Feeding device for solids easy to absorb moisture

Abstract

The utility model discloses a feeding device for solids easy to absorb moisture, and relates to the field of medical intermediates. The feeding device for the solid easy to absorb moisture comprises a feeding cylinder and further comprises a discharging pipe fixedly communicated with the feeding cylinder, a control unit and a switch arranged on the discharging pipe and used for controlling the discharging pipe. The sealing cover is detachably connected to the feeding cylinder, and a supporting ring is fixedly connected to the sealing cover; the sealing ring is extruded by the supporting ring to be tightly attached to the inner wall of the feeding cylinder, so that the sealing performance of the connecting position of the sealing cover and the feeding cylinder is improved, the interior of the feeding cylinder is vacuumized, materials can be prevented from being oxidized and deteriorated under the vacuum condition, the expanded air bag is tightly attached to the sealing groove, and therefore the sealing performance of the feeding cylinder is improved. The sealing cover is arranged on the feeding cylinder, so that the sealing performance of the joint of the sealing cover and the feeding cylinder is further improved, the materials are effectively prevented from being condensed into blocks due to moisture absorption, and during feeding, the materials can be smoothly fed into other equipment through the feeding device.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical intermediates, and in particular relates to a feeding device for moisture-absorbing solids. Background Art

[0002] In the field of fine chemicals and pharmaceutical intermediates, the reaction materials that need to be added include solids and liquids. Liquids are usually pumped in or added through pipelines by negative pressure or dropwise addition. However, during the solid addition process, it is inevitable to perform air-blast operation. Some reaction materials are particularly prone to moisture absorption, and the presence of moisture has a great influence on the reaction. Therefore, when adding hygroscopic solid raw materials, waterproofing and drying in the process operation are extremely important.

[0003] However, the existing material addition usually adopts a sealing structure to achieve internal dryness. However, due to the insufficient sealing of the connection between the sealing cover and the feeding barrel, moisture in the outside air can easily penetrate into the feeding barrel through the gap between the sealing cover and the feeding barrel, causing the material to absorb moisture and condense into lumps. Therefore, when adding materials, it is impossible to smoothly add materials to other equipment through the feeding device. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a feeding device for moisture-absorbing solids which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A feeding device for hygroscopic solids comprises a feeding barrel, and also comprises: a discharge pipe fixedly connected to the feeding barrel, a control unit arranged on the discharge pipe and used for controlling the switch of the discharge pipe; a sealing cover detachably connected to the feeding barrel, wherein a support ring is fixedly connected to the sealing cover, a sealing ring is arranged on the support ring, and the sealing ring fits against the inner wall of the feeding barrel; an airbag arranged around the feeding barrel, wherein a sealing groove for use with the airbag is provided on the sealing cover; a vacuum pump fixedly mounted on the feeding barrel; a pipe one, one end of which is fixedly connected to the input end of the vacuum pump, and the other end is fixedly connected to the feeding barrel; a pipe two, one end of which is fixedly connected to the output end of the vacuum pump, and the other end is fixedly connected to the airbag.

[0007] Preferably, it further comprises a catheter, which is fixedly connected to the airbag and is provided with a solenoid valve.

[0008] When feeding, the control unit is used to control the switch of the discharge pipe. Preferably, the control unit includes a valve switch, and the valve switch is arranged on the discharge pipe.

[0009] In order to facilitate better discharge of materials from the feeding barrel through the discharge pipe, further, the bottom of the feeding barrel is configured to be conical.

[0010] In order to facilitate the installation or removal of the sealing cover by the staff, preferably, the sealing cover is detachably connected to the charging barrel by a plurality of fixing bolts.

[0011] In order to break up the material that has coagulated into agglomerates, preferably, the sealing cover is rotatably connected to a rotating shaft, a plurality of groups of crushing rods are fixedly connected to the rotating shaft, and each group of crushing rods is provided with a plurality of crushing rods. A motor is fixedly installed on the sealing cover, and the rotating shaft is fixedly connected to the output end of the motor.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0013] The utility model improves the sealing performance of the connection between the sealing cover and the feeding barrel by squeezing the sealing ring with the inner wall of the feeding barrel through the support ring, and prevents oxidation and deterioration of the material under vacuum conditions by evacuating the inside of the feeding barrel, and further improves the sealing performance of the connection between the sealing cover and the feeding barrel by closely fitting the expanded airbag with the sealing groove, effectively preventing the material from absorbing moisture and condensing into agglomerates. Therefore, when feeding, the material can be smoothly fed into other equipment through the feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the sealing cover structure of the utility model;

[0018] Figure 5 The utility model Figure 1 Enlarged view of part A.

[0019] In the figure: 1. feeding cylinder; 101. discharge pipe; 102. valve switch; 2. sealing cover; 201. fixing bolt; 202. support ring; 203. sealing ring; 3. vacuum pump; 301. pipeline 1; 302. pipeline 2; 303. air bag; 304. sealing groove; 305. guide tube; 4. motor; 401. rotating shaft; 402. breaking rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0021] Embodiment 1:

[0022] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 , a feeding device for hygroscopic solids, comprises a feeding barrel 1, and also comprises: a discharge pipe 101 fixedly connected to the feeding barrel 1, a control unit, which is arranged on the discharge pipe 101 and is used to control the switch of the discharge pipe 101; a sealing cover 2, which is detachably connected to the feeding barrel 1, wherein a support ring 202 is fixedly connected to the sealing cover 2, and a sealing ring 203 is arranged on the support ring 202, and the sealing ring 203 fits the inner wall of the feeding barrel 1; an airbag 303, which is arranged around the feeding barrel 1, wherein a sealing groove 304 for use with the airbag 303 is opened on the sealing cover 2; a vacuum pump 3, which is fixedly installed on the feeding barrel 1; a pipeline 1 301, one end of which is fixedly connected to the input end of the vacuum pump 3, and the other end is fixedly connected to the feeding barrel 1; a pipeline 2 302, one end of which is fixedly connected to the output end of the vacuum pump 3, and the other end is fixedly connected to the airbag 303.

[0023] The control unit includes a valve switch 102 , and the valve switch 102 is arranged on the discharge pipe 101 .

[0024] The bottom of the feeding cylinder 1 is arranged in a conical shape.

[0025] When feeding other equipment through the feeding device, first add the hygroscopic solid material into the feeding barrel 1, then install the sealing cover 2 onto the feeding barrel 1, and then close the feeding barrel 1. At this time, the support ring 202 inserted into the feeding barrel 1 squeezes the sealing ring 203 to fit tightly with the inner wall of the feeding barrel 1, thereby increasing the sealing performance of the connection between the sealing cover 2 and the feeding barrel 1, and preventing moisture in the outside air from penetrating into the feeding barrel 1 through the gap between the sealing cover 2 and the feeding barrel 1, causing the material to absorb moisture and condense into agglomerates. Then start the vacuum pump 3, and the vacuum pump 3 extracts the gas in the feeding barrel 1 through the pipeline 1 301. , and is transported into the air bag 303 through the pipe 2 302. Both the pipe 1 301 and the pipe 2 302 are provided with a one-way valve until the inside of the feeding barrel 1 is evacuated to a negative vacuum, so that under vacuum conditions, not only can the oxidation and deterioration of the material be prevented, but also the moisture absorption and condensation of the material can be further prevented. At the same time, the gas in the air bag 303 is pressurized to expand the air bag 303 and fit closely with the sealing groove 304, thereby further increasing the sealing performance of the connection between the sealing cover 2 and the feeding barrel 1, and effectively preventing the material from absorbing moisture and condensing into agglomerates. Therefore, when adding materials, other equipment can be smoothly added through the feeding device.

[0026] It should be noted that when the valve switch 102 on the discharge pipe 101 is opened so that the material added to the feeding barrel 1 is discharged to other equipment through the discharge pipe 101, since the bottom of the feeding barrel 1 is set in a conical shape, during the discharge process, the material in the feeding barrel 1 can be completely discharged into other equipment through the discharge pipe 101, thereby reducing material waste.

[0027] Embodiment 2:

[0028] Reference Figure 1 , Figure 3 and Figure 4 , the feeding device for hygroscopic solids is basically the same as that of embodiment 1, and further, the sealing cover 2 is detachably connected to the feeding barrel 1 through a plurality of fixing bolts 201;

[0029] The arrangement of the plurality of fixing bolts 201 makes it easy to install the sealing cover 2 on the feeding barrel 1 and also makes it easy for the staff to disassemble the sealing cover 2 .

[0030] Embodiment 3:

[0031] Reference Figure 1 , Figure 2 and Figure 3 , a feeding device for hygroscopic solids, which is basically the same as that of Example 1, furthermore, a rotating shaft 401 is rotatably connected to the sealing cover 2, a plurality of groups of crushing rods 402 are fixedly connected to the rotating shaft 401, and each group of crushing rods 402 is provided with a plurality of, a motor 4 is fixedly installed on the sealing cover 2, and the rotating shaft 401 is fixedly connected to the output end of the motor 4;

[0032] In order to prevent the discharge pipe 101 from being blocked by the material that has solidified into agglomerates, when feeding material into other equipment through the feeding device, the motor 4 is started, and the motor 4 drives the rotating shaft 401 to rotate, and the rotating shaft 401 drives the breaking rod 402 to rotate, so that the breaking rod 402 can break up the material that has solidified into agglomerates, effectively reducing the probability of the discharge pipe 101 being blocked during the feeding process.

[0033] Embodiment 4:

[0034] Reference Figure 1 , Figure 2 , the feeding device for hygroscopic solids is basically the same as that of embodiment 1, and further comprises a conduit 305, the conduit 305 is fixedly connected to the airbag 303, and a solenoid valve is provided on the conduit 305;

[0035] In order to avoid damage to the inflated airbag 303, when removing the sealing cover 2, it is necessary to first open the solenoid valve on the conduit 305 to allow the gas to be discharged from the airbag 303 through the conduit 305. After the gas is completely discharged from the airbag 303, the sealing cover 2 can be removed.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A feeding device for hygroscopic solids, comprising a feeding cylinder (1), characterized in that: Also includes: a discharge pipe (101) fixedly connected to the feeding cylinder (1), A control unit, arranged on the discharge pipe (101) and used for controlling the switch of the discharge pipe (101); The sealing cover (2) is detachably connected to the feeding cylinder (1). The sealing cover (2) is fixedly connected to a support ring (202), the support ring (202) is provided with a sealing ring (203), and the sealing ring (203) is in contact with the inner wall of the feeding barrel (1); The air bag (303) is arranged around the feeding cylinder (1). Wherein, the sealing cover (2) is provided with a sealing groove (304) for use with the airbag (303); A vacuum pump (3) is fixedly mounted on the feeding cylinder (1); Pipeline 1 (301), one end of which is fixedly connected to the input end of the vacuum pump (3), and the other end of which is fixedly connected to the feeding cylinder (1); Pipeline 2 (302) has one end fixedly connected to the output end of the vacuum pump (3), and the other end fixedly connected to the air bag (303).

2. The feeding device for hygroscopic solids according to claim 1, characterized in that: It also includes a catheter (305), wherein the catheter (305) is fixedly connected to the airbag (303), and an electromagnetic valve is arranged on the catheter (305).

3. The feeding device for hygroscopic solids according to claim 1, characterized in that: The control unit comprises a valve switch (102), and the valve switch (102) is arranged on the discharge pipe (101).

4. The feeding device for hygroscopic solids according to claim 3, characterized in that: The bottom of the feeding cylinder (1) is arranged in a conical shape.

5. The feeding device for hygroscopic solids according to claim 1, characterized in that: The sealing cover (2) is detachably connected to the feeding barrel (1) via a plurality of fixing bolts (201).

6. The feeding device for hygroscopic solids according to claim 1, characterized in that: The sealing cover (2) is rotatably connected to a rotating shaft (401), and a plurality of groups of crushing rods (402) are fixedly connected to the rotating shaft (401), with each group of crushing rods (402) being provided with a plurality of crushing rods. A motor (4) is fixedly mounted on the sealing cover (2), and the rotating shaft (401) is fixedly connected to an output end of the motor (4).

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