CN204555553U - A kind of moving fluid bed drying device - Google Patents
A kind of moving fluid bed drying device Download PDFInfo
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- CN204555553U CN204555553U CN201420843728.6U CN201420843728U CN204555553U CN 204555553 U CN204555553 U CN 204555553U CN 201420843728 U CN201420843728 U CN 201420843728U CN 204555553 U CN204555553 U CN 204555553U
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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
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- 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
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Abstract
The utility model relates to a kind of drying device, particularly relate to a kind of moving fluid bed drying device, it comprises constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, described constant rate of drying fluid bed section and described falling-rate periods of drying moving bed section are provided with at least one group of heat exchanger, and described falling-rate periods of drying moving bed section is positioned at below described constant rate of drying fluid bed section; Described moving fluid bed drying device is provided with at least one gas distributor for adjustments of gas flow velocity and pressure; Falling-rate periods of drying moving bed pars infrasegmentalis is provided with the pipeline of logical saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas; Moving fluid bed drying device of the present utility model is divided into constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, wet stock, at the efficient rapid moisture removal of constant rate of drying fluid bed section with at falling-rate periods of drying mobile section low energy consumption degree of depth dehumidification, achieves the optimization of dry run energy ezpenditure coupling.
Description
Technical field
The utility model relates to a kind of drying device, particularly relates to a kind of moving fluid bed drying device.
Background technology
In industrial production, hygroscopic water contained by many types high moisture material is had to need to be reduced to lower moisture content, for brown coal, be no matter burning, transport or for meeting Coal Chemical Industry technological requirement, all often needing first moisture to be brown coal drying to the whole moisture of 30%-70% (wet basis) is the brown coal product of 3%-7% (wet basis).
The equipment of conventional dry high moisture material and method adopt: A) heat smoke is as the direct heated material of thermal source, or B) vapours is as thermal source indirect material.The former due to high by material fugitive constituent, or is subject to the impact of EAT, for material (such as brown coal) the easily catching fire that burning-point is low, there is potential safety hazard; The latter adopts indirect, and the calorific value of steam is high, and process safety is reliable, but the latter needs the fuel consuming high heating value, and financial cost is high.
But, due to most of wet stock, moisture is 30%-70% (wet basis) as before, its critical moisture content is at the brown coal of 12%-15% (wet basis) left and right, its dry run is divided into two stages, is namely dried to the constant rate drying period of critical moisture content from first moisture and is dried to the falling rate drying period of product requirement moisture from critical moisture content.Wet stock drying efficiency when constant rate drying period adopts the technical scheme of CN101581533A is higher; But at falling rate drying period, because rate of drying depends primarily on the migration rate of moisture at internal batch, if continue the technical scheme of CN101581533A, because the motion state of wet stock is little on the impact of its rate of water loss, under the state that simultaneously also this kind of for brown coal material to be dried will be maintained " fluidization " by greater energy consumption, cause the problem that production unit product energy consumption is higher; On the other hand, in dry run in the past, the waste hot steam that drying equipment is discharged mostly directly emits after cleaner dedusting, and self-contained quite a few heat of waste hot steam does not obtain effective recycling, causes the waste of energy.
Therefore, from the security of drying process, economy and high efficiency angle, be necessary in fact a kind of new hygroscopic water separator of drying property rule design for such as this kind of wet stock of brown coal, realize the efficient rapid moisture removal of wet stock at constant rate drying period and the low energy consumption degree of depth dehumidification at falling rate drying period, reach dry run energy ezpenditure coupling optimization, and the used heat steam of output in effective recycling dry run is carried out by the reasonable combination configuration of system inner drying equipment room, to reduce the new superheated steam amount as fluidizing agent of supplementing, thus reduce the energy ezpenditure of production cost and production unit product.
