CN210885770U - Heavy metal sludge pretreatment drying device - Google Patents
Heavy metal sludge pretreatment drying device Download PDFInfo
- Publication number
- CN210885770U CN210885770U CN201921621873.9U CN201921621873U CN210885770U CN 210885770 U CN210885770 U CN 210885770U CN 201921621873 U CN201921621873 U CN 201921621873U CN 210885770 U CN210885770 U CN 210885770U
- Authority
- CN
- China
- Prior art keywords
- shell
- heavy metal
- hollow
- heat medium
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a pretreatment drying device for heavy metal sludge, which comprises a shell, wherein the cross section of the shell is in an inverted triangle, three hollow spiral shafts distributed in a delta shape are arranged in the shell, a feed inlet and an exhaust port are arranged at the top of the shell, and a discharge port is arranged at the bottom of the shell; the heating system comprises a heat medium inlet and a heat medium outlet which are arranged at two ends of the hollow spiral shaft, and the heat medium enters the heat medium inlet and returns from the heat medium outlet under the drive of a fan or a pump; the transmission mechanism comprises a speed reduction mechanism and a motor, wherein the speed reduction mechanism and the motor are used for driving the hollow screw shaft to rotate, and the hollow screw shaft comprises a hollow shaft and a spiral blade positioned on the outer ring of the hollow shaft. The device adopts the hollow spiral shaft with the three-axis inverted-triangular arrangement to transfer heat, convey and dry heavy metal sludge, has large contact area and high drying efficiency, saves energy consumption, ensures that a heat medium is not in contact with the heavy metal sludge, mildly and uniformly heats, and effectively reduces the generation of raised dust.
Description
Technical Field
The utility model relates to an environment-friendly device improves design technical field, especially relates to a heavy metal sludge's preliminary treatment drying device.
Background
In the prior art, the sludge containing heavy metals produced by electroplating plants and urban sewage centralized treatment plants has the water content of 70-85%, large volume and large floor area, and the fermentation process emits foul smell and is not beneficial to subsequent harmless treatment, thereby increasing the burden of environmental protection treatment. Therefore, drying and dehydration treatment are needed to further reduce the water content of the sludge to 20-40%, and common filtering equipment cannot realize the purpose due to the limitation of sludge property and equipment function, and needs to be pretreated by a drying means to reduce the water content of the sludge so as to recycle valuable metals and carry out harmless treatment on the sludge in a subsequent recycling manner. After the sludge containing heavy metal is pretreated and dried, the reduction is realized, and the valuable metals in the sludge are recovered through a metallurgical furnace in the follow-up process to create economic benefits.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a heavy metal sludge's preliminary treatment drying device, the cavity screw axis that adopts the triaxial to fall the triangle and arrange conducts heat, carries and dry heavy metal sludge, and area of contact is big, and drying efficiency is high, practices thrift the energy consumption, and the hot-medium does not contact with heavy metal sludge, and gentle even heating effectively reduces the raise dust and produces.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the pretreatment drying device for the heavy metal sludge comprises a shell, wherein the cross section of the shell is in an inverted triangle shape, three hollow spiral shafts distributed in a delta shape are arranged in the shell, a feed inlet and an exhaust outlet are formed in the top of the shell, and a discharge outlet is formed in the bottom of the shell; the heating system comprises a heat medium inlet and a heat medium outlet which are arranged at two ends of the hollow spiral shaft, and the heat medium enters the heat medium inlet and returns from the heat medium outlet under the drive of a fan or a pump; a transmission mechanism; the transmission mechanism comprises a speed reducing mechanism and a motor, wherein the speed reducing mechanism is used for driving the hollow screw shaft to rotate.
Further, the hollow screw shaft as described above includes a hollow shaft and a screw blade located at an outer ring of the hollow shaft.
Further, the helical blades of the hollow shaft as described above are engaged with each other at the upper middle portion in the housing.
Further, the hollow screw shaft as described above is provided with a gear, and a pair of gears located at an upper middle portion of the housing are engaged with each other.
Furthermore, the gear is positioned outside the shell, the hollow spiral shaft is fixed through a shaft sleeve outside the shell, and the bottom of the shell is provided with a support.
Further, the feed inlet and the discharge outlet are respectively positioned at two ends of the hollow spiral shaft.
Furthermore, the exhaust ports are uniformly distributed on the shell, and a temperature measuring sensor is also arranged in the shell.
Further, the heat medium as described above may be heated air or heat transfer oil.
Further, the internal temperature of the case as described above is 80 to 150 ℃.
Compared with the prior art, the beneficial effects of the utility model are that: the device adopts the hollow spiral shaft with the three-axis inverted triangular arrangement to transfer heat, convey and dry heavy metal sludge, has large contact area, high drying efficiency and energy consumption saving, saves energy by more than 15 percent compared with the traditional drying furnace, ensures that a heat medium is not contacted with the heavy metal sludge, mildly and uniformly heats, and effectively reduces the generation of raised dust.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a half sectional view of fig. 1.
The labels in the figures are: 1. a housing; 2. a hollow screw shaft; 3. a gear; 4. a shaft sleeve; 5. a heat medium inlet; 6. a feed inlet; 7. an exhaust port; 8. a discharge port; 9. a thermal medium outlet; 21. a hollow shaft; 22. a helical blade.
Detailed Description
The following detailed description is provided to further explain the technical features and advantages of the present invention by referring to the accompanying drawings in combination with the embodiments.
As shown in the figure 1-2, the utility model relates to a heavy metal sludge pretreatment drying device,
the spiral shaft type spiral feeder comprises a shell 1, wherein the cross section of the shell is in an inverted triangle shape, three hollow spiral shafts 2 distributed in a delta shape are arranged in the shell, the two hollow spiral shafts positioned at the middle upper part in the shell are mutually meshed, the hollow spiral shafts positioned at the bottom of the shell independently rotate, a feeding hole 6 and an exhaust hole 7 are formed in the top of the shell, and a discharging hole 8 is formed in the bottom of the shell; the heating system comprises a heat medium inlet 5 and a heat medium outlet 9 which are arranged at two ends of the hollow spiral shaft, and the heat medium enters the heat medium inlet and returns from the heat medium outlet under the drive of a fan or a pump; a transmission mechanism; the transmission mechanism comprises a speed reducing mechanism and a motor which are used for driving the hollow screw shaft to rotate, a gear 3 is arranged on the hollow screw shaft, and a pair of gears which are positioned at the middle upper part of the shell are mutually meshed. The gear is driven by a speed reducing mechanism and a motor, but the gear transmission mechanism can also be replaced by a chain sprocket transmission mechanism or a belt pulley transmission mechanism.
Further, the hollow screw shaft comprises a hollow shaft 21 and a screw blade 22 positioned at the outer ring of the hollow shaft. The helical blades of the hollow shaft are engaged with each other at the middle upper part in the shell. The gear is positioned outside the shell, the hollow spiral shaft is fixed through a shaft sleeve 4 outside the shell, and a support is arranged at the bottom of the shell.
Furthermore, the feed inlet and the discharge outlet are respectively positioned at two ends of the hollow spiral shaft, the exhaust ports are uniformly distributed on the shell, a temperature measuring sensor is also arranged in the shell, the temperature in the shell is 80-150 ℃, and the heat medium can be heated air or heat transfer oil.
The utility model discloses the device comprises metal casing and three cavity screw axis and attached drive unit. The heavy metal sludge contains 70-80% of water, enters the shell through the feeding hole, is heated and dried through the hollow screw shafts, the three hollow screw shafts are arranged in an inverted triangle shape, has the functions of mixing, drying and material transmission, and is mainly realized by adopting different types of screw blades, such as different screw blocks corresponding to a screw meshing section and a shearing section, and the screw blades are combined for use. The hollow screw shafts are driven by an external speed reducer which is formed by connecting three groups of driving gears which are arranged corresponding to an inverted triangle on the shell, specifically, the gears of two hollow screw shafts positioned at the middle upper part outside the shell are mutually meshed for transmission, the gear on the hollow screw shaft positioned at the bottom of the shell independently rotates, namely two speed reducing mechanisms or two output shafts of the speed reducing mechanisms, gears are arranged on the output shafts to be meshed to transmit power, the heavy metal sludge is moved from the feed inlet to the discharge outlet from top to bottom and from left to right, the heavy metal sludge is dried in the moving process, generated water vapor is discharged from 4 exhaust ports distributed on the upper part of the shell in a staggered arrangement, a heat medium is introduced into the hollow spiral shaft through a heat medium inlet, the heat medium can be high-temperature steam, heat transfer oil and the like, the internal temperature of the device can be kept at 80-150 ℃, and the heat medium can be recycled through an external matched pipeline. The moisture content of the dried heavy metal sludge is 40-50%, and the requirement of the sintering procedure for ingredient feeding moisture is met.
In the device, the fan, the pump, the temperature measuring sensor, the motor, the speed reducer, control software thereof and the like are the prior art or materials, and the technical personnel can directly purchase or order from the market according to the required product model and specification.
The electrical components are electrically connected with an external master controller and industrial electricity, and the master controller can be a conventional known device for controlling a computer and the like.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The present invention is described in detail in the above embodiments, and it should be understood that the described embodiments are not limited to the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (9)
1. The pretreatment drying device for the heavy metal sludge is characterized by comprising a shell, wherein the cross section of the shell is in an inverted triangle shape, three hollow spiral shafts which are distributed in a delta shape are arranged in the shell, a feed inlet and an exhaust outlet are formed in the top of the shell, and a discharge outlet is formed in the bottom of the shell; the heating system comprises a heat medium inlet and a heat medium outlet which are arranged at two ends of the hollow spiral shaft, and the heat medium enters the heat medium inlet and returns from the heat medium outlet under the drive of a fan or a pump; and the transmission mechanism comprises a speed reducing mechanism and a motor which are used for driving the hollow screw shaft to rotate.
2. The pretreatment drying device for heavy metal sludge according to claim 1, wherein the hollow screw shaft comprises a hollow shaft and a screw blade positioned at the outer ring of the hollow shaft.
3. The apparatus for pretreating and drying heavy metal sludge according to claim 2, wherein the helical blades of the hollow shaft are engaged with each other at the middle upper part in the housing.
4. The pretreatment drying device for heavy metal sludge according to claim 3, wherein the hollow screw shaft is provided with a gear, and a pair of gears located at the middle upper part of the housing are meshed with each other.
5. The pretreatment drying device for heavy metal sludge according to claim 4, wherein the gear is positioned outside the shell, the hollow spiral shaft is fixed through a shaft sleeve outside the shell, and a support is arranged at the bottom of the shell.
6. The pretreatment drying device for heavy metal sludge according to claim 5, wherein the feed inlet and the discharge outlet are respectively positioned at two ends of the hollow spiral shaft.
7. The pretreatment drying device for heavy metal sludge according to claim 6, wherein the exhaust ports are uniformly distributed on the shell, and a temperature sensor is further installed in the shell.
8. The device for pretreating and drying heavy metal sludge according to claim 7, wherein the heat medium is heated air or heat transfer oil.
9. The device for pretreating and drying heavy metal sludge according to claim 8, wherein the temperature inside the shell is 80-150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921621873.9U CN210885770U (en) | 2019-09-27 | 2019-09-27 | Heavy metal sludge pretreatment drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921621873.9U CN210885770U (en) | 2019-09-27 | 2019-09-27 | Heavy metal sludge pretreatment drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210885770U true CN210885770U (en) | 2020-06-30 |
Family
ID=71335996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921621873.9U Active CN210885770U (en) | 2019-09-27 | 2019-09-27 | Heavy metal sludge pretreatment drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210885770U (en) |
-
2019
- 2019-09-27 CN CN201921621873.9U patent/CN210885770U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201028950Y (en) | Improved helical drying mechanism | |
| CN205241605U (en) | Hot type solid organic matter pyrolysis furnace in succession | |
| CN205860730U (en) | House refuse Organic substance drying plant | |
| CN103791711A (en) | Conveying drying machine special for garbage slurry | |
| CN200986378Y (en) | Spiral drying mechanism | |
| CN105387703B (en) | Expect degumming device in a kind of refractory ceramic fibre trimming | |
| CN210885770U (en) | Heavy metal sludge pretreatment drying device | |
| CN103759518A (en) | Spiral dryer special for waste mud | |
| CN206018654U (en) | A kind of thoroughly Disposal System of Mud Burning that burns | |
| CN2217206Y (en) | Combination type screw dryer | |
| CN203518469U (en) | Pair-paddle type drying machine | |
| CN107781818A (en) | A kind of waste disposal system | |
| CN203403078U (en) | Automatic scraping plate type animal grease refining machine | |
| CN207299872U (en) | Spiral cylinder dryer | |
| CN206783597U (en) | A kind of multi-functional successively biaxial fluidized bed cracking stove for being used to handle urban waste | |
| CN203555096U (en) | Heat-conductive oil roller roasting machine | |
| CN201280515Y (en) | Steam internal heating type gypsum continual conversion device | |
| CN205228130U (en) | Pottery refractory fiber expects to come unstuck device in paper margin | |
| CN212864520U (en) | Screw propulsion device with high-speed high-heat steam outlet | |
| CN204612397U (en) | A kind of glass shrend material drying unit | |
| CN205607101U (en) | Brown coal pre -heater and system of preheating thereof | |
| CN210663694U (en) | Wireless control solid waste treatment equipment | |
| CN209549668U (en) | Drilling Water basement rock bits solidified body prepares the viscosity reduction drying process device before fired brick | |
| CN211521602U (en) | Two-stage material preparation device for graphite production | |
| CN203360244U (en) | Sludge dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 517000 Chuanlong group, Liangcun village, Huangtian Town, Dongyuan County, Heyuan City, Guangdong Province Patentee after: Guangdong Jinyu Environmental Technology Co.,Ltd. Address before: 517000 Chuanlong group, Liangcun village, Huangtian Town, Dongyuan County, Heyuan City, Guangdong Province Patentee before: GUANGDONG JINYU ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |