CN114288754A - Phosphoric acid purification device - Google Patents
Phosphoric acid purification device Download PDFInfo
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- CN114288754A CN114288754A CN202210059273.8A CN202210059273A CN114288754A CN 114288754 A CN114288754 A CN 114288754A CN 202210059273 A CN202210059273 A CN 202210059273A CN 114288754 A CN114288754 A CN 114288754A
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Abstract
The invention discloses a phosphoric acid purification device, and relates to the technical field of chemical equipment. The invention comprises a supporting platform which is horizontally arranged; a first treatment box and a second treatment box are fixed above the supporting platform in parallel; the first treatment box is internally provided with a stirring component and a filtering component from top to bottom; a sedimentation component is arranged in the second treatment box; the upper part of the second processing box is connected with the lower part of the first processing box through a conveying assembly. According to the invention, dilute phosphoric acid is fully mixed and filtered through the stirring assembly and the filtering assembly in the first treatment box, then is conveyed into the second treatment box through the conveying assembly, and is successively precipitated through the plurality of precipitation assemblies arranged side by side from top to bottom, so that the purification effect of phosphoric acid can be effectively improved, and the phosphoric acid purification device has a high market application value.
Description
Technical Field
The invention belongs to the technical field of chemical equipment, and particularly relates to a phosphoric acid purification device.
Background
The existing wet-process phosphoric acid purification production methods mainly comprise the following steps: the chemical precipitation method, the solvent extraction method, the crystallization method, the ion exchange method and the like generally react phosphate rock powder (slurry) with phosphoric acid, then liquid-solid separation is carried out on the reaction slurry to obtain wet-process diluted phosphoric acid, and finally the diluted phosphoric acid is purified to obtain the required phosphoric acid.
Chinese patent No. CN210973889U discloses a phosphoric acid purification apparatus, which can automatically complete a continuous purification process of phosphoric acid by multiple times of precipitation, and although it can purify phosphoric acid to a certain extent, since the feed inlets and discharge outlets of multiple precipitation zones are located at the upper part, it is difficult to make the solution at the upper part of the precipitation zone into a clear state, thereby reducing the purification effect of phosphoric acid; meanwhile, as the settling zone is not provided with a certain impurity removal device, impurities in the settling zone can be filled to the filter plate after long-time use, so that the purification effect on the phosphoric acid is further influenced. Therefore, a phosphoric acid purification apparatus is urgently studied in order to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems of poor purification effect and the like of the conventional phosphoric acid purification device proposed in the background art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a phosphoric acid purification device, which comprises a support table horizontally arranged; a first treatment box and a second treatment box are fixed above the supporting platform in parallel; the first treatment box is internally provided with a stirring component and a filtering component from top to bottom; a sedimentation component is arranged in the second treatment box; the upper part of the second processing box is connected with the lower part of the first processing box through a conveying assembly.
As a preferable technical scheme of the invention, the stirring assembly comprises a first driving motor which is vertically fixed on the top wall of the first treatment box; an output shaft of the first driving motor extends into the first treatment box and is coaxially fixed with a driving shaft; and a plurality of stirring blades are radially fixed on the outer wall of the driving shaft.
As a preferred technical scheme of the invention, the filtering component comprises a first filtering plate and a second filtering plate which are fixed in the first treatment box side by side from top to bottom; the lower ends of the filter holes of the second filter plate are coaxially connected with capillaries; the lower end of the capillary extends to the lower part of the first treatment box.
As a preferred technical scheme of the invention, the sedimentation assembly comprises a plurality of conveying hoppers which are fixed in the second treatment box side by side from top to bottom; a sedimentation box with an upper part of an open structure is fixed below the conveying hopper; the upper opening of the sedimentation box is of a trumpet-shaped structure; a plurality of conveying holes are uniformly distributed at an opening at the upper part of the sedimentation box; a conveying gap is formed between the side wall of the sedimentation box and the side wall of the second treatment box; a third filter plate is horizontally fixed in the settling box; a conveying pipe is vertically inserted into the third filter plate; the upper end of the conveying pipe is connected to the lower part of the conveying hopper.
