Solid crystal material centrifugal device

Abstract

The utility model discloses a solid crystal material centrifugal device which comprises a centrifugal machine, a material input assembly, a separation liquid collecting container, a gas supply assembly, a gas outlet assembly, a liquid outlet assembly, a liquid inlet assembly, a liquid outlet assembly, a liquid outlet assembly, a liquid outlet assembly and a liquid outlet assembly, wherein the material input assembly and the separation liquid collecting container are respectively connected with the centrifugal machine; the gas supply assembly inputs protective gas into the centrifugal machine to prevent combustible gas in the centrifugal machine from combusting; the air supply assembly is connected with the centrifugal machine; the oxygen content detector is used for detecting the oxygen content in the centrifugal machine and is connected with the centrifugal machine; the controller is used for controlling the gas supply flow of the gas supply assembly according to a signal of the oxygen content detector and is electrically connected with the oxygen content detector and the gas supply assembly respectively. According to the utility model, the potential safety hazard that combustible gas is generated in the working process of the centrifugal machine can be eliminated.

Description

Technical Field

[0001] This utility model relates to the field of chemical crystal product preparation technology, specifically to a centrifuge device for solid crystal materials. Background Technology

[0002] Centrifuges are suitable for washing and separating solid and liquid phases of suspension media containing solid particles, as well as for separating solid and liquid phases of media containing crystalline solid phases. They are widely used in pharmaceutical, fine chemical, food and chemical industries.

[0003] Centrifuges can be used to separate solids ranging from small particles of 10 μm to large particles of several millimeters, and even fibrous materials. They can work well for suspensions with a solids content of 5% to 40%. However, when separating suspensions with small particles and low concentrations, the initial solids content of the filtrate is relatively high, and attention should be paid to the recovery and treatment of this solids.

[0004] When materials are fed into a centrifuge for solid-liquid separation, for ordinary materials, the centrifuge simply completes the solid-liquid separation. However, for some special chemical materials, flammable gases may be generated during centrifugation. Although the amount of flammable gas may be small, it can ignite if oxygen is mixed in, leading to a safety accident. Therefore, eliminating the safety hazards of centrifuges is a current challenge. Utility Model Content

[0005] This invention provides a centrifuge device for solid crystalline materials, which can eliminate the safety hazard of generating flammable gases during the operation of the centrifuge.

[0006] The technical solution to the above problem is as follows:

[0007] A centrifugal device for solid crystalline materials includes a centrifuge, a material input component, and a separation liquid collection container, wherein the material input component and the separation liquid collection container are respectively connected to the centrifuge, and further includes:

[0008] A gas supply assembly that introduces protective gas into the centrifuge to prevent the combustion of combustible gases inside the centrifuge; the gas supply assembly is connected to the centrifuge.

[0009] An oxygen content detector is used to detect the oxygen content inside a centrifuge. The oxygen content detector is connected to the centrifuge.

[0010] The controller, which controls the air supply volume of the gas supply component based on the signal from the oxygen content detector, is electrically connected to both the oxygen content detector and the gas supply component.

[0011] Furthermore, the material input component includes a pipe and a first valve, with one end of the pipe connected to the first valve and the other end of the first valve connected to the centrifuge.

[0012] Furthermore, the gas supply assembly includes a nitrogen storage device and a first electric valve. The output end of the nitrogen storage device is connected to the first electric valve, and the first electric valve is connected to the centrifuge.

[0013] Furthermore, it also includes an air extraction assembly for evacuating air from the centrifuge. The air extraction assembly includes a second valve and an air extraction pump. One end of the second valve is connected to the centrifuge, and the other end of the second valve is connected to the air extraction pump.

[0014] Furthermore, the extraction assembly also includes a buffer tank, a first vent valve, and a first exhaust gas vent absorber. The buffer tank is located between the second valve and the extraction pump. The other end of the second valve is connected to the buffer tank. The buffer tank is connected to the extraction pump. The first vent valve is connected to the buffer tank. The first exhaust gas vent absorber is connected to the first vent valve.

[0015] Furthermore, it also includes a venting unit for venting the gas inside the centrifuge. The venting unit includes a venting valve, a flame arrester, and a second tail gas venting absorber. One end of the venting valve is connected to the centrifuge, and the other end of the venting valve is connected to the flame arrester. The flame arrester is connected to the second tail gas venting absorber.

[0016] In this invention, nitrogen is used as a protective gas and introduced into the centrifuge. After the solid crystalline material and liquid enter the centrifuge through the pipe and the first valve, the first valve is closed and the first electric valve is opened. The nitrogen in the nitrogen storage is then introduced into the centrifuge. Through the protective effect of nitrogen, the combustible gas separated from the liquid during the operation of the centrifuge is prevented from burning, thereby eliminating safety hazards. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a centrifuge device for solid crystalline materials.

