CN112792051A - Electric field fly ash recovery equipment and recovery method thereof - Google Patents
Electric field fly ash recovery equipment and recovery method thereof Download PDFInfo
- Publication number
- CN112792051A CN112792051A CN202011580306.0A CN202011580306A CN112792051A CN 112792051 A CN112792051 A CN 112792051A CN 202011580306 A CN202011580306 A CN 202011580306A CN 112792051 A CN112792051 A CN 112792051A
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- coal
- ash
- cleaning
- inner cavity
- suction box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/024—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by impinging the gas to be cleaned essentially in a perpendicular direction onto the liquid surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to electric field fly ash recovery equipment and a recovery method thereof, which comprise a coal suction box, wherein a left side plate of the coal suction box is spliced and communicated with a fly ash guide pipe, an ash suction pump is respectively installed on the fly ash guide pipe, an ash guide pipe is spliced at the bottom of the coal suction box, a fly ash cleaning device comprises a protective housing, the bottom of the protective housing is fixedly connected with the top of the coal suction box, a first servo motor is installed at the left side of the bottom of an inner cavity of the protective housing, an output end of the top of the first servo motor is sleeved with a synchronous driving wheel, the left side and the right side of the top of the inner cavity of the protective housing are respectively and rotatably penetrated with a rotating screw rod, the rotating screw rod at the left side is positioned in the inner cavity of the protective housing and sleeved with the synchronous driving wheel, a rotating screw rod at the right side is positioned in the inner cavity of the protective housing and sleeved with a synchronous driven.
Description
Technical Field
The invention belongs to the field of electric field pulverized coal recovery, and particularly relates to electric field pulverized coal recovery equipment and a recovery method thereof.
Background
Fly ash is fine ash collected from flue gas generated after coal combustion, and is main solid waste discharged from coal-fired power plants. The main oxides of the fly ash of the thermal power plant in China comprise SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 and the like. Along with the development of the power industry, the discharge amount of fly ash of coal-fired power plants is increased year by year, and the fly ash becomes one of industrial waste residues with larger discharge amount in China. A large amount of fly ash can generate dust without treatment, thereby polluting the atmosphere; if discharged into a water system, the river can be silted, and toxic chemicals in the river can cause harm to human bodies and organisms. However, the fly ash can be recycled, such as being used as an admixture of concrete and the like.
The existing fly ash recovery equipment has the defects that the inside of a fly ash recovery device and the inside of the recovery device are inconvenient to clean.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides electric field fly ash recycling equipment and a recycling method thereof.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
an electric field fly ash recovery device and a recovery method thereof comprise a coal suction box, wherein a left side end plate of the coal suction box is spliced and communicated with a fly ash guide pipe, an ash pump is respectively installed on the fly ash guide pipe, an ash guide pipe is spliced at the bottom of the coal suction box, and a fly ash cleaning device is fixed at the top of the coal suction box;
the coal ash cleaning device comprises a protective housing, the bottom of the protective housing is fixedly connected with the top of a coal suction box, a first servo motor is installed on the left side of the bottom of an inner cavity of the protective housing, an output end at the top of the first servo motor is sleeved with a synchronous driving wheel, the left side and the right side of the top of the inner cavity of the protective housing are respectively and rotatably penetrated with a rotating screw rod, the rotating screw rod is positioned in an inner cavity of the protective housing and is sleeved with the synchronous driving wheel on the left side, the rotating screw rod is positioned on the right side and is sleeved with a synchronous driven wheel, the synchronous driving wheel is sleeved with the synchronous driven wheel through a connecting belt, two groups of rotating screw rod top screwed sleeves are sleeved with lifting support sleeves, two groups of lifting support sleeves top fixedly connected with a cleaning adjusting box, the inner cavity of the cleaning adjusting box is horizontally provided with a bidirectional screw rod, two-way lead screw right side runs through clearance regulating box right-hand member lateral wall and cup joints mutually with second servo motor left side output, and is two sets of remove the slider bottom and be fixed with the clearance regulation pole, clearance regulation pole bottom runs through clearance regulating box bottom plate, protection housing about both sides respectively and extends to the coal-absorbing box inner chamber and cup joints the clearance shovel piece.
Preferably, a fixed base is arranged below the coal suction box, the left side and the right side of the top of the fixed base are fixedly connected with side plates at the left end and the right end of the coal suction box through supporting columns, and a recovery water tank is fixed to the top of the fixed base.
Preferably, fixed chutes are formed in the side walls of the left end and the right end of the recovery water tank, the fixed chutes are two groups of lifting slide blocks which are connected with each other in a sliding mode, and the lifting slide blocks are connected with each other through a filter screen plate.
Preferably, the bottom of the side plate at the right end of the recovery water tank is connected with a liquid discharge hose in an inserting mode, and the liquid discharge hose is provided with a liquid pump and a liquid stop valve respectively.
Preferably, the bottom plate of the cleaning adjusting box and the side plates at the upper end and the lower end of the protective housing are both provided with transverse sliding grooves for the two groups of cleaning adjusting rods to horizontally move.
Preferably, the bottom of the ash guide pipe extends to the bottom of the inner cavity of the recovery water tank.
Preferably, the bottom of the cleaning shovel block is of an inverted right-angled triangle structure, one side of the inverted right-angled triangle structure is attached to the left side wall and the right side wall of the inner cavity of the coal washing box.
Preferably, the length and the width of the protective casing are both larger than those of the coal suction box.
Preferably, the left side of the bidirectional screw rod is rotatably connected with the left side end side wall of the inner cavity of the protective casing through a rotating shaft.
Has the advantages that:
firstly, opening an ash stop valve, starting an ash pump to pump the coal ash generated by construction into a coal ash suction box through a coal ash guide pipe, enabling the coal ash entering the coal ash suction box to enter a recycling water tank through an ash guide pipe, combining the coal ash powder with water in a water tank to form coal ash slurry to sink to the bottom of the water tank, immersing generated bubbles in a filter screen plate to further filter the coal ash slurry, driving a telescopic spring to descend when the amount of the accumulated sludge on the filter screen plate is increased continuously and the gravity is increased, cleaning sludge on the filter screen plate by the water in the water tank, and reducing the gravity, wherein the spring drives the filter screen plate to ascend;
when clearing up the coal suction box inner chamber, start the two-way lead screw rotation of second servo motor drive, because the two-way lead screw outer wall is located the spiro union of different screw thread directions and has two sets of moving slide blocks, and then drive two sets of clearance regulation poles through moving slide block and move to opposite direction respectively, until will clear up the shovel piece adjustment to with coal washing box inner chamber lateral wall looks butt, start first servo motor and drive synchronous action wheel and rotate, because synchronous action wheel cup joints mutually through connecting band and synchronous follow driving wheel, and then drive simultaneously about two sets of rotating screw rods rotate, because rotating screw rod top spiro union cover is equipped with the lift support cover, it writes and reciprocates to drive the clearance regulation at top through the lift support cover, and then drive clearance shovel piece reciprocate to hang down to the coal ash that adheres to on the coal suction box inner lateral wall.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the soot cleaning device of the present invention;
FIG. 3 is a schematic view of the internal structure of the recovery tank of the present invention;
FIG. 4 is a schematic view of a rotary screw connection of the present invention;
the reference numbers in the drawings are as follows:
1-coal suction box, 2-coal ash guide pipe, 3-ash suction pump, 5-ash guide pipe, 6-coal ash cleaning device, 601-protective housing, 602-first servo motor, 603-synchronous driving wheel, 604-rotating screw rod, 605-synchronous driven wheel, 606-connecting belt, 607-lifting support sleeve, 608-cleaning adjusting box, 609-bidirectional screw rod, 6010-moving slide block, 6011-second servo motor, 6012-cleaning adjusting rod, 6013-cleaning shovel block, 7-fixed base, 8-supporting upright post, 9-recovery water tank, 10-fixed chute, 11-lifting slide block, 12-filter screen plate, 13-liquid discharge hose, 14-liquid suction pump, 15-liquid stop valve and 16-rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, the present invention is an electric field fly ash recycling apparatus and a recycling method thereof, comprising a coal suction box 1, a left end side plate of the coal suction box 1 is inserted and communicated with a fly ash conduit 2, the fly ash conduit 2 is respectively provided with an ash suction pump 3, the bottom of the coal suction box 1 is inserted and connected with an ash guide pipe 5, and the top of the coal suction box 1 is fixed with a fly ash cleaning device 6;
the coal ash cleaning device 6 comprises a protective housing 601, the bottom of the protective housing 601 is fixedly connected with the top of a coal suction box 1, a first servo motor 602 is arranged on the left side of the bottom of an inner cavity of the protective housing 601, the output end of the top of the first servo motor 602 is sleeved with a synchronous driving wheel 603, rotating screws 604 are respectively rotatably penetrated on the left side and the right side of the top of the inner cavity of the protective housing 601, the rotating screws 604 on the left side are positioned in the inner cavity of the protective housing 601 and are sleeved with the synchronous driving wheel 603, the rotating screws 604 on the right side are positioned in the inner cavity of the protective housing 601 and are sleeved with a synchronous driven wheel 605, the synchronous driving wheel 603 is sleeved with the synchronous driven wheel 605 through a connecting belt 606, lifting support sleeves 607 are screwed on the tops of the two groups of rotating screws 604, a cleaning adjusting box 608 is fixedly connected on, a second servo motor 6011 is fixed on the outer wall of the right side of the cleaning and adjusting box 608, a bidirectional screw 609 penetrates through the side wall of the right end of the cleaning and adjusting box 608 and is sleeved with the output end of the left side of the second servo motor 6011 on the right side, a cleaning and adjusting rod 6012 is fixed at the bottom of the two sets of movable sliding blocks 6010, the bottom of the cleaning and adjusting rod 6012 penetrates through the bottom plate of the cleaning and adjusting box 608 and the upper side and the lower side of the protective housing 601 respectively and extends to the inner cavity of the coal suction box 1 and is sleeved with a.
Wherein, a fixed base 7 is arranged below the coal-absorbing box 1, the left side and the right side of the top of the fixed base 7 are fixedly connected with the left side plate and the right side plate of the coal-absorbing box 1 through a supporting upright post 8, a recovery water tank 9 is fixed on the top of the fixed base 7, the left side wall and the right side wall of the recovery water tank 9 are both provided with fixed chutes 10, two groups of fixed chutes 10 are connected with lifting sliders 11 in a sliding way, the two groups of lifting sliders 11 are connected through a filter screen 12, the bottom of the side plate at the right end of the recovery water tank 9 is connected with a liquid discharge hose 13 in an inserting way, the liquid discharge hose 13 is respectively provided with a liquid suction pump 14 and a liquid stop valve 15, the bottom plate of a cleaning adjusting box 608 and the side plates at the upper end and the lower end of a protective housing 601 are both provided with transverse chutes for horizontal movement of two groups of cleaning adjusting, the length and the width of the protective cover 601 are both larger than those of the coal suction box 1, and the left side of the bidirectional screw 609 is rotatably connected with the side wall of the left end of the inner cavity of the protective cover 601 through the rotating shaft 16.
One specific application of this embodiment is: when the electric field fly ash recovery device and the recovery method thereof are used, firstly, an ash stop valve 4 is opened, an ash pump 3 is started to pump the constructed fly ash into a coal suction box 1 through a fly ash guide pipe 2, the fly ash entering the coal suction box 1 enters a recovery water tank 9 through an ash guide pipe 5, fly ash powder is combined with water in a water tank to become fly ash slurry, the fly ash slurry is deposited at the bottom of the water tank, generated bubbles immerse a filter screen plate 12 to further filter the fly ash slurry, when the accumulated fly ash on the filter screen plate 12 is continuously increased, the gravity is increased, a telescopic spring 17 is driven to descend, the water in the water tank cleans sludge on the filter screen plate 12, the gravity is reduced, and the spring drives the filter screen plate 12 to ascend;
when cleaning the inner cavity of the coal suction box 1, the second servo motor 6011 is started to drive the two-way screw 609 to rotate, two sets of moving sliding blocks 6010 are screwed on the outer wall of the two-way screw 609 in different thread directions, and then the two sets of cleaning adjusting rods 6012 are driven by the moving sliding blocks 6010 to move in opposite directions respectively until the cleaning shovel 6013 is adjusted to abut against the side wall of the inner cavity of the coal suction box 1, the first servo motor 602 is started to drive the synchronous driving wheel 603 to rotate, and because the synchronous driving wheel 603 is sleeved with the synchronous driven wheel 605 through the connecting belt 606, the left and right sets of rotating screws 604 are driven to rotate simultaneously, and because the top of the rotating screws 604 is screwed with the lifting support sleeve 607, the cleaning adjusting writing 608 at the top is driven to move up and down through the lifting support sleeve 607, and then the cleaning shovel 6013 is driven to move up and down to hang down coal.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments have not been described in detail to avoid obscuring the description of the invention in its specific form, and it is to be understood that many modifications and variations are possible in light of the teaching of this specification. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. An electric field fly ash recovery plant which is characterized in that: the coal ash cleaning device comprises a coal suction box (1), a coal ash guide pipe (2) is inserted and communicated with a left side end side plate of the coal suction box (1), ash suction pumps (3) are respectively installed on the coal ash guide pipes (2), an ash guide pipe (5) is inserted and connected with the bottom of the coal suction box (1), and a coal ash cleaning device (6) is fixed at the top of the coal suction box (1);
the coal ash cleaning device (6) comprises a protective housing (601), the bottom of the protective housing (601) is fixedly connected with the top of the coal suction box (1), a first servo motor (602) is installed on the left side of the bottom of an inner cavity of the protective housing (601), the output end of the top of the first servo motor (602) is sleeved with a synchronous driving wheel (603), the left side and the right side of the top of the inner cavity of the protective housing (601) are respectively rotated and penetrated by a rotating screw (604), the rotating screw (604) is positioned in the inner cavity of the protective housing (601) and sleeved with the synchronous driving wheel (603), the rotating screw (604) is positioned in the inner cavity of the protective housing (601) and sleeved with the synchronous driven wheel (605), the synchronous driving wheel (603) is sleeved with the synchronous driven wheel (605) through a connecting belt (606), and the top of the rotating screw (604) is sleeved, the two groups of supporting lifting sleeves (607) are connected through a fixed rod (17), the top parts of the two groups of lifting supporting sleeves (607) are fixedly connected with a cleaning and adjusting box (608), a bidirectional screw (609) is horizontally arranged in the inner cavity of the cleaning adjusting box (608), two groups of movable sliding blocks (6010) are screwed on the outer wall of the bidirectional screw (609) in different thread directions, a second servo motor (6011) is fixed on the outer wall of the right side of the cleaning adjusting box (608), the right side of the bidirectional screw (609) penetrates through the side wall of the right end of the cleaning adjusting box (608) and is sleeved with the output end of the left side of a second servo motor (6011), the bottom of two groups of moving sliding blocks (6010) is fixed with a cleaning adjusting rod (6012), the bottom of the cleaning adjusting rod (6012) penetrates through the bottom plate of the cleaning adjusting box (608) and the upper side and the lower side of the protective housing (601) respectively to extend to the inner cavity of the coal suction box (1) and is sleeved with a cleaning shovel block (6013).
2. The electric field fly ash recovery device according to claim 1, wherein: inhale coal bin (1) below and be provided with unable adjustment base (7), both ends curb plate fixed connection about unable adjustment base (7) top left and right sides passes through support post (8) and inhales coal bin (1), unable adjustment base (7) top is fixed with recovery water tank (9), the exhaust hole has been seted up at recovery water tank (9) top.
3. The electric field fly ash recovery device according to claim 2, characterized in that: fixed spout (10) have all been seted up, and are two sets of to both ends lateral wall about recovery tank (9) sliding connection has lift slider (11), two sets of on fixed spout (10) connect through filter screen board (12) between lift slider (11), recovery tank (9) inner chamber top is passed through expanding spring (17) and is filtered screen board (12) top elastic connection.
4. The electric field fly ash recovery device according to claim 2, characterized in that: the bottom of the side plate at the right end of the recovery water tank (9) is connected with a liquid discharge hose (13) in an inserting mode, and the liquid discharge hose (13) is provided with a liquid pump (14) and a liquid stop valve (15) respectively.
