CN222623657U - A material dehumidification and drying system - Google Patents

Abstract

The utility model discloses a material dehumidifying and drying system which comprises a primary drying tower, wherein a spiral hot air channel is communicated with the top of the primary drying tower, dry hot air is introduced into the hot air channel, a high-speed atomizer is further arranged at the top of the inner cavity of the primary drying tower, materials are introduced into the high-speed atomizer through a feed inlet, two branches are formed at the discharge hole at the bottom of the primary drying tower, one branch is connected with a cyclone separator, the other branch is connected with a secondary drying conveyor, the secondary drying conveyor is connected with the cyclone separator through the discharge hole at one side of the bottom, and the bottom end of the cyclone separator is provided with a dry material discharger. The utility model discloses owing to increase and be equipped with secondary stoving conveyer, can carry out the drying process in the primary drying tower after, utilize the secondary stoving conveyer to realize enhancement mode drying dehumidification processing selectively. Can avoid the problem that the drying effect of the non-material is poor, thereby influencing the processing effect of the subsequent traditional Chinese medicine or traditional Chinese medicine decoction pieces.

Description

Material dehumidification drying system

Technical Field

The utility model relates to a drying system, in particular to a material dehumidifying and drying system.

Background

Spray drying is a method of applying systematic technology to material drying, and has been widely used in the fields of traditional Chinese medicine preparation by processing traditional Chinese medicine extractum, traditional Chinese medicine decoction pieces and the like. The working principle is that the high-concentration Chinese medicinal extract is atomized into tiny liquid drops through an atomizer to form spray flow, and the spray flow is instantaneously contacted and mixed with hot air in a drying chamber. In the process of contact and mixing, the solvent evaporates rapidly, so that the effective components in the Chinese medicinal extract are retained, and the effect of the Chinese medicinal extract is maintained while drying is realized.

At present, the spray drying treatment of the traditional Chinese medicine extract is usually carried out in a drying tower for one time, and the drying effect cannot be effectively ensured, so that the processing effect of the subsequent traditional Chinese medicine or traditional Chinese medicine decoction pieces is affected.

Disclosure of utility model

In order to solve the defects of the technology, the utility model provides a material dehumidifying and drying system.

In order to solve the technical problems, the material dehumidifying and drying system comprises a primary drying tower, wherein a spiral hot air channel is communicated with the top of the primary drying tower, and drying hot air is introduced into the hot air channel;

the top of the tower body inner cavity of the primary drying tower is also provided with a high-speed atomizer, the high-speed atomizer is positioned at the spiral center of the hot air channel, and the high-speed atomizer is used for feeding materials through a feed inlet;

Two branches are formed at the bottom discharge hole of the primary drying tower, one branch is connected with a cyclone separator, the other branch is connected with a secondary drying conveyor, the secondary drying conveyor is connected with the cyclone separator through a discharge hole at one side of the bottom, and the bottom end of the cyclone separator is provided with a dry material discharger.

Preferably, the hot air channel is communicated with a hot air distributor, and the hot air distributor is connected with a blower through a heat preservation pipeline (a heat exchanger is connected to the hot air distributor).

Preferably, the two branches at the bottom discharge hole of the primary drying tower are provided with main tower material discharging devices.

Preferably, the secondary drying conveyor comprises an organic shell, the shell is provided with double-layer walls, an electric heater is wound and laid in a clamping cavity formed by the double-layer walls, and a spiral stirrer is arranged in an inner cavity of the secondary drying conveyor.

Preferably, the cyclone separator is connected with an induced draft fan, and the induced draft fan is used for being connected with an exhaust gas treatment system.

Preferably, the tail gas treatment system comprises a spray tower, the induced draft fan is connected with the spray tower, the spray tower is arranged in the water film dust remover, and the water film dust remover is communicated with the spray tower through a circulating pump.

Preferably, the primary drying tower is provided with a detection port on the bottom side.

The utility model discloses a material dehumidifying and drying system, which is additionally provided with a secondary drying conveyor, so that after drying treatment is carried out in a primary drying tower, the secondary drying conveyor is selectively utilized to realize enhanced drying and dehumidifying treatment. Because the drying hot air of the primary drying tower is heated by the heat exchanger by utilizing the waste heat energy, the problems of insufficient heat energy of the drying hot air and unreliable drying and dehumidifying effects possibly exist, and the additionally arranged secondary drying and conveying is taken as a supplementary means, the problem of poor drying effect without materials, thereby influencing the processing effect of the subsequent traditional Chinese medicine or traditional Chinese medicine decoction pieces, can be avoided.

Drawings

FIG. 1 is a schematic diagram of the system of the present utility model.

The device comprises a primary drying tower, a high-speed atomizer, a blower, a heat exchanger, a hot air distributor, a feeding port, a hot air channel, a main tower material discharging device, a secondary drying conveyor, a primary drying tower, a secondary drying conveyor, a water film dust remover, a circulating pump, a heat preservation pipeline, a detection port, a primary drying tower, a secondary drying tower, a high-speed atomizer, a water film dust remover, a circulating pump, a heat preservation pipeline, a secondary drying conveyor, a water film dust remover, a detection port and a detection port.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

The utility model discloses a material dehumidifying and drying system, the structure composition of the whole system is shown in figure 1, and the system mainly comprises a primary drying tower 1, a secondary drying conveyor 9, a cyclone separator 12, an air supply system and a tail gas treatment system.

The primary drying tower 1 is a main place for dehumidifying and drying materials, firstly, a spiral hot air channel 7 is connected to the top of the primary drying tower 1, and the hot air channel 7 is used for being connected with an air supply system so as to realize the feeding of dry hot air.

The air supply system specifically comprises an air blower 3, a heat exchanger 4 and a hot air distributor 5, wherein the air blower 3 is introduced into an air source and is connected with the heat exchanger 4, the heat exchanger 4 is connected with the hot air distributor 5 through a heat insulation pipeline, and then the hot air distributor 5 is communicated with the hot air channel 7 of the primary drying tower 1. The flowing air source fed by the blower 3 is converted into dry hot air at the heat exchanger 4, and the dry hot air is distributed into the hot air channel 7 by the hot air distributor 5 and then spirally enters the primary drying tower 1.

The top of the tower body inner cavity of the primary drying tower 1 is also provided with a high-speed atomizer 2, the high-speed atomizer 2 is positioned at the spiral center of the hot air channel 7, and the high-speed atomizer 2 is used for feeding materials through the feed inlet 6, so that the materials to be dried are atomized into particles by the high-temperature atomizer 3, and the drying hot air enters along the circumferential direction of the high-temperature atomizer in a spiral manner and can be instantaneously contacted with the atomized particles, thereby realizing drying and dehumidification treatment.

Because the heating capacity of the heat exchanger 4 is limited, the medicine particles which are subjected to drying and dehumidifying treatment in the primary drying tower 1 still possibly do not meet the discharging requirement, therefore, the material dehumidifying and drying system disclosed by the invention is connected with a secondary drying conveyor 9 at the bottom discharging hole of the primary drying tower 1, and specifically comprises:

Two branches are formed at the bottom discharge port of the primary drying tower 1, and a main tower material discharger 8 is arranged on each branch to control the opening or closing of the branch. Wherein, one branch is directly connected with the cyclone separator 12, and when the humidity of the material to be dried and dehumidified in the primary drying tower 1 meets the requirement, the dried material is directly sent to the cyclone separator. The other path is connected with a secondary drying conveyor 9, and if the humidity of the materials dried and dehumidified in the primary drying tower 1 does not meet the requirement, the dried materials in the primary drying tower 1 are sent into the secondary drying conveyor 9 for enhanced dehumidification and drying treatment.

As shown in fig. 1, the secondary drying conveyor 9 comprises an organic shell, the shell is provided with double-layer walls, an electric heater 10 is wound and laid in a clamping cavity formed by the double-layer walls, and a spiral stirrer 11 is arranged in an inner cavity of the secondary drying conveyor 9. The electric heater 10 presets the heating temperature so that the electric heater does not damage the current dry and dehumidified material, and the spiral stirrer 11 is used for transporting the dry material forward while stirring and mixing the dry material. The secondary drying conveyor 9 is connected with a cyclone separator 12 through a discharge hole at one side of the bottom, so that the dried materials can enter the cyclone separator 12.

And the gas and the solid are separated in the cyclone separator 12, and a dry material discharger 13 is arranged at the bottom end of the cyclone separator 12, so that the discharge of the separated dry end product is satisfied. And the separated gas tail gas is introduced into the tail gas treatment system through an induced draft fan 14 connected with the cyclone separator 12.

The tail gas treatment system is formed by adopting common tail gas treatment and comprises a spray tower 14, wherein a draught fan 14 is connected with a spray tower 15, the spray tower 15 is arranged in a water film dust remover 16, and the water film dust remover 16 is communicated with the spray tower 15 through a circulating pump 17. This is the prior art and will not be described in detail here.

