4-methylaminopyridine drying device with multi-layer mesh belt

Abstract

The utility model discloses a multilayer mesh belt type drying device for 4-methylamino pyridine, including the casing, install conveying assembly on the casing, and conveying assembly includes first mesh belt, and first mesh belt sets up in the casing, and the inside of first mesh belt is provided with second mesh belt, and is provided with the feeding channel between second mesh belt and first mesh belt, the utility model discloses conveying assembly realizes automatic feeding in and out with two helical blades, and the gap of first mesh belt and second mesh belt is used as the feeding channel clamping conveying material, and through single motor will carry out synchronous drive, can reduce equipment cost and energy consumption, reduce the equipment volume, drying assembly is designed with baffle and air outlet pipe on every layer feeding channel, can realize the individual control of every layer feeding channel hot -blast flow, utilize the centralized collection of box to contain water vapor hot -blast, and through gas -liquid separation board filter out water vapor, again through the air blower and send into the heater, realize the recycling of hot -blast, can effectively improve material drying speed, reduce equipment energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a multi-layer mesh belt drying device for 4-methylaminopyridine. Background Technology

[0002] 4-Methylaminopyridine is an important pharmaceutical and pesticide intermediate. Currently, multi-layer mesh belt dryers are commonly used for drying 4-methylaminopyridine. However, existing multi-layer mesh belt dryers have the following drawbacks: 1. Each mesh belt only transports material through its upper surface and requires an independent motor drive, which not only increases equipment costs and energy consumption but also results in a large equipment size and occupies a significant amount of production space because the lower surface of the mesh belt is not utilized; 2. Hot air blows across the multi-layer mesh belt from top to bottom, causing uneven heating of the material in each layer, with the upper layer having a higher temperature and the lower layer a lower temperature, severely affecting the uniformity of 4-methylaminopyridine drying; at the same time, the hot air carries moisture evaporated from the upper layer into the lower layer, reducing the mass transfer capacity of the lower layer's hot air, slowing down the drying speed of the lower layer of 4-methylaminopyridine, prolonging the drying cycle, and reducing production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a multi-layer mesh belt drying device for 4-methylaminopyridine to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-layer mesh belt drying device for 4-methylaminopyridine, comprising a housing, a conveying assembly installed on the housing, the conveying assembly including a first mesh belt disposed inside the housing, a second mesh belt disposed inside the first mesh belt, a feeding channel disposed between the second mesh belt and the first mesh belt, a drive roller drivenly connected to the first mesh belt, a plurality of second guide rollers drivenly connected to the second mesh belt, a first motor fixedly connected to the housing, and the output end of the first motor fixedly connected to the drive roller, a first synchronous belt drivenly connected to the drive roller, and the first synchronous belt drivenly connected to two of the second guide rollers, a second synchronous belt drivenly connected to each of the two second guide rollers, a spiral blade drivenly connected to the second synchronous belt, a housing sleeved on one of the spiral blades, and one end of the housing being fixedly connected to the housing, and a discharge pipe sleeved on the other spiral blade, and one end of the discharge pipe being fixedly connected to the housing.

[0005] Preferably, the first mesh belt is driven by a plurality of first guide rollers, and the second mesh belt is driven by a plurality of third guide rollers, and the drive rollers, first guide rollers, second guide rollers and third guide rollers are all rotatably connected to the machine housing.

[0006] Preferably, a guide plate is provided in the feeding channel, and the guide plate is fixedly connected to the machine housing.

[0007] Preferably, a feeding funnel is fixedly connected to the housing, a second motor is fixedly connected to the housing, a distributing roller is fixedly connected to the output end of the second motor, and the distributing roller is rotatably connected to the housing. The distributing roller is sleeved inside the housing, and a discharge port is opened on the lower surface of the housing at the position corresponding to the distributing roller, and the discharge port is connected to the input end of the feeding channel.

[0008] Preferably, the discharge pipe has a feed inlet, and the feed inlet is connected to the output end of the feeding channel.

[0009] Preferably, a drying assembly is installed on the housing. The drying assembly includes a baffle plate, a vent, an air outlet pipe, a first air outlet, a connecting pipe, a housing, a gas-liquid separation plate, a drain valve, a second air outlet, a blower, a heater, and an electric valve. A baffle plate is provided at the bottom of the feeding channel, and an air outlet pipe is provided at the top of the feeding channel. Both the baffle plate and the air outlet pipe are fixedly connected to the housing. Multiple first air outlets are evenly distributed on the lower surface of the air outlet pipe. A connecting pipe is fixedly connected to the air outlet pipe and passes through and is fixedly connected to the housing. An electric valve is fixedly connected to the other end of the connecting pipe. A vent is provided on the housing at a position corresponding to the baffle plate. A housing is fixedly connected to the housing, and the vent is connected to the housing.

