CN210367411U - Air preheating type sludge drying equipment - Google Patents
Air preheating type sludge drying equipment Download PDFInfo
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- CN210367411U CN210367411U CN201921260866.0U CN201921260866U CN210367411U CN 210367411 U CN210367411 U CN 210367411U CN 201921260866 U CN201921260866 U CN 201921260866U CN 210367411 U CN210367411 U CN 210367411U
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- air
- fan
- sludge
- cover
- air outlet
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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to an air preheats formula sludge drying equipment, include the support body and install the fan housing on the support body, the uncovered setting in fan housing top and bottom, install the sludge conveyer belt that sets up along left right direction on the support body, sludge conveyer belt sets up in the fan housing lower part, install the uncovered confined fan shroud in fan housing top in the fan housing upper end, air outlet and air intake have been seted up to the fan housing lid, install the air-collecting cover on the air outlet, the fan is installed to the upper end of air-collecting cover, the air outlet of fan is connected with out the tuber pipe, install air condenser on the play tuber pipe, the upper portion of two air-supply lines is provided with the intercommunication pipeline with both intercommunications, install the air-supply line on the communicating pipeline, be equipped with the heating wire in the air-supply line, the air. The air preheating type sludge drying equipment can recover waste heat, and is small in size, reliable in sealing and wide in application occasions.
Description
Technical Field
The utility model relates to an environmental protection equipment field, specific air preheating type sludge drying equipment that says so.
Background
In consideration of environmental protection, sludge generated by treatment of municipal sewage, industrial wastewater and the like needs to be dried to reduce the water content of the sludge, so that the subsequent treatment is facilitated. The sludge treatment technology aims at reduction, harmlessness, recycling and stabilization, and the key point and difficulty is to reduce the water content of the sludge by utilizing the heat drying technology.
At present, similar domestic sludge heat drying devices use electric heating to manufacture high-temperature airflow, and the high-temperature airflow is used for taking away moisture in sludge, so that the effect of reducing the water content of the sludge is achieved. The existing sludge drying equipment has the defects that more electric energy is required to be consumed in the sludge drying process, so that the sludge treatment cost is higher; because the hot air is difficult to penetrate through the multilayer conveyor belt, the sludge drying equipment using the multilayer conveyor belt is large in size, has no prominent effect on the sludge drying effect, is high in manufacturing cost and is not suitable for small-batch production.
Disclosure of Invention
The utility model aims at the above problem to provide an equipment is small, saves electric energy loss's air preheating formula sludge drying equipment.
In order to achieve the above purpose, the utility model relates to an air preheating type sludge drying equipment, its structural feature is: including the support body and install the fan housing on the support body, the uncovered setting in fan housing top and bottom, install the sludge conveying belt that sets up along the left and right sides direction on the support body, sludge conveying belt sets up in the fan housing lower part, install the uncovered fan housing lid that carries out confined in fan housing top in the fan housing upper end, air outlet and air intake have been seted up on the fan housing lid, the air intake is two and sets up the left and right sides at the air outlet respectively, install the wind-collecting cover on the air outlet, the fan is installed to the upper end of wind-collecting cover, the air intake and the wind-collecting cover intercommunication of fan, the air outlet of fan is connected with out the tuber pipe, install air condenser on the play tuber pipe, the upper portion of two air inlet ducts is provided with the intercommunication pipeline with both intercommunications, install the air-supply line on the communicating pipeline. Waste heat recovery is carried out on the air after the sludge is dried, so that the energy consumption of equipment is saved; the sealing of the equipment is reliable, and the leakage of odor in the sludge drying process can be avoided; before the air is heated by the electric heating wire, the air source heat pump is used for preheating, so that the energy loss of electric heating is saved.
The air source heat pump comprises an evaporator and a condenser, wherein the air inlet and the air outlet of the evaporator are connected with the air inlet and the air outlet of the condenser to form a loop, a refrigerant flows in the loop of the evaporator and the loop of the condenser, a compressor and a throttle valve are installed on the loops of the evaporator and the condenser, the condenser is installed in a closed shell, the closed shell is provided with a heat inlet and a heat outlet, and the heat inlet and the heat outlet are communicated with an air inlet pipe and an air outlet pipe through an external connecting pipeline. The air for drying the sludge has two heating processes, firstly the air source heat pump preheats the air, then the electric heating wire electrically heats the air, the air is heated twice to reach the temperature enough for drying the sludge, the electric energy consumption of the electric heating can be saved by using the air source heat pump to preheat the air, and the cost for drying the sludge is saved.
The fan cover is provided with an air-homogenizing pore plate for sealing the air outlet, and the air-homogenizing pore plate is provided with vent holes arranged in an array. The air-distributing pore plate has a certain blocking effect on hot air from the air outlet pipe, so that the hot air at the two ends of the sludge conveying belt is forced to diffuse to the middle area of the sludge conveying belt, the phenomenon that the hot air from the air outlet pipe does not dry the sludge and directly enters the air collecting cover is avoided, and the utilization rate of the hot air is improved.
The bottom of the sludge conveying belt closed fan cover is open, and the left side and the right side of the fan cover are provided with material avoiding channels. Besides the sludge conveying belt and the fan cover are installed at intervals, the sludge conveying belt can be installed at the bottom of the fan cover in a fitting mode, and sludge passes through the avoiding channel, so that the leakage of odor in the working process of the equipment is reduced.
The material avoiding channel comprises a discharge port and a feed port, the discharge port and the feed port are both provided with a wind shielding strip, and the upper end of the wind shielding strip is fixedly connected with the fan cover and the lower end of the wind shielding strip is attached to the sludge conveying belt. On the one hand, the wind shielding strip has a smoothing effect on passing sludge, so that the sludge is uniformly distributed on the sludge conveying belt, and on the other hand, the wind shielding strip separates hot air and odor in the drying chamber, so that the heat overflow and the odor leakage are further prevented.
The top of mud conveyer belt input is equipped with the feeder hopper, and the feeder hopper is installed on the lateral wall of fan housing. The feeding hopper is convenient to install, sludge is convenient to uniformly put in, and a sludge conveying pipe can be installed on the feeding hopper to perform large-batch operation.
Both sides all are provided with the striker plate around the support body, set up on the striker plate with sludge conveying belt assorted suit hole, the suit hole cover is established on sludge conveying belt's side. The striker plate blocks the sludge on the sludge conveying belt in a sludge conveying channel consisting of the two striker plates, and prevents the sludge from deviating from the conveying track to fall off from the sludge conveying belt in the transportation process.
The wind-collecting cover is in a square frustum shape. The air intake at each position in the drying chamber is the same, and the sludge is ensured to be dried uniformly.
The width and the length of the air outlet are adapted to the width and the length of the working surface of the sludge conveying belt. The sludge heating quantity at each position in the drying chamber is ensured to be the same, so that the sludge drying is more uniform.
The air inlet duct is arranged along the width direction of the sludge conveying belt. The hot air is uniformly covered on the sludge, and the effect of more uniform sludge drying is achieved.
Because above-mentioned technical scheme's application is following right the utility model discloses an advantage effect carries out concrete analysis.
The air preheating type sludge drying equipment of the utility model recovers the waste heat of the air after drying the sludge, saves the energy consumption of the equipment and is environment-friendly; the sealing of the equipment is reliable, and the leakage of odor in the sludge drying process can be avoided; the sludge is fully dried in a mode of two-strand high-temperature air convection and sludge impact; before the air is heated by the electric heating wire, the air source heat pump is used for preheating the air, so that the energy loss of electric heating is saved; the air source heat pump is not limited by a field, the equipment volume is small, and the application occasion is wide.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of FIG. 1 taken along line A-A;
FIG. 3 is a schematic diagram of an air source heat pump;
FIG. 4 is a schematic axial view of the wind-collecting cover;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4;
fig. 6 is a schematic structural view of the wind cowl cover.
In the figure: the device comprises a discharge port 1, an air inlet duct 2, an air collecting cover 3, a fan 4, an air cover 5, a frame body 6, an air inlet pipe 7, a feed hopper 8, a baffle plate 9, an air outlet pipe 10, an electric heating wire 11, an air homogenizing pore plate 12, a sludge conveying belt 13, an air source heat pump 14, a throttle valve 15, an evaporator 16, a condenser 17, a compressor 18, a feed inlet 19, an external connecting pipeline 20, an air condenser 21, an air outlet 22, an air inlet 23 and an air cover 24.
Detailed Description
Referring to the attached drawings, the utility model relates to an air preheating type sludge drying device, which comprises a frame body 6 and a fan cover 5 arranged on the frame body 6, wherein the top and the bottom of the fan cover 5 are open, and the fan cover 5 encloses a sludge drying chamber; the frame body 6 is provided with a sludge conveying belt 13 arranged along the left-right direction, the sludge conveying belt 13 is arranged at the lower part of the wind shield 5, and a certain amount of clearance is formed between the sludge conveying belt 13 and the wind shield 5, so that sludge can sufficiently pass through the clearance. The upper end of the fan housing 5 is provided with a fan housing cover 24 for sealing an opening at the top of the fan housing 5, the fan housing cover 24 is provided with an air outlet 22 and an air inlet 23, the air inlet 23 is provided with two air inlets 23 which are respectively arranged at the left side and the right side of the air outlet 22, the air outlet 22 is provided with the fan housing 3, the upper end of the fan housing 3 is provided with a fan 4, the air inlet of the fan 4 is communicated with the fan housing 3, the air outlet of the fan 4 is connected with an air outlet pipe 10, the air outlet pipe 10 is provided with an air condenser 21, the upper parts of the two air inlet channels 2 are provided with a communicating pipeline for communicating the two air inlet channels 2, the communicating pipeline is provided with an air inlet pipe 7, the air inlet pipe 7 is internally provided with an electric heating wire 11, the air inlet pipe 7 is communicated with the air outlet pipe 10 through an external connecting pipeline 20, the fan cover 24 covers the top opening of the fan cover 5.
The air is heated by the heat pump before entering the drying chamber, and then the air with certain temperature is secondarily heated by the heating wire 11 to obtain high-temperature air, so that the electric energy loss of the equipment is saved. High-temperature hot air respectively enters the drying chamber from the air inlet ducts 2 on two sides of the air collecting cover 3, two opposite high-temperature air flows in the drying chamber collide together and blow the sludge, the air after drying the sludge is changed into damp and hot air with a certain temperature, the damp and hot air is recovered by the air collecting cover 3 and is changed into dry air after being processed by the air condenser 21, and then the dry air enters the air source heat pump 14 to recycle the rest heat, so that the energy consumption of equipment is saved.
Referring to fig. 3, the air source heat pump 14 includes an evaporator 16 and a condenser 17, an air inlet and an air outlet of the evaporator 16 are connected to an air inlet and an air outlet of the condenser 17 to form a loop, a refrigerant flows through the loop of the evaporator 16 and the condenser 17, a compressor 18 and a throttle valve 15 are installed on the loop of the evaporator 16 and the condenser 17, the condenser 17 is installed in a closed housing, the closed housing is provided with a heat inlet and a heat outlet, and the heat inlet and the heat outlet are communicated with the air inlet pipe 7 and the air outlet pipe 10 through an external connecting pipe 20. In the present embodiment, dichlorodifluoromethane is used as the refrigerant, the compressor 18 and the throttle valve 15 are respectively installed on the pipelines on different sides, the compressor 18 pressurizes to change the refrigerant from the gaseous state to the liquid state, and the throttle valve 15 releases the pressure to change the refrigerant from the liquid state to the gaseous state. The heat pump works by evaporating the refrigerant in the evaporator 16 to absorb heat from the air, then the refrigerant enters the condenser 17 from the exhaust port of the evaporator 16, the refrigerant is liquefied in the condenser 17 to release heat, at this time, the refrigerant releases heat to heat the air in the external connection pipe 20, and then the liquid refrigerant enters the evaporator 16 from the exhaust port of the condenser 17 to enter the next cycle. The air is heated twice to reach the temperature enough for drying the sludge, the electric energy consumption of electric heating can be saved by using an air source heat pump to preheat the air, and the cost of sludge drying is saved.
The air hood cover 24 is provided with an air-homogenizing pore plate 12 for sealing the air outlet 22, and the air-homogenizing pore plate 12 is provided with vent holes arranged in an array. Referring to fig. 5, the vent holes are uniformly distributed on the air-homogenizing pore plate 12, and play a certain role of blocking the hot air from the air inlet duct 2, so as to force the hot air at the two ends of the sludge conveying belt 13 to diffuse to the middle area of the sludge conveying belt 13, and prevent the hot air from the air outlet pipe 10 from directly entering the air-collecting cover 3 without drying the sludge. The air-homogenizing pore plate 12 ensures that hot air can enter the air-collecting cover 3 more uniformly, ensures that the sludge drying degree at each position is basically the same, and avoids that the hot air from the air outlet pipe 2 directly enters the air-collecting cover 3 without drying the sludge, thereby improving the utilization rate of the hot air.
