CN110713334A - Roller dryer based on heat pump drying - Google Patents
Roller dryer based on heat pump drying Download PDFInfo
- Publication number
- CN110713334A CN110713334A CN201810667090.8A CN201810667090A CN110713334A CN 110713334 A CN110713334 A CN 110713334A CN 201810667090 A CN201810667090 A CN 201810667090A CN 110713334 A CN110713334 A CN 110713334A
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- air inlet
- heat pump
- roller
- fisheye
- main pipe
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- 238000001035 drying Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 abstract description 24
- 235000011837 pasties Nutrition 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 239000010865 sewage Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Images
Classifications
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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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a heat pump drying-based roller dryer, which aims to solve the technical problem that the pasty sludge, the bonded sludge and the sludge difficult to ventilate cannot be sufficiently dried in a drying box in the prior art and comprises a roller, a rotary driving mechanism, an air inlet main pipe and an air inlet branch pipe. One end of the roller is sealed by a sealing plate, and the other end of the roller is open. One end of the air inlet main pipe is fixedly arranged in the bearing inner ring of the sealing plate, and the other end of the air inlet main pipe is connected with a hot air exhaust port of the heat pump dryer. The multiple groups of air inlet branch pipes are arranged in a line along the air inlet main pipe, and each group of air inlet branch pipes consists of three fisheye air inlet pipes which are vertically connected with the air inlet main pipe. The hot dry air exhausted by the heat pump dryer enters the air inlet main pipe and is uniformly diffused into the wet mud through the fisheye air inlet pipe. The rotatory wet mud that drives of cylinder rolls, makes dry mud layer not hard up, raises, whereabouts, then mixes with wet mud again, along with the roll of cylinder and wet mud moisture constantly discharge, the mud layer becomes more loose, more does benefit to penetrating through of hot dry-blast.
Description
Technical Field
The invention relates to the technical field of sludge treatment equipment, in particular to a dryer for drying sludge and similar materials.
Background
In the sewage treatment process, the sludge treatment is always a concern of the industry, the activated sludge process is a treatment method adopted by 90% of sewage treatment plants in the world at present, a large amount of sludge and sludge with high yield and high water content are generated by the activated sludge process, the activated sludge process is inconvenient in the processes of storage, transportation, loading and unloading and the like, and high potential environmental safety risk and hidden danger exist, so the drying treatment of the sludge is imperative.
In principle, the sludge drying treatment process should follow the principle of decrement-innocuity-resource utilization. Namely, the primary task of the sludge drying treatment is reduction, so that the subsequent transportation cost and disposal cost are reduced. The link capable of effectively realizing sludge reduction mainly comprises a sewage treatment link, and the generation of sludge is reduced through process control in the sewage treatment process; in the sludge dewatering link, the agent and the dewatering mode are improved, so that the enclosure content of the dewatered sludge is improved, and the sludge amount is reduced.
Drying equipment such as large-scale roll drying-machine and heat pump drying-machine can once only dry to the finished product with the mud of 90% water content, and these machines are to the filter cake that the preliminary dehydration of plate and frame filter press formed, and the stoving effect is obvious, and to the thin paste mud type of concentration, the preliminary dehydration of belt filter press formation, the stoving effect is relatively poor, and the leading cause is: the workbin of splendid attire mud is established ties on the hot endless wind way of heat pump stoving, and the stoving in-process, the workbin is in a static state all the time, and the mud layer can't roll, and hot dry air can't pierce through thick mud layer, leads to inside the drying of mud not dry.
Disclosure of Invention
The invention aims to provide drying equipment which is simple in structure, convenient to use and capable of fully drying sludge.
In order to achieve the purpose, the technical scheme of the invention is as follows:
drum dryer based on heat pump stoving includes:
a drum horizontally placed in the heat pump dryer; one end of the roller is sealed by a sealing plate, and the other end of the roller is open;
the rotary driving mechanism drives the roller to axially rotate;
a main air inlet pipe parallel to the horizontal rotation axis of the drum; one end of the air inlet main pipe is inserted from the opening of the roller and is fixedly arranged in the bearing inner ring of the sealing plate; the other end of the air inlet main pipe is connected with a hot air outlet of the heat pump dryer;
an intake manifold located inside the drum; the plurality of groups of air inlet branch pipes are arranged in a line along the air inlet main pipe, and the arrangement distance of the air inlet branch pipes is gradually reduced from the inner part of the roller to the opening; each group of air inlet branch pipes consists of three fisheye air inlet pipes, and each fisheye air inlet pipe is vertically connected with the air inlet main pipe; the included angle formed between the fisheye air inlet pipe positioned in the middle and the fisheye air inlet pipes positioned at the two sides is 40-50 degrees.
