CN107189889B - Washing powder spray drying tower tail gas waste heat recovery utilizes device - Google Patents
Washing powder spray drying tower tail gas waste heat recovery utilizes device Download PDFInfo
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- CN107189889B CN107189889B CN201710554506.0A CN201710554506A CN107189889B CN 107189889 B CN107189889 B CN 107189889B CN 201710554506 A CN201710554506 A CN 201710554506A CN 107189889 B CN107189889 B CN 107189889B
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- tail gas
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions
- C11D11/02—Preparation in the form of powder by spray drying
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- 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
Abstract
The invention discloses a washing powder spray drying tower tail gas waste heat recycling device which comprises a heat exchanger, a storage tank and a heating tank, wherein the heating tank is arranged in the heat exchanger, the storage tank, the heating tank and the storage tank are sequentially connected in series, the storage tank is connected with the heating tank through a first pipeline, a discharging pump is arranged on the first pipeline, the heating tank is connected with the storage tank through a second pipeline, a conveying pump is arranged on the second pipeline, steam coils are respectively arranged in the storage tank, the heating tank and the storage tank, the inlet ends of the steam coils are connected with an external steam source through steam pipes, the outlet ends of the steam coils are used for collecting condensate through a condensation reflux pipe, a tail gas inlet and a tail gas outlet which are communicated with tail gas are arranged in the heat exchanger, the tail gas inlet is communicated with the tail gas, the heating tank is heated, and the tail gas after heat exchange is discharged from the tail gas outlet. The device of the invention can achieve the purposes of energy saving and consumption reduction, and has obvious economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of washing powder production, in particular to a washing powder spray drying tower tail gas waste heat recycling device.
Background
At present, the development status and characteristics of detergent industry in China are mainly that liquid detergent enters into a rapid growth period, the total amount of the liquid detergent has leap forward in the first time in washing products, and in order to adapt to the green and environment-friendly development trend of daily chemical products, the production of washing powder products is developing towards the aspect of energy conservation and environment protection in the production process. The nonionic surfactant is mainly used as emulsifier for emulsion, cream and shampoo cosmetics. Has excellent water solubility, and can be used for preparing oil-in-water emulsion. In addition, the emulsifier can also be used as an antistatic agent, is a hydrophilic emulsifier, can enhance the solubility of certain substances in water, and can be used as an emulsifier for preparing O/W type emulsion. Because of its good emulsifying, decontaminating, cleaning performances, etc., it is widely used to prepare civil detergents, industrial emulsifiers and metal cleaning agents. The nonionic surfactant is added into the raw material of the washing powder, so that the washing powder has strong dirt-removing power, can penetrate into the fiber of clothes to play a washing role, and has more thorough dirt removal. The drying and forming of the product still mainly adopts spray drying and forming, so that the adoption of spray drying is an essential link in the production process of the washing powder. The dried tail gas is discharged outside after being dedusted by a cyclone dust collector (or a bag-type dust collector) from the top of the tower, and the main component of the discharged tail gas is N 2 、O 2 、CO 2 And water vapor, and also contains trace amount of soot/dust and SO 2 And pollutants such as NOx. Through detection, the standard dry flow of the tail gas after dust removal by the cyclone dust collector (or the bag-type dust collector) is about 78000 standard cubic volume per hour, and the average temperature of the tail gas reaches about 85 ℃, which indicates that a large amount of heat in the tail gas can be utilized. In the prior production process of washing powder, the waste heat in the tail gas is not recycled and is directly discharged along with the tail gas, which not only causes waste, but also causes certain pollution to the environment. If the heat in the tail gas can be recycled and used for heating the nonionic surfactant, the whole process does not need to consume steam for additional heating, so that the energy consumption of the production of the washing powder can be reduced, and the purposes of saving energy, reducing consumption and reducing production cost are achieved.
In the compendium of light industry joy, the plan of thirteen five in light industry and the national relevant industrial policy of environmental protection, which are already issued by the state academy of affairs, the green upgrade of the industry is definitely required to be realized in the industry of washing products, and the resource saving is the fundamental policy for protecting the ecological environment. Advocate to save resources greatly, promote the production, circulation, consumption process to reduce, recycle, resourceful. The development of energy-saving and environment-friendly technology is encouraged, which further promotes the green, low-carbon and sustainable development of the washing product industry.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a washing powder spray drying tower tail gas waste heat recycling device, which heats a nonionic surfactant in a heat exchanger by using the tail gas waste heat of a spray drying tower, so that the working energy consumption can be greatly reduced, the production cost of an enterprise can be reduced, and the effects of energy conservation, consumption reduction and environmental protection can be achieved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a washing powder spray drying tower tail gas waste heat recovery utilizes device, the device is including heat exchanger, holding vessel, hold up tank and heating jar, the heating jar sets up in the heat exchanger, the order is established ties between holding vessel, heating jar and the hold up tank, links to each other through pipeline one between holding vessel and the heating jar, is equipped with the unloading pump on pipeline one, links to each other through pipeline two between heating jar and the hold up tank, is equipped with the delivery pump on pipeline two be equipped with the steam coil pipe in holding vessel, heating jar and the hold up tank respectively, the entrance point of steam coil pipe passes through the steam pipe and links to each other with outside steam source, and its exit end passes through the condensation back flow and collects the lime set be equipped with in the heat exchanger with communicating tail gas import and tail gas export, communicate with each other with tail gas through the tail gas import, realize heating the heating jar in the heat exchanger, tail gas after the heat transfer is discharged by the tail gas export.
Further, the washing powder spray drying tower tail gas waste heat recovery and utilization device further comprises a control system, and the unloading pump and the delivery pump are respectively and electrically connected with the control system.
Further, the washing powder spray drying tower tail gas waste heat recycling device is characterized in that a pressure measuring instrument is further arranged on the steam pipe, and the pressure measuring instrument is electrically connected with the control system.
Further, the washing powder spray drying tower tail gas waste heat recovery and utilization device further comprises a raw material conveying system, wherein the raw material conveying system is a tank car, the tank car is respectively communicated with the input ends of the storage tank and the heating tank through a first pipeline, two unloading pumps are arranged in the first pipeline, and the two unloading pumps are used and provided.
Further, the washing powder spray drying tower tail gas waste heat recovery utilizes device, wherein the heating jar is equipped with a plurality ofly, sets up in the heat exchanger with parallelly connected or series connection mode between a plurality of heating jars, and the output of heating jar is linked together through pipeline two and holding vessel to be equipped with two delivery pumps on pipeline two, two delivery pumps are one for one and are equipped with.
Furthermore, the washing powder spray drying tower tail gas waste heat recovery utilizes device, the heating jar is equipped with a plurality ofly, sets up in the heat exchanger with the series connection mode between the adjacent heating jar, wherein the input of first heating jar is linked together with the holding vessel through pipeline one, the input and the output of the other heating jar are through pipeline with series connection mode interconnect, the output of last heating jar is linked together with the holding vessel through pipeline two.
Further, a washing powder spray drying tower tail gas waste heat recovery utilizes device, the heating jar is equipped with threely, sets up in the heat exchanger with the series connection mode between the adjacent heating jar, wherein the input of first heating jar is linked together with the storage tank through pipeline one, the input of second heating jar passes through the pipe connection with the output of first heating jar, its output passes through the pipe connection with the input of third heating jar, the output of third heating jar passes through pipeline two and communicates with the holding vessel.
Compared with the prior art, the washing powder spray drying tower tail gas waste heat recycling device has the effective effects that: the AEO-9 nonionic surfactant is heated by utilizing the waste heat of the tail gas of the spray drying tower, so that the heating efficiency is high, the heat preservation performance is good, the normal production can be smoothly maintained, the steam is not required to be consumed in the whole process for extra heating, and the consumption of natural gas is reduced. In the actual operation process, the factory can save about 48 ten thousand yuan per year according to the work day accounting of 300 days per year, steam is saved by 1000 tons, packing materials are saved by 230 tons, the problems of energy saving, consumption reduction and environmental pollution are solved, the working strength of workers can be reduced, the safety coefficient of the operation of the workers is improved, and the economic benefit and the social benefit are remarkable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a graph of the variation of the temperature of AEO-9 in the heating tank at different time intervals in the present invention.
Shown in the figure: 1-heat exchanger, 2-storage tank, 3-tank wagon, 4-unloading pump, 5-control system, 6-storage tank, 7-delivery pump, 8-pressure measuring instrument, 9-heating tank and 10-steam disk.
Detailed Description
To further illustrate the inventive concepts of the present invention, specific embodiments of the present invention will be described further below with reference to the accompanying drawings in which:
as shown in fig. 1, tail gas generated by a spray drying tower in a washing powder production workshop is dedusted by a cyclone dust collector (or a bag-type dust collector), and is conveyed into a heat exchanger 1 through a pipeline, a heating tank 9 arranged in the heat exchanger 1 is heated by tail gas waste heat, an AEO-9 nonionic surfactant is stored in the heating tank 9, the heated AEO-9 nonionic surfactant is conveyed into a storage tank 6 through a conveying pump 7, the AEO-9 nonionic surfactant stored in the heating tank 9 is conveyed into the heating tank 9 from a storage tank 2 or a tank car 3 through a discharging pump 4, heating coils 10 communicated with a steam source are respectively arranged in the storage tank 2, the heating tank 9 and the storage tank 6, and the AEO-9 nonionic surfactant stored in the storage tank 2, the heating tank 9 and the storage tank 6 is preheated through the heating coils 10 under the action of steam. The aim of preheating the AEO-9 nonionic surfactant is to quickly dissolve the AEO-9 for later use during driving by mainly considering that the low temperature during driving influences the operation of equipment, and prevent the AEO-9 from solidifying and blocking pipelines to influence the normal production of a workshop.
The device comprises a heat exchanger 1, a storage tank 2, a storage tank 6, a heating tank 9 and a control system 5, wherein the heating tank 9 is arranged in the heat exchanger 1, the storage tank 2, the heating tank 9 and the storage tank 6 are sequentially connected in series, the storage tank 2 is connected with the heating tank 9 through a first pipeline, a discharge pump 4 is arranged on the first pipeline, the heating tank 9 is connected with the storage tank 6 through a second pipeline, a delivery pump 7 is arranged on the second pipeline, steam coils 10 are respectively arranged in the storage tank 2, the heating tank 9 and the storage tank 6, the inlet ends of the steam coils 10 are connected with an external steam source through steam pipes, meanwhile, a pressure measuring instrument 8 is also arranged on the steam pipes, the outlet ends of the pressure measuring instrument collect condensate through a condensation return pipe, a tail gas inlet and a tail gas outlet which are communicated with tail gas are arranged in the heat exchanger 1 and are communicated with the tail gas through the tail gas inlet, heating of the heating tank 9 in the heat exchanger 1 is realized, and the tail gas after heat exchange is discharged through the tail gas outlet. Wherein the unloading pump 4, the delivery pump 7 and the pressure measuring instrument 8 are respectively electrically connected with the control system 5.
In the actual use process, because the average consumption of AEO-9 is about 20 tons per month, the heat exchange effect of the AEO-9 and tail gas is considered, the heating tanks 9 are arranged into a plurality of small tanks with the volume of 8-10 m & lt 3 & gt, the plurality of heating tanks 9 are arranged in the heat exchanger 1 in a parallel or serial mode, the output ends of the heating tanks 9 are communicated with the storage tank 6 through a second pipeline, two conveying pumps 7 are arranged on the second pipeline, the two conveying pumps 7 are used for one purpose, and the purpose of adopting the two conveying pumps 7 is to prevent the other conveying pump 7 from being used when an abnormal condition occurs in the use process. Meanwhile, in consideration of the heat utilization condition, adjacent heating tanks 9 are arranged in the heat exchanger 1 in a series connection mode, wherein the input end of the first heating tank 9 is communicated with the storage tank 2 through a first pipeline, the input ends and the output ends of the rest heating tanks 9 are connected with each other in a series connection mode through pipelines, and the output end of the last heating tank 9 is communicated with the storage tank 6 through a second pipeline. In addition, considering the occupation area and the consumption of the washing powder workshop, in the practical use process, the number of the heating tanks 9 is three, the adjacent heating tanks 9 are arranged in the heat exchanger 1 in a series connection mode, wherein the input end of the first heating tank 9 is communicated with the storage tank 2 through a pipeline I, the input end of the second heating tank 9 is connected with the output end of the first heating tank 9 through a pipeline, the output end of the second heating tank 9 is connected with the input end of the third heating tank 9 through a pipeline, and the output end of the third heating tank 9 is communicated with the storage tank 6 through a pipeline II. By adopting the structure, the heat exchange area can be increased, and the heat exchange efficiency is improved.
