CN209166057U - CDA drying production line - Google Patents

Abstract

The utility model provides a CDA drying production line, which relates to the technical field of chemical equipment, comprising a centrifuge, a dryer and a vibrating screen connected with the dryer, the discharge port of the centrifuge and the The feeding port is connected by a feeding device. The feeding device includes a first conveyor, a hoist and a second conveyor that are closed and connected in sequence. The feeding device also includes a feeding port provided on the centrifuge. The blanking buffer mechanism and the blanking funnel between the feeding end of the first conveyor and the first conveyor; the CDA drying production line provided by the utility model can make the CDA solid materials dry in a closed environment, avoiding the need for personnel Causes health threats and self-prone problems of clumping.

Description

CDA drying production line

technical field

The utility model belongs to the technical field of chemical equipment, and more particularly relates to a CDA drying production line.

Background technique

CDA is the abbreviation of 1,1-cyclohexyldiacetic acid. It is used as the intermediate of drug gabapentin. It is a white crystalline powder, which is irritating to eyes, respiratory system and skin. The damage to the human body is mainly dust damage, and the long-term exposure of personnel to the CDA dust environment will cause damage to the respiratory system. In the CDA production process, the CDA mixed liquid needs to be dried in a centrifuge to obtain solid materials, then the solid materials are dried, and finally the finished products are obtained by screening, collecting and packaging.

At present, each equipment in the drying section of CDA production is in a disconnected state, and it is necessary to rely on manual transfer of solid materials, resulting in exposure of solid materials to the external environment, resulting in the following two problems: one is dust pollution, which threatens the health and safety of workers; Second, solid materials are easy to agglomerate, which affects the drying process.

Utility model content

The purpose of the utility model is to provide a CDA drying production line, which aims to solve the above-mentioned problems in the prior art, so that solid materials can be dried in a closed environment of automatic transmission to obtain finished products.

In order to achieve the above purpose, the technical solution adopted by the present invention is to provide a CDA drying production line, comprising a centrifuge, a dryer and a vibrating screen connected with the dryer, the discharge port of the centrifuge and the drying The feeding port of the drying machine is connected by a feeding device, and the feeding device includes a first conveyor, an elevator and a second conveyor which are closed and connected in sequence;

The conveying device further includes a blanking buffer mechanism and a blanking funnel arranged between the discharge port of the centrifuge and the feed end of the first conveyor.

Further, the blanking buffer mechanism is a first feeding pipe disposed between the discharge port of the centrifuge and the feeding end of the first conveyor and a first feeding pipe disposed on the inner wall of the first feeding pipe. And the elastic sheet extending obliquely downward, the upper end of the elastic sheet is fixedly connected with the inner wall of the first feeding pipe, and the lower end is suspended.

Further, the elastic sheet is elongated and provided with multiple pieces, the upper end of the elastic sheet is fixed on the circumference of the inner wall of the first feeding tube at the same height, and the lower end of the elastic sheet meets the at the central axis of the first feeding tube.

Further, the elastic sheet is elongated and provided with a plurality of elastic sheets, and the elastic sheet is spirally arranged on the inner wall of the first feeding pipe along the length direction of the first feeding pipe.

Further, the feeding funnel is located between the lower end of the first feeding pipe and the feeding end of the first conveyor, the feeding funnel is communicated with the first feeding pipe, and the feeding The inlet of the funnel is sealedly connected to the opening of the lower end of the first feeding pipe, and the outlet of the feeding funnel is sealedly connected to the feeding end of the first conveyor.

Further, the inlet of the feeding funnel is provided with a sealing cover, the edge of the sealing cover is sealed with the edge of the inlet of the feeding funnel, the center of the sealing cover is provided with a feeding hole, and the The edge is in sealing connection with the edge of the lower end of the first feeding tube.

Further, the first conveyor is a scraper conveyor.

Further, an air induction mechanism for collecting dust is provided at the feed port of the dryer, and the air induction mechanism includes a pipe connected to the feed port of the dryer and a fan at the other end of the pipe. .

The beneficial effect of the CDA drying production line provided by the utility model is that the discharge port of the centrifuge and the feed port of the dryer are closed and connected through the conveying device, and the solid material of the CDA flows from the discharge port of the centrifuge in a closed environment. It is transported to the feed port of the dryer, which eliminates the health threat to personnel caused by the exposure of solid materials to the external environment and the problem of easy agglomeration; the change from manual conveying to automatic conveying of conveying devices also saves labor and improves efficiency. ; The conveying device has an even distribution effect on the solid materials produced in the centrifuge, so as to achieve uniform feeding at the dryer, which improves the quality of the dried products compared with the manual centralized mass feeding, and makes the dried products more efficient. Dispersion and uniformity; the blanking buffer mechanism can prevent the wet and heavy solid materials falling from the discharge port of the centrifuge from impacting the lower parts, causing the parts to become loose and affecting the sealing; the unloading funnel can ensure that the solid materials are smoothly conveyed from the first The feed end of the machine enters the first conveyor.

Description of drawings

Fig. 1 is the composition schematic diagram of the CDA drying production line that the utility model embodiment provides;

2 is a schematic diagram of an elastic sheet provided on the inner wall of the first feeding tube provided by an embodiment of the present utility model;

3 is a top view of a plurality of elastic sheets provided at the same circumferential height of the inner wall of the first feeding tube according to an embodiment of the present invention;

4 is a schematic diagram of a plurality of elastic sheets spirally disposed on the inner wall of the first feeding tube according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a feeding hopper provided by an embodiment of the present utility model.

In the picture: 1. Centrifuge, 2. The first feeding pipe, 3. The feeding hopper, 4. The first conveyor, 5. The elevator, 6. The second conveyor, 7. The second feeding pipe, 8 , Induction mechanism, 9, Dryer, 10, Third feeding pipe, 11, Third conveyor, 12, Fourth feeding pipe, 13, Vibrating screen, 14, Discharging pipe, 21, Elastic sheet, 31. Seal the cover.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

As shown in Figure 1, the CDA drying production line provided by the present invention will now be described. The CDA drying production line includes a centrifuge 1, a dryer 9 and a vibrating screen 13 connected to the dryer 9. The discharge port of the centrifuge 1 and the feed port of the dryer 9 are connected by a feeding device. The conveying device includes a first conveyor 4, an elevator 5 and a second conveyor 6 that are closed and connected in sequence; The blanking buffer mechanism and the blanking funnel 3 between the material ends. Specifically, the elevator 5 is a bucket elevator, the second conveyor 6 is a screw conveyor, and the second conveyor 6 and the dryer 9 are connected by a second feeding pipe 7. The bucket elevator, the screw conveyor The machine and the second feeding pipe 7 are mature applications in the prior art. Generally, in the prior art, the equipment after the dryer 9 further includes a third feeding pipe 10 , a third conveyor 11 , a fourth feeding pipe 12 , a vibrating screen 13 and a discharging pipe 14 arranged in sequence. The feeding port of the centrifuge 1 is connected to the upstream production line. The CDA solid-liquid mixture produced by the upstream production line is dried in the centrifuge 1 to obtain solid materials. , the elevator 5, the second conveyor 6 and the second feeding pipe 7 then enter the dryer 9. After the solid material is dried, it passes through the third feeding pipe 10, the third conveyor 11 and the fourth feeding pipe in turn. After 12, it enters the vibrating screen 13, and the solid materials screened by the vibrating screen 13 are discharged from the discharge pipe 14 and collected and packaged to complete the drying production process of CDA.

The beneficial effect of the CDA drying production line provided by the present invention is that the discharge port of the centrifuge 1 and the feed port of the dryer 9 are closed and connected by the conveying device, and the solid material of CDA is discharged from the centrifuge 1 in a closed environment. The discharge port is transported to the feed port of the dryer 9, which eliminates the problem that the solid material is exposed to the external environment and causes health threats to personnel and is easy to agglomerate. Manually, the efficiency is improved; the conveying device has an even distribution effect on the solid materials produced in the centrifuge 1, so as to realize the uniform feeding at the dryer 9, which improves the quality of the dried products compared with the manual concentrated mass feeding. , so that the dried product is more dispersed and uniform. The blanking buffer mechanism can prevent the wet and heavy solid materials falling from the discharge port of the centrifuge 1 from impacting the parts below, causing the parts to loosen and affect the sealing; the blanking funnel 3 can ensure that the solid materials flow smoothly from the first conveyor The feed end of the feeder enters the first conveyor 4. The function of the first conveyor 4 is to transport the solid material from the discharge port of the centrifuge 1 to the feed end of the elevator 5; the function of the elevator 5 is to lift the solid material to a high degree, so that the solid material can be completed by its own gravity. The flow between the subsequent processes from drying to screening, in a specific embodiment, the elevator 5 lifts the solid material to the third floor of the workshop, the dryer 9 is located on the second floor of the workshop, the vibrating screen 13 is located on the first floor of the workshop, and the vibration screen 13 is located on the first floor of the workshop. The discharge pipe 14 connected to the screen 13 is also located on the first floor of the workshop. The finished products are collected and packed at the discharge pipe 14. The discharge pipe 14 is located on the first floor of the workshop and can be easily transported; The discharge end of the machine 5 is transported to the feed port of the dryer 9.

