CN110903003A - Piston injection type sludge forming and distributing device - Google Patents
Piston injection type sludge forming and distributing device Download PDFInfo
- Publication number
- CN110903003A CN110903003A CN201910999479.7A CN201910999479A CN110903003A CN 110903003 A CN110903003 A CN 110903003A CN 201910999479 A CN201910999479 A CN 201910999479A CN 110903003 A CN110903003 A CN 110903003A
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- piston
- cylinder
- distributing device
- mud
- extruding
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a piston injection type sludge forming and distributing device which comprises a conveying mesh belt, a feed hopper, an extrusion cylinder and an extrusion piston, wherein a material containing cavity is arranged in the extrusion cylinder, a discharge nozzle is arranged on the extrusion cylinder and is communicated with the material containing cavity, one end of the extrusion piston is arranged in the material containing cavity and can do piston motion along the axis of the material containing cavity, the extrusion cylinder is provided with a plurality of extrusion cylinders and is sequentially arranged in a row, the conveying mesh belt is arranged below the extrusion cylinders, and the feed hopper is arranged above the extrusion cylinders and is used for supplying materials to the material containing cavity of the extrusion cylinders. The mud materials pushed out by the material extruding barrel fall onto the conveying net belt in the form of mud belts, the width between the mud belts is proper, the thickness is controllable, hot air can pass through the gaps between the adjacent mud belts, the effective heat exchange contact area between the mud layer and the hot air is ensured, and the drying quality of finished materials is improved.
Description
Technical Field
The invention discloses a piston injection type sludge forming and distributing device, and belongs to the field of sludge drying equipment.
Background
Most of the belt sludge dryers at present use a hob for slitting and molding. For some sludge with properties similar to that of slurry with high water content, because of the partial characteristics of non-Newtonian fluid, sometimes the sludge can fall without the rotation of a hobbing cutter, and the sludge falls onto the mesh belt surface and is spread out as liquid drops, and if the mesh belt speed is not high enough, the sludge dropped on the mesh belt surface is quickly polymerized with small piles spread out on the mesh belt to form a compact cake layer with larger volume. Therefore, the slitter does not play a role in dispersing mud, the mud or the piled cake layer moves on a mesh belt line, the effective heat exchange area contacted with hot air is not increased, the moisture in the large cake layer cannot be separated, the finished material drying quality is poor, and the target moisture content cannot be achieved. The large piece pile and cake layer which are still wet cause pressure to the discharging and conveying equipment.
Disclosure of Invention
The invention provides a piston injection type sludge forming and distributing device, mud materials pushed out by a material extruding cylinder fall onto a conveying net belt in a mud belt form, the width of each mud belt is proper, the thickness of each mud belt is controllable, hot air can pass through a gap between adjacent mud belts, the effective heat exchange contact area between a mud layer and hot air is ensured, and the drying quality of finished products is improved.
The invention relates to a piston injection type sludge forming and distributing device which comprises a conveying mesh belt, a feeding hopper, an extruding cylinder and an extruding piston, wherein a material containing cavity is arranged in the extruding cylinder, a discharging nozzle is arranged on the extruding cylinder and communicated with the material containing cavity, one end of the extruding piston is arranged in the material containing cavity and can do piston motion along the axis of the material containing cavity, the extruding cylinder is provided with a plurality of extruding cylinders and is sequentially arranged in a row, the conveying mesh belt is arranged below the extruding cylinders, and the feeding hopper is arranged above the extruding cylinder and is used for supplying materials to the material containing cavity of the extruding cylinder.
Further, the feeder hopper downside is equipped with the discharge gate, crowded feed cylinder upside is equipped with the feed inlet, the discharge gate is connected the feed inlet, the articulated automatic gravity valve plate of discharge gate one side, the automatic gravity valve plate can be followed articulated one side and relied on the gravity whereabouts in order to open the discharge gate, and work as when crowded material piston pushes away the material, can drive the automatic gravity valve plate is followed the rotatory rise in articulated one side in order to close the discharge gate.
Furthermore, a blanking inclined plane inclined with the vertical direction is arranged on the feed hopper.
Furthermore, the material extruding barrel is obliquely arranged with the horizontal direction, and the discharging nozzle is arranged at one end obliquely downwards.
The device further comprises a belt speed measuring head, a frequency converter and a hydraulic oil cylinder, wherein an expansion shaft of the hydraulic oil cylinder is connected with the extruding piston, the frequency converter is used for controlling the hydraulic oil cylinder, and the belt speed measuring head is used for detecting the transmission speed of the conveying net belt.
Further, the height distance between the discharge nozzle and the conveying mesh belt is less than 100 mm.
Furthermore, a first monitoring position, a second monitoring position and a third monitoring position are sequentially arranged in the feeding hopper at different height positions along the vertical direction.
Furthermore, the hydraulic cylinder and the material extruding barrel are arranged on the hinged truss support.
Furthermore, a plurality of extruding pistons are connected to a telescopic shaft of one hydraulic oil cylinder.
The invention brings the following beneficial effects: the mud materials pushed out by the material extruding cylinder fall onto the conveying net belt in the form of mud belts, the width between the mud belts is proper, the thickness is controllable, the gaps between the adjacent mud belts can allow hot air to pass through, the effective heat exchange contact area between the mud layer and the hot air is ensured, and the drying quality of the finished materials is improved
Drawings
FIG. 1 is a structural diagram of a piston injection type sludge forming and distributing device according to the present invention;
FIG. 2 is a left side view of a piston injection type sludge forming and distributing device according to the present invention;
fig. 3 is a top view of a piston injection type sludge forming and distributing device according to the present invention.
The reference numerals in the figures are respectively:
1-extruding cylinder;
2-a feed hopper;
3-extruding piston;
4-a discharge nozzle;
5-a conveying mesh belt;
6-automatic gravity valve plate;
7-a hydraulic oil cylinder;
8-belt speed measuring head;
9-articulated truss supports;
10-a PLC control system;
11-a material containing cavity;
12-blanking inclined plane;
13-a third monitoring bit;
14-a second monitoring bit;
15-first monitoring bit.
Detailed description of the preferred embodiments
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Examples
Please refer to fig. 1, this embodiment discloses a piston injection type sludge forming and distributing device, which includes a conveying mesh belt 5, a feeding hopper 2, a material extruding cylinder 1 and a material extruding piston 3, wherein a material accommodating cavity 11 is arranged in the material extruding cylinder 1, a material discharging nozzle 4 is arranged on the material extruding cylinder 1, the material discharging nozzle 4 is communicated with the material accommodating cavity 11, one end of the material extruding piston 3 is arranged in the material accommodating cavity 11 and can perform piston motion along the axis of the material accommodating cavity 11, the material extruding cylinder 1 is provided with a plurality of material extruding cylinders and arranged in a row in sequence, the conveying mesh belt 5 is arranged below the material extruding cylinders 1, and the feeding hopper 2 is arranged above the material extruding cylinder 1 and used for feeding the material accommodating cavity 11 of the material extruding cylinder 1. The mesh conveyor belt 5 may be a teflon mesh or a polyester mesh, etc.
Specifically, the material extruding barrel 1 is used as a main working section of the device, slurry-like wet mud enters the material extruding barrel 1 from the feed hopper 2, and the slurry-like wet mud is extruded from the discharge nozzle 4 by the extrusion piston 3 in the material extruding barrel 1 to form a mud belt shape and falls onto the conveying mesh belt 5.
The extruding barrel 1 is arranged obliquely to the horizontal direction, and the discharging nozzle 4 is arranged at one end which is inclined downwards. It should be noted that the installation slope of the barrel 1 is very small, so that the mud operation is basically free from the action of gravity. In addition, further, still include articulated truss support 9, hydraulic cylinder 7 and crowded feed cylinder 1 all locate on articulated truss support 9. The distance between the discharging nozzle 4 and the conveying mesh belt 5 and the spraying angle can be slightly adjusted by utilizing the hinged truss support 9.
