Phosphorus pentachloride impurity screening device

Abstract

The utility model discloses a phosphorus pentachloride impurity screening device, and particularly relates to the technical field of phosphorus pentachloride production, the phosphorus pentachloride impurity screening device comprises a shell, the upper part of a clamping mechanism is movably connected with a feeding mechanism, and the exteriors of two fixing mechanisms are jointly and fixedly connected with a gas transmission mechanism; the sides, close to each other, of the two first limiting grooves are jointly connected with a second filtering mechanism in a sliding mode, and the sides, close to each other, of the two second limiting grooves are jointly connected with a third filtering mechanism in a sliding mode. According to the phosphorus pentachloride impurity screening device disclosed by the utility model, inert gas can be input into the inner cavity of the material conveying shell under the action of the gas conveying mechanism so as to prevent a fed yellow phosphorus raw material from sublimating, and metal impurities contained in the fed raw material can be screened through the second filtering mechanism; and meanwhile, fine impurities contained in the raw materials can be fully screened out through a third filtering mechanism, and the practicability and universality of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus pentachloride production, in particular to a phosphorus pentachloride impurity screening device. Background Art

[0002] Phosphorus pentachloride is a light yellow crystalline powder with a pungent odor. It is easy to sublime and is mainly used as a chlorinating agent. It is mainly used as a chlorinating agent for alcohols, carboxylic acids, amides, aldehydes, ketones, and enols. It is used as a chlorinating agent and catalyst in organic synthesis. It is a raw material for the production of medicines, dyes, and chemical fibers. It is also a raw material for the production of chlorophosphonitrile and phosphorus oxychloride. Phosphorus pentachloride is made by the reaction of phosphorus trichloride and chlorine. The basic raw material for the production of phosphorus pentachloride is mainly yellow phosphorus. In order to improve the purity of the produced phosphorus pentachloride, the purity of the basic raw material yellow phosphorus needs to be improved.

[0003] When existing yellow phosphorus is often used as a basic raw material for producing phosphorus pentachloride, the impurities contained in the yellow phosphorus cannot be effectively filtered and screened out, resulting in a large amount of impurities, low purity of the yellow phosphorus, and low purity of the produced phosphorus pentachloride. Summary of the invention

[0004] The main purpose of the utility model is to provide a phosphorus pentachloride impurity screening device, which can effectively solve the problem that the impurities contained in yellow phosphorus cannot be effectively filtered and screened.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A phosphorus pentachloride impurity screening device comprises a shell, a clamping mechanism is threadedly connected to the middle of the upper end of the outer surface of the shell, a feeding mechanism is movably connected to the upper part of the clamping mechanism, a fixing mechanism is symmetrically fixedly connected to the middle of the outer surface of the shell, a gas transmission mechanism is commonly fixedly connected to the outside of two fixing mechanisms, a material conveying shell is fixedly connected to the inner cavity of the shell, a first limiting groove is symmetrically fixedly connected to the left and right sides of the upper inner cavity of the material conveying shell, a second limiting groove is symmetrically fixedly connected to the left and right sides of the lower inner cavity of the material conveying shell, a second filtering mechanism is slidably connected to the side of the two first limiting grooves close to each other, a third filtering mechanism is slidably connected to the side of the two second limiting grooves close to each other, a discharge pipe is fixedly connected to the lower end of the outer surface of the shell, and the upper inner cavity of the discharge pipe is communicated with the lower inner cavity of the material conveying shell.

[0007] Preferably, the clamping mechanism includes an externally threaded tube, a clamping groove is fixedly connected to the annular array on the upper end of the outer surface of the externally threaded tube, a first coarse-pore filter is fixedly connected to the bottom of the inner cavity of the externally threaded tube, and the lower part of the outer surface of the externally threaded tube is threadedly connected to the middle part of the upper end of the outer surface of the shell.

[0008] Preferably, the feeding mechanism comprises a conical feeding tube, a plurality of arc plates are fixedly connected to the lower end of the outer surface of the conical feeding tube in an annular array, and a plurality of the arc plates are movably connected to the inner cavities of a plurality of clamping grooves.

[0009] Preferably, the second filtering mechanism includes a second support frame, a plurality of magnetic strips are fixedly connected at intervals in the lower part of the inner cavity of the second support frame, a second filter screen is fixedly connected to the upper part of the inner cavity of the second support frame, and the outer surface of the second support frame is slidably connected to the inner cavity on one side where the two first limit grooves are close to each other.

