CN111943319A

CN111943319A - Ion exchange equipment for sewage treatment

Info

Publication number: CN111943319A
Application number: CN202010980900.2A
Authority: CN
Inventors: 李茹茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-11-17

Abstract

The invention relates to the technical field of sewage treatment, and discloses ion exchange equipment for sewage treatment, which comprises an outer tank body and an inner tank body, wherein the inner tank body is arranged in the outer tank body, a space is reserved between the outer tank body and the inner tank body, the inner wall of the inner tank body is connected with a pressing plate in a sliding manner, the pressing plate divides the inner cavity of the inner tank body into an active resin chamber and a saturated resin chamber, the lower end of the inner cavity of the inner tank body is fixedly provided with a fixing plate, and the top of the pressing plate is fixedly sleeved with a main liquid inlet pipe. According to the invention, the volume difference between the active resin chamber volume and the resin layer is kept in a stable range by the up-and-down movement of the pressing plate, the density reduction of the resin layer caused by the volume reduction after the resin is saturated is avoided, the density of the resin layer is kept in a stable range by the movement of the pressing plate and the blocking effect on the resin layer, the reduction of the retention force of the resin layer on liquid flow due to the overlarge density reduction is prevented, and the problem of the reduction of the ion exchange rate in the continuous reaction process is solved.

Description

Ion exchange equipment for sewage treatment

Technical Field

The invention relates to the technical field of sewage treatment, in particular to ion exchange equipment for sewage treatment.

Background

The ion exchange treatment method of waste water is a method for removing harmful ions in waste water by means of exchange between exchange ions in ion exchanger and ions in waste water, and the existing ion exchange equipment mainly has

When the ion exchange reaction is continuously carried out, part of resin particles in the container are gradually saturated, the volume of the saturated resin particles is reduced compared with that of normal active resin particles, the density of a resin layer consisting of the resin particles is relatively reduced, when the density of the resin layer is reduced too much, the retention force of the resin on waste liquid is reduced, the flowing speed of the liquid in the resin layer is high, the amount of the waste liquid passing through the resin layer without the ion exchange is increased, and the treatment effect on the waste liquid is reduced; in addition, saturated resin particles do not have the function of ion exchange, but are repeatedly washed by waste liquid, so that the damage of a network structure in the resin molecules is accelerated, the loss of the resin is increased, and the cost of waste liquid treatment is increased.

Disclosure of Invention

Aiming at the defects of the prior ion exchange equipment in the background art in the using process, the invention provides the ion exchange equipment for sewage treatment, which has the advantages of compressing the space of a resin layer and screening out saturated resin particles, and solves the problems of reduced resin layer density and reduced strength caused by repeated scouring of saturated resin in the background art.

The invention provides the following technical scheme: the utility model provides an ion exchange equipment for sewage treatment, including the outer jar of body and the inner tank body, the inner tank body sets up and leaves the space between the outer jar of body and the inner tank body in the inside of the outer jar of body, the inner wall sliding connection of the inner tank body has the clamp plate, active resin room and saturated resin room are cut apart into with the inner chamber of the inner tank body to the clamp plate, the lower extreme fixed mounting of inner tank body inner chamber has the fixed plate, the top of clamp plate is fixed to have cup jointed the feed liquor person in charge, the inside fixed mounting of clamp plate has a branch liquid siphunculus, the sieve way has been seted up on the clamp plate, the fixed catheter that has cup jointed in top of branch liquid siphunculus, the catheter runs through the inner wall of inner tank.

Preferably, divide the liquid siphunculus to include that side pipe, annular divide pipe and go up and divide the liquid pipe, and the one end of side pipe is responsible for with the feed liquor and cup joints and radially distributes along the clamp plate, and the annular divides the pipe to be annular and the intercommunication in the below of side pipe, goes up and divides the bottom surface that the vertical downward run through the clamp plate of liquid pipe and evenly communicate in the below that the annular divides the pipe.

Preferably, symmetrical pawls are arranged on the outer wall of the pressing plate, symmetrical inner grooves are formed in the inner wall of the inner tank body, a ratchet plate is connected to the inner wall of each inner groove in a sliding mode, a distance is arranged between every two adjacent ratchets on the ratchet plate, and the pawls are clamped with the ratchets on the ratchet plate.

Preferably, the outer wall of the ratchet plate is fixedly connected with a fixed magnet, and the outer wall of the outer tank body is provided with an electromagnet corresponding to the fixed magnet in position.

