CN219433732U - Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles - Google Patents
Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles Download PDFInfo
- Publication number
- CN219433732U CN219433732U CN202320277706.7U CN202320277706U CN219433732U CN 219433732 U CN219433732 U CN 219433732U CN 202320277706 U CN202320277706 U CN 202320277706U CN 219433732 U CN219433732 U CN 219433732U
- Authority
- CN
- China
- Prior art keywords
- cavity
- heat exchange
- heat exchanger
- indirect
- hot air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to an indirect hot blast stove for spray drying of traditional Chinese medicine formula particles, which comprises a combustor, wherein a combustion port of the combustor is sequentially connected with a heat exchange box, an exhaust gas heat exchange channel and a heat medium channel of a dividing wall type heat exchanger through pipelines, an inner cavity of a box body is divided into a first cavity and a second cavity through a partition plate, the heat exchange box and the exhaust gas heat exchange channel are respectively arranged in the first cavity and the second cavity, through holes for communicating the first cavity with the second cavity are formed in the partition plate, a low-temperature hot air outlet for communicating the first cavity and a low-temperature hot air inlet for communicating the second cavity are formed in the box body, and the low-temperature hot air inlet is sequentially connected with a cold medium channel of the dividing wall type heat exchanger and an air outlet of an air source device through pipelines; the indirect hot blast stove has high heat conversion efficiency, compact structure and capacity of outputting clean and sterile hot air.
Description
Technical Field
The utility model relates to the technical field of hot-blast stoves, in particular to an indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles.
Background
Spray drying of the traditional Chinese medicine formula particles requires hot air input, and hot air is generally generated by adopting a hot air furnace; the hot blast stove is divided into a direct hot blast stove and an indirect hot blast stove in a conveying mode, wherein the direct hot blast stove adopts fuel to directly burn, forms hot blast through purification treatment, and is directly contacted with materials to heat and dry or bake.
The spray drying of the traditional Chinese medicine formula particles has higher requirements on the purity of hot air, so that an indirect hot air furnace is adopted, and the air is heated through various heat exchangers, so that the purity of the dried materials is effectively ensured.
The indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles in the prior art has the following defects: the exhaust gas discharged from the hot blast stove has higher temperature and low heat conversion efficiency; the structure is complex and the volume is huge.
Disclosure of Invention
The utility model aims to solve the technical problems that the indirect hot air furnace for spray drying of traditional Chinese medicine formula particles has high heat conversion efficiency and compact structure and can output clean and sterile hot air.
In order to solve the technical problems, the indirect hot air furnace for spray drying of traditional Chinese medicine formula particles comprises a combustor, wherein a combustion port of the combustor is sequentially connected with a heat exchange box, an exhaust gas heat exchange channel and a heat medium channel of a dividing wall type heat exchanger through pipelines, an inner cavity of a box body is divided into a first cavity and a second cavity through a partition plate, the heat exchange box and the exhaust gas heat exchange channel are respectively arranged in the first cavity and the second cavity, through holes for communicating the first cavity with the second cavity are formed in the partition plate, a low-temperature hot air outlet for communicating the first cavity and a low-temperature hot air inlet for communicating the second cavity are formed in the box body, and the low-temperature hot air inlet is sequentially connected with a cold medium channel of the dividing wall type heat exchanger and an air outlet of an air source device through pipelines.
Further, the burner is a low-nitrogen burner, and a natural gas inlet and a combustion-supporting gas inlet are arranged on the burner; the emission of nitrogen-oxygen compounds of the low-nitrogen burner is low, so that the low-nitrogen burner is more environment-friendly; the low-nitrogen burner adopts natural gas as fuel, so that a great deal of energy consumption and cost can be saved.
Further, the waste gas heat exchange channel comprises a plurality of corrugated plates which are sequentially overlapped, through holes are formed in the corrugated plates, and the through holes in each corrugated plate are sequentially communicated; the waste gas flows through the waste gas heat exchange channel, so that the heat exchange effect is good.
Further, a smoke exhaust fan is connected in series on a pipeline between the waste gas heat exchange channel and the dividing wall type heat exchanger; the smoke exhaust fan enables a micro negative pressure to be formed in a pipeline at one side of the air inlet, and the flow of waste gas is facilitated.
Further, the dividing wall type heat exchanger is a plate type heat exchanger; the plate heat exchanger has good heat exchange effect.
Further, a filter is connected in series on a pipeline between the air source device and the dividing wall type heat exchanger; the air outlet of the air source device outputs cold air medium, and the filter filters impurities in the cold air medium.
The utility model has the beneficial effects that: when the burner works, the combustion port of the burner generates high-temperature waste gas, and the high-temperature waste gas sequentially passes through the heat exchange box, the waste gas heat exchange channel and the heat medium channel of the dividing wall type heat exchanger, and the tail end of the heat medium channel discharges low-temperature waste gas; the air outlet of the air source device outputs cold air medium, the cold air medium firstly flows through a cold medium channel of the dividing wall type heat exchanger to perform primary heat exchange and preheating, then enters into the second cavity from the low-temperature hot air inlet to perform secondary heat exchange with the waste gas heat exchange channel, finally enters into the first cavity from the through hole on the partition plate to perform tertiary heat exchange with the heat exchange box, and finally the formed hot air medium is discharged from the high-temperature hot air outlet; the high-temperature waste gas generated by the burner is subjected to three heat exchanges and finally converted into low-temperature waste gas to be discharged, and the indirect hot blast stove utilizes waste heat of the waste gas to the greatest extent, so that the heat exchange efficiency is high; the cold air medium is not contacted with the waste gas in the heat exchange process, so that the cold air medium is not polluted by the waste gas; the cold air medium undergoes three heat exchanges and is subjected to full sterilization under a high-temperature environment, and finally a sterile hot air medium is formed; the indirect hot blast stove for spray drying of the traditional Chinese medicine formula particles has high heat conversion efficiency and compact structure, and can output clean and sterile hot air.
Drawings
In order to clearly illustrate the innovative principles of the utility model and its advantages compared with the prior art indirect stoves, possible embodiments are described below by way of non-limiting examples applying said principles with the aid of the accompanying drawings. In the figure:
fig. 1 is a schematic diagram of an indirect hot-air furnace for spray drying of traditional Chinese medicine formula particles.
Description of the embodiments
The technical solutions of the present novel embodiment will be clearly and completely described below with reference to the drawings in the present novel embodiment, and it is apparent that the described embodiments are only some embodiments of the present novel embodiment, not all embodiments.
All other embodiments, based on the embodiments in this disclosure, which would be within the purview of one of ordinary skill in the art without the creative effort, are contemplated as falling within the scope of the present disclosure.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the present embodiment are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless explicitly specified and limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be either fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model will be understood by those skilled in the art according to the specific circumstances.
Examples
As shown in fig. 1, the indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles in this embodiment comprises a combustor 7, wherein a combustion port of the combustor 7 is sequentially connected with a heat exchange box 5, an exhaust gas heat exchange channel 6 and a heat medium channel 10 of a dividing wall type heat exchanger 9 through pipelines, an inner cavity of a box body 1 is divided into a first cavity 3 and a second cavity 4 through a partition plate 2, the heat exchange box 5 and the exhaust gas heat exchange channel 6 are respectively arranged in the first cavity 3 and the second cavity 4, through holes which are communicated with the first cavity 3 and the second cavity 4 are formed in the partition plate 2, a low-temperature hot air outlet 11 which is communicated with the first cavity 3 and a low-temperature hot air inlet 12 which is communicated with the second cavity 4 are formed in the box body 1, and the low-temperature hot air inlet 12 is sequentially connected with a cold medium channel 13 of the dividing wall type heat exchanger 9 and an air source device 14 through pipelines.