When the drum in the drum dryer rotates, the main air inlet pipe and the branch air inlet pipe are kept in place. The hot dry air exhausted by the heat pump dryer enters the air inlet main pipe and is uniformly diffused into the wet mud through the fisheye air inlet pipe. The rotatory wet mud that drives of cylinder rolls, makes dry mud layer not hard up, raises, whereabouts, then mixes with wet mud again, along with the roll of cylinder and wet mud moisture constantly discharge, the mud layer becomes more loose, more does benefit to penetrating through of hot dry-blast. Moreover, the fixed fisheye air inlet pipe can cut and break the pasty wet mud, so that the pasty wet mud is soft and breathable.
Furthermore, a plurality of groups of guide assemblies are arrayed on the circular inner wall of the roller at equal angles; each set of guide assemblies is made up of several guide strips in an equidistant array along the horizontal rotation axis of the drum.
The guide strip is inserted into the wet mud, and the wet mud is stirred in a rotating mode and carried to be lifted. Wet mud is raised to the cylinder top and is dried with the steam contact of come-up, then falls down by the influence of gravity, mixes the back with the broken wet mud of being cut by the fish eye intake pipe, and then raises along with the guide strip. The guide strip is matched with the fisheye air inlet pipe, so that the original pasty wet mud becomes softer and breathable, the penetration of hot dry air is facilitated, and the drying speed is increased.
Furthermore, the fisheye air inlet pipe is of a flat structure, and the flat surface is parallel to the side end of the roller.
The narrow edge of the fisheye air inlet pipe has small resistance to the sludge, and the power consumption required by the rolling of the roller is reduced.
Furthermore, a plurality of air outlets are formed in two flat surfaces of the fisheye air inlet pipe.
Further, the edge of the air outlet corresponding to the air inlet main pipe protrudes outwards to form a cover plate.
Mud is drawn earlier to outside convex apron, can prevent to cut in mud gets into the gas outlet, avoids mud to block up this gas outlet.
Further, an included angle formed between the fisheye air inlet pipe positioned in the middle and the fisheye air inlet pipes positioned at two sides is 45 degrees.
Further, the air inlet main pipe is connected with a hot air outlet dried by the heat pump through a hose.
Furthermore, a bearing is installed at the position, close to the opening, of the air inlet main pipe, and a supporting rod fixedly connected with the inner circular wall of the roller is fixedly arranged on the outer ring of the bearing.
Furthermore, the rotary driving mechanism mainly comprises a motor, a speed reducer, a gear ring pair, a diaphragm and a riding wheel, wherein a large gear ring and a diaphragm in the gear ring pair are sleeved on the drum body of the drum, a small gear ring in the gear ring pair is connected with a driving shaft of the speed reducer, the riding wheel is arranged on a support and used for supporting the diaphragm, and the idler wheel ensures the stability of the drum body.
The motor drives the speed reducer to transmit to the gear ring pair, so that the static roller body starts to rotate.
Further, a support frame used for supporting the air inlet main pipe and keeping the air inlet main pipe in a horizontal state is arranged on the support.
Compared with the prior art, the invention has the beneficial effects that: 1. the current situation that the pasty wet mud is airtight is solved, so that the wet mud is easier to ventilate and dry; the roller is effectively utilized for drying in a rolling state, so that the thin sludge is rolled, cut and raised to be loose, and hot and dry gas can more effectively permeate a sludge layer to achieve the aim of quick drying; 2. the hot dry air floats after permeating into the wet mud, then the hot air carrying the moisture of the wet mud is discharged from the opening of the roller, the discharged hot air enters the hot dry air pipeline after being dehumidified by the dehumidification equipment in the heat pump dryer, and the hot dry air is heated again and then circulates to the inside of the roller, so that the energy conservation and emission reduction are realized.
