Discharging centrifugal machine

Abstract

The utility model discloses a discharging centrifugal machine, which belongs to the technical field of discharging centrifugal machines and comprises a centrifugal machine tank body and a top cover for sealing the centrifugal machine tank body, the top cover is provided with a centrifugal machine gas inlet, and the bottom of the centrifugal machine tank body is provided with a centrifugal machine gas outlet. The centrifugal machine gas inlet is connected with a gas inlet pipeline, and the centrifugal machine gas outlet is connected with a gas outlet pipeline; the internal environment temperature of the centrifugal machine can be effectively controlled, the problems of material decomposition and the like caused by high temperature can be solved, and the centrifugal machine has the advantages of being high in heat exchange efficiency and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of unloading centrifuges, in particular to a unloading centrifuge. Background Art

[0002] Vertical bottom discharge centrifuge is widely used, especially in the chemical and pharmaceutical industries as one of the key separation equipment. The centrifuge drum rotates at high speed during use and stops working when a certain moisture content is reached according to the properties and requirements of the material.

[0003] During the high-speed rotation of the drum, friction with the air inside the centrifuge generates heat, causing the internal ambient temperature of the centrifuge to rise. If there is no external cooling measure, the internal temperature will continue to rise as the centrifuge runs longer. Overtemperature will affect the quality of the material and also pose certain safety hazards. The internal ambient temperature of the centrifuge is too high, the bearing temperature rises abnormally, and the bearing life is severely shortened in an overheated environment, affecting production efficiency. In response to the above problems, the current solution is to add a heat exchange jacket to the centrifuge casing to indirectly reduce the ambient and material temperature, but this cooling method has the problems of low heat exchange efficiency and high cost.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a discharging centrifuge, which can effectively control the internal environmental temperature of the centrifuge, reduce problems such as material decomposition caused by high temperature, and has the advantages of high heat exchange efficiency and low cost.

[0006] The utility model adopts the following technical scheme: a discharging centrifuge, comprising a centrifuge tank body and a top cover that seals the centrifuge tank body, the top cover is provided with a centrifuge air inlet, and the bottom of the centrifuge tank body is provided with a centrifuge gas outlet;

[0007] The centrifuge air inlet is connected to the air inlet pipeline, and the centrifuge gas outlet is connected to the air outlet pipeline.

[0008] Furthermore, a heat exchanger is connected between the air inlet pipeline and the air outlet pipeline;

[0009] The air inlet pipeline is provided with a driving device near the air outlet of the heat exchanger.

[0010] Furthermore, the air flow in and out of the heat exchanger is in bottom and out top, and the refrigerant in and out of the heat exchanger is in top and out bottom.

[0011] Furthermore, a gas-liquid outlet is provided at the bottom of the centrifuge tank, and the gas-liquid outlet is connected to a three-way pipe;

[0012] The three-way pipe has two outlets, one outlet is the centrifuge gas outlet, and the other outlet is the centrifuge filtrate outlet.

[0013] Furthermore, a temperature detection device is provided at the gas outlet of the heat exchanger and the gas outlet of the centrifuge.

[0014] Furthermore, the opening of the centrifuge gas outlet faces upward; the centrifuge gas outlet extends upward by 100-500 mm from the top of the intersection of the inlet and outlet of the three-way pipe.

[0015] Furthermore, a drum assembly is provided in the centrifuge tank, and the upper end of the drum assembly is provided on a liquid partition plate extending inwardly, and an opening is formed on the inner side of the liquid partition plate;

[0016] The centrifuge air inlet is arranged corresponding to the drum assembly and corresponding to the opening on the inner side of the liquid isolation plate.

[0017] Furthermore, a scraper device is installed on the top cover, and one end of the scraper of the scraper device passes through the opening on the inner side of the liquid isolation plate and extends into the drum assembly;

[0018] The centrifuge air inlet is arranged on a side of the scraper device close to the center of the centrifuge.

[0019] Furthermore, the centrifuge filtrate outlet extends horizontally or downwardly.

[0020] Furthermore, the heat exchanger has an air inlet and an air outlet, the air inlet of the heat exchanger is arranged at the lower part of the heat exchanger, and the air outlet of the heat exchanger is arranged at the upper part of the heat exchanger; the air inlet of the heat exchanger is connected to the air outlet pipeline, and the air outlet of the heat exchanger is connected to the air inlet pipeline;

[0021] The heat exchanger also has a refrigerant inlet and a refrigerant outlet, and the refrigerant inlet and the refrigerant outlet are both connected to the refrigerant system.

[0022] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0023] 1. The utility model is provided with an air circulation system to circulate air inside the centrifuge, control the internal ambient temperature of the centrifuge, ensure the material properties, reduce the safety hazards such as material decomposition caused by high temperature; at the same time, ensure the stable operation of the centrifuge.

[0024] 2. The airflow circulating in the airflow circulation system of the utility model can cool the centrifuge while increasing the filtrate separation speed and improving the work efficiency.

