CN210816644U - Mine dust comprehensive treatment system - Google Patents
Mine dust comprehensive treatment system Download PDFInfo
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- CN210816644U CN210816644U CN201921764126.0U CN201921764126U CN210816644U CN 210816644 U CN210816644 U CN 210816644U CN 201921764126 U CN201921764126 U CN 201921764126U CN 210816644 U CN210816644 U CN 210816644U
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Abstract
The utility model discloses a mine dust comprehensive treatment system, including ore crushing device, screening plant and ore conveying device, the crushing dust collecting point department of ore crushing device corresponds and is covered with crushing dust collecting cover, the belt receiving point department of ore conveying device is provided with receives material dust collecting point, receive material dust collecting point department corresponds and is provided with and receives material dust collecting device, the belt unloading point department of ore conveying device is provided with unloading dust collecting point, unloading dust collecting point department corresponds and is covered with unloading dust collecting cover, be provided with belt cleaning device on the return stroke section of ore conveying device, screening dust collecting point department of screening plant corresponds and is covered with screening dust collecting cover, crushing dust collecting cover, receive material dust collecting device, unloading dust collecting cover and screening dust collecting cover department all are connected to dust collecting system; the dust collection points are reasonably arranged in each process link of the ore production line, and the dust is collected uniformly by the dust collection system, so that the occupied space is small, the cost is low, and the dust collection effect is obviously superior to that of the prior art.
Description
Technical Field
The utility model relates to an environmental protection equipment especially relates to a system for comprehensively administering mine dust.
Background
Ore production lines typically include vibratory feeders, jaw crushers, impact crushers, shakers, and the like. After the jaw crusher or the impact crusher crushes stones, the vibration screen is used for screening, and the stones with smaller particle sizes are conveyed into next equipment through the conveyor belt.
However, various dusts are often emitted in the production process, which can damage the air environment of a workshop, harm the health of personnel, damage machine equipment of the workshop, and pollute the atmospheric environment to cause social public nuisance. In order to solve the problems, a dust remover is arranged in a workshop, but dust is dispersed in the production process, particularly, a plurality of process links are included on an ore production line, the dust raising problem exists in each process link, the dust remover is dispersed and collected by adopting a plurality of dust removers during collection, the occupied space is large, the equipment cost is high, the collection effect is poor, the dust remover is not beneficial to unified collection and recycling, and a plurality of defects still exist, so that the production environment of the whole production line is very bad, so that a mine dust comprehensive treatment system is urgently needed to solve the problems, particularly, when bulk materials are conveyed to the tail part of a belt to be lifted and conveyed upwards through a transmission belt, a large amount of dust can be generated in the dumping process, the environment is greatly polluted, and the health of constructors is influenced; in addition, a large amount of dust is often gathered on the belt of the return section, so that not only are the materials wasted and polluted, but also the potential fault hazard is caused to the belt.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure, reasonable in design, produce some at each technology dust and set up the dust cage and unify and collect the mine dust comprehensive control system who is used for eliminating the ore dust with the dust, arrange rationally, occupation space is little, and is with low costs, and dust collecting effect is good, is favorable to unified collection and recycle.
