CN213082471U - Powder briquetting machine convenient to pay-off - Google Patents
Powder briquetting machine convenient to pay-off Download PDFInfo
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- CN213082471U CN213082471U CN202020993509.1U CN202020993509U CN213082471U CN 213082471 U CN213082471 U CN 213082471U CN 202020993509 U CN202020993509 U CN 202020993509U CN 213082471 U CN213082471 U CN 213082471U
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Abstract
The utility model discloses a powder briquetting machine convenient to pay-off, include: the device comprises a feeding device, a storage bin, a hydraulic system, a control system and a powder forming device; a feeding device is arranged at the upper end of the storage bin; a powder forming device is arranged on the front side of the storage bin; a hydraulic system is arranged on the right side of the storage bin and is controlled by adopting frequency conversion; and a control system is arranged on the left side of the storage bin. The device adopts full-automatic briquetting, does not need personnel to watch in the whole course, enables the dust of plate making factory to obtain reutilization, and is not only environment-friendly but also energy-saving.
Description
Technical Field
The utility model belongs to the technical field of extrusion equipment technique and specifically relates to a powder briquetting machine convenient to pay-off is related to.
Background
Before no powder briquetting machine, the sand light powder that plywood factory etc. system board trade ground out through the grinder has two kinds of uses, one kind is as the boiler heating as the fuel, and one kind is low price and sells for other trades that do needs such as mosquito-repellent incense, because is the powder that is more thin, is used for burning and is difficult to send into the boiler, and the dust drifts about everywhere simultaneously, arouses the conflagration easily. The plate-making factory needs fuel for burning boiler heating plates, and in order to make better use of dust and not pollute the environment, equipment for solving the powder is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a powder briquetting machine convenient to pay-off.
To achieve the above object, the present invention adopts the following:
a powder briquetting machine for facilitating feeding, comprising: the device comprises a feeding device, a storage bin, a hydraulic system, a control system and a powder forming device; a feeding device is arranged at the upper end of the storage bin; a powder forming device is arranged on the front side of the storage bin; a hydraulic system is arranged on the right side of the storage bin and is controlled by adopting frequency conversion; a control system is arranged on the left side of the storage bin;
the feeding device comprises a feeding hopper, a top plate, a support column, a motor, a connecting plate, a rotating shaft and a spiral push plate; the upper end of the storage bin is provided with a feeding hopper, and the feeding hopper is communicated with the interior of the storage bin; a top plate is arranged at the upper end of the feeding hopper and is fixed on the feeding hopper through a support; a motor is arranged in the middle of the feeding hopper and is fixed on the top plate through a connecting plate; a rotating shaft is arranged at the bottom end of the motor and extends into the storage bin; a spiral push plate is arranged on the rotating shaft;
the storage bin comprises a hopper, a spiral feeding mechanism and a motor speed reducer driving device; a funnel is arranged in the center of the storage bin and matched with a feeding hopper; a spiral feeding mechanism is arranged in the front-rear direction of the bottom end of the hopper; a motor speed reducer driving device is arranged at the bottom end of the rear side of the storage bin, the motor speed reducer driving device drives the spiral feeding mechanism through a chain wheel and chain mechanism, and the rear end of the spiral feeding mechanism penetrates through the storage bin and is arranged on the motor speed reducer driving device; the front end of the spiral feeding mechanism penetrates through the storage bin and extends into the powder forming device to be matched with the powder forming device for use;
the powder forming device comprises an extrusion cavity, a transition cavity, an extrusion cylinder, a compaction cylinder and a locking cylinder; a compaction cylinder is arranged on the left side of the bottom end of the extrusion cavity; a transition cavity is arranged on the right side of the extrusion cavity; the right side of the transition cavity is provided with an extrusion cylinder; the locking cylinder is arranged on the left side of the upper end of the extrusion cavity; the extrusion cavity, the pressing cylinder, the transition cavity, the extrusion cylinder and the locking cylinder are in mechanical transmission connection.