As a preferred technical solution of the present invention, the conveying assembly includes a first conveying pipe; one end of the first conveying pipe is connected to the lower part of the first treatment box, and the other end of the first conveying pipe is connected to the upper part of the second treatment box; the connecting point between the first conveying pipe and the first treatment box is positioned below the second filter plate; the connecting point between the first conveying pipe and the second processing box is positioned above the conveying hopper.
As a preferred technical scheme of the invention, a plurality of settling boxes are internally provided with slag removal assemblies; the deslagging assembly is arranged below the third filter plate; the deslagging assembly is used for removing sediments in the sedimentation box.
As a preferred technical scheme of the invention, the deslagging assembly comprises a pair of guide posts which are arranged in the sedimentation box side by side; two ends of the guide column are respectively fixed on two opposite side walls of the precipitation box; a sliding sleeve is slidably sleeved on the guide post; the two sliding sleeves are connected through a slag suction pipe; a plurality of slag inlets are axially formed in the outer wall of the slag suction pipe; the slag suction pipe is connected with a second conveying pipe; one ends of the second conveying pipes extend to the outside of the second treatment tank in a penetrating way and are connected through a collecting pipe; one end of the collecting pipe is connected to a slag collecting box; the slag collecting box is fixed on the supporting platform; and a second delivery pump is arranged on the collecting pipe.
As a preferred technical scheme of the invention, a plurality of slag suction pipes are connected through a driving assembly; the driving assembly is used for driving the slag suction pipe to move in the sedimentation box; the driving assembly comprises a plurality of pairs of driving wheels which are respectively arranged on two opposite side walls of the second treatment box; a driving belt is lapped on the driving wheel; two ends of the driving belt respectively penetrate through the other opposite two side walls of the second treatment box and one opposite two side walls of the sedimentation box in sequence and are connected to the outer wall of the slag suction pipe along the axial direction of the guide column; fixed pulleys are arranged on two opposite sides of the driving wheel; the fixed pulley is arranged at the side cooling part of the second treatment box; the driving wheels positioned on the same side are connected through a vertically arranged transmission shaft; the transmission shaft is inserted on the support table in a rotating mode; a first belt wheel is horizontally fixed at the lower end of the transmission shaft; a second driving motor is vertically fixed between the two first pulleys; a second belt wheel is horizontally fixed on an output shaft of the second driving motor; the second belt wheel is in transmission connection with the two first belt wheels through a synchronous belt.
The invention has the following beneficial effects:
according to the invention, dilute phosphoric acid is fully mixed and filtered through the stirring assembly and the filtering assembly in the first treatment box, then is conveyed into the second treatment box through the conveying assembly, and is successively precipitated through the plurality of precipitation assemblies arranged side by side from top to bottom, so that the purification effect of phosphoric acid can be effectively improved, and the phosphoric acid purification device has a high market application value.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a phosphoric acid purification apparatus according to the present invention.
Fig. 2 is a front view of the structure of fig. 1.
FIG. 3 is a schematic view of the first treatment tank of the present invention.
Fig. 4 is a front view of the structure of fig. 3.
FIG. 5 is a schematic view of the first treatment tank of the present invention.
Fig. 6 is a front view of the structure of fig. 5.
Fig. 7 is a top view of the structure of fig. 5.
In the drawings, the components represented by the respective reference numerals are listed below:
1-support table, 2-first treatment tank, 3-second treatment tank, 4-stirring assembly, 5-filtration assembly, 6-sedimentation assembly, 7-conveying assembly, 8-deslagging assembly, 9-driving assembly, 401-first driving motor, 402-driving shaft, 403-stirring blade, 501-first filter plate, 502-second filter plate, 503-capillary tube, 601-conveying bucket, 602-sedimentation box, 603-third filter plate, 604-conveying pipe, 701-first conveying pipe, 702-first conveying pump, 801-guide column, 802-slide sleeve, 803-slag suction pipe, 804-second conveying pipe, 805-collection pipe, 806-slag collection tank, 807-second conveying pump, 901-driving wheel, 902-drive belt, 903-fixed pulley, 904-drive shaft, 905-first pulley, 906-second drive motor, 906-second pulley, 6021-conveying hole.
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.