[0025] 3. The utility model arranges the driving device at the air flow outlet of the heat exchanger, and arranges the air inlet of the heat exchanger at the lower part, which can prevent the air flow from driving the filtrate into the air outlet pipeline and the interior of the heat exchanger.

[0026] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] In the figure,

[0029] 1-centrifuge tank, 2-top cover, 3-drum assembly, 4-scraper device, 5-liquid partition plate, 6-air inlet pipeline, 7-air outlet pipeline, 8-heat exchanger, 9-centrifuge air inlet, 10-gas-liquid outlet, 11-tee pipe, 12-centrifuge gas outlet, 13-centrifuge filtrate outlet, 14-refrigerant inlet, 15-refrigerant outlet, 16-driving device. DETAILED DESCRIPTION

[0030] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. Example

[0031] like Figure 1 As shown, the utility model provides a discharging centrifuge, including a centrifuge tank body 1 and a top cover 2 for sealing the centrifuge tank body; a drum assembly 3 is arranged in the centrifuge tank body 1, and the upper end of the drum assembly 3 is arranged on a liquid partition plate 5 extending inwardly, and an opening is formed on the inner side of the liquid partition plate 5.

[0032] A scraper device 4 is installed on the top cover 2 , and one end of the scraper of the scraper device 4 passes through an opening on the inner side of the liquid isolation plate 5 and extends into the drum assembly 3 .

[0033] The centrifuge tank body 1 is connected to an air circulation system, which can circulate the air flow in the centrifuge tank body 1 to control the internal temperature of the centrifuge.

[0034] The airflow circulation system comprises an air inlet pipeline 6 and an air outlet pipeline 7 , and a heat exchanger 8 is connected between the air inlet pipeline 6 and the air outlet pipeline 7 .

[0035] The top cover 2 is provided with a centrifuge air inlet 9 , and the centrifuge air inlet 9 is communicated with the air inlet pipeline 6 .

[0036] A gas-liquid outlet 10 is provided at the bottom of the centrifuge tank 1 , and the gas-liquid outlet 10 is connected to a three-way pipe 11 . The three-way pipe 11 has two outlets, namely a centrifuge gas outlet 12 and a centrifuge filtrate outlet 13 ; the centrifuge gas outlet 12 is connected to the gas outlet pipeline 7 .

[0037] Furthermore, the centrifuge air inlet 9 is arranged corresponding to the drum assembly 3 and is arranged corresponding to the opening on the inner side of the liquid isolation plate 5 .

[0038] Furthermore, the centrifuge air inlet 9 is arranged on a side of the scraper device 4 close to the center of the centrifuge to ensure a larger space and not affect the movement of various mechanisms of the centrifuge.

[0039] Furthermore, the opening of the centrifuge gas outlet 12 faces upward; the centrifuge gas outlet 12 extends upward from the top of the intersection of the inlet and outlet of the three-way pipe, and preferably, the upward extension length of the centrifuge gas outlet 12 is 100-500mm; when the airflow drives part of the filtrate to flow upward, the filtrate stays in the upwardly extending pipeline and does not enter the airflow passage.

[0040] The centrifuge filtrate outlet 13 extends horizontally or downwardly, so that the filtrate flows out horizontally or downwardly through the centrifuge filtrate outlet.

[0041] The airflow in and out of the heat exchanger 8 is in the bottom and out the top, and the refrigerant in and out of the heat exchanger 8 is in the top and out the bottom, and the airflow is cooled by convection. The airflow enters the bottom and exits the top, and the liquid component in the airflow is cooled into liquid when entering the heat exchanger port and remains in the lower part of the heat exchanger 8, which can reduce the impact on the inside of the heat exchanger 8 and facilitate the treatment of the liquid formed by cooling.

[0042] Furthermore, the heat exchanger 8 has an air inlet and an air outlet, the air inlet of the heat exchanger 8 is arranged at the lower part of the heat exchanger 8, and the air outlet of the heat exchanger 8 is arranged at the upper part of the heat exchanger 8; the air inlet of the heat exchanger 8 is connected to the air outlet pipeline 7, and the air outlet of the heat exchanger 8 is connected to the air inlet pipeline 6. The heat exchanger 8 also has a refrigerant inlet 14 and a refrigerant outlet 15, and the refrigerant inlet 14 and the refrigerant outlet 15 are both connected to the refrigerant system.

[0043] The air circulation system further includes a driving device 16, which is a fluid machine such as a fan that can realize gas transportation, and is used to provide power for air circulation. The driving device 16 is arranged at the air outlet of the air inlet pipeline 6 close to the heat exchanger 8. On the one hand, it can provide power to make the air flow quickly flow through the heat exchanger 8; on the other hand, it reduces the situation where the driving device 16 is placed at the air inlet of the heat exchanger 8, causing the air flow to drive the filtrate.

