A medical intermediate rectification equipment

Abstract

The utility model discloses a kind of medical intermediates rectification equipment, specifically related to rectification equipment technical field, including rectification cylinder, raw material cylinder and condensing cylinder, the outer top surface of rectification cylinder is fixedly installed with transmission pipe, the inside of raw material cylinder is fixedly installed with preheating pipe, the end of transmission pipe away from rectification cylinder extends to the inside of raw material cylinder and is fixedly connected with preheating pipe.The utility model said a kind of medical intermediates rectification equipment, in actual work, metering pump is transmitted to rectification cylinder inside by feed pipe and connecting pipe, and raw material in raw material cylinder, while induced draft fan operates, after gasification raw material enters preheating pipe by transmission pipe, and the heat of gasification raw material itself will be transferred to heat conduction plate by preheating pipe, and the heat of gasification raw material itself is transferred to raw material in raw material cylinder by heat conduction plate, to preheat raw material, to facilitate the heat of gasification raw material itself to be utilized, to reduce the waste of resources.

Description

Technical Field

[0001] This utility model relates to the field of distillation equipment technology, and in particular to a pharmaceutical intermediate distillation equipment. Background Technology

[0002] Pharmaceutical intermediates refer to chemical raw materials or products used in the process of drug synthesis. Pharmaceutical intermediates require multiple processing steps during production and processing. Among them, when pharmaceutical intermediates need to be purified, they need to be processed by special distillation equipment in order to synthesize drugs with high purity in the later stage.

[0003] A search revealed, for example, a utility model with publication number CN222641265U, which discloses a pharmaceutical intermediate distillation device, including a base plate, a distillation cylinder fixedly mounted on the upper surface of the base plate, a condenser fixedly mounted on the upper surface of the base plate, an electric heating cover on the outer surface of the distillation cylinder, and a servo motor fixedly mounted on the bottom surface of the distillation cylinder. In this utility model, the vaporized raw material enters the condenser through a connecting pipe for condensation. However, the vaporized raw material itself still has a certain amount of heat, which will directly enter the condenser for condensation. This utility model is not convenient for utilizing the residual heat of the vaporized raw material, thus wasting the heat of the vaporized raw material and causing resource waste. Therefore, in order to solve the above defects, this utility model proposes a pharmaceutical intermediate distillation device. Utility Model Content

[0004] The main purpose of this invention is to provide a pharmaceutical intermediate distillation device that can effectively solve the problem that existing distillation devices are not convenient for utilizing the residual heat of the raw materials after vaporization.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pharmaceutical intermediate distillation apparatus includes a distillation cylinder, a raw material cylinder, and a condenser. A transfer pipe is fixedly installed on the outer top surface of the distillation cylinder. A preheating pipe is fixedly installed inside the raw material cylinder. The end of the transfer pipe away from the distillation cylinder extends into the interior of the raw material cylinder and is fixedly connected to the preheating pipe. Multiple heat-conducting plates are fixedly installed on the outer surface of the preheating pipe. The end of the preheating pipe away from the transfer pipe extends into the exterior of the raw material cylinder and is fixedly installed with a gas delivery pipe. A feed pipe is fixedly installed on one side of the outer surface of the raw material cylinder.

[0007] Preferably, a stirring rod is rotatably connected to the inner bottom surface of the distillation cylinder, a first motor is fixedly installed on the outer bottom surface of the distillation cylinder, and the output shaft of the first motor extends into the interior of the distillation cylinder and is fixedly connected to the stirring rod. A discharge pipe is fixedly installed on one side of the outer bottom surface of the distillation cylinder, and a metering pump is provided between the distillation cylinder and the raw material cylinder.

[0008] Preferably, a connecting pipe is fixedly connected between the inlet of the metering pump and the raw material cylinder, a conveying pipe is fixedly connected between the outlet of the metering pump and the distillation cylinder, and an electric heating cover is fixedly installed on one side of the outer surface of the distillation cylinder.