Preferably, the extrusion cylinder comprises an extrusion cylinder barrel, an extrusion cylinder piston rod and an extrusion cylinder transition plate; a squeezing cylinder piston rod is arranged inside the squeezing cylinder barrel; the front end of the cylinder barrel of the extrusion cylinder is provided with an extrusion cylinder transition plate, and the front end of a piston rod of the extrusion cylinder penetrates through the extrusion cylinder transition plate; the transition cavity comprises an extrusion die push rod; the extrusion die push rod is arranged in the transition cavity, and the rear end of the extrusion die push rod is fixedly connected with the extrusion cylinder piston rod.
Preferably, the extrusion cavity comprises a box body, a base, a prepressing die, an upper plate, a prepressing cylinder top block, a prepressing cylinder piston rod, a cylinder ejector rod, a pressing rod guide block cover and a cylinder top head; a base is arranged at the bottom end of the box body; the front end of the extrusion die push rod extends to the bottom end of the interior of the box body, and an extrusion rod shaft sleeve is arranged between the extrusion die push rod and the box body; a pressing cylinder is arranged on the left side of the bottom end of the box body; the pressing cylinder is arranged on the pressing cylinder and is fixed through a bolt; arranging a prepressing die in the box body; an upper plate is arranged at the upper end of the box body; a prepressing cylinder is arranged at the center of the upper end of the upper plate; a prepressing cylinder piston rod is arranged in the prepressing cylinder, the bottom end of the prepressing cylinder piston rod penetrates through the upper plate, and the prepressing cylinder piston rod is fixed on a prepressing die through a prepressing cylinder top block; an air cylinder ejector rod is arranged on the upper plate on the left side of the pre-pressing cylinder, and the bottom end of the air cylinder ejector rod penetrates through the upper plate and is fixed on the pre-pressing die; a compression rod guide block is arranged on the cylinder ejector rod; a pressing rod guide block cover is arranged at the upper end of the pressing rod guide block; an air cylinder top is arranged on the compression bar guide block; the locking cylinder is fixed on the extrusion cavity through a cylinder fixing side plate.
Preferably, the locking cylinder comprises a cylinder barrel and a cylinder piston; the cylinder barrel of the air cylinder is fixed on the fixed side plate of the air cylinder through the fixed plate of the air cylinder; and a cylinder piston is arranged in the cylinder barrel, and the front end of the cylinder piston penetrates through the cylinder fixing side plate and the cylinder fixing plate to be connected with the cylinder top.
Preferably, the pressing cylinder comprises a pressing die, a pressing die cavity, a pressing cylinder barrel and a pressing cylinder piston rod; the pressing die and the pressing cylinder barrel are fixed through a pressing die cavity and are communicated; a compaction cylinder piston rod is arranged inside the compaction cylinder barrel; the pressing die and the extrusion cavity are fixed through a pressing die fixing plate.
Preferably, the pre-compaction mould comprises a cylinder by last mould and lower mould, goes up the mould and accounts for the fritter of whole radian, and the lower mould accounts for most of whole radian to guarantee that most sand light powder all wraps up the shaping in the lower chamber smoothly and closely knit in extrusion process.
Preferably, the outlet end of the compaction die is provided with a material sensor for monitoring whether a material exists in the cavity to realize unattended operation.
The utility model has the advantages of it is following:
1. the device adopts full-automatic briquetting, does not need personnel to watch in the whole process, enables the sanding powder of a plate making factory to be recycled, and is environment-friendly and energy-saving.
2. The device greatly reduces the pollution of dust to air.
3. The device adopts a hydraulic variable frequency driving system, can set different motor rotating speeds according to different working conditions, and achieves the purposes of energy conservation and high efficiency.
4. The device adopts the pressure of the pressing cylinder and the pressure of the extruding cylinder to be separately controlled, and the pressed lump material has good compactness, is not easy to scatter and is convenient to transport.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a front view of the powder briquetting machine convenient for feeding of the present invention.
Fig. 2 is the internal structure schematic diagram of the storage silo of the utility model.
Fig. 3 is a sectional view of the powder molding apparatus.
