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CN206050698U - Prevent the combination type chute of materials from bonding - Google Patents

Prevent the combination type chute of materials from bonding Download PDF

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Publication number
CN206050698U
CN206050698U CN201620936876.1U CN201620936876U CN206050698U CN 206050698 U CN206050698 U CN 206050698U CN 201620936876 U CN201620936876 U CN 201620936876U CN 206050698 U CN206050698 U CN 206050698U
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China
Prior art keywords
chute
vertical channel
combination type
bonding
type chute
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CN201620936876.1U
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Chinese (zh)
Inventor
孙凯
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SHANDONG SANEN ELECTRONICS CO Ltd
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SHANDONG SANEN ELECTRONICS CO Ltd
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Priority to CN201620936876.1U priority Critical patent/CN206050698U/en
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Abstract

This utility model provides a kind of combination type chute for preventing materials from bonding, and which includes multiple chute bodies, is sequentially connected between multiple chute bodies, and each described chute body includes:Hollow housing, its ramp way for including vertical channel and being connected with the vertical channel, the ramp way are located at the lower section of the vertical channel, and the upper end of the vertical channel is provided with charging aperture, and the lower end of the ramp way is provided with discharging opening;Jet mechanism, which is located at the side of the vertical channel of the hollow housing, and the jet mechanism is provided with for spraying the jet pipe of gas, and the jet pipe is connected with the vertical channel.This utility model passes through the setting of vertical channel and jet mechanism, reduces the adhesion of material and chute, and to prevent sizing putty, simple structure, easy accessibility are applied widely.

Description

Prevent the combination type chute of materials from bonding
Technical field
This utility model is related to a kind of material chute, more particularly to a kind of combination type chute for preventing materials from bonding.
Background technology
In existing industrial production line, there are many chutes for Flow of Goods and Materials, due to wanting for safe and environment-friendly or technique Ask, the chute of the most of straight tube-like for being all sealing of these chutes, as shown in Figure 1A, Figure 1B and Fig. 1 C, those chutes are most of It is square made by metal material or rectangular shell 1 constitutes a tilted tube so that material is slid along which.
Fig. 1 C are the structural representations of prior art, it illustrates the production technology situation of prior art.Feeder position In the top of chute, and covered by the sealing of dust cover 3, material 4 is conveyed in place by feeder, makes material 4 along Flow of Goods and Materials Direction 2 is slipped to follow-up technological process via chute;, during landing, when chute, meeting is along its landing side for material 4 To the inner surface of normal erosion chute, the self-cleaning effect of chute is played, but, most material is in chute along material stream During dynamic direction 2 slides, due to the difference of the water content, fineness and chemical composition of material, some materials from bonding of federation On the inner surface of chute, the ramped bottom surface of chute is particularly bonded in, and material once produces bonding, be difficult to follow-up Material is washed away, accumulation over time, and the material of bonding is on the increase, and chute can be caused to be plugged and can not use, and It is also an extremely complex job to clear up these sealing chutes blocked, and is wasted time and energy.
In view of the problem that above-mentioned prior art is present, the present inventor combines the design for many years of related manufacture field and use Experience, is aided with too strong Professional knowledge, is optimized design to the structure of existing material chute, there is provided one kind prevents material from gluing The combination type chute of knot, overcomes drawbacks described above.
Utility model content
The purpose of this utility model is to provide a kind of combination type chute for preventing materials from bonding, and which passes through vertical channel and spray The setting of mechanism of qi structure, reduces the adhesion of material and chute, to prevent sizing putty, simple structure, easy accessibility, the scope of application Extensively.
Above-mentioned purpose of the present utility model can be realized using following technical proposal:
This utility model provides a kind of combination type chute for preventing materials from bonding, wherein, the group for preventing materials from bonding Box-like chute includes multiple chute bodies, is sequentially connected between multiple chute bodies, and each described chute body includes:Hollow shell Body, its ramp way for including vertical channel and being connected with the vertical channel, the ramp way are located at the vertical channel Lower section, the upper end of the vertical channel is provided with charging aperture, and the lower end of the ramp way is provided with discharging opening;Jet mechanism, its Positioned at the side of the vertical channel of the hollow housing, the jet mechanism is provided with for spraying the jet pipe of gas, described Jet pipe is connected with the vertical channel.