The first embodiment is as follows:
referring to fig. 1-2, the present invention relates to a phosphoric acid purification apparatus, which comprises a support table 1 horizontally disposed; a first processing box 2 and a second processing box 3 are fixed above the supporting platform 1 in parallel; the first treatment box 2 is internally provided with a stirring component 4 and a filtering component 5 from top to bottom; the second treatment box 3 is internally provided with a precipitation assembly 6; the upper part of the second processing box 3 is connected with the lower part of the first processing box 2 through a conveying assembly 7. During the use, carry out intensive mixing and filtration to rare phosphoric acid through stirring subassembly 4 and filter assembly 5 in the first treatment case 2, recycle conveying assembly 7 and send to the second and handle 3 in to deposit the subassembly 6 to rare phosphoric acid one by one through a plurality of from last to setting up side by side down, can improve the purifying effect to phosphoric acid effectively.
The second embodiment is as follows:
the embodiment is further optimized on the basis of the first specific embodiment, which is specifically as follows:
as shown in fig. 3 to 4, the agitation assembly 4 includes a first driving motor 401 vertically fixed to the top wall of the first treatment tank 2; an output shaft of the first driving motor 401 extends to the inside of the first treatment box 2 and is coaxially fixed with a driving shaft 402; a plurality of stirring blades 403 are radially fixed to the outer wall of the drive shaft 402. During the use, drive stirring vane 403 through drive shaft 402 through first driving motor 401 and rotate, can fully stir diluted phosphoric acid, guaranteed subsequent filtration and the effect of deposiing.
As shown in fig. 3 to 4, the filter assembly 5 includes a first filter plate 501 and a second filter plate 502 fixed side by side from top to bottom in the first treatment tank 2; the lower end of the filter hole of the second filter plate 502 is coaxially connected with a capillary tube 503; the lower end of the capillary 503 extends to the lower portion of the first treatment tank 2. Dilute phosphoric acid after the stirring enters into between first filter 501 and the second filter 502 after first filter 501 filters once, can effectively reduce the volatility of dilute phosphoric acid, then passes through between capillary 503 entering second filter 502 and the first diapire of handling case 2 again to can further reduce the volatility of dilute phosphoric acid, and then effectively realize the solid-liquid layering of dilute phosphoric acid between the diapire of second filter 502 and first handling case 2.
The third concrete embodiment:
the embodiment is further optimized on the basis of the second specific embodiment, which is specifically as follows:
as shown in fig. 2, the delivery assembly 7 includes a first delivery tube 701; one end of the first transport pipe 701 is connected to the lower part of the first treatment tank 2, and the other end is connected to the upper part of the second treatment tank 3; the connection point between the first transport pipe 701 and the first treatment tank 2 is located below the second filter plate 502, and the connection point is located above the lower end of the capillary 503; the connection point between the first transfer pipe 701 and the second treatment tank 3 is located above the transfer hopper 601. When in use, the upper layer liquid between the second filter plate 502 and the bottom wall of the first treatment tank 2 is sent to the second treatment tank 3 through the first conveying pipe 701, thereby realizing continuous purification treatment of phosphoric acid.
As shown in fig. 5 to 7, the bottom of the second processing tank 3 has a storage area; the storage area is arranged below the precipitation assembly 6; the storage area is used for storing the purified phosphoric acid; the sedimentation component 6 comprises a plurality of conveying hoppers 601 which are fixed in the second treatment box 3 from top to bottom in parallel; the side wall of the conveying hopper 601 is in an inclined state; a settling box 602 with an open upper part is fixed below the conveying hopper 601; the upper opening of the settling box 602 is in a trumpet-shaped structure; a plurality of conveying holes 6021 are uniformly distributed at an opening at the upper part of the settling box 602; a conveying gap is formed between the side wall of the sedimentation box 602 and the side wall of the second treatment box 3; a third filter plate 603 is horizontally fixed in the settling box 602; a conveying pipe 604 is vertically inserted into the third filter plate 603; the upper end of the delivery pipe 604 is connected to the lower portion of the delivery hopper 601. During the use, send diluted phosphoric acid to the lower part of deposiing the box 602 through transfer hopper 601 and conveyer pipe 604, diluted phosphoric acid forms the solid-liquid layering after deposiing the box 602, then carries through third filter 603 and delivery port 6021 to realize depositing many times to diluted phosphoric acid, can effectively guarantee the purifying effect of phosphoric acid.
