CN102029084A - Sieve bend filtering device for aquaculture - Google Patents
Sieve bend filtering device for aquaculture Download PDFInfo
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- CN102029084A CN102029084A CN2010105396026A CN201010539602A CN102029084A CN 102029084 A CN102029084 A CN 102029084A CN 2010105396026 A CN2010105396026 A CN 2010105396026A CN 201010539602 A CN201010539602 A CN 201010539602A CN 102029084 A CN102029084 A CN 102029084A
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Abstract
The invention relates to a sieve bend filtering device for aquaculture, which comprises a water tank, a sieve bend and an automatic cleaning device, wherein a clear water trough is formed at the bottom of the water tank, a water outlet pipe is arranged on one side of the clear water trough, an overflow trough is arranged at the upper end part on the front side of the water tank, and a water inlet pipe is arranged on the outer side wall of the overflow trough; the upper end of a net body of the sieve bend is connected to the upper edge on the inner side of the overflow trough, the lower end is connected to the upper edge on the inner side of a pollution collecting trough fixed at the bottom of the water tank, and a pollution discharge port is arranged at the bottom of the pollution collecting trough; and the automatic cleaning device comprises a cleaning brush and a driving device, the bottom surface of the cleaning brush and the inner surfaces of the sieve bend and the pollution collecting trough are in consistent shapes, the driving device comprises a motor, a reduction gearbox and a transmission mechanism, the transmission mechanism comprises a threaded lead screw and a movable nut, and travel switches are further respectively arranged at two ends of the threaded lead screw. The favorable point is that a programmable timer is further arranged in the driving device, so that dirt retention on the net surface of the sieve bend can be removed by driving the cleaning brush to reciprocate along the horizontal direction which is parallel to the sieve bend in a timing manner; and the sieve bend filtering device for the aquaculture is simple in structure, reliable for operation and obvious in energy-saving effect.
Description
Technical field
The present invention relates to the water body filtering technique of aquaculture field, particularly relate to a kind of used for aquiculture sieve bend filter plant with automatic flushing device.
Background technology
Circulating water treatment technology is the core of aquaculture system, and the former technical advance has determined the latter's advance, stability and performance driving economy.The top priority of all aquaculture system water treatments is exactly the suspended solid of removing in the water body, these suspended solids comprise inorganic and organic composition, the food residues that mainly result from biological drainage, biogel and do not eaten etc., its granular size does not wait from several centimetres to several microns.Organic part, (volatile suspended solids VSS) encourages the outstanding of oxygen consumption and biological combustion problem to so-called VSS.Inorganic constituents is then impelled the formation of siltation.Distinguish from the diameter of particle, can be divided into dissolved solid, colloidal solid, super colloidal solid and precipitable solid with culturing water solid, as shown in Figure 1.Wherein term " thin solid " is meant that those diameters are less than 100 microns solid particles that are not easy to be deposited in the water.(Total suspended solid, TSS) concentration is defined in the quality that surpasses the above particle of 1 micron diameter in the water of known volume to total suspended solid.Comparatively speaking, in the middle of the cyclic culture water system, thin solid more is difficult to control and causes more problem.
In circulating water treatment technology, can take make a return journey particle in dewatering of one or more filtering techniques, comprise deposition, coarse filtration, Blang's diffusion, interception etc., implement by filters such as screen cloth, granule medium or bubble media.Wherein, the practice significance of Blang's diffusion and interception technology is limited, thereby physical filtering is the main means of control water body solid suspension concentration, and the quality of its effect directly has influence on the effect of biological cleaning and the growth of fish.The physical filtering equipment that is used for aquaculture system at present mainly contains rotary drum Microfilter, sieve bend, protein separator, sand filter etc.Wherein, rotary drum Microfilter as shown in Figure 2 is mainly used in the solid particulate matter of removing more than 60 microns (TSS), and the equipment body material can be divided into metal (mainly being 316 stainless steels and titanium material) and nonmetal (mainly being PP and PVC) two classes.The Microfilter of these two kinds of materials does not almost have difference on operation principle, removal efficient, operational mode.Aspect automatic cleaning, generally adopt back purge system, regularly screen cloth is implemented reciprocal flushing, the mud that deposits in compass screen surface is also discharged downstream along the flow direction decontamination pit.On disposal ability, Microfilter has covered from 10m
3/ h is to about 150m
3The interval of/h; Filter mesh and be generally 170 order to 300 orders, the situation of indivedual employing 500 order precision is also arranged; The rotary drum rotating speed is generally 1-5rpm(and lowers along with the roller diameter increase); Traditional approach drives drum rotating based on the large speed ratio decelerator, generally can reach every processing 100m on the specific energy consumption
3The level of power consumption 0.3 degree.
