth rate and efficiency, reduce the equipment fault rate.
The supreme water distribution district, cloth medicine district, granulation district and the clear water district that is formed with in proper order is followed down in jar body 6, and baffle 1 separates water distribution district and granulation district (cloth medicine district), and the water distribution position is in baffle 1 below.
The circulation flow rate of the mixed flow nozzle 5 is increased by 4: 1, effectively preventing precipitation and realizing uniform mixing of the solution (liquid) and the particles. The mixed flow nozzle 5 is designed by adopting reasonable geometric surface parameters according to the Berboulli jet flow gravitation principle, and forms a complete liquid jet stirring system together with a pump and a pipeline. During operation, liquid enters the mixed flow nozzle 5 under the action of pump pressure and reaches high-speed movement, a low-pressure area is formed around the guide opening through fluid momentum exchange, and due to the fact that the pressure difference of the area and the liquid momentum act on the liquid and particles to be attracted, the high-speed working jet flow and the fluid to be attracted jointly form a jet flow with the ratio of 1: 4, the fluid input enters the mixing diffusion section to be sprayed out, so that the air-free mixing and stirring of the solution are achieved, strong convection circulation is formed, the circulating turbulent motion is strengthened, the solution mixing effect is improved, the crystal growth is promoted, and the crystallization efficiency is improved. Meanwhile, the high circulation rate of the EDUCTOR can effectively keep the components of the solution uniform and active, the solution has uniform temperature and pH value, and the liquid, the seed crystal particles and other chemical components are uniformly dispersed, so that the induced crystallization granulation softening is ensured and improved.
In some embodiments, referring to fig. 1-4, a seeding tube 8 is disposed on the tank 6, the seeding tube 8 is connected to the tank 6 and has a height greater than that of the mixed flow nozzle 5, and the seeding fed into the tank 6 flows into the second input port 53 of the mixed flow nozzle 5 under the negative pressure formed around the mixed flow nozzle 5. After the seed crystals are mixed, the circular flow in the tank body 6 is realized, so that the seed crystals are added more uniformly.
In some embodiments, referring to fig. 1-4, the medicine distributor 4 includes a medicine distributing tube 41 penetrating through the partition board 1, a lower end of the medicine distributing tube 41 is communicated with the medicine distributing branch tube 7, a plurality of nozzles 42 are uniformly distributed on a side portion of the medicine distributing tube 41 near an upper end along a circumferential direction, the plurality of nozzles 42 can spray the medicine in the medicine distributing tube 41, an opening direction of the nozzles 42 faces an oblique lower direction, and the sprayed medicine can flow into the second input port 53 of the mixed flow nozzle 5.
In the present embodiment, the advantage of the nozzle 42 having a spraying direction directed obliquely downward is that: firstly, the medicament can enter the second input port 53 of the mixed flow nozzle 5 conveniently, and secondly, the blockage of the nozzle 42 caused by the seed crystal particles can be prevented, and the uniform administration to the tank body 6 can be realized conveniently.
Specifically, 6 bottoms of jar body are the back taper, and the bottom intercommunication has water distribution pipeline 2, and the lateral part intercommunication has medicine distribution pipeline 3, through the mixed flow nozzle 5 that sets up, makes medicament, water and the mixed back blowout of seed crystal three simultaneously, compares in prior art's advantage more obvious. The arrows in fig. 2 indicate the direction of flow of the solution particles or material.
In some embodiments, referring to fig. 1-4, the number of the nozzles 42 is three and is uniformly distributed along the circumferential direction, the included angles between the three nozzles 42 are 120 °, and the aperture of the nozzle 42 is 1-2 mm.
Because the mixed flow nozzle 5 and the medicine distributor 4 are arranged alternately, namely both sides of the mixed flow nozzle 5 are the medicine distributor 4, the medicines output from the two nozzles 42 can flow into the mixed flow nozzles 5 on both sides of the medicine distributor 4 simultaneously, so that the mixed flow efficiency of the mixed flow nozzle 5 to the medicines, water and crystal seeds can be improved. The structure or the style of the medicine distributor 4 is various, and the present embodiment is not limited, and is within the protection scope of the present invention.
In some embodiments, referring to fig. 1-4, the output port 52 of the mixing nozzle 5 is flared, the output water, the pharmaceutical agent and the seed particles flow vertically upward, and a vertically upward water flow thrust is generated in the output direction to push the liquid and particles in the granulation zone in the tank 6 to flow upward, and after rising to a certain height, the liquid and particles fall down along the low-pressure zone of the tank wall to the bottom of the reaction zone, and are sucked into the second input port 53 of the mixing nozzle 5 to circulate and flow to form a fluidized state, so as to stir the liquid in the tank 6, and form a low-pressure zone at the second input port 53 of the mixing nozzle 5, and the liquid and particles circulate and flow in the tank 6. The mixed flow nozzle 5 strengthens the circulating turbulent flow movement, provides the mixing and stirring effect of the solution (mixture or mixed solution), promotes the uniformity of the solution and improves the crystallization efficiency. The mixing uniformity of the added medicament and water is ensured, and the medicament dosage is saved.
