CN204678805U - A kind of fluidized bed drying device of chemical material - Google Patents

Abstract

The utility model discloses a fluidized bed drying device for chemical materials, which comprises a bed body and a heating assembly connected with an air inlet to provide hot air for the bed body. A vibrating screen for filtering materials is installed in the material room, and a drying cylinder is installed on one side of the screen in the bed, and a rotating roller extending to the feeding chamber is installed in the drying cylinder. The rotating roller in the cylinder is provided with feeding blades, and the heating component is connected with the drying cylinder through the air supply pipe. Compared with the prior art, the utility model uses a vibrating screen to sieve materials, and the materials with smaller particles fall into the bed for heat exchange and drying under fluidization, while the materials with larger particles are collected by the collection hopper. It is dried separately in the drying cylinder, and after it is dried, it is broken up by the rotating beating blade to enter the bed body, so as to improve the drying efficiency of the fluidized bed, improve the product quality, and avoid the phenomenon of local dead beds.

Description

A fluidized bed drying device for chemical materials

【Technical field】

The utility model relates to the technical field of chemical material drying equipment, in particular to a fluidized bed drying device for chemical material.

【Background technique】

The drying of solid materials is an extremely important step in the chemical industry. For example, in medicine, food and feed additives, it is necessary to dry the in-process or final materials. The traditional methods are artificial drying, machine drying, etc. However, these methods exist Disadvantages such as unchanged site and low work efficiency.

For this reason, the fluidized bed is often used for drying materials. The wet materials entering the fluidized bed contact with hot air in the fluidized bed, and after being uniformly and fully mixed, the moisture is removed to achieve drying; The discharge port of the chemical bed is discharged. However, when the existing fluidized bed dries the material with large particles or lumps, it is difficult to fluidize the part with large particles, the quality of the product is poor, and it cannot be discharged from the discharge port. It is easy to cause local dead bed phenomenon in the body, which greatly reduces the drying efficiency of the fluidized bed.

【Content of utility model】

The purpose of this utility model is to solve the problems in the prior art, and propose a fluidized bed drying device for chemical materials, which can screen materials according to particle size, and dry materials with larger particles separately, so as to improve drying efficiency and product quality.

In order to achieve the above purpose, the utility model proposes a fluidized bed drying device for chemical materials, which includes a bed with an air inlet at the bottom and a heating assembly connected to the air inlet to provide hot air for the bed. The inner cavity of the bed body is connected to a feeding chamber, and a vibrating screen for filtering materials is installed obliquely in the feeding chamber, and a drying cylinder on one side of the screen is installed obliquely in the bed, so that A collection hopper is provided between the screen and the drying cylinder, a filter is provided at the bottom of the drying cylinder, a rotating roller extending to the feeding chamber is provided in the drying cylinder, and a roller located in the drying cylinder Beating blades are arranged on the rotating roller, and the heating assembly is connected with the drying cylinder through an air supply pipe.

As a preference, a cooling chamber is separated by a partition plate in the bed, a cooling fan that can deliver cooling air is connected to the bottom of the cooling chamber, a discharge port is arranged on the cooling chamber, and one end of the rotating roller rotates It is connected to the side wall of the feed chamber, and the other end is rotatably connected to the partition plate.

Preferably, the screen is connected to the side wall of the feeding chamber by a spring support, and a vibration motor is provided at the bottom of the screen to drive its vibration.

Preferably, the heating assembly includes a blower and a heater, the blower is connected to the heater, the heater is connected to the air inlet through an air inlet pipe, one end of the air supply pipe is connected to the air inlet pipe, and the other end Connect with the drying drum.

Preferably, the rotating roller located in the feeding chamber is provided with beating blades.

Preferably, an electric heating wire is arranged inside the drying cylinder.

Beneficial effects of the utility model: Compared with the prior art, the utility model utilizes a vibrating screen to sieve materials, and the materials with smaller particles fall into the bed for heat exchange and drying under fluidization, while the materials with larger particles The materials are collected from the collection hopper into the drying cylinder for separate drying, and after they are dried, they are scattered by the rotating beating blades to make them enter the bed, so as to improve the drying efficiency of the fluidized bed, improve the product quality, and avoid The phenomenon of partial death bed occurs.

The features and advantages of the utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

【Description of drawings】

Fig. 1 is the structural representation of the utility model;

In the figure: 1-air inlet, 2-bed body, 3-feeding chamber, 4-screen, 5-drying cylinder, 6-collecting hopper, 7-filter, 8-rotating roller, 9-beating Blade, 10-air supply pipe, 11-partition plate, 12-cooling chamber, 13-cooling fan, 14-outlet, 15-vibration motor, 16-blower, 17-heater, 18-inlet pipe, 19-electric heating wire, 20-spring.