Utility model content
Technical problem to be solved in the utility model is the deficiency overcoming above-mentioned prior art, a kind of moving fluid bed drying device is provided, in conjunction with the characteristic rule of wet stock dry run, the moving fluid bed drying device adopted is divided into constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, the efficient rapid moisture removal of wet stock in constant rate of drying fluid bed section and the low energy consumption degree of depth dehumidification in falling-rate periods of drying moving bed section, achieve dry run energy ezpenditure coupling optimization.
The main technical schemes that a kind of moving fluid bed drying device that the utility model provides adopts is: it comprises: constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, described constant rate of drying fluid bed section and described falling-rate periods of drying moving bed section are provided with at least one group of heat exchanger, and described falling-rate periods of drying moving bed section is positioned at below described constant rate of drying fluid bed section; Moving fluid bed drying device is provided with at least one gas distributor for adjustments of gas flow velocity and pressure, and fluidizing gas enters described moving fluid bed drying device by described gas distributor; Falling-rate periods of drying moving bed pars infrasegmentalis is provided with the pipeline of logical saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas, for operating modes such as system start-stop car, emergency work condition process, or for regulating moving fluid bed drier internal temperature to prevent the technique needs such as material sex change.
The moving fluid bed drying device of the one that the utility model provides also adopts following attached technical scheme:
Described heat exchanger is one or more combinations in built-in heat exchanger, jacketed type exchanger, coil exchanger.
Described drying device also comprises feeder and discharger, and described feeder is connected with described constant rate of drying fluid bed section, and described discharger is connected with described falling-rate periods of drying moving bed section.
One is provided with for the material scarfier of material in loose falling-rate periods of drying moving bed section between described falling-rate periods of drying moving bed section and described discharger, described material scarfier makes saturated or superheated steam or nitrogen or other inert gases enter described falling-rate periods of drying moving bed section in the mode of pulse air intake, and it is material bed to move in drying machine moving bed section through fluidisation from bottom to top, plays material in loose falling-rate periods of drying moving bed section and carry away the effect of hygroscopic water gas.
Described drying device is provided with at least one-level deduster, and described deduster is connected with described drying device top/or top.
Described deduster is one or more tandem compounds in cyclone dust collectors, sack cleaner, electrostatic precipitator and wet scrubber.
Described drying device is provided with a pressue device, and the pipeline being connected with external complement gas is connected with described gas distributor through described pressue device, and/or described deduster is connected with described gas distributor through described pressue device.
Described pressue device is air blast or air-introduced machine or compressor.
Described feeder is arranged on the top of described moving fluid bed drying device, and described discharger is arranged on the bottom of described moving fluid bed drying device, is convenient to material to be dried and moves from the top down by gravity.
Be its critical moisture content through described constant rate of drying fluid bed section dried wet stock water capacity or there is certain skew with its critical moisture content, deviation range is within 20% of its critical moisture content.
Moving fluid bed drier is divided into different bed sections, by controlling the time of staying of wet stock in different bed section, (wet stock approaches to critical moisture content constant rate of drying fluid bed section is dried, within being just its critical moisture content or its critical moisture content 20% scope of downward shift, then entering falling-rate periods of drying moving bed section continues dry), the product being finally dried to qualified hygroscopic water discharges drying device through discharger, the material hygroscopic water removed in dry run is superheated vapor state, discharged by drying device top with the form of used heat steam, two-way can be divided into after dedusting, one tunnel is through blower unit extraction system, another road is returned to the gas distributor on moving fluid bed drying device through pressue device, thus formation closed circuit circulatory system, also can be a road through blower unit extraction system, to pass into the gas distributor on moving fluid bed drying device from the make-up gas outside system through pressue device, thus form open system.Circulation used heat steam or the external complement gas of gas distributor on moving fluid bed drying device is entered through pressue device, except a small amount of heat is provided, wet stock fluidization in constant rate of drying fluid bed section will be entered mainly as fluidizing gas, wet stock realizes indirect heat exchange with the heat transferring medium in the heat exchanger in constant rate of drying fluid bed section under fluidized state, by controlling the time of staying of wet stock in constant rate of drying fluid bed section, wet stock is dried approaches to critical moisture content, then enters falling-rate periods of drying moving bed section and continues dry.In the process, by regulating the frequency converter frequency of cycle pressure device (when cycle