In order to determine the humidity of the dry material after drying and dehumidification in the primary spray tower 1, a detection port 19 is provided on the bottom side of the primary spray tower 1.

In summary, for the material dehumidifying and drying system disclosed by the utility model, the specific drying and dehumidifying process is as follows:

Clean gas filtered by the filter is sent into the heat exchanger 4 by the blower 3 to exchange heat, the flowing gas wind source is heated into dry hot air, the heat energy of the heat exchanger is derived from waste heat energy (such as waste heat energy of a boiler plant), the dry hot air is distributed into the hot air channel 7 by the hot air distributor 5, and the hot air channel 7 is spiral, so that the dry hot air enters in a spiral shape;

Simultaneously, the high-concentration traditional Chinese medicine extract is pumped into the high-speed atomizer 2 through the feed inlet 6 by a pressure pump, is dispersed into very fine particles like fog through the mechanical atomization effect of the atomizer, and along with synchronous feeding of the drying hot air, atomized particles are instantaneously contacted and mixed with the drying hot air, the solvent in the atomized particles is rapidly evaporated, and the atomized particles become dry particles and are gathered at the bottom of the primary drying tower under the action of gravity.

And (3) detecting the humidity condition of the dry particles by using a detection port 19, and if the humidity of the materials dried and dehumidified in the primary drying tower 1 meets the requirement, starting a main tower material discharger connected with the cyclone separator 12 to enable the dry materials to directly enter the cyclone separator 12 for dust removal treatment. If the humidity of the materials to be dried and dehumidified in the primary drying tower 1 does not meet the requirement, a main tower material discharging device connected with the secondary drying conveyor 9 is started, so that the dried materials enter the secondary drying conveyor 9 to be subjected to enhanced dehumidification drying treatment.

In the cyclone separator 12, the separated dry end product is discharged from the dry material discharger 13, the separated waste is introduced into the spray tower 15 by the induced draft fan 14 for spray sedimentation and is treated by the water film dust remover 16, and the water purified by the water film dust remover 16 can be used as spray water of the spray tower 15 for recycling.

The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.

Claims (7)

1. A material dehumidifying and drying system comprises a primary drying tower (1), and is characterized in that a spiral hot air channel (7) is communicated with the top of the primary drying tower (1), and drying hot air is introduced into the hot air channel (7);

The top of the tower body inner cavity of the primary drying tower (1) is also provided with a high-speed atomizer (2), the high-speed atomizer (2) is positioned at the spiral center of the hot air channel (7), and the high-speed atomizer (2) is introduced with materials through a feed inlet (6);

Two branches are formed at the bottom discharge hole of the primary drying tower (1), one branch is connected with a cyclone separator (12), the other branch is connected with a secondary drying conveyor (9), the secondary drying conveyor (9) is connected with the cyclone separator (12) through a discharge hole at one side of the bottom, and a dry material discharger (13) is arranged at the bottom end of the cyclone separator (12).

2. The material dehumidifying and drying system according to claim 1, wherein the hot air channel (7) is communicated with a hot air distributor (5), the hot air distributor (5) is connected with a heat exchanger (4) through a heat preservation pipeline (18), and the heat exchanger (4) is connected with a blower (3).

3. The material dehumidifying and drying system according to claim 1, wherein the main tower material discharging device (8) is arranged on both branches at the bottom discharging hole of the primary drying tower (1).

4. The material dehumidifying and drying system according to claim 3, wherein the secondary drying conveyor (9) comprises a casing, the casing is provided with double-layer walls, an electric heater (10) is wound and laid in a clamping cavity formed by the double-layer walls, and a spiral stirrer (11) is arranged in an inner cavity of the secondary drying conveyor (9).

5. The material dehumidifying and drying system as claimed in claim 1 or 4, wherein the cyclone separator (12) is connected with an induced draft fan (14), and the induced draft fan (14) is used for connecting with an exhaust gas treatment system.

6. The material dehumidification drying system as set forth in claim 5, wherein the tail gas treatment system comprises a spray tower (15), an induced draft fan (14) is connected with the spray tower (15), the spray tower (15) is arranged in a water film dust remover (16), and the water film dust remover (16) is communicated with the spray tower (15) through a circulating pump (17).

7. The material dehumidifying and drying system as claimed in claim 4, wherein a detection port (19) is formed on one side of the bottom of the primary drying tower (1).