In the figures, the various reference numbers are:
1-a storage bin, 11-a funnel, 12-a spiral feeding mechanism, 13-a motor reducer driving device, 2-a hydraulic system, 3-an extrusion cavity, 31-a box body, 32-a base, 33-a prepressing die, 34-an upper plate, 35-a prepressing cylinder, 36-a prepressing cylinder piston rod, 37-a prepressing cylinder top block, 38-a cylinder top rod, 39-a pressing rod guide block, 310-a pressing rod guide block cover, 311-a cylinder top head, 312-a pressing cylinder, 4-an extrusion cylinder, 41-an extrusion cylinder barrel, 42-an extrusion cylinder piston rod, 43-an extrusion cylinder transition plate, 5-a transition cavity, 51-an extrusion die push rod, 6-a pressing cylinder, 61-a pressing die, 62-a pressing cylinder barrel and 63-a pressing die cavity, 64-a compaction cylinder piston rod, 65-a compaction die fixing plate, 7-a locking cylinder, 71-a cylinder barrel, 72-a cylinder piston, 73-a cylinder fixing plate, 74-a cylinder fixing side plate, 8-an extrusion rod shaft sleeve, 9-a control system, 10-a feeding device, 101-a feeding hopper, 102-a top plate, 103-a support column, 104-a motor, 105-a connecting plate, 106-a rotating shaft and 107-a spiral push plate.
Detailed Description
In order to illustrate the invention more clearly, the invention is further described below with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1 to 3, a powder compact machine facilitating feeding includes: the device comprises a feeding device 10, a storage bin 1, a hydraulic system 2, a control system 9 and a powder forming device; the feeding device 10 is arranged at the upper end of the storage bin 1, so that materials can be continuously fed into the storage bin 1; a powder forming device is arranged on the front side of the storage bin 1; a hydraulic system is arranged on the right side of the storage bin 1; the left side of the storage bin 1 is provided with a control system 9; the hydraulic system 2 adopts a variable frequency motor to drive a vane pump, and drives an oil cylinder to operate through a control valve group; the control system 9 provides control signals, collects sensor data, makes safety alarm protection signals and the like, and achieves full-automatic operation of equipment without personnel on duty.
The feeding device 10 comprises a hopper 101, a top plate 102, a support post 103, a motor 104, a connecting plate 105, a rotating shaft 106 and a spiral push plate 107; the upper end of the storage bin 1 is provided with the feeding hopper 101, and the feeding hopper 101 is communicated with the interior of the storage bin 1, so that feeding is facilitated in the storage bin 1; a top plate 102 is arranged at the upper end of the hopper 101, and the top plate 102 is fixed on the hopper 101 through a support column 103; a motor 104 is arranged in the middle of the hopper 101, and the motor 104 is fixed on the top plate 102 through a connecting plate 105; a rotating shaft 106 is arranged at the bottom end of the motor 104, the rotating shaft 106 extends to the interior of the storage bin 1, and a spiral push plate 107 is arranged on the rotating shaft 106;
the storage bin 1 comprises a hopper 11, a spiral feeding mechanism 12 and a motor speed reducer driving device 13; the funnel 11 is arranged at the center of the interior of the storage bin 1, so that powder can be conveniently gathered, and the subsequent steps can be conveniently carried out; the spiral feeding mechanism 12 is arranged at the front and rear direction of the bottom end of the funnel 11, the motor speed reducer driving device 13 is arranged at the bottom end of the rear side of the storage bin 1, the motor speed reducer driving device 13 drives the spiral feeding mechanism through a chain wheel and chain mechanism, the rear end of the spiral feeding mechanism 12 penetrates through the storage bin and is arranged on the motor speed reducer driving device 13, and the motor speed reducer driving device 13 is arranged to conveniently drive the spiral feeding mechanism 12 to rotate, so that waste materials in the funnel 11 are pushed forwards; the front end of the spiral feeding mechanism 12 penetrates through the storage bin 1 and extends into the powder forming device, and the spiral feeding mechanism 12 is matched with the powder forming device for use, so that the powder is pushed into the powder forming device by the spiral feeding mechanism 12.
The motor reducer driving device 13 of the device can be a gear, the gear is sleeved at the tail end of the spiral feeding mechanism, the gear is connected with the driving shaft of the motor through a chain at the moment, and when the motor is started, the driving shaft rotates to drive the spiral feeding mechanism to rotate.
