CN110657660A - Dry heat recovery equipment - Google Patents
Dry heat recovery equipment Download PDFInfo
- Publication number
- CN110657660A CN110657660A CN201911048560.3A CN201911048560A CN110657660A CN 110657660 A CN110657660 A CN 110657660A CN 201911048560 A CN201911048560 A CN 201911048560A CN 110657660 A CN110657660 A CN 110657660A
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- CN
- China
- Prior art keywords
- air
- pipe
- drying
- pipes
- air heater
- 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.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 28
- 235000013336 milk Nutrition 0.000 claims abstract description 21
- 239000008267 milk Substances 0.000 claims abstract description 21
- 210000004080 milk Anatomy 0.000 claims abstract description 21
- 235000008476 powdered milk Nutrition 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000009700 powder processing Methods 0.000 claims description 4
- 235000013305 food Nutrition 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 17
- 238000007602 hot air drying Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses drying heat energy recovery equipment, belongs to the technical field of hot air drying systems, and solves the technical problem that heat energy is not recycled in the milk powder drying process in the prior art. The apparatus comprises: an air heater to which hot steam is supplied to heat air for drying the powdered milk; and a plurality of mutually independent coil pipes are arranged in the air heater, one ends of the plurality of coil pipes are respectively provided with an inlet pipe communicated with a pipeline for conveying the hot steam, the other ends of the plurality of coil pipes are respectively provided with a discharge pipe, the discharge pipes are respectively provided with a drain valve, and the discharge pipes are discharged through a collecting pipe. The invention is used for perfecting the function of milk powder production in milk powder factories and meeting the requirements of personnel on energy conservation and energy recycling of modern manufacturing processes.
Description
Technical Field
The invention belongs to the technical field of hot air drying systems, and particularly relates to drying heat energy recovery equipment.
Background
The processing technology of the milk powder in the milk powder factory is to dry the milk powder by hot air, and a small amount of moisture is also in the milk powder, so that the hot air is needed for drying. In the milk powder processing technology of the milk powder factory in the prior art, hot steam is used once, so that energy waste is caused, and the process concept of energy conservation and reutilization in the prior art is not met.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The application provides a dry heat recovery plant, solves the technical problem that does not carry out recycle to heat energy among the milk powder stoving technology of prior art. The technical scheme of the scheme has a plurality of technical effects, which are shown below.
A drying heat energy recovery apparatus for heating air for drying in a milk powder factory, comprising:
an air heater to which hot steam is supplied to heat air for drying the powdered milk;
and a plurality of mutually independent coil pipes are arranged in the air heater, one ends of the plurality of coil pipes are respectively provided with an inlet pipe communicated with a pipeline for conveying the hot steam, the other ends of the plurality of coil pipes are respectively provided with a discharge pipe, the discharge pipes are respectively provided with a drain valve, and the discharge pipes are discharged through a collecting pipe.
Optionally, the inlet pipe of the coil pipe is communicated with the collecting pipe at an air inlet end adjacent to the air heater, and a control valve is installed; the exhaust pipes of the coil pipes are respectively provided with a bypass pipe close to the air inlet end of the air heater, the bypass pipes are mutually communicated with the collecting pipe, and a control valve is arranged; the condensed water in the collecting pipe flows through the coil pipe close to the air inlet end of the air heater, can heat the air and is discharged by the bypass pipe.
Optionally, the number of the coils in the air heater is at least 7, and the number of the coils adjacent to the air inlet end of the air heater is at least 1.
Optionally, the number of coils immediately adjacent the air inlet end of the air heater is 2.
A milk powder processing system comprises a control cabinet and partial or all drying heat energy recovery equipment electrically connected with the control cabinet.