The air outlet of the air source device 14 outputs cold air medium, when the cold air medium is air, the air source device 14 selects a blower, and when the cold air medium is nitrogen, the air source device 14 selects a nitrogen tank.
Preferably, the burner 7 is a low nitrogen burner, and a natural gas inlet 16 and a combustion-supporting gas inlet 17 are arranged on the burner; the emission of nitrogen-oxygen compounds of the low-nitrogen burner is low, so that the low-nitrogen burner is more environment-friendly; the low-nitrogen burner adopts natural gas as fuel, so that a great deal of energy consumption and cost can be saved.
The following is a table comparing the energy consumption costs of a dryer using the low nitrogen burner of this example with a conventional dryer using a steam powered offset heat source:
preferably, the exhaust gas heat exchange channel 6 includes a plurality of sequentially stacked corrugated plates 15, through holes are formed in the corrugated plates 15, and the through holes in each corrugated plate 15 are sequentially communicated; the waste gas flows through the waste gas heat exchange channel 6, so that the heat exchange effect is good; the waste gas heat exchange channel 6 can also be a heat exchange tube group formed by a coiled tube or a plurality of heat exchange tubes which are arranged at intervals.
A smoke exhaust fan 8 is connected in series on a pipeline between the waste gas heat exchange channel 6 and the dividing wall type heat exchanger 9; the smoke exhaust fan 8 enables a micro negative pressure to be formed in a pipeline at one side of the air inlet, and is more beneficial to the flow of waste gas.
Preferably, the dividing wall type heat exchanger 9 is a plate type heat exchanger; the dividing wall type heat exchanger 9 can also be a shell-and-tube type heat exchanger, a coil type heat exchanger, a jacket type heat exchanger or a double tube type heat exchanger.
A filter is connected in series on a pipeline between the air source device 14 and the dividing wall type heat exchanger 9; the air outlet of the air source device 14 outputs cold air medium, and the filter filters impurities in the cold air medium.
During operation, the combustion port of the combustor 7 generates high-temperature waste gas, and the high-temperature waste gas sequentially passes through the heat exchange box 5, the waste gas heat exchange channel 6 and the heat medium channel 10 of the dividing wall type heat exchanger 9, and the tail end of the heat medium channel 10 discharges low-temperature waste gas; the air outlet of the air source device 14 outputs cold air medium, the cold air medium firstly flows through the cold medium channel 13 of the partition type heat exchanger 9 to perform primary heat exchange and preheating, then enters the second chamber 4 from the low-temperature hot air inlet 12 to perform secondary heat exchange with the waste gas heat exchange channel 6, finally enters the first chamber 3 from the through hole on the partition plate 2 to perform tertiary heat exchange with the heat exchange box 5, finally the formed hot air medium is discharged from the high-temperature hot air outlet 11, and only enters the drying chamber of the traditional Chinese medicine formula granule spray drying unit after being filtered. The high-temperature waste gas generated by the burner 7 is subjected to three heat exchanges and finally converted into low-temperature waste gas to be discharged, and the indirect hot blast stove utilizes waste heat of the waste gas to the greatest extent, so that the heat exchange efficiency is high; the cold air medium is not contacted with the waste gas in the heat exchange process, so that the cold air medium is not polluted by the waste gas; the cold air medium undergoes three heat exchanges and is subjected to full sterilization under a high-temperature environment, and finally, a sterile hot air medium is formed. The indirect hot blast stove for spray drying of the traditional Chinese medicine formula particles has high heat conversion efficiency and compact structure, and can output clean and sterile hot air.
