Phosphorus pentasulfide unloader

Abstract

The phosphorus pentasulfide discharger comprises a shell, the shell sequentially comprises a feeding bin, a transfer bin and a discharging bin from top to bottom, one side face of the transfer bin is closed, and the other side face of the transfer bin is covered with a cover plate; the impeller is installed in the transfer bin through a rotating shaft, and one end of the rotating shaft penetrates through the closed side face of the transfer bin and is connected with the motor; and the multiple gas inlet bins penetrate through the side faces of the discharging bin correspondingly, and the gas inlet bins are connected with the nitrogen pipeline through pipelines and valves. According to the discharger, the multiple gas inlet bins connected with the nitrogen pipeline are arranged, and nitrogen in the nitrogen pipeline is introduced into the discharging bin, so that the oxygen content and the moisture content in the gas inlet bins are reduced, and the situation that phosphorus pentasulfide is hydrolyzed in the discharging process, is subjected to friction and then burns and breaks out of fire can be prevented.

Description

Technical Field

[0001] The present application relates to the technical field of material transfer, and in particular to a phosphorus pentasulfide unloader. Background Art

[0002] A star-shaped discharger is a common discharge device. During operation, the impeller rotates under negative pressure, continuously conveying material from the feed end to the feed pipe. Simultaneously, the impeller isolates the inner and outer areas, thus providing a seal. Star-shaped dischargers offer continuous operation, high efficiency, and high-temperature resistance, making them widely used in industries such as building materials, chemicals, and environmental protection.

[0003] Phosphorus pentasulfide is a key raw material for pesticide synthesis. It reacts with alcohols to produce sulfides, important phosphorus-containing intermediates that can be used to synthesize a variety of dithiophosphate pesticides. Factories typically use pneumatic conveying to process phosphorus pentasulfide, using star-shaped dischargers to transfer solid powder from storage silos to pneumatic conveying pipelines. However, due to its reactive nature, phosphorus pentasulfide is prone to ignition when exposed to flame or friction, and it easily decomposes due to moisture absorption. Therefore, precautions must be taken during the unloading and conveying process to prevent these hazards. Utility Model Content

[0004] The present application provides a phosphorus pentasulfide discharger to solve the problems in the above-mentioned background technology.

[0005] The present application provides a phosphorus pentasulfide discharger, comprising:

[0006] The shell includes a feeding bin, a transfer bin and a discharge bin from top to bottom. One side of the transfer bin is closed and the other side is covered by a cover plate;

[0007] The impeller is installed in the transfer bin through a rotating shaft, one end of the rotating shaft passes through a closed side of the transfer bin and is connected to the motor;

[0008] There are multiple air inlet bins, each of which is arranged through the side of the discharge bin. The air inlet bin is connected to the nitrogen pipeline through a valve through a pipeline.

[0009] Optionally, a guide cover is provided in the lower hopper, and the guide cover is tilted above the air inlet hopper.

[0010] Optionally, the air inlet chamber includes an air collecting chamber connected to the nitrogen pipeline, and an air outlet chamber communicated with the air collecting chamber;

[0011] In the air outlet cavity, a plurality of spacers are arranged in an array along the length direction of the air outlet cavity;

[0012] The output end of the air outlet cavity is a flat closing structure.

[0013] Optionally, a filter is provided in the air outlet cavity near the output end.

[0014] Optionally, a flange is provided at the upper end of the feed bin;

[0015] A dredging structure is fixed on the upper part of the feeding silo through connecting ribs.

[0016] Optionally, the dredging structure includes a driving device connected to the connecting rib and a material distribution cone connected to the power output end of the driving device, and the material distribution cone is arranged above the driving device;

[0017] The outer surface of the distribution cone is arrayed with a plurality of blades.

[0018] Optionally, a plurality of scrapers are provided on the inner wall of the transfer bin in opposite directions;

[0019] One end of the scraper is fixed to the inner wall of the transfer bin, and the other end extends toward the direction of the rotating shaft;

[0020] The scraper is made of flexible and bendable material.