The principle of the implementation of the embodiment is as follows: due to the special structural characteristics of the mixed flow nozzle 5, the thrust of water flow in the vertical direction of the mixed flow nozzle 5 close to the center of the tank body is larger along with the expansion of the cross section of the upper part, and the lifting thrust of the mixed flow nozzle 5 around the tank body close to the wall of the tank body is smaller. The upward lifting force is gradually reduced in the ascending process of the particles in the central area due to the influence of liquid resistance, when the particles reach a certain height and enter the separation area 13, the upward lifting force and gravity are balanced, the particles are gathered and suspended in the liquid in the tank and are diffused to the periphery, the flow velocity close to the tank wall is low, the upward water flow driving force is smaller than the particle gravity, the particles diffused to the periphery of the tank wall slide down to the bottom of the tank body, as the water flow driving force at the bottom is gradually increased, a part of the particles obtain the upward lifting force to flow upwards again, the rest of the particles slide down to enter the input port of the mixed flow nozzle 5 to be sucked by the negative pressure and flow upwards again, and a circulating fluidized state is formed repeatedly.
In some embodiments, referring to fig. 1-4, the partition board 1 is divided into a mixing reaction zone 11, a fluidizing zone 12 and a separating zone 13 from bottom to top along the height direction, and the output port 52 of the mixed flow nozzle 5 and the seeding tube 8 are located in the mixing reaction zone 11. The seed crystal circularly flows among the mixed reaction zone 11, the fluidizing zone 12, the separation zone 13 and the clear water zone at the upper part of the tank body 6, and certain chemical agents (such as sodium hydroxide and sodium carbonate) are added into the raw water to balance the carbonic acid in the water to the production of CO4 2-Is moved in the waterCO of3 2-Ion Ca2+The ions are crystallized and separated out on the surface of the crystal by taking the seed crystal as the core, and finally CaCO is formed3Crystal grains, thereby achieving the purpose of removing the hardness in water. The seed adding pipe 8 can also be a particle discharging pipe, and has two functions of adding seed crystals and discharging particles, but the seed adding pipe cannot be operated simultaneously in actual operation and can be operated alternately.
CaCO in the tank body 63The thrust of the crystal particles is gradually reduced in the upward water flow pushing process, the crystal particles are suspended in the liquid in the middle of the tank body 6 when the gravity of the crystal particles gradually reaches balance, the crystal particles are gradually gathered and diffused from the center to the periphery, then the crystal particles are settled from the tank wall to the bottom, the upward floating force close to the bottom is gradually increased along with the variable cross section structure of the lower conical structure in the downward flowing process of the particles, after the upward buoyancy is larger than the downward settling force of the crystal particles, the crystal particles are pushed to the upper part by the water flow again to be in contact reaction with raw water to produce new crystal precipitation, the particles settled to the bottom partition plate 1 are sucked by the nozzle again to be in reaction crystallization, the crystal particles gradually increase in cycles, and finally the larger crystal particles are discharged from the particle discharge pipe.
In some embodiments, referring to fig. 1-4, a non-return structure is disposed at the first input port 51 of the mixed flow nozzle 5, and the non-return structure is used to prevent particles in the tank 6 from entering the first input port 51 and flowing into the lower portion of the partition board 1 during shutdown. The non-return structure is similar to a check valve, a one-way valve, a filter and the like, and has the function of preventing the seed crystal particles from flowing into the mixed flow nozzle 5 and further flowing into the lower part of the partition plate 1 to block the water distribution pipeline 2, and enabling the medicament, the water and the like to enter the mixed flow nozzle 5.
In some embodiments, referring to fig. 1-4, the tank 6 is provided with an observation mirror 9 and an inspection manhole 10 from bottom to top, the three sampling pipes 11 are arranged at the side of the tank 6, and an anti-scaling coating is formed on the inner wall of the tank 6. The inside operation condition of the tank body 6 can be observed outside the tank body 6 by arranging the observation sight glass 9, and the maintenance man hole 10 is arranged, so that the maintenance man can pass through and enter the tank body 6, and the maintenance operation can be implemented. The upper end of the tank body 6 is communicated with a water outlet pipeline 12.