Further, the device still includes raw materials conveying system, raw materials conveying system is tank wagon 3, tank wagon 3 is linked together with storage tank 2 and the input of heating jar 9 respectively through pipeline one to be equipped with two pumps 4 of unloading in pipeline one, two pumps 4 of unloading are one and are equipped with one, adopt two pumps 4 of unloading in order to prevent in the use, when the abnormal conditions appear, another pump 4 of unloading can also use. Because the traditional heating mode of the AEO-9 nonionic surfactant adopts a drying room for heating, the operation mode is as follows: manually transporting the barreled AEO-9 (180 Kg/barrel) from a storehouse to the outside of a workshop drying room, putting and pushing the iron barrel into the drying room for heating by a worker, and opening the barrel cover after the AEO-9 is completely dissolved to enable the AEO-9 to automatically flow to an AEO-9 storage tank from a discharge port at the bottom of the drying room. By adopting the traditional heating mode, the workload is large, the operation safety coefficient is low, the material is wasted by packaging the iron drum, the cost is increased, the AEO-9 is easy to be polluted, and the heating speed is low. In order to change the heating mode of the AEO-9 packaging iron drum, the AEO-9 is transported and stored by using a tank car and a storage tank respectively, and the AEO-9 packaging iron drum has the advantages of small workload, high operation safety coefficient, capability of reducing the packaging cost, difficulty in pollution of the AEO-9 and high heating speed.
By applying the washing powder spray drying tower tail gas waste heat recycling device, the AEO-9 temperatures in different time periods within continuous 10 days are actually measured in the actual operation process, and the results are summarized as follows:
while the average temperatures in the above table are plotted as a line graph, as shown in fig. 2, showing the AEO-9 temperature change in the heating tank at different time periods.
As can be seen from fig. 2: the whole set of device has high heating efficiency and good heat preservation performance, can smoothly maintain normal production, can be normally used when the temperature of AEO-9 is higher than 30 ℃, and does not need to consume steam for additional heating in the whole process.
By applying the washing powder spray drying tower tail gas waste heat recycling method, in the actual operation process, a factory calculates according to 300 working days per year, and the cost saving statistics are as follows:
as can be seen from the table: the steam can be saved by about 48 ten thousand yuan per year, the steam can be saved by 1000 tons, the packing material can be saved by 230 tons, and the energy-saving, consumption-reducing and environment-friendly significance is remarkable. Meanwhile, the working intensity of operators can be reduced, and the safety factor of the operators to the operation is improved.
The protection scope of the present invention is not limited to the technical solutions disclosed in the specific embodiments, the above description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.