pressure device does not wear frequency converter, valve on adjustable press device air outlet pipeline), control the vapor flow rate entering moving fluid bed drying device, pressure and other parameters, come indirect regulation constant rate of drying fluid bed section and the intersegmental stratification interface height of falling-rate periods of drying moving bed, and maintain the fluidization that in constant rate of drying fluid bed section, wet stock is stable, realize the critical moisture content of wet stock corresponding wet stock water capacity and wet stock self when the interface by constant rate of drying fluid bed section and falling-rate periods of drying moving bed section close to coincideing.Described " close to coincideing " refers to that the critical moisture content of wet stock corresponding wet stock water capacity and wet stock self when the interface by constant rate of drying fluid bed section and falling-rate periods of drying moving bed section can be that both fit like a glove, also can be that both exist certain downward shift, deviation range be within 20% scope of wet stock critical moisture content; The wet stock entered in falling-rate periods of drying moving bed section continues to realize indirect heat exchange with the heat transferring medium in the heat exchanger in this section, after being finally dried to the qualified hygroscopic water of product requirement, is discharged by the bottom of discharger from drying device.
The beneficial effect of moving fluid bed drying device of the present utility model is:
1) moving fluid bed drying device of the present utility model is divided into constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, the efficient rapid moisture removal of wet stock in constant rate of drying fluid bed section and the low energy consumption degree of depth dehumidification in falling-rate periods of drying moving bed section, achieve dry run energy ezpenditure coupling optimization.
2) the used heat steam that moving fluid bed drying device of the present utility model produces returns in constant rate of drying fluid bed section through pressue device and recycles as fluidizing agent, realize used heat steam high efficiente callback recycling, greatly reduce the energy ezpenditure of production unit product.
3) air displacement in drying device goes out by the pipeline of logical saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas of the present utility model available saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas under device start-stop car or special operation condition, whole overheating steam drying process is oxygen-free environment, eliminates inflammable and explosive potential safety hazard.
Accompanying drawing explanation
Fig. 1 is closed circuit circulatory system structural representation of the present utility model
Fig. 2 is open system structural representation of the present utility model
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
See Fig. 1, moving fluid bed drying device 10 of the present utility model comprises feeder 1, moving fluid bed drier 7 and discharger 2; Described feeder 1 is arranged on the top of described moving fluid bed drier 7, and described discharger 2 is arranged on the bottom of described moving fluid bed drier 7, is convenient to material to be dried and moves from the top down by gravity.
Described moving fluid bed drier 7 comprises constant rate of drying fluid bed section 71, falling-rate periods of drying moving bed section 72 and is connected with saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas pipeline 75; Described feeder 1 is connected with described constant rate of drying fluid bed section 71, described falling-rate periods of drying moving bed section 72 is arranged on below described constant rate of drying fluid bed section 71, described discharger 2 is connected with described falling-rate periods of drying moving bed section 72, described in be connected with the bottom that saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas pipeline 75 is arranged on described falling-rate periods of drying moving bed section 72.
Described constant rate of drying fluid bed section 71 and described falling-rate periods of drying moving bed section 72 are provided with at least one group of heat exchanger 6, preferably, according to the characteristic of material to be dried, described constant rate of drying fluid bed section 71 and described falling-rate periods of drying moving bed section 72 can be respectively equipped with many group built-in heat exchangers 6, or to move on drying device 7 outer wall in described fluidisation and be provided with coiled or jacketed type exchanger, described heat exchanger 6 or described coiled or jacketed type exchanger provide heat by steam or hot water or organic molten salt or flue gas or conduction oil, connect often organize exchanger heat source inlet branch road on can determine whether with adjustment heat transferring medium flow according to designing requirement, pressure or the isoparametric device of temperature, and the feed water system of boiler that described heat exchanger 6 is external with drying device 10 or it be connected with equipment, connect described heat exchanger 6 and the external feed water system of boiler of drying device 10 or it and according to technological requirement, the structures such as steam trap can be set arbitrarily with on the branch road between equipment or main line, after heat exchange, to the feed water system of boiler or according to technological requirement, it uses the condensation flow generated in heat exchanger 6.Described moving fluid bed drier 7 is provided with at least one gas distributor 73, described gas distributor 73 can be arranged on the optional position of moving fluid bed drier 7 according to technological requirement, preferably, described gas distributor is arranged between described two adjacent groups heat exchanger 6.