【Detailed ways】

Referring to Fig. 1, the utility model includes a bed body 2 with an air inlet 1 at the bottom and a heating assembly connected to the air inlet 1 to provide hot air for the bed body 2. A connected feed chamber 3, in which a vibrating screen 4 for filtering materials is inclined, the screen 4 is supported by a spring 20 and connected to the side wall of the feed chamber 3, the screen The bottom of the net 4 is provided with a vibrating motor 15 that can drive its vibration, and a drying cylinder 5 located on one side of the screen 4 is installed obliquely in the bed 2, and a drying cylinder 5 is arranged between the screen 4 and the drying cylinder 5. There is a collecting hopper 6, the bottom of the drying cylinder 5 is provided with a filter screen 7, and the drying cylinder 5 is provided with a rotating roller 8 extending to the feeding chamber 3, which is located on the rotating roller 8 in the drying cylinder 5 A beating blade 9 is provided, and the heating assembly is connected to the drying cylinder 5 through an air supply pipe 10 , and the heating assembly is used to heat the drying cylinder 5 . After the above scheme is adopted, the material falls from the feeding chamber 3 onto the screen 4, and the material is sieved by the vibration of the screen, and the material with smaller particles falls into the bed 2 for heat exchange drying under fluidization, while The material with larger particles is collected by the collection hopper 6 into the drying cylinder 5 for separate drying. After drying, the material that can pass through the filter screen 7 is broken up by the beating blade 9 driven by the rotating roller 8 so that the material that can pass through the filter screen 7 enters the bed. In the body 2, until all fall into it, the drying efficiency of the fluidized bed is improved, the product quality is improved, and the phenomenon of partial dead bed is avoided.

Specifically, a cooling chamber 12 is separated by a partition plate 11 in the bed body 2, and the bottom of the cooling chamber 12 is connected with a cooling fan 13 that can deliver cooling air to it. The cooling chamber 12 is provided with a discharge port 14, One end of the rotating roller 8 is rotatably connected to the side wall of the feeding chamber 3, and the other end is rotatably connected to the partition plate 11, and the material after heat exchange in the bed 2 finally enters the cooling chamber 12 Cooling in the middle, and finally discharged from the discharge port 14.

Specifically, the heating assembly includes a blower 16 and a heater 17, the blower 16 is connected to the heater 17, the heater 17 is connected to the air inlet 1 through an air inlet pipe 18, and one end of the air supply pipe 10 It is connected with the air inlet pipe 18, and the other end is connected with the drying drum 5, and the blower 16 is used to deliver air to the heater 17. After the air is heated by the heater 17, it is discharged into the drying drum 5 and the bed body 2 for drying. Materials of different particle sizes are dried.

Specifically, the rotating roller 8 located in the feeding chamber 3 is provided with a beating blade 9, which can directly break up the block-shaped material in the feeding chamber 3, so that it can fall into the bed smoothly. 2, to improve the drying efficiency, the drying cylinder 5 is provided with an electric heating wire 19, and the electric heating wire 19 is used to heat the drying cylinder 5 to make up for the shortcoming of insufficient heat of the hot air discharged by the heater 17 , improve the drying efficiency of the material in the drying cylinder 5.

The above-mentioned embodiment is an illustration of the utility model, not a limitation of the utility model, and any scheme after a simple transformation of the utility model belongs to the protection scope of the utility model.

Claims (6)

1. the fluidized bed drying device of a chemical material, comprise bottom and the bed body (2) of air inlet (1) is set and to be connected with described air inlet (1) be that bed body (2) provides the heating component of hot blast, the feed space (3) of the inner space of bottom and described bed body (2) is set in bed body (2), it is characterized in that: the tilted vibratile screen cloth (4) be provided with for filter material of described feed space (3), described bed body (2) is tilted is provided with the oven dry cylinder (5) being positioned at screen cloth (4) side, bunker for collecting (6) is provided with between described screen cloth (4) and oven dry cylinder (5), described oven dry cylinder (5) bottom is provided with filter screen (7), dry in cylinder (5) and be provided with the live-rollers (8) extending to feed space (3), be positioned at the live-rollers (8) of drying cylinder (5) and be provided with dnockout blade (9), described heating component is connected with described oven dry cylinder (5) through ajutage (10).

2. the fluidized bed drying device of a kind of chemical material according to claim 1, it is characterized in that: in described bed body (2), be separated with cooling chamber (12) through demarcation strip (11) point, described cooling chamber (12) bottom is connected with the cooling blower (13) that can be its conveying cooling air, cooling chamber (12) be provided with discharging opening (14), one end of described live-rollers (8) is rotationally connected on the sidewall of feed space (3), on the described demarcation strip of the rotating connection of the other end (11).

3. the fluidized bed drying device of a kind of chemical material according to claim 1, it is characterized in that: described screen cloth (4) is by spring (20) support and connection on the sidewall of described feed space (3), and screen cloth (4) bottom is provided with the vibrating motor (15) that it can be driven to vibrate.

4. the fluidized bed drying device of a kind of chemical material according to claim 2, it is characterized in that: described heating component comprises air blast (16) and heater (17), described air blast (16) is connected with heater (17), described heater (17) is connected with described air inlet (1) through blast pipe (18), described ajutage (10) one end is connected with blast pipe (18), and the other end is connected with described drying roller (5).

5. the fluidized bed drying device of a kind of chemical material according to claim 3, is characterized in that: described in be positioned at feed space (3) live-rollers (8) be provided with dnockout blade (9).

6. the fluidized bed drying device of a kind of chemical material as claimed in any of claims 1 to 4, is characterized in that: be provided with electrical heating wire (19) in described oven dry cylinder (5).