In a preferred embodiment, the height distance between the discharge nozzle 4 and the conveying mesh belt 5 is less than 100 mm.
The belt speed measuring head is characterized by further comprising a belt speed measuring head 8, a frequency converter and a hydraulic oil cylinder 7, wherein an expansion shaft of the hydraulic oil cylinder 7 is connected with the extruding piston 3, the frequency converter is used for controlling the hydraulic oil cylinder 7, and the belt speed measuring head 8 is used for detecting the transmission speed of the conveying net belt 5. The material extruding piston 3 is driven by a hydraulic oil cylinder 7, and the moving speed can be adjusted.
In this embodiment, a plurality of the extruding pistons 3 are connected to the telescopic shaft of one hydraulic oil cylinder 7. Namely, each hydraulic oil cylinder 7 pushes a plurality of extruding pistons 3, each extruding cylinder 1 corresponds to one discharging nozzle 4, and a plurality of extruding cylinders 1 are arranged in parallel in a row, so that the extruded mud belt is distributed to the width of the whole conveying mesh belt 5.
2 downside of feeder hopper is equipped with the discharge gate, 1 upside of crowded feed cylinder is equipped with the feed inlet, the discharge gate is connected the feed inlet, the articulated automatic gravity valve plate 6 that is equipped with in discharge gate one side, automatic gravity valve plate 6 can be followed articulated one side and relied on the gravity whereabouts in order to open the discharge gate, and work as when crowded material piston 3 pushes away the material, can drive automatic gravity valve plate 6 is followed the rotatory rise in articulated one side in order to close the discharge gate.
In one embodiment, the feeding hopper 2 is provided with a blanking bevel 12 inclined to the vertical. In the initial feeding state, the wet slurry-like sludge naturally flows down from the feeding hopper 2 along the discharging slope 12, and therefore, the discharging slope 12 is set to naturally fall in the feeding hopper 2 by using the self-gravity of the sludge, so that no additional power is required. Further, a first monitoring bit 15, a second monitoring bit 14 and a third monitoring bit 13 are provided in the feed hopper 2 at different height positions in the vertical direction in this order.
In addition, the measuring device further comprises a PLC control system 10, the belt speed measuring head 8 is connected with the PLC control system 10 through a transmission line of a speed measuring signal, the first monitoring position 15, the second monitoring position 14 and the third monitoring position 13 transmit respective detected material level signals to the PLC control system 10 through a transmission line of the material level monitoring signals, and a control line output by the PLC control system 10 is connected with the frequency converter to control the frequency converter to stop, start and change speed.
When the device is opened, the material extruding piston 3 is in a reset position, and the conveying mesh belt 5 is firstly enabled to move forwards. The material does not exist in the material containing cavity 11 of the extruding cylinder 1 at first, after the conveying mesh belt 5 runs for a period of time, the wet mud feeding equipment is started, and the dilute mud is filled into the feed hopper 2 through the connecting guide pipe to fill the working cavity. The running speed of the conveying mesh belt 5 measured by the belt speed measuring head 8 is read into the PLC control system 10, and the PLC control system 10 calculates the appropriate propelling speed of the extruding piston 3 according to the experiment experience, so that the oil supply pump of the hydraulic oil cylinder 7 is adjusted to the appropriate oil supply speed. When wet mud materials in the feed hopper 2 gradually increase and flow over the third monitoring position 13, the hydraulic oil cylinder 7 pushes the material extruding piston 3 forward to extrude the mud materials, and the automatic gravity valve plate 6 is jacked up at the same time. The material extruding piston 3 basically moves forward at a constant speed, mud material flowing out of the material discharging nozzle 4 drops on the surface of the conveying mesh belt 5 and forms straight and uniform mud strips along with the movement of the conveying mesh belt 5. When the extruding piston 3 reaches the end of the material containing cavity 11, the piston in the oil cylinder also reaches the stroke end, the oil supply direction is automatically changed after the detection device at the oil return end of the oil cylinder judges that the oil supply is stopped, and the oil supply speed is increased, so that the extruding piston 3 is reset at a high speed (several times to dozens of times of the speed of the advancing mode). During this time, the automatic gravity valve plate 6 sinks again. The feeding equipment at the upstream of the feeding hopper 2 continuously operates until the feeding equipment reaches the first monitoring position 15, the material level in the feeding hopper 2 overflows the third monitoring position 13 once and again, the controller in the oil cylinder driving system judges that mud is always discharged and conveyed in the working cavity, and the bidirectional oil valve is used for repeatedly supplying oil in the forward direction and the reverse direction to drive the extruding piston 3 to extrude the mud and reset. When the material level rises to the first monitoring position 15 on the feeding hopper 2, the controller outputs a signal to enable a frequency converter of the feeding equipment to place a power motor of the feeding equipment to stop rotating, the feeding equipment stops temporarily, the conveying net belt 5 does not transmit any more, and the mud conveying is stopped until the material level falls to the second monitoring position 14 between the first monitoring position 15 and the third monitoring position 13. The second monitoring bit 14 is a reset monitoring bit, which restarts the feed device when the fill level is below it, on the premise of slowing down the operating speed of the feed device (5% of each time).