In order to solve the technical problem, the technical scheme of the utility model is that: mine dust comprehensive treatment system, including ore crushing device and screening plant, ore crushing device with install ore conveyor between the screening plant, ore crushing device's top is provided with broken dust collection point, broken dust collection point department corresponds to be covered with broken dust collection cover, ore conveyor's belt receives material point department to be provided with and receives material dust collection point, it is provided with and receives material dust collector to receive material dust collection point department correspondence, ore conveyor's belt unloading point department is provided with unloading dust collection point, unloading dust collection point department corresponds to be covered with unloading dust collection cover, still be provided with on ore conveyor's the return stroke section with the belt cleaning device that unloading dust collection cover corresponds, screening plant's top is provided with screening dust collection point, screening dust collection point department corresponds to be covered with screening dust collection cover, broken dust collection cover receive material dust collector device, The blanking dust collection cover and the screening dust collection cover are respectively connected to a dust collection system through dust collection pipelines;
the dust collecting and collecting device is characterized in that a dust collecting main cover which covers a belt material receiving point is arranged on the material receiving and collecting device, a material receiving port is formed in the top end of the dust collecting main cover, dust collecting expansion covers are respectively connected to the front side and the rear side of the material receiving port at the top end of the dust collecting main cover, the dust collecting expansion covers are arranged to be of a conical structure with square bottom and circular top, a dust removing port connected with a dust collecting system is formed in the top end of the conical structure, and a dust guide inclined plane for guiding dust to flow to the dust removing port is formed in the conical structure; a wear-resistant material guide plate is arranged in the dust collection main cover corresponding to the material receiving port, the wear-resistant material guide plate is obliquely arranged towards the conveying direction of the belt, and material collecting plates which are transversely arranged are uniformly distributed on the material contact surface of the wear-resistant material guide plate; the bottom end of the dust collection main cover extends downwards to form a sealing flange which is arranged around the belt and used for improving the sealing effect, and the dust collection main cover is also provided with a first retaining curtain which is in contact with materials on the belt;
the belt sweeping device comprises a bin which is positioned at the belt blanking point of the ore conveying device and is used for receiving materials, an air blowing pipe is arranged in the storage bin, the air blowing pipe is transversely arranged below the return belt, one end of the air blowing pipe is closed, the other end of the air blowing pipe is connected with a pulse air blowing device, an air blowing duckbill facing the belt is arranged on the air blowing pipe along the length direction, the air blowing duckbill is provided with a strip-shaped air blowing opening corresponding to the width of the belt along the length direction, the air outlet direction of the strip-shaped air blowing opening is opposite to the movement direction of the belt in the return segment, the blanking dust-collecting cover is positioned above the blanking point of the belt, the top end of the blanking dust-collecting cover is connected with the dust collecting system, the unloading is gathered dust and is covered still to be provided with the second check curtain with material contact on the belt, the lower extreme of unloading dust cover extends to the top of feed bin.
As a preferred technical scheme, the cross section of the material collecting plate is of a stepped structure.
As a preferred technical scheme, the material collecting plate is a vertical plate perpendicular to the wear-resistant material guide plate.
As a preferred technical scheme, the cross section of the material collecting plate is of a circular structure.
As an optimal technical scheme, the volume of the dust collection expansion cover positioned on the front side of the material receiving port is larger than the volume of the dust collection expansion cover positioned on the rear side of the material receiving port.
Preferably, both ends of the air blowing pipe are detachably connected to the ore conveying device through mounting brackets respectively.
According to a preferable technical scheme, the pulse blowing device comprises a compression fan, a pulse valve is correspondingly arranged on the compression fan, and the air blowing pipe is connected to the compression fan through a hose.
Since the technical scheme is used, the beneficial effects of the utility model are that:
the dust collection system has the advantages that the multiple dust collection points are connected with the dust collection system through the orderly arrangement of the dust collection pipelines, so that the occupied space is small, the cost is low, dust can be uniformly collected and recycled, and the problems of large occupied space, high equipment cost and the like caused by the arrangement of multiple dust collectors in a workshop of a factory building in the prior art are solved;
secondly, a plurality of dust generating points are reasonably arranged in each process link, and a dust collecting cover is directly arranged at each dust generating point to collect the dust, so that the dust can be collected in time, the distance between the dust and the dust collecting cover is shortened, the probability of dust diffusing outwards is controlled, the staying time of the dust in a workshop is reduced, and the dust collecting effect is obviously superior to that of the prior art;
the distance between the dust removing opening and the material surface of the belt is increased by increasing the dust collecting space due to the arrangement of the material receiving and dust collecting device, so that the problem that the material is very easy to absorb in the prior art is solved; because the dust collection expansion cover is arranged to be a conical structure with a square bottom and a circular top, a raised dust guide inclined plane for guiding raised dust to flow to the dust removal opening is formed in the conical structure, so that the raised dust can move along the raised dust guide inclined plane after splashing after the material descends and flows out of the dust removal opening, the raised dust is better in discharge effect, the phenomenon of escaping from two sides is not easy to occur, and the problem of poor dust removal effect caused by the existence of dead angles in the dust collection expansion cover in the prior art is solved;
the belt cleaning device cannot damage the belt, and dust generated in the cleaning process and the blanking process is collected after the belt is cleaned, so that the belt cleaning effect is better, and the dust collection effect after cleaning is better;
fifthly, the utility model discloses still have simple structure, reasonable in design, advantage such as with low costs, be favorable to extensively using widely.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a material receiving and dust collecting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a dust collecting main cover and a dust collecting expansion cover of the embodiment of the present invention;
fig. 4 is a schematic structural view of a wear-resistant material guide plate according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a wear-resistant material guide plate according to an embodiment of the present invention;
fig. 6 is another schematic structural view of a wear-resistant material guide plate according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a belt cleaning apparatus according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating the effect of the installation of the blowing pipe and the belt according to the embodiment of the present invention;
fig. 9 is a schematic structural view of an air blowing pipe according to an embodiment of the present invention.