[0009] Preferably, a condenser is fixedly installed inside the distillation cylinder, a condensing plate is fixedly installed on one side of the inside of the distillation cylinder, a discharge pipe is fixedly installed at the bottom of one side of the outer surface of the distillation cylinder, an induced draft fan is fixedly installed at the top of one side of the outer surface of the distillation cylinder, the end of the gas delivery pipe away from the distillation cylinder is fixedly connected to the inlet of the induced draft fan, and an inlet pipe is fixedly connected between the outlet of the induced draft fan and the distillation cylinder.

[0010] Preferably, a second motor is fixedly installed on the outer top surface of the distillation cylinder, a rotating shaft is rotatably connected to the inner top surface of the distillation cylinder, and the output shaft of the second motor extends into the interior of the distillation cylinder and is fixedly connected to the rotating shaft. Multiple storage sleeves are fixedly installed on the outer surface of the rotating shaft.

[0011] Preferably, a spring is fixedly installed inside the storage sleeve, and a scraper is slidably connected inside the storage sleeve, with the scraper fixedly connected to the spring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model discloses a pharmaceutical intermediate distillation device. By setting up a raw material cylinder, in actual operation, a metering pump can transfer the raw material in the raw material cylinder to the distillation cylinder through a feed pipe and a connecting pipe. Meanwhile, the induced draft fan operates, causing the vaporized raw material to enter the preheating pipe through the transfer pipe. The heat of the vaporized raw material itself is transferred to the heat conduction plate through the preheating pipe, and then transferred to the raw material in the raw material cylinder through the heat conduction plate to preheat the raw material. This facilitates the utilization of the residual heat of the vaporized raw material, thereby reducing the waste of resources. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the raw material cylinder of this utility model;

[0016] Figure 3 This is a schematic diagram of the distillation cylinder structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the condenser cylinder of this utility model;

[0018] Figure 5 This is a schematic diagram of the storage sleeve structure of this utility model.

[0019] In the diagram: 1. Distillation cylinder; 2. Electric heating hood; 3. Discharge pipe; 4. Raw material cylinder; 5. Condenser cylinder; 6. Transfer pipe; 7. Metering pump; 8. Feed pipe; 9. Gas supply pipe; 10. Connecting pipe; 401. Preheating pipe; 402. Heat-conducting plate; 403. Feed pipe; 101. Stirring rod; 102. First motor; 501. Discharge pipe; 502. Exhaust fan; 503. Gas inlet pipe; 504. Condenser; 505. Condensing plate; 506. Second motor; 507. Rotating shaft; 508. Storage sleeve; 509. Spring; 510. Scraper. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] This utility model discloses a pharmaceutical intermediate distillation device, such as... Figures 1-5 As shown, the system includes a distillation cylinder 1, a raw material cylinder 4, and a condenser cylinder 5. The raw material cylinder 4 is located between the condenser cylinder 5 and the distillation cylinder 1. A transfer pipe 6 is fixedly installed on the outer top surface of the distillation cylinder 1. A preheating pipe 401 is fixedly installed inside the raw material cylinder 4. The end of the transfer pipe 6 away from the distillation cylinder 1 extends into the interior of the raw material cylinder 4 and is fixedly connected to the preheating pipe 401. Thus, the vaporized raw material generated in the distillation cylinder 1 will enter the preheating pipe 401 through the transfer pipe 6.

[0022] Multiple heat-conducting plates 402 are fixedly installed on the outer surface of the preheating pipe 401. The multiple heat-conducting plates 402 are in direct contact with the raw material in the raw material cylinder 4. When the gasified raw material enters the preheating pipe 401, its heat will be transferred to the preheating pipe 401, and then to the heat-conducting plates 402, and then to the raw material through the heat-conducting plates 402 to preheat the raw material.

