CN216511595U - Reclaimed water sludge blending system - Google Patents
Reclaimed water sludge blending system Download PDFInfo
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- CN216511595U CN216511595U CN202122586863.XU CN202122586863U CN216511595U CN 216511595 U CN216511595 U CN 216511595U CN 202122586863 U CN202122586863 U CN 202122586863U CN 216511595 U CN216511595 U CN 216511595U
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Abstract
The utility model relates to a reclaimed water sludge blending system which comprises a hopper, a conveying device and a fuel conveying belt. Compared with the prior art, the utility model skillfully realizes the reutilization of reclaimed water sludge by adding the hopper and the conveying device by utilizing the existing fuel conveying belt in the power plant, fully exerts the latent heat of the sludge, avoids the environmental protection risk of sludge outward transportation, saves the cost generated by sludge outward transportation, can timely adjust the mixing proportion according to the combustion condition, does not influence the safety of the boiler, ensures the economic performance of the boiler, and has good practicability.
Description
Technical Field
The utility model relates to the technical field of thermal power generation, in particular to a reclaimed water sludge blending system.
Background
For example, chinese patent CN101832623B discloses a preheating system of a thermal power plant, which uses the principle that an evaporator of a water source heat pump air conditioning unit cools and a condenser heats to form two water systems to respectively heat water flowing out of a condenser and recool cooling water flowing out of a cooling tower circulating water pump. The two water systems are respectively operated, so that the combustion of coal can be reduced and the pollution is reduced in the preheating system. And the power generation efficiency can be improved by re-cooling the cooling water system.
In order to save water resources and achieve the purpose of environmental protection, the thermal power plant uses urban reclaimed water as a production water source, but when the quality of the reclaimed water cannot meet the requirement of the power plant on water consumption, advanced treatment needs to be performed on sewage. The existing intermediate water advanced treatment process comprises the following steps: the urban water is treated by coagulation (lime), filtered, and then added with acid and sterilized. The reclaimed water treated by the steps can be used as the production water.
However, the production water obtained in the steps can generate sludge, the water content of the lime sludge after filter pressing is about 35%, and the low calorific value is about 1000 KCal/kg. The other main components are CaCO3 and Mg (OH)2, and the Cl-content is normal. The part of sludge is usually treated by the way of outward transportation by underwriters, which not only generates additional treatment cost, but also may generate the risk of environmental source tracing and liability due to illegal treatment by underwriters.
Therefore, in the field of thermal power generation, a solution capable of effectively treating reclaimed water sludge is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a reclaimed water sludge blending system, which solves the problem of how to treat reclaimed water sludge in a thermal power plant.
The utility model provides a reclaimed water sludge blending system, which comprises:
the hopper is used for storing reclaimed water sludge;
the fuel conveying belt is used for conveying fuel to the boiler for combustion;
the feeding end of the conveying device is communicated with the hopper, and the discharging end of the conveying device extends to the position above the fuel conveying belt and is used for conveying reclaimed water sludge to the fuel conveying belt so that the reclaimed water sludge and the fuel are mixed and combusted in the boiler.
Preferably, the conveying device comprises a horizontal conveyor and an inclined conveyor, wherein the feeding end of the horizontal conveyor is communicated with the hopper, the discharging end of the horizontal conveyor is communicated with the feeding end of the inclined conveyor, the conveying direction of the inclined conveyor is obliquely arranged, and the discharging end of the inclined conveyor is positioned above the fuel conveying belt.
Preferably, the horizontal conveyor and the inclined conveyor are both screw conveyors.
Preferably, the horizontal conveyor comprises a first pipeline, a first helical blade and a first motor, wherein the first pipeline is communicated with the hopper, and one end of the first pipeline is a discharge end of the horizontal conveyor; the first helical blade is rotatably arranged in the first pipeline along the extending direction of the first pipeline; the first motor is arranged on the first pipeline, and the rotating end of the first motor is in transmission connection with the first helical blade.
