Potassium magnesium sulphate fertilizer purification device and method

Abstract

The invention discloses a potash magnesium sulphate fertilizer purification device and method, and relates to the technical field of potash magnesium sulphate fertilizer production.The potash magnesium sulphate fertilizer purification device comprises a collection pool used for storing potassium sulphate mother liquor, and a flotation foam receiving plate, a baffle plate and a liquid conveying pipe which are sequentially arranged above the collection pool; the liquid conveying pipe is used for conveying the potassium sulfate mother liquor in the collecting pool to be sprayed to the baffle plate, the projection of the baffle plate falls into the area of the flotation foam receiving plate, the projection of the flotation foam receiving plate falls into the collecting pool, and the distribution of the potassium sulfate mother liquor can be realized through the baffle plate; and the dispersed potassium sulfate mother liquor falls onto the flotation foam receiving plate and reacts with flotation foam, so that the potassium sulfate mother liquor and the flotation foam can be in full contact and are uniformly mixed, and the purity of the potash magnesium sulphate fertilizer is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of potassium sulfate magnesium fertilizer production, and in particular to a potassium sulfate magnesium fertilizer purification device and method. Background Art

[0002] Potassium magnesium sulfate fertilizer is a multi-element potassium fertilizer. In addition to potassium, sulfur and magnesium, it also contains calcium, silicon, boron, iron, zinc and other elements. It is weakly alkaline and is particularly suitable for acidic soils. It is generally used as a base fertilizer or a topdressing fertilizer. It is suitable for crops such as rice, corn, sugarcane, peanuts, tobacco, potatoes, beets, fruits, vegetables, and alfalfa.

[0003] The current magnesium sulfate and potash fertilizer production system is single. For example, in a preparation process of a potassium sulfate and magnesium fertilizer with a publication number of CN 117362096A, the process includes the following steps: placing a potassium mixed salt ore in a decomposition mother liquor and fresh water for conversion under stirring conditions; after the conversion is complete, adding a collector for flotation to obtain a flotation foam; filtering the flotation foam with a machine and spraying potassium sulfate mother liquor during the machine filtration process to obtain a wet-based potassium sulfate and magnesium fertilizer, and then drying and packaging to obtain potassium sulfate and magnesium fertilizer. Although potassium sulfate and magnesium fertilizer can be obtained in the above process, the potassium sulfate mother liquor sprayed after the flotation foam cannot be fully reacted and utilized, resulting in low purity of the obtained wet-based potassium sulfate and magnesium fertilizer.

[0004] Therefore, it is necessary to develop and design a potassium sulfate and magnesium fertilizer purification device to evenly mix the potassium sulfate mother liquor with the flotation foam, thereby improving the purity of the potassium sulfate and magnesium fertilizer, which is a technical problem that technicians in this field urgently need to solve. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a potassium sulfate magnesium fertilizer purification device and method, which can evenly mix the potassium sulfate mother liquor and the flotation foam, thereby improving the purity of the potassium sulfate magnesium fertilizer.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A potassium sulfate magnesium fertilizer purification device comprises a collection tank for storing potassium sulfate mother liquor, a flotation foam receiving plate and a shielding plate arranged in sequence above the collection tank, and an infusion pipe, wherein the infusion pipe is used to transport the potassium sulfate mother liquor in the collection tank and spray it onto the shielding plate, the projection of the shielding plate falls within the area of ​​the flotation foam receiving plate, and the projection of the flotation foam receiving plate falls within the collection tank.

[0008] Preferably, the infusion tube is connected to the collection tank via a water pump, and the infusion tube passes through the middle of the flotation foam receiving plate and is arranged opposite to the middle of the shielding plate.

[0009] Preferably, an overflow plate extending toward the baffle plate is provided on the circumference of the flotation froth receiving plate.

[0010] Preferably, the flotation froth receiving plate is arranged in an arc from the midline to the circumference and downward, and a chute is provided on the upper surface of the flotation froth receiving plate.

[0011] Preferably, the chute is a serpentine structure.

[0012] Preferably, the shielding plate is circumferentially provided with side plates extending toward the flotation froth receiving plate, and a receiving tray for evenly distributing the potassium sulfate mother liquor is provided at the bottom of the side plate, and the receiving tray is provided with through holes.

[0013] Preferably, the through holes are evenly arranged on the receiving plate.