[0010] Preferably, the third filtering mechanism comprises a third supporting frame, the inner cavity of the third supporting frame is fixedly connected with a third fine-mesh filter, and the outer surface of the third supporting frame is slidably connected to the inner cavity on one side where the two second limiting grooves are close to each other.

[0011] Preferably, the fixing mechanism comprises a fixing frame, and the left and right parts of the outer surface of the fixing frame are both symmetrically fixedly connected with fixing rings front and back, and the inner surface of the fixing frame is fixedly connected to the outer surface of the shell.

[0012] Preferably, the gas delivery mechanism includes a gas delivery pipe, and the left and right sides of the outer surface of the gas delivery pipe are fixedly connected with diversion pipes symmetrically front and back, and the outer surfaces of the four diversion pipes are fixedly connected with nozzles on one side close to the middle of the shell cavity, and the four diversion pipes are respectively fixedly connected to the corresponding fixing ring cavities.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model can fix the feeding mechanism through the clamping mechanism and can preliminarily filter the large particle impurities contained in the put-in raw materials. The feeding mechanism facilitates the putting of the raw materials. The fixing mechanism can fix the gas transmission mechanism, and under the action of the gas transmission mechanism, inert gas can be input into the inner cavity of the feeding shell to prevent the put-in yellow phosphorus raw materials from sublimating, thereby improving the practicability of the device. The second filtering mechanism can screen out the metal impurities contained in the put-in raw materials, and the third filtering mechanism can fully screen out the fine impurities contained in the raw materials, thereby improving the practicability and universality of the device.

[0015] The utility model transmits the inert gas connected to the external gas supply equipment to the inner cavities of a plurality of shunt pipes connected thereto through the gas transmission pipe, and then the inert gas is finally transmitted to the inner cavity of the entire material delivery shell through a plurality of nozzles, thereby effectively avoiding the phenomenon that the yellow phosphorus itself is easily sublimated when in contact with the air due to its own properties, and improving the practicability and universality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the clamping mechanism and feeding mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the second filtering mechanism and the third filtering mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the fixing mechanism and the gas transmission mechanism of the utility model.

[0020] In the figure: 1. Shell; 2. Clamping mechanism; 21. Externally threaded pipe; 22. Clamping groove; 23. First coarse-pore filter; 3. Feeding mechanism; 31. Conical feeding pipe; 32. Arc plate; 4. Fixing mechanism; 41. Fixing frame; 42. Fixing ring; 5. Gas delivery mechanism; 51. Gas delivery pipe; 52. Diverter pipe; 53. Injector head; 6. Feeding shell; 61. First limiting groove; 62. Second limiting groove; 7. Second filtering mechanism; 71. Second supporting frame; 72. Magnetic strip; 73. Second filter; 8. Third filtering mechanism; 81. Third supporting frame; 82. Third fine-pore filter; 9. Discharge pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1As shown, a phosphorus pentachloride impurity screening device comprises a shell 1, a clamping mechanism 2 is threadedly connected to the middle of the upper end of the outer surface of the shell 1, which can fix the feeding mechanism 3 and filter the large particles contained in the raw materials. The upper part of the clamping mechanism 2 is movably connected to the feeding mechanism 3, which can facilitate the feeding of the raw materials. The middle of the outer surface of the shell 1 is symmetrically fixedly connected with a fixing mechanism 4, which can fix the gas transmission mechanism 5. The two fixing mechanisms 4 are fixedly connected to the gas transmission mechanism 5 on the outside, which can input inert gas into the inner cavity of the feeding shell 6 to prevent the sublimation of the raw materials. The shell 1 A feed shell 6 is fixedly connected to the inner cavity, and a first limiting groove 61 is symmetrically fixedly connected to the left and right sides of the upper inner cavity of the feed shell 6, and a second limiting groove 62 is symmetrically fixedly connected to the left and right sides of the lower inner cavity of the feed shell 6. A second filtering mechanism 7 is slidably connected to one side where the two first limiting grooves 61 are close to each other, so as to screen out metal impurities contained in the raw materials fed in, and a third filtering mechanism 8 is slidably connected to one side where the two second limiting grooves 62 are close to each other, so as to fully screen out fine impurities contained in the raw materials. A discharge pipe 9 is fixedly connected to the lower end of the outer surface of the shell 1, and the upper inner cavity of the discharge pipe 9 is communicated with the lower inner cavity of the feed shell 6.