[0023] Furthermore, the preheating pipe 401 is curved to prolong the flow time of the gasified raw material in the preheating pipe 401. The end of the preheating pipe 401 away from the transmission pipe 6 extends to the outside of the raw material cylinder 4 and is fixedly installed with a gas transmission pipe 9. A feed pipe 403 is fixedly installed on one side of the outer surface of the raw material cylinder 4. The feed pipe 403 is connected to an external pipe so that external liquid raw materials can be transferred into the raw material cylinder 4.

[0024] A stirring rod 101 is rotatably connected to the inner bottom surface of the distillation cylinder 1, and a first motor 102 is fixedly installed on the outer bottom surface of the distillation cylinder 1. The output shaft of the first motor 102 extends into the interior of the distillation cylinder 1 and is fixedly connected to the stirring rod 101. The first motor 102 can drive the stirring rod 101 to rotate and stir the liquid raw material entering the distillation cylinder 1.

[0025] A discharge pipe 3 with a valve is fixedly installed on one side of the outer bottom surface of the distillation cylinder 1. The raw material residue after distillation can be discharged through the discharge pipe 3. A metering pump 7 is installed between the distillation cylinder 1 and the raw material cylinder 4. The metering pump 7 is powered by an external power source. When the metering pump 7 is powered on, the motor of the metering pump 7 provides power and converts the rotational motion into linear motion through the crankshaft connecting rod mechanism, pushing the diaphragm to contract backward. The pump chamber volume increases, forming a negative pressure. Liquid enters the pump chamber through the suction valve. At this time, the discharge valve is closed due to the pressure difference. When the diaphragm moves forward, it compresses the pump chamber volume, the liquid pressure increases, the discharge valve opens, and the liquid is forced out of the pump chamber. The suction valve closes to prevent backflow. The diaphragm reciprocates periodically under the drive of the power end, realizing the continuous suction and discharge of liquid.

[0026] Manually rotating the eccentric wheel changes the connecting rod stroke, directly adjusting the single stroke length of the diaphragm and changing the single discharge volume. Meanwhile, changing the motor speed through the speed regulating mechanism adjusts the number of reciprocating strokes of the diaphragm per unit time, thereby regulating the flow rate.

[0027] Since metering pump 7 is existing technology, it will not be described in detail here.

[0028] A connecting pipe 10 is fixedly connected between the inlet of the metering pump 7 and the raw material cylinder 4, and a conveying pipe 8 is fixedly connected between the outlet of the metering pump 7 and the distillation cylinder 1. The metering pump 7 can transfer the liquid raw material in the raw material cylinder 4 to the distillation cylinder 1 through the connecting pipe 10 and the conveying pipe 8. An electric heating cover 2 is fixedly installed on one side of the outer surface of the distillation cylinder 1. The electric heating cover 2 is powered by an external power source. When the electric heating cover 2 is powered on, the current passes through the resistance wire, and heat is generated due to the resistance value, thereby heating the liquid raw material in the distillation cylinder 1.

[0029] A condenser 504 is fixedly installed inside the distillation cylinder 1, and a condensing plate 505 is fixedly installed on one side of the inside of the distillation cylinder 1. After the vaporized raw material enters the distillation cylinder 1, it will adhere to the condensing plate 505. When the condenser 504 is started, the cooling water of the condenser 504 circulates on the outer wall of the condenser 504, absorbing the heat of the vaporized raw material. When the temperature of the gaseous raw material drops below the dew point, condensation occurs, causing the vaporized raw material adhering to the condensing plate 505 to condense into a liquid state.