Preferably, the first pipeline is located below the hopper, the first motor is located at one end of the first pipeline, which is far away from the inclined conveyor, and the rotating end of the first motor extends into the first pipeline and is coaxially connected with one end of the first helical blade.
Preferably, the inclined conveyor comprises a second pipeline, a second helical blade and a second motor, wherein the two ends of the second pipeline are respectively a feeding end and a discharging end of the inclined conveyor, and the second pipeline extends obliquely upwards; the second helical blade is rotatably arranged in the second pipeline along the extending direction of the second pipeline; the second motor is arranged on the second pipeline, and the rotating end of the second motor is in transmission connection with the second helical blade.
Preferably, the feed end of the second conduit is located below the discharge end of the first conduit.
Preferably, the inclined conveyor further comprises a discharge pipeline, one end of the discharge pipeline is communicated with one end of the second pipeline, which is away from the horizontal conveyor, and the other end of the discharge pipeline extends downwards and faces the conveying surface of the fuel conveying belt.
Preferably, the second motor is located at an end of the second pipe facing away from the horizontal conveyor, and a rotating end of the second motor extends into the second pipe and is coaxially connected with an end of the second helical blade.
Preferably, still include the weather enclosure, the weather enclosure is installed above the hopper.
The utility model provides a reclaimed water sludge blending system, which can store reclaimed water sludge in a hopper, convey the reclaimed water sludge to a fuel conveying belt through a conveying device, and convey the reclaimed water sludge and fuels such as coal required by power generation to a boiler for combustion by the fuel conveying belt, so that the treatment of the reclaimed water sludge is realized, and simultaneously, the blending of the reclaimed water sludge in different proportions in various occasions such as a coal bunker or a coal yard stockpile can be realized.
Compared with the prior art, the utility model utilizes the existing fuel conveying belt in the power plant, skillfully realizes the reutilization of reclaimed water sludge by adding the hopper and the conveying device, fully exerts the latent heat of the sludge, avoids the environmental protection risk of sludge outward transportation, saves the cost generated by sludge outward transportation, can timely adjust the mixing proportion according to the combustion condition by artificially adjusting the conveying speed of the conveying device, does not influence the safety of the boiler, ensures the economic performance of the boiler, and has good practicability.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a reclaimed water sludge blending system provided by the utility model.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the utility model and together with the description, serve to explain the principles of the utility model and not to limit the scope of the utility model.
Referring to fig. 1, the present invention provides an embodiment of a reclaimed water sludge blending system, which includes a hopper 1, a conveying device 2, and a fuel conveying belt 3. The hopper 1 is used for storing reclaimed water sludge, the feeding end of the conveying device 2 is communicated with the hopper 1, and the fuel conveying belt 3 is positioned below the discharging end of the conveying device 2 and used for conveying fuel for power generation and receiving the reclaimed water sludge conveyed by the conveying device 2.
The utility model provides a reclaimed water sludge blending system, which can store reclaimed water sludge in a hopper 1, convey the reclaimed water sludge to a fuel conveying belt 3 through a conveying device 2, and convey the reclaimed water sludge and fuels such as coal required by power generation to a boiler for combustion by the fuel conveying belt 3, thereby realizing the treatment of the reclaimed water sludge. The blending ratio can be adjusted by adjusting the conveying speed of the conveying device 2. In addition, the reclaimed water sludge blending system can also blend reclaimed water sludge in different proportions on various occasions such as coal bunker or coal yard stockings.
The above-described respective components will be described in detail below.
The hopper 1 in this embodiment is fixedly installed on the ground, and the opening thereof is located at the top, so that the reclaimed water sludge can be periodically thrown into the hopper 1 by a loader.
