Phosphate preparation device

Abstract

The phosphate preparation device comprises a reaction kettle, a feeding assembly and a cleaning assembly, the reaction kettle comprises a reaction kettle body, an upper cover is installed on the reaction kettle body, a rotating shaft is rotationally connected into the reaction kettle body, and a plurality of stirring impellers are installed on the side wall, located in the reaction kettle body, of the rotating shaft; the feeding assembly comprises a feeding hopper, the feeding hopper is installed on the upper cover, a filter plate is installed in the feeding hopper, a plurality of filter holes are formed in the filter plate, and a plurality of first magnetic suction plates are fixedly connected to the bottom of the filter plate. Phosphate ore is screened and filtered through the feeding assembly, and meanwhile metal impurities in the phosphate ore can be filtered, so that phosphate entering the reaction kettle can be in contact reaction with sulfuric acid conveniently, and the phosphate preparation efficiency is improved; the cleaning assembly is arranged to clean impurities attached to the inner wall of the reaction kettle under the driving of the stirring impeller, so that the inner wall of the reaction kettle is convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of phosphate preparation, and in particular relates to a phosphate preparation device. Background Art

[0002] The wet phosphoric acid production process is a commonly used method for preparing phosphates, and its main steps include crushing, acid leaching, filtration, concentration and crystallization of phosphate ore. This process is highly efficient and environmentally friendly, and is widely used in agricultural fertilizers, food additives, medicines and chemicals.

[0003] In the process of phosphate preparation, acid leaching is the core step of phosphate preparation. The ground and crushed phosphate ore is transported to the reactor and mixed with sulfuric acid solution for reaction.

[0004] However, the ground and crushed phosphate rock contains metal impurities and will form lumps if left for a long time, making it difficult to react with sulfuric acid when put into the reactor, thereby affecting the efficiency of phosphate preparation. At the same time, when the phosphate rock and sulfuric acid react, impurities will adhere to the inner wall of the reactor, making it difficult to clean the inner wall of the reactor.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a phosphate preparation device, which can solve the problem that the agglomeration and impurities of phosphate ore make it difficult to react with sulfuric acid and the impurities attached to the inner wall of the reactor during the reaction are inconvenient to clean.

[0007] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0008] A phosphate preparation device, comprising:

[0009] The reactor comprises a reactor body, an upper cover is installed on the reactor body, a rotating shaft is rotatably connected in the reactor body, and a plurality of stirring impellers are installed on the side wall of the rotating shaft located in the reactor body, and the stirring impellers are driven to rotate by the rotation of the rotating shaft, so that the phosphate ore and sulfuric acid in the reactor body can be stirred by the stirring impellers to promote the reaction between the two. At the same time, since there are components installed in the reactor body, in order to facilitate the maintenance and replacement of the components in the reactor body, the reactor body and the upper cover are connected in a detachable manner.

[0010] The feed assembly includes a feed funnel, which is mounted on the upper cover. A filter plate is mounted in the feed funnel, and a plurality of filter holes are provided on the filter plate. In order to facilitate the screening of the phosphate ore entering the reactor body, so that the agglomerated phosphate ore does not enter, the filter plate is set so that the phosphate ore enters the reactor body after being screened by the filter plate. A plurality of first magnetic plates are fixedly connected to the bottom of the filter plate, and a second magnetic plate is fixedly connected to the bottom of the first magnetic plate. In order to facilitate the filtering of metal impurities in the phosphate ore, the phosphate ore will pass through the filter holes after being screened by the filter plate, and the phosphate ore passing through the filter holes will filter the metal impurities contained by the first magnetic plate and the second magnetic plate.

[0011] The cleaning component includes a cleaning plate, and a plurality of cleaning plates are provided. The plurality of cleaning plates are respectively installed at one end of the plurality of stirring impellers away from the rotating shaft. When the stirring impeller rotates, the cleaning plate can be driven to rotate. The impurities attached to the inner wall of the reactor body can be cleaned by the rotation of the cleaning plate, making it easy to clean the impurities on the inner wall of the reactor body.

