A clear liquor grade monoammonium phosphate hydrocyclone gradient crystalliser classifier

Abstract

The utility model discloses a kind of clear liquid grade monoammonium phosphate cyclone gradient crystallization separators, belong to monoammonium phosphate field, including reflux sorting part, detachable installation is filtered screen in the inside of the reflux sorting part, the top of the reflux sorting part is fixedly installed with mounting bracket, the inside center of the mounting bracket is inserted and is installed with cyclone classifier, the lateral wall of the cyclone classifier is fixedly installed with one-way backflow valve pipe.The utility model has the beneficial effect that: reflux sorting part can undertake the slurry impurity mixture that is thrown out in underflow pipe, and filter screen is also provided in the inside of reflux sorting part for secondary filtration, after sedimentation, slurry part in mixture will be gradually filtered out, while liquid level sensor is provided to monitor liquid level height in real time, one-way valve is opened and is re-fed to one-way backflow valve pipe by circulating pump and reflux pipe after filtering slurry, into cyclone classifier, greatly improve sorting accuracy, avoid raw material waste, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of monoammonium phosphate, and more specifically, to a clear liquid-grade monoammonium phosphate vortex gradient crystallization separator. Background Technology

[0002] Agricultural-grade monoammonium phosphate is produced by the slurry method. Phosphate rock powder, slurry, and sulfuric acid are reacted. The reaction slurry is then separated into liquid and solid to obtain wet-process dilute phosphoric acid. The dilute phosphoric acid is concentrated to obtain concentrated phosphoric acid. Liquid ammonia is used to neutralize the concentrated phosphoric acid. After the reaction, the concentrated phosphoric acid is sprayed onto the return material for granulation. Then, after drying, sieving, anti-caking coating, and cooling, granular products are obtained, which can be used for fertilizer production and other purposes.

[0003] Existing solid-liquid separation equipment uses cyclone separators, but during the raw material processing, large particles and impurities are ejected, carrying usable slurry. To further improve the utilization rate of raw materials and reduce production costs, a clear liquid-grade monoammonium phosphate cyclone gradient crystallization separator is proposed to solve the above problems. Utility Model Content

[0004] To overcome the waste caused by the fact that the material discharged from the hydrocyclone separator carries some fine slurry, the present invention provides a clear liquid grade monoammonium phosphate hydrocyclone gradient crystallization separator, including a reflux separation section. A filter screen is detachably installed inside the reflux separation section. A mounting frame is fixedly installed on the top of the reflux separation section. A hydrocyclone separator is inserted and installed at the center of the mounting frame. A one-way reflux valve pipe is fixedly installed on the side wall of the hydrocyclone separator. A solenoid valve is fixedly installed on the inner wall of the reflux sorting section. A circulation pump is fixedly connected to one end of the solenoid valve away from the reflux sorting section. A reflux pipe is fixedly connected to the outlet of the circulation pump. The other end of the reflux pipe is fixedly connected to a one-way reflux valve pipe. A liquid level sensor is fixedly installed on the side wall of the reflux sorting section. The sensing probe of the liquid level sensor penetrates the side wall of the reflux sorting section and extends into the interior of the reflux sorting section.

[0005] Preferably, the reflux sorting section includes a sorting frame, an overlap seat is fixedly installed on the inner wall of the sorting frame, the filter screen is movably installed on the top of the overlap seat, and the mounting bracket is fixedly installed on the top of the sorting frame.

[0006] Preferably, the sensing probe of the liquid level sensor penetrates the side wall of the sorting frame and extends into the interior of the sorting frame, and the solenoid valve is fixedly installed on the inner wall of the sorting frame.

[0007] Preferably, the cyclone separator includes a main pipe, which is inserted and installed at the center of the mounting frame. An underflow pipe is fixedly installed at the bottom of the main pipe, an overflow pipe is fixedly installed inside the main pipe, and a feed pipe is fixedly installed on the side of the main pipe away from the one-way return valve pipe.

[0008] Preferably, an electric push rod is fixedly installed at the bottom of the sorting frame.

[0009] Preferably, a load-bearing component is fixedly installed at the bottom of the sorting frame.

[0010] Preferably, the load-bearing component includes an outer cylinder, a spring seat is fixedly installed inside the outer cylinder, a telescopic spring is fixedly installed inside the spring seat, a connecting rod is fixedly connected to one end of the telescopic spring away from the spring seat, and the other end of the connecting rod is connected to the bottom of the sorting frame.

[0011] Preferably, the outer wall of the sorting frame is equipped with a controller, and the solenoid valve, circulating pump and liquid level sensor are all electrically connected to the controller.

[0012] Beneficial effects: The beneficial effects of adopting the technical solution of this utility model are as follows: (1) By setting a reflux separation section below the main pipe and the underflow pipe, the reflux separation section can receive the slurry impurity mixture thrown out of the underflow pipe. At the same time, a filter screen is also set up inside the reflux separation section for secondary filtration. After sedimentation, the slurry part in the mixture will be gradually filtered out. At the same time, a liquid level sensor is set up to monitor the liquid level in real time. When the preset height is reached, the one-way valve opens and the filtered slurry is transported back to the one-way reflux valve pipe through the circulation pump and the reflux pipe into the hydrocyclone separator. This greatly improves the separation accuracy, avoids the waste of raw materials, and reduces production costs.