The utility model provides a water and medicine distribution structure for softening water of an induced crystallization granulation fluidized bed, which is characterized in that a high-efficiency mixed flow jet stirring technology (mixed flow nozzle 5) utilizes the pressure of raw water to carry out fluid momentum exchange around the mixed flow nozzle 5, a low-pressure area is formed around a guide port, and because the pressure difference and the liquid momentum of the area act on the liquid and the particles to be sucked, the high-speed working jet flow, the liquid and the particles to be sucked jointly form a flow distribution structure with the following flow distribution structure in the ratio of 1: 4 the fluid input enters the mixing diffusion section to be sprayed out, after reaching a certain height, the fluid slides down to the bottom along the inner side of the tank body, because of the inverted cone structure, the lifting force on the lower part is gradually increased, a part of particles are pushed upwards again by the liquid, a part of particles are sucked together with the added medicament again by the negative pressure port of the mixed flow nozzle and are sprayed upwards, and the fluid circularly flows, so that the unpowered mixing and stirring of the solution are achieved, the added liquid medicament can be dispersed uniformly with high circulation rate, the solution has uniform crystallization reaction, the quality and the efficiency of crystallization softening are ensured and improved, and the quality of outlet water is effectively improved. The stable and controllable solid-liquid separation interface prevents the crystal inducing particles from leaking along with the effluent at the initial stage, so that the effluent is stable.
The structure after the design can stably control a solid-liquid separation interface, increase the circulation speed of crystal particles and further improve the crystallization efficiency. The operation effect shows that the size of the discharged particles of the circulating granulation fluidized bed can reach 4-5mm, the discharge period is greatly prolonged, the crystallization efficiency is further improved, and the seed crystal adding amount is greatly saved.
Different medicaments can be added according to water quality with different hardness or different ions (such as fluoride ions, phosphorus and silicon), and different medicament distribution modes are adopted, so that the method is simple and flexible.
The utility model has advanced integral structure, compact connection of all functional units, small occupied area, convenient operation and low operating cost, can remove 95 percent of calcium carbonate hardness in water, and can ensure that the purity of the crystallized calcium carbonate can reach 98 percent. And can synchronously and efficiently remove various ions in the water. The method has the main application points of pretreatment of circulating water make-up water, pretreatment of circulating water sewage and by-pass flow treatment of a circulating water system. The treated water quality can achieve the purposes of improving the concentration ratio of the circulating water and reducing the water supplement amount and the sewage discharge amount of the circulating water, and provides an important technical means for realizing zero emission of enterprises; the system can be used as a concentrated water, machine set sewage and regeneration wastewater advanced treatment system for reverse osmosis system to remove hardness, and can be used in the fields of softening high-hardness municipal drinking water and the like.
The advantages of the utility model when applied to the existing fluidized bed or tank 6 are:
1) the ascending load of a high-load and large-flow crystallization granulation fluidized bed reactor can reach 60m/h-100m/h, and the water treatment amount of a single device with the diameter of 2000mm can reach 300m 3/h.
2) No by-product and zero emission;
the crystallization granulation fluidized bed reactor does not generate wastewater, waste liquid and sludge, the particle size of the only generated crystallization calcium carbonate particles is 3mm-5mm, the purity of the calcium carbonate is more than 98 percent, and the crystallization calcium carbonate can be recycled in process systems such as boiler flue gas desulfurization and the like.
3) The removal rate is high, and the effluent is stable;
the crystallization granulation fluidized bed reactor can stabilize a solid-liquid interface, enable seed crystal particles to flow in a suspending manner, prevent the loss of fine seed crystals along with effluent, has high crystallization efficiency and good particle uniformity, saves the seed crystals and prolongs the particle discharge period. For Ca in water2+The highest removal rate can reach more than 90 percent, the total hardness removal rate can reach 70 to 80 percent, and the softening effect is stable.
4) The water quality application field and the application range are wide;
the crystallization granulation fluidized bed reactor can be widely applied to softening treatment of different water qualities such as municipal drinking water, industrial circulating water replenishing, urban reclaimed water and industrial wastewater recycling, near zero discharge of wastewater and the like.
5) The equipment is characterized in that: the water treatment amount is large, the occupied area of equipment is small, the operation cost is low, the maintenance, operation and management are simple, no waste slag or waste liquid is generated, and the automatic operation and operation can be realized.