[0012] In one or more embodiments of the present invention, a motor is installed at the upper end of the rotating shaft, and a pair of support rods are installed between the motor and the upper cover. The rotating shaft is driven to rotate by the motor, and a pair of support rods are provided to support the motor so that the motor and the rotating shaft are stable during rotation.

[0013] In one or more embodiments of the present invention, a discharge port is installed at the bottom of the reactor body, and a discharge valve is installed on the discharge port. After the phosphate ore and sulfuric acid in the reactor body are acid-leached, they will be discharged through the discharge port, and the discharge port is switched on and off by the discharge valve.

[0014] In one or more embodiments of the present invention, a pair of crushing impellers are installed on the side walls of the rotating shaft, and the pair of crushing impellers are arranged above the filter plate. A pair of crushing knives are fixedly connected to the bottom of the front and rear side walls of the crushing impeller. The rotation of the rotating shaft drives the crushing impeller and the crushing knives to rotate, and the crushing impeller and the crushing knives will break up the agglomerated phosphate ore particles on the filter plate, so that the agglomerated phosphate ore is broken up and enters the reactor body through the screening of the filter plate. At the same time, the crushing impeller improves the screening efficiency of the filter plate for the phosphate ore.

[0015] In one or more embodiments of the present invention, a bearing is installed at the center of the filter plate, and the rotating shaft is installed in the bearing in a penetrating manner. The bearing ensures that the installation of the filter plate does not affect the rotation of the rotating shaft.

[0016] In one or more embodiments of the present invention, the feed funnel is covered with a pair of cover plates, one of which is provided with a feed pipe, and the upper end of the feed funnel is sealed by the cover plate. The feed pipe is used to transport the phosphate ore into the feed funnel for screening.

[0017] In one or more embodiments of the present invention, a pair of cover plates are provided with through holes at the centers of opposite sides thereof, and the rotating shaft passes through the through holes, so that the installation of the cover plates will not affect the rotation of the rotating shaft.

[0018] In one or more embodiments of the utility model, a feed port is provided on the upper cover, and the feed funnel is installed on the feed port, so that the phosphate ore screened by the filter plate in the feed funnel enters the reactor body through the feed port.

[0019] In one or more embodiments of the utility model, a cleaning protrusion is provided on one side of the cleaning plate close to the inner wall of the reactor body, and a plurality of granular protrusions are provided on one side of the cleaning protrusion close to the inner wall of the reactor body. When the cleaning plate rotates, the cleaning protrusion is driven to rotate, and the impurities attached to the inner wall of the reactor body can be scraped and cleaned by the granular protrusions on the cleaning protrusion, thereby facilitating the cleaning of the impurities attached to the inner wall of the reactor body.

[0020] In one or more embodiments of the utility model, a sleeve shell is fixedly connected to the side wall of the cleaning plate away from the cleaning protrusion, and the sleeve shell is sleeved in the stirring impeller. Limiting bolts are installed between the sleeve shell and the stirring impeller. The sleeve shell makes it easy to install the cleaning protrusion on the stirring impeller. The limiting bolts make the sleeve shell stable when installed on the stirring impeller and easy to disassemble and assemble, thereby facilitating the disassembly, assembly and replacement of the cleaning plate.

[0021] Compared with the prior art, the utility model screens and filters the phosphate ore through the feeding component, and at the same time filters the metal impurities in the phosphate ore, so that the phosphate entering the reactor is easy to contact and react with sulfuric acid, thereby improving the efficiency of phosphate preparation; by arranging a cleaning component, the impurities attached to the inner wall of the reactor are cleaned under the drive of the stirring impeller, making it convenient to clean the inner wall of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1It is a front view of a phosphate preparation device in one embodiment of the utility model;

[0024] Figure 2 A cross-sectional view of a phosphate preparation device in one embodiment of the utility model Figure 1 ;

[0025] Figure 3 A cross-sectional view of a phosphate preparation device in one embodiment of the utility model Figure 2 ;

[0026] Figure 4 It is a cross-sectional view of a phosphate preparation device in one embodiment of the utility model;

[0027] Figure 5 In one embodiment of the utility model Figure 3 The enlarged view of point A in the middle;

[0028] Figure 6 An exploded view of a feed assembly in one embodiment of the utility model;

[0029] Figure 7 It is an exploded view of a cleaning component in one embodiment of the utility model.