The fourth concrete embodiment:
the embodiment is further optimized on the basis of the third specific embodiment, which is specifically as follows:
as shown in fig. 5-7, a plurality of depositing boxes 602 are provided with a deslagging assembly 8; the deslagging assembly 8 is arranged below the third filter plate 603; the deslagging assembly 8 is used for removing sediments in the sedimentation box 602; the deslagging assembly 8 comprises a pair of guide posts 801 arranged side by side inside the precipitation box 602; two ends of the guide column 801 are respectively fixed on two opposite side walls of the precipitation box 602; a sliding sleeve 802 is slidably sleeved on the guide column 801; the two sliding sleeves 802 are connected through a slag suction pipe 803; a plurality of slag inlets are axially formed on the outer wall of the slag suction pipe 803; the slag suction pipe 803 is connected with a second conveying pipe 804; the second conveying pipe 804 is an elastic pipe; one ends of the second transfer pipes 804 each extend through to the outside of the second treatment tank 3 and are connected by a header 805; the joint between the second conveying pipe 804 and the side wall of the second treatment tank 3 is treated by a conventional sealing structure; one end of the header 805 is connected to a slag trap 806; the slag collection box 806 is fixed on the support table 1; the header pipe 805 is provided with a second feed pump 807. During the use, through second delivery pump 807 through the collection pipe, second conveying pipe 804 and inhale sediment pipe 803 with deposit box 602 bottom deposit take out to in the collection sediment case 806 to guaranteed the interior sediment space of sediment box 602, further guaranteed the purifying effect to phosphoric acid.
As shown in fig. 5-7, a plurality of slag suction pipes 803 are connected by a driving assembly 9; the driving assembly 9 is used for driving the slag suction pipe 803 to move in the sedimentation box 602; the driving assembly 9 comprises a plurality of pairs of driving wheels 901 respectively arranged on two opposite side walls of the second processing box 3; a driving belt 902 is lapped on the driving wheel 901; both ends of the driving belt 902 penetrate through the other opposite side walls of the second treatment tank 3 and one opposite side walls of the settling box 602 in sequence and are connected to the outer wall of the slag suction pipe 803 along the axial direction of the guide column 801; the drive belt 902 is slidably fitted to both the side wall of the second treatment tank 3 and the side wall of the settling box 602; a fixed pulley 903 is arranged on one opposite side of the driving wheel 901; the fixed pulley 903 is arranged at the side cooling part of the second treatment box 3; a plurality of driving wheels 901 positioned on the same side are connected through a vertically arranged transmission shaft 904; the transmission shaft 904 is inserted on the support table 1 in a rotating way; a first belt pulley 905 is horizontally fixed at the lower end of the transmission shaft 904; a second driving motor 906 is vertically fixed between the two first pulleys 905; a second belt wheel 906 is horizontally fixed on an output shaft of the second driving motor 906; the second belt wheel 906 is in transmission connection with the two first belt wheels 905 through a synchronous belt. When the device is used, the second driving motor 906 drives the driving belt 902 to move through the second belt wheel 906, the first belt wheel 905, the transmission shaft 904 and the driving wheel 901, so that the slag suction pipe 803 can move in the axial direction of the guide column 801 in the sedimentation box 602, and sediment on the bottom wall of the sedimentation box 602 can be removed.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A phosphoric acid purification device comprises a support table (1) which is horizontally arranged; the method is characterized in that:
a first treatment box (2) and a second treatment box (3) are fixed above the support table (1) in parallel; the first treatment box (2) is internally provided with a stirring component (4) and a filtering component (5) from top to bottom; a sedimentation component (6) is arranged in the second treatment box (3); the upper part of the second processing box (3) is connected with the lower part of the first processing box (2) through a conveying assembly (7).
2. A phosphoric acid purification apparatus according to claim 1, wherein said stirring assembly (4) comprises a first driving motor (401) vertically fixed to the top wall of the first treatment tank (2); the output shaft of the first driving motor (401) extends to the inside of the first treatment box (2) and is coaxially fixed with a driving shaft (402); a plurality of stirring blades (403) are radially fixed to the outer wall of the drive shaft (402).
3. A phosphoric acid purification apparatus according to claim 2, wherein said filter unit (5) comprises a first filter plate (501) and a second filter plate (502) fixed side by side from top to bottom in the first treatment tank (2); the lower ends of the filter holes of the second filter plate (502) are coaxially connected with capillary tubes (503); the lower end of the capillary (503) extends to the lower part of the first treatment box (2).