In a preferred embodiment, the jet pipe includes a main pipe road and multiple sub-pipes, the sub-pipes One end be connected with the main pipe road, the other end of the sub-pipes is connected with the vertical channel.
In a preferred embodiment, multiple sub-pipes are parallel to each other and are vertically arranged with the main pipe road respectively.
In a preferred embodiment, multiple sub-pipes are arranged in the horizontal direction at equal intervals.
In a preferred embodiment, multiple sub-pipes are vertically arranged at equal intervals.
In a preferred embodiment, the jet mechanism also includes regulating valve, and the regulating valve is located at the air jet pipe On road.
In a preferred embodiment, the combination type chute for preventing materials from bonding also includes controller, described in each The regulating valve of chute body is electrically connected with the controller.
In a preferred embodiment, the bottom of the ramp way is provided with pick up, the pick up and the control Device is electrically connected.
In a preferred embodiment, the height of the vertical channel and the length ratio of the ramp way are 3:100~ 10:100.
In a preferred embodiment, the temperature of the gas that the jet mechanism sprays is 180 DEG C.
The characteristics of this utility model prevents the combination type chute of materials from bonding and advantage are:
1st, this utility model passes through the setting of vertical channel and ramp way, material is freely fallen along material falling direction And enter in vertical channel, to avoid contacting with chute body, and material is Jing after vertical channel falls into ramp way, can impact inclination Material on passage, it is to avoid materials from bonding occurs on ramp way.
2nd, this utility model makes from the charging aperture of chute body what is entered by arranging jet mechanism in the side of vertical channel Material along material falling direction fall while gas can be made just to blow to the lower surface of material, material can be pushed to away from slipping The direction of cell body base plate, adhesion when material can be contacted again again with the base plate of the ramp way of chute body reduce, moreover it is possible to The moisture content of the powder material and surface of material of material bottom is blown away by gas, it is to avoid materials from bonding.
3rd, this utility model is by being easiest to the outside of the position of binding material on the base plate of the ramp way of chute body Pick up is set, to monitor the noise of material impact base plate, and then opens controller control and regulation valve according to the frequency of the noise Open or close, to use minimum gas to realize effect of the preventing and treating materials from bonding in the ramp way base plate of chute body.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model embodiment, below will be to needed for embodiment description Accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings Obtain other accompanying drawings.
Structural representations one of the Figure 1A for prior art;
Structural representations two of the Figure 1B for prior art;
Structural representations three of Fig. 1 C for prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of chute body of the present utility model;
Fig. 4 is the overlooking the structure diagram of jet pipe of the present utility model.
Drawing reference numeral explanation:
1 shell, 2 Flow of Goods and Materials directions, 3 dust covers, 4 materials, 5 chute bodies, 6 hollow housings, 7 vertical channels, 8 inclinations are logical Road, 9 charging apertures, 10 discharging openings, 11 material falling directions, 12 jet pipes, 13 main pipe roads, 14 sub-pipes, 15 aerating pipelines, 16 Compressed gas pipeline, 17 gases, 18 regulating valves, 19 controllers, 20 pick ups, 21 flanges, 22 compressed gas, H height, W width, L length.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of this utility model protection.
As shown in Figures 2 to 4, this utility model provides a kind of combination type chute for preventing materials from bonding, wherein, it is described anti- Only the combination type chute of materials from bonding includes multiple chute bodies 5, is sequentially connected between multiple chute bodies 5, slips described in each Cell body 5 includes:Hollow housing 6, its ramp way 8 for including vertical channel 7 and being connected with the vertical channel 7, the inclination Passage 8 is located at the lower section of the vertical channel 7, and the upper end of the vertical channel 7 is provided with charging aperture 9, under the ramp way 8 End is provided with discharging opening 10;Jet mechanism, which is located at the side of the vertical channel 7 of the hollow housing 6, and the jet mechanism is provided with For spraying the jet pipe 12 of gas 17, the jet pipe 12 is connected with the vertical channel 7.
Specifically, the hollow housing 6 of the chute body 5 is probably stepped, and the vertical channel 7 of hollow housing 6 is in rectangular The bodily form and vertically (namely short transverse of vertical channel 7) insertion, so that 4 edge of material come from feed mechanism conveying Material falling direction 11 vertically downward is entered in vertical channel 7, enables to enter the material 4 of chute body 5 in certainly from charging aperture 9 Fallen by falling bodies state, to wash away the granular material of the base plate of the ramp way 8 for being bonded at chute body 5, reduce material 4 and chute The bonding of the base plate of the ramp way 8 of body 5,8 slant setting of ramp way of hollow housing 6 are simultaneously connected with the lower end of vertical channel 7 Logical, ramp way 8 is probably in cuboid and along inclined direction (namely length direction of ramp way 8) insertion, wherein, vertically The width W of passage 7 is equal in magnitude with the width of ramp way 8, and its concrete numerical value can be arranged according to needs of production, described The height H of vertical channel 7 is 3 with the length L ratio of the ramp way 8:100~10:100, not only beneficial to material conveying but also make Material is not easy bonding;This utility model prevents from passing through between the chute body 5 adjacent two-by-two of the combination type chute of materials from bonding Flange 21 is connected, and the number of chute body 5 needs to arrange according to production, and this is not restricted;In addition, jet mechanism can be arranged on The side of vertical channel 7, it is also possible to be symmetrically disposed in the both sides of vertical channel 7.
Further, as shown in Figure 3 and Figure 4, the jet pipe 12 includes a main pipe road 13 and multiple sub-pipes 14, One end of the sub-pipes 14 is connected with the main pipe road 13, and the other end of the sub-pipes 14 is connected with the vertical channel 7, Preferably, multiple sub-pipes 14 are parallel to each other and are vertically arranged with the main pipe road 13 respectively, and specifically, jet pipe 12 Also include compressed gas pipeline 16 and aerating pipeline 15, compressed gas pipeline 16 is connected with compressed gas source, aerating pipeline 15 One end is connected with compressed gas pipeline 16, and the other end of aerating pipeline 15 is connected with the main pipe road 13, so that compressed gas 22 Compressed gas pipeline 16 enters aerating pipeline 15, and then passes sequentially through main pipe road 13 and multiple sub-pipes 14 to vertical channel Gas 17 (compressed gas therein 22 progressively become the gas 17 with certain speed in jet pipe 12) is sprayed in 7, is made From the material 4 that the charging aperture 9 of chute body 5 is entered along material falling direction 11 fall while gas 17 can be made just to blow to material 4 lower surface, the direction that can push to away from 5 base plate of chute body by material 4, can be such that material 4 is connect with 5 base plate of chute body again again Adhesion when tactile is reduced, moreover it is possible to the moisture content on 4 surface of powder material and material of 4 bottom of material is blown away by gas 17, it is to avoid Material 4 bonds, wherein, the diameter with diameter greater than sub-pipes 14 in main pipe road 13, to ensure that main pipe road 13 can respectively to many height Pipeline 14 pours enough gas, it is ensured that gas is supplied.
As shown in Figure 3 and Figure 4, in one embodiment, multiple sub-pipes 14 are arranged in the horizontal direction at equal intervals, i.e., many The plane that individual sub-pipes 14 are located is parallel with the cross section of vertical channel 7 (i.e. the horizontal cross-section of vertical channel 7), makes under material The horizontally-arranged gas 17 that the material 4 that direction 11 falls that falls can be blown by jet mechanism all blows afloat, and makes material 4 away from chute body The base plate of 5 ramp way 8, prevents materials from bonding;In another embodiment, between multiple sub-pipes 14 are vertically waited Every setting, i.e., the plane that multiple sub-pipes 14 are located is flat with the longitudinal section (i.e. the vertical section of vertical channel 7) of vertical channel 7 OK, enable the material 4 fallen along material falling direction 11 complete along the vertical setting of types gas 17 that its falling direction is sprayed by jet mechanism Portion is blown afloat, and makes material 4 away from the base plate of the ramp way 8 of chute body 5, prevents materials from bonding.
Further, as shown in Figures 2 and 3, the jet mechanism also includes regulating valve 18, and the regulating valve 18 is located at institute State on jet pipe 12, specifically, regulating valve 18 is arranged on the compressed gas pipeline 16 of jet pipe 12, with by controlling to adjust Saving the opening and closing of valve 18 and controlling whether compressed gas 22 to be conveyed to jet pipe 12, the size of the opening of certain regulating valve 18 also may be used With limit convey in jet pipe 12 compressed gas 22 number, make compressed gas 22 successively compressed gas pipeline 16, Aerating pipeline 15, main pipe road 13 and multiple sub-pipes 14 are sprayed in vertical channel 7.
Further, as shown in figure 3, the combination type chute for preventing materials from bonding also includes controller 19, each institute The regulating valve 18 for stating chute body 5 is electrically connected with the controller 19, can control each regulation respectively by controller 19 The unlatching of valve 18, the size closed and open, it is of course also possible to make the regulating valve 18 of each chute body 5 control with one respectively Device 19 is electrically connected, and this is not restricted.
Further, as shown in figure 3, the bottom of the ramp way 8 is provided with pick up 20, the pick up 20 with it is described Controller 19 is electrically connected, and specifically, the outside of the base plate of the ramp way 8 of each chute body 5 arranges a pick up 20, and picks up The position that sound device 20 is arranged is corresponding with the position that binding material is easiest on the base plate of chute body 5, i.e., pick up 20 is arranged on Material starts the outside of the base plate position of the ramp way 8 for contacting chute body 5, and general base plate is for metallic plate or ceramic wafer or by which Wearing plate made by his material;Under normal circumstances namely chute body 5 ramp way 8 base plate on there is no materials from bonding During situation, material 4 Jing after vertical channel 7 washes away the base plate of the ramp way 8 of chute body 5, can produce the noise of natural frequency, Now controller 19 receives the noise of the stable natural frequency of pick up 20, can control to adjust valve 18 in closed mode, and need not Gas 17 is conveyed in jet pipe 12, and when material 4 occurs bonding in the base plate of the ramp way 8 of chute body 5, material 4 The base plate of ramp way 8 cannot be just washed into, then distinctive noise will disappear or diminish, pick up 20 is by the signal for measuring Controller 19 is transferred to, controller 19 i.e. can 18 dozens, automatic control and adjustment valve after the standard value contrast by the signal with setting Open, gas 17 is sprayed into the vertical channel 7 to chute body 5, automatically controlled by this and can use minimum gas, reached anti- Purpose of the materials from bonding in chute body 5 is controlled, wherein controller 19 can also be continually changing regulating valve 18 according to the change of noise Aperture, to control to spray into the amount of gas 17.
Generally, jet mechanism spray gas 17 be gas at normal temperature, such as normal temperature air, certainly, gas 17 can also be other media, and this is not restricted, in the case of material humidity, the gas 17 that spray can jet plane structure It is the high-temperature gas higher than the temperature of normal temperature air, preferably to prevent the bonding of moist material, further, the jet plane The temperature of the gas 17 that structure sprays is 180 DEG C, with while the tiny powdered material of 4 bottom of material is blown afloat, by 4 surface of material Moisture content also dry up because material 4 be bonded to the one of the main reasons of the base plate of chute body 5 be exactly exist in material 4 it is moist The tiny powdered material of 4 bottom of material, by the gas 17 that heat is blown into the bottom of material 4, was both blown afloat, was removed by tiny powdered material Moist material 4 can be dried, be made 4 bottom of material only exist dry granular material, more preferably by the tiny powdered material of bottom again The material 4 that avoids bond, moreover it is possible to fine-powdered on 5 base plate of chute body is bonded in before washing away by dry granular material Material;Preferably, gas 17 can be 180 DEG C of hot-air, certainly, the temperature of the gas 17 that jet mechanism sprays also dependent on The temperature adaptation condition of material, water content etc. and be set as other suitable temperature, as long as not affecting quality of material in temperature Under conditions of, it is better protected from materials from bonding and makes the drying materials with humidity, this is not restricted.
This utility model prevents the combination type chute of materials from bonding operationally, and regulating valve 18 is closed first, The charging aperture 9 of the chute body 5 of 4 Jing this utility model the top of material of feeder conveying enters vertical channel 7, is vertically leading to Freely fall on ramp way 8 along material falling direction 11 inside road 7, material 4 is in ramp way 8 along Flow of Goods and Materials direction 2 Slide and into the charging aperture 9 of following chute body 5, material 4 is so repeated up to from the discharging opening 10 of the chute body 5 of bottom Discharge, wherein when material 4 enters ramp way 8 and impacts the base plate of ramp way 8, the material 4 of monitoring is rushed by pick up 20 The transfer voice of base plate is hit to controller 19, the signal for receiving and the signal fusing for setting, such as indistinction are become by controller 19 Change, then regulating valve 18 need not be operated to open, such as noise signal diminishes or disappears, then the control and regulation of controller 19 valve 18 is opened, and is made 22 adjusted valve 18 of compressed gas enters compressed gas pipeline 16, and Jing aeratings pipeline 15, main pipe road 13 and sub-pipes 14 successively The gas 17 of heat is sprayed in backward vertical channel 7, makes that the fine powder material in material is blown afloat and the moisture content on material is oven-dried, it is to avoid Materials from bonding, at the same positioned at material bottom granular material can impact ramp way 8 base plate on the material that bonds, make thing Material 4 is swept away, and prevents sizing putty, and after material 4 is washed out, the noise signal of the detection of pick up 20 can recover natural frequency, And then close the control and regulation valve 18 of controller 19.
Illustrated with concrete application embodiment of the present utility model below, in the vertical of 350 tons of a hourly output The charging aperture of grinding machine (the raw material preparation technology of cement clinker production line) installs this utility model prevents the combination type of materials from bonding Chute, material therein are limestone and the mixture of clay, and limestone accounts for about 85%, and clay constitutes about 10%, other things Material 5%, as weather is overcast and rainy, in material, moisture increases, the charging aperture of vertical grinder frequently because sizing need to shut down cleaning, most sternly During weight, one class shuts down cleaning 7 times in (8 hours), has had a strong impact on work efficiency, however, preventing material from gluing using this utility model After the combination type chute of knot, 4 Jing vertical channels 7 of material can reduce the adhesion with ramp way 8, and the compression for adding when falling Gas 22 is the high-temperature hot air that temperature is 180 DEG C~190 DEG C, and the hot-air being blown into can dry the material 4 of humidity, reduce thing Material bonding, and by the monitoring of pick up 20, the feedback of the information of materials from bonding is made control to controller 19 by the energy very first time Device 19 controls to adjust valve 18 and sprays into high-temperature gas 17 to vertical channel 7, rapidly and efficiently avoid sizing putty, and continuously run The situation for a sizing and putty occurring again in 28 days, work efficiency have obtained large increase.
The characteristics of this utility model prevents the combination type chute of materials from bonding and advantage are:
1st, this utility model passes through the setting of vertical channel 7 and ramp way 8, make material 4 along material falling direction 11 from By falling and entering in vertical channel 7, to avoid contacting with chute body 5, and 4 Jing vertical channels 7 of material fall into ramp way 8 Afterwards, the material 4 that can be impacted on ramp way 8, it is to avoid materials from bonding occurs on ramp way 8.
2nd, this utility model makes from the charging aperture 9 of chute body 5 to enter by arranging jet mechanism in the side of vertical channel 7 The material 4 for entering along material falling direction 11 fall while gas 17 can be made just to blow to the lower surface of material 4, can be by material 4 push the direction away from 5 base plate of chute body to, when material 4 can be contacted again again with the base plate of the ramp way 8 of chute body 5 Adhesion is reduced, moreover it is possible to the moisture content on 4 surface of powder material and material of 4 bottom of material is blown away by gas 17, it is to avoid material glues Knot.
3rd, this utility model by be easiest on the base plate of the ramp way 8 of chute body 5 binding material position it is outer Side arranges pick up 20, to monitor the noise that material 4 impacts base plate, and then makes controller 19 control to adjust according to the frequency of the noise Section valve 18 is turned on and off, to use minimum gas to realize effect of the preventing and treating materials from bonding in 8 base plate of ramp way of chute body 5 Really.