Claims (3)
1. The utility model provides a washing powder spray drying tower tail gas waste heat recovery utilizes device which characterized in that: the device comprises a heat exchanger (1), a plurality of storage tanks (2), a control system (5), a storage tank (6), heating tanks (9) and a raw material conveying system, wherein the plurality of heating tanks (9) are arranged in the heat exchanger (1) in a parallel or series mode, the storage tanks (2), the heating tanks (9) and the storage tank (6) are sequentially connected in series, the storage tanks (2) are connected with the heating tanks (9) through a first pipeline, two unloading pumps (4) are arranged on the first pipeline, the two unloading pumps (4) are one-in-one standby, the heating tanks (9) are connected with the storage tank (6) through a second pipeline, two conveying pumps (7) are arranged on the second pipeline, and the two conveying pumps (7) are one-in-one standby; a steam coil (10) is respectively arranged in the storage tank (2), the heating tank (9) and the storage tank (6), the inlet end of the steam coil (10) is connected with an external steam source through a steam pipe, the outlet end of the steam coil collects condensate through a condensation return pipe, a tail gas inlet and a tail gas outlet which are communicated with tail gas are arranged in the heat exchanger (1) and are communicated with the tail gas through the tail gas inlet, the heating tank (9) in the heat exchanger (1) is heated, and the tail gas after heat exchange is discharged from the tail gas outlet; a pressure measuring instrument (8) is also arranged on the steam pipe, and the unloading pump (4), the delivery pump (7) and the pressure measuring instrument (8) are respectively and electrically connected with the control system (5); the raw material conveying system is a tank car (3), and the tank car (3) is respectively communicated with the input ends of the storage tank (2) and the heating tank (9) through a first pipeline.
2. The washing powder spray drying tower tail gas waste heat recovery and utilization device of claim 1, wherein: the heating tanks (9) are arranged in a plurality of series connection modes, the adjacent heating tanks (9) are arranged in the heat exchanger (1), the input end of the first heating tank (9) is communicated with the storage tank (2) through the first pipeline, the input ends and the output ends of the rest heating tanks (9) are connected with each other in the series connection mode through the pipeline, and the output end of the last heating tank (9) is communicated with the storage tank (6) through the second pipeline.
3. The exhaust gas waste heat recovery device according to claim 2, characterized in that: heating tank (9) are equipped with threely, set up in heat exchanger (1) with the series connection mode between adjacent heating tank (9), wherein the input of first heating tank (9) is linked together through pipeline one and holding vessel (2), the input of second heating tank (9) and the output of first heating tank (9) pass through the pipe connection, its output passes through the pipe connection with the input of third heating tank (9), the output of third heating tank (9) is linked together through pipeline two and hold up tank (6).
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| CN201710554506.0A CN107189889B (en) | 2017-07-10 | 2017-07-10 | Washing powder spray drying tower tail gas waste heat recovery utilizes device |
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| CN201710554506.0A CN107189889B (en) | 2017-07-10 | 2017-07-10 | Washing powder spray drying tower tail gas waste heat recovery utilizes device |
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| CN107189889B true CN107189889B (en) | 2023-04-14 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204569883U (en) * | 2015-04-14 | 2015-08-19 | 广州立白企业集团有限公司 | A kind of washing powder production waste heat recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201329192Y (en) * | 2008-11-28 | 2009-10-21 | 包头市新源稀土高新材料有限公司 | Industrial evaporation tail gas recycling device |
| CN101915415B (en) * | 2010-08-25 | 2012-05-30 | 陈铭 | Boiler exhaust gas recycling and recovering equipment |
| CN203525335U (en) * | 2013-10-24 | 2014-04-09 | 山东正德食品有限公司 | Waste gas recycling device for pipe bundle drier |
| CN104962411B (en) * | 2015-04-14 | 2018-03-02 | 广州立白企业集团有限公司 | A kind of washing powder production heat recovery technique and device |
| CN204601645U (en) * | 2015-05-11 | 2015-09-02 | 广州市鹏能节能科技有限公司 | spray tower tail gas recycling device |
| CN204798896U (en) * | 2015-07-17 | 2015-11-25 | 宁波中药制药股份有限公司 | A recycle device for steam tail gas |
| CN106010591A (en) * | 2016-06-30 | 2016-10-12 | 中国重型机械研究院股份公司 | High-temperature coke breeze organic heat carrier waste heat recycling system |
| CN206184010U (en) * | 2016-11-15 | 2017-05-24 | 南京融点食品科技有限公司 | Instant tea spray drying is tail gas processing device for tower |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204569883U (en) * | 2015-04-14 | 2015-08-19 | 广州立白企业集团有限公司 | A kind of washing powder production waste heat recovery device |
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