[0030] Description of main reference numerals:

[0031] 1-reactor, 11-reactor body, 12-upper cover, 13-rotating shaft, 14-stirring impeller, 15-motor, 16-support rod, 17-discharge port, 18-discharge valve, 2-feeding assembly, 21-feeding funnel, 22-filter plate, 23-filter hole, 24-first magnetic plate, 25-second magnetic plate, 26-crushing impeller, 27-crushing knife, 28-bearing, 29-cover plate, 210-feeding pipe, 211-feeding port, 3-cleaning assembly, 31-cleaning plate, 32-cleaning protrusion, 33-sleeve shell, 34-limiting bolt. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] like Figure 1 to Figure 4 As shown, a phosphate preparation device in one embodiment of the utility model includes a reaction kettle 1, a feeding component 2 and a cleaning component 3.

[0034] like Figure 1 to Figure 4 As shown, the reactor 1 includes a reactor body 11, on which an upper cover 12 is installed, and a rotating shaft 13 is rotatably connected in the reactor body 11. The rotating shaft 13 is located in the reactor body 11 and a plurality of stirring impellers 14 are installed on the side wall thereof. The stirring impellers 14 are driven to rotate by the rotation of the rotating shaft 13, so that the phosphate ore and sulfuric acid in the reactor body 11 can be stirred by the stirring impellers 14 to promote the reaction between the two. At the same time, since there are components installed in the reactor body 11, in order to facilitate the maintenance and replacement of the components in the reactor body 11, the reactor body 11 and the upper cover 12 are connected in a detachable manner.

[0035] like Figure 1 to Figure 5 As shown, the feed assembly 2 includes a feed hopper 21, which is mounted on the upper cover 12. A filter plate 22 is mounted in the feed hopper 21, and a plurality of filter holes 23 are provided on the filter plate 22. In order to facilitate the screening of the phosphate ore entering the reactor body 11, so that the agglomerated phosphate ore does not enter, the filter plate 22 is provided so that the phosphate ore is screened by the filter plate 22 before entering the reactor body 11. A plurality of first magnetic plates 24 are fixedly connected to the bottom of the filter plate 22, and a second magnetic plate 25 is fixedly connected to the bottom of the first magnetic plate 24. In order to facilitate the filtering of metal impurities in the phosphate ore, the phosphate ore will pass through the filter holes 23 after being screened by the filter plate 22, and the phosphate ore passing through the filter holes 23 will pass through the first magnetic plate 24 and the second magnetic plate 25 to filter the metal impurities contained therein.

[0036] Preferably, Figure 5 and Figure 6 As shown, a plurality of filter holes 23 are arranged in a ring-shaped manner in multiple circles, a first magnetic plate 24 is arranged in a ring-shaped manner at the bottom of the filter plate 22, and the first magnetic plate 24 is arranged directly below the filter holes 23, so that the phosphate ore is screened through the gap between the filter holes 23 and the first magnetic plate 24, so that the phosphate ore can be better contacted with the first magnetic plate 24, thereby improving the filtering efficiency of the first magnetic plate 24 for metal impurities.

[0037] like Figure 2 to Figure 4 As shown, the cleaning component 3 includes a cleaning plate 31, and a plurality of cleaning plates 31 are provided. The plurality of cleaning plates 31 are respectively installed at one end of the plurality of stirring impellers 14 away from the rotating shaft 13. When the stirring impeller 14 rotates, the cleaning plate 31 can be driven to rotate. Through the rotation of the cleaning plate 31, the impurities attached to the inner wall of the reactor body 11 can be cleaned, making it easy to clean the impurities on the inner wall of the reactor body 11.