[0010] Preferably, the box body is provided with multiple gas-liquid separation plates, a drain valve is fixedly connected to the lower surface of the box body, and a second air outlet is provided on the upper surface of the box body.

[0011] Preferably, an induced draft fan is fixedly connected to the upper surface of the housing, and the input end of the induced draft fan is conductively connected to the second air outlet, the output end of the induced draft fan is conductively connected to a heater, and the input end of the electric valve is conductively fixed to the heater.

[0012] This invention provides a multi-layer mesh belt drying device for 4-methylaminopyridine, which has the following advantages: The conveying assembly of this invention utilizes two spiral blades to achieve automatic feeding and discharging. The gap between the first and second mesh belts serves as a feeding channel to clamp and convey materials. Synchronous drive is achieved through a single motor, which can reduce equipment costs and energy consumption, and reduce equipment size. The drying assembly is designed with baffles and air outlet pipes on each layer of the feeding channel, which can realize individual control of the hot air flow rate of each layer of the feeding channel. The box body centrally collects the hot air containing moisture, filters out the moisture through a gas-liquid separation plate, and then sends it into the heater through an induced draft fan, realizing the recycling of hot air, which can effectively improve the drying speed of materials and reduce equipment energy consumption. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the overall front view sectional structure of this utility model;

[0017] Figure 4 This is a side view sectional structural diagram of the box body of this utility model.