Referring to the attached drawing 2, the upper conveying surface of the sludge conveying belt 13 is installed to be attached to the bottom of the fan housing 5, the sludge conveying belt 13 seals the bottom opening of the fan housing 5, and material avoiding channels are formed in the left side and the right side of the fan housing 5 to facilitate sludge conveying. The material avoiding channel comprises a discharge port 1 and a feed port 19, the discharge port 1 and the feed port 19 are both provided with a wind shielding strip, and the upper end of the wind shielding strip is fixedly connected with the fan cover 5 and the lower end of the wind shielding strip is attached to the sludge conveying belt 13. The sludge passes through the discharge port 1 and the feed port 19; the weather strip uses the rubber material preparation that has the flexibility, and the weather strip lower part can carry out the slitting, makes it become a door curtain that seals discharge gate 1 or feed inlet 19, and the weather strip plays the effect of smoothing to the mud of process on the one hand, makes mud evenly distributed on sludge conveyer belt 13, reaches the even effect of sludge drying, and on the other hand weather strip will be hot-blast and the foul smell separation in the drying chamber, further prevents thermal overflow and the leakage of foul smell.
A feed hopper 8 is arranged above the input end of the sludge conveying belt 13, and the feed hopper 8 is arranged on the side wall of the fan cover 5. The feed hopper 8 is similar to an inverted right trapezoid, the right-angled waist of the right trapezoid is attached to the fan cover 5, the upper end and the lower end of the feed hopper 8 are open, and the lower end of the feed hopper is open to the conveying surface of the sludge conveying belt 13. The feed hopper of this kind of structure makes things convenient for mud to unify and puts in, and mountable mud conveyer pipe carries out big batch operation on the feed hopper.
Referring to the attached drawing 2, both sides all are provided with striker plate 9 around the support body 6, set up on striker plate 9 with sludge conveyor 13 assorted suit hole, the suit hole cover is established on sludge conveyor 13's side. The striker plates 9 are arranged in two, and the two striker plates 9 are respectively arranged near the front side and the rear side of the sludge conveying belt 13, so that sludge on the sludge conveying belt 13 is blocked in a sludge conveying channel formed by the two striker plates 9, and the sludge is prevented from deviating from a conveying track in the transportation process and falling off from the sludge conveying belt 13.
Referring to the attached drawings 2 and 4, the wind collecting cover 3 is in a square frustum shape, the top and the bottom of the wind collecting cover 3 are open, the bottom of the wind collecting cover 3 is larger than the bottom of the wind collecting cover, so that the air intake at each position in the drying chamber is the same, the sludge is uniformly dried, the wind collecting cover 3 uniformly recovers the damp and hot air, and the fan 4 delivers the damp and hot air to the next hot air circulation process.
The width and the length of the air outlet 22 are adapted to the width and the length of the working surface of the sludge conveying belt 13. The front and back sides of the air outlet 22 are close to the front and back sides of the sludge conveying belt 13, and the left and right sides of the air outlet 22 are close to the left and right sides of the sludge conveying belt 13, so that the sludge in each position in the drying chamber is heated by the same amount, and the sludge is dried more uniformly.
Referring to the attached drawings 1 and 2, the air inlet duct 2 is arranged along the width direction of the sludge conveying belt 13, so that hot air uniformly covers the sludge, and the sludge is dried more uniformly.
The driving force of the air comes from the fan 4 in the air circulation process, when the air circulation process starts, the air is firstly heated to a certain temperature by the air condenser 21 in the external connecting pipeline 20, then the air enters the air inlet pipe 7 and is heated by the heating wire 11 to become high-temperature air, the high-temperature air is distributed to the two air inlet ducts 2 through the communicating pipeline, and then the high-temperature air is discharged into the drying chamber from the bottom of the air inlet ducts 2; at the moment, sludge is fed onto a sludge conveying belt 13 through a feed hopper 8, the sludge on the sludge conveying belt 13 enters an air cover 5 through a feed port 19, two opposite high-temperature air flows in the drying chamber impact together and blow the sludge, the sludge conveying belt 13 continues to move, and the dried sludge is sent out of the drying chamber through a discharge port 1; the air after drying the sludge is changed into damp and hot air with a certain temperature, the damp and hot air is recovered by the air collecting hood 3, the damp and hot air is changed into dry air after being processed by the air condenser 21, and then the dry air enters the external connecting pipeline 20 and is heated by the condenser 21 for next air circulation.
To sum up, the present invention is not limited to the above-mentioned specific embodiments. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications are intended to be within the scope of the present invention.