Further, the powder forming device comprises an extrusion cavity 3, a transition cavity 5, an extrusion cylinder 4, a compaction cylinder 6 and a locking cylinder 7; a compaction cylinder 6 is arranged on the left side of the bottom end of the extrusion cavity 3, and a transition cavity 5 is arranged on the right side of the extrusion cavity 3; the right side of the transition cavity 5 is provided with an extrusion cylinder 4, and a locking cylinder 7 is arranged on the left side of the upper end of the extrusion cavity 3; the extrusion cavity 3, the compaction cylinder 6, the transition cavity 5, the extrusion cylinder 4 and the locking cylinder 7 are in mechanical transmission connection. When the powder is pushed into the extrusion chamber 3 from the storage bin 1, the powder in the extrusion chamber 3 is extruded into the extrusion cylinder 4 through the extrusion cylinder 4 and the transition cavity 5, the powder is extruded and molded through the extrusion cylinder 4, finally the extruded and molded material is sent out, and at the moment, the extrusion cylinder 4 and the pre-pressing cylinder 35 are restored to the original positions.
Further, the extrusion chamber includes an extrusion cylinder bore 41, an extrusion cylinder piston rod 42, and an extrusion cylinder transition plate 43; a squeeze cylinder piston rod 42 is provided inside the squeeze cylinder tube 41; a squeezing cylinder transition plate 43 is arranged at the front end of the squeezing cylinder barrel 41, and the front end of the squeezing cylinder piston rod 42 penetrates through the squeezing cylinder transition plate 43; the transition cavity 5 comprises an extrusion die push rod 51; the extrusion die push rod 51 is arranged in the transition cavity 5, the rear end of the extrusion die push rod is fixedly connected with the extrusion cylinder piston rod 42, and when the extrusion cylinder piston rod 42 is pushed forwards, the extrusion die push rod 51 can be driven to push forwards.
Further, the extrusion chamber 3 includes a box 31, a base 32, a pre-pressing mold 33, an upper plate 34, a pre-pressing cylinder 35, a pre-pressing cylinder top block 37, a pre-pressing cylinder piston rod 36, a cylinder top rod 38, a pressing rod guide block 39, a pressing rod guide block cover 310, and a cylinder top head 311; a base 32 is arranged at the bottom end of the box body 31; the front end of the extrusion die push rod 51 extends to the inner bottom end of the box body 31, and an extrusion rod shaft sleeve 8 is arranged between the extrusion die push rod 51 and the box body; a pressing cylinder 312 is arranged on the left side of the bottom end of the box body 31, and a pressing cylinder 6 is arranged on the pressing cylinder 312 and fixed through a bolt; a prepressing die 33 is arranged in the box body 31; an upper plate 34 is arranged at the upper end of the box body 31; a prepressing cylinder 35 is arranged at the center of the upper end of the upper plate 34; a prepressing cylinder piston rod 36 is arranged in the prepressing cylinder 35, and the bottom end of the prepressing cylinder piston rod 36 passes through the upper plate 34 and is fixed on the prepressing die 33 through a prepressing cylinder top block 37; an air cylinder ejector rod 38 is arranged on the upper plate 34 on the left side of the pre-pressing cylinder 35, and the bottom end of the air cylinder ejector rod 38 penetrates through the upper plate 34 and is fixed on the pre-pressing die 33; a pressing rod guide block 39 is arranged on the cylinder ejector rod 38; a hold-down bar guide block cover 310 is arranged at the upper end of the hold-down bar guide block 39; a cylinder top 311 is arranged on the pressing rod guide block 39; the locking cylinder 7 is fixed on the extrusion chamber 3 by a cylinder fixing side plate 74. The box body 31 is also provided with a dust suction port, and dust in the air can be sucked into the box body through the dust suction port.
Further, the lock cylinder 7 includes a cylinder bore 71 and a cylinder piston 72; the cylinder barrel 71 is fixed on a cylinder fixing side plate 74 through a cylinder fixing plate 73; a cylinder piston 72 is provided inside the cylinder tube 71, and the front end of the cylinder piston 72 is connected to the cylinder head 311 through a cylinder fixing side plate 74 and a cylinder fixing plate 73.