The piston injection type sludge forming and distributing device is particularly suitable for liquid-slurry sludge with high water content, and is basically not influenced by gravity in the process from sludge forming to sludge distribution on the conveying mesh belt 5. The mud is pressed by the extruding piston 3 to slowly flow out in the material containing cavity 11 formed by the extruding barrels 1 side by side, and drops on the surface of the conveying mesh belt 5 by a small fall to form a uniform mud belt, so that the mud does not directly drop on the surface of the mesh belt to spread into a large-area cake layer when the common hobbing cutter slitter is used for processing the mud at the present stage. The device has the advantages that the monitoring positions of the material quantity in the feed hopper 2 are multiple, and the feeding and the output are safe and controllable. The propelling speed of the extrusion piston 3 for extruding the pug can be adjusted in real time according to the traveling speed of the conveying mesh belt 5, the two correspond well, the width of a pug belt formed on the line of the conveying mesh belt 5 by the pug which is ejected and dropped by the discharge nozzle 4 at the tail end of the material accommodating cavity 11 is proper, the thickness is controllable, and the gap between the adjacent pug belts can enable hot air to pass through due to the fact that the distance between the discharge nozzles 4 is large enough, and the effective heat exchange contact area between a pug layer and hot air is guaranteed. Compared with a cake layer and a pile formed by dropping and spreading out the slime below the hob slitter, the invention has the advantages that the dispersion effect on the slime material is obvious, the hot air drying quality is improved, the pressure on the downstream discharging conveying equipment cannot be caused by the slime on the 5 layers of the obtained conveying mesh belts, and the durability of the conveying part of the drying unit is improved. Whole shaping distributing device and dry box body can good adaptation, and main working section is supported by articulated truss support 9, has good structural stability and can finely tune the blowout angle of shaping material.
In conclusion, the mud materials pushed out by the material extruding barrel 1 fall onto the conveying mesh belt 5 in the form of mud belts, the width of each mud belt is proper, the thickness of each mud belt is controllable, hot air can pass through the gaps between the adjacent mud belts, the effective heat exchange contact area between the mud layer and the hot air is ensured, and the drying quality of finished materials is improved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a piston injection type mud shaping distributing device, a serial communication port, including conveying mesh belt, feeder hopper, crowded feed cylinder and crowded material piston, be equipped with in the crowded feed cylinder and hold the material chamber, be equipped with out the charging spout on the crowded feed cylinder, go out the charging spout intercommunication hold the material chamber, crowded material piston one end is located hold in the material chamber and can follow and hold material chamber axis and be piston motion, crowded feed cylinder is equipped with a plurality ofly and one row of setting of arranging in proper order, conveying mesh belt locates the below of a plurality of crowded feed cylinders, the feeder hopper is located the top of crowded feed cylinder is used for holding the material chamber feed for crowded feed cylinder.
2. The piston-injected sludge forming and distributing device as claimed in claim 1, wherein a discharge hole is formed at the lower side of the feeding hopper, a feed hole is formed at the upper side of the extruding cylinder, the discharge hole is connected with the feed hole, an automatic gravity valve plate is hinged at one side of the discharge hole, the automatic gravity valve plate can fall along the hinged side by gravity to open the discharge hole, and when the extruding piston pushes the material, the automatic gravity valve plate can be driven to rotate and rise along the hinged side to close the discharge hole.
3. The piston-injected sludge forming and distributing device as claimed in claim 2, wherein the feeding hopper is provided with a blanking inclined surface inclined to the vertical direction.
4. The piston-injected sludge forming and distributing device as claimed in claim 3, wherein the barrel for squeezing is disposed obliquely to the horizontal direction, and the discharge nozzle is disposed at one end obliquely downward.
5. The piston-injection sludge forming and distributing device according to claim 1, further comprising a belt speed measuring head, a frequency converter and a hydraulic cylinder, wherein an expansion shaft of the hydraulic cylinder is connected with the material extruding piston, the frequency converter is used for controlling the hydraulic cylinder, and the belt speed measuring head is used for detecting the transmission speed of the conveying mesh belt.
6. The piston-injected sludge forming and distributing device as claimed in claim 1, wherein the height distance between the discharging nozzle and the conveying mesh belt is less than 100 mm.
7. The piston injection type sludge forming and distributing device as claimed in claim 1, wherein a first monitoring site, a second monitoring site and a third monitoring site are sequentially arranged at different height positions in the feeding hopper along the vertical direction.
8. The piston-injected sludge molding and distributing device of claim 5, further comprising a hinged truss support, wherein the hydraulic oil cylinder and the material extruding cylinder are both arranged on the hinged truss support.
9. The piston-injected sludge molding and distributing device of claim 5, wherein a plurality of the extruding pistons are connected to a telescopic shaft of one hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910999479.7A CN110903003A (en) | 2019-10-21 | 2019-10-21 | Piston injection type sludge forming and distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910999479.7A CN110903003A (en) | 2019-10-21 | 2019-10-21 | Piston injection type sludge forming and distributing device |
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| Publication Number | Publication Date |
|---|---|
| CN110903003A true CN110903003A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910999479.7A Pending CN110903003A (en) | 2019-10-21 | 2019-10-21 | Piston injection type sludge forming and distributing device |
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| Country | Link |
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| CN (1) | CN110903003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998619A (en) * | 2020-08-31 | 2020-11-27 | 中国矿业大学 | Coal slime drying treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101175041B1 (en) * | 2011-10-31 | 2012-08-17 | 주식회사 마이크로웨이브테크놀로지 | A sludge treatment apparatus |
| CN206570195U (en) * | 2017-03-24 | 2017-10-20 | 无锡金园环境科技有限公司 | Push away mud machine |
| CN209224594U (en) * | 2018-07-25 | 2019-08-09 | 湖南军信环保股份有限公司 | A kind of sludge extrusion forming device |
| CN211284117U (en) * | 2019-10-21 | 2020-08-18 | 广东申菱环境系统股份有限公司 | Piston injection type sludge forming and distributing device |
-
2019
- 2019-10-21 CN CN201910999479.7A patent/CN110903003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101175041B1 (en) * | 2011-10-31 | 2012-08-17 | 주식회사 마이크로웨이브테크놀로지 | A sludge treatment apparatus |
| CN206570195U (en) * | 2017-03-24 | 2017-10-20 | 无锡金园环境科技有限公司 | Push away mud machine |
| CN209224594U (en) * | 2018-07-25 | 2019-08-09 | 湖南军信环保股份有限公司 | A kind of sludge extrusion forming device |
| CN211284117U (en) * | 2019-10-21 | 2020-08-18 | 广东申菱环境系统股份有限公司 | Piston injection type sludge forming and distributing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998619A (en) * | 2020-08-31 | 2020-11-27 | 中国矿业大学 | Coal slime drying treatment device |
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Application publication date: 20200324 |