Drawings
In order to more clearly illustrate the technical solutions of the prior art and the embodiments of the present invention, the drawings used in the description of the prior art and the embodiments will be briefly described below.
Fig. 1 is a front view of a drum dryer disclosed in the embodiment;
FIG. 2 is a side view of the tumble dryer disclosed in the examples;
FIG. 3 is a schematic structural view of a drum disclosed in the embodiment;
FIG. 4 is a schematic structural view of a drum disclosed in the embodiment;
fig. 5 is an enlarged schematic view at C in fig. 4.
Detailed Description
The technical solution of the present invention is further explained below with reference to the accompanying drawings.
Shown in figures 1 and 2 is a drum dryer which comprises a drum 1, a rotary driving mechanism, an air inlet main pipe 2, an air inlet branch pipe and a guide assembly, and is placed in a traditional heat pump drying room to replace other sludge drying material box structures when in use. Or can be in butt joint with a hot air drying heat source in an independent mode to form other forms of roller drying equipment.
The drum is horizontally placed in the heat pump dryer, and referring to fig. 3, one end of the drum is closed by a closing plate 4, and the other end is open.
The rotary driving mechanism drives the roller to axially rotate and mainly comprises a motor 5, a speed reducer 6, a gear ring pair 7, a diaphragm 8 and a riding wheel 9, wherein a large gear ring and a diaphragm in the gear ring pair are sleeved on the roller body, a small gear ring in the gear ring pair is connected with a driving shaft of the speed reducer, and the motor drives the speed reducer to transmit to the gear ring pair so as to enable the static roller body to start rotating. The riding wheel is arranged on the support 10 and used for supporting the aperture, and the idler wheels ensure the stability of the roller body.
Referring to fig. 3, the air inlet main pipe is parallel to the horizontal rotation axis of the drum, one end of the air inlet main pipe is inserted into the opening of the drum and is fixedly arranged in the bearing inner ring of the sealing plate, and the other end of the air inlet main pipe is connected with the hot air outlet 14 of the heat pump dryer through a hose 11. The air inlet main pipe is provided with a bearing 12 near the opening, and a support rod 13 fixedly connected with the inner circular wall of the roller is fixedly arranged on the outer ring of the bearing.
The support is provided with a support frame, and the support rod and the support frame are used for supporting the air inlet main pipe and keeping the air inlet main pipe in a horizontal state.
The air inlet branch pipe is positioned in the roller. The multiple groups of air inlet branch pipes are arranged in a line along the air inlet main pipe, and the arrangement distance of the air inlet branch pipes is gradually reduced from the inner part of the roller to the opening; each group of air inlet branch pipes consists of three fisheye air inlet pipes a, and each fisheye air inlet pipe is vertically connected with the air inlet main pipe; the fisheye air inlet pipe in the middle and the fisheye air inlet pipes on the two sides form an included angle of 45 degrees.
Referring to fig. 4, the fisheye air inlet pipe is of a flat structure, and the flat surface is parallel to the side end of the roller. Referring to fig. 5, a plurality of air outlets a1 are formed on two flat surfaces of the fisheye air inlet pipe, and the edges of the air outlets corresponding to the air inlet main pipe protrude outwards to form a cover plate a 2.
The plurality of groups of guide assemblies are arrayed on the circular inner wall of the roller at equal angles; each set of guide assemblies is made up of several guide strips b, which are arranged in an equidistant array along the horizontal rotation axis of the drum.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Roller dryer based on heat pump stoving, its characterized in that includes:
a drum horizontally placed in the heat pump dryer; one end of the roller is sealed by a sealing plate, and the other end of the roller is open;
the rotary driving mechanism drives the roller to axially rotate;
a main air inlet pipe parallel to the horizontal rotation axis of the drum; one end of the air inlet main pipe is inserted from the opening of the roller and is fixedly arranged in the bearing inner ring of the sealing plate; the other end of the air inlet main pipe is connected with a hot air outlet of the heat pump dryer;
an intake manifold located inside the drum; the plurality of groups of air inlet branch pipes are arranged in a line along the air inlet main pipe, and the arrangement distance of the air inlet branch pipes is gradually reduced from the inner part of the roller to the opening; each group of air inlet branch pipes consists of three fisheye air inlet pipes, and each fisheye air inlet pipe is vertically connected with the air inlet main pipe; the included angle formed between the fisheye air inlet pipe positioned in the middle and the fisheye air inlet pipes positioned at the two sides is 40-50 degrees.
2. The heat pump drying-based tumble dryer according to claim 1, characterized in that there are several groups of guiding assemblies in equiangular array on the circular inner wall of said drum; each set of guide assemblies is made up of several guide strips in an equidistant array along the horizontal rotation axis of the drum.
3. The heat pump drying-based tumble dryer according to claim 2, characterized in that said fisheye air intake duct is of a flat structure, the flat surface being parallel to the side end of said drum.
4. The rotary drum dryer based on heat pump drying of claim 3, characterized in that a plurality of air outlets are arranged on two flat surfaces of the fisheye air inlet pipe.
5. The heat pump drying-based tumble dryer according to claim 4, characterized in that said air outlet protrudes outwards to form a cover plate corresponding to the edge of said air inlet main pipe.
6. The heat pump drying-based tumble dryer according to claim 2 or 5, characterized in that the included angle formed between the fisheye air inlet pipe in the middle and the fisheye air inlet pipes at both sides is 45 °.
7. The heat pump drying-based tumble dryer according to claim 6, characterized in that said air inlet main pipe is connected with said heat pump drying hot air outlet through a hose.
8. The roller dryer based on heat pump drying of claim 7, wherein a bearing is installed on the main air inlet pipe near the opening, and a support rod fixedly connected with the inner circular wall of the roller is fixedly installed on an outer ring of the bearing.
9. The drum dryer based on heat pump drying of claim 8, characterized in that the rotary driving mechanism mainly comprises a motor, a speed reducer, a gear ring pair, a diaphragm and a supporting roller, wherein a large gear ring and a diaphragm in the gear ring pair are sleeved on the drum body of the drum, a small gear ring in the gear ring pair is connected with a driving shaft of the speed reducer, and the supporting roller is mounted on a support for supporting the diaphragm.
10. The heat pump drying-based tumble dryer according to claim 9, characterized in that said support is provided with a support frame for supporting said main intake pipe and keeping it in a horizontal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667090.8A CN110713334A (en) | 2018-06-26 | 2018-06-26 | Roller dryer based on heat pump drying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667090.8A CN110713334A (en) | 2018-06-26 | 2018-06-26 | Roller dryer based on heat pump drying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110713334A true CN110713334A (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810667090.8A Pending CN110713334A (en) | 2018-06-26 | 2018-06-26 | Roller dryer based on heat pump drying |
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| Country | Link |
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| CN (1) | CN110713334A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142616A (en) * | 2006-12-08 | 2008-06-26 | Ngk Insulators Ltd | Method for drying sewage sludge |
| CN206279064U (en) * | 2016-12-16 | 2017-06-27 | 浙江德远化工有限公司 | A kind of horizontal reacting kettle for sludge hydro-thermal reaction |
| CN207243714U (en) * | 2017-08-31 | 2018-04-17 | 义乌市晟蓝新能源科技有限公司 | Multilayer rotary drum heat pump electromagnetic field sludge drier |
| CN210656655U (en) * | 2019-07-10 | 2020-06-02 | 邹丹星 | Solid waste environment-friendly treatment system equipment |
-
2018
- 2018-06-26 CN CN201810667090.8A patent/CN110713334A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142616A (en) * | 2006-12-08 | 2008-06-26 | Ngk Insulators Ltd | Method for drying sewage sludge |
| CN206279064U (en) * | 2016-12-16 | 2017-06-27 | 浙江德远化工有限公司 | A kind of horizontal reacting kettle for sludge hydro-thermal reaction |
| CN207243714U (en) * | 2017-08-31 | 2018-04-17 | 义乌市晟蓝新能源科技有限公司 | Multilayer rotary drum heat pump electromagnetic field sludge drier |
| CN210656655U (en) * | 2019-07-10 | 2020-06-02 | 邹丹星 | Solid waste environment-friendly treatment system equipment |
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