Drying equipment for chemical products

Abstract

The utility model discloses drying equipment for chemical products, which comprises a base and a drying box, the drying box is fixed on a support plate at the top of the base, a vibration mechanism is arranged at the bottom of the support plate, the drying box is formed by stacking and combining a plurality of layers of disc bodies up and down, a top plate is further arranged at the top of the disc body at the uppermost layer, and a feeding port is arranged on the top plate. Each layer of tray body comprises an inner annular baffle plate, an outer annular baffle plate and a spirally downward bottom plate, a sealing plate is arranged at a position where the end parts of the lower side and the higher side of the bottom plate are intersected, a feeding port is formed in the side, close to the higher side of the bottom plate, of the sealing plate, and a discharging port is formed in the side, close to the lower side of the bottom plate, of the sealing plate. According to the drying equipment for the chemical products, blanking is conducted in a vibration mode, drying is conducted layer by layer, the products can be dried more efficiently due to the fact that vibration enables the products to jump, accumulation of the products is avoided, continuous feeding and discharging can be achieved in the mode, in addition, graded crushing from coarse to fine is adopted, crushing is conducted during blanking of each layer of disc body, and the crushing efficiency is greatly improved. And further drying is prevented from being influenced by overlarge cakes.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, and particularly relates to a drying device for chemical products. Background Art

[0002] Medicine is a substance or preparation for preventing, treating, or diagnosing diseases of humans and livestock. Drugs are classified into natural drugs and synthetic drugs according to their sources. Medicine can also be a substance that prevents diseases, treats diseases, reduces pain, promotes health, or enhances the body's resistance to diseases or helps diagnose diseases.

[0003] When synthesizing medicine, some preliminary intermediates need to be synthesized. After these intermediates are synthesized by chemical methods and contain components such as solvents, these solvents need to be removed by drying after post-treatment. The existing drying equipment is generally a drying oven. When drying in the drying oven, the products are generally laid flat in the drying tray and taken out after drying for a period of time. It is found in actual application that although this drying method and equipment are relatively mature, there are the following defects: (1) Due to the different properties of different products, some products are prone to caking after drying, and a large amount of solvent is wrapped inside and not dried; (2) If the products are laid too thickly, the drying effect will be very poor and the drying efficiency will be very low; (3) It is best to add all the materials to be dried into the oven at one time, and it is not suitable to add materials midway, and the overall working efficiency is relatively low. Therefore, a drying device for chemical products is proposed to solve the above problems. Content of the Utility Model

[0004] 1. Technical problems to be solved:

[0005] In view of the above technical problems, the utility model provides a drying device for chemical products.

[0006] 2. Technical solutions:

[0007] A drying device for chemical products includes a base and a drying oven. The drying oven is fixed on a support plate at the top of the base. A vibration mechanism is provided at the bottom of the support plate. The drying oven is composed of multiple layers of trays stacked up and down. A top plate is further provided at the top of the topmost tray. A feeding port is provided on the top plate. Each layer of tray includes an inner annular baffle, an outer annular baffle, and a bottom plate spiraling downward. Sealing plates are provided at the positions where the lower and higher ends of the bottom plate intersect. A feeding port is provided on the side of the sealing plate close to the higher side of the bottom plate, and a discharging port is provided on the side of the sealing plate close to the lower side of the bottom plate. Both the feeding port and the discharging port are arranged on the outer annular baffle. The discharging port of the upper layer of tray is connected to the feeding port of the crushing mechanism through a pipeline. The discharging port of the crushing mechanism is connected to the feeding port of the lower layer of tray through a pipeline. A heating mechanism is provided at the bottom of the bottom plate of each layer of tray. An air extraction port is further provided on the outer annular baffle of each layer of tray. The air extraction port is connected to an air extraction assembly. The crushing mechanisms from top to bottom perform hierarchical crushing of the chemical products from coarse to fine.

[0008] Further, an installation hole is provided at a position of the bottom plate close to the blanking port. A grading screen is installed on the installation hole, and a material guiding groove is provided below the grading screen. The outlet end of the material guiding groove extends to a side of the lower layer disk body sealing plate close to the higher side of the bottom plate.

[0009] Further, the vibration mechanism includes a mounting seat fixed to the bottom of the support plate, and a vibration motor is provided on the mounting seat.

[0010] Further, a shock pad is provided between the support plate and the base.

[0011] Further, the crushing mechanism includes a crushing chamber, and two crushing rollers are arranged in parallel in the crushing chamber. The crushing rollers are connected to a driving mechanism, and the two crushing rollers rotate towards each other towards the center.

[0012] Further, the driving mechanism includes a central shaft fixedly connected to the crushing roller. The central shafts of two adjacent crushing mechanisms are connected by a belt pulley, and the belt pulley is driven by a motor.