[0018] Labels in the attached diagram:

[0019] Centrifuge 1, Separated liquid collection container 2, Third valve 3, Oxygen content detector 4, Controller 5, Pipeline 6, First valve 7, Nitrogen storage device 8, First electric valve 9, Second valve 10, Vacuum pump 11, Buffer tank 12, First vent valve 12a, First tail gas vent absorber 13, Vent valve 14, Flame arrester 15, Second tail gas vent absorber 16, First cleaning agent supplier 17, Fourth valve 18, Second electric valve 19, Fifth valve 20, Second cleaning agent supplier 21, Sixth valve 22, Third electric valve 23. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components, unless otherwise explicitly limited.

[0024] like Figure 1 As shown, the solid crystalline material centrifugation device of this utility model includes a centrifuge 1, a material input component, a separation liquid collection container 2, an air supply component, an oxygen content detector 4, and a controller 5. The following is a detailed description of each part and the relationship between them.

[0025] The material input component is connected to centrifuge 1. The material input component includes pipe 6 and a first valve 7. Pipe 6 is connected to the crystallization vessel (not shown in the figure), and one end of pipe 6 is connected to the first valve 7. The other end of the first valve 7 is connected to centrifuge 1. After the material completes crystallization in the crystallization vessel, the first valve 7 is opened. The solid crystalline material and liquid in the crystallization vessel enter the centrifuge 1 through pipe 6 and the first valve 7. When the centrifuge 1 is working, it performs solid-liquid separation on the solid crystalline material and the liquid.

[0026] The separation liquid collection container 2 is connected to the centrifuge 1. A third valve 3 is installed between the separation liquid collection container 2 and the centrifuge 1. When it is necessary to release the liquid separated from the centrifuge 1, the third valve 3 is opened, and the liquid separated from the centrifuge 1 is received through the separation liquid collection container 2.

[0027] A gas supply assembly supplies protective gas to centrifuge 1 to prevent the combustion of flammable gases inside centrifuge 1. The gas supply assembly is connected to centrifuge 1. In this embodiment, the gas supply assembly includes a nitrogen storage device 8 and a first electric valve 9. The output end of the nitrogen storage device 8 is connected to the first electric valve 9, and the first electric valve 9 is connected to centrifuge 1. In this embodiment, nitrogen is used as the protective gas. After solid crystalline materials and liquids enter centrifuge 1 through pipe 6 and the first valve 7, the first valve 7 is closed, and the first electric valve 9 is opened. Nitrogen from the nitrogen storage device 8 is supplied to centrifuge 1. Through the protective effect of nitrogen, the combustion of flammable gases separated from the liquid during centrifuge 1's operation is prevented, thereby eliminating safety hazards.

[0028] Oxygen content detector 4 is used to detect the oxygen content inside centrifuge 1. Oxygen content detector 4 is connected to centrifuge 1. Controller 5 controls the air supply volume of the air supply component based on the signal from oxygen content detector 4. Controller 5 is electrically connected to both oxygen content detector 4 and the air supply component. In this embodiment, controller 5 is preferably a PLC. The first electric valve 9 is connected to controller 5, and the opening degree of the first electric valve 9 is controlled by controller 5.

[0029] When the oxygen content detector 4 detects that the oxygen content inside the centrifuge 1 exceeds the set value, the controller 5 controls the opening of the first electric valve 9 to increase the amount of nitrogen input into the centrifuge 1, thereby reducing the oxygen concentration. Through the linkage between the oxygen content detector 4, the controller 5, and the first electric valve 9, the safety hazard is further eliminated.

[0030] This embodiment also includes a vacuum assembly for evacuating air from the centrifuge 1. The vacuum assembly includes a second valve 10 and a vacuum pump 11. One end of the second valve 10 is connected to the centrifuge 1, and the other end of the second valve 10 is connected to the vacuum pump 11. The centrifuge 1 is equipped with a pressure sensor 1a for detecting the internal pressure of the centrifuge 1. When the internal pressure of the centrifuge 1 exceeds a set value, the second valve 10 and the vacuum pump 11 are opened. Through the action of the vacuum pump 11, air is evacuated from the centrifuge 1, thereby reducing the detected internal pressure of the centrifuge 1. At the same time, the combustible gas inside the centrifuge 1 is also removed by the vacuum assembly. Therefore, the suction effect of the vacuum assembly can increase safety performance.

[0031] The extraction assembly also includes a buffer tank 12, a first vent valve 12a, and a first tail gas vent absorber 13. The buffer tank 12 is located between the second valve 10 and the extraction pump 11. The other end of the second valve 10 is connected to the buffer tank 12, and the buffer tank 12 is connected to the extraction pump 11. The first vent valve 12a is connected to the buffer tank 12, and the first tail gas vent absorber 13 is connected to the first vent valve 12a. The gas extracted from the centrifuge 1 first enters the buffer tank 12. Under the action of the extraction pump 11, the gas in the buffer tank 12 is extracted. If it is necessary to accelerate the release of the gas in the buffer tank 12, the first vent valve 12a is opened, and the gas enters the first tail gas vent absorber 13 through the first vent valve 12a.