[0014] Preferably, a spring is provided on the mating surface between the shielding plate and the infusion tube, and a flow equalizing plate is connected to the free end of the spring.

[0015] Preferably, there are two or more springs, which are evenly arranged on the shielding plate.

[0016] The invention also discloses a method for purifying potassium magnesium sulfate fertilizer, comprising the following steps:

[0017] The potassium mixed salt ore is placed in the decomposition mother liquor and fresh water for mixed conversion, and the mixed liquor is stirred;

[0018] After the conversion is complete, a collector is added for flotation to obtain flotation foam;

[0019] The filtered flotation foam is placed on the flotation foam receiving plate, and the infusion pipe transports the potassium sulfate mother liquor in the collection pool to the shielding plate. The mother liquor is blocked by the shielding plate and splashes downward, falls on the flotation foam receiving plate, and reacts with the flotation foam to obtain wet-based potassium sulfate magnesium fertilizer;

[0020] The wet-base potassium-magnesium sulfate fertilizer is then dried and packaged to obtain potassium-magnesium sulfate fertilizer.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] By causing the potassium sulfate mother liquor to be splashed on the shielding plate, and the projection of the shielding plate falls on the flotation foam receiving plate area, and the projection of the flotation foam receiving plate falls in the collection tank, the shielding plate can realize the diversion of the potassium sulfate mother liquor, and then disperse the potassium sulfate mother liquor to all sides, and the dispersed potassium sulfate mother liquor falls on the flotation foam receiving plate and reacts with the flotation foam, so that the potassium sulfate mother liquor and the flotation foam can be fully contacted and evenly mixed, thereby improving the purity of the potassium sulfate magnesium fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Attached Figure 1 The figure is a schematic diagram of the manufacturing process of the potassium-magnesium sulfate fertilizer purification device disclosed in the present invention;

[0025] Attached Figure 2 It is a schematic diagram of the overall structure of the spray device of the potassium magnesium sulfate fertilizer purification device disclosed in the present invention;

[0026] Attached Figure 3 It is a structural schematic diagram of the chute of the potassium-magnesium sulfate fertilizer purification device disclosed in the present invention;

[0027] Among them, 1. mixing and conversion; 2. flotation; 3. spraying; 4. drying; 5. shielding plate; 6. infusion tube; 7. flotation foam receiving plate; 8. collection tank; 9. water pump; 10. chute; 11. receiving tray; 12. through hole. DETAILED DESCRIPTION

[0028] 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a potassium sulfate magnesium fertilizer purification device and method, so that the potassium sulfate mother liquor and the flotation foam are evenly mixed, thereby improving the purity of the potassium sulfate magnesium fertilizer.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] refer to Figure 2 The potassium sulfate magnesium fertilizer purification device disclosed in the embodiment of the present invention at least includes a collecting tank 8 for storing potassium sulfate mother liquor, a flotation foam receiving plate 7 is arranged above the collecting tank 8, a shielding plate 5 is arranged above the flotation foam receiving plate 7, the shielding plate 5 is projected onto the flotation foam receiving plate 7, and the projection of the flotation foam receiving plate 7 falls into the collecting tank 8, and also includes an infusion pipe 6, the water inlet end of the infusion pipe 6 is connected to the collecting tank 8, the water outlet end of the infusion pipe 6 is aligned with the shielding plate 5, the infusion pipe 6 sprays the potassium sulfate mother liquor in the collecting tank 8 onto the shielding plate 5, and forms sputtering on the shielding plate 5.

[0032] In this embodiment, by causing the potassium sulfate mother liquor to be splashed on the baffle plate 5, and the projection of the baffle plate 5 falls within the area of ​​the flotation foam receiving plate 7, and the projection of the flotation foam receiving plate 7 falls within the collecting tank 8, the baffle plate 5 can realize the diversion of the potassium sulfate mother liquor, thereby dispersing the potassium sulfate mother liquor to the surroundings. The dispersed potassium sulfate mother liquor falls onto the flotation foam receiving plate 7 and reacts with the flotation foam, so that the potassium sulfate mother liquor and the flotation foam can be fully contacted and evenly mixed, thereby improving the purity of the potassium sulfate magnesium fertilizer.

[0033] refer to Figure 2 In one embodiment, the infusion tube 6 is connected to the collection tank 8 through a water pump 9. The infusion tube 6 passes through the middle of the flotation foam receiving plate 7 and is arranged opposite to the middle of the baffle plate 5. The water pump 9 ensures the pressure of the potassium sulfate mother liquor to achieve the effect of sputtering on the baffle plate 5. The infusion tube 6 passes through the middle of the flotation foam receiving plate 7 and the infusion tube 6 is arranged opposite to the middle of the baffle plate 5, which can further ensure that the sputtered potassium sulfate mother liquor is evenly distributed.

[0034] It should be noted that a sealing gasket is provided at the position where the infusion tube 6 passes through the flotation foam connecting plate to prevent the potassium sulfate mother liquor and flotation foam on the flotation foam connecting plate from entering the collection tank 8 through the through hole 12 on the flotation foam connecting plate.

[0035] refer to Figure 2 As a preferred method, an overflow plate extending toward the baffle plate 5 is arranged on the circumference of the flotation foam receiving plate 7. The setting of the overflow plate can ensure the residence time of the potassium sulfate mother liquor falling on the flotation foam receiving plate 7, so that the potassium sulfate mother liquor and the flotation foam can fully react, thereby further improving the purity of the potassium sulfate magnesium fertilizer.

[0036] refer to Figure 2 and Figure 3 As an implementation mode, the flotation foam receiving plate 7 is arranged with an arc extending from the center line to the circumference and downward, and a chute 10 is provided on the upper surface of the flotation foam receiving plate 7, which not only facilitates the reflux of potassium sulfate mother liquor, but also facilitates the collection of wet-based potassium sulfate magnesium fertilizer through the arrangement of the chute 10.

[0037] refer to Figure 2 and Figure 3 As a preferred method, the chute 10 is a serpentine structure. The setting of the serpentine structure can ensure the residence time of the potassium sulfate mother liquor falling on the flotation foam receiving plate 7, so that the potassium sulfate mother liquor and the flotation foam can fully react.

[0038] refer to Figure 1As a preferred embodiment, a side plate extending toward the flotation foam receiving plate 7 is provided on the circumference of the baffle plate 5, and a receiving tray 11 for evenly distributing the potassium sulfate mother liquor is provided at the bottom of the side plate. A through hole 12 is provided on the receiving tray 11. By setting the side plate, it is possible to prevent the potassium sulfate mother liquor splashed onto the baffle plate from splashing to the periphery of the baffle plate 5, thereby wasting the potassium sulfate mother liquor. By setting the receiving tray 11, the even distribution effect of the potassium sulfate mother liquor can be further improved.

[0039] It should be noted that the circumferential direction of the receiving pan 11 is connected to the side plate, which can further prevent the potassium sulfate mother liquor from splashing to the periphery of the shielding plate 5 .

[0040] refer to Figure 2 As an implementation method, the through holes 12 are evenly arranged on the receiving plate 11, which can improve the even distribution effect of the potassium sulfate mother liquor.

[0041] It should be noted that the through holes 12 may also be arranged in other forms, such as a plum blossom shape.

[0042] refer to Figure 2 As an implementation mode, a spring is provided on the mating surface of the baffle plate 5 and the infusion tube 6, that is, the lower bottom surface of the baffle plate 5, and the free end of the spring is connected to a flow equalizing plate. When the potassium sulfate mother liquor is splashed onto the flow equalizing plate through the infusion tube 6, the spring will drive the flow equalizing plate to vibrate under the action of the impact force, thereby further improving the equal distribution effect of the potassium sulfate mother liquor.

[0043] refer to Figure 2 As an implementation mode, there are two or more springs, and the springs are evenly arranged on the baffle plate 5. Because there are two or more springs, there are also two or more flow equalizing plates matched with the springs. When the potassium sulfate mother liquor is splashed onto a certain flow equalizing plate through the infusion pipe 6, splashing is formed on the flow equalizing plate. At this time, the splashed potassium sulfate mother liquor will fall onto the flow equalizing plate adjacent to this flow equalizing plate, and further equalize the flow, thereby improving the equal distribution effect of the potassium sulfate mother liquor.

[0044] It should be noted that the flow equalizing plate has a wavy structure, which can further improve the equal distribution effect of the potassium sulfate mother liquor.

