CN103611517A - Hargil drying device and drying method - Google Patents
Hargil drying device and drying method Download PDFInfo
- Publication number
- CN103611517A CN103611517A CN201310680579.6A CN201310680579A CN103611517A CN 103611517 A CN103611517 A CN 103611517A CN 201310680579 A CN201310680579 A CN 201310680579A CN 103611517 A CN103611517 A CN 103611517A
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- carclazyte
- nitrogen
- pipe
- tank
- drying device
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- 238000001035 drying Methods 0.000 title claims abstract description 69
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 199
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000010926 purge Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 8
- 230000002349 favourable effect Effects 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a hargil drying device comprising a nitrogen heating tank and a hargil tank for containing hargil, wherein the nitrogen heating tank has a housing and a nitrogen circulating pipe fixed in the housing; a heat source inlet is formed at the top end (or bottom end) of the housing, and a heat source outlet is formed at the bottom end (or top end) of the housing; an inlet end of the nitrogen circulating pipe is arranged below (or above) the housing, and an outlet end is arranged above (or below) the housing; through holes are formed in the housing, corresponding to the inlet end and the outlet end of the nitrogen circulating pipe; an inlet for supplying nitrogen and for conveying hargil is formed at one end of the hargil tank, and an outlet for discharging gas and drying the hargil is formed at the other end of the hargil tank; the inlet is communicated with the outlet end of the nitrogen circulating pipe through a first connecting pipe; and the first connecting pipe is provided with a first branched pipe which is communicated with atmosphere and is provided with a valve. The device can effectively remove water adsorbed in the hargil, which is favorable for drying the hargil. Furthermore, the invention discloses a method applied to the drying device, and the method is favorable for drying the hargil.
Description
Technical field
The present invention relates to Mechanical Industry Technology field, more particularly, relate to a kind of drying device of carclazyte, also relate to a kind of drying means of carclazyte.
Background technology
Carclazyte is that to take clay (being mainly bentonite) be raw material, through inorganic acidification, then through water rinse, the dry adsorbent of making.At present, carclazyte is mainly used in lubricating oil removal of impurities, and it can obviously improve oxidation stability and the colorimetric of lube base oil.During application, carclazyte is added in lubricating oil so that the impurity in its adsorpting lubrication oil leaches carclazyte subsequently in lubricating oil.
But carclazyte very easily absorbs airborne moisture, it can adsorb a large amount of moisture through transportation with after storing, if directly the excessive carclazyte of applied moisture content is lubricated oily removal of impurities, can affect the impurity-eliminating effect of lubricating oil, causes the poor quality of lubricating oil finished product.
In sum, how providing a kind of drying device for carclazyte, to make it have good impurity removal function, and how to provide a kind of drying means that is applied to above-mentioned drying device, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the invention provides a kind of drying device of carclazyte, it can remove the moisture that carclazyte adsorbs in transportation and storage process, is beneficial to carclazyte and effectively removes the impurity in lubricating oil, the quality of raising lubricating oil.The present invention also provides a kind of drying means of carclazyte, and it is applied to drying device provided by the invention, is beneficial to the mass dryness fraction that improves carclazyte, is convenient to the impurity that carclazyte is effectively removed lubricating oil.
For achieving the above object, the invention provides following technical scheme:
A drying device for carclazyte, comprising:
There is shell and the nitrogen heating tank that is fixed on the nitrogen runner pipe in described shell; The top of described shell (or bottom) is provided with thermal source entrance, and the bottom of described shell (or top) is provided with thermal source outlet; The arrival end of described nitrogen runner pipe is positioned at the bottom (or top) of described shell, and the port of export of described nitrogen runner pipe is positioned at the top of described shell (or bottom); Position corresponding with the arrival end of described nitrogen runner pipe and the port of export on described shell is respectively equipped with open-work;
For the carclazyte tank of splendid attire carclazyte, one end of described carclazyte tank is provided with for passing into nitrogen and the entrance that packs carclazyte into, and the other end of described carclazyte tank is provided with the outlet for Exhaust Gas and carclazyte; Described entrance is communicated with by the first connecting leg with the described port of export; Described the first connecting leg is provided with the first branched pipe being communicated with atmosphere, and described the first branched pipe is provided with valve.
Preferably, in above-mentioned drying device, described the first connecting leg is provided with two valves that lay respectively at described the first branched pipe both sides.
Preferably, in above-mentioned drying device, described entrance is positioned at the top of described carclazyte tank, and described outlet is positioned at the bottom of described carclazyte tank.
Preferably, in above-mentioned drying device, the top of described carclazyte tank is provided with the exhaust outlet with blow-down pipe; Described blow-down pipe is provided with valve.
Preferably, in above-mentioned drying device, the exit of described carclazyte tank is provided with the nitrogen discharge pipe with valve.
Preferably, in above-mentioned drying device, also comprise the dew point analysis instrument for detection of gas water content in described nitrogen discharge pipe.
A drying means for carclazyte, is applied to the drying device as described in any one in technique scheme, comprising:
1) open the valve of described the first branched pipe, nitrogen is passed in described nitrogen runner pipe, and make thermal source constantly by described thermal source entrance, flow into described shell, by described thermal source outlet, flow out described shell;
2) detect the nitrogen of discharging at described the first branched pipe place and whether reach preset temperature, if so, enter step 3), if not, return to described step 1);
3) close the valve of described the first branched pipe, nitrogen is constantly flowed in described carclazyte tank by the port of export of described nitrogen runner pipe, and constantly discharged by described outlet, to purge the carclazyte in described carclazyte tank;
4) stop passing into thermal source, stopping passing into nitrogen to described nitrogen runner pipe to described thermal source entrance, by carclazyte by taking out in described carclazyte tank.
Preferably, in above-mentioned drying means, before described step 1), also comprise: step 01) purge described nitrogen runner pipe, so that described nitrogen runner pipe is dry, clean.
Preferably, in above-mentioned drying means, after described step 3), before described step 4), also comprise:
Step 34) detect the water content of the gas of being discharged by described outlet, if water content is less than preset value, enter described step 4), if not, return to described step 3).
Preferably, in above-mentioned drying means, the duration of described step 3) is no less than 24 hours, and the valve that described step 3) often carries out need opening for 4 hours described blow-down pipe once, and to open the duration that the valve of described blow-down pipe closes be 10 minutes at every turn.
The invention provides a kind of drying device of carclazyte, it comprises nitrogen heating tank and carclazyte tank, and wherein, nitrogen heating tank has shell and fixes nitrogen runner pipe in the enclosure; The top of shell (or bottom) is provided with thermal source entrance, and the bottom of shell (or top) is provided with thermal source outlet; The arrival end of nitrogen runner pipe is positioned at the bottom (or top) of shell, and the port of export of nitrogen runner pipe is positioned at the top of shell (or bottom); Position corresponding with the arrival end of nitrogen runner pipe and the port of export on shell is respectively equipped with open-work; Carclazyte tank is for splendid attire carclazyte, and one end of carclazyte tank is provided with for passing into the entrance of nitrogen and conveying carclazyte, and the other end of carclazyte tank is provided with for Exhaust Gas and the outlet of discharging dry carclazyte; Above-mentioned entrance is communicated with the port of export of nitrogen runner pipe by the first connecting leg; Above-mentioned the first connecting leg is provided with the first branched pipe being communicated with atmosphere, and the first branched pipe is provided with valve.
In carclazyte drying device provided by the invention, nitrogen arrives carclazyte tank after heat at nitrogen heating tank place, and purge the carclazyte in carclazyte tank, can effectively remove the moisture in carclazyte, reach the effect that makes carclazyte dry, be beneficial to carclazyte and effectively remove the impurity in lubricating oil, the quality of raising lubricating oil.
The present invention also provides a kind of drying means of carclazyte, and it is applied to drying device provided by the invention, can effectively remove the moisture that carclazyte adsorbs in transportation and storing process.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the drying device of the carclazyte that Fig. 1 provides for the embodiment of the present invention;
The flow chart of the drying means of the carclazyte that Fig. 2 provides for the embodiment of the present invention;
Wherein, in Fig. 1:
The specific embodiment
The embodiment of the invention discloses a kind of drying device of carclazyte, it can remove the moisture that carclazyte adsorbs in transportation and storage process, is beneficial to carclazyte and effectively removes the impurity in lubricating oil, the quality of raising lubricating oil.The embodiment of the present invention also discloses the drying means of severe a kind of carclazyte, and its application and drying device provided by the invention, be beneficial to the mass dryness fraction that improves carclazyte, is convenient to the impurity that carclazyte is effectively removed lubricating oil.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 2, the drying device of the carclazyte that the embodiment of the present invention provides comprises nitrogen heating tank 100 and carclazyte tank 200, and wherein, nitrogen heating tank 100 has shell and fixes nitrogen runner pipe in the enclosure; The top of shell (or bottom) is provided with thermal source entrance 101, and the bottom of shell (or top) is provided with thermal source outlet 102, and instant heating source inlet 101 lays respectively at two ends relative on shell with thermal source outlet 102; The arrival end 104 of nitrogen runner pipe is positioned at the bottom (or top) of shell, the port of export 103 of nitrogen runner pipe is positioned at the top (or bottom) of shell, the arrival end 104 that is nitrogen runner pipe lays respectively at two parts relative on shell with the port of export 103, and it is exported 102 opposite direction to thermal source to the direction of the port of export 103 and by thermal source entrance 101 by arrival end 104; Position corresponding with the arrival end 104 of nitrogen runner pipe and the port of export 103 on shell is respectively equipped with open-work; Carclazyte tank 200 is for splendid attire carclazyte, and one end of carclazyte tank 200 is provided with for passing into nitrogen and carrying the entrance 201 of carclazyte, and the other end of carclazyte tank 200 is provided with the outlet 202 for Exhaust Gas and dry carclazyte; Above-mentioned entrance 201 is communicated with the port of export 103 of nitrogen runner pipe by the first connecting leg; Above-mentioned the first connecting leg is provided with the first branched pipe 301 being communicated with atmosphere, and the first branched pipe 301 is provided with valve.
While applying above-mentioned drying device, first adopt nitrogen heating tank 100 heated nitrogens to suitable temperature, then utilize the carclazyte in the nitrogen blowing carclazyte tank 200 having heated, to reach the object of dry clay.
In the carclazyte drying device that the embodiment of the present invention provides, utilize hot nitrogen to purge the carclazyte in carclazyte tank 200, can effectively remove the moisture in carclazyte, make carclazyte reach dry effect, be beneficial to carclazyte and effectively remove the impurity in lubricating oil, the quality of raising lubricating oil.
In addition, in the carclazyte drying device that above-described embodiment provides, position and thermal source entrance 101 position opposite on shell of the arrival end 104 of nitrogen runner pipe on shell, position and thermal source outlet 102 position opposite on shell of the port of export 103 of nitrogen runner pipe on shell, make in nitrogen heating process its flow direction contrary with the flow direction of thermal source, can guarantee to there is good heat exchange efficiency between nitrogen and thermal source, make nitrogen make full use of the heat of thermal source.
Preferably, in the drying device that above-described embodiment provides, the arrival end 104 of nitrogen runner pipe is positioned at the bottom of shell, and its port of export 103 is positioned at the top of shell; Thermal source entrance 101 is positioned at the top of shell, and thermal source outlet 102 is positioned at the bottom of shell.
Concrete, the first connecting leg that above-described embodiment provides is provided with two valves that lay respectively at the first branched pipe 301 both sides.
In above-mentioned drying device, the entrance 201 of carclazyte tank 200 can be arranged on the bottom of carclazyte tank 200, but in order conveniently to pack carclazyte into, above-mentioned entrance 201 is preferably arranged on the top of carclazyte tank 200, and corresponding, the outlet 202 of carclazyte tank 200 is positioned at the bottom of carclazyte tank 200.
Further, because the moisture of bleaching earth adsorption in carclazyte tank 200 produces steam under the effect of hot nitrogen, and the steam of gaseous state may rest on the place, dead angle at carclazyte tank 200 tops, cannot by the outlet 202 of carclazyte tank 200, be discharged with nitrogen, therefore preferred, in above-mentioned drying device, the top of carclazyte tank 200 is also provided with the blow-down pipe 302 being communicated with atmosphere, and above-mentioned blow-down pipe 302 is provided with valve.During drying device that application the present embodiment provides, can in nitrogen blowing carclazyte process, open at regular intervals the valve certain hour on blow-down pipe 302, so that rest on the steam at carclazyte tank 200 tops, discharge.
Concrete, in the drying device that above-described embodiment provides, outlet 202 places of carclazyte tank 200 are provided with the nitrogen discharge pipe 303 with valve.
While applying above-mentioned drying device, the time that hot nitrogen purges carclazyte tank 200 interior carclazytes can be set to long, to guarantee that carclazyte has qualified aridity, but for fear of energy dissipation, in above-mentioned drying device, be preferably set to also comprise dew point analysis instrument, this dew point analysis instrument is for detection of the water content of gas in nitrogen discharge pipe 303, if the water content of gas is qualified, can stop purging.
