CN213803473U - Modular low-temperature belt type drying machine - Google Patents
Modular low-temperature belt type drying machine Download PDFInfo
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- CN213803473U CN213803473U CN202022700928.4U CN202022700928U CN213803473U CN 213803473 U CN213803473 U CN 213803473U CN 202022700928 U CN202022700928 U CN 202022700928U CN 213803473 U CN213803473 U CN 213803473U
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Abstract
The utility model relates to a modular low-temperature belt type drier which is formed by arranging and combining a plurality of drier monomers; the drying machine monomer is internally provided with two cavities side by side, one cavity is a heat exchange cavity, the other cavity is a drying cavity, the upper part between the heat exchange cavity and the drying cavity is communicated through an air inlet, the lower part between the heat exchange cavity and the drying cavity is communicated through an air return inlet, an air inlet fan and a heat exchange module are arranged in the heat exchange cavity, and the heat exchange fan is positioned above the heat exchange module and is opposite to the air inlet; the drying chambers of all the drying machine monomers are communicated to form a drying chamber, and a conveying belt is arranged in the drying chamber; a fresh air inlet is formed in the dryer monomer; an air exhaust fan is also arranged in the heat exchange cavity and is connected with the air return port; the heat exchange module is formed by connecting a precooler, a condenser, a preheater and a heater sequentially through an air duct; and an air inlet pipe is also arranged in the heat exchange cavity and is connected with a fresh air inlet and an air channel connected with a condenser and a preheater through the air inlet pipe.
Description
Technical Field
The utility model relates to a sludge treatment technical field, concretely relates to modularization low temperature belt drier.
Background
Sludge drying is a process of removing most of water content from sludge by using heat energy, and moisture (generally, moisture or other volatile liquid components) in the material is vaporized and escaped by heating, so as to obtain solid material with specified moisture content.
The conventional common sludge drying equipment of the belt type drying machine is usually a whole, and the drying equipment needs to be specially customized to adapt to different drying requirements and the limitation of an equipment installation site. And a series of auxiliary equipment is commonly matched and sleeved on the device, so that the field assembly and installation are inconvenient.
Disclosure of Invention
The utility model provides a modularization low temperature belt drier.
The technical scheme of the utility model:
a modular low-temperature belt type dryer is formed by arranging and combining a plurality of dryer monomers; the drying machine monomer is internally provided with two cavities side by side, one cavity is a heat exchange cavity, the other cavity is a drying cavity, the upper part between the heat exchange cavity and the drying cavity is communicated through an air inlet, the lower part between the heat exchange cavity and the drying cavity is communicated through an air return inlet, an air inlet fan and a heat exchange module are arranged in the heat exchange cavity, and the heat exchange fan is positioned above the heat exchange module and is opposite to the air inlet; the drying chambers of all the drying machine monomers are communicated to form a drying chamber, and a conveying belt is arranged in the drying chamber; a fresh air inlet is formed in the dryer monomer; an air exhaust fan is also arranged in the heat exchange cavity and is connected with the air return port; the heat exchange module is formed by connecting a precooler, a condenser, a preheater and a heater sequentially through an air duct; and an air inlet pipe is also arranged in the heat exchange cavity and is connected with a fresh air inlet and an air channel connected with a condenser and a preheater through the air inlet pipe.
Pre-cooling: the air temperature of the air pumped out of the drying cavity is reduced to about 38 ℃ after precooling.
And (3) condensation process: the pre-cooled air passes through a condenser, and the temperature of the air is reduced to about 20 ℃ after condensation.
In the two processes, the high-temperature and high-humidity air passes through the precooler and the condenser, the air temperature is lower than the dew point temperature of the air, and at the moment, a large amount of moisture in the air is condensed; in the condensation process, volatile matters evaporated in the sludge drying process are condensed and dissolved in the condensation process to become solution containing ammonia and sulfur ions, and the solution has a very strong corrosion effect on the condenser, so the corrosion resistance of the material of the condenser is required to be very high. To extend the life of the condenser, we prefer 316L stainless steel.