A heating system for medicines, foods or chemical products comprises the above partial or all drying heat energy recovery equipment.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a drying heat recovery apparatus of the present invention.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
Referring to fig. 1, the drying heat energy recovery apparatus for heating air for drying in a milk powder factory includes:
the air heater 1 is used for conveying hot steam to the air heater to heat air for drying milk powder, the air heater can be a multi-section heater or a multi-section plate heater, the air enters from one section of the air heater 1, is heated and then is discharged from the other end of the air heater to dry the milk powder;
the air heater can be a multi-section plate type air heater in the prior art or a coil steam-gas heat exchanger or a coil air heater. A plurality of independent coil pipes 2 are arranged in an air heater 1, one ends of the coil pipes 2 are respectively provided with an inlet pipe communicated with a pipeline 3 for conveying hot steam, the other ends of the coil pipes are respectively provided with a discharge pipe, a drain valve 4 is arranged on each discharge pipe, and the discharge pipes are discharged through a collecting pipe 5. The trap is a valve, also called the steam trap, is the valve with the condensate water exhaust in the steam system, and it can the gaseous discharge of separation, in the present case, lets the steam heat energy in the coil all by the utilization back, is discharged after becoming the condensate water, has utilized the heat energy of steam greatly, avoids the loss of heat energy, provides heat exchange's efficiency.
Furthermore, an inlet pipe of the coil pipe at the air inlet end close to the air heater is communicated with the collecting pipe 5, and a control valve is arranged, so that the heat energy of the condensed water discharged through the collecting pipe 5 can be reused to heat the air for drying the milk powder. It should be noted that the temperature of each coil pipe on the air heater is different, the more the temperature of the coil pipe close to the air inlet is relatively lower, the more easily the condensate water is formed, the higher the temperature of the coil pipe far away from the air inlet is, the smaller the temperature difference between the adjacent coil pipes is, the less easily the condensate water is formed;
the exhaust pipes of the coil pipes close to the air inlet end of the air heater are respectively provided with a bypass pipe 6, the bypass pipes 6 are mutually communicated with the collecting pipe 5, and a control valve is arranged; the condensed water in the collecting pipe 5 flows through the coil pipe at the air inlet end adjacent to the air heater, can heat the air, and is discharged by a bypass pipe 6.
Optionally, the number of coils in the air heater is at least 3, preferably 7-13, and the number of coils in the air heater adjacent to the air inlet end of the air heater is at least 1, preferably 2-3. As shown in fig. 1, 7 coils are arranged in the air heater, bypass pipes 6 are respectively arranged on the discharge pipes at the positions of the coil 1 and the coil 2, and the bypass pipes 6 are communicated with a collecting pipe 5; the collecting pipe 5 is communicated with the steam inlet pipelines of the No. 1 coil pipe and the No. 2 coil pipe and is provided with a control valve. During the use, close the control flap on the pipeline that No. 1 coil pipe and No. 2 coil pipe got into steam earlier, make the hot condensate water of pressure manifold 5 get into No. 1 coil pipe and No. 2 coil pipe and heat the air, it is at least 90 to point out the temperature of the interior condensate water of pressure manifold 5 to the hot air volume that the stoving milk powder used is practiced thrift, the energy saving.
The structure is the structure setting of the general air heater in market, and the structure of the air heater is not improved by the scheme, and only the pipeline is changed to heat air by circularly utilizing hot steam.
Further, the quantity that the air that is close to air heater gets into end coil pipe is 2, and the admission pipe and the 5 intercommunications of pressure manifold at this 2 coil pipes, during the use, close the original control valve on the coil pipe earlier for the condensation water carries out this 2 coil pipes in the pressure manifold, and what need point out is: the temperature of the condensed water is generally larger than 90 degrees, and after the condensed water is reused, the condensed water is discharged through the set bypass pipe 6 by collecting flow, so that the secondary recycling of heat energy is realized.
A milk powder processing system comprises a control cabinet and partial or whole drying heat energy recovery equipment electrically connected with the control cabinet, wherein a temperature display and an electric control valve are mainly arranged on a pipeline, the temperature display transmits signals to the control cabinet, and for specific working requirements, remote control is realized through the electric control valve, so that the intelligent requirement of modern industry is met.
The technical characteristics of the scheme are also applicable to systems of all hot air drying equipment, such as medicine drying in the pharmaceutical industry, drying in the food industry or drying in the chemical industry, especially to drying process systems of milk powder in milk powder factories.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (6)
1. A drying heat recovery apparatus for use in a system for drying using hot air, comprising:
an air heater to which hot steam is supplied to heat air for drying the powdered milk; and a process for the preparation of a coating,
the air heater is internally provided with a plurality of mutually independent coil pipes, one ends of the plurality of coil pipes are respectively provided with an inlet pipe communicated with a pipeline for conveying the hot steam, the other ends of the plurality of coil pipes are respectively provided with a discharge pipe, the discharge pipes are respectively provided with a drain valve, and the discharge pipes are discharged through a collecting pipe.