The schematic specific embodiment of this utility model is the foregoing is only, and is not used to limit model of the present utility model Enclose.Any those skilled in the art, the equivalent variations made on the premise of without departing from principle of the present utility model and design With modification, protection domain of the present utility model all should be belonged to.

Claims (10)

1. a kind of combination type chute for preventing materials from bonding, it is characterised in that the combination type chute bag for preventing materials from bonding Containing multiple chute bodies, it is sequentially connected between multiple chute bodies, each described chute body includes:
Hollow housing, its ramp way for including vertical channel and being connected with the vertical channel, the ramp way are located at institute The lower section of vertical channel is stated, the upper end of the vertical channel is provided with charging aperture, and the lower end of the ramp way is provided with discharging opening;
Jet mechanism, which is located at the side of the vertical channel of the hollow housing, and the jet mechanism is provided with for spraying gas Jet pipe, the jet pipe is connected with the vertical channel.
2. the combination type chute for preventing materials from bonding according to claim 1, it is characterised in that the jet pipe includes One main pipe road and multiple sub-pipes, one end of the sub-pipes are connected with the main pipe road, the other end of the sub-pipes with The vertical channel is connected.
3. the combination type chute for preventing materials from bonding according to claim 2, it is characterised in that multiple sub-pipes phases It is mutually parallel and be vertically arranged with the main pipe road respectively.
4. the combination type chute for preventing materials from bonding according to claim 3, it is characterised in that multiple sub-pipes edges Horizontal direction is arranged at equal intervals.
5. the combination type chute for preventing materials from bonding according to claim 3, it is characterised in that multiple sub-pipes edges Vertical direction is arranged at equal intervals.
6. the combination type chute for preventing materials from bonding according to claim 1, it is characterised in that the jet mechanism also wraps Regulating valve is included, the regulating valve is on the jet pipe.
7. the combination type chute for preventing materials from bonding according to claim 6, it is characterised in that described to prevent materials from bonding Combination type chute also include controller, the regulating valve of each chute body electrically connected with the controller.
8. the combination type chute for preventing materials from bonding according to claim 7, it is characterised in that the bottom of the ramp way Portion is provided with pick up, and the pick up is electrically connected with the controller.
9. the combination type chute for preventing materials from bonding according to claim 1, it is characterised in that the height of the vertical channel Degree is 3 with the length ratio of the ramp way:100~10:100.
10. the combination type chute for preventing materials from bonding according to claim 1, it is characterised in that the jet mechanism spray The temperature of the gas for going out is 180 DEG C.
CN201620936876.1U 2016-08-25 2016-08-25 Prevent the combination type chute of materials from bonding Active CN206050698U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620936876.1U CN206050698U (en) 2016-08-25 2016-08-25 Prevent the combination type chute of materials from bonding

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Application Number Priority Date Filing Date Title
CN201620936876.1U CN206050698U (en) 2016-08-25 2016-08-25 Prevent the combination type chute of materials from bonding

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Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114644229A (en) * 2020-12-18 2022-06-21 国家电投集团黄河上游水电开发有限责任公司 Green anode ball milled powder conveying device and method
CN116237153A (en) * 2023-05-11 2023-06-09 四川南充华景智农农业装备制造有限公司 Multi-dimensional joint sorting system for peppers
CN117509091A (en) * 2024-01-05 2024-02-06 中煤科工集团上海有限公司 Transfer chute and belt conveyor system including it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114644229A (en) * 2020-12-18 2022-06-21 国家电投集团黄河上游水电开发有限责任公司 Green anode ball milled powder conveying device and method
CN116237153A (en) * 2023-05-11 2023-06-09 四川南充华景智农农业装备制造有限公司 Multi-dimensional joint sorting system for peppers
CN116237153B (en) * 2023-05-11 2023-08-15 四川南充华景智农农业装备制造有限公司 Multi-dimensional joint sorting system for peppers
CN117509091A (en) * 2024-01-05 2024-02-06 中煤科工集团上海有限公司 Transfer chute and belt conveyor system including it

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