Preheating: the condensed air is mixed with fresh air entering through the fresh air inlet. Then the air is preheated by a preheater, and the temperature of the preheated air is raised to about 50 ℃.
Heating process: the preheated air is heated by a heater, and the heated air reaches 80 ℃.
In a dryer monomer: the air in the drying cavity is conveyed to the heat exchange module through the air return port by the air exhaust fan, is processed by the heat exchange module, and is conveyed into the drying cavity through the air inlet fan to penetrate through the conveying belt from top to bottom, so that monomer circulating air, namely longitudinal circulating air, is formed.
A plurality of air deflectors are arranged in each drying cavity and fixedly connected to the single body of the drying machine; all the air deflectors in the same drying cavity are arranged in sequence opposite to the air inlet to form a spiral shape; the air in the drying chamber is forced to transversely and spirally move by the air deflector to form transverse circulating air.
The air inlet fans are two in number and are arranged side by side.
The number of the condensers is two.
The drying machine is provided with a waste gas outlet which is communicated with the drying chamber; the waste gas outlet is connected with a waste gas pipeline, and a waste gas fan is arranged on the waste gas pipeline; therefore, most of air in the drying chamber circulates in the drying chamber under the action of the air exhaust fan, and a small part of air is exhausted from the drying machine under the action of the waste gas fan, so that negative pressure is formed in the drying machine.
The utility model discloses the advantage is, reasonable in design, and simple structure adopts the heat transfer module design, embeds the auxiliary device of complicacy in the mummification machine monomer, like this, just can make up the mummification machine monomer wantonly and constitute the mummification machine that accords with the demand.
Drawings
Fig. 1 is a schematic diagram of a dryer.
FIG. 2 is a schematic diagram of the structure of a dryer monomer (1).
FIG. 3 is a schematic cross-sectional view of the BH-BH orientation of FIG. 2.
Fig. 4 is a schematic cross-sectional view along the BL-BL direction in fig. 2.
Fig. 5 is a schematic diagram of the structure of the dryer monomer (2).
FIG. 6 is a schematic view of the cross section taken along the direction of BJ-BJ in FIG. 2.
FIG. 7 is a schematic sectional view of the BG-BG of FIG. 5.
In the figure, a drier monomer 1, a heat exchange cavity 1-1, a drying cavity 1-2, an air inlet fan 1-5, a heat exchange module 1-6, an air exhaust fan 1-7, an air inlet duct 1-9, an air deflector 1-8, a waste gas pipeline 2 and a waste gas fan 3 are arranged.
Detailed Description
As shown in fig. 1-7, a modular low-temperature belt type dryer is composed of a plurality of dryer monomers 1 which are arranged and combined; the dryer monomer 1 is internally provided with two cavities side by side, one is a heat exchange cavity 1-1 and the other is a drying cavity 1-2, the upper parts of the heat exchange cavity 1-1 and the drying cavity 1-2 are communicated through an air inlet, the lower parts of the heat exchange cavity 1-1 and the drying cavity 1-2 are communicated through an air return inlet, an air inlet fan 1-5 and a heat exchange module 1-6 are arranged in the heat exchange cavity 1-1, and the heat exchange fan 1-5 is positioned above the heat exchange module 1-6 and is opposite to the air inlet; the drying chambers of all the drier monomers 1 are communicated to form a drying chamber, and a conveying belt is arranged in the drying chamber; a fresh air inlet is arranged on the dryer monomer 1; an air exhaust fan 1-7 is further arranged in the heat exchange cavity 1-1, and the air exhaust fan 1-7 is connected with an air return inlet; the heat exchange modules 1-6 are formed by connecting a precooler, a condenser, a preheater and a heater sequentially through an air duct; an air inlet pipe 1-9 is also arranged in the heat exchange cavity 1-1 and is connected with a fresh air inlet and an air channel connected with a condenser and a preheater through the air inlet pipe 1-9; in a dryer unit 1: air in the drying cavity 1-2 is sent to the heat exchange module 1-6 through the air return port by the air exhaust fan 1-7, is treated by the heat exchange module 1-6, and is sent to the drying cavity 1-2 through the air inlet by the air inlet fan 1-5 to pass through the conveying belt from top to bottom, so that monomer circulating air, namely longitudinal circulating air is formed; a plurality of air deflectors 1-8 are arranged in each drying cavity 1-2, and the air deflectors 1-8 are fixedly connected to the single drying machine 1; all the air deflectors 1-8 in the same drying cavity 1-2 are arranged opposite to the air inlet in sequence to form a spiral shape; the air in the drying chamber 1-2 is forced to transversely and spirally move by the air deflectors 1-8 to form transverse circulating air; the number of the air inlet fans is two, and the air inlet fans are arranged in parallel; the number of the condensers is two; the drying machine is provided with a waste gas outlet which is communicated with the drying chamber; the waste gas outlet is connected with a waste gas pipeline 2, and a waste gas fan 3 is arranged on the waste gas pipeline.