Figure 3 shows that and adopt the water body purification system schematic of sieve bend as filter, the enlarged diagram of sieve bend water body filter wherein as shown in Figure 4.Sieve bend is a kind of technical separator that comes from the ore in sand form screening, mainly be to utilize the sieve seam to arrange in the fishery cultivating water treatment perpendicular to the fixing compass screen surface realization water body Separation of Solid and Liquid of the circular arc of water inlet water (flow) direction, the most frequently used sieve gap is 0.25mm, can effectively remove about 80% particle diameter greater than 70 microns solid suspension matter, has advantage simple in structure, that cost is low, be need not extra machine power, good energy-conserving effect with the main distinction of rotary drum Microfilter.Its shortcoming is the automatic cleaning difficult problem of solution arc compass screen surface still not yet in effect, culturing load when higher even need per hour manually scrub compass screen surface once approximately, to keep the operate as normal of filter.
Therefore, aspect the physical filtering of breeding water body, need a kind of new filter plant really, can overcome the deficiencies in the prior art part, effectively increase work efficiency, be convenient to realize automatic cleaning, simultaneously the new technology of energy efficient in a large number again.
Summary of the invention
The purpose of this invention is to provide a kind of used for aquiculture sieve bend filter plant, having timing automatic cleaning deposits in the automatic flushing device of the dirt of screen surface, be suitable for that the aquaculture water is carried out the high-quality water body of high efficiency and filter, meet the technology trends of low-carbon energy-saving requirement simultaneously.
For achieving the above object, one aspect of the present invention provides a kind of novel sieve bend filter plant, comprise water tank, sieve bend and automatic flushing device, wherein water tank bottom forms Rinsing Area, one side is provided with outlet pipe in the Rinsing Area bottom, and be provided with overflow launder near water tank nock portion, be provided with water inlet pipe in the lateral wall of overflow launder; The upper end of sieve bend is connected in the inboard upper limb of overflow launder, and its lower end is connected in the inboard upper limb of sewage sump of the water tank bottom that is fixed on the opposite side relative with the overflow launder side, and the bottom of sewage sump is provided with sewage draining exit.Automatic flushing device is made up of cleaning brush and drive unit, and wherein, the scraping blade of cleaning brush is made by the rubber material, and the bottom surface of cleaning brush scraping blade is consistent with the inner surface configuration of the wire side of sieve bend and sewage sump; Drive unit comprises motor, reduction box and transmission mechanism, and this transmission mechanism preferably is made up of threaded screw rod and traveling nut, also is respectively equipped with travel switch separately in the two ends of threaded screw rod.Advantageously, also be provided with programmable timer in the drive unit, motor is by the pre-set time interval timing operation, thereby driving cleaning brush along continuous straight runs is parallel to the sieve bend wire side and moves back and forth, and is discharged to outside the water tank by sewage draining exit in the dirt on screen surface and sewage sump surface thereby will deposit.
By technique scheme, the present invention has advantageously provided the used for aquiculture sieve bend filter plant that problem is cleaned in a kind of effective solution automatically, have simple in structure, reliable, the energy-saving effect remarkable advantages.
Description of drawings
Fig. 1 is the schematic diagram of solid particle classification in the aquaculture system.
Fig. 2 is the schematic diagram of a kind of drum filtration equipment in the existing water body purification of aquaculture system;
Fig. 3 is for adopting the water body purification system schematic of traditional fixedly sieve bend filter plant.
Fig. 4 is the enlarged diagram of the sieve bend filter plant in the water body purification system of Fig. 3.
Fig. 5 is that wherein the top cover of water tank and part wall box are removed so that show the structure that it is inner according to the schematic perspective view of a kind of sieve bend filter plant of principle of the invention design.