Further, as shown in FIG. 1 and FIG. 2 , as a specific embodiment of the CDA drying production line provided by the present invention, the blanking buffer mechanism is provided at the discharge port of the centrifuge 1 and the first conveyor. 4 between the feeding ends of the first feeding tube 2 and the elastic sheet 21 provided on the inner wall of the first feeding tube 2 and extending obliquely downward, the upper end of the elastic sheet 21 and the inner wall of the first feeding tube 2 Fixed connection, the lower end is suspended. There is a certain height between the discharge port of the centrifuge 1 and the feed end of the first conveyor 4, and the solid material at this time is wet and heavy, so the solid material will fall from the discharge port of the centrifuge 1. The impact on the components below will cause noise and vibration. In the long run, the parts at the impacted place are easy to loosen, resulting in a loose seal. The elastic sheet 21 can be elastically bent, and acts as a buffer component to buffer and disperse the solid material falling from the discharge port of the centrifuge 1, so as to reduce the impact of the solid material on the equipment below. The lower the setting height of the elastic sheet 21 is, the better. Generally, the elastic sheet 21 is arranged near the bottom end of the first feeding tube 2 .

Further, as shown in FIG. 2 and FIG. 3 , as a specific embodiment of the CDA drying production line provided by the present invention, the elastic sheet 21 is elongated and provided with multiple pieces, and the upper end of the elastic sheet 21 is fixed on the On the circumference of the inner wall of the first feeding tube 2 at the same height, the lower ends of the elastic sheets 21 meet at the central axis of the first feeding tube 2 . The plurality of elastic sheets 21 can cover the channel section of the first feeding tube 2 in all directions, so as to better buffer the falling solid materials.

Further, as shown in FIG. 2 and FIG. 4 , the elastic sheet 21 is elongated and provided with a plurality of elastic sheets 21 , and the elastic sheet 21 is spirally arranged on the inner wall of the first feeding pipe 2 along the length direction of the first feeding pipe 2 . superior. Specifically, the spiral shape is rotated at least 360 degrees, which can cover the channel section of the first feeding pipe 2 in all directions. The spiral arrangement can better disperse the solid material and further reduce the impact of the solid material on the lower parts.

Further, as shown in FIG. 1 and FIG. 5 , as a specific embodiment of the CDA drying production line provided by the present invention, the unloading funnel 3 is located at the lower end of the first unloading pipe 2 and the feed of the first conveyor 4 . Between the material ends, the unloading funnel 3 is communicated with the first unloading pipe 2, the inlet of the unloading funnel 3 is sealedly connected with the lower end opening of the first unloading pipe 2, and the outlet of the unloading funnel 3 is connected with the opening of the first conveyor 4. Feed end sealed connection. If the lower end of the first feeding pipe 2 is directly connected to the feeding end of the first conveyor 4, the cross section of the material passage at the connection is small, and the solid materials are easily squeezed and accumulated at the connection and cannot fall into the first conveyor 4 smoothly. . The unloading funnel 3 can make the solid materials pile up into an inverted cone shape. The upper layer of the inverted cone shape has a larger opening and has more solid materials. The solid materials here can generate pressure on the solid materials at the connection, so as to ensure the smooth entry of the solid materials. in the first conveyor 4.

Further, as shown in FIG. 5 , as a specific embodiment of the CDA drying production line provided by the present invention, the inlet of the feeding funnel 3 is provided with a sealing cover 31 , and the edge of the sealing cover 31 is connected to the inlet of the feeding funnel 3 . The edges are sealed and connected, the center of the sealing cover 31 is provided with a feed hole, and the edge of the feed hole is sealed with the lower edge of the first feeding tube 2 . The function of the sealing cover 31 is to seal the connection between the unloading funnel 3 and the first unloading pipe 2 to ensure that the solid material is in a closed environment. Generally, the edge of the feeding hole and the lower edge of the first feeding pipe 2 are connected by welding, and the sealing cover 31 and the feeding funnel 3 can be integrally formed or connected by welding.

Further, as a specific embodiment of the CDA drying production line provided by the present invention, the first conveyor 4 is a scraper conveyor. The scraper conveyor is a mature application in the prior art. The solid material at the first conveyor 4 has just been output from the centrifuge 1 , and it is relatively wet and easy to agglomerate. The scraper conveyor can avoid the blockage of the first conveyor 4 caused by agglomeration of a large amount of wet solid materials.