Because of the limited character expression, there exists an infinite concrete structure objectively, for those skilled in the art, without departing from the principle of the present invention, a plurality of improvements, decorations or changes can be made, and the above technical features can be combined in a proper way; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Claims (5)
1. A modular low-temperature belt type dryer is formed by arranging and combining a plurality of dryer monomers; the drying machine monomer is internally provided with two cavities side by side, one cavity is a heat exchange cavity, the other cavity is a drying cavity, the upper part between the heat exchange cavity and the drying cavity is communicated through an air inlet, the lower part between the heat exchange cavity and the drying cavity is communicated through an air return inlet, an air inlet fan and a heat exchange module are arranged in the heat exchange cavity, and the heat exchange fan is positioned above the heat exchange module and is opposite to the air inlet; the drying chambers of all the drying machine monomers are communicated to form a drying chamber, and a conveying belt is arranged in the drying chamber; a fresh air inlet is formed in the dryer monomer; the heat exchange device is characterized in that an air exhaust fan is further arranged in the heat exchange cavity and connected with a return air inlet; the heat exchange module is formed by connecting a precooler, a condenser, a preheater and a heater sequentially through an air duct; an air inlet pipe is also arranged in the heat exchange cavity and is connected with a fresh air inlet and an air channel connected with a condenser and a preheater through the air inlet pipe;
in a dryer monomer: the air in the drying cavity is conveyed to the heat exchange module through the air return port by the air exhaust fan, is processed by the heat exchange module, and is conveyed into the drying cavity through the air inlet fan to penetrate through the conveying belt from top to bottom, so that monomer circulating air, namely longitudinal circulating air, is formed.
2. The modular low-temperature belt drier according to claim 1, wherein each drying chamber is internally provided with a plurality of air deflectors which are fixedly connected to the drier monomer; all the air deflectors in the same drying cavity are arranged in sequence opposite to the air inlet to form a spiral shape; the air in the drying chamber is forced to transversely and spirally move by the air deflector to form transverse circulating air.
3. The modular low temperature belt dryer of claim 1, wherein the number of the inlet air blowers is two, and the inlet air blowers are arranged side by side.
4. The modular low temperature belt dryer of claim 1, wherein there are two condensers.
5. The modular low-temperature belt type drying machine as claimed in claim 1, wherein the drying machine is provided with an exhaust gas outlet, and the exhaust gas outlet is communicated with the drying chamber; the waste gas outlet is connected with a waste gas pipeline, and a waste gas fan is arranged on the waste gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700928.4U CN213803473U (en) | 2020-11-20 | 2020-11-20 | Modular low-temperature belt type drying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022700928.4U CN213803473U (en) | 2020-11-20 | 2020-11-20 | Modular low-temperature belt type drying machine |
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| Publication Number | Publication Date |
|---|---|
| CN213803473U true CN213803473U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022700928.4U Active CN213803473U (en) | 2020-11-20 | 2020-11-20 | Modular low-temperature belt type drying machine |
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| Country | Link |
|---|---|
| CN (1) | CN213803473U (en) |
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2020
- 2020-11-20 CN CN202022700928.4U patent/CN213803473U/en active Active
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