Fig. 6 is the front view according to sieve bend filter plant of the present invention, and wherein the part wall box of water tank front portion is removed so that show inner automatic flushing device.
Fig. 7 is the side view according to sieve bend filter plant of the present invention, and wherein the wall box of water tank side is removed so that show inner automatic flushing device.
Fig. 8 is the vertical view according to sieve bend filter plant of the present invention, and wherein the top cover of water tank is removed so that show inner structure.
Fig. 9 is the schematic diagram according to the drive unit transmission mechanism in the sieve bend filter plant of the present invention.
The specific embodiment
Describe the primary structure and the operation principle thereof of specific embodiments of the invention in detail below in conjunction with accompanying drawing.
As shown in Figure 5, sieve bend filter plant 100 according to the present invention mainly comprises the water tank 110 that is used to hold the circulating water body that needs filter, is arranged on sieve bend 120 and automatic flushing device in the casing.
With reference to figure 6 to 8, water tank 110 is essentially the cuboid box, and is provided with footing or base, and the top upward opening of water tank 110 can be established a top cover (not shown) in this opening part; The bottom of water tank 110 is the Rinsing Area 111 that holds the clear water after the filtration, and the position of pressing close to the bottom in these Rinsing Area 111 1 sides is provided with outlet pipe 112; The nock portion of water tank 110 is provided with overflow launder 113, lateral wall in overflow launder 113 is provided with water inlet pipe 114, and the opposite of the madial wall upper limb of overflow launder 113 also is provided with water fender 115, interval with overflow launder 113 maintenance certain distances, the madial wall upper limb that the stream that both can supply water passes through overflow launder 113 flows into water tank 110 inside, plays the dash effect of splashproof drainage again.
The screen cloth of sieve bend 120 can be selected the stainless steel materials punching of various different sizes or laser beam drilling and make, and general preferable mesh order number can be selected hundreds of orders, as 200 orders.The width of dictyosome is slightly less than the width of water tank 110 inside.The dictyosome upper end is connected with the inside edge of overflow launder 113, and the dictyosome lower end links together with the medial margin that is fixed in the sewage sump 121 of Rinsing Area 111 bottoms.This sewage sump 121 is located at Rinsing Area 111 bottoms and the relative opposite side of overflow launder 113 1 sides.The dictyosome of sieve bend 120 is circular arc from its upper end on the whole to the lower end and extends water tank 110 inside, and design angle is about 45 °.Bottom at sewage sump 121 also is provided with sewage draining exit 122, and the dirt that is collected in sewage sump 121 can be discharged outside the water tank 110 by blow-off pipe 123 from sewage draining exit 122.
Automatic flushing device of the present invention is made up of cleaning brush 130 and drive unit 140.Drive unit 140 drives the cleaning brush 130 of similar wiper shape, and along continuous straight runs reciprocatingly moves and finishes the cleaning of sieve bend 120 wire sides on the dictyosome surface of sieve bend 120.The scraping blade of cleaning brush 130 is preferably made by the rubber material, its special feature is, the bottom surface of cleaning scraping blade is designed to consistent with the inner surface configuration of the wire side of sieve bend 120 and sewage sump 121, thereby the scraping blade of the cleaning brush 130 that the shape of order and sieve bend 120 and sewage sump 121 coincide can more effectively be implemented cleaning to the long-pending silt of wire side.
According to an exemplary embodiment of the present invention, drive unit 140 generally includes motor 141, reduction box 142 and transmission mechanism, according to the preferred embodiment of the present invention shown in the figure, transmission mechanism comprises a pair of screw thread pair, be retaining thread leading screw 143 and traveling nut 144, its CONSTRUCTED SPECIFICATION is found in Fig. 9.Threaded screw rod 143 along continuous straight runs extend, parallel with the wire side of sieve bend 120, the two lateral walls of water tank 110 casings rotatably is fixed at its two ends, left and right sides respectively by bearing, wherein an end then connects the output shaft of reduction box 142, drive this threaded screw rod 143 rotations by motor 141, laterally move along threaded screw rod 143 thereby promote nut 144.Be respectively equipped with travel switch separately at the two ends of threaded screw rod 143, when nut 144 runs to the position of touching travel switch, even motor 141 reverses or stops.In addition, also be provided with programmable timer in the drive unit 140 in the automatic flushing device, motor 141 is according to the time interval that pre-sets and startup work.According to a particular embodiment of the invention, threaded screw rod 143 materials can be selected steel for use No. 45, and the material of nut 144 can be selected bronze, but the purpose of invention and claimed technical scheme and Material Selection are irrelevant.
Basic functional principle with automatic flushing device according to the present invention is as follows.
The breeding water that needs to filter flows into water inlet overflow launder 113 by water inlet pipe 114, when overflow launder 113 water bodys hold when full, current are overflowed and are flowed to sieve bend 120 wire sides by overflow launder 113 inboard upper limbs and filter, and water fender 115 can prevent that current from splashing and guide current.Water after the filtration enters Rinsing Area 111 by screen cloth, then flows into next processing unit by outlet pipe 112; And the residue that sieve bend 120 filters flows into sewage sump 121 along current by screen cloth 120 tops, after discharge through sewage draining exit 122 and blow-off pipe 123.After work a period of time, can be detained part stickum on sieve bend 120 wire sides at the sieve bend filter plant, obstruction to a certain degree can take place in mesh, causes filter efficiency to descend.Automatic flushing device can move from command of execution motor start-up according to the time interval that timer is set.For instance, shilling threaded screw rod 143 turns clockwise and promotes nut 144 and move forward, thereby driving 130 pairs of sieve bend 120 wire sides of cleaning brush that are fixed on the nut 144 cleans, when cleaning brush 130 moves to threaded screw rod 143 tail ends, can touch the travel switch of tail end, make the motor 141 automatic switchover senses of current then, making threaded screw rod 143 begin to be rotated counterclockwise promotion nut 144 back moves, cleaning brush 130 is mobile in the other direction to be cleaned sieve bend 120 wire sides simultaneously thereby drive, up to arriving original position, it is out of service that nut 144 touches the motor 141 in travel switch season of head end, finishes once coming and going cleaning process.It should be noted that in automatic flushing device work the sieve bend filter plant can normally move water body and filter.
According to preferred embodiment of the present invention, the movement velocity of cleaning brush can be selected 0.02 m/s.Particularly, when pitch is that the threaded screw rod rotating speed of 10 mm is when being 120r/min, the compass screen surface scavenging period is predeterminable to be to clean once in 2 hours at interval, cleans longly can comprise the leading screw another mistake hour hands rotary screw that turns clockwise earlier at least at every turn, thereby makes nut finish reciprocation cycle one time.Certainly, be understandable that the timer of drive unit 140 can set interval according to the operation needs of reality, cleaning brush operation round number of times once also is not limited only to once come and go.
Although the preferable specific embodiment of the present invention has been described in explanation by way of example above, protection scope of the present invention is not limited in above-mentioned explanation, but is defined by all technical characterictics and the equivalent technologies feature thereof that appended claim provides.Persons skilled in the art are understandable that, under the essence and marrow prerequisite that does not deviate from the present invention and instructed, any modifications and variations may still drop within the protection domain of claim of the present invention.
Claims (7)
1. a sieve bend filter plant (100) comprises water tank (110) and is arranged on the interior sieve bend (120) of water tank (110), wherein
The top upward opening of described water tank (110), Rinsing Area (111) is formed on its bottom, one side is provided with outlet pipe (112) in Rinsing Area (111) bottom, and be provided with overflow launder (113) near water tank (110) front side upper end, be provided with water inlet pipe (114) in the lateral wall of overflow launder (113);
Described sieve bend (120), basically rectangular, its upper end is connected in the inboard upper limb of overflow launder (113), its lower end is connected in the inboard upper limb of sewage sump (121) of water tank (110) bottom that is fixed on the opposite side relative with overflow launder (113) side, and the bottom of sewage sump (121) is provided with sewage draining exit (122); It is characterized in that also comprising
Automatic flushing device, form by cleaning brush (130) and drive unit (140), the wire side of the bottom surface of described cleaning brush (130) and sieve bend (120) and the inner surface configuration of sewage sump (121) are consistent, described drive unit (140) compartment of terrain on schedule drives cleaning brush (130) along continuous straight runs and is parallel to sieve bend (120) wire side and reciprocatingly moves, and is discharged to outside the water tank (110) by sewage draining exit (122) in sieve bend (120) and the surperficial dirt of sewage sump (121) thereby will deposit.
2. sieve bend filter plant according to claim 1 is characterized in that described drive unit (140) comprises motor (141), reduction box (142) and transmission mechanism.
3. sieve bend filter plant according to claim 2, it is characterized in that described transmission mechanism comprises a threaded screw rod (143) and a traveling nut (144), described threaded screw rod (143) along continuous straight runs extends and is parallel with sieve bend (120) wire side, the relative two side of water tank (110) rotatably is fixed in by bearing respectively in its two ends, left and right sides, and wherein an end connects the output shaft of reduction box (142).
4. sieve bend filter plant according to claim 1 is characterized in that described cleaning brush (130) made by the rubber material.
5. sieve bend filter plant according to claim 1 is characterized in that being respectively equipped with at the two ends of described threaded screw rod (143) travel switch separately.
6. sieve bend filter plant according to claim 1 is characterized in that the opposite of the madial wall upper limb of described overflow launder (113) also is provided with the water fender (115) that keeps at a certain distance away.
7. sieve bend filter plant according to claim 1 is characterized in that also being provided with programmable timer in the described drive unit (140).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105396026A CN102029084A (en) | 2010-11-11 | 2010-11-11 | Sieve bend filtering device for aquaculture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105396026A CN102029084A (en) | 2010-11-11 | 2010-11-11 | Sieve bend filtering device for aquaculture |
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| CN102029084A true CN102029084A (en) | 2011-04-27 |
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| CN2010105396026A Pending CN102029084A (en) | 2010-11-11 | 2010-11-11 | Sieve bend filtering device for aquaculture |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102657968A (en) * | 2012-05-14 | 2012-09-12 | 广东海洋大学 | Arc screen filtering equipment capable of being automatically cleaned |
| CN102921209A (en) * | 2012-11-08 | 2013-02-13 | 大连橡胶塑料机械股份有限公司 | Water-powder filter device of particle cooling water system |
| CN103083957A (en) * | 2013-01-14 | 2013-05-08 | 哈尔滨恒通排水设备制造股份有限公司 | Swing type solid and liquid separation device |
| CN103691671A (en) * | 2013-12-17 | 2014-04-02 | 大连海洋大学 | Automatic cleaning device of arc sieve |
| CN103861359A (en) * | 2014-04-03 | 2014-06-18 | 金键栋 | Liquid supplying device with layered-structure sealing bar and buffer-type spacing pipeline section |
| CN103961921A (en) * | 2014-05-13 | 2014-08-06 | 泰顺派友科技服务有限公司 | Robot device for automatically flushing conical sieve of recirculating aquaculture system |
| CN105251259A (en) * | 2015-10-27 | 2016-01-20 | 成都绿迪科技有限公司 | Sewage filtering device |
| CN106857378A (en) * | 2016-12-30 | 2017-06-20 | 浙江海洋大学 | Cultivation shrimp ponds dirt collection blowdown apparatus |
| CN107050950A (en) * | 2017-01-23 | 2017-08-18 | 浙江腾荣环保科技有限公司 | A kind of filter with impeller |
| CN107184070A (en) * | 2016-03-15 | 2017-09-22 | 金采产品有限公司 | juice extraction device |
| CN107821305A (en) * | 2017-10-11 | 2018-03-23 | 佛山汇众森泰科技有限公司 | A kind of novel domestic fish jar cleaning plant |
| CN110127784A (en) * | 2019-06-05 | 2019-08-16 | 贵州省水产研究所 | A kind of modular fishery tail water equipment for separating liquid from solid |
| CN111686510A (en) * | 2020-06-22 | 2020-09-22 | 浙江明佳环保科技股份有限公司 | Novel internal circulation sedimentation filter tank for sewage treatment of farm |
| CN111790198A (en) * | 2019-04-08 | 2020-10-20 | Bsh家用电器有限公司 | System, wiping element and method for cleaning a membrane element, in particular of a water-conducting domestic appliance |
| CN112715467A (en) * | 2020-12-28 | 2021-04-30 | 陈丽清 | Aquaculture is with surface of water debris fishing equipment |
| CN113058306A (en) * | 2021-03-23 | 2021-07-02 | 重庆医药高等专科学校 | Traditional chinese medicine liquid medicine filter equipment |
| CN113455433A (en) * | 2021-08-03 | 2021-10-01 | 浙江省海洋水产研究所 | Crab biology measuring device |
| WO2022052356A1 (en) * | 2020-09-11 | 2022-03-17 | 山东理工职业学院 | Hepa filter applied to industrial circulating water treatment |
| CN114377472A (en) * | 2022-01-13 | 2022-04-22 | 海梦城文化科技股份有限公司 | Linkage mechanism for filtering aquarium and aquarium filter device |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102657968A (en) * | 2012-05-14 | 2012-09-12 | 广东海洋大学 | Arc screen filtering equipment capable of being automatically cleaned |
| CN102921209A (en) * | 2012-11-08 | 2013-02-13 | 大连橡胶塑料机械股份有限公司 | Water-powder filter device of particle cooling water system |
| CN103083957A (en) * | 2013-01-14 | 2013-05-08 | 哈尔滨恒通排水设备制造股份有限公司 | Swing type solid and liquid separation device |
| CN103083957B (en) * | 2013-01-14 | 2015-07-15 | 哈尔滨恒通排水设备制造股份有限公司 | Swing type solid and liquid separation device |
| CN103691671A (en) * | 2013-12-17 | 2014-04-02 | 大连海洋大学 | Automatic cleaning device of arc sieve |
| CN103861359A (en) * | 2014-04-03 | 2014-06-18 | 金键栋 | Liquid supplying device with layered-structure sealing bar and buffer-type spacing pipeline section |
| CN103861359B (en) * | 2014-04-03 | 2015-09-09 | 江阴圆方机械制造有限公司 | The liquid with hierarchy sealing strip and buffer-type position-limiting tube section provides device |
| CN103961921A (en) * | 2014-05-13 | 2014-08-06 | 泰顺派友科技服务有限公司 | Robot device for automatically flushing conical sieve of recirculating aquaculture system |
| CN103961921B (en) * | 2014-05-13 | 2015-12-02 | 泰顺派友科技服务有限公司 | Circulating water culture system conical screen auto-flushing machine people device |
| CN105251259A (en) * | 2015-10-27 | 2016-01-20 | 成都绿迪科技有限公司 | Sewage filtering device |
| CN107184070A (en) * | 2016-03-15 | 2017-09-22 | 金采产品有限公司 | juice extraction device |
| CN106857378A (en) * | 2016-12-30 | 2017-06-20 | 浙江海洋大学 | Cultivation shrimp ponds dirt collection blowdown apparatus |
| CN107050950A (en) * | 2017-01-23 | 2017-08-18 | 浙江腾荣环保科技有限公司 | A kind of filter with impeller |
| CN107821305A (en) * | 2017-10-11 | 2018-03-23 | 佛山汇众森泰科技有限公司 | A kind of novel domestic fish jar cleaning plant |
| CN111790198A (en) * | 2019-04-08 | 2020-10-20 | Bsh家用电器有限公司 | System, wiping element and method for cleaning a membrane element, in particular of a water-conducting domestic appliance |
| CN111790198B (en) * | 2019-04-08 | 2023-11-07 | Bsh家用电器有限公司 | System, wiping element and method for cleaning a membrane element, in particular of a water-conducting household appliance |
| CN110127784A (en) * | 2019-06-05 | 2019-08-16 | 贵州省水产研究所 | A kind of modular fishery tail water equipment for separating liquid from solid |
| CN110127784B (en) * | 2019-06-05 | 2022-03-25 | 贵州省水产研究所 | Modularized tail water solid-liquid separation device for fishery |
| CN111686510A (en) * | 2020-06-22 | 2020-09-22 | 浙江明佳环保科技股份有限公司 | Novel internal circulation sedimentation filter tank for sewage treatment of farm |
| WO2022052356A1 (en) * | 2020-09-11 | 2022-03-17 | 山东理工职业学院 | Hepa filter applied to industrial circulating water treatment |
| CN112715467A (en) * | 2020-12-28 | 2021-04-30 | 陈丽清 | Aquaculture is with surface of water debris fishing equipment |
| CN113058306A (en) * | 2021-03-23 | 2021-07-02 | 重庆医药高等专科学校 | Traditional chinese medicine liquid medicine filter equipment |
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Application publication date: 20110427 |