[0032] It also includes a venting unit for venting gas inside centrifuge 1. The venting unit includes a venting valve 14, a flame arrester 15, and a second tail gas venting absorber 16. One end of the venting valve 14 is connected to centrifuge 1, and the other end of the venting valve 14 is connected to the flame arrester 15. The flame arrester 15 is connected to the second tail gas venting absorber 16. When it is necessary to accelerate the release of gas inside centrifuge 1, the venting valve 14 is opened, and the gas passes through the venting valve 14 and the flame arrester 15 in sequence into the second tail gas venting absorber 16.

[0033] This utility model also includes a cleaning unit for cleaning the centrifuge 1. The cleaning unit includes a first cleaning supply unit and a second cleaning supply unit. The first cleaning supply unit includes a first cleaning agent supplier 17, a fourth valve 18, a second electric valve 19, and a fifth valve 20. The output end of the first cleaning agent supplier 17 is connected to one end of the fourth valve 18, the other end of the fourth valve 18 is connected to one end of the second electric valve 19, the other end of the second electric valve 19 is connected to one end of the fifth valve 20, and the other end of the fifth valve 20 is connected to the centrifuge 1. The second electric valve 19 is also connected to the controller 5.

[0034] The second cleaning supply unit includes a second cleaning agent supply unit 21, a sixth valve 22, and a third electric valve 23. The output end of the second cleaning agent supply unit 21 is connected to one end of the sixth valve 22, the other end of the sixth valve 22 is connected to one end of the third electric valve 23, the other end of the third electric valve 23 is connected to one end of the fifth valve 20, and the third electric valve 23 is also connected to the controller 5.

[0035] When centrifuge 1 needs to be cleaned, the fourth valve 18, the second electric valve 19, and the fifth valve 20 are opened, while the sixth valve 22 and the third electric valve 23 are closed. The first cleaning agent in the first cleaning agent supply 17 enters the centrifuge 1 through the fourth valve 18, the second electric valve 19, and the fifth valve 20, thereby cleaning the centrifuge 1. Alternatively, the sixth valve 22, the third electric valve 23, and the fifth valve 20 are opened, while the fourth valve 18 and the second electric valve 19 are closed. The second cleaning agent in the second cleaning agent supply 21 enters the centrifuge 1 through the sixth valve 22, the third electric valve 23, and the fifth valve 20, thereby cleaning the centrifuge 1. The first and second cleaning agents can be two different cleaning agents, and the appropriate cleaning agent is selected based on the solid crystalline material inside the centrifuge 1.

Claims

1. A centrifugal device for solid crystalline materials, comprising a centrifuge (1), a material input component, and a separation liquid collection container (2), wherein the material input component and the separation liquid collection container (2) are respectively connected to the centrifuge (1), characterized in that, Also includes: A gas supply assembly that supplies protective gas to centrifuge (1) to prevent the combustion of combustible gas inside centrifuge (1) is connected to centrifuge (1); An oxygen content detector (4) is used to detect the oxygen content inside a centrifuge (1), and the oxygen content detector (4) is connected to the centrifuge (1). The controller (5) controls the flow rate of the gas supply component based on the signal from the oxygen content detector (4). The controller (5) is electrically connected to the oxygen content detector (4) and the gas supply component, respectively.

2. The centrifuge device for solid crystalline materials according to claim 1, characterized in that, The material input component includes a pipe (6) and a first valve (7). One end of the pipe (6) is connected to the first valve (7), and the other end of the first valve (7) is connected to the centrifuge (1).

3. The centrifuge device for solid crystalline materials according to claim 1, characterized in that, The gas supply assembly includes a nitrogen storage device (8) and a first electric valve (9). The output end of the nitrogen storage device (8) is connected to the first electric valve (9), and the first electric valve (9) is connected to the centrifuge (1).

4. The centrifuge device for solid crystalline materials according to any one of claims 1 to 3, characterized in that, It also includes an air extraction assembly for extracting air from the centrifuge (1). The air extraction assembly includes a second valve (10) and an air pump (11). One end of the second valve (10) is connected to the centrifuge (1), and the other end of the second valve (10) is connected to the air pump (11).

5. The centrifuge device for solid crystalline materials according to claim 4, characterized in that, The air extraction assembly also includes a buffer tank (12), a first vent valve (12a), and a first exhaust gas vent absorber (13). The buffer tank (12) is located between the second valve (10) and the air extraction pump (11). The other end of the second valve (10) is connected to the buffer tank (12). The buffer tank (12) is connected to the air extraction pump (11). The first vent valve (12a) is connected to the buffer tank (12). The first exhaust gas vent absorber (13) is connected to the first vent valve (12a).

6. The centrifuge device for solid crystalline materials according to claim 1, characterized in that, It also includes a venting unit for venting the gas inside the centrifuge (1). The venting unit includes a venting valve (14), a flame arrester (15), and a second tail gas venting absorber (16). One end of the venting valve (14) is connected to the centrifuge (1), and the other end of the venting valve (14) is connected to the flame arrester (15). The flame arrester (15) is connected to the second tail gas venting absorber (16).

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