CN209890469U - Sludge pyrolysis furnace - Google Patents

Abstract

The utility model provides a sludge pyrolysis furnace. Inside vapor circulation structure that is equipped with of mud pyrolysis oven, vapor circulation structure includes: closed microwave pyrolysis stove, water storage box, cooling chamber, vapor pipe, cooling water pipe and electrical unit, wherein, the microwave pyrolysis stove pass through the vapor pipe with the water storage box is connected, the water storage box pass through the cooling water pipe with the cooling chamber is connected, the vapor that mud pyrolysis in-process produced by the pyrolysis stove passes to inside the water storage box, liquid after the vapor liquefaction is arrived by the water storage box suction under electrical unit's control the cooling chamber to realize inside hydrologic cycle, water economy resource.

Description

Sludge pyrolysis furnace

Technical Field

The utility model relates to a sludge pyrolysis furnace technical field particularly, relates to a can realize mud pyrolysis furnace of cooling water circulation.

Background

In recent years, China pays more attention to sewage treatment, the sewage treatment reaches a quite high level, the sludge treatment level needs to be improved, and according to reports, the harmless treatment rate of sludge generated by national sewage treatment plants is 56% by the end of 2014, and the main treatment modes are sanitary landfill, incineration, fertilizer preparation, building material manufacturing and the like. The sludge treatment method in China is relatively laggard, and the sludge treatment mode in China is still mainly buried according to the Chinese environmental yearbook and the statistics of the E20 environmental platform. The proportion of sludge landfill in developed countries is very low, and other sludge disposal modes in China are expected to be improved continuously. In China, sewage treatment is paid more attention in the years, the sewage treatment reaches a quite high level, the sludge treatment level needs to be improved, and according to reports, the harmless treatment rate of sludge generated by national sewage treatment plants is 56 percent by the end of 2014, and the main treatment modes are sanitary landfill, incineration, fertilizer preparation, building material manufacturing and the like. The sludge treatment method in China is relatively laggard, and the sludge treatment mode in China is still mainly buried according to the Chinese environmental yearbook and the statistics of the E20 environmental platform. The proportion of sludge landfill in developed countries is very low, and other sludge disposal modes in China are expected to be improved continuously.

Chinese patent publication No.: CN204509199U discloses an automatic biomass microwave pyrolysis oven, which overcomes the disadvantages of the prior art mentioned above, and solves the problems of high labor intensity and poor working environment, but the device needs a large amount of external water to cool the pyrolysis oven after pyrolysis in the pyrolysis process, so as to reduce the processing period, thus shortening the processing period, saving time, but also wasting water resource, and the water resource is very short at present, and water resource saving is urgent.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a sludge pyrolysis furnace aims at solving the water cooling pyrolysis furnace waste water resource's of passing through the water storage box after the current pyrolysis problem.

In one aspect, the utility model provides a sludge pyrolysis furnace, the inside vapor cyclic utilization structure that is equipped with of sludge pyrolysis furnace, vapor circulation part includes: a closed microwave pyrolysis furnace, a water storage tank, a cooling cavity, a water vapor conduit, a cooling water conduit and an electric control unit,

the microwave pyrolysis oven pass through the vapor pipe with the water storage box is connected, the water storage box pass through the cooling water pipe with the cooling chamber is connected, the vapor that mud pyrolysis in-process produced by the pyrolysis oven reaches inside the water storage box, liquid after the vapor liquefaction is arrived by the suction of water storage box under the control of automatically controlled unit the cooling chamber to realize inside hydrologic cycle, the water economy resource.

Furthermore, in the sludge pyrolysis furnace, a sludge stirring structure and a microwave generator are arranged in the microwave pyrolysis furnace, a pyrolysis rack is arranged outside the microwave pyrolysis furnace, the middle part of the microwave pyrolysis furnace is connected with the oil-gas separation condenser, and the bottom of the microwave pyrolysis furnace is provided with a circle of round holes.

Further, in the above sludge pyrolysis furnace, the sludge stirring structure includes: a stirring shaft and a stirring blade, particularly,

the two ends of the stirring shaft are connected with the interior of the pyrolysis furnace, the stirring blades are arranged on the stirring shaft, and the sludge stirring structure is used for uniformly distributing sludge in the pyrolysis furnace;

the microwave generator is three microwave magnetrons which are arranged on the inner wall of the pyrolysis furnace and used for heating sludge;

the sludge pyrolysis furnace is axially sleeved into the pyrolysis rack, a gap between the sludge pyrolysis furnace and the pyrolysis rack is a cooling cavity, the upper part of the pyrolysis rack is connected with an upper material box, and the lower part of the pyrolysis rack is connected with a lower material box, and the upper material box and the lower material box are used for fixing the microwave pyrolysis furnace, so that the sludge pyrolysis process is completed;

the oil-gas separation condenser is connected with the pyrolysis furnace through an air extraction pipeline and is used for realizing gas-solid separation and recycling oil sludge;

the round hole is a steam outlet hole which is a joint of the pyrolysis furnace and the steam conduit and is used for leading the steam into the water storage tank from the pyrolysis furnace.