The embodiment of the present invention also provides a kind of drying means of carclazyte, and it is applied to the drying device that above-described embodiment provides, and comprises the steps:
1) open the valve of the first branched pipe 301, nitrogen is passed in nitrogen runner pipe, and make thermal source constantly by thermal source entrance 101, flow into shell, by thermal source outlet 102, flow out shell;
In this step, when nitrogen passes in nitrogen runner pipe at first, temperature is lower, the heat exchange amount of itself and thermal source is few, cannot reach and meet the temperature requirement that purges carclazyte, therefore adopt the mode of the valve of opening the first branched pipe 301 that the nitrogen that temperature is lower is entered outside atmosphere, concrete, the valve open on the first connecting leg between branched pipe and nitrogen runner pipe.
While carrying out this step, the first connecting leg can be set to conducting state (i.e. valve open between the first branched pipe 301 and carclazyte tank 200 on the first connecting leg), but be preferably set in nonconducting state (i.e. valve closing between the first branched pipe 301 and carclazyte tank 200 on the first connecting leg), to avoid the nitrogen that temperature is lower to enter in carclazyte tank 200 completely.
2) whether the temperature of detection nitrogen reaches preset temperature, if so, enters step 3), if not, returns to step 1);
In this step, preset temperature can be set to 95 ℃, on the basis of volatilizing fast with the moisture promoting bleaching earth adsorption, saves the energy as far as possible.
3) close the valve of the first branched pipe 301, so that nitrogen stops passing into air; Nitrogen is constantly flowed in carclazyte tank 200 by the port of export 103 of nitrogen runner pipe, and constantly discharged by outlet 202, to purge the carclazyte in carclazyte tank 200;
In this step, make nitrogen constantly flow into carclazyte tank 200 by the port of export 103 of nitrogen runner pipe and need make the valve open between branched pipe and carclazyte tank 200 on the first connecting leg when interior.
4) stop heat source entrance 101 and pass into thermal source, stop passing into nitrogen to nitrogen runner pipe, by carclazyte by the interior taking-up of carclazyte tank 200.
Preferably, in the drying means that above-described embodiment provides, before step 1), also comprise step 01) nitrogen purge gas flow siphunculus, so that nitrogen runner pipe is dry, clean.
Concrete, in the drying means that above-described embodiment provides, in step 3), " make nitrogen stop passing into air; Make nitrogen constantly flow in carclazyte tank 200 by the port of export 103 of nitrogen runner pipe, and constantly discharged by outlet 202 " this step need to carry out certain time length; to guarantee that carclazyte is fully dried; this duration can rule of thumb be set certainly; but preferably by testing result, determine; accordingly; between step 3) and step 4), also comprise, step 34): detection is by the water content of the gas of the outlet 202 places discharge of carclazyte tank 200, if water content is less than preset value, enter described step 4), if not, return to described step 3).In this step, the preset value of water content is specially 40PPM, and in addition, the instrument that completes above-mentioned " detection " action is dew point analysis instrument.
Concrete, in the drying means that above-described embodiment provides, the temperature range that constantly flows into the nitrogen of carclazyte tank 200 in step 3) is set to 95 ℃-110 ℃, so that carclazyte can reach 80 ℃-100 ℃ (this temperature range is the temperature that optimum carclazyte evaporates the moisture of its absorption).In addition, the nitrogen constantly flowing in step 3) in carclazyte tank 200 need be avoided surpassing 300 ℃, to prevent that carclazyte from arriving 300 ℃ and sloughing the crystallization water after above, avoids carclazyte to reduce adsorption capacity because of structural change.
Concrete, in above-mentioned drying means, the duration that " makes nitrogen constantly pass into carclazyte tank 200 " in step 3) to carry out should be no less than 24 hours, and, often carry out need opening for 4 hours the valve of blow-down pipe 302 once, and the duration of valve open is preferably set to 10 minutes on each blow-down pipe 302, so that rest on the steam on carclazyte tank 200 tops, discharge outside carclazyte tank 200.