In the figure: 1-an ore crushing device; 2-crushing dust collection cover; 3-an ore delivery device; 4-a material receiving and dust collecting device; 41-dust collection main cover; 42-material receiving port; 43-dust collecting and capacity expanding cover; 44-a dust removal port; 45-dust guide inclined plane; 46-wear resistant material guide plate; 47-material collecting plate; 48-wear-resistant protective powder layer; 5-blanking dust collection cover; 6-screening device; 7-screening dust collection cover; 8-a bag filter; 91-a storage bin; 92-an air blowing pipe; 93-air blowing duckbill; 94-bar air-blowing opening; 95-mounting the bracket.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, the mine dust comprehensive treatment system comprises an ore crushing device 1 and a screening device 6, wherein an ore conveying device 3 is installed between the ore crushing device 1 and the screening device 6, a crushing dust collecting point is arranged at the top end of the ore crushing device 1, a crushing dust collecting cover 2 is correspondingly covered at the crushing dust collecting point, a receiving dust collecting point is arranged at the belt receiving point of the ore conveying device 3, a receiving dust collecting device 4 is correspondingly arranged at the receiving dust collecting point, a blanking dust collecting point is arranged at the belt blanking point of the ore conveying device 3, a blanking dust collecting cover 5 is correspondingly covered at the blanking dust collecting point, a belt cleaning device corresponding to the blanking dust collecting cover is further arranged on the return section of the ore conveying device, a screening dust collecting point is arranged at the top end of the screening device 6, and a screening dust collecting point is correspondingly covered with a screening dust collecting cover 7, the crushing dust collection cover 2, the receiving dust collection device 4, the blanking dust collection cover 5 and the screening dust collection cover 7 are respectively connected to a dust collection system through dust collection pipelines, and a plurality of dust collection points are connected with the dust collection system through orderly arranging the dust collection pipelines, so that the dust collection device has small occupied space and low cost, can uniformly collect and recycle dust, and solves the problems of large occupied space, high equipment cost and the like caused by placing a plurality of dust collectors in a workshop of a factory building in the prior art; through a plurality of dust production points of rational arrangement in each technology link to produce some at each dust and directly set up the dust cage and collect it, this kind of mode can in time collect the dust, has shortened the distance between dust and the dust cage, has controlled the chance of dust outdiffusion, has reduced the time that the dust stops in the workshop, and the dust collection effect is obviously superior to prior art, just the utility model discloses still have advantages such as simple structure, reasonable in design, with low costs, be favorable to extensively using widely.