[0013] (2) An electric push rod is installed at the bottom of the reflux sorting section to control the lifting and lowering of the reflux sorting section. The filter screen is installed in the reflux sorting section by overlapping. After there is enough space, the filter screen can be easily removed for cleaning or replacement. It has the characteristics of easy maintenance, thereby reducing downtime and improving production efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of the cyclone separator of this utility model; Figure 3 This is a structural cross-sectional view of the sorting frame of this utility model; Figure 4 This is a structural cross-sectional view of the load-bearing component of this utility model.

[0016] In the diagram: 1. Reflux sorting section; 100. Sorting frame; 101. Overlap seat; 2. Filter screen; 3. Mounting bracket; 4. Circulation pump; 5. Liquid level sensor; 6. Cyclone separator; 60. Main pipe; 61. Underflow pipe; 62. Feed pipe; 63. Overflow pipe; 7. One-way reflux valve pipe; 8. Reflux pipe; 9. Electric push rod; 11. Solenoid valve; 12. Load-bearing component; 120. Outer cylinder; 121. Spring seat; 122. Telescopic spring; 123. Connecting rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. The specific embodiments are as follows: like Figures 1 to 3As shown, a clear liquid grade monoammonium phosphate cyclone gradient crystallization separator includes a reflux separation section 1. A filter screen 2 is detachably installed inside the reflux separation section 1. A mounting frame 3 is fixedly installed on the top of the reflux separation section 1. A cyclone separator 6 is inserted and installed at the center of the mounting frame 3. A one-way reflux valve pipe 7 is fixedly installed on the side wall of the cyclone separator 6. A solenoid valve 11 is fixedly installed on the inner wall of the reflux separation section 1. A circulation pump 4 is fixedly connected to the end of the solenoid valve 11 away from the reflux separation section 1. A reflux pipe 8 is fixedly connected to the outlet of the circulation pump 4. The other end of the reflux pipe 8 is fixedly connected to the one-way reflux valve pipe 7. The reflux separation... A liquid level sensor 5 is fixedly installed on the side wall of section 1. The sensing probe of the liquid level sensor 5 penetrates through the side wall of the reflux sorting section 1 and extends into the interior of the reflux sorting section 1. After the material passes through the hydrocyclone separator 6 for the first screening, the screened material discharged will enter the reflux sorting section 1 for secondary screening and sedimentation. The reflux sorting section 1 is equipped with a liquid level sensor 5 to monitor the material volume and height, as well as a one-way valve 11 and a circulation pump 4 responsible for circulation. The circulating material will re-enter the hydrocyclone separator 6 through the one-way reflux valve pipe 7 and undergo secondary screening together with the new material, thereby improving the sorting efficiency and reducing the waste of raw materials. It should be noted that the reflux sorting section 1 includes a sorting frame 100, with a connecting seat 101 fixedly installed on the inner wall of the sorting frame 100. A filter screen 2 is movably installed on the top of the connecting seat 101, and a mounting bracket 3 is fixedly installed on the top of the sorting frame 100. The sensing probe of the liquid level sensor 5 penetrates the side wall of the sorting frame 100 and extends into the interior of the sorting frame 100. A solenoid valve 11 is fixedly installed on the inner wall of the sorting frame 100, and a controller is provided on the outer wall of the sorting frame 100. The solenoid valve 11, the circulating pump 4, and the liquid level sensor 5 are all connected to the controller. The controller is electrically connected, and the filter screen 2 can perform secondary sorting on the material thrown out of the cyclone separator 6, so that large particles of impurities are trapped above the filter screen 2, while liquids such as fine slurry pass through the filter screen 2 into the sorting frame 100. The liquid level is detected in real time by the liquid level sensor 5. When the liquid level reaches the detection height, the controller controls the electrically connected equipment to start, and the solenoid valve 11 is opened so that the circulating pump 4 can extract and pressurize the sorted fine slurry and put it back into the cyclone separator 6 through the return pipe 8 and the one-way return valve pipe 7, thereby improving the utilization rate of raw materials. In addition, the hydrocyclone separator 6 includes a main pipe 60, which is inserted and installed in the center of the mounting frame 3. An underflow pipe 61 is fixedly installed at the bottom of the main pipe 60, and an overflow pipe 63 is fixedly installed inside the main pipe 60. A feed pipe 62 is fixedly installed on the side of the main pipe 60 away from the one-way return valve pipe 7. After the material enters the hydrocyclone separator 6, it forms a vortex under centrifugal action. After centrifugal motion, larger and heavier particles and impurities will be thrown to the outer area to hit the inner wall of the main pipe 60 and gradually discharged downward through the underflow pipe 61, while the lighter slurry will be discharged upward through the overflow pipe 63 and discharged from the main pipe 60, thereby achieving the separation effect.