[0021] The discharger of the present application is provided with multiple air inlet bins connected to the nitrogen pipeline, which introduce the nitrogen in the nitrogen pipeline into the discharge bin, thereby reducing the oxygen content and moisture content in the air inlet bin, and can prevent the hydrolysis of phosphorus pentasulfide during the discharge process and the occurrence of combustion and fire due to friction. It overcomes the disadvantages of the existing method of transporting phosphorus pentasulfide solid powder from the storage bin to the pneumatic conveying pipeline through a star-shaped discharger, which is prone to fire due to friction and easy to decompose due to moisture absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a phosphorus pentasulfide discharger provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the internal structure of a phosphorus pentasulfide discharger provided in one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the three-dimensional structure of a phosphorus pentasulfide discharger provided in one embodiment of the present application;

[0026] Figure 4 A schematic diagram of the connection between a phosphorus pentasulfide discharger and a nitrogen pipeline provided in one embodiment of the present application;

[0027] Figure 5A schematic diagram of the internal structure of a phosphorus pentasulfide discharger provided in another embodiment of the present application;

[0028] Figure 6 A schematic diagram of the internal structure of the air intake bin provided in one embodiment of the present application;

[0029] Figure 7 A schematic structural diagram of an air intake bin provided in another embodiment of the present application;

[0030] Figure 8 A schematic structural diagram of a phosphorus pentasulfide discharger provided in yet another embodiment of the present application;

[0031] Figure 9 A schematic structural diagram of a dredging structure provided in one embodiment of the present application;

[0032] Figure 10 This is a schematic structural diagram of a phosphorus pentasulfide discharger provided in yet another embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Casing; 2. Impeller; 3. Air inlet bin; 4. Dredging structure; 11. Feed bin; 12. Transfer bin; 13. Discharge bin; 21. Rotating shaft; 22. Motor; 30. Nitrogen pipeline; 31. Gas collecting chamber; 32. Gas outlet chamber; 41. Driving device; 42. Distributing cone; 43. Blades; 111. Flange; 112. Connecting ribs; 121. Cover plate; 122. Scraper; 131. Guide cover plate; 321. Spacer; 322. Filter screen. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0036] like Figures 1 to 4 As shown, the present application provides a phosphorus pentasulfide discharger, comprising:

[0037] The housing 1 includes, from top to bottom, a feed bin 11, a transfer bin 12, and a discharge bin 13. One side of the transfer bin 12 is closed, and the other side is covered by a cover plate 121.

[0038] The impeller 2 is installed in the transfer chamber 12 through the rotating shaft 21. One end of the rotating shaft 21 passes through a closed side of the transfer chamber 12 and is connected to the motor 22.

[0039] The air inlet bin 3 is provided with a plurality of air inlet bins 3 , which are respectively provided through the side of the discharge bin 13 , and the air inlet bin 3 is connected to the nitrogen pipeline 30 through a valve through a pipeline.

[0040] In the present application, the cover plate 121 seals the transfer bin 12 through a corresponding locking structure. When the impeller 2 needs to be replaced, maintained, or the interior of the shell 1 needs to be cleaned, the cover plate 121 can be opened to perform corresponding operations.

[0041] During use, the discharger is fixed below the storage bin, the discharge bin 13 is connected to a receiving device (such as a delivery pipeline), and the nitrogen in the nitrogen pipeline is introduced into the discharge bin 13 through the air inlet bin 3. The valve is adjusted to adjust the flow rate of nitrogen entering the discharge bin 13. Then, the motor 22 is turned on to rotate the impeller 2 on the rotating shaft 21, and the discharge port of the storage bin is opened to discharge the phosphorus pentasulfide in the storage bin into the feed bin 11. The rotating impeller 2 transfers the material to the discharge bin 13 and finally enters the corresponding receiving device for transfer.

[0042] The discharger of the present application is provided with multiple air inlet bins 3 connected to the nitrogen pipeline 30, which introduce the nitrogen in the nitrogen pipeline 30 into the discharge bin 13, thereby reducing the oxygen content and moisture content in the air inlet bin 3. This can prevent the hydrolysis of phosphorus pentasulfide during the discharge process and the occurrence of combustion and fire due to friction. It overcomes the disadvantages of the existing method of transporting phosphorus pentasulfide solid powder from the storage bin to the pneumatic conveying pipeline through a star-shaped discharger, which is prone to fire due to friction and easy to decompose due to moisture absorption.