6) Popularization and application: different agents can be added according to different hardness water quality or different ions for crystallization removal, such as underground high fluorine water defluorination, copper ion, lead ion and other heavy metal ion removal of copper-containing wastewater, silicon removal in water, phosphorus removal in anaerobic supernatant of urban sewage treatment plants and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a water distribution medicine distribution structure of induced crystallization granulation fluidized bed softened water treatment which characterized in that includes:
the partition plate is arranged in the tank body, is close to the bottom of the tank body, and is used for dividing the tank body into an upper area and a lower area;
the output end of the water distribution pipeline penetrates through the bottom of the tank body and is used for conveying water into a space below the partition plate in the tank body;
the output end of the medicine distributing pipeline penetrates through the side part of the tank body and is used for conveying the medicine into the tank body, a medicine distributing branch pipe is arranged below the partition plate in the tank body and is communicated with the medicine distributing pipeline;
the plurality of medicine distributors are arranged on the partition plate in a penetrating manner at equal intervals and are communicated with the medicine distribution branch pipes, and the output ends of the medicine distributors are positioned above the partition plate;
a plurality of mixed flow nozzles, equipartition interval run through locate on the baffle, with the alternative setting of medicine distributor has first input port and second input port, first input port is located the baffle below the second input port is located the baffle top, mixed flow nozzle delivery outlet is located baffle top and its highly be higher than the second input port height, the rivers of baffle below flow into back row in the first input port to the baffle top, the medicament of baffle top with throw extremely seed crystal in the jar all flows in behind the second input port and with the vertical upwards eruption behind the water mixed flow.
2. The structure of claim 1, wherein a seed-adding pipe is disposed on the tank, the seed-adding pipe is connected to the tank and has a height greater than that of the mixing nozzle, and the seed added to the tank flows into the second inlet of the mixing nozzle under the negative pressure formed around the mixing nozzle.
3. The water and medicine distribution structure for the softening water treatment of the crystallization-inducing granulation fluidized bed according to claim 1, wherein the medicine distributor comprises a medicine distribution pipe penetrating through the partition plate, the lower end of the medicine distribution pipe is communicated with the medicine distribution branch pipe, a plurality of nozzles are uniformly distributed on the side part of the medicine distribution pipe close to the upper end along the circumferential direction, the plurality of nozzles can eject the medicine in the medicine distribution pipe, the opening direction of the nozzles faces to the inclined lower direction, and the ejected medicine can flow into the second input port of the mixed flow nozzle.
4. The water and medicine distribution structure for the softening water treatment of the crystallization-inducing granulation fluidized bed according to claim 3, wherein the nozzles are uniformly distributed along the circumferential direction, and the aperture of the nozzles is 1-2 mm.
5. The water and medicine distributing structure for softening water in an induced crystallization granulation fluidized bed according to claim 1, wherein the output port of the mixed flow nozzle is in a trumpet shape, the output water, the medicine and the seed crystal particles vertically flow upwards, and a vertically upward water flow thrust is generated in the output direction, so that the liquid and the particles in the granulation zone in the tank body are pushed to flow upwards, the liquid and the particles rise to a certain height, then fall to the bottom of the reaction zone along the low-pressure zone of the tank wall, are sucked to the second input port of the mixed flow nozzle, and circularly flow to form a fluidized state, so that the liquid in the tank body is stirred, a low-pressure zone is formed at the second input port of the mixed flow nozzle, and the liquid and the particles circularly flow in the tank body.
6. The water and medicine distribution structure for the softening water treatment of the crystallization-inducing granulation fluidized bed as claimed in claim 2, wherein the upper part of the partition board along the height direction is divided into a mixing reaction zone, a fluidization zone and a separation zone from bottom to top in sequence, and the output port of the mixed flow nozzle and the seeding tube are both located in the mixing reaction zone.
7. The water and medicine distributing structure for the softening water treatment of the induced crystallization granulation fluidized bed according to claim 1, wherein a non-return structure is arranged at the first input port of the mixed flow nozzle, and the non-return structure is used for preventing the particles in the tank body from entering the first input port and further flowing into the lower part of the partition plate during the shutdown.
8. The water and chemical distributing structure for the softening water treatment of the induced crystallization granulation fluidized bed according to claim 1, wherein the tank body is provided with an observation mirror, an inspection manhole and a sampling port, and the inner wall of the tank body is provided with an anti-scaling coating.
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| CN202220827898.XU CN217025512U (en) | 2022-04-11 | 2022-04-11 | Water distribution and medicine distribution structure for softening water treatment of induced crystallization granulation fluidized bed |
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Effective date of registration: 20231008 Address after: Room 608, 6th Floor, Tianzhou Business Plaza, No. 19 Jinshi Street, Chang'an District, Shijiazhuang City, Hebei Province, 050000 Patentee after: Hebei Qinghe Jiayuan Environmental Technology Co.,Ltd. Address before: 050031 311, building 5, hanxuan business, No. 389, jianhuabei street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI SHANUO ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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