Preferably, drying device 10 also comprises material scarfier 74, described material scarfier 74 is between described falling-rate periods of drying moving bed section 72 and discharger 2, described material scarfier makes saturated or superheated steam or nitrogen or other inert gases enter described falling-rate periods of drying moving bed section in the mode of pulse air intake, and it is material bed to move in drying machine moving bed section through fluidisation from bottom to top, plays material in loose falling-rate periods of drying moving bed section and carry away the effect of hygroscopic water gas.
See Fig. 1, preferably, drying device 10 also comprises deduster 3, pressue device 4 and blower unit 5, described deduster 3 can be one-level also can be multistage, the top of moving fluid bed drier 10 is connected with deduster 3 (being preferably first order deduster), deduster 3 (being preferably final stage deduster) is connected with blower unit 5, can be connected with pressue device 4 simultaneously, a waste hot steam part after deduster 3 dedusting is through blower unit 5 extraction system, another part is delivered to described gas distributor 73 as fluidizing agent after pressue device 4 pressurizes, form closed circuit circulatory system.
See Fig. 2, preferably, drying device 10 also comprises blower unit 5, deduster 3 (being preferably final stage deduster) can be connected with blower unit 5, waste hot steam after deduster 3 dedusting is by blower unit 5 directly its use of extraction system, the fluidizing agent gas supplemented is delivered to described gas distributor 73 after being pressurizeed by pressue device 4, forms open system.
Preferably, described deduster 3 is one or more tandem compounds in cyclone dust collectors, sack cleaner, electrostatic precipitator and wet scrubber.
Below the embodiment that brown coal chosen by wet stock to be dried:
First, saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas are delivered in moving fluid bed drier 7 by gas piping 75, displace the air in moving fluid bed drier 7; The brown coal raw coal of moisture 30%-70% (wet basis) is formed after fragmentation, screening the brown coal particle that particle diameter is less than 6mm, brown coal particle is sent in moving fluid bed drier 7 by feeder 1; Overheated or saturated vapor thermal source are sent to the heat exchanger 6 in constant rate of drying fluid bed section 71, overheated or saturated vapor thermal source are sent into the heat exchanger 6 of falling-rate periods of drying moving bed section 72, the steam in superheat state coming Self-duster 3 or external complement passes into the gas distributor 73 in described constant rate of drying fluid bed section 71 through pressue device 4, described superheated steam, except providing a small amount of heat, enters described constant rate of drying fluid bed section 71 mainly as fluidizing agent.Wet brown coal particle in described constant rate of drying fluid bed section 71 realizes indirect heat exchange with the steam in heat exchanger 6 under fluidized state, by controlling the wet time of staying of brown coal particle in constant rate of drying fluid bed section 71, brown coal particle is dried approaches to its critical moisture content, as for critical moisture content being the dissimilar brown coal of 12%-15% (wet basis) left and right, in constant rate of drying fluid bed section 71, just wet brown coal particle can be dried to its critical moisture content and 12%-15% (wet basis) left and right by original water content, or within being dried to its critical moisture content 20% scope of downward shift, namely moisture is in 9%-18% (wet basis) left and right, then enter described falling-rate periods of drying moving bed section 72 and continue drying, in the process, by regulating the frequency converter frequency of cycle pressure device 4 (when cycle pressure device 4 does not wear frequency converter, valve on adjustable cycle pressure device 4 air outlet pipeline), control the superheated steam amount entering constant rate of drying fluid bed section 71, thus ensure that the material in constant rate of drying fluid bed section 71 maintains stable fluidization, the brown coal particle entered in falling-rate periods of drying moving bed section 72 continues to realize indirect heat exchange with the steam in heat exchanger 6, finally be dried to the satisfactory qualified brown coal product as 3%-7% (wet basis) moisture, then discharge drying device by discharger 