Further, the pressing cylinder 6 comprises a pressing die 61, a pressing die cavity 63, a pressing cylinder barrel 62 and a pressing cylinder piston rod 64; the pressing die 61 and the pressing cylinder barrel 62 are fixed through a pressing die cavity 63, and the pressing die 61 and the pressing cylinder barrel 62 are communicated; a pressing cylinder piston rod 64 is arranged inside the pressing cylinder barrel 62; the pressing die 61 and the extrusion cavity 3 are fixed on the pressing cylinder 312 through a pressing die fixing plate 65.
Further, a cylinder is formed by last mould and lower mould to pre-compaction mould 33, goes up the mould and accounts for the small part of whole radian, and the lower mould accounts for the most of whole radian to guarantee that most sand light powder all wraps up the shaping in the lower chamber in extrusion process and smooth and closely knit.
Further, the outlet end of the pressing die 61 is provided with a material sensor for monitoring whether a material is in the cavity to realize unattended operation.
When the device is used, the length of a product is input on a control system 9, the device is started, firstly, a spiral push plate is driven by a motor 104 to rotate, materials in a hopper 101 are pushed into a storage bin 1, then, powder is pushed into an extrusion cavity 3 through a spiral feeding mechanism 12 in the storage bin 1, then, prepressing is carried out downwards through a prepressing cylinder 35, after the prepressing is finished, a locking cylinder 7 locks a cylinder ejector rod 311, a pressing cylinder 6 presses downwards, an extrusion cylinder piston rod 42 in the extrusion cylinder 4 moves forwards, meanwhile, an extrusion die push rod 51 is driven to move forwards, the powder which is subjected to the prepressing is further pressed in the extrusion cavity, when the extrusion pressure reaches the pressure set by the control system 9, the pressing cylinder 6 is loosened, the extrusion cylinder 4 extrudes the blocked materials, and at the time, the prepressing cylinder 35 and the extrusion cylinder 4 return simultaneously. The whole process only needs to input the set pressure of the compaction cylinder 6 and the set pressure of the extrusion cylinder 4 for the first time, all actions are completed automatically through the control system, and manual watching is not needed.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (7)
1. A powder briquetting machine convenient for feeding, comprising: the device comprises a feeding device, a storage bin, a hydraulic system, a control system and a powder forming device; a feeding device is arranged at the upper end of the storage bin; a powder forming device is arranged on the front side of the storage bin; a hydraulic system is arranged on the right side of the storage bin and is controlled by adopting frequency conversion; a control system is arranged on the left side of the storage bin;
the feeding device comprises a feeding hopper, a top plate, a support column, a motor, a connecting plate, a rotating shaft and a spiral push plate; the upper end of the storage bin is provided with a feeding hopper, and the feeding hopper is communicated with the interior of the storage bin; a top plate is arranged at the upper end of the feeding hopper and is fixed on the feeding hopper through a support; a motor is arranged in the middle of the feeding hopper and is fixed on the top plate through a connecting plate; a rotating shaft is arranged at the bottom end of the motor and extends into the storage bin; a spiral push plate is arranged on the rotating shaft;
the storage bin comprises a hopper, a spiral feeding mechanism and a motor speed reducer driving device; a funnel is arranged in the center of the storage bin and matched with a feeding hopper; a spiral feeding mechanism is arranged in the front-rear direction of the bottom end of the hopper; a motor speed reducer driving device is arranged at the bottom end of the rear side of the storage bin, the motor speed reducer driving device drives the spiral feeding mechanism through a chain wheel and chain mechanism, and the rear end of the spiral feeding mechanism penetrates through the storage bin and is arranged on the motor speed reducer driving device; the front end of the spiral feeding mechanism penetrates through the storage bin and extends into the powder forming device to be matched with the powder forming device for use;
the powder forming device comprises an extrusion cavity, a transition cavity, an extrusion cylinder, a compaction cylinder and a locking cylinder; a compaction cylinder is arranged on the left side of the bottom end of the extrusion cavity; a transition cavity is arranged on the right side of the extrusion cavity; the right side of the transition cavity is provided with an extrusion cylinder; the locking cylinder is arranged on the left side of the upper end of the extrusion cavity; the extrusion cavity, the pressing cylinder, the transition cavity, the extrusion cylinder and the locking cylinder are in mechanical transmission connection.