Claims (10)
1. An air preheating type sludge drying device is characterized in that: comprises a frame body (6) and a fan cover (5) arranged on the frame body (6), the top and the bottom of the fan cover (5) are arranged in an open manner, a sludge conveying belt (13) arranged along the left-right direction is arranged on the frame body (6), the sludge conveying belt (13) is arranged on the lower part of the fan cover (5), a fan cover (24) for sealing the opening of the top of the fan cover (5) is arranged at the upper end of the fan cover (5), an air outlet (22) and an air inlet (23) are arranged on the fan cover (24), the two air inlets (23) are respectively arranged at the left side and the right side of the air outlet (22), a fan collecting cover (3) is arranged on the air outlet (22), a fan (4) is arranged at the upper end of the fan collecting cover (3), the air inlet of the fan (4) is communicated with the fan collecting cover (3), the air outlet, the upper parts of the two air inlet ducts (2) are provided with communicating pipelines which communicate the two air inlet ducts, air inlet pipes (7) are arranged on the communicating pipelines, electric heating wires (11) are arranged in the air inlet pipes (7), the air inlet pipes (7) are communicated with the air outlet pipes (10) through external connecting pipelines (20), and air source heat pumps (14) which heat air in the pipes are arranged on the external connecting pipelines (20).
2. The air preheating type sludge drying apparatus according to claim 1, wherein: the air source heat pump (14) comprises an evaporator (16) and a condenser (17), wherein an air inlet and an air outlet of the evaporator (16) are connected to an air inlet and an air outlet of the condenser (17) to form a loop, a refrigerant flows in the loop of the evaporator (16) and the loop of the condenser (17), a compressor (18) and a throttle valve (15) are installed on the loops of the evaporator (16) and the condenser (17), the condenser (17) is installed in a closed shell, the closed shell is provided with a heat inlet and a heat outlet, and the heat inlet and the heat outlet are communicated with an air inlet pipe (7) and an air outlet pipe (10) through an external connecting pipeline (20).
3. The air preheating type sludge drying apparatus according to claim 1, wherein: the air hood cover (24) is provided with an air-homogenizing pore plate (12) for sealing the air outlet (22), and the air-homogenizing pore plate (12) is provided with vent holes arranged in an array.
4. The air preheating type sludge drying apparatus according to claim 1, wherein: the sludge conveying belt (13) seals an opening at the bottom of the fan cover (5), and material avoiding channels are formed in the left side and the right side of the fan cover (5).
5. The air preheating type sludge drying apparatus according to claim 4, wherein: the material avoiding channel comprises a discharge port (1) and a feed port (19), a wind shielding strip is arranged on the discharge port (1) and the feed port (19), and the upper end of the wind shielding strip is fixedly connected with a wind cover (5) and the lower end of the wind shielding strip is attached to a sludge conveying belt (13).
6. The air preheating type sludge drying apparatus according to claim 1, wherein: the top of mud conveyer belt (13) input is equipped with feeder hopper (8), and feeder hopper (8) are installed on the lateral wall of fan housing (5).
7. The air preheating type sludge drying apparatus according to claim 1, wherein: both sides all are provided with striker plate (9) around support body (6), set up on striker plate (9) with sludge conveyer belt (13) assorted suit hole, the suit hole cover is established on the side of sludge conveyer belt (13).
8. The air preheating type sludge drying apparatus according to claim 1, wherein: the wind collecting cover (3) is in a square frustum shape.
9. The air preheating type sludge drying apparatus according to claim 1, wherein: the width and the length of the air outlet (22) are adapted to the width and the length of the working surface of the sludge conveying belt (13).
10. The air preheating type sludge drying apparatus according to claim 1, wherein: the air inlet duct (2) is arranged along the width direction of the sludge conveying belt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921260866.0U CN210367411U (en) | 2019-08-06 | 2019-08-06 | Air preheating type sludge drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921260866.0U CN210367411U (en) | 2019-08-06 | 2019-08-06 | Air preheating type sludge drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210367411U true CN210367411U (en) | 2020-04-21 |
Family
ID=70249084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921260866.0U Expired - Fee Related CN210367411U (en) | 2019-08-06 | 2019-08-06 | Air preheating type sludge drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210367411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794615A (en) * | 2020-12-18 | 2021-05-14 | 浙江三联环保科技股份有限公司 | Sludge crushing and drying device |
-
2019
- 2019-08-06 CN CN201921260866.0U patent/CN210367411U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794615A (en) * | 2020-12-18 | 2021-05-14 | 浙江三联环保科技股份有限公司 | Sludge crushing and drying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 Termination date: 20210806 |