The drying means that the embodiment of the present invention provides is applied to the drying device that above-described embodiment provides, and can effectively remove the moisture that carclazyte adsorbs in transportation and storing process.In addition, the drying means that the embodiment of the present invention provides also has other effect of the relevant drying device that above-described embodiment provides, does not repeat them here.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a drying device for carclazyte, is characterized in that, comprising:
There is shell and the nitrogen heating tank that is fixed on the nitrogen runner pipe in described shell; The top of described shell (or bottom) is provided with thermal source entrance, and the bottom of described shell (or top) is provided with thermal source outlet; The arrival end of described nitrogen runner pipe is positioned at the bottom (or top) of described shell, and the port of export of described nitrogen runner pipe is positioned at the top of described shell (or bottom); Position corresponding with the arrival end of described nitrogen runner pipe and the port of export on described shell is respectively equipped with open-work;
For the carclazyte tank of splendid attire carclazyte, one end of described carclazyte tank is provided with for passing into nitrogen and the entrance that packs carclazyte into, and the other end of described carclazyte tank is provided with the outlet for Exhaust Gas and carclazyte; Described entrance is communicated with by the first connecting leg with the described port of export; Described the first connecting leg is provided with the first branched pipe being communicated with atmosphere, and described the first branched pipe is provided with valve.
2. drying device according to claim 1, is characterized in that, described the first connecting leg is provided with two valves that lay respectively at described the first branched pipe both sides.
3. drying device according to claim 1, is characterized in that, described entrance is positioned at the top of described carclazyte tank, and described outlet is positioned at the bottom of described carclazyte tank.
4. drying device according to claim 3, is characterized in that, the top of described carclazyte tank is provided with the exhaust outlet with blow-down pipe; Described blow-down pipe is provided with valve.
5. drying device according to claim 1, is characterized in that, the exit of described carclazyte tank is provided with the nitrogen discharge pipe with valve.
6. drying device according to claim 5, is characterized in that, also comprises the dew point analysis instrument for detection of gas water content in described nitrogen discharge pipe.
7. a drying means for carclazyte, is applied to the drying device as described in claim 1-6 any one, it is characterized in that, comprising:
1) open the valve of described the first branched pipe, nitrogen is passed in described nitrogen runner pipe, and make thermal source constantly by described thermal source entrance, flow into described shell, by described thermal source outlet, flow out described shell;
2) detect the nitrogen of discharging at described the first branched pipe place and whether reach preset temperature, if so, enter step 3), if not, return to described step 1);
3) close the valve of described the first branched pipe, nitrogen is constantly flowed in described carclazyte tank by the port of export of described nitrogen runner pipe, and constantly discharged by described outlet, to purge the carclazyte in described carclazyte tank;
4) stop passing into thermal source, stopping passing into nitrogen to described nitrogen runner pipe to described thermal source entrance, by carclazyte by taking out in described carclazyte tank.
8. drying means according to claim 7, is characterized in that, before described step 1), also comprises: step 01) purge described nitrogen runner pipe, so that described nitrogen runner pipe is dry, clean.
9. drying means according to claim 7, is characterized in that, after described step 3), before described step 4), also comprises:
Step 34) detect the water content of the gas of being discharged by described outlet, if water content is less than preset value, enter described step 4), if not, return to described step 3).
10. according to the drying means described in claim 7-9 any one, it is characterized in that, the duration of described step 3) is no less than 24 hours, and the valve that described step 3) often carries out need opening for 4 hours described blow-down pipe once, and to open the duration that the valve of described blow-down pipe closes be 10 minutes at every turn.
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| CN201310680579.6A CN103611517B (en) | 2013-12-13 | 2013-12-13 | The drying device of hargil and drying meanss |
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| CN201310680579.6A CN103611517B (en) | 2013-12-13 | 2013-12-13 | The drying device of hargil and drying meanss |
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| CN103611517B CN103611517B (en) | 2017-03-08 |
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| CN107719980A (en) * | 2017-11-13 | 2018-02-23 | 国网技术学院 | A kind of storing unit for special operation screening clothing |
| CN109453755A (en) * | 2018-12-08 | 2019-03-12 | 大连福佳·大化石油化工有限公司 | Waste and old clay treatment technique and its processing system |
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Cited By (2)
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| CN107719980A (en) * | 2017-11-13 | 2018-02-23 | 国网技术学院 | A kind of storing unit for special operation screening clothing |
| CN109453755A (en) * | 2018-12-08 | 2019-03-12 | 大连福佳·大化石油化工有限公司 | Waste and old clay treatment technique and its processing system |
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| CN103611517B (en) | 2017-03-08 |
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