2. The powder briquetting machine convenient for feeding as claimed in claim 1, wherein said extrusion cylinder includes an extrusion cylinder bore, an extrusion cylinder piston rod and an extrusion cylinder transition plate; a squeezing cylinder piston rod is arranged inside the squeezing cylinder barrel; the front end of the cylinder barrel of the extrusion cylinder is provided with an extrusion cylinder transition plate, and the front end of a piston rod of the extrusion cylinder penetrates through the extrusion cylinder transition plate; the transition cavity comprises an extrusion die push rod; the extrusion die push rod is arranged in the transition cavity, and the rear end of the extrusion die push rod is fixedly connected with the extrusion cylinder piston rod.
3. The powder briquetting machine convenient for feeding according to claim 2, wherein the extrusion chamber comprises a box body, a base, a prepressing die, an upper plate, a prepressing cylinder top block, a prepressing cylinder piston rod, a cylinder ejector rod, a compaction rod guide block cover and a cylinder top head; a base is arranged at the bottom end of the box body; the front end of the extrusion die push rod extends to the bottom end of the interior of the box body, and an extrusion rod shaft sleeve is arranged between the extrusion die push rod and the box body; a pressing cylinder is arranged on the left side of the bottom end of the box body; the pressing cylinder is arranged on the pressing cylinder and is fixed through a bolt; arranging a prepressing die in the box body; an upper plate is arranged at the upper end of the box body; a prepressing cylinder is arranged at the center of the upper end of the upper plate; a prepressing cylinder piston rod is arranged in the prepressing cylinder, the bottom end of the prepressing cylinder piston rod penetrates through the upper plate, and the prepressing cylinder piston rod is fixed on a prepressing die through a prepressing cylinder top block; an air cylinder ejector rod is arranged on the upper plate on the left side of the pre-pressing cylinder, and the bottom end of the air cylinder ejector rod penetrates through the upper plate and is fixed on the pre-pressing die; a compression rod guide block is arranged on the cylinder ejector rod; a pressing rod guide block cover is arranged at the upper end of the pressing rod guide block; an air cylinder top is arranged on the compression bar guide block; the locking cylinder is fixed on the extrusion cavity through a cylinder fixing side plate.
4. The powder briquetting machine of claim 3, wherein the lock cylinder includes a cylinder bore and a cylinder piston; the cylinder barrel of the air cylinder is fixed on the fixed side plate of the air cylinder through the fixed plate of the air cylinder; and a cylinder piston is arranged in the cylinder barrel, and the front end of the cylinder piston penetrates through the cylinder fixing side plate and the cylinder fixing plate to be connected with the cylinder top.
5. The powder briquetting machine convenient for feeding of claim 3, wherein the compaction cylinder comprises a compaction die, a compaction die cavity, a compaction cylinder bore and a compaction cylinder piston rod; the pressing die and the pressing cylinder barrel are fixed through a pressing die cavity and are communicated; a compaction cylinder piston rod is arranged inside the compaction cylinder barrel; the pressing die and the extrusion cavity are fixed through a pressing die fixing plate.
6. The powder briquetting machine convenient for feeding of claim 3, wherein the pre-pressing die is composed of an upper die and a lower die to form a cylinder, the upper die occupies a small part of the whole radian, and the lower die occupies a large part of the whole radian, so as to ensure that most of the sanding powder is wrapped in the lower cavity to be molded smoothly and compactly in the extrusion process.
7. The powder briquetting machine convenient for feeding of claim 5, wherein the outlet end of the compaction die is provided with a material sensor for monitoring whether there is material in the cavity to realize unattended operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020993509.1U CN213082471U (en) | 2020-06-03 | 2020-06-03 | Powder briquetting machine convenient to pay-off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020993509.1U CN213082471U (en) | 2020-06-03 | 2020-06-03 | Powder briquetting machine convenient to pay-off |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160254A (en) * | 2021-08-02 | 2022-03-11 | 中电建生态环境设计研究有限公司 | Discharge device for municipal sewage deeply-buried pollutants and use method thereof |
-
2020
- 2020-06-03 CN CN202020993509.1U patent/CN213082471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160254A (en) * | 2021-08-02 | 2022-03-11 | 中电建生态环境设计研究有限公司 | Discharge device for municipal sewage deeply-buried pollutants and use method thereof |
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