Preferably, a lower liquid distribution pipe positioned in the fixed plate is fixedly sleeved on the liquid guide pipe, the lower liquid distribution pipe penetrates through the top of the fixed plate, and the lower liquid distribution pipe and the upper liquid distribution pipe are arranged in a staggered mode along the radial direction of the inner tank body.

Preferably, the top of fixed plate is equipped with the baffle, and the baffle is the annular and the baffle is located between two adjacent rings of lower liquid distribution pipes.

Preferably, the liquid inlet main pipe and the liquid guide pipe are both telescopic at the part between the pressing plate and the fixing plate, a winder at the through part of the liquid guide pipe is arranged at the inner wall of the inner tank body, the winder comprises a pressing wheel and a coil spring, the pressing wheel is in contact with the outer wall of the liquid guide pipe and rotates along with the movement of the liquid guide pipe, and two ends of the coil spring are respectively connected to the rotating shaft of the pressing wheel and the inner wall of the inner tank body.

The invention has the following beneficial effects:

1. according to the invention, the volume difference between the active resin chamber volume and the resin layer is kept in a stable range by the up-and-down movement of the pressing plate, the density reduction of the resin layer caused by the volume reduction after the resin is saturated is avoided, the density of the resin layer is kept in a stable range by the movement of the pressing plate and the blocking effect on the resin layer, the reduction of the retention force of the resin layer on liquid flow due to the overlarge density reduction is prevented, and the problem of the reduction of the ion exchange rate in the continuous reaction process is solved.

2. According to the invention, through the screening effect of the sieve channels on the pressing plate, the saturated resin particles can enter the saturated resin chamber from the active resin chamber through the sieve channels, and the damage of the network structure of resin molecules caused by repeated liquid flow impact of the saturated resin particles in the active resin chamber is avoided, so that the purpose of reducing resin loss is achieved, and the cost of the ion exchange reaction of waste liquid treatment is reduced.

3 the liquid separating through pipe and the liquid guiding pipe are connected by the pressure plate, so that the waste liquid entering the inner tank body automatically flows out of the upper liquid separating pipe and the lower liquid separating pipe, and the liquid flow jetted by the lower liquid separating pipe plays a role in stirring the resin particles, so that the mass transfer area of the resin particles in the active resin chamber is enlarged, and the utilization rate of the resin is improved; in addition, the liquid flow at the upper liquid separating pipe and the lower liquid separating pipe has driving force on the resin particles, so that the resin and the liquid flow achieve the effect of reverse adsorption, and the ion exchange efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the platen of the present invention;

FIG. 3 is a top view of the platen of the present invention;

FIG. 4 is a schematic top view of a fixing plate according to the present invention;

fig. 5 is a top view of a fixation plate of the present invention.

In the figure: 1. an outer tank body; 2. an inner tank body; 201. an active resin chamber; 202. a saturated resin chamber; 203. an inner tank; 3. pressing a plate; 4. a fixing plate; 5. a liquid inlet main pipe; 6. liquid separation through pipe; 601. a side tube; 602. annular pipe distribution; 603. an upper liquid separating pipe; 7. a catheter; 8. screening; 9. a lower liquid separating pipe; 10. a liquid outlet channel; 11. a partition plate; 12. a ratchet plate; 13. a pawl; 14. fixing a magnet; 15. an electromagnet; 16. and (7) a winder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an ion exchange apparatus for sewage treatment comprises an outer tank 1 and an inner tank 2, wherein the inner tank 2 is disposed inside the outer tank 1, a space is left between the outer tank 1 and the inner tank 2, a pressure plate 3 is slidably connected to an inner wall of the inner tank 2, the pressure plate 3 divides an inner cavity of the inner tank 2 into an active resin chamber 201 and a saturated resin chamber 202, in an initial state, resin particles are located in the active resin chamber 201, the pressure plate 3 is located at the topmost end of the inner tank 2, no resin particles are located in the saturated resin chamber 202, the pressure plate 3 is supported by the resin particles and is maintained at a certain height, as an ion exchange reaction proceeds, a part of the resin particles gradually saturate, the volume gradually decreases, and the supporting force for the pressure plate 3 is insufficient, so that the pressure plate 3 gradually moves downward under the impact of waste liquid, a fixing plate 4 is fixedly installed at the lower end of the inner cavity of, the top of the pressure plate 3 is fixedly sleeved with a liquid inlet main pipe 5, the liquid inlet main pipe 5 is respectively fixed on the outer walls of the pressure plate 3 and the outer tank body 1, one end of the liquid inlet main pipe 5, which is positioned between the pressure plate 3 and the outer tank body 1, can be extended and contracted, therefore, when the impact force and the pressure of waste liquid entering the pressure plate 3 through the liquid inlet main pipe 5 are greater than the upward force applied to the pressure plate 3, the pressure plate 3 is unstable and can slide upwards along the outer wall of the inner tank body 2, the flexibility of the liquid inlet main pipe 5 is used for reducing the fixing effect of the liquid inlet main pipe 5 on the pressure plate 3, so that the waste liquid can impact the pressure plate 3, a liquid separating through pipe 6 is fixedly installed inside the pressure plate 3, a sieve channel 8 is arranged on the pressure plate 3, the liquid separating through pipe 6 comprises a side pipe 601, an annular branch pipe 602 and an upper liquid separating pipe 603, one end of the side pipe 601 is sleeved with the liquid inlet, the number of the annular branch pipes 602 is multiple and different in diameter concentrically, the upper branch pipes 603 vertically penetrate through the bottom surface of the pressing plate 3 downwards and are evenly communicated below the annular branch pipes 602, so that the upper branch pipes 603 can be ensured to be evenly distributed, the position of the sieve channel 8 is reserved on the pressing plate 3, the aperture of the sieve channel 8 is matched with the size of the saturated resin particles, the resin particles with reduced volume after saturation can enter the saturated resin chamber 202 from the active resin chamber 201 through the sieve channel 8, the resin particles which are not saturated or have a volume larger than the aperture of the sieve channel 8 are positioned in the active resin chamber 201, the top of the branch pipe 6 is fixedly sleeved with the liquid guide pipe 7, the liquid guide pipe 7 penetrates through the inner wall at the upper end of the inner tank body 2, one end of the liquid guide pipe 7, which is far away from the liquid separation 6, extends from the outer side of the inner tank body 2 and is fixedly sleeved in the fixing plate 4, the lower branch pipe, the lower liquid distributing pipe 9 penetrates through the top of the fixing plate 4, the lower liquid distributing pipe 9 and the upper liquid distributing pipe 603 are arranged in a staggered mode, the liquid flow velocities in the upper liquid distributing pipe 603 and the lower liquid distributing pipe 9 are different, the positions are adjacent and are not opposite, two liquid flows in opposite directions can form convolution, resin particles in the active resin chamber 201 are driven to overturn, the two liquid flows can form convolution in opposite rotating directions, the resin particles can overturn up and down back and forth, the resin particles are not single from bottom to top or from top to bottom, contact between the resin particles and waste liquid is further increased, the diffusion speed of the liquid is increased, the overall speed of ion exchange is improved, the liquid outlet channel 10 is formed in the fixing plate 4, and treated liquid after resin exchange in the inner cavity of the active resin chamber 201 flows out of the liquid outlet channel 10 and flows out through an outlet in the lower end of the outer tank body 1; in this scheme, there are two from the waste liquid flow direction that 5 entering in this equipment of feed liquor main pipe: firstly, the liquid enters a side pipe 601 from a liquid inlet main pipe 5, enters an annular branch pipe 602 from the side pipe 601, enters an active resin chamber 201 from an upper branch pipe 603, and is sprayed out from top to bottom in the active resin chamber 201; secondly, the liquid enters the side pipe 601 from the main liquid inlet pipe 5, enters the liquid guide pipe 7 from the annular branch pipe 602, enters the lower branch pipe 9, and is ejected from the bottom to the top in the active resin chamber 201.

Symmetrical pawls 13 are arranged on the outer wall of the pressing plate 3, symmetrical inner grooves 203 are formed in the inner wall of the inner tank body 2, ratchet plates 12 are connected to the inner wall of the inner grooves 203 in a sliding mode, a distance is reserved between every two adjacent ratchets on the ratchet plates 12, the pawls 13 are clamped with the ratchets on the ratchet plates 12, the ratchet plates 12 fix the pressing plate 3, and the pressing plate 3 is prevented from moving upwards for a large distance due to impact of water flow after moving downwards, so that the pressing effect of the pressing plate 3 on resin particles is guaranteed, the density reduction of the resin particles due to volume reduction after the resin particles are saturated is avoided, the retention effect on waste liquid is reduced, and the problem that the waste liquid flows out after not completely reacting is solved; in addition, the interval of two adjacent ratchets can make clamp plate 3 reciprocate in this interval by a small margin, under the prerequisite of guaranteeing whole to the effect of compressing tightly of resin grain, can leave for the certain space of resin grain for the resin grain can the upset activity, can make during the small resin grain gets into active resin room 201 from sieve channel 8, and make the resin grain can overturn under the effect of liquid stream in last liquid separation pipe 603 and lower liquid separation pipe 9, play the even effect of stirring.

According to the second path of the flow of the waste liquid, the waste liquid from the lower liquid-dividing pipe 9 will have an impact effect on the waste liquid from the upper liquid-dividing pipe 603, when the impact force is too large or the distance between the pressure plate 3 and the fixing plate 4 is small, the impact force of the waste liquid in the lower liquid-dividing pipe 9 may cause the pressure plate 3 to impact upwards, so that the energy of the liquid flowing out from the lower liquid-dividing pipe 9 needs to be controlled, the total energy of the liquid entering the main liquid pipe 5 can be reduced, and the waste liquid is generally pumped by the pump body, so that when the pressure plate 3 is located at the lower limit position, the impact force of the liquid in the lower liquid-dividing pipe 9 will not cause a large impact force on the pressure plate 3, mainly for reducing the amount and speed of the liquid entering the saturated resin chamber 202 through the sieve channel 8, thereby better reducing the impact of the waste liquid on the saturated resin, thereby minimizing the damage of the strength of the resin particles and reducing the loss of the resin particles.

The outer wall of the ratchet plate 12 is fixedly connected with a fixed magnet 14, the outer wall of the outer tank body 1 is provided with an electromagnet 15 corresponding to the position of the fixed magnet 14, the direction of acting force of the electromagnet 15 on the fixed magnet 14 can be changed by changing the direction of current in the electromagnet 15, in the ion exchange process, the electromagnet 15 repels the fixed magnet 14, so that the ratchet plate 12 is close to the pawl 13, the purpose of preventing the pressing plate 3 from moving up and down greatly is achieved, when the ion exchange is finished and resin particles are backwashed and regenerated, the pressing plate 3 needs to be moved to the upper part of the inner tank body 2, the operation method at the moment is that the current in the electromagnet 15 is changed, so that the electromagnet 15 attracts the fixed magnet 14, the ratchet on the ratchet plate 12 is far away from the pawl 13, backwash water is introduced from the liquid inlet main pipe 5, and the water flow enables the resin particles with smaller volume to gradually move to the lower part, because the ratchet plate 12 does not block the pressure plate 3, the pressure plate 3 gradually rises to the upper limit position, and at the moment, all the resin particles in the saturated resin chamber 202 reenter the active resin chamber 201, and then the reverse adsorption liquid is introduced, so that the resin particles are regenerated.

The top of fixed plate 4 is equipped with baffle 11, baffle 11 is annular and baffle 11 is located under adjacent two rings and divides between the liquid pipe 9, baffle 11 is used for separating lower branch liquid pipe 9 and drain passage 10, avoid dividing the waste liquid stream that liquid pipe 9 goes out down and directly flowing out from drain passage 10 and not spraying from supreme down along the inside of active resin room 201, consequently, separate through baffle 11, make the liquid stream of lower branch liquid pipe 9 department upwards spray the same distance with baffle 11 height at least, in addition, because the rivers of drain passage 10 department flow out, form the negative pressure in drain passage 10 department, according to the siphon principle, the liquid stream of lower branch liquid pipe 9 department also can receive upper and lower appeal, thereby increase the kinetic energy of liquid stream, improve liquid jet's distance.

The liquid inlet main pipe 5 and the liquid guide pipe 7 are positioned between the pressing plate 3 and the fixing plate 4 and can stretch out and draw back, the inner wall of the inner tank body 2 is provided with a coiler 16 positioned at the through part of the liquid guide pipe 7, the coiler 16 comprises a pressing wheel and a coil spring, the pressing wheel is contacted with the outer wall of the liquid guide pipe 7 and rotates along with the movement of the liquid guide pipe 7, the two ends of the coil spring are respectively connected on the rotating shaft of the pressing wheel and the inner wall of the inner tank body 2, the length of the liquid guide pipe 7 positioned in the inner cavity of the inner tank body 2 is longer and longer along with the downward, in order to ensure that, when the pressure plate 3 is moved upwards, the liquid guide tube 7 can be moved out of the inner cavity of the inner tank 2 instead of being bent in the active resin chamber 201, through the friction of the pressing wheel on the coiler 16 to the outer wall of the liquid guide pipe 7 and the coiling force of the coil spring, so that the liquid guide tube 7 can be extended and contracted to the outside of the inner tank 2 along with the up-and-down movement of the pressure plate 3.