[0018] In the diagram: 1. Casing; 2. Conveying assembly; 21. First mesh belt; 22. Second mesh belt; 23. Feeding channel; 24. Drive roller; 25. First guide roller; 26. Second guide roller; 27. Third guide roller; 28. Guide plate; 29. ​​First motor; 210. First synchronous belt; 211. Second synchronous belt; 212. Spiral blade; 213. Shell; 214. Feed hopper; 215. Discharge port; 216. Second motor; 217. Distributing roller; 218. Discharge pipe; 219. Feed port; 3. Drying assembly; 31. Baffle plate; 32. Ventilation port; 33. Air outlet pipe; 34. First air outlet; 35. Connecting pipe; 36. Box; 37. Gas-liquid separation plate; 38. Drain valve; 39. Second air outlet; 310. Exhaust fan; 311. Heater; 312. Electric valve. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please see the appendix Figure 1 -Appendix Figure 4This utility model provides an embodiment of a multi-layer mesh belt drying device for 4-methylaminopyridine, comprising a housing 1, a conveying assembly 2 mounted on the housing 1, the conveying assembly 2 including a first mesh belt 21 disposed inside the housing 1, a second mesh belt 22 disposed inside the first mesh belt 21, a feeding channel 23 disposed between the second mesh belt 22 and the first mesh belt 21, a drive roller 24 drivenly connected to the first mesh belt 21, a plurality of second guide rollers 26 drivenly connected to the second mesh belt 22, a first motor 29 fixedly connected to the housing 1, and the output end of the first motor 29 fixedly connected to the drive roller 24, a first synchronous belt 210 drivenly connected to the drive roller 24, and the first synchronous belt 210 drivenly connected to the drive roller 24. Two second guide rollers 26 are connected to a second synchronous belt 211, and a spiral blade 212 is connected to the second synchronous belt 211. One spiral blade 212 is fitted with a housing 213, one end of which is fixed to the machine housing 1. The other spiral blade 212 is fitted with a discharge pipe 218, one end of which is fixed to the machine housing 1. A first motor 29 drives a transmission roller 24, which in turn drives a first mesh belt 21. The transmission roller 24 drives a second guide roller 26 via the first synchronous belt 210, which in turn drives a second mesh belt 22. The second guide roller 26 then drives the spiral blade 212 via the second synchronous belt 211. The spiral blades 212 inside the housing 213 are used to feed materials, and the spiral blades 212 in the discharge pipe 218 are used to discharge materials. The feeding channel 23 formed between the first mesh belt 21 and the second mesh belt 22 is used to transport materials. Multiple first guide rollers 25 are driven to the first mesh belt 21, and multiple third guide rollers 27 are driven to the second mesh belt 22. The drive roller 24, first guide rollers 25, second guide rollers 26, and third guide rollers 27 are all rotatably connected to the housing 1. The first guide rollers 25 assist in conveying the first mesh belt 21, and the third guide rollers 27 assist in conveying the second mesh belt 22. A guide plate 28 is provided inside the feeding channel 23 and is fixedly connected to the housing 1. 28 is used to guide the material in the feeding channel 23; a feeding funnel 214 is fixedly connected to the housing 213, a second motor 216 is fixedly connected to the housing 1, a distributing roller 217 is fixedly connected to the output end of the second motor 216, and the distributing roller 217 is rotatably connected to the housing 1. The distributing roller 217 is sleeved inside the housing 213, and an outlet 215 is opened on the lower surface of the housing 213 corresponding to the position of the distributing roller 217. The outlet 215 is connected to the input end of the feeding channel 23. The feeding funnel 214 is the input end of the housing 213, and the outlet 215 is the output end of the housing 213. The second motor 216 is used to drive the distributing roller 217, and the distributing roller 217 can make the material fall evenly on the feeding channel 23.A feed inlet 219 is provided on the discharge pipe 218, and the feed inlet 219 is connected to the output end of the feeding channel 23. The feed inlet 219 is the input end of the discharge pipe 218. A drying assembly 3 is installed on the casing 1. The drying assembly 3 includes a baffle plate 31, a vent 32, an air outlet 33, a first air outlet 34, a connecting pipe 35, a housing 36, a gas-liquid separation plate 37, a drain valve 38, a second air outlet 39, an induced draft fan 310, a heater 311, and an electric valve 312. The feeding channel 23... A baffle plate 31 is provided at the bottom of the feeding channel 23, and an air outlet pipe 33 is provided at the top of the feeding channel 23. Both the baffle plate 31 and the air outlet pipe 33 are fixedly connected to the housing 1. Multiple first air outlets 34 are evenly distributed on the lower surface of the air outlet pipe 33. A connecting pipe 35 is fixedly connected to the air outlet pipe 33 and passes through and is fixedly connected to the housing 1. An electric valve 312 is fixedly connected to the other end of the connecting pipe 35. A ventilation opening 32 is provided on the housing 1 at the position corresponding to the baffle plate 31. A box 36 is fixedly connected to the housing 1. The ventilation opening 32 is connected to the inside of the housing 36. The baffle plate 31 is used to guide hot air containing moisture into the housing 36 for centralized treatment through the ventilation opening 32. The air outlet 33 discharges hot air through the first air outlet 34 to dry the material. The connecting pipe 35 is used to connect the air outlet 33 and the electric valve 312, which is used to control the hot air flow. Multiple gas-liquid separation plates 37 are evenly distributed inside the housing 36. A drain valve 38 is fixedly connected to the lower surface of the housing 36. A second air outlet is opened on the upper surface of the housing 36. Outlet 39 and gas-liquid separation plate 37 are used to intercept and separate water vapor, making the hot air dry. Drain valve 38 is used for draining water from housing 36. An induced draft fan 310 is fixedly connected to the upper surface of housing 36, and the input end of the induced draft fan 310 is conductively connected to the second air outlet 39. The output end of the induced draft fan 310 is conductively connected to the heater 311, and the input end of electric valve 312 is conductively fixed to the heater 311. The induced draft fan 310 is used to realize airflow circulation, and the heater 311 is used to heat the airflow to form hot air.

[0021] Working Principle: When using this invention, the first motor 29 on the housing 1 is started. The first motor 29 drives the transmission roller 24, which in turn drives the first mesh belt 21. The transmission roller 24 drives the second guide roller 26 via the first synchronous belt 210, which in turn drives the second mesh belt 22. The second guide roller 26 drives the spiral blades 212 via the second synchronous belt 211. At this time, the material is fed into the housing 213 through the feed funnel 214. The spiral blades 212 in the housing 213 transport the material and fill the grooves on the distributing roller 217. After the set time is reached, the second motor 216 is started. The second motor 216 drives the distributing roller 217 to rotate 180 degrees, sending the material into the discharge port 215. The material then falls into the input end of the feeding channel 23. The first mesh belt 21 and the second mesh belt 22 clamp and transport the material. At the same time, the blower 310 and the heater 311 are started, and the electric valve 312 is opened. The blower 310 promotes airflow circulation, and the heater 311 regulates the airflow. Heating generates hot air, which enters the connecting pipe 35 via the electric valve 312, then enters the air outlet 33, and is discharged from the first air outlet 34 to dry the material. The hot air blowing over the material is blocked by the baffle plate 31 and enters the box 36 through the vent 32. The water vapor in the hot air is intercepted and separated by the gas-liquid separation plate 37. The dried hot air is sent to the heater 311 by the blower 310 through the second air outlet 39 for heating, thus realizing the recycling of hot air. The dried material finally enters the discharge pipe 218 through the feed inlet 219. The spiral blades 212 in the discharge pipe 218 send the material out of the discharge pipe 218. The first guide roller 25 is used to assist in conveying the first mesh belt 21, the third guide roller 27 is used to assist in conveying the second mesh belt 22, the guide plate 28 is used to guide the material in the feeding channel 23, and the drain valve 38 is used to discharge water from the box 36. The heater 311 adopts existing heating technology, such as resistance wire heating, so its principle will not be described in detail.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-layer mesh belt drying device for 4-methylaminopyridine, comprising a housing (1), characterized in that: A conveying assembly (2) is installed on the housing (1). The conveying assembly (2) includes a first mesh belt (21) and is located inside the housing (1). A second mesh belt (22) is located inside the first mesh belt (21). A feeding channel (23) is provided between the second mesh belt (22) and the first mesh belt (21). A drive roller (24) is driven to the first mesh belt (21). Multiple second guide rollers (26) are driven to the second mesh belt (22). A first motor (29) is fixedly connected to the housing (1), and the output end of the first motor (29) is fixedly connected to the drive roller (24). A first synchronous belt (210) is driven to the roller (24), and the first synchronous belt (210) is driven to two of the second guide rollers (26). A second synchronous belt (211) is driven to each of the two second guide rollers (26). A spiral blade (212) is driven to the second synchronous belt (211). A housing (213) is sleeved on one of the spiral blades (212), and one end of the housing (213) is fixed to the machine housing (1). A discharge pipe (218) is sleeved on the other spiral blade (212), and one end of the discharge pipe (218) is fixed to the machine housing (1).

2. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 1, characterized in that: The first mesh belt (21) is connected to a plurality of first guide rollers (25), and the second mesh belt (22) is connected to a plurality of third guide rollers (27). The drive roller (24), the first guide roller (25), the second guide roller (26) and the third guide roller (27) are all rotatably connected to the machine casing (1).

3. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 1, characterized in that: The feeding channel (23) is provided with a guide plate (28), and the guide plate (28) is fixedly connected to the machine casing (1).

4. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 1, characterized in that: A feeding funnel (214) is fixedly connected to the housing (213). A second motor (216) is fixedly connected to the machine housing (1). A distributing roller (217) is fixedly connected to the output end of the second motor (216). The distributing roller (217) is rotatably connected to the machine housing (1). The distributing roller (217) is sleeved inside the housing (213). A discharge port (215) is opened on the lower surface of the housing (213) at the position corresponding to the distributing roller (217). The discharge port (215) is connected to the input end of the feeding channel (23).

5. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 1, characterized in that: The discharge pipe (218) is provided with a feed inlet (219), and the feed inlet (219) is connected to the output end of the feeding channel (23).

6. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 4, characterized in that: A drying assembly (3) is installed on the housing (1). The drying assembly (3) includes a baffle plate (31), a vent (32), an air outlet pipe (33), a first air outlet (34), a connecting pipe (35), a housing (36), a gas-liquid separator plate (37), a drain valve (38), a second air outlet (39), an induced draft fan (310), a heater (311), and an electric valve (312). A baffle plate (31) is provided at the bottom of the feeding channel (23), and an air outlet pipe (33) is provided at the top of the feeding channel (23). 1) Both the air outlet pipe (33) and the air outlet pipe (34) are fixedly connected to the housing (1). Multiple first air outlets (34) are evenly distributed on the lower surface of the air outlet pipe (33). The air outlet pipe (33) is connected to a connecting pipe (35), and the connecting pipe (35) is fixedly connected to the housing (1). The other end of the connecting pipe (35) is connected to an electric valve (312). A ventilation opening (32) is provided on the housing (1) at the position corresponding to the baffle plate (31). A box (36) is fixedly connected to the housing (1), and the ventilation opening (32) is connected to the box (36).

7. The multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 6, characterized in that: The box (36) is equipped with multiple gas-liquid separation plates (37) evenly distributed inside. A drain valve (38) is fixedly connected to the lower surface of the box (36), and a second air outlet (39) is provided on the upper surface of the box (36).

8. A multi-layer mesh belt drying device for 4-methylaminopyridine according to claim 6, characterized in that: A blower (310) is fixedly connected to the upper surface of the housing (36), and the input end of the blower (310) is connected to the second air outlet (39). The output end of the blower (310) is connected to the heater (311), and the input end of the electric valve (312) is fixedly connected to the heater (311).

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