As a preferred embodiment, the conveying device 2 in the present embodiment includes a horizontal conveyor 21 and an inclined conveyor 22. The feeding end of the horizontal conveyor 21 is communicated with the hopper 1, the discharging end of the horizontal conveyor 21 is communicated with the feeding end of the inclined conveyor 22, the conveying direction of the inclined conveyor 22 is obliquely arranged, and the discharging end of the inclined conveyor 22 is positioned above the fuel conveying belt 3. Since the fuel transfer belt 3 may be an existing transfer belt for supplying fuel in a factory, and the hopper 1 and the transfer device 2 are installed at a later stage, there may be a height difference between the hopper 1 and the fuel transfer belt 3. The height difference can be eliminated by dividing the conveying device 2 into the horizontal conveyor 21 and the inclined conveyor 22, so that the reclaimed water sludge in the hopper 1 can reach any distance and height.
As a preferred embodiment, both the horizontal conveyor 21 and the inclined conveyor 22 in this embodiment are screw conveyors. In practical application, other devices with feeding function can be used as the conveying device 2.
The specific structures of the horizontal conveyor 21 and the inclined conveyor 22 in this embodiment will be described in more detail below, and in actual implementation, the structures of the horizontal conveyor 21 and the inclined conveyor 22 may be slightly different from those in this embodiment.
As a preferred embodiment, the horizontal conveyor 21 in the present embodiment includes a first pipe 211, a first screw blade 212, and a first motor 213. Wherein the first pipeline 211 is communicated with the hopper 1, and one end of the first pipeline 211 is a discharge end of the horizontal conveyor 21. The first helical blade 212 is rotatably installed in the first pipe 211 in an extending direction of the first pipe 211. The first motor 213 is installed on the first pipe 211, the rotating end of the first motor 213 is drivingly connected with the first helical blade 212, and the first motor 213 is electrically connected with the k. After the reclaimed water sludge enters the first pipeline 211, the first helical blade 212 is driven to rotate by the first motor 213, so that the sludge can be conveyed to the inclined conveyor 22.
Specifically, the first duct 211 in this embodiment is located below the hopper 1, and has a length corresponding to the width of the hopper 1. The feeding end of the first pipe 211 is the feeding end of the whole conveying device 2, and may be one end of the first pipe 211 or an opening opened on the side wall of the first pipe 211. In this embodiment, since the first pipe 211 is located below the hopper 1, the opening of the side wall of the first pipe 211 preferably extends in the longitudinal direction of the first pipe 211 and communicates with the hopper 1 above, so that sludge vertically and uniformly falls into the first pipe 211, the conveying speed is increased, and the risk of clogging is reduced.
The first helical blade 212 in this embodiment is a shaftless helical blade, so that the sludge can move more smoothly in the first pipe 211.
The first motor 213 in this embodiment is located at an end of the first pipe 211 facing away from the oblique conveyor 22, and a rotating end of the first motor 213 extends into the first pipe 211 and is coaxially connected to an end of the first helical blade 212. Meanwhile, the first motor 213 in this embodiment is frequency conversion controlled, and other types of motors such as a stepping motor can be used as the first motor 213 in practical application, so as to meet the requirement of adjusting the conveying speed. Further, the first motor 213 may be mounted at another position, and connected to the first helical blade 212 through a transmission component such as a gear.
As a preferred embodiment, the oblique conveyor 22 in the present embodiment includes a second pipe 221, a second screw blade 222, and a second motor 223. Wherein the two ends of the second pipe 221 are respectively a feed end and a discharge end of the inclined conveyor 22, and the second pipe 221 extends obliquely upward. The second helical blade 222 is rotatably installed in the second pipe 221 in the extending direction of the second pipe 221. The second motor 223 is installed on the second pipe 221, and the rotating end of the second motor 223 is in transmission connection with the second helical blade 222. The operation principle thereof is the same as that of the horizontal conveyor 21.
One end of the second pipeline 221 in this embodiment is a feeding end and is communicated with a discharging end of the first pipeline 211, the first pipeline 211 is inclined upward, the inclination angle of the first pipeline is 30 ° in this embodiment, so that the other end serving as the discharging end extends to the upper side of the fuel conveying belt 3, and the inclination angle of the first pipeline can be flexibly adjusted as required in practice. Meanwhile, the end of the second pipe 221 facing away from the first pipe 211 is closed, and an opening as a discharge end is opened on the circumferential surface in the vicinity of the end, the opening facing the fuel conveyer belt 3.
In addition, preferably, the feeding end of the second pipeline 221 in this embodiment is located below the discharging end of the first pipeline 211, so that the material at the joint can completely fall into the second pipeline 221 due to gravity, and a dead angle capable of accumulating the material is avoided.
Likewise, the second helical blade 222 in this embodiment is also a shaftless helical blade to further reduce the possibility of sludge plugging.
Similarly to the horizontal conveyor 21, the second motor 223 in this embodiment is located at an end of the second pipe 221 facing away from the horizontal conveyor 21, and a rotating end of the second motor 223 extends into the second pipe 221 and is coaxially connected to an end of the second helical blade 222. The second motor 223 is also a variable frequency motor, and can be replaced by other motors to meet the requirement of adjusting the conveying speed. The second motor 223 may be attached to another position, and may be connected to the second helical blade 222 through a transmission component such as a gear.
The present invention also provides a preferred embodiment wherein the intermediate water sludge dosing system heavy inclined conveyor 22 further comprises a discharge conduit 224. One end of the discharge pipe 224 communicates with one end of the second pipe 221 facing away from the horizontal conveyor 21, and the other end of the discharge pipe 224 extends downward and toward the conveying surface of the fuel conveyor belt 3. The discharge pipe 224 can further control the flow direction of the sludge, shorten the floating time of the sludge in the air before the sludge falls to the fuel conveying belt 3, and prevent the sludge from being blown away.
The fuel conveying belt 3 in this embodiment is an existing belt for conveying fuel such as coal in a factory building, and may be communicated with a combustion chamber of a boiler, or with various fields such as a bunker, a stockyard, and the like. The fuel transfer belt 3 in this embodiment is provided in the transfer station 100.
As a preferred embodiment, the reclaimed water sludge blending system in this embodiment further includes a PLC controller (not shown in the figure), which is electrically connected to the conveying device 2 and is used for controlling the conveying speed of the conveyor to adjust the blending ratio. Specifically, it is connected to a first motor 213 electrically connected to the horizontal conveyor 21 and a second motor 223 electrically connected to the inclined conveyor 22 to control the conveying speed of the conveying device 2, thereby controlling the blending ratio of the water sludge. The PLC control mode has the advantages of high reliability, strong anti-interference capability, strong applicability, small assembly workload, convenient maintenance, easy modification and the like. Other control schemes may be used in practice.
The utility model also provides a preferable embodiment, the reclaimed water sludge blending system further comprises a rain-proof shed 4, and the rain-proof shed 4 is arranged above the hopper 1. To facilitate the operation of the loader, the hopper 1 can optionally be positioned outdoors with the conveyor 2 extending into the transfer station 100. And set up weather enclosure 4 this moment, weather enclosure 4 covers the opening of hopper 1, alright in order to block the rainwater and enter into hopper 1, change the water content of normal water mud.
The utility model provides a reclaimed water sludge blending system, which can store reclaimed water sludge in a hopper 1, convey the reclaimed water sludge to a fuel conveying belt 3 through a conveying device 2, and convey the reclaimed water sludge and fuels such as coal required by power generation to a boiler for combustion by the fuel conveying belt 3, thereby realizing the treatment of the reclaimed water sludge. The conveying speed of the conveying device 2 can be controlled by the PLC controller to adjust the mixing proportion of the reclaimed water sludge and the fuel, so that the combustion effect is prevented from being influenced or danger is prevented from occurring due to improper proportion of the reclaimed water sludge. Meanwhile, the reclaimed water sludge can be mixed in different proportions in various occasions such as a coal bunker or a coal yard stockpile and the like.