[0013] Further, the heating mechanism includes a plurality of heat exchange disks arranged at the bottom of the bottom plate. Two ends of the heat exchange disk are respectively connected to a heat exchange intake main pipe and a heat exchange outlet main pipe through a first branch pipe.

[0014] Further, the air extraction assembly includes an air extraction main pipe. The air extraction main pipe is connected to an air extraction port through a second branch pipe. The air extraction main pipe is connected to a cyclone collector, and the cyclone collector is connected to an air extraction pump.

[0015] 3. Beneficial effects:

[0016] The drying equipment for chemical products of the present utility model adopts a vibrating method for blanking and drying layer by layer. Since vibration will cause the products to jump, product accumulation will not occur, and thus more efficient drying can be achieved. Moreover, this method can continuously feed and discharge materials. In addition, it adopts grading crushing from coarse to fine, and crushing is carried out when blanking on each layer of the disk body, avoiding the influence of over-large lumps on further drying. During grading crushing, only a certain size is crushed each time, avoiding the influence of internal wet materials on crushing. The crushing is simpler, and after the products are crushed, the influence of product caking on drying can be avoided. Description of the drawings

[0017] Figure 1 is a front view of the drying equipment for chemical products of the present utility model;

[0018] Figure 2 is a top view of the disk body of the drying equipment for chemical products of the present utility model;

[0019] Figure 3 is a schematic diagram of the crushing mechanism of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the heat exchange disk of the present utility model. Detailed implementation mode

[0021] The present utility model will be specifically described below with reference to the accompanying drawings.

[0022] As shown in the attached Figure 1 to the attached Figure 4 ,

[0023] Specific embodiment: A drying device for chemical products, comprising a base 1 and a drying box 2. The drying box 2 is fixed on a support plate 3 at the top of the base 1. A vibration mechanism 4 is provided at the bottom of the support plate 3. The drying box 2 is composed of multiple layers of disk bodies 5 stacked up and down. A top plate 6 is further provided at the top of the topmost disk body 5. A feeding port 7 is provided on the top plate 6. Each layer of disk body 5 includes an inner annular baffle 51, an outer annular baffle 52, and a bottom plate 53 spiraling downward. A sealing plate 54 is provided at the intersection of the lower and higher ends of the bottom plate 53. A feeding port 55 is provided on the side of the sealing plate 54 close to the higher side of the bottom plate 53. A discharging port 56 is provided on the side of the sealing plate 54 close to the lower side of the bottom plate 53. Both the feeding port 55 and the discharging port 56 are provided on the outer annular baffle 52. The discharging port 56 of the upper layer of disk body 5 is connected to the feeding port of a crushing mechanism 8 through a pipeline. The discharging port of the crushing mechanism 8 is connected to the feeding port 55 of the lower layer of disk body 5 through a pipeline. A heating mechanism 9 is provided at the bottom of the bottom plate 53 of each layer of disk body 5. An air extraction port 10 is further provided on the outer annular baffle 52 of each layer of disk body 5. The air extraction port 10 is connected to an air extraction assembly 11. The crushing mechanism 8 from top to bottom performs graded crushing of the chemical products from coarse to fine.

[0024] When the drying device for chemical products of the present utility model is in use, the chemical products to be dried are put in from the top feeding port 7 and fall into the topmost disk body 5. When the vibration mechanism 4 works, the entire drying box 2 will vibrate. The chemical products will slide downward along the bottom plate 53. During the sliding process, the heating mechanism 9 heats the bottom plate, thereby drying the chemical products. The steam is extracted by the air extraction assembly 11 through the air extraction port 10. The chemical products enter the crushing mechanism 8 through the discharging port 56 of the topmost disk body 5 for crushing, and after crushing, they continue to enter the next layer of disk body 5 for drying. Since the graded crushing method from coarse to fine is adopted in this embodiment, each time the product will pass through the outer side of the initially dried and caked upper layer, reducing the solvent content. The dried product is easier to crush, and each time it does not need to be crushed too fine relative to the initial size, so the crushing is simpler.

[0025] The bottom plate 53 is provided with mounting holes at the position close to the blanking port 56. A grading screen 12 is installed on the mounting holes. A material guiding groove is provided below the grading screen 12, and the outlet end of the material guiding groove extends to the higher side of the closing plate 54 of the lower layer plate body 5 close to the bottom plate 53. The grading screen 12 can screen out unagglomerated chemical raw materials or chemical raw materials with relatively small agglomerates and directly send them to the next layer for drying. The aperture of the grading screen 12 from top to bottom gradually decreases, and the aperture of the upper grading screen 12 is generally the same as the size of the product that can be obtained by crushing by the lower layer crushing mechanism 8.

[0026] The vibration mechanism 4 includes a mounting seat 41 fixed to the bottom of the support plate 3, and a vibration motor 42 is provided on the mounting seat 41. The whole drying box 2 is vibrated by the vibration motor 42, so that the product vibrates and descends along the bottom plate. The product is dried while falling, which saves time. Moreover, the product vibrates and jumps, so it will not accumulate and is easier to dry.

[0027] A shock pad 13 is provided between the support plate 3 and the base 1 to reduce the vibration of the base 1.

[0028] The crushing mechanism 8 includes a crushing chamber 81. Two crushing rollers 82 are arranged in parallel in the crushing chamber 81. The crushing rollers 82 are connected to a driving mechanism, and the two crushing rollers 82 rotate towards the center. The driving mechanism includes a central shaft fixedly connected to the crushing roller 82. The central shafts of two adjacent crushing mechanisms 8 are connected by a belt pulley 14, and the belt pulley 14 is driven by a motor. The two crushing rollers are driven by the motor to rotate towards the center, so as to crush large product agglomerates. The working principle is the same as that of the existing double-roller crusher and will not be described in detail.

[0029] The heating mechanism 9 includes a plurality of heat exchange plates 91 arranged at the bottom of the bottom plate 53. The two ends of the heat exchange plate 91 are respectively connected to a heat exchange intake main pipe 92 and a heat exchange outlet main pipe 93 through first branch pipes. The two ends of the heat exchange plate 91 are respectively on the front and back sides of the grading screen 12 to avoid interfering with the work of the grading screen 12.

[0030] The air extraction assembly 11 includes an air extraction main pipe 111. The air extraction main pipe 111 is connected to the air extraction port 10 through a second branch pipe. The air extraction main pipe 111 is connected to a cyclone collector 112 to collect the possible product fine powder sucked out. The cyclone collector 112 is connected to an air extraction pump 113.

[0031] Although the present utility model has been disclosed above with preferred embodiments, they are not used to limit the present utility model. Any person skilled in this art can make various changes or modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the protection scope of the claims of this application.

Claims

1. A drying device for chemical products, characterized in that: The invention comprises a base and a drying box, wherein the drying box is fixed on a supporting plate on the top of the base, a vibrating mechanism is arranged at the bottom of the supporting plate, the drying box is composed of multiple layers of disc bodies stacked up and down, a top plate is also arranged on the top of the topmost disc body, a feeding port is arranged on the top plate, each layer of the disc body comprises an inner annular baffle, an outer annular baffle and a bottom plate spirally downward, a sealing plate is arranged at the intersection of the lower and higher end portions of the bottom plate, a loading port is arranged on the side of the sealing plate close to the higher side of the bottom plate, a unloading port is arranged on the side of the sealing plate close to the lower side of the bottom plate, both the loading port and the unloading port are arranged on the outer annular baffle, a unloading port pipeline of the upper disc body is connected to the feeding port of the crushing mechanism, a discharging port pipeline of the crushing mechanism is connected to the loading port of the lower disc body, a heating mechanism is arranged at the bottom of the bottom plate of each layer of the disc body, an exhaust port is also arranged on the outer annular baffle of each layer of the disc body, the exhaust port is connected to the exhaust component, and the top-down crushing mechanism performs graded crushing of the chemical products from coarse to fine.

2. The drying equipment for chemical products according to claim 1, characterized in that: The bottom plate is provided with a mounting hole near the feeding port, a grading screen is installed on the mounting hole, a material guide trough is provided below the grading screen, and the outlet end of the material guide trough extends to the higher side of the bottom plate of the lower disk body sealing plate.

3. The drying equipment for chemical products according to claim 2, characterized in that: The vibration mechanism comprises a mounting seat fixed on the bottom of the support plate, and a vibration motor is arranged on the mounting seat.

4. The drying equipment for chemical products according to claim 1, characterized in that: A shock-absorbing pad is arranged between the support plate and the base.

5. The drying equipment for chemical products according to claim 2, characterized in that: The crushing mechanism comprises a crushing chamber, in which two crushing rollers are arranged in parallel, the crushing rollers are connected to a driving mechanism, and the two crushing rollers rotate towards the center.

6. The drying equipment for chemical products according to claim 5, characterized in that: The driving mechanism comprises a central shaft fixedly connected to the crushing roller, and the central shafts of two adjacent crushing mechanisms are connected via a belt pulley, which is driven by a motor.

7. The drying equipment for chemical products according to claim 5, characterized in that: The heating mechanism comprises a plurality of heat exchange plates arranged at the bottom of the base plate, and two ends of the heat exchange plates are respectively connected to a heat exchange air inlet main pipe and a heat exchange air outlet main pipe through a first branch pipe.

8. The drying equipment for chemical products according to claim 7, characterized in that: The air extraction component comprises an air extraction main pipe, the air extraction main pipe is connected to the air extraction port through a second branch pipe, the air extraction main pipe is connected to a cyclone collector, and the cyclone collector is connected to an air extraction pump.

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