2. The drying thermal energy recovery apparatus according to claim 1,
the inlet pipe of the coil pipe is communicated with the collecting pipe at the air inlet end close to the air heater, and a control valve is arranged on the inlet pipe;
the exhaust pipes of the coil pipes are respectively provided with a bypass pipe close to the air inlet end of the air heater, the bypass pipes are mutually communicated with the collecting pipe, and a control valve is arranged;
the condensed water in the collecting pipe flows through the coil pipe close to the air inlet end of the air heater, can heat the air and is discharged by the bypass pipe.
3. The drying thermal energy recovery apparatus of claim 2 wherein the number of coils in the air heater is at least 3 and the number of coils proximate the air inlet end of the air heater is at least 1.
4. The drying heat energy recovery apparatus of claim 3 wherein the number of coils immediately adjacent the air inlet end of the air heater is 2.
5. A milk powder processing system, characterized in that it comprises a control cabinet and a drying heat energy recovery device according to any one of claims 1 to 4 electrically connected with the control cabinet.
6. A heating system for a pharmaceutical or food or chemical product, comprising a drying heat recovery device according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048560.3A CN110657660A (en) | 2019-10-31 | 2019-10-31 | Dry heat recovery equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911048560.3A CN110657660A (en) | 2019-10-31 | 2019-10-31 | Dry heat recovery equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110657660A true CN110657660A (en) | 2020-01-07 |
Family
ID=69042382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911048560.3A Pending CN110657660A (en) | 2019-10-31 | 2019-10-31 | Dry heat recovery equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110657660A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3428335A1 (en) * | 1984-08-01 | 1986-02-13 | Via GmbH, 4000 Düsseldorf | DEVICE FOR COLD DRYING GAS PRESSURIZED, IN PARTICULAR COMPRESSED AIR |
| CN102494546A (en) * | 2011-12-16 | 2012-06-13 | 亿恒节能科技江苏有限公司 | Air heating coil unit condensed water afterheat utilization system for primary-effect flash evaporation |
| CN102506564A (en) * | 2011-12-28 | 2012-06-20 | 亿恒节能科技江苏有限公司 | Condensation water residual heat first-effect flash evaporation natural air dehumidifying, preheating and drying baking oven system |
| CN205300218U (en) * | 2015-12-28 | 2016-06-08 | 焦作市源海精细化工有限公司 | Pneumatic drying afterheat recycling device |
| CN211233839U (en) * | 2019-10-31 | 2020-08-11 | 西安唐泰节能环保科技有限公司 | Dry heat recovery equipment and system |
-
2019
- 2019-10-31 CN CN201911048560.3A patent/CN110657660A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3428335A1 (en) * | 1984-08-01 | 1986-02-13 | Via GmbH, 4000 Düsseldorf | DEVICE FOR COLD DRYING GAS PRESSURIZED, IN PARTICULAR COMPRESSED AIR |
| CN102494546A (en) * | 2011-12-16 | 2012-06-13 | 亿恒节能科技江苏有限公司 | Air heating coil unit condensed water afterheat utilization system for primary-effect flash evaporation |
| CN102506564A (en) * | 2011-12-28 | 2012-06-20 | 亿恒节能科技江苏有限公司 | Condensation water residual heat first-effect flash evaporation natural air dehumidifying, preheating and drying baking oven system |
| CN205300218U (en) * | 2015-12-28 | 2016-06-08 | 焦作市源海精细化工有限公司 | Pneumatic drying afterheat recycling device |
| CN211233839U (en) * | 2019-10-31 | 2020-08-11 | 西安唐泰节能环保科技有限公司 | Dry heat recovery equipment and system |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Qiang Inventor before: Li Qiang Inventor before: Qiu Yalong Inventor before: Wang Tao |
|
| CB03 | Change of inventor or designer information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200107 |
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| WD01 | Invention patent application deemed withdrawn after publication |