As shown in fig. 1, 2 and 3, the material receiving and dust collecting device 4 includes a dust collecting main cover 41 covering a material receiving point of the belt, a material receiving port 42 is formed at the top end of the dust collecting main cover 41, dust collecting expansion covers 43 are respectively connected to the front and rear sides of the material receiving port 42 at the top end of the dust collecting main cover 41, the dust collecting expansion covers 43 are arranged to be of a conical structure with a square bottom and a circular top, a dust removing port 44 connected with a dust collecting system is formed at the top end of the conical structure, and a dust guiding inclined surface 45 for guiding dust to flow to the dust removing port 44 is formed in the conical structure; the dust collection expansion cover 43 is arranged to increase the distance between the dust removal port 44 and the material surface of the belt by increasing the dust collection space, so that materials conveyed on the material surface of the belt are not easy to absorb away from the dust removal port 44, the problem that the materials are easy to absorb away in the prior art is solved, in addition, the dust collection expansion cover 43 is arranged to be of a conical structure with a square bottom and a circular top, so that a dust guide inclined plane 45 for guiding dust to flow towards the dust removal port 44 is formed in the conical structure, after the materials descend, the dust can move along the dust guide inclined plane 45 after splashing, flows out from the dust removal port 44, the dust discharge effect is good, the phenomenon of escaping from two sides is not easy to occur, the phenomenon that the dust collection effect is poor due to the dead angle in the prior art is solved, the material receiving device 4 is convenient to use, has a large dust collection space, and the dust collection space is large, Can prevent conveyed materials from being sucked out, not only improves the dust collecting effect, but also has a guide plate with good wear resistance and improves the service performance of equipment.
The bottom downwardly extending of main cover 41 gathers dust is provided with and is used for enclosing the sealed flange that is used for improving sealed effect of establishing around the belt, still be provided with on the main cover 41 gathers dust with the belt on the first curtain that keeps off of material contact, the setting of sealed flange and first curtain that keeps off is used for improving sealed effect, prevents that the smoke and dust from escaping.
A wear-resistant material guide plate 46 is arranged in the dust collection main cover 41 corresponding to the material receiving port 42, the wear-resistant material guide plate 46 is obliquely arranged towards the conveying direction of the belt, and material contact surfaces of the wear-resistant material guide plate 46 are uniformly provided with transversely arranged material collecting plates 47; in the process of starting to use, when the powdery material contacts the wear-resistant material guide plate 46, the material collecting plate 47 can prevent the powdery material from descending, and after the powdery material continuously accumulates, a wear-resistant protective powder layer 48 can be formed on the material contact surface of the wear-resistant material guide plate 46, so that when the material continuously impacts the wear-resistant material guide plate 46, due to the effect of the wear-resistant protective powder layer 48, the wear-resistant effect is better, the wear-resistant material guide plate 46 cannot be abraded, the service life can be effectively prolonged, the structure is simple, and the effect is obvious.
Referring to fig. 4, the cross section of the material collecting plate 47 is a stepped structure; referring to fig. 5, the material collecting plate 47 is a vertical plate perpendicular to the wear-resistant material guiding plate 46; referring to fig. 6, the material collecting plate 47 has a circular cross-section. All the three structures have the function of blocking the powder material from falling, so that the material can form a wear-resistant protective powder layer 48 on the material contact surface of the wear-resistant material guide plate 46, and the service life of the wear-resistant material guide plate 46 is prolonged.
After the material falls to the belt, can be along with the belt moves forward, towards the material receives the motion of material mouth 42 front side, is located consequently the material receives the raise dust quantity of material mouth 42 front side to be more than being located the raise dust quantity of material receiving mouth 42 rear side, so for better improvement raise dust collection effect, will be located the material receives the mouth 42 front side the volume of dust collection expansion cover 43 is greater than being located the material receives the mouth 42 rear side the volume of dust collection expansion cover 43 is located the front side like this the dust collection effect of dust collection expansion cover 43 will be than being located the rear side the effect of receiving a car of dust collection expansion cover 43 is better some, whole improvement raise dust collection effect.
The dust collecting system comprises a bag type dust collector 8, an induced draft fan is correspondingly arranged on the bag type dust collector 8, and the dust removing opening 44 is connected with the bag type dust collector 8 through a dust collecting main pipe. The draught fan during operation makes produce the negative pressure in the bag collector 8, will each collect dirt point through the pipeline of gathering dust and all produce the negative pressure, the raise dust can be responsible for through gathering dust under the negative pressure and unified being inhaled extremely in the bag collector 8, bag collector 8 filters the dust, discharges to the atmosphere after filtering and accord with emission standard, bag collector 8 is the better filter equipment of dust removal effect among the prior art, and dust collection efficiency is high, the technique is reliable, and because bag collector 8 structure is great, can gather dust simultaneously to a plurality of dirt points of collecting in this system, and not only dust removal effect is higher, but also has improved bag collector 8's work efficiency. The bag-type dust collector 8 and the induced draft fan are both in the prior art, belong to the technology known by the ordinary engineering technicians in the field, and are not described herein and are not shown in the drawings.