Further, as shown in FIG. 1 , as a specific embodiment of the CDA drying production line provided by the present utility model, the inlet of the dryer 9 is provided with an air-inducing mechanism 8 for collecting dust, and the air-inducing mechanism 8 It includes a pipeline connected to the feed inlet of the dryer 9 and a fan at the other end of the pipeline. During the working process of the dryer 9, dust will be generated and overflow from the feed port. The function of the air induction mechanism 8 is to generate negative pressure at the feed port of the dryer 9 to collect the above-mentioned dust and prevent it from spreading and causing pollution. Generally, the factory is equipped with a centralized dust treatment system, and the dust generated from all parts of the production line is collected by the induced air system into the centralized dust treatment system for treatment. The air induction mechanism 8 is a part of the above-mentioned air induction system. In addition, the air flow in the air induction mechanism 8 is bidirectional. When the dryer 9 discharges materials, a negative pressure is generated in the dryer 9, and the air flows into the dryer 9 from the air induction mechanism 8 .

In the CDA drying production line of the utility model, the outlet of the centrifuge and the inlet of the dryer are closed and connected by the conveying device, and the solid material of CDA is transported from the outlet of the centrifuge to the dryer in a closed environment. The feeding port of the machine eliminates the problem that the solid material is exposed to the external environment, which poses a health threat to personnel and is easy to agglomerate; the change from manual conveying to automatic conveying of the conveying device also saves labor and improves efficiency; The solid material produced in the centrifuge has an equal distribution effect, so as to realize the uniform feeding at the dryer, which improves the quality of the dried product compared with the manual centralized mass feeding, and makes the dried product more dispersed and uniform; The blanking buffer mechanism can prevent the wet and heavy solid materials falling from the discharge port of the centrifuge from impacting the parts below, causing the parts to become loose and affecting the sealing; the blanking funnel can ensure that the solid materials are smoothly fed from the first conveyor. end into the first conveyor.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (8)

1. CDA drying production line, comprises centrifuge, dryer and the vibrating screen that is connected with dryer, it is characterized in that: the discharge port of described centrifuge and the feed port of described dryer pass through feeding device connected, the conveying device includes a first conveyor, a hoist and a second conveyor that are closed and connected in sequence; The conveying device further includes a blanking buffer mechanism and a blanking funnel arranged between the discharge port of the centrifuge and the feed end of the first conveyor. 2 . The CDA drying production line according to claim 1 , wherein the material blanking buffer mechanism is a second material disposed between the discharge port of the centrifuge and the feed end of the first conveyor. 3 . A feeding pipe and an elastic sheet arranged on the inner wall of the first feeding pipe and extending obliquely downward, the upper end of the elastic sheet is fixedly connected with the inner wall of the first feeding pipe, and the lower end is suspended. 3. The CDA drying production line according to claim 2, wherein the elastic sheet is elongated and provided with a plurality of, and the upper end of the elastic sheet is fixed on the inner wall of the first feeding pipe in the same manner On the circumference of the height, the lower ends of the elastic sheets meet at the central axis of the first feeding tube. 4 . The CDA drying production line according to claim 2 , wherein the elastic sheet is elongated and provided with a plurality of elastic sheets, and the elastic sheets are spirally arranged along the length direction of the first feeding tube. 5 . on the inner wall of the first feeding pipe. 5. The CDA drying production line according to any one of claims 2 to 4, wherein the feeding funnel is located between the lower end of the first feeding pipe and the feeding end of the first conveyor , the feeding funnel is communicated with the first feeding pipe, the inlet of the feeding funnel is sealed with the lower end opening of the first feeding pipe, and the outlet of the feeding funnel is connected to the first conveying pipe. The feed end of the machine is hermetically connected. 6. The CDA drying production line according to claim 5, characterized in that: the inlet of the unloading funnel is provided with a sealing cover, and the edge of the sealing cover is sealedly connected with the edge of the inlet of the unloading funnel, and the The center of the sealing cover is provided with a feeding hole, and the edge of the feeding hole is sealedly connected with the edge of the lower end of the first feeding tube. 7. The CDA drying production line according to claim 1, wherein the first conveyor is a scraper conveyor. 8. CDA drying production line as claimed in claim 1, is characterized in that: the feeding port of described dryer is provided with the air-inducing mechanism for collecting dust, and described air-inducing mechanism comprises that the air-inducing mechanism is connected to the drying machine. The pipe at the feed port of the machine and the fan at the other end of the pipe.