[0019] like Figure 1 and 4 As shown, an electric push rod 9 is fixedly installed at the bottom of the sorting frame 100, and a load-bearing component 12 is fixedly installed at the bottom of the sorting frame 100. The load-bearing component 12 includes an outer cylinder 120, a spring seat 121 is fixedly installed inside the outer cylinder 120, and a telescopic spring 122 is fixedly installed inside the spring seat 121. A connecting rod 123 is fixedly connected to one end of the telescopic spring 122 away from the spring seat 121, and the other end of the connecting rod 123 is connected to the bottom of the sorting frame 100. The bottom of the sorting frame 100 is provided with an electric push rod 9 and a load-bearing component 12. Since the filter screen 2 needs to be cleaned regularly to remove impurities, with the overflow pipe 63 and the feed pipe 62 connected to the corresponding equipment, the detachable return pipe 8 can be removed and the sorting frame 100 can be lowered away from the main pipe 60 under the drive of the electric push rod 9, so that there is enough space to remove the filter screen 2 for cleaning or replacement. The load-bearing component 12 plays a role in coordinating lifting and providing balance and load-bearing.

[0020] Working principle: After initial sorting through the main pipe 60, the refined pulp will first flow out from the overflow pipe 63, while some usable raw materials and impurities will enter the sorting box 100 for secondary sorting. After sedimentation through the filter screen 2 and continuous accumulation of new mixture, a certain amount will gradually form. After the pulp after secondary filtration accumulates to the preset value, it will re-enter the main pipe 60 through the solenoid valve 11, the circulation pump 4, the return pipe 8 and the one-way return valve pipe 7, and mix with new materials for a new round of sorting, reducing the waste of raw materials.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clear liquid-grade monoammonium phosphate cyclone gradient crystallization separator, characterized in that, It includes a reflux sorting section (1), a filter screen (2) is detachably installed inside the reflux sorting section (1), a mounting bracket (3) is fixedly installed on the top of the reflux sorting section (1), a cyclone separator (6) is inserted and installed at the center of the mounting bracket (3), and a one-way reflux valve pipe (7) is fixedly installed on the side wall of the cyclone separator (6). A solenoid valve (11) is fixedly installed on the inner wall of the reflux sorting section (1). A circulation pump (4) is fixedly connected to one end of the solenoid valve (11) away from the reflux sorting section (1). A reflux pipe (8) is fixedly connected to the outlet of the circulation pump (4). The other end of the reflux pipe (8) is fixedly connected to a one-way reflux valve pipe (7). A liquid level sensor (5) is fixedly installed on the side wall of the reflux sorting section (1). The sensing probe of the liquid level sensor (5) penetrates the side wall of the reflux sorting section (1) and extends into the interior of the reflux sorting section (1).

2. The clear liquid-grade monoammonium phosphate cyclone gradient crystallization separator according to claim 1, characterized in that, The reflux sorting section (1) includes a sorting frame (100), an overlap seat (101) is fixedly installed on the inner wall of the sorting frame (100), the filter screen (2) is movably installed on the top of the overlap seat (101), and the mounting bracket (3) is fixedly installed on the top of the sorting frame (100).

3. The clear liquid-grade monoammonium phosphate cyclone gradient crystallization separator according to claim 2, characterized in that, The sensing probe of the liquid level sensor (5) penetrates the side wall of the sorting frame (100) and extends into the interior of the sorting frame (100), and the solenoid valve (11) is fixedly installed on the inner wall of the sorting frame (100).

4. The clear liquid-grade monoammonium phosphate cyclone gradient crystallizer according to claim 3, characterized in that, The cyclone separator (6) includes a main pipe (60), which is inserted and installed at the center of the mounting frame (3). An underflow pipe (61) is fixedly installed at the bottom of the main pipe (60), an overflow pipe (63) is fixedly installed inside the main pipe (60), and a feed pipe (62) is fixedly installed on the side of the main pipe (60) away from the one-way return valve pipe (7).

5. The clear liquid-grade monoammonium phosphate cyclone gradient crystallizer according to claim 4, characterized in that, An electric push rod (9) is fixedly installed at the bottom of the sorting box (100).

6. The clear liquid-grade monoammonium phosphate cyclone gradient crystallizer according to claim 5, characterized in that, A load-bearing component (12) is fixedly installed at the bottom of the sorting box (100).

7. The clear liquid-grade monoammonium phosphate cyclone gradient crystallizer according to claim 6, characterized in that, The load-bearing component (12) includes an outer cylinder (120), a spring seat (121) is fixedly installed inside the outer cylinder (120), a telescopic spring (122) is fixedly installed inside the spring seat (121), a connecting rod (123) is fixedly connected to one end of the telescopic spring (122) away from the spring seat (121), and the other end of the connecting rod (123) is connected to the bottom of the sorting frame (100).

8. A clear liquid-grade monoammonium phosphate cyclone gradient crystallizer according to claim 7, characterized in that, The outer wall of the sorting box (100) is equipped with a controller, and the solenoid valve (11), the circulating pump (4) and the liquid level sensor (5) are all electrically connected to the controller.

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