Referring to fig. 7, 8 and 9, the belt cleaning device comprises a storage bin 91 located at a belt discharging point of the ore conveying device and used for receiving materials, an air blowing pipe 92 is installed in the storage bin 91, the air blowing pipe 92 is transversely arranged below a return belt, one end of the air blowing pipe 92 is closed, the other end of the air blowing pipe 92 is connected with a pulse air blowing device, an air blowing duckbill 93 facing the belt is arranged along the length direction of the air blowing pipe 92, a strip-shaped air blowing opening 94 corresponding to the width of the belt is arranged on the air blowing duckbill 93 along the length direction, the air outlet direction of the strip-shaped air blowing opening 94 is opposite to the movement direction of the return belt, the discharging dust collection cover 5 is located above the belt discharging point, the top end of the discharging dust collection cover 5 is connected with a dust collection system, and a second curtain contacting with the materials on the belt is further arranged on the discharging dust collection cover 5, the lower end of the blanking dust collection cover 5 extends to the top end of the storage bin 91. During the process of conveying materials by the belt, the pulse blowing device acts to generate compressed gas which enters the gas blowing pipe 92 and is blown out from the strip-shaped gas blowing opening 94, since the air outlet direction of the strip-shaped air blowing openings 94 is opposite to the moving direction of the belt in the return segment, namely the belt of the return segment blown against the wind upwards has the same function as the scraper blade in the prior art, but does not need to be in direct contact with the belt, the material on the belt at the return section can be blown down in real time, one part of the blown material is lifted up under the action of wind power, the lifted material can float in the blanking dust hood 5, then sucked away by the dust collecting system for filtering, while another part of the cleaned material will fall directly into the bin 91 below with the falling material, and when the material falls into the bin 91, if a part of the dust is generated, the dust is collected by the dust collecting system and filtered. Belt cleaning device uses with the cooperation of unloading dust cage 5, simple structure, reasonable in design, can not cause the damage to the belt, clears up the completion back to the belt, collects the raise dust that produces again in the clearance process and the unloading in-process, and not only belt clearance effect is better, and the raise dust collection effect after clearing up is better moreover.
The blanking dust collection cover 5 and the storage bin 91 are matched to surround the roller, the belt and the air blowing pipe 92 to form a semi-sealed space, so that when the air blowing pipe 92 works and cleans dust on the belt, scattered dust is not easy to splash into a workshop, still floats in the blanking dust collection cover 5 and the storage bin 91, and is collected by the dust collection system.
The two ends of the air blowing pipe 92 are detachably connected to the ore conveying device through mounting brackets 95. Easy dismounting is favorable to maintenance and change.
The pulse blowing device comprises a compression fan, a pulse valve is correspondingly arranged on the compression fan, and the air blowing pipe 92 is connected to the compression fan through a hose. Compressed air generated by the compression fan is transmitted into the air blowing pipe 92 through a hose, so that the wind force acting on the belt is large, and the dust blowing effect is better; further adopt the pulse valve to be used for having the pulse function with the compressed gas that produces, then the wind-force that acts on the belt can have the vibration effect, further improves the clearance effect of belt. The compression fan is installed outside the blanking dust collection cover 5 and the bin 91 and connected with the air blowing pipe 92 through a hose, and both the compression fan and the pulse valve are in the prior art, belong to the technology known by ordinary engineering technicians in the field, and are not described herein again and are not shown in the figures.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. Mine dust comprehensive treatment system, including ore crushing device and screening plant, ore crushing device with install ore conveyor, its characterized in that between the screening plant: the top end of the ore crushing device is provided with a crushing dust collecting point, the crushing dust collecting point is correspondingly covered with a crushing dust collecting cover, the belt receiving point of the ore conveying device is provided with a material receiving dust collecting point, the material receiving dust collecting point is correspondingly provided with a material receiving dust collecting device, the belt blanking point of the ore conveying device is provided with a blanking dust collecting point, the blanking dust collecting point is correspondingly covered with a blanking dust collecting cover, the return section of the ore conveying device is also provided with a belt cleaning device corresponding to the blanking dust collecting cover, the top end of the screening device is provided with a screening dust collecting point, the screening dust collecting point is correspondingly covered with a screening dust collecting cover, and the crushing dust collecting cover, the material receiving dust collecting device, the blanking dust collecting cover and the screening dust collecting cover are respectively connected to a dust collecting system through dust collecting pipelines;