Further, in the sludge pyrolysis furnace, the steam guide pipe is arranged at the joint of the circle of the circular hole, the steam guide pipe is funnel-shaped, the tubular part is provided with a control valve for preventing liquid from flowing back, the space of the steam guide pipe is enough for liquefying the steam, the circle of the circular hole is arranged on the outer wall of the pyrolysis furnace, the baffle switch is arranged at the position of the circular hole, and when the temperature in the pyrolysis furnace reaches the temperature generated by the steam, the baffle switch is automatically opened, so that the steam enters the water storage tank after being liquefied through the steam guide pipe.

Furthermore, a water pump is arranged in the sludge pyrolysis machine, the water pump is connected with the electric control unit and the stirring shaft respectively, and the water pump is used for pumping water in the water storage tank into the cooling cavity under the control of the electric control unit.

Compared with the prior art, the beneficial effects of the utility model reside in that, the utility model provides a sludge pyrolysis machine is through being provided with vapor cyclic utilization structure has realized the self-loopa of cooling water to the water resource has been practiced thrift.

Further, the utility model discloses the water vapour pipe that leaks hopper-shaped pipe department space that sets up is enough to make the water vapour liquefaction, and the partial bottom space that leaks hopper-shaped can amasss water for moisture flows into easily in the water storage box.

Further, the utility model discloses the tubule form department of vapor pipe is equipped with a valve, the valve can be controlled water in the water storage box can not flow backwards in the vapor pipe, the moisture unidirectional flow of vapor pipe department makes entire system more stable in this design, and smooth going on.

Further, the utility model discloses the mud pyrolysis oven with vapor pipe connection department sets the round hole into, is favorable to controlling the following that vapor has the direction more the inside flow direction of pyrolysis oven in the vapor pipe.

Furthermore, the utility model discloses a mud pyrolysis oven axial embolias the pyrolysis frame, its clearance is as the cooling chamber. After pyrolysis is accomplished, the action of electrical control unit control contactor, through the water pump with the water suction cooling chamber of water storage box, this design makes cooling speed improve, and duty cycle shortens.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic diagram of a unit structure of a sludge pyrolysis furnace provided by an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1, a sludge pyrolysis furnace according to an embodiment of the present invention includes: pyrolysis oven 6, pyrolysis frame 3, oil-gas separation condenser 10, water pump 17, electronic control unit 16 and water storage box 8, wherein, pyrolysis frame 3 sets up in the pyrolysis oven outside, be used for supporting whole device, pyrolysis oven 6 passes through bleed-off line 14 and connects oil-gas separation condenser 10, oil-gas separation condenser 10 is used for realizing the gas-solid separation, retrieve fatlute again, set up a pipeline switch 14 on bleed-off line 14, in being used for controlling pyrolysis product flow into oil-gas separation condenser 10 according to the condition, (mixing) shaft 5 is connected to electronic control unit 16 one end, be used for providing power for the stirring structure, water pump 17 is connected to the other end, water storage box 8 is connected to the water pump 17 other end, be used for with the inside water suction cooling chamber 12 of water storage box 8, after the area pyrolysis is accomplished, electronic control unit 16 controls water pump 17 effect, make cooling rate. The shape of the reservoir is not limited as will be appreciated by those skilled in the art and may be rectangular, square or cylindrical, as long as it is capable of holding water.

Continuing to refer to fig. 1, be equipped with material loading mouth 1 on the pyrolysis oven 6, it has feed opening 7 to connect down, it has the stirring structure to embed, the stirring structure includes (mixing) shaft 5 and stirring vane 2, inside (mixing) shaft 5 both ends are connected in pyrolysis oven 6, stirring vane 2 sets up at (mixing) shaft 5 periphery, this design is used for evenly arranging the mud in pyrolysis oven 6, be provided with microwave magnetron 4 in the pyrolysis oven 6 wall, this design is according to the microwave principle of generating heat, provide the heat for whole pyrolysis oven 6.

With reference to fig. 1, in order to realize gas-liquid circulation, in this embodiment, a circle of circular holes 20 is uniformly formed in the lower wall of the pyrolysis furnace 6, a steam conduit 13 is disposed at the circular hole 20, a baffle switch 15 is disposed at the middle portion of the pyrolysis furnace 6 and the pyrolysis rack 3, two ends of the steam conduit 13 are connected to the pyrolysis furnace 6 and the water storage tank 8, and the steam conduit is used for guiding steam in the pyrolysis furnace 6 into the water storage tank 8, so that water evaporated from sludge is recovered and utilized, the steam conduit 13 is funnel-shaped and clings to the outer wall of the pyrolysis furnace 6 to prevent substances in the pyrolysis furnace 6 from flowing out, a control valve 19 is disposed at the thin tubular portion of the steam conduit 13, and the control valve 19 is used for controlling water in the water storage tank 8 from flowing back to the steam conduit 13; the round hole 20 is favorable for controlling the water vapor to flow to the inside of the pyrolysis furnace 6 in a directional mode, the valve 19 can control the water in the water storage tank 8 not to flow back to the inside of the water vapor conduit 13, so that the water at the position of the water vapor conduit 13 flows in a single direction, and the whole system is stable and smooth. Those skilled in the art can understand that the number of the stirring blades is not limited, and the stirring blades only need to be suitable for the device; the number of the microwave magnetrons is not limited, and only the proper temperature can be provided for the device.