The practice proves that the hot air output by the hot air furnace adopting the structure has high purity, and can meet the requirement of spray drying of traditional Chinese medicine formula particles.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (6)
1. Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles comprises a combustor (7), and is characterized in that: the utility model discloses a low temperature hot air combustor, including combustor (7), heat exchange box (3), second cavity (4), baffle (2), heat exchange box (5), exhaust gas heat exchange channel (6), and heat medium passageway (10) of dividing wall formula heat exchanger (9) are connected in proper order through the pipeline, the inner chamber of a box (1) separates into first cavity (3) and second cavity (4), heat exchange box (5) and exhaust gas heat exchange channel (6) set up respectively in first cavity (3) and second cavity (4), the through-hole of intercommunication first cavity (3) and second cavity (4) has been seted up on baffle (2), set up on box (1) low temperature hot air outlet (11) and intercommunication second cavity (4) of intercommunication first cavity (11), low temperature hot air inlet (12) are connected with cold medium passageway (13) and air supply device (14) of dividing wall formula heat exchanger (9) in proper order through the pipeline.
2. An indirect stove according to claim 1, wherein: the burner (7) is a low-nitrogen burner, and the burner (7) is provided with a natural gas inlet (16) and a combustion-supporting gas inlet (17).
3. An indirect stove according to claim 1, wherein: the waste gas heat exchange channel (6) comprises a plurality of corrugated plates (15) which are sequentially overlapped, through holes are formed in the corrugated plates (15), and the through holes in the corrugated plates (15) are sequentially communicated.
4. An indirect stove according to claim 1, wherein: a smoke exhaust fan (8) is connected in series on a pipeline between the waste gas heat exchange channel (6) and the dividing wall type heat exchanger (9).
5. An indirect stove according to claim 1, wherein: the dividing wall type heat exchanger (9) is a plate type heat exchanger.
6. An indirect stove according to claim 1, wherein: a filter is connected in series on a pipeline between the air source device (14) and the dividing wall type heat exchanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320277706.7U CN219433732U (en) | 2023-02-21 | 2023-02-21 | Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320277706.7U CN219433732U (en) | 2023-02-21 | 2023-02-21 | Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433732U true CN219433732U (en) | 2023-07-28 |
Family
ID=87342191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320277706.7U Active CN219433732U (en) | 2023-02-21 | 2023-02-21 | Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219433732U (en) |
-
2023
- 2023-02-21 CN CN202320277706.7U patent/CN219433732U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219433732U (en) | Indirect hot-blast stove for spray drying of traditional Chinese medicine formula particles | |
| CN201028951Y (en) | Material drying machine set | |
| CN105865023B (en) | A kind of environment-friendly and energy-efficient hot-blast stove | |
| CN205664564U (en) | Coal hot -blast furnace | |
| CN214665245U (en) | Gas heating water heater | |
| CN212005686U (en) | Pre-heat exchange part of boiler burner | |
| CN106885366A (en) | A kind of novel high-efficiency and energy-saving type burner | |
| CN218583150U (en) | Low-nitrogen gas boiler | |
| CN216159339U (en) | Heating system based on organic heat carrier boiler | |
| CN113587679B (en) | Efficient heat exchange device | |
| CN220892314U (en) | Heat exchanger stove | |
| CN217274828U (en) | Fuel gas pure wind hot blast stove | |
| CN209820209U (en) | Efficient instant heating type low-nitrogen condensation module unit | |
| CN220229121U (en) | Multi-fuel vertical hot water boiler | |
| CN220648245U (en) | Integrated heat exchange tube combustion device | |
| CN220750395U (en) | Hot-blast stove system for preheating air by utilizing flue gas waste heat | |
| CN220817739U (en) | Cylindrical water-cooled burner | |
| CN219494399U (en) | Fuel oil type hot air energy supply device | |
| CN214791228U (en) | Energy-saving device of combustion system | |
| CN113294803B (en) | Biomass combustion furnace with air heat exchange interlayer | |
| CN2175373Y (en) | High efficiency and energy saving hot wind stove | |
| CN220582478U (en) | Energy-saving double-drum longitudinal boiler | |
| CN211302382U (en) | Boiler smoke and dust preprocessing device | |
| CN211036022U (en) | Radiation cone flue gas waste heat recycling efficient heat treatment furnace | |
| CN1316222C (en) | Hot-air furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |