Water-sealed scraper conveyor

By setting connecting components and adjusting parts in the water-sealed scraper, the negative pressure environment of the waste incinerator is used to absorb water vapor, solving the pollution problem caused by loose tail wheel sealing and achieving clean and safe operation of the equipment.

WO2025213874A1PCT designated stage Publication Date: 2025-10-16DALIAN SHENZHEN ENERGY ENVIRONMENT CO LTD +1
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Patent Information

Application Number
PCT/CN2024/143491
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-04-09
Filing Date
2024-12-28
Publication Date
2025-10-16

AI Technical Summary

Technical Problem

The tail wheel of the existing water-sealed scraper is not tightly sealed, causing water vapor to condense and flow out, polluting the equipment and the ground.

Method used

A connecting component is set between the head wheel and the tail wheel position of the water-sealed scraper. The negative pressure environment of the waste incinerator is used to absorb water vapor. The gas flow is adjusted through connecting pipes and regulating parts. An observation window is set to monitor the liquid level to prevent excessive negative pressure.

Benefits of technology

It effectively prevents water vapor from condensing and flowing out from loose seals, prevents equipment and ground pollution, saves energy, facilitates cleaning and maintenance, and ensures safe operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2024143491_16102025_PF_FP_ABST
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Abstract

A water-sealed scraper conveyor, comprising a conveyor body, wherein the conveyor body comprises a horizontally arranged middle section and inclined side sections connected to both ends of the middle section; a slag receiving port used for receiving slag discharged by an upstream device is connected to the upper surface of the middle section; a slag discharge pipe is connected to a lower inclined surface of the side section on one side; the conveyor body has a hollow interior that defines a mounting space; a scraper assembly used for moving the slag is arranged in the mounting space; the upper ends of the side sections on both sides are each provided with a connecting end; a communicating assembly is detachably arranged between the two connecting ends; internal spaces of the side sections on the both sides are communicated by means of the communicating assembly, enabling water vapor to circulate and be taken away by negative pressure from a downstream device. According to the water-sealed scraper conveyor, water vapor generated in water-sealed upper spaces of the side sections on the both sides can be extracted through the slag discharge pipe, effectively preventing water vapor from condensing at and leaking from imperfect seals, solving the problem of contamination of the device and floor due to water dripping from the device housing.
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Description

Water seal type scraper TECHNICAL FIELD

[0001] The utility model relates to scraper technology field especially is related to a water seal type scraper. BACKGROUND

[0002] Compared with landfill and compost, waste incineration is more land-saving and does not cause surface water and groundwater pollution, in the case that urbanization accelerates and construction land index approaches the limit, for large and medium-sized cities with dense population, land shortage and waste surrounding, waste incineration gradually becomes a practical choice, the water seal type scraper is used with the waste incinerator, and the function is that the slag (the slag has high temperature) falling from the grate of the waste incinerator falls into the equipment, is cooled through water seal, then is scraped into the slag falling pipe by the rotating scraper, and enters the lower equipment, but the slag falls into the equipment, the water in the equipment is heated by the slag, and there is water vapor in the upper space of the water seal of the head wheel and the tail wheel, the head wheel is connected with the slag falling outlet pipe and the slag falling pipe of the hearth of the waste incinerator, and the water vapor at the position of the head wheel is sucked away through the negative pressure in the hearth of the waste incinerator, but the tail wheel position is a closed space, and the water vapor condenses and flows out from the not-tightly sealed place, so that the equipment shell drips water, pollutes the equipment and the ground.

[0003] CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that water vapor flows out from the not-tightly sealed place of the equipment, the equipment shell drips water, and the ground is polluted when the prior art is used, the utility model provides a water seal type scraper.

[0005] The technical problem of the utility model is solved through the following technical scheme:

[0006] A water seal type scraper, including the body 1, the body 1 includes the horizontally arranged middle body and the obliquely arranged side body connected with both ends of the middle body, the upper surface of the middle body is connected with the slag falling interface 6 for accepting the slag discharged by the upper equipment, the lower inclined surface of one side of the side body is connected with the slag falling pipe 2 for discharging the slag after cooling treatment into the lower equipment, and the slag falling outlet pipe 2 is connected with the negative pressure environment of the lower equipment ; The installation space is hollow in the body, the scraper assembly for moving the slag is arranged in the installation space, the upper end of the side body on both sides is provided with a connecting end, the internal space of the side body on both sides is communicated through the communication assembly detachably arranged between the two connecting ends, so that the water vapor can flow and be taken away by the negative pressure of the lower equipment.

[0007] In some embodiments, the communication component is a connecting pipe 7, the connecting pipe 7 is respectively matched and docked with the connecting ends on the two side machine bodies, and the connecting pipe 7 is further provided with an adjusting member for adjusting the gas flow.

[0008] In some embodiments, the two side machine bodies are detachably mounted, and the adjusting member is an adjusting valve 5.

[0009] In some embodiments, the two side machine bodies are provided with observation windows, the observation windows can observe the liquid level position in the machine body 1 to cooperate with the adjusting member to prevent excessive negative pressure.

[0010] In some embodiments, the connecting end is a convex pipe 4, the convex pipe 4 is communicated with the inside of the side machine body, and the convex pipe 4 is movably connected with the communication component.

[0011] In some embodiments, the upper end of the convex pipe 4 is provided with a loose end 8, and the convex pipe 4 is threadedly connected with the end of the connecting pipe 7 through the loose end 8.

[0012] In some embodiments, the two side machine bodies are respectively a head wheel side machine body and a tail wheel side machine body, the scraper assembly comprises a head wheel 10 and a tail wheel 9, the head wheel side machine body is provided with the head wheel 10, and the surface of the head wheel side machine body is communicated with the slag discharge pipe 2, the tail wheel side machine body is provided with the tail wheel 9, and the tail wheel 9 is drivingly connected with the head wheel 10 through a chain, and scrapers are arranged on the chain at equal intervals.

[0013] In some embodiments, the head wheel side machine body is further provided with a driving docking position, the driving docking position is used for connecting an external driving member with the head wheel 10 to drive the whole scraper assembly to operate.

[0014] In some embodiments, the adjusting member is arranged at one end of the connecting pipe 7 close to the tail wheel 9.

[0015] In some embodiments, the inclined middle part of the lower end of the two side machine bodies and the middle part of the lower end surface of the middle machine body are both connected with support legs 3.

[0016] The beneficial effects of the utility model in comparison with the prior art include:

[0017] The utility model provides a water seal type scraper, through being provided with communication components between the side machine bodies for arranging head wheels and tail wheels on the two sides of the machine body, the side machine body for arranging the tail wheel and the side machine body for arranging the head wheel are communicated, simultaneously, the side machine body for arranging the head wheel is connected with the hearth, has negative pressure environment, water vapor in the side machine body for arranging the tail wheel can be sucked away through the communication components, water dripping from the equipment shell caused by water vapor generated in the side machine body for arranging the tail wheel and condensed through the sealing not tight is avoided, and pollution to the equipment and the ground is avoided.

[0018] In addition, in some embodiments, the following beneficial effects are also achieved:

[0019] By additionally installing an adjusting member for adjusting the gas flow on the connecting pipe, the excessive negative pressure at the tail wheel position can be effectively prevented according to actual requirements, and the water vapor flow rate in the connecting pipe is adjusted, and observation windows are arranged on the two side bodies, so that the liquid level position in the body can be observed through the observation windows to adjust the adjusting member to prevent excessive negative pressure.

[0020] By detachably installing the two side bodies and connecting the connecting assembly and the connecting end, the internal space of the body can be conveniently cleaned and maintained.

[0021] By arranging the head wheel side body and the tail wheel side body, the head wheel is arranged in the head wheel side body, the surface of the head wheel side body is communicated with the slag falling pipe, the head wheel side body is additionally provided with a driving docking position, an external driving member is connected to the head wheel through the driving docking position to drive the whole scraper assembly to rotate, the tail wheel is arranged in the tail wheel side body, and the adjusting member is arranged at one end of the connecting pipe close to the tail wheel, so that the driving and adjusting partition design is realized, the space is effectively utilized, daily inspection and maintenance are facilitated, and safe operation of the operator is ensured.

[0022] The other beneficial effects of the embodiment of the utility model will be further described below. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is a perspective structural schematic view of the water seal type scraper of the embodiment of the utility model.

[0024] Fig. 2 is an internal structural schematic view of the water seal type scraper of the embodiment of the utility model.

[0025] Fig. 3 is a structural schematic view of the water seal type scraper in operation of the embodiment of the utility model.

[0026] The reference signs are explained as follows: 1, body; 2, slag falling pipe 2; 3, supporting leg; 4, convex pipe; 5, adjusting valve; 6, slag falling interface; 7, connecting pipe; 8, movable end; 9, tail wheel; 10, head wheel. DETAILED DESCRIPTION

[0027] The utility model will be further described below by comparing the drawings and combining the preferred embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the left, right, up, down, top, bottom and other orientation terms in the present embodiment are only relative concepts, or are referenced to the normal use state of the product, and should not be considered as limiting.

[0029] The utility model discloses an embodiment realizes that the traditional water seal type scraper is provided with movable chain tightness adjusting device at its tail wheel position, and the tightness of chain is controlled through moving tail wheel, so the tail wheel can not be directly fixed on the equipment shell, and there is gap between tail wheel fixing device and equipment shell, so it can not be completely sealed, and even if the gap is small, water vapor can also condense and flow out from the not tightly sealed place. As shown in figures 1 to 3, an embodiment of the utility model provides a water seal type scraper, which comprises a slag receiving interface 6 and a slag outlet pipe 2, the slag receiving interface 6 is used for receiving slag discharged by a superior device, and the slag outlet pipe 2 is used for discharging the slag after cooling into an inferior device and is connected with an external negative pressure environment, preferably, the superior device is a garbage incinerator capable of discharging slag components (specifically, a mechanical grate type garbage incinerator grate lower hopper component), preferably, the inferior device is a garbage incinerator capable of receiving slag components (specifically, a mechanical grate type garbage incinerator slag well component), preferably, the slag receiving interface 6 is connected with the grate lower hopper of the garbage incinerator and is used for receiving slag falling from the grate gap, and preferably, the slag outlet pipe 2 is used for connecting the slag outlet pipe of the garbage incinerator hearth, the slag outlet pipe of the garbage incinerator hearth is connected with the garbage incinerator hearth, the garbage incinerator is a micro negative pressure combustion, and a certain negative pressure is maintained in the garbage incinerator hearth. The water seal type scraper provided by the embodiment of the utility model further comprises a machine body 1, a scraper assembly and a communication assembly, the machine body 1 is hollow inside and has an installation space, the scraper assembly is arranged in the installation space and is used for moving slag, the scraper assembly is used for scraping the slag into the slag outlet pipe 2, the machine body 1 comprises a middle machine body and side machine bodies obliquely arranged on both sides of the middle machine body, the lower inclined surface of one side machine body is communicated with the slag outlet pipe 2, the upper surface of the middle machine body is connected with the slag receiving interface 6, the side machine bodies are each provided with a connecting end 8, the connecting end 8 can be connected with the communication assembly in cooperation, and the communication assembly is used for connecting the internal spaces of the two side machine bodies, so that the water vapor in the two side machine bodies can flow and be taken away by the negative pressure in the garbage incinerator hearth.

[0030] As shown in Figure 2, it is the internal structure structure diagram of the water seal type scraper of the embodiment of the utility model, it is visible that the preferred communication assembly of the embodiment of the utility model is the connecting pipe 7, the connecting end 8 is the convex pipe 4, the convex pipe 4 is communicated with the inside of the side machine body, and the upper end of the convex pipe 4 is provided with the loose joint end 8, the convex pipe 4 is connected with the end of the connecting pipe 7 through the loose joint end 8, the loose joint end 8 can adopt the connecting mode of threaded sleeve, is used for the detachable connection with the end of the connecting pipe 7, it is visible that the detachable communication assembly between the two connecting ends 8 is set and is connected, so that the operator is convenient to clean and maintain the inside space of the machine body when actual work is carried out, to prevent the inside space of the machine body from accumulating dirt and impurities, to ensure the normal operation of the machine body 1 and the smooth transmission of the scraper assembly, the inside pipe and the connecting part of the machine body can also be effectively prevented from being damaged and corroded, and the service life of the machine body (1) is prolonged. Preferably, the connecting pipe 7 is also provided with an adjusting member for adjusting the water vapor flow, and the adjusting member is an adjusting valve 5. The use of the adjusting valve 5 can adjust the water vapor flow, effectively prevent the negative pressure of the tail wheel position from being too large, and adjust the water vapor flow rate in the connecting pipe (7). During actual operation, the opening of the adjusting valve 5 is adjusted to keep the tail wheel part in a slight negative pressure (the slight negative pressure is preferably -10±0.5 Pa) to prevent the air suction amount of the connecting pipe 7 from being too large and increase the power consumption of the induced draft fan, causing energy waste. At the same time, the two side machine bodies of the embodiment of the utility model are also provided with observation windows, through which the liquid level position in the machine body 1 can be observed to adjust the adjusting valve 5 to prevent excessive negative pressure.

[0031] In the embodiment of the utility model, the two side machine bodies are respectively a head wheel side machine body and a tail wheel side machine body, the scraper assembly includes a head wheel 10 and a tail wheel 9, the head wheel side machine body is provided with the head wheel 10, and the surface of the head wheel side machine body is communicated with the slag discharge pipe 2, the tail wheel side machine body is provided with the tail wheel 9, and the tail wheel 9 and the head wheel 10 are drivingly connected by a chain, and the chain is provided with scrapers at equal intervals. Preferably, the head wheel side machine body is also provided with a driving docking place, which is used to connect the external driving member with the head wheel to drive the overall operation of the scraper assembly. The external driving member is a motor and a reducer used in cooperation. The driving docking place is arranged on the head wheel side machine body, so that it is indirectly connected with the hearth of the waste incinerator and sealed by filling. Therefore, the driving docking place is also under negative pressure, and water vapor will not flow out. At the same time, the adjusting valve 5 is arranged at one end of the connecting pipe 7