[0045] refer to Figure 1 , a method for purifying potassium magnesium sulfate fertilizer comprises the following steps:

[0046] The potassium mixed salt ore is placed in the decomposition mother liquor and fresh water for mixed conversion 1, and the mixed liquor is stirred;

[0047] After the conversion is complete, a collector is added to perform flotation 2 to obtain flotation foam;

[0048] The filtered flotation foam is placed on the flotation foam receiving plate 7 and sprayed 3. The spraying method is as follows: the infusion pipe 6 transports the potassium sulfate mother liquor in the collection tank 8 to the baffle plate 5 through the water pump 9. The potassium sulfate mother liquor is shielded by the baffle plate 5 and splashed downward. The potassium sulfate mother liquor dispersed by sputtering is further evenly divided through the through holes 12 arranged on the receiving plate 11 and falls on the flotation foam receiving plate 7. At this time, the potassium sulfate mother liquor gathers on the flotation foam receiving plate 7. When the height of the potassium sulfate mother liquor on the flotation foam receiving plate 7 is higher than the overflow plate arranged around the receiving plate, the potassium sulfate mother liquor begins to flow back to the collection tank 8. This reciprocating process allows the potassium sulfate mother liquor to fully react with the flotation foam to obtain a high-purity wet-base potassium sulfate magnesium fertilizer, and the overflowing potassium sulfate mother liquor can continue to enter the collection tank 8 and be sucked again by the water pump 9 for use.

[0049] The wet-base potassium-magnesium sulfate fertilizer is then dried and packaged to obtain the potassium-magnesium sulfate fertilizer.

[0050] It should be noted that 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 are included in the invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A potassium magnesium sulfate fertilizer purification device, characterized in that, It includes a collection tank for storing potassium sulfate mother liquor, a flotation foam receiving plate and a shielding plate arranged in sequence above the collection tank, and an infusion pipe, wherein the infusion pipe is used to transport the potassium sulfate mother liquor in the collection tank and spray it onto the shielding plate, the projection of the shielding plate falls within the area of ​​the flotation foam receiving plate, and the projection of the flotation foam receiving plate falls within the collection tank.

2. The potassium-magnesium sulfate fertilizer purification device according to claim 1, characterized in that: The infusion pipe is connected to the collection tank through a water pump, and the infusion pipe runs through the middle of the flotation foam receiving plate and is arranged opposite to the middle of the shielding plate.

3. The potassium-magnesium sulfate fertilizer purification device according to claim 1, characterized in that: An overflow plate extending toward the shielding plate is arranged on the circumference of the flotation foam receiving plate.

4. The potassium-magnesium sulfate fertilizer purification device according to claim 1, characterized in that: The flotation foam receiving plate is arranged in an arc from the center line to the circumference and downward, and a chute is provided on the upper surface of the flotation foam receiving plate.

5. The potassium-magnesium sulfate fertilizer purification device according to claim 4, characterized in that: The chute is a serpentine structure.

6. The potassium-magnesium sulfate fertilizer purification device according to claim 1, characterized in that: The shielding plate is provided with a side plate extending toward the flotation foam receiving plate in the circumferential direction thereof, and a receiving tray for evenly distributing the potassium sulfate mother liquor is provided at the bottom of the side plate, and a through hole is provided on the receiving tray.

7. The potassium-magnesium sulfate fertilizer purification device according to claim 6, characterized in that: The through holes are evenly arranged on the receiving plate.

8. The potassium-magnesium sulfate fertilizer purification device according to claim 1, characterized in that: A spring is arranged on the matching surface of the shielding plate and the infusion tube, and a free end of the spring is connected to a flow equalizing plate.

9. The potassium-magnesium sulfate fertilizer purification device according to claim 8, characterized in that: The number of the springs is two or more and they are evenly arranged on the shielding plate.

10. A method for purifying potassium magnesium sulfate fertilizer, characterized in that: The following steps are involved: The potassium mixed salt ore is placed in the decomposition mother liquor and fresh water for mixed conversion, and the mixed liquor is stirred; After the conversion is complete, a collector is added for flotation to obtain flotation foam; The filtered flotation foam is placed on the flotation foam receiving plate, and the infusion pipe transports the potassium sulfate mother liquor in the collection pool to the shielding plate. The mother liquor is blocked by the shielding plate and splashes downward, falls on the flotation foam receiving plate, and reacts with the flotation foam to obtain wet-based potassium sulfate magnesium fertilizer; The wet-base potassium-magnesium sulfate fertilizer is then dried and packaged to obtain potassium-magnesium sulfate fertilizer.

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