In this scheme, the outer wall of the ratchet plate 12 is connected with the sealing material that the inner wall of the inner tank body 2 used and has ductility or elasticity, for example, folding anti-corrosion steel sheet, guarantee the leakproofness between the ratchet plate 12 and the inner tank body 2, divide the junction of liquid siphunculus 6 and ratchet plate 12 simultaneously and can set up the sealed pad of anticorrosion on dividing the outer wall of liquid siphunculus 6, the waste liquid volume of the clearance upward infiltration between the follow clamp plate 3 and the inner tank body 2 of minimizing, the hole that is used for catheter 7 removal that the inner tank body 2 is located 16 departments of winder also uses sealed pad to seal in addition, avoid having the inner chamber of liquid infiltration out the inner tank body 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an ion exchange equipment for sewage treatment, includes outer jar of body (1) and inner tank body (2), inner tank body (2) set up and leave the space, its characterized in that between the inside of outer jar of body (1) and inner tank body (2): inner wall sliding connection of the inner tank body (2) has clamp plate (3), active resin room (201) and saturated resin room (202) are cut apart into with the inner chamber of the inner tank body (2) in clamp plate (3), the lower extreme fixed mounting of the inner tank body (2) inner chamber has fixed plate (4), the top of clamp plate (3) is fixed to be cup jointed the feed liquor and is responsible for (5), the inside fixed mounting of clamp plate (3) has branch liquid siphunculus (6), sieve way (8) have been seted up on clamp plate (3), the top of dividing liquid siphunculus (6) is fixed to be cup jointed catheter (7), inner wall of the inner tank body (2) upper end is run through in catheter (7), the one end that branch liquid siphunculus (6) were kept away from in catheter (7) extends and fixed the inside of cup jointing at fixed plate (4) from the.

2. An ion exchange apparatus for wastewater treatment according to claim 1, wherein: divide liquid siphunculus (6) to include side pipe (601), annular and divide pipe (602) and go up and divide liquid pipe (603), and the one end of side pipe (601) is responsible for (5) with the feed liquor and cup joints and radially distributes along clamp plate (3), and annular divides pipe (602) to be the annular and communicate in the below of side pipe (601), goes up and divides the bottom surface that liquid pipe (603) is vertical to run through clamp plate (3) downwards and evenly communicates in the below of annular branch pipe (602).

3. An ion exchange apparatus for wastewater treatment according to claim 1, wherein: symmetrical pawls (13) are arranged on the outer wall of the pressing plate (3), symmetrical inner grooves (203) are formed in the inner wall of the inner tank body (2), a ratchet plate (12) is connected to the inner wall of each inner groove (203) in a sliding mode, a distance is arranged between every two adjacent ratchets in the ratchet plate (12), and the pawls (13) are clamped with the ratchets in the ratchet plate (12).

4. An ion exchange apparatus for wastewater treatment according to claim 3, wherein: the outer wall of the ratchet plate (12) is fixedly connected with a fixed magnet (14), and the outer wall of the outer tank body (1) is provided with an electromagnet (15) corresponding to the fixed magnet (14).

5. An ion exchange apparatus for wastewater treatment according to claim 2, wherein: a lower liquid distributing pipe (9) positioned in the fixing plate (4) is fixedly sleeved on the liquid guide pipe (7), the lower liquid distributing pipe (9) penetrates through the top of the fixing plate (4), and the lower liquid distributing pipe (9) and the upper liquid distributing pipe (603) are arranged along the radial direction of the inner tank body (2) in a staggered manner.

6. An ion exchange apparatus for wastewater treatment according to claim 1, wherein: the top of the fixed plate (4) is provided with a clapboard (11), the clapboard (11) is annular, and the clapboard (11) is positioned between two adjacent circles of lower liquid distributing pipes (9).

7. An ion exchange apparatus for wastewater treatment according to claim 1, wherein: the liquid inlet main pipe (5) and the liquid guide pipe (7) are positioned between the pressing plate (3) and the fixing plate (4) and can stretch out and draw back, a winding device (16) positioned at the through position of the liquid guide pipe (7) is arranged on the inner wall of the inner tank body (2), the winding device (16) comprises a pressing wheel and a coil spring, the pressing wheel is in contact with the outer wall of the liquid guide pipe (7) and rotates along with the movement of the liquid guide pipe (7), and two ends of the coil spring are respectively connected to the rotating shaft of the pressing wheel and the inner wall of the inner tank body (.