2.In the process, saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas is passed in the pipeline 75 that falling-rate periods of drying moving bed section 72 bottom is provided with, for system start-stop car, emergency work condition process or regulate moving fluid bed drier 7 internal temperature, as when system is initially driven, before wet brown coal particle sends into moving fluid bed drier 7 by feeder 1, first 75 in moving fluid bed drier 7, pass into saturated or superheated steam or nitrogen or inert gas by the road, air displacement inner in moving fluid bed drier 7 is gone out system, obtain anaerobic dry environment with the generation spontaneous combustion of brown coal particle or the blast that prevent from sending in moving fluid bed drier 7 or chemical reaction occurs, or when system shutdown, emergency work condition process, 75 pass into saturated or superheated steam or nitrogen or inert gas to maintain the oxygen-free environment of moving fluid bed drier 7 inside by the road, in case brown coal particle generation spontaneous combustion in fluid stopping moving bed dryer 7 or blast or chemical reaction occurs, or regulate moving fluid bed drier 7 internal temperature according to process requirements, to avoid material decomposition or sex change etc. occur during drier heat sensitive materials in dry run.In the process, for making brown coal particle mobile blanking in falling-rate periods of drying moving bed section 72 smooth and easy, material scarfier 74 is provided with in described falling-rate periods of drying moving bed section 72, saturated or superheated steam or nitrogen or other inert gases enter in falling-rate periods of drying moving bed section 72 through described material scarfier in the mode of pulse air intake, material bed from bottom to top through in described falling-rate periods of drying moving bed section 72 of saturated or superheated steam or nitrogen or other inert gas, except a small amount of heat is provided, mainly play material in loose described falling-rate periods of drying moving bed section 72 and carry away the effect of moisture.
Fluidizing gas, loose gas, the steam that the moisture of brown coal particulate removal is formed form waste hot steam jointly, to be superheated steam state discharged by the top/of drying device 10 or top this waste hot steam, after deduster 3 dedusting, return to the gas distributor 73 in constant rate of drying fluid bed section 71 or through blower unit 5 extraction system through cycle pressure device 4.Steam in the heat exchanger 6 that drying device 10 is built-in goes the feed water system of boiler or according to its use of technological requirement through the condensed water that indirect heat exchange generates, discharge often organize the condensed water that heat exchanger 6 generates each branch road on or the house steward that converges of each branch road can be arranged arbitrarily as devices such as steam traps according to designing requirement.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (10)
1. a moving fluid bed drying device, it comprises: constant rate of drying fluid bed section and falling-rate periods of drying moving bed section, described constant rate of drying fluid bed section and described falling-rate periods of drying moving bed section are provided with at least one group of heat exchanger, and described falling-rate periods of drying moving bed section is positioned at below described constant rate of drying fluid bed section; It is characterized in that:
Moving fluid bed drying device is provided with at least one gas distributor for adjustments of gas flow velocity and pressure; Falling-rate periods of drying moving bed pars infrasegmentalis is provided with the pipeline of logical saturated or superheated steam or nitrogen or wet stock hygroscopic water gas or inert gas, for system start-stop car, emergency process or regulate moving fluid bed drying device internal temperature.
2. the moving fluid bed drying device of one according to claim 1, is characterized in that: described heat exchanger is one or more combinations in built-in heat exchanger, jacketed type exchanger, coil exchanger.
3. the moving fluid bed drying device of one according to claim 2, is characterized in that: also comprise feeder and discharger, described feeder is connected with described constant rate of drying fluid bed section, and described discharger is connected with described falling-rate periods of drying moving bed section.