[0043] like Figure 5 As shown, optionally, a guide cover plate 131 is provided in the lower material bin 13 , and the guide cover plate 131 is tiltedly arranged above the air inlet bin 3 .

[0044] In the present application, the guide cover 131 is provided to prevent the falling materials from falling at the outlet of the air inlet bin 3, thereby preventing the output end of the air inlet bin from being blocked.

[0045] like Figure 6 As shown, optionally, the air inlet chamber 3 includes an air collecting chamber 31 connected to the nitrogen pipeline 30, and an air outlet chamber 32 communicated with the air collecting chamber 31;

[0046] Inside the air outlet cavity 32 , a plurality of spacers 321 are arranged in an array along the length direction of the air outlet cavity 32 ;

[0047] The output end of the air outlet cavity 32 is a flat closing structure.

[0048] In the present application, a plurality of partitions 321 are provided in the air outlet cavity 32 to divide the air outlet cavity 32 into a plurality of small channels, so as to ensure that the gas can be distributed more evenly, and the output end of the air outlet cavity 32 is a flat closing structure, which can reduce the gas flow area, thereby increasing the gas flow rate.

[0049] like Figure 7 As shown, optionally, a filter screen 322 is provided in the air outlet cavity 32 near the output end.

[0050] In the present application, a filter screen 322 is provided in the air outlet cavity 32 near the output end, which can reduce the material from entering the air inlet bin 3 and causing blockage thereof. The setting of the filter screen 322 can also further disperse the nitrogen output from the air outlet cavity 32, making the nitrogen distribution more even.

[0051] like Figure 8 As shown, optionally, a flange 111 is provided at the upper end of the feed bin 11;

[0052] A dredging structure 4 is fixed to the upper inner portion of the feed bin 11 via connecting ribs 112 .

[0053] In the present application, the flange 111 can fix the discharger to the lower part of the corresponding storage bin, and the dredging structure 4 is provided to dredge when blockage occurs at the feed bin 11 to ensure smooth unloading.

[0054] like Figure 9 As shown, optionally, the dredging structure 4 includes a driving device 41 connected to the connecting rib 112 and a material distribution cone 42 connected to the power output end of the driving device 41, and the material distribution cone 42 is arranged above the driving device 41;

[0055] The outer surface of the distribution cone 42 is provided with a plurality of blades 43 in an array.

[0056] In the present application, when the discharge port of the storage bin is blocked and the material discharge is not smooth, the driving device 41 can be started to drive the dividing cone 42 to extend and retract (the driving device 41 is a cylinder or an electric cylinder, and the blades 43 are vertically arranged straight blades, such as rectangular ones) to clear the blockage, or drive the dividing cone 42 to rotate (the driving device 41 is a motor, and the blades are spiral blades to prevent the material from being squeezed too tightly and making the blades 43 unable to rotate, resulting in damage to the driving device 41), and the rotating blades 43 are used to clear the blockage; similarly, the driving device 41 can also be integrated with a cylinder and a motor at the same time to realize the extension and retraction and rotation of the dividing cone 42, and accordingly the blades 43 should also be set to a suitable type (such as spiral) according to actual needs.

[0057] like Figure 10 As shown, optionally, a plurality of scrapers 122 are relatively provided on the inner wall of the transfer bin 12;

[0058] One end of the scraper 122 is fixed to the inner wall of the transfer bin 12, and the other end extends toward the direction of the rotating shaft 21;

[0059] The scraper 122 is made of a flexible and bendable material.

[0060] In the present application, during use of the impeller 2, material powder is easily adhered to the end of the impeller 2, and long-term operation will cause the rotational load of the impeller 2 to increase. The scraper 122 provided scrapes off the powder adhered to the impeller 2 during the rotation of the impeller 2, thereby reducing the load of the impeller 2, and the relative arrangement of multiple scrapers 122 can further improve the scraping efficiency. The scraper 122 is made of a flexible material such as a corrosion-resistant polymer material, and can bend after contacting the impeller 2, thereby reducing the impact on the operation of the impeller 2.

[0061] The length of the scraper 122 matches the length of the blades on the impeller 2 .