4. A phosphoric acid purification apparatus according to claim 2 or 3, wherein the precipitation assembly (6) comprises a plurality of transport hoppers (601) fixed in the second treatment tank (3) side by side from top to bottom; a settling box (602) with an upper part of an open structure is fixed below the conveying hopper (601); the upper part of the sedimentation box (602) is opened to form a horn-shaped structure; a plurality of conveying holes (6021) are uniformly distributed at an opening at the upper part of the sedimentation box (602); a conveying gap is formed between the side wall of the sedimentation box (602) and the side wall of the second processing box (3); a third filter plate (603) is horizontally fixed in the sedimentation box (602); a conveying pipe (604) is vertically inserted into the third filter plate (603); the upper end of the conveying pipe (604) is connected to the lower part of the conveying hopper (601).
5. A phosphoric acid purification apparatus according to claim 4, wherein the delivery assembly (7) comprises a first delivery pipe (701); one end of the first conveying pipe (701) is connected to the lower part of the first treatment box (2), and the other end of the first conveying pipe is connected to the upper part of the second treatment box (3); the connection point between the first transport pipe (701) and the first treatment tank (2) is located below the second filter plate (502); the connection point between the first conveying pipe (701) and the second processing box (3) is positioned above the conveying hopper (601).
6. A phosphoric acid purification apparatus as claimed in claim 4, wherein a plurality of said settling boxes (602) are provided with a deslagging assembly (8); the deslagging assembly (8) is arranged below the third filter plate (603); the deslagging assembly (8) is used for removing sediments in the sedimentation box (602).
7. A phosphoric acid purification apparatus as claimed in claim 6, wherein said deslagging assembly (8) comprises a pair of guide posts (801) disposed side by side inside the settling box (602); two ends of the guide column (801) are respectively fixed on two opposite side walls of the precipitation box (602); a sliding sleeve (802) is slidably sleeved on the guide column (801); the two sliding sleeves (802) are connected through a slag suction pipe (803); a plurality of slag inlets are axially formed in the outer wall of the slag suction pipe (803); the slag suction pipe (803) is connected with a second conveying pipe (804); one ends of a plurality of second conveying pipes (804) extend to the outside of the second treatment box (3) and are connected through a collecting pipe (805); one end of the collecting pipe (805) is connected to a slag collecting tank (806); the slag collecting box (806) is fixed on the supporting table (1); the collecting pipe (805) is provided with a second delivery pump (807).
8. A phosphoric acid purification apparatus according to claim 7, wherein a plurality of said slag suction pipes (803) are connected by a driving unit (9); the driving assembly (9) is used for driving the slag suction pipe (803) to move in the sedimentation box (602); the driving component (9) comprises a plurality of pairs of driving wheels (901) which are respectively arranged on two opposite side walls of the second processing box (3); a driving belt (902) is lapped on the driving wheel (901); two ends of the driving belt (902) respectively penetrate through the other two opposite side walls of the second treatment box (3) and one two opposite side walls of the sedimentation box (602) in sequence and are connected to the outer wall of the slag suction pipe (803) along the axial direction of the guide column (801); fixed pulleys (903) are arranged on two opposite sides of the driving wheel (901); the fixed pulley (903) is arranged at the side cold part of the second treatment box (3); a plurality of driving wheels (901) positioned on the same side are connected through a vertically arranged transmission shaft (904); the transmission shaft (904) is inserted on the support table (1) in a rotating mode; a first belt wheel (905) is horizontally fixed at the lower end of the transmission shaft (904); a second driving motor (906) is vertically fixed between the two first belt wheels (905); a second belt wheel (906) is horizontally fixed on an output shaft of the second driving motor (906); the second belt wheel (906) is in transmission connection with the two first belt wheels (905) through a synchronous belt.
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| CN202210059273.8A CN114288754B (en) | 2022-01-19 | 2022-01-19 | Phosphoric acid purification device |
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| CN202210059273.8A CN114288754B (en) | 2022-01-19 | 2022-01-19 | Phosphoric acid purification device |
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| CN114288754B (en) | 2023-03-21 |
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