4. the moving fluid bed drying device of one according to claim 3, is characterized in that: be provided with a material scarfier between described falling-rate periods of drying moving bed section and described discharger.
5., according to the arbitrary described moving fluid bed drying device of one of claims 1 to 3, it is characterized in that: described drying device is provided with at least one-level deduster, described deduster is connected with described drying device top/or top.
6. the moving fluid bed drying device of one according to claim 5, is characterized in that: described deduster is one or more tandem compounds in cyclone dust collectors, sack cleaner, electrostatic precipitator and wet scrubber.
7. the moving fluid bed drying device of one according to claim 5, it is characterized in that: described drying device is provided with a pressue device, the described pipeline being connected with external complement gas is connected with described gas distributor through described pressue device, and/or described deduster is connected with described gas distributor through described pressue device.
8. the moving fluid bed drying device of one according to claim 7, is characterized in that: described pressue device is air blast or air-introduced machine or compressor.
9. the moving fluid bed drying device of one according to any one of claim 3 or 4, it is characterized in that: described feeder is arranged on the top of described moving fluid bed drying device, described discharger is arranged on the bottom of described moving fluid bed drying device, is convenient to material to be dried and moves from the top down by gravity.
10. according to the arbitrary described moving fluid bed drying device of one of claims 1 to 3, it is characterized in that: be its critical moisture content through described constant rate of drying fluid bed section dried wet stock water capacity or there is certain downward shift with its critical moisture content, deviation range is within 20% of its critical moisture content.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014202422 | 2014-05-02 | ||
| AU2014202422A AU2014202422A1 (en) | 2014-01-06 | 2014-05-02 | System for drying particulate materials |
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| CN204555553U true CN204555553U (en) | 2015-08-12 |
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| CN201420843728.6U Active CN204555553U (en) | 2014-05-02 | 2014-12-26 | A kind of moving fluid bed drying device |
| CN201420843685.1U Active CN204555606U (en) | 2014-05-02 | 2014-12-26 | A kind of drying system of two-stage drying machine combination |
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| CN201420843685.1U Active CN204555606U (en) | 2014-05-02 | 2014-12-26 | A kind of drying system of two-stage drying machine combination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043845A (en) * | 2019-11-22 | 2020-04-21 | 宁夏新龙蓝天科技股份有限公司 | Novel vertical drying tower |
| CN111504007A (en) * | 2020-04-29 | 2020-08-07 | 山东德曦环境科技有限公司 | Steam closed-loop pulsating movement combined drying system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466196B (en) * | 2015-12-25 | 2018-01-19 | 郑州博大浓缩干燥设备有限公司 | Economic benefits and social benefits vacuum restrains drying system |
| CN106517727A (en) * | 2016-12-26 | 2017-03-22 | 南昌航空大学 | Sludge two-grade united energy-saving drying device and method |
| CN109605631B (en) * | 2018-12-12 | 2021-03-02 | 中国石油化工股份有限公司 | Energy-saving rubber fluidization paddle integration drying system |
| CN110657647B (en) * | 2019-10-23 | 2024-06-07 | 挪亚圣诺（太仓）生物科技有限公司 | Polyunsaturated fatty acid microcapsule drying system and drying process thereof |
| CN114877627B (en) * | 2022-06-02 | 2023-12-05 | 沈阳爱科斯科技有限公司 | Vacuum low-temperature drying device |
-
2014
- 2014-12-26 CN CN201420843728.6U patent/CN204555553U/en active Active
- 2014-12-26 CN CN201420843685.1U patent/CN204555606U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043845A (en) * | 2019-11-22 | 2020-04-21 | 宁夏新龙蓝天科技股份有限公司 | Novel vertical drying tower |
| CN111504007A (en) * | 2020-04-29 | 2020-08-07 | 山东德曦环境科技有限公司 | Steam closed-loop pulsating movement combined drying system |
| CN111504007B (en) * | 2020-04-29 | 2021-10-12 | 山东德曦环境科技有限公司 | Steam closed-loop pulsating movement combined drying system |
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