[0062] A phosphorus pentasulfide discharger, the working process of which is as follows:

[0063] During use, the discharger is fixed to the bottom of the storage bin via the flange 111, and the discharge bin 13 is connected to a receiving device (such as a conveying pipeline) accordingly. The nitrogen in the nitrogen pipeline 30 is passed into the discharge bin 13 through the air inlet bin 3, and the flow rate of the nitrogen entering the discharge bin 13 is adjusted by a valve. Then, the motor 22 is turned on to drive the impeller 2 on the rotating shaft 21 to rotate, and the discharge port of the storage bin is opened to discharge the phosphorus pentasulfide in the storage bin into the feed bin 11. When the material falls from the storage bin and contacts the dredging structure 4, due to the action of gravity, the falling material is divided due to the impact when it contacts the material dividing cone 42 and blades 43 in the dredging structure 4, thereby reducing the possibility of blockage of the outlet when the block material falls. When the material falls into the feed bin 11, the rotating impeller 2 transfers the material to the discharge bin 13 and finally enters the corresponding receiving device for transfer. Moreover, during the use of the impeller 2, material powder is easily adhered to the end of the impeller 2, and long-term operation will cause the rotational load of the impeller 2 to increase. The scraper 122 is arranged to scrape off the powder adhered to the impeller 2 during the rotation of the impeller 2, thereby reducing the load of the impeller 2, and the relative arrangement of multiple scrapers 122 can further improve the scraping efficiency. The scraper 122 is made of a flexible material such as a corrosion-resistant polymer material, and can bend after contacting the impeller 2, thereby reducing the impact on the operation of the impeller 2.

[0064] When the discharge port of the storage bin is blocked and the material discharge is not smooth, the driving device 41 can be started to drive the material distribution cone 42 to extend and retract (the driving device 41 is a cylinder or an electric cylinder in this case) to clear the blockage, or the material distribution cone 42 can be driven to rotate (the driving device is a motor in this case) and the rotating blades 43 can be used to clear the blockage.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A phosphorus pentasulfide discharger, characterized in that: include: A housing (1), the housing (1) comprising, from top to bottom, an inlet bin (11), a transfer bin (12), and a discharge bin (13); one side of the transfer bin (12) is closed, and the other side is covered by a cover plate (121); An impeller (2), the impeller (2) being installed in the transfer bin (12) via a rotating shaft (21), one end of the rotating shaft (21) passing through a closed side surface of the transfer bin (12) and being connected to a motor (22); The air inlet bin (3) is provided with a plurality of air inlet bins (3), which are respectively provided through the side of the discharge bin (13), and the air inlet bin (3) is connected to the nitrogen pipeline (30) through a valve via a pipeline.

2. The phosphorus pentasulfide discharger according to claim 1, characterized in that: A flow guide cover plate (131) is provided in the lower material bin (13), and the flow guide cover plate (131) is arranged obliquely above the air inlet bin (3).

3. The phosphorus pentasulfide discharger according to claim 1, characterized in that: The air inlet chamber (3) comprises an air collecting chamber (31) connected to a nitrogen pipeline (30), and an air outlet chamber (32) communicating with the air collecting chamber (31); A plurality of spacers (321) are arranged in an array in the air outlet cavity (32) along the length direction of the air outlet cavity (32); The output end of the air outlet cavity (32) is a flat closing structure.

4. The phosphorus pentasulfide discharger according to claim 3, characterized in that: A filter screen (322) is provided in the air outlet cavity (32) near the output end.

5. The phosphorus pentasulfide discharger according to claim 1, characterized in that: The upper end of the feeding bin (11) is provided with a flange (111); A dredging structure (4) is fixed to the upper inner portion of the feed bin (11) via a connecting rib (112).

6. The phosphorus pentasulfide discharger according to claim 5, characterized in that: The dredging structure (4) comprises a driving device (41) connected to the connecting rib (112) and a material distribution cone (42) connected to the power output end of the driving device (41), and the material distribution cone (42) is arranged above the driving device (41); The outer surface of the distribution cone (42) is provided with a plurality of blades (43) in an array.

7. The phosphorus pentasulfide discharger according to any one of claims 1 to 6, characterized in that: A plurality of scrapers (122) are arranged opposite to each other on the inner wall of the transfer bin (12); One end of the scraper (122) is fixed to the inner wall of the transfer bin (12), and the other end extends in the direction of the rotating shaft (21); The scraper (122) is made of a flexible and bendable material.

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