5. The electric field fly ash recovery device according to claim 1, wherein: the bottom plate of the cleaning adjusting box (608) and the side plates at the upper end and the lower end of the protective housing (601) are both provided with transverse sliding grooves for horizontal movement of the two groups of cleaning adjusting rods (6012).
6. The electric field fly ash recovery device according to claim 1, wherein: the bottom of the ash guide pipe (5) extends to the bottom of the inner cavity of the recovery water tank (9).
7. The electric field fly ash recovery device according to claim 1, wherein: the bottom of the cleaning shovel block (6013) is of an inverted right-angled triangle structure, one side of the inverted right-angled triangle structure is attached to the left side wall and the right side wall of the inner cavity of the coal washing box.
8. The electric field fly ash recovery device according to claim 1, wherein: the length and the width of the protective cover casing (601) are both larger than those of the coal suction box (1).
9. The electric field fly ash recovery device and the recovery method thereof as claimed in claim 1, wherein: the left side of the bidirectional screw rod (609) is rotatably connected with the side wall of the left end of the inner cavity of the protective housing (601) through a rotating shaft (16).
10. The electric field fly ash recovery method according to claim 1, wherein: the method is characterized in that:
step S1, firstly, opening an ash stopping valve (4), starting an ash pump (3) to pump the coal ash generated in construction into a coal ash suction box (1) through a coal ash guide pipe (2), enabling the coal ash entering the coal ash suction box (1) to enter a recovery water tank (9) through an ash guide pipe (5), and combining the coal ash powder with water in a water pool to form coal ash slurry to sink to the bottom of the water pool;
step S2, the generated air bubbles are soaked in the filter screen plate (12) to further filter the air bubbles, when the mud and ash accumulated on the filter screen plate (12) continuously increase, the gravity increases to drive the expansion spring (17) to descend, the water in the water tank cleans the mud and residue on the filter screen plate (12), the gravity decreases, and the spring drives the filter screen plate (12) to ascend;
step S3, when cleaning the inner cavity of the coal suction box (1), starting a second servo motor (6011) to drive a bidirectional screw rod (609) to rotate, and driving two groups of cleaning adjusting rods (6012) to respectively move in opposite directions through the movable slide blocks (6010) as the outer wall of the bidirectional screw rod (609) is in threaded connection with two groups of movable slide blocks (6010) in different thread directions until the cleaning shovel block (6013) is adjusted to be abutted against the side wall of the inner cavity of the coal suction box (1);
and S4, starting a first servo motor (602) to drive a synchronous driving wheel (603) to rotate, wherein the synchronous driving wheel (603) is sleeved with a synchronous driven wheel (605) through a connecting belt (606) to drive a left group of rotating screw rods (604) and a right group of rotating screw rods (604) to rotate simultaneously, and the top of each rotating screw rod (604) is screwed and sleeved with a lifting support sleeve (607) to drive a cleaning adjustment writing (608) at the top to move up and down through the lifting support sleeve (607), so as to drive a cleaning shovel block (6013) to move up and down to hang down coal ash attached to the side wall of the inner end of the coal suction box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580306.0A CN112792051B (en) | 2020-12-28 | 2020-12-28 | Electric field fly ash recovery equipment and recovery method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580306.0A CN112792051B (en) | 2020-12-28 | 2020-12-28 | Electric field fly ash recovery equipment and recovery method thereof |
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| CN112792051A true CN112792051A (en) | 2021-05-14 |
| CN112792051B CN112792051B (en) | 2023-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113620065A (en) * | 2021-10-11 | 2021-11-09 | 常州黑珍珠建材股份有限公司 | Concrete block's conveyer with automatic sign indicating number function of piling |
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| DE20204121U1 (en) * | 2002-03-15 | 2002-08-08 | Hutfilz, Uwe, 71069 Sindelfingen | Device for cleaning vessels (ashtrays) with dust-like and / or cigarette-like contents |
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| CN113620065A (en) * | 2021-10-11 | 2021-11-09 | 常州黑珍珠建材股份有限公司 | Concrete block's conveyer with automatic sign indicating number function of piling |
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| CN112792051B (en) | 2023-04-07 |
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