[0023] In order to achieve the purpose of fixing the feeding mechanism 3 and filtering the large particles contained in the raw materials, refer to Figure 2 The clamping mechanism 2 includes an external threaded tube 21, and a clamping groove 22 is fixedly connected in a circular array on the upper end of the outer surface of the external threaded tube 21, which can fix the conical feeding tube 31 by inserting a plurality of arc plates 32 into the corresponding inner cavity of the clamping groove 22. A first coarse-pore filter 23 is fixedly connected to the bottom of the inner cavity of the external threaded tube 21, which can preliminarily filter the large particles contained in the yellow phosphorus raw material, and the lower part of the outer surface of the external threaded tube 21 is threadedly connected to the middle part of the upper end of the outer surface of the shell 1.

[0024] In order to facilitate the placement of raw materials, refer to Figure 2 The feeding mechanism 3 includes a conical feeding tube 31, which can prevent the material from being easily scattered to the ground during the feeding process. A plurality of arc plates 32 are fixedly connected in an annular array at the lower end of the outer surface of the conical feeding tube 31, and the plurality of arc plates 32 are movably connected to the inner cavities of the plurality of clamping grooves 22.

[0025] In order to achieve the purpose of screening out the metal impurities contained in the raw materials, refer to Figure 3The second filtering mechanism 7 includes a second supporting frame 71, a plurality of magnetic strips 72 are fixedly connected to the lower part of the inner cavity of the second supporting frame 71 at intervals, and a second filter screen 73 is fixedly connected to the upper part of the inner cavity of the second supporting frame 71, which can cooperate with the plurality of magnetic strips 72 to filter and adsorb impurities contained in the yellow phosphorus raw material, and the outer surface of the second supporting frame 71 is slidably connected to the inner cavity on one side where the two first limiting grooves 61 are close to each other.

[0026] In order to fully screen out the fine impurities contained in the raw materials, refer to Figure 3 The third filtering mechanism 8 includes a third supporting frame 81, and a third fine-pore filter screen 82 is fixedly connected to the inner cavity of the third supporting frame 81, which can screen out fine impurities contained in the yellow phosphorus raw material filtered by the first coarse-pore filter screen 23 and the second filter screen 73, and the outer surface of the third supporting frame 81 is slidably connected to the inner cavity on one side where the two second limiting grooves 62 are close to each other.

[0027] In order to achieve the purpose of fixing the gas delivery mechanism 5, refer to Figure 4 The fixing mechanism 4 includes a fixing frame 41, and the left and right parts of the outer surface of the fixing frame 41 are symmetrically fixedly connected with fixing rings 42, which can fix the corresponding shunt pipe 52, and the inner surface of the fixing frame 41 is fixedly connected to the outer surface of the shell 1.

[0028] In order to achieve the purpose of inputting inert gas into the inner cavity of the feed shell 6 to prevent the sublimation of the raw materials put in, refer to Figure 4 The gas delivery mechanism 5 includes a gas delivery pipe 51, and the left and right sides of the outer surface of the gas delivery pipe 51 are symmetrically fixedly connected with diversion pipes 52. The outer surfaces of the four diversion pipes 52 are fixedly connected with nozzles 53 on one side close to the middle of the inner cavity of the shell 1, and the four diversion pipes 52 are respectively fixedly connected to the corresponding inner cavities of the fixing ring 42.

[0029] The input end of the gas pipe 51 can be connected to an external gas supply device, and after being transported through the gas pipe 51, the gas enters the inner cavity of the diversion pipe 52 connected thereto, and is finally transported to the inner cavity of the material delivery shell 6 through the corresponding nozzle 53, thereby preventing the sublimation of the raw materials after contact with the air by inputting a sufficient amount of inert gas.

[0030] The working principle of the utility model is as follows: the yellow phosphorus raw material, which is often used as a basic raw material for producing phosphorus pentachloride, is transported to the inner cavity of the feed shell 6 through the conical feeding pipe 31. During this period, the large particle impurities contained in the yellow phosphorus raw material will be filtered when passing through the first coarse-pore filter 23. After the raw material entering the inner cavity of the feed shell 6 passes through a plurality of magnetic strips 72 and the second filter 73, the metal impurities contained in the raw material will be screened out, and then the raw material will continue to scatter downward to the upper surface of the third fine-pore filter 82. At this time, the fine impurities contained in the raw material will be successfully filtered by the third fine-pore filter 82, and the remaining raw material It will continue to scatter downward until it is discharged to the outside through the discharge pipe 9 and stored in a centralized manner. When the first coarse-pore filter 23 needs to be cleaned, the conical feeding pipe 31 can be pulled out from the upper part of the externally threaded tube 21, and then the externally threaded tube 21 can be rotated to remove it from the upper end of the outer surface of the shell 1. At this time, the large particle impurities filtered in the inner cavity of the externally threaded tube 21 can be dumped. When the second filter 73 and the third support frame 81 need to be cleaned, they can be directly slid out along the inner cavities of the two corresponding first limit grooves 61 and the second limit grooves 62 respectively.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A phosphorus pentachloride impurity screening device, comprising a housing (1), characterized in that: A clamping mechanism (2) is threadedly connected to the middle of the upper end of the outer surface of the shell (1), and a feeding mechanism (3) is movably connected to the upper part of the clamping mechanism (2). A fixing mechanism (4) is symmetrically fixedly connected to the middle of the upper and lower parts of the outer surface of the shell (1), and a gas transmission mechanism (5) is fixedly connected to the outside of the two fixing mechanisms (4). A material delivery shell (6) is fixedly connected to the inner cavity of the shell (1), and first limiting grooves (61) are symmetrically fixedly connected to the left and right sides of the upper inner cavity of the material delivery shell (6), and second limiting grooves (62) are symmetrically fixedly connected to the left and right sides of the lower inner cavity of the material delivery shell (6). A second filtering mechanism (7) is slidably connected to the two first limiting grooves (61) on the sides close to each other, and a third filtering mechanism (8) is slidably connected to the two second limiting grooves (62) on the sides close to each other. A discharge pipe (9) is fixedly connected to the lower end of the outer surface of the shell (1), and the upper inner cavity of the discharge pipe (9) is communicated with the lower inner cavity of the material delivery shell (6).

2. A phosphorus pentachloride impurity screening device according to claim 1, characterized in that: The clamping mechanism (2) comprises an externally threaded tube (21), the upper end of the outer surface of the externally threaded tube (21) being fixedly connected to a clamping groove (22) in an annular array, the bottom of the inner cavity of the externally threaded tube (21) being fixedly connected to a first coarse-pore filter screen (23), and the lower portion of the outer surface of the externally threaded tube (21) being threadedly connected to the middle portion of the upper end of the outer surface of the shell (1).

3. A phosphorus pentachloride impurity screening device according to claim 2, characterized in that: The feeding mechanism (3) comprises a conical feeding tube (31), a plurality of arc plates (32) being fixedly connected in an annular array at the lower end of the outer surface of the conical feeding tube (31), and the plurality of arc plates (32) are movably connected to the inner cavities of a plurality of clamping grooves (22).

4. A phosphorus pentachloride impurity screening device according to claim 1, characterized in that: The second filtering mechanism (7) comprises a second supporting frame (71), a plurality of magnetic strips (72) are fixedly connected at intervals in the lower part of the inner cavity of the second supporting frame (71), a second filter screen (73) is fixedly connected in the upper part of the inner cavity of the second supporting frame (71), and the outer surface of the second supporting frame (71) is slidably connected to the inner cavity on one side of the two first limiting grooves (61) that are close to each other.

5. A phosphorus pentachloride impurity screening device according to claim 1, characterized in that: The third filtering mechanism (8) comprises a third supporting frame (81), the inner cavity of the third supporting frame (81) being fixedly connected with a third fine-pore filter screen (82), and the outer surface of the third supporting frame (81) being slidably connected with the inner cavities of one side of the two second limiting grooves (62) close to each other.

6. A phosphorus pentachloride impurity screening device according to claim 1, characterized in that: The fixing mechanism (4) comprises a fixing frame (41), the left and right parts of the outer surface of the fixing frame (41) are both symmetrically fixedly connected to fixing rings (42) in a front-to-back manner, and the inner surface of the fixing frame (41) is fixedly connected to the outer surface of the shell (1).

7. A phosphorus pentachloride impurity screening device according to claim 6, characterized in that: The gas delivery mechanism (5) comprises a gas delivery pipe (51), the left and right sides of the outer surface of the gas delivery pipe (51) are both symmetrically fixedly connected to the flow distribution pipes (52) in a front-to-back manner, the outer surfaces of the four flow distribution pipes (52) are each fixedly connected to a nozzle (53) on one side close to the middle of the inner cavity of the shell (1), and the four flow distribution pipes (52) are respectively fixedly connected to the inner cavity of the corresponding fixing ring (42).

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