Compared with the prior art, the utility model skillfully realizes the reutilization of reclaimed water sludge by utilizing the existing fuel conveying belt 3 in a power plant and adding the hopper 1 and the conveying device 2, fully exerts the latent heat of the sludge, avoids the environmental protection risk of sludge outward transportation, saves the cost generated by sludge outward transportation, can timely adjust the mixing proportion according to the combustion condition, does not influence the safety of a boiler, ensures the economic performance of the boiler, and has good practicability.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. A reclaimed water sludge blending system, comprising:
the hopper is used for storing reclaimed water sludge;
the fuel conveying belt is used for conveying fuel to the boiler for combustion;
the feeding end of the conveying device is communicated with the hopper, and the discharging end of the conveying device extends to the position above the fuel conveying belt and is used for conveying reclaimed water sludge onto the fuel conveying belt so that the reclaimed water sludge and the fuel are mixed and combusted in the boiler.
2. The reclaimed water sludge blending and distributing system according to claim 1, wherein the conveying device comprises a horizontal conveyor and an inclined conveyor, a feeding end of the horizontal conveyor is communicated with the hopper, a discharging end of the horizontal conveyor is communicated with a feeding end of the inclined conveyor, a conveying direction of the inclined conveyor is obliquely arranged, and a discharging end of the inclined conveyor is positioned above the fuel conveying belt.
3. The reclaimed water sludge dosing system of claim 2 wherein the horizontal conveyor and the inclined conveyor are both screw conveyors.
4. The reclaimed water sludge blending and distributing system of claim 3, wherein the horizontal conveyor comprises a first pipeline, a first helical blade and a first motor, wherein the first pipeline is communicated with the hopper, and one end of the first pipeline is a discharge end of the horizontal conveyor; the first helical blade is rotatably arranged in the first pipeline along the extending direction of the first pipeline; the first motor is arranged on the first pipeline, and the rotating end of the first motor is in transmission connection with the first helical blade.
5. The reclaimed water sludge dosing system according to claim 4, wherein the first pipe is located below the hopper, the first motor is located at an end of the first pipe facing away from the inclined conveyor, and a rotating end of the first motor extends into the first pipe and is coaxially connected to an end of the first helical blade.
6. The reclaimed water sludge blending system of claim 5, wherein the inclined conveyor comprises a second pipe, a second helical blade and a second motor, wherein the two ends of the second pipe are respectively a feed end and a discharge end of the inclined conveyor, and the second pipe extends obliquely upwards; the second helical blade is rotatably arranged in the second pipeline along the extending direction of the second pipeline; the second motor is arranged on the second pipeline, and the rotating end of the second motor is in transmission connection with the second helical blade.
7. The reclaimed water sludge dosing system of claim 6 wherein the feed end of the second conduit is positioned below the discharge end of the first conduit.
8. The reclaimed water sludge blending system according to claim 6, wherein the inclined conveyor further comprises a discharge pipe, one end of the discharge pipe is communicated with one end of the second pipe, which is away from the horizontal conveyor, and the other end of the discharge pipe extends downwards and faces the conveying surface of the fuel conveying belt.
9. The reclaimed water sludge dosing system according to claim 8, wherein the second motor is located at an end of the second pipe facing away from the horizontal conveyor, a rotating end of the second motor extending into the second pipe and coaxially connecting an end of the second helical blade.
10. The reclaimed water sludge blending and distributing system according to any one of claims 1 to 9, further comprising a rain-proof shed, wherein the rain-proof shed is installed above the hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586863.XU CN216511595U (en) | 2021-10-26 | 2021-10-26 | Reclaimed water sludge blending system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586863.XU CN216511595U (en) | 2021-10-26 | 2021-10-26 | Reclaimed water sludge blending system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216511595U true CN216511595U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122586863.XU Active CN216511595U (en) | 2021-10-26 | 2021-10-26 | Reclaimed water sludge blending system |
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|---|---|
| CN (1) | CN216511595U (en) |
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2021
- 2021-10-26 CN CN202122586863.XU patent/CN216511595U/en active Active
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