[0030] A discharge pipe 501 with a valve is fixedly installed on the bottom side of one side of the outer surface of the distillation cylinder 1. The condensed liquid raw material will be discharged through the discharge pipe 501. An induced draft fan 502 is fixedly installed on the top side of one side of the outer surface of the distillation cylinder 1. The induced draft fan 502 is powered by an external power source. When the induced draft fan 502 is powered on, the motor of the induced draft fan 502 drives the impeller to rotate at high speed. The gas between the blades is driven to rotate and is thrown towards the edge of the impeller by centrifugal force, gaining kinetic energy. The thrown gas enters the volute, where the flow rate slows down. The kinetic energy is converted into static pressure energy through the diffuser, thereby increasing the gas pressure. A low-pressure zone is formed in the center of the impeller due to the gas being thrown out. External gas is drawn in under the pressure difference, forming a continuous intake, pressurization, and exhaust cycle.

[0031] The end of the gas delivery pipe 9 away from the distillation cylinder 1 is fixedly connected to the inlet of the induced draft fan 502. The outlet of the induced draft fan 502 is fixedly connected to the distillation cylinder 1 via an inlet pipe 503. When the induced draft fan 502 is started, the gasified raw material can flow.

[0032] A second motor 506 is fixedly installed on the outer top surface of the distillation cylinder 1. Both the second motor 506 and the first motor 102 are powered by an external power source. A rotating shaft 507 is rotatably connected to the inner top surface of the distillation cylinder 1. The output shaft of the second motor 506 extends into the interior of the distillation cylinder 1 and is fixedly connected to the rotating shaft 507. Multiple storage sleeves 508 are fixedly installed on the outer surface of the rotating shaft 507. When the second motor 506 is powered on, it can drive the rotating shaft 507 to rotate.

[0033] A spring 509 is fixedly installed inside the storage sleeve 508, and a scraper 510 is slidably connected inside the storage sleeve 508. The scraper 510 is fixedly connected to the spring 509. When the rotating shaft 507 rotates at high speed, the centrifugal force generated by the rotation will throw the scraper 510 out of the storage sleeve 508, causing the spring 509 to stretch. The scraper 510 thrown out will contact the inner wall of the distillation cylinder 1, and then the scraper 510 can clean the residue on the inner wall of the distillation cylinder 1. When the rotating shaft 507 does not rotate, the stretched spring 509 will drive the scraper 510 to return to its original position, so that the scraper 510 enters the storage sleeve 508.

[0034] The working principle of this utility model is as follows: the operator first connects the external pipe to the feed pipe 403 and transfers the liquid raw material to the raw material cylinder 4 through the feed pipe 403. Then, the metering pump 7 is started. The metering pump 7 transfers the liquid raw material in the raw material cylinder 4 to the distillation cylinder 1 through the connecting pipe 10 and the conveying pipe 8.

[0035] The staff starts the first motor 102 and the electric heating cover 2. The electric heating cover 2 is powered by an external power source. When the electric heating cover 2 is powered on, the current passes through the resistance wire, and heat is generated due to the resistance value, which in turn heats the liquid raw material in the distillation cylinder 1. The first motor 102 can drive the stirring rod 101 to rotate, stirring the liquid raw material entering the distillation cylinder 1, so that the liquid raw material becomes a gasified raw material.

[0036] Then, the induced draft fan 502 is started, and the gasified raw material enters the preheating pipe 401 through the transmission pipe 6. The heat of the gasified raw material itself is transferred to the heat conduction plate 402 through the preheating pipe 401, and then transferred to the raw material in the raw material cylinder 4 through the heat conduction plate 402 to preheat the subsequent raw material in the raw material cylinder 4.

[0037] The preheated gasified feedstock enters the distillation cylinder 1 through the gas delivery pipe 9 and the gas inlet pipe 503. After entering the distillation cylinder 1, the gasified feedstock adheres to the condenser plate 505. When the condenser 504 is started, the cooling water of the condenser 504 circulates on the outer wall of the condenser 504, absorbing the heat of the gasified feedstock. When the temperature of the gaseous feedstock drops below the dew point, condensation occurs, causing the gasified feedstock adhering to the condenser plate 505 to condense into a liquid state.

[0038] The liquid raw material will drip to the bottom of the distillation cylinder 1, and then it can be discharged by opening the discharge pipe 501. When the second motor 506 drives the rotating shaft 507 to rotate at high speed, the centrifugal force generated by the rotation will throw the scraper 510 out of the receiving sleeve 508, causing the spring 509 to stretch. The scraper 510 thrown out will contact the inner wall of the distillation cylinder 1, and then the scraper 510 can clean the residue on the inner wall of the distillation cylinder 1. When the rotating shaft 507 does not rotate, the stretched spring 509 will drive the scraper 510 to reset, so that the scraper 510 enters the receiving sleeve 508.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical intermediate rectification apparatus comprising a rectification cylinder (1), a raw material cylinder (4) and a condensation cylinder (5), characterized in that: A transfer pipe (6) is fixedly installed on the top surface of the distillation cylinder (1), and a preheating pipe (401) is fixedly installed inside the raw material cylinder (4). The end of the transfer pipe (6) away from the distillation cylinder (1) extends into the interior of the raw material cylinder (4) and is fixedly connected to the preheating pipe (401). A plurality of heat-conducting plates (402) are fixedly installed on the outer surface of the preheating pipe (401). The end of the preheating pipe (401) away from the transfer pipe (6) extends into the outside of the raw material cylinder (4) and is fixedly installed with a gas supply pipe (9). A feed pipe (403) is fixedly installed on one side of the outer surface of the raw material cylinder (4).

2. A pharmaceutical intermediate rectification apparatus according to claim 1, wherein: A stirring rod (101) is rotatably connected to the inner bottom surface of the distillation cylinder (1). A first motor (102) is fixedly installed on the outer bottom surface of the distillation cylinder (1), and the output shaft of the first motor (102) extends into the interior of the distillation cylinder (1) and is fixedly connected to the stirring rod (101). A discharge pipe (3) is fixedly installed on one side of the outer bottom surface of the distillation cylinder (1). A metering pump (7) is provided between the distillation cylinder (1) and the raw material cylinder (4).

3. The pharmaceutical intermediate distillation equipment according to claim 2, characterized in that: A connecting pipe (10) is fixedly connected between the inlet of the metering pump (7) and the raw material cylinder (4), and a conveying pipe (8) is fixedly connected between the outlet of the metering pump (7) and the distillation cylinder (1). An electric heating cover (2) is fixedly installed on one side of the outer surface of the distillation cylinder (1).

4. The pharmaceutical intermediate distillation equipment according to claim 1, characterized in that: A condenser (504) is fixedly installed inside the distillation cylinder (1). A condenser plate (505) is fixedly installed on one side of the inside of the distillation cylinder (1). A discharge pipe (501) is fixedly installed at the bottom of one side of the outer surface of the distillation cylinder (1). An induced draft fan (502) is fixedly installed at the top of one side of the outer surface of the distillation cylinder (1). The end of the gas delivery pipe (9) away from the distillation cylinder (1) is fixedly connected to the inlet of the induced draft fan (502). An inlet pipe (503) is fixedly connected between the outlet of the induced draft fan (502) and the distillation cylinder (1).

5. The pharmaceutical intermediate distillation equipment according to claim 1, characterized in that: A second motor (506) is fixedly installed on the outer top surface of the distillation cylinder (1), and a rotating shaft (507) is rotatably connected to the inner top surface of the distillation cylinder (1). The output shaft of the second motor (506) extends into the interior of the distillation cylinder (1) and is fixedly connected to the rotating shaft (507). Multiple storage sleeves (508) are fixedly installed on the outer surface of the rotating shaft (507).

6. The pharmaceutical intermediate distillation equipment according to claim 5, characterized in that: A spring (509) is fixedly installed inside the storage sleeve (508), and a scraper (510) is slidably connected inside the storage sleeve (508), and the scraper (510) is fixedly connected to the spring (509).

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