[0044] Furthermore, a temperature detection device is provided at the gas outlet of the heat exchanger 8 and the gas outlet 12 of the centrifuge. The temperature inside the centrifuge is reflected by detecting the temperature at the gas outlet 12 of the centrifuge, and the temperature of the cooling airflow entering the centrifuge is reflected by detecting the temperature at the gas outlet of the heat exchanger 8. The temperature of the centrifuge and the temperature control effect are monitored by these two temperatures.

[0045] Working principle of this utility model:

[0046] The cooling air flow of the air inlet pipeline enters the interior through the centrifuge air inlet on the top cover, flows through the inside of the drum assembly in turn, flows out from the bottom of the drum assembly, and enters the filtrate channel at the bottom of the centrifuge. The flow path of the gas inside the centrifuge is the same as the filtrate path, and the filtrate seepage path is fully utilized without opening an additional internal passage. After the gas and liquid flow into the three-way pipe through the gas-liquid outlet at the bottom of the centrifuge, the air flow flows into the air outlet pipeline through the upwardly opened centrifuge gas outlet, and enters the heat exchanger from the air inlet at the lower part of the heat exchanger after convective heat exchange with the refrigerant, and then enters the centrifuge from the air outlet at the upper part of the heat exchanger through the air inlet pipeline.

[0047] In the above process, the airflow cools the centrifuge and accelerates the seepage of the filtrate. On the one hand, the air pressure of the airflow increases the seepage pressure, and on the other hand, the outflow of the airflow is conducive to the seepage of the filtrate, and the airflow can carry some droplets, all of which accelerate the seepage of the filtrate.

[0048] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A discharging centrifuge, comprising a centrifuge tank (1) and a top cover (2) for sealing the centrifuge tank, characterized in that: The top cover (2) is provided with a centrifuge air inlet (9), and the bottom of the centrifuge tank (1) is provided with a centrifuge gas outlet (12); The centrifuge air inlet (9) is connected to an air inlet pipeline (6), and the centrifuge gas outlet (12) is connected to an air outlet pipeline (7).

2. A discharge centrifuge according to claim 1, characterized in that: A heat exchanger (8) is connected between the air inlet pipeline (6) and the air outlet pipeline (7); A driving device (16) is provided at the air outlet of the air inlet pipeline (6) close to the heat exchanger (8).

3. A discharging centrifuge according to claim 2, characterized in that: The air flow in and out of the heat exchanger (8) is in from the bottom and out from the top, and the refrigerant in and out of the heat exchanger (8) is in from the top and out from the bottom.

4. A discharge centrifuge according to claim 1, characterized in that: A gas-liquid outlet (10) is provided at the bottom of the centrifuge tank (1), and the gas-liquid outlet (10) is connected to a three-way pipe (11); The three-way pipe (11) has two outlets, one outlet is the centrifuge gas outlet (12), and the other outlet is the centrifuge filtrate outlet (13).

5. A discharge centrifuge according to claim 2, characterized in that: A temperature detection device is provided at the gas outlet of the heat exchanger (8) and the gas outlet (12) of the centrifuge.

6. A discharge centrifuge according to claim 1 or 4, characterized in that: The opening of the centrifuge gas outlet (12) faces upward; the centrifuge gas outlet (12) extends upward by 100-500 mm from the top of the intersection of the inlet and outlet of the three-way pipe (11).

7. A discharge centrifuge according to claim 1, characterized in that: A drum assembly (3) is provided in the centrifuge tank (1); the upper end of the drum assembly (3) is provided on a liquid partition plate (5) extending inwardly, and an opening is formed on the inner side of the liquid partition plate (5); The centrifuge air inlet (9) is arranged corresponding to the drum assembly (3), and is arranged corresponding to the opening on the inner side of the liquid isolation plate (5).

8. A discharge centrifuge according to claim 7, characterized in that: The top cover (2) is provided with a scraper device (4), wherein one end of the scraper of the scraper device (4) passes through an opening on the inner side of the liquid isolation plate (5) and extends into the drum assembly (3); The centrifuge air inlet (9) is arranged on a side of the scraper device (4) close to the center of the centrifuge.

9. A discharge centrifuge according to claim 4, characterized in that: The centrifuge filtrate outlet (13) extends horizontally or downwardly.

10. A discharge centrifuge according to claim 3, characterized in that: The heat exchanger (8) has an air inlet and an air outlet, the air inlet of the heat exchanger (8) is arranged at the lower part of the heat exchanger (8), and the air outlet of the heat exchanger (8) is arranged at the upper part of the heat exchanger (8); the air inlet of the heat exchanger (8) is connected to the air outlet pipeline (7), and the air outlet of the heat exchanger (8) is connected to the air inlet pipeline (6); The heat exchanger (8) also has a refrigerant inlet (14) and a refrigerant outlet (15), and the refrigerant inlet (14) and the refrigerant outlet (15) are both connected to the refrigerant system.

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