The utility model discloses sludge pyrolysis oven, its working process is:

during feeding, sludge enters the thermal furnace 6 through the feeding port 1, and the electric control unit 16 controls the stirring shaft 5 to drive the stirring blades 2 to rotate, so that the sludge is uniformly distributed in the pyrolysis furnace 6. During pyrolysis: the microwave magnetron emits microwaves, the temperature in the pyrolysis furnace 6 rises, the sludge gradually generates steam, the baffle switch 15 and the valve 19 are opened, the steam is liquefied through the steam guide pipe and then is led into the water storage tank 8, and when the temperature in the furnace rises to 400 ℃, the pipeline switch 14 is opened to enable the liquid generated by reflection to enter the oil-gas separation condenser 10 for resource recycling. After the pyrolysis, the effect of electronic control unit 16 control water pump 17, with the water suction of water storage box 8 to cooling chamber 12 in, cool off pyrolysis oven 6 rapidly through cooling chamber 12, reduce process cycle, through the vapor cycle structure of compriseing microwave pyrolysis oven 6, water storage box 8, cooling chamber 12, vapor pipe 15, cooling water pipe 18 and electronic control unit 16, realized the self-loopa of water to the water resource has been practiced thrift.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without deviating from the principle of the present invention, those skilled in the art may make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention, so far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the drawings, however, those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a sludge pyrolysis furnace, its characterized in that, sludge pyrolysis furnace is inside to be equipped with vapor circulation structure, vapor circulation structure includes: a closed microwave pyrolysis furnace, a water storage tank, a cooling cavity, a water vapor conduit, a cooling water conduit and an electric control unit, wherein,

the microwave pyrolysis furnace is connected with the water storage tank through a steam guide pipe, the water storage tank is connected with the cooling cavity through a cooling water guide pipe, steam generated in the sludge pyrolysis process is transmitted to the inside of the water storage tank through the pyrolysis furnace, and liquid liquefied by the steam is pumped into the cooling cavity through the water storage tank under the control of the electric control unit so as to enable internal water to circulate.

2. The sludge pyrolysis furnace as claimed in claim 1, wherein the microwave pyrolysis furnace is provided with a microwave generator and a sludge stirring structure, a pyrolysis frame is arranged outside, the middle part of the microwave pyrolysis furnace is connected with an oil-gas separation condenser, the bottom of the microwave pyrolysis furnace is provided with a circle of round holes, and the microwave pyrolysis furnace is used for pyrolyzing sludge.

3. The sludge pyrolysis furnace of claim 2 wherein one circle of the circular holes are steam outlets at the junction of the pyrolysis furnace and the steam conduit for introducing steam from the pyrolysis furnace into the water reservoir.

4. The sludge pyrolysis furnace as claimed in claim 2, wherein the steam conduit is disposed at the joint of a circle of the circular holes, and is shaped like a funnel, a control valve for preventing liquid backflow is disposed at the tubular position, the steam conduit has a space sufficient for liquefying steam, a baffle switch is disposed at a circle of the circular holes on the outer wall of the pyrolysis furnace, and when the temperature inside the pyrolysis furnace reaches the temperature generated by steam, the baffle switch is automatically opened, so that steam is liquefied through the steam conduit and enters the water storage tank.

5. The sludge pyrolysis furnace of claim 2, wherein the pyrolysis furnace is axially sleeved into the pyrolysis frame, a gap between the pyrolysis furnace and the pyrolysis frame is a cooling cavity, and the upper part of the pyrolysis frame is connected with an upper feeding box, and the lower part of the pyrolysis frame is connected with a lower feeding box, and the pyrolysis furnace is used for fixing the microwave pyrolysis furnace.

6. The sludge pyrolysis furnace of claim 2 wherein the sludge agitation structure comprises: a stirring shaft and a stirring blade, wherein,

the stirring shaft is connected with the two ends inside the pyrolysis furnace, the stirring blades are arranged on the stirring shaft, and the sludge stirring structure is used for uniformly distributing sludge in the pyrolysis furnace.

7. The sludge pyrolysis furnace of claim 2, wherein the microwave generator is three microwave magnetrons, and the microwave magnetrons are arranged on the inner wall of the pyrolysis furnace for heating sludge.

8. The sludge pyrolysis furnace as claimed in claim 2, wherein the oil-gas separation condenser is connected with the pyrolysis furnace through an air extraction pipeline, and is used for realizing gas-solid separation and recycling oil sludge.

9. The sludge pyrolysis furnace as claimed in claim 6, wherein the sludge pyrolysis furnace device is provided with a water pump, the water pump is respectively connected with the electric control unit and the stirring shaft, and the water pump is used for pumping water in the water storage tank into the cooling cavity under the control of the electric control unit.

10. The sludge pyrolysis furnace of claim 5 wherein the water vapor conduit is disposed on an outer wall of the hopper.

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