[0038] like Figure 1 to Figure 4As shown, a motor 15 is installed at the upper end of the rotating shaft 13, and a pair of support rods 16 are installed between the motor 15 and the upper cover 12. The rotating shaft 13 is driven to rotate by the motor 15, and a pair of support rods 16 are provided to support the motor 15 so that the motor 15 and the rotating shaft 13 are stable when rotating.

[0039] like Figure 1 to Figure 4 As shown, a discharge port 17 is installed at the bottom of the reactor body 11, and a discharge valve 18 is installed on the discharge port 17. After the phosphate ore and sulfuric acid in the reactor body 11 are acid-leached, they will be discharged through the discharge port 17, and the discharge port 17 is switched on and off by the discharge valve 18.

[0040] like Figure 3 , Figure 5 and Figure 6 As shown, a pair of crushing impellers 26 are installed on the side wall of the rotating shaft 13, and the pair of crushing impellers 26 are arranged above the filter plate 22. A pair of crushing knives 27 are fixedly connected to the bottom of the front and rear side walls of the crushing impeller 26. The crushing impellers 26 and the crushing knives 27 are driven to rotate by the rotation of the rotating shaft 13, and the crushing impellers 26 and the crushing knives 27 will break up the agglomerated phosphate ore particles on the filter plate 22, so that the agglomerated phosphate ore is broken up and enters the reactor body 11 through the screening of the filter plate 22. At the same time, the crushing impellers 26 improve the screening efficiency of the filter plate 22 for the phosphate ore.

[0041] like Figure 5 and Figure 6 As shown, a bearing 28 is installed at the center of the filter plate 22 , and the rotating shaft 13 is installed in the bearing 28 in a penetrating manner. The bearing 28 ensures that the installation of the filter plate 22 will not affect the rotation of the rotating shaft 13 .

[0042] like Figure 2 and Figure 6 As shown, the feed hopper 21 is covered with a pair of cover plates 29, and a feed pipe 210 is installed on one of the cover plates 29. The upper end of the feed hopper 21 is sealed by the cover plate 29. At the same time, the feed pipe 210 is used to transport the phosphate ore into the feed hopper 21 for screening.

[0043] like Figure 6 As shown, a pair of cover plates 29 are provided with through holes at the centers of opposite sides thereof, and the rotating shaft 13 passes through the through holes, so that the installation of the cover plates 29 will not affect the rotation of the rotating shaft 13 .

[0044] like Figure 2 and Figure 5 As shown, a feed port 211 is provided on the upper cover 12 , and a feed hopper 21 is installed on the feed port 211 , so that the phosphate ore screened by the filter plate 22 in the feed hopper 21 enters the reactor body 11 through the feed port 211 .

[0045] like Figure 3 and Figure 7 As shown, a cleaning protrusion 32 is provided on one side of the cleaning plate 31 close to the inner wall of the reactor body 11, and a plurality of granular protrusions are provided on one side of the cleaning protrusion 32 close to the inner wall of the reactor body 11. When the cleaning plate 31 rotates, the cleaning protrusion 32 is driven to rotate, and the impurities attached to the inner wall of the reactor body 11 can be scraped and cleaned by the granular protrusions on the cleaning protrusion 32, thereby facilitating the cleaning of the impurities attached to the inner wall of the reactor body 11.

[0046] like Figure 3 and Figure 7 As shown, a sleeve shell 33 is fixedly connected to the side wall of the cleaning plate 31 away from the cleaning protrusion 32. The sleeve shell 33 is sleeved in the stirring impeller 14. A limiting bolt 34 is installed between the sleeve shell 33 and the stirring impeller 14. The sleeve shell 33 makes it easy to install the cleaning protrusion 32 on the stirring impeller 14. The limiting bolt 34 makes the sleeve shell 33 stable when installed on the stirring impeller 14 and easy to disassemble and assemble, thereby facilitating the disassembly, assembly and replacement of the cleaning plate 31.