the dust collecting and collecting device is characterized in that a dust collecting main cover which covers a belt material receiving point is arranged on the material receiving and collecting device, a material receiving port is formed in the top end of the dust collecting main cover, dust collecting expansion covers are respectively connected to the front side and the rear side of the material receiving port at the top end of the dust collecting main cover, the dust collecting expansion covers are arranged to be of a conical structure with square bottom and circular top, a dust removing port connected with a dust collecting system is formed in the top end of the conical structure, and a dust guide inclined plane for guiding dust to flow to the dust removing port is formed in the conical structure; a wear-resistant material guide plate is arranged in the dust collection main cover corresponding to the material receiving port, the wear-resistant material guide plate is obliquely arranged towards the conveying direction of the belt, and material collecting plates which are transversely arranged are uniformly distributed on the material contact surface of the wear-resistant material guide plate; the bottom end of the dust collection main cover extends downwards to form a sealing flange which is arranged around the belt and used for improving the sealing effect, and the dust collection main cover is also provided with a first retaining curtain which is in contact with materials on the belt;
the belt sweeping device comprises a bin which is positioned at the belt blanking point of the ore conveying device and is used for receiving materials, an air blowing pipe is arranged in the storage bin, the air blowing pipe is transversely arranged below the return belt, one end of the air blowing pipe is closed, the other end of the air blowing pipe is connected with a pulse air blowing device, an air blowing duckbill facing the belt is arranged on the air blowing pipe along the length direction, the air blowing duckbill is provided with a strip-shaped air blowing opening corresponding to the width of the belt along the length direction, the air outlet direction of the strip-shaped air blowing opening is opposite to the movement direction of the belt in the return segment, the blanking dust-collecting cover is positioned above the blanking point of the belt, the top end of the blanking dust-collecting cover is connected with the dust collecting system, the unloading is gathered dust and is covered still to be provided with the second check curtain with material contact on the belt, the lower extreme of unloading dust cover extends to the top of feed bin.
2. The mine dust comprehensive treatment system of claim 1, wherein: the cross section of the material collecting plate is of a stepped structure.
3. The mine dust comprehensive treatment system of claim 1, wherein: the material collecting plate is a vertical plate vertical to the wear-resistant material guide plate.
4. The mine dust comprehensive treatment system of claim 1, wherein: the cross section of the material collecting plate is of a circular structure.
5. The mine dust comprehensive treatment system of claim 1, wherein: the dust collection expansion cover is located on the front side of the material receiving port, the volume of the dust collection expansion cover is larger than that of the dust collection expansion cover located on the rear side of the material receiving port.
6. The mine dust comprehensive treatment system of claim 1, wherein: and the two ends of the air blowing pipe are respectively detachably connected to the ore conveying device through mounting brackets.
7. The mine dust comprehensive treatment system of claim 1, wherein: the pulse blowing device comprises a compression fan, a pulse valve is correspondingly arranged on the compression fan, and the air blowing pipe is connected to the compression fan through a hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764126.0U CN210816644U (en) | 2019-10-21 | 2019-10-21 | Mine dust comprehensive treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764126.0U CN210816644U (en) | 2019-10-21 | 2019-10-21 | Mine dust comprehensive treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210816644U true CN210816644U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921764126.0U Active CN210816644U (en) | 2019-10-21 | 2019-10-21 | Mine dust comprehensive treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210816644U (en) |
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2019
- 2019-10-21 CN CN201921764126.0U patent/CN210816644U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Mine dust comprehensive treatment system Effective date of registration: 20220322 Granted publication date: 20200623 Pledgee: Anqiu Shandong rural commercial bank Limited by Share Ltd. Pledgor: WEIFANG TIANJIE ENVIRONMENTAL PROTECTION SCI-TECH Co.,Ltd. Registration number: Y2022980002906 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |