CN105480733A - Dry powder reagent feeder for preparing flocculating agent for lead zinc ore waste water treatment - Google Patents
Dry powder reagent feeder for preparing flocculating agent for lead zinc ore waste water treatment Download PDFInfo
- Publication number
- CN105480733A CN105480733A CN201610015225.3A CN201610015225A CN105480733A CN 105480733 A CN105480733 A CN 105480733A CN 201610015225 A CN201610015225 A CN 201610015225A CN 105480733 A CN105480733 A CN 105480733A
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- Prior art keywords
- conical tube
- dry powder
- chest
- medicine
- conical pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
- B65D88/28—Construction or shape of discharge section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses a dry powder reagent feeder for preparing a flocculating agent for lead zinc ore waste water treatment. The dry powder reagent feeder comprises a funnel type reagent feeding box, a quantitative feeding device arranged below the reagent feeding box, and a rotation driving device of the quantitative feeding device. A slit opening is horizontally formed in the bottom of the reagent feeding box. The quantitative feeding device is a conical pipe which is arranged below the slit opening with the cone axis inclining by 45 degrees, the taper angle of the conical pipe is 90 degrees, and the conical pipe is erected through an upper bearing and a lower bearing in a supporting manner. One generatrix of the conical pipe is horizontally arranged, and the inner wall of the part, corresponding to the generatrix, of the conical pipe is closely attached to the slit opening. A plurality of arc grooves are formed in the inner wall of the conical pipe in a central symmetry manner, and a small end opening of the conical pipe is a dry powder discharging port. The concave direction of the arcs of the arc grooves is consistent with the rotating direction of the conical pipe. A heating block is arranged below the conical pipe. A vibration bar is arranged in a box body, close to the bottom, of the reagent feeding box. Sealing devices are arranged on the reagent feeding box and the conical pipe. The feeding amount is more stable and accurate, moisture resistance is good, blockage is not likely to happen, and equipment is more durable.
Description
Technical field
The invention belongs to technical field of sewage, relate to the sewage disposal technology of ore dressing industry, particularly a kind of dry powder administration machine preparing Pb-Zn deposits flocculant for sewage treatment.
Background technology
The sewage treatment process of mineral processing production has multiple, wherein adopt efficient neutral flocculant to purify waste water to be one of ore dressing sewage purifying treatment process method emerging in recent years, this process needs in sewage, to add flocculant by setting value exactly in sewage disposal process as far as possible, flocculant then will first be prepared with dry powder and clear water in proportion as far as possible exactly, dry composition chemicals dosing plant comparatively conventional at present adopts spiral dry powder chemicals feeder exactly, utilizes the rotation of the constant speed of spiral evenly to be provided by the medicinal powder in medicament storehouse and is formulated as flocculant with clear water.
The dry powder drug administration device of the preparation Pb-Zn deposits flocculant for sewage treatment of prior art, its structure sum up be exactly comprise funneling to medicine-chest, the rotating driving device being located at metering device below to medicine-chest hopper outlet, metering device; Its metering device is exactly the metering device of conveyor screw formula.
Adopt the dry powder drug administration device of the preparation Pb-Zn deposits flocculant for sewage treatment of such technology certainly can use, but have the following disadvantages:
First, medicinal powder in efficient neutral flocculant has drawn from natural minerals and shellfish etc. usually, the hardness of this kind of material is larger, very large to the abrasion of spiral in powder carry process, under the high pressure that chemicals feeder spiral squeezing type confined space is formed, this abrasive action is particularly evident, and the spiral after abrasion everywhere size is easy to after changing cause the fluctuation of chemical feeding quantity to change, and dry powder even can be caused to provide when spiral abrasion is serious.
Secondly, this chemicals dosing plant is all the top being arranged at cesspool nearby usually, the high humidity of working environment, and efficient neutral flocculant powder as easy as rolling off a log caking in a humid environment, not only can cause the inefficacy of medicament after caking, and can administration channel be blocked, cause dosage offset setting value, will locking spiral when blocking serious, cause drive failure.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides that a kind of feeding coal is more stable more precisely, moisture resistance well not easily blocks, structure optimization abrasion skinny device is more durable, be convenient to safeguard, result of use more preferably prepares the dry powder administration machine of Pb-Zn deposits flocculant for sewage treatment.
The present invention for the technical scheme reaching above-mentioned technical purpose and adopt is: the dry powder administration machine of preparation Pb-Zn deposits flocculant for sewage treatment, comprises funneling to medicine-chest, the rotating driving device being located at metering device below to medicine-chest hopper outlet, metering device; To the hopper outlet of medicine-chest be give medicine-chest bottom level be provided with rectangular slits mouth; Described metering device is an axis of cone inclination 45 degree of conical tubes be arranged on below slit mouth, and the cone angle of conical tube is 90 degree, and the large and small mouth end of conical tube is respectively by the head bearing and the lower bearing supporting erection that are inclination 45 degree setting; A wherein bus of conical tube is horizontally disposed, is close to slit mouth arranges with the internal face of the conical tube of this bus corresponding position; The internal face of conical tube is centrosymmetric and is provided with multiple tracks arc groove, the length of arc groove is greater than the length of slit mouth, and wherein one end of arc groove and the portlet of conical tube are along flushing, and the portlet of conical tube is dry powder discharging opening; The camber line of arc groove recessed to consistent with the hand of rotation of conical tube; The below at the horizontal bus place of described conical tube is provided with heat block; Described leaning in the casing of bottom to medicine-chest is provided with shock club; Sealing arrangement is equipped with to the big opening end on medicine-chest and conical tube.
The groove width of close conical tube osculum one end of described arc groove is greater than the groove width near conical tube great Kou one end, and between two ends, groove width is everywhere steplessly increase progressively gradual change along the change from great Kou one end to the direction of osculum one end on conical tube.
The end face of the end face of close conical tube great Kou one end of described arc groove and close conical tube great Kou one end of slit mouth.
Described sealing arrangement is that the funneling upper end entrance to medicine-chest is provided with packing seal, and head bearing is connected with conical tube big opening end is closely sealed by oil sealing.
The rotating driving device of described metering device is that motor via reducer is in transmission connection by bevel gear and conical tube.
The invention has the beneficial effects as follows: owing to being that medicine-chest bottom level is being provided with rectangular slits mouth to the hopper outlet of medicine-chest; Described metering device is an axis of cone inclination 45 degree of conical tubes be arranged on below slit mouth, and the cone angle of conical tube is 90 degree, and the large and small mouth end of conical tube is respectively by the head bearing and the lower bearing supporting erection that are inclination 45 degree setting; A wherein bus of conical tube is horizontally disposed, is close to slit mouth arranges with the internal face of the conical tube of this bus corresponding position; The internal face of conical tube is centrosymmetric and is provided with multiple tracks arc groove, the length of arc groove is greater than the length of slit mouth, and wherein one end of arc groove and the portlet of conical tube are along flushing, and the portlet of conical tube is dry powder discharging opening; The camber line of arc groove recessed to consistent with the hand of rotation of conical tube; The below at the horizontal bus place of described conical tube is provided with heat block; Described leaning in the casing of bottom to medicine-chest is provided with shock club; Sealing arrangement is equipped with to the big opening end on medicine-chest and conical tube.
A, owing to being that medicine-chest bottom level is being provided with rectangular slits mouth to the hopper outlet of medicine-chest; Described metering device is an axis of cone inclination 45 degree of conical tubes be arranged on below slit mouth, and a wherein bus of conical tube is horizontally disposed, is close to slit mouth arranges with the internal face of the conical tube of this bus corresponding position; The internal face of conical tube is centrosymmetric and is provided with multiple tracks arc groove, the length of arc groove is greater than the length of slit mouth, and wherein one end of arc groove and the portlet of conical tube are along flushing, and the portlet of conical tube is dry powder discharging opening; The arc groove of rotating cone inside pipe wall and the area of contact of dry powder reduce, and rotate a circle just contact once, owing to squeezing formula structure unlike the brute force of spiral chemicals feeder, rotational circle Taper Pipe dry powder in rotary course does not almost revolve rotating cone inside pipe wall and adds squeese pressure, therefore rotating cone inwall is worn hardly, therefore structure optimization abrasion skinny device more durable, be convenient to safeguard.
B, due to the volume of per pass arc groove be definite value.As long as the rotative speed therefore controlling conical tube just can guarantee the accuracy of feeding coal.
C, owing to being equipped with sealing arrangement to the big opening end on medicine-chest and conical tube, the below at the horizontal bus place of conical tube is provided with heat block.Therefore can ensure that moisture resistance well not easily blocks.
D, camber line recessed to consistent with the hand of rotation of conical tube due to arc groove, and the groove width of close conical tube osculum one end of arc groove is greater than the groove width near conical tube great Kou one end, between two ends, groove width is everywhere steplessly increase progressively gradual change along the change from great Kou one end to the direction of osculum one end on conical tube.Therefore, when conical tube rotates, pour out along dry powder discharging opening when the bottom surface at slit mouth place rotates to the vertical bus position of conical tube after quantitatively being scraped by each arc groove as scraper plate and filling up again.Add to medicine-chest by the outside wall surface of bottom is provided with shock club.Feeding coal is more stable precisely, not easily to be blocked.
In sum, the present invention has the advantage that feeding coal is more stable more precisely, moisture resistance well not easily blocks, structure optimization abrasion skinny device is more durable, be convenient to maintenance, and result of use is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.Wherein:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the schematic diagram of another line of vision of the present invention;
Fig. 3 is the schematic diagram of arc groove part in the present invention.
Marker number in accompanying drawing is described as follows: to medicine-chest 1, slit mouth 2, conical tube 3, arc groove 4, head bearing 5, lower bearing 6, bevel gear 7, reductor 8, motor 9, dry powder discharging opening 10, heat block 11, shock club 12
Detailed description of the invention
Embodiments of the invention, as shown in Figure 1, Figure 2, Figure 3 shows, the dry powder administration machine of preparation Pb-Zn deposits flocculant for sewage treatment, comprises funneling to medicine-chest 1, the rotating driving device being located at metering device below to medicine-chest 1 hopper outlet, metering device; To the hopper outlet of medicine-chest 1 be give medicine-chest 1 bottom level be provided with rectangular slits mouth 2; Described metering device is an axis of cone inclination 45 degree of conical tubes 3 be arranged on below slit mouth 2, and the cone angle of conical tube 3 is 90 degree, and the large and small mouth end of conical tube 3 supports erection respectively by the head bearing 5 and lower bearing 6 being inclination 45 degree setting; A wherein bus of conical tube 3 is horizontally disposed, is close to slit mouth 2 arranges with the internal face of the conical tube 3 of this bus corresponding position; The internal face of conical tube 3 is centrosymmetric and is provided with multiple tracks arc groove 4, the length of arc groove 4 is greater than the length of slit mouth 2, and wherein one end of arc groove 4 and the portlet of conical tube 3 are along flushing, and the portlet of conical tube 3 is dry powder discharging opening 10; The camber line of arc groove 4 recessed to consistent with the hand of rotation of conical tube 3; The below at the horizontal bus place of described conical tube 3 is provided with heat block 11; Described gives medicine-chest 1 by being provided with shock club 12 in the casing of bottom; Sealing arrangement is equipped with to the big opening end on medicine-chest 1 and conical tube 3.
The groove width of close conical tube 3 osculum one end of described arc groove 4 is greater than the groove width near conical tube 3 great Kou one end, and between two ends, groove width is everywhere steplessly increase progressively gradual change along the change from great Kou one end to the direction of osculum one end on conical tube 3.
The end face of the end face of close conical tube 3 great Kou one end of described arc groove 4 and close conical tube 3 great Kou one end of slit mouth 2.
Described sealing arrangement is that the funneling upper end entrance to medicine-chest 1 is provided with packing seal, and head bearing 5 is connected with conical tube 3 big opening end is closely sealed by oil sealing.
The rotating driving device of described metering device is that motor 9 is in transmission connection by bevel gear 7 and conical tube 3 by reductor 8.
Principle of work of the present invention is: be set to funnel-form to medicine-chest 1 bottom, hopper outlet is rectangular slit mouth 2, packing seal is housed to prevent powder from moisture in case to the entrance of medicine-chest 1 upper end, wall should be designed to medicine-chest 1 entirety and be equipped with the smooth ramp being enough to dry powder is freely glided, slit mouth 2 is tangent at the horizontal bus place wherein of conical tube 3 with conical tube 3 internal face, conical tube 3 inwall is milled with the multiple tracks arc groove 4 of Central Symmetry distribution, the camber line of arc groove 4 recessed to consistent with the hand of rotation of conical tube 3 and to enter medicine place narrow, drug place is wide, be more conducive to the smooth and easy continuous propelling movement of dry powder like this.Conical tube 3 supports rotation by head bearing 5, lower bearing 6; Head bearing 5 limit is provided with oil sealing, and one for keeping lubrication; Two, for separating lubricating oil and dry powder, do not make lubricant pollution dry powder; Three for isolating the drying of moisture content maintenance dry powder.Conical tube 3 tip is dry powder discharging opening 10.The parallel beneath of conical tube 3 is provided with heat block 11 in the outer wall place of conical tube 3, by heating conical tube 3, tube wall is heated up and keeps the drying of dry powder.Conical tube 3 adjustable speed under the power system that bevel gear 7, reductor 8, motor 9 and frequency converter form drives rotates.Be provided with shock club 12 in medicine-chest 1, can ensure that dry powder slips down to slit mouth 2 smoothly like this.Dry powder add environmental seal give medicine-chest 1 be stacked into slit mouth 2 place along inclined-plane gravitate again.Cannot the dry powder of natural downslide under the effect of vibrating head 12, continue to slip down to slit mouth 2 place.The inwall of conical tube 3 is close to slit mouth 2 and is rotated.Conical tube 3 stop the rotation action time, dry powder cannot sliding go out.Conical tube 3 under the driving of the power system that bevel gear 7, reductor 8, motor 9 and frequency converter etc. form to set the rotary motion of regulation and control speed time, when each arc groove 4 of conical tube 3 inwall forwards to below slit mouth 2 successively, dry powder will quantitatively fall in arc groove 4.Because arc groove 4 camber line trend is consistent with the hand of rotation of conical tube 3, and narrower by the groove width of the arc groove 4 of slit mouth 2 lower position, drug direction groove width is wider, and the rotary motion of conical tube 3 is easy to dry powder to scrape push outlet to.When conical tube 3 continues to rotate, each arc groove 4 of corresponding position slowly tiltedly can erect successively on conical tube 3 inwall, and gradient slowly increases until vertical, the quantitative powder in corresponding arc groove 4 by under gravity smooth slide to dry powder discharging opening 10 along this arc groove 4 and join specify waste water to add in point.Even if some dry powder is not fall into arc groove 4, along with the rotation of conical tube 3, also will be scraped and enter arc groove 4 and be exported.Make moist when running for preventing chemicals dosing plant, dry powder lumps, and therefore install a heat block 11 in the below of conical tube 3 outer wall, during plant running, heat block 11 generates heat, and heating conical tube 3 wall, makes dry powder keep dry.Device regulates the rotative speed of conical tube 3 by frequency converter, just can reach the effect controlling chemical feeding quantity.
Technology of the present invention, is not only confined to the dry powder administration preparing Pb-Zn deposits flocculant for sewage treatment, obviously also can be applicable to the ration distribution of all kinds of dry powder raw material.
Claims (5)
1. prepare the dry powder administration machine of Pb-Zn deposits flocculant for sewage treatment, comprise funneling to medicine-chest, the rotating driving device being located at metering device below to medicine-chest hopper outlet, metering device; It is characterized in that: to the hopper outlet of medicine-chest be give medicine-chest bottom level be provided with rectangular slits mouth; Described metering device is an axis of cone inclination 45 degree of conical tubes be arranged on below slit mouth, and the cone angle of conical tube is 90 degree, and the large and small mouth end of conical tube is respectively by the head bearing and the lower bearing supporting erection that are inclination 45 degree setting; A wherein bus of conical tube is horizontally disposed, is close to slit mouth arranges with the internal face of the conical tube of this bus corresponding position; The internal face of conical tube is centrosymmetric and is provided with multiple tracks arc groove, the length of arc groove is greater than the length of slit mouth, and wherein one end of arc groove and the portlet of conical tube are along flushing, and the portlet of conical tube is dry powder discharging opening; The camber line of arc groove recessed to consistent with the hand of rotation of conical tube; The below at the horizontal bus place of described conical tube is provided with heat block; Described leaning in the casing of bottom to medicine-chest is provided with shock club; Sealing arrangement is equipped with to the big opening end on medicine-chest and conical tube.
2. the dry powder administration machine of preparation Pb-Zn deposits flocculant for sewage treatment according to claim 1, it is characterized in that: the groove width of close conical tube osculum one end of described arc groove is greater than the groove width near conical tube great Kou one end, between two ends, groove width is everywhere steplessly increase progressively gradual change along the change from great Kou one end to the direction of osculum one end on conical tube.
3. the dry powder administration machine of preparation Pb-Zn deposits flocculant for sewage treatment according to claim 2, is characterized in that: the end face of the end face of close conical tube great Kou one end of described arc groove and close conical tube great Kou one end of slit mouth.
4. according to the dry powder administration machine of the preparation Pb-Zn deposits flocculant for sewage treatment in claims 1 to 3 described in any one, it is characterized in that: described sealing arrangement is that the funneling upper end entrance to medicine-chest is provided with packing seal, and head bearing is connected with conical tube big opening end is closely sealed by oil sealing.
5. the dry powder administration machine of preparation Pb-Zn deposits flocculant for sewage treatment according to claim 4, is characterized in that: the rotating driving device of described metering device is that motor via reducer is in transmission connection by bevel gear and conical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015225.3A CN105480733B (en) | 2016-01-11 | 2016-01-11 | Prepare the dry powder administration machine of Pb-Zn deposits flocculant for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610015225.3A CN105480733B (en) | 2016-01-11 | 2016-01-11 | Prepare the dry powder administration machine of Pb-Zn deposits flocculant for sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105480733A true CN105480733A (en) | 2016-04-13 |
| CN105480733B CN105480733B (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610015225.3A Expired - Fee Related CN105480733B (en) | 2016-01-11 | 2016-01-11 | Prepare the dry powder administration machine of Pb-Zn deposits flocculant for sewage treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN105480733B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921963A (en) * | 2019-12-30 | 2020-03-27 | 杨咪咪 | Coking retrieval and utilization effluent treatment plant |
| CN117842724A (en) * | 2024-03-08 | 2024-04-09 | 山西天润恒德新材料有限公司 | Fly ash feeding device for mineralizer production |
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| DE3120017C2 (en) * | 1980-05-23 | 1991-02-28 | Zanasi Nigris S.P.A., Ozzano Emilia, Bologna, It | |
| JPH07237756A (en) * | 1994-02-25 | 1995-09-12 | Matsuo Sangyo Kk | Constant quantity of powder feeding device |
| CN1152533A (en) * | 1995-09-07 | 1997-06-25 | 三井石油化学工业株式会社 | Powder quantitative feeder |
| CN103999811A (en) * | 2014-05-25 | 2014-08-27 | 杨晓彬 | Timed feeding device for fish tank |
| CN204078102U (en) * | 2014-09-15 | 2015-01-07 | 淄博联技化工有限公司 | Semi-automatic finished wrapping machine |
| CN104369880A (en) * | 2014-11-26 | 2015-02-25 | 天津工业大学 | High-speed feeding and packing device for particle material packaging machine and control method thereof |
| CN204426317U (en) * | 2015-02-10 | 2015-07-01 | 长兴丰盛畜禽食品有限公司 | A kind of livestock and poultry quantitative feeding device |
| CN205312673U (en) * | 2016-01-11 | 2016-06-15 | 福建金东矿业股份有限公司 | Prepare plumbous zinc ore dry powder of flocculating agent device of dosing for sewage treatment |
-
2016
- 2016-01-11 CN CN201610015225.3A patent/CN105480733B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3120017C2 (en) * | 1980-05-23 | 1991-02-28 | Zanasi Nigris S.P.A., Ozzano Emilia, Bologna, It | |
| JPH07237756A (en) * | 1994-02-25 | 1995-09-12 | Matsuo Sangyo Kk | Constant quantity of powder feeding device |
| CN1152533A (en) * | 1995-09-07 | 1997-06-25 | 三井石油化学工业株式会社 | Powder quantitative feeder |
| CN103999811A (en) * | 2014-05-25 | 2014-08-27 | 杨晓彬 | Timed feeding device for fish tank |
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| CN104369880A (en) * | 2014-11-26 | 2015-02-25 | 天津工业大学 | High-speed feeding and packing device for particle material packaging machine and control method thereof |
| CN204426317U (en) * | 2015-02-10 | 2015-07-01 | 长兴丰盛畜禽食品有限公司 | A kind of livestock and poultry quantitative feeding device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921963A (en) * | 2019-12-30 | 2020-03-27 | 杨咪咪 | Coking retrieval and utilization effluent treatment plant |
| CN117842724A (en) * | 2024-03-08 | 2024-04-09 | 山西天润恒德新材料有限公司 | Fly ash feeding device for mineralizer production |
| CN117842724B (en) * | 2024-03-08 | 2024-05-14 | 山西天润恒德新材料有限公司 | Fly ash feeding device for mineralizer production |
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| Publication number | Publication date |
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| CN105480733B (en) | 2017-09-22 |
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Granted publication date: 20170922 Termination date: 20190111 |