[0047] When in use, phosphate ore is put into the feed hopper 21 through the feed pipe 210, and the phosphate ore can be screened through the filter plate 22. At the same time, the rotation of the rotating shaft 13 drives the crushing impeller 26 and the crushing knife 27 to rotate. The crushing impeller 26 and the crushing knife 27 can crush the phosphate ore agglomerated on the filter plate 22 when rotating, so that the agglomerated phosphate ore enters the reactor body 11 through the filter hole 23. The phosphate ore passing through the filter hole 23 will filter the metal impurities through the first magnetic attraction plate 24 and the second magnetic attraction plate 25. The phosphate ore entering the reactor body 11 is mixed with sulfuric acid in the reactor body 11, and the calcium phosphate and sulfuric acid react through the stirring of the stirring impeller 14, thereby completing the acid leaching process; at the same time, the rotation of the stirring impeller 14 will drive the cleaning plate 31 to rotate, so as to clean the impurities attached to the inner wall of the reactor body 11 through the cleaning protrusion 32, so that the cleaning of the inner wall of the reactor body 11 is convenient.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A phosphate preparation device, characterized in that: include: A reactor, comprising a reactor body, an upper cover is installed on the reactor body, a rotating shaft is rotatably connected in the reactor body, and a plurality of stirring impellers are installed on the side wall of the rotating shaft located in the reactor body; A feed assembly, comprising a feed funnel, the feed funnel being mounted on the upper cover, a filter plate being mounted in the feed funnel, a plurality of filter holes being provided on the filter plate, a plurality of first magnetic plates being fixedly connected to the bottom of the filter plate, and a second magnetic plate being fixedly connected to the bottom of the first magnetic plate; The cleaning assembly comprises a cleaning plate, wherein a plurality of cleaning plates are provided and the plurality of cleaning plates are respectively installed at one end of the plurality of stirring impellers away from the rotating shaft.

2. A phosphate preparation device according to claim 1, characterized in that: A motor is installed at the upper end of the rotating shaft, and a pair of supporting rods are installed between the motor and the upper cover.

3. A phosphate preparation device according to claim 1, characterized in that: A discharge port is installed at the bottom of the reactor body, and a discharge valve is installed on the discharge port.

4. A phosphate preparation device according to claim 1, characterized in that: A pair of crushing impellers are installed on the side wall of the rotating shaft, and the pair of crushing impellers are arranged above the filter plate. A pair of crushing knives are fixedly connected to the bottom of the front and rear side walls of the crushing impeller.

5. A phosphate preparation device according to claim 4, characterized in that: A bearing is installed at the center of the filter plate, and the rotating shaft is installed in the bearing in a penetrating manner.

6. A phosphate preparation device according to claim 1, characterized in that: The upper cover of the feed hopper is connected with a pair of cover plates, and a feed pipe is installed on one of the cover plates.

7. A phosphate preparation device according to claim 6, characterized in that: A through hole is opened at the center of the opposite side of a pair of cover plates, and the rotating shaft passes through the through hole.

8. A phosphate preparation device according to claim 1, characterized in that: The upper cover is provided with a feed inlet, and the feed funnel is installed on the feed inlet.

9. A phosphate preparation device according to claim 1, characterized in that: A cleaning protrusion is arranged on one side of the cleaning plate close to the inner wall of the reactor body, and a plurality of granular protrusions are arranged on one side of the cleaning protrusion close to the inner wall of the reactor body.

10. A phosphate preparation device according to claim 9, characterized in that: A sleeve shell is fixedly connected to the side wall of the cleaning plate away from the cleaning protrusion. The sleeve shell is sleeved in the stirring impeller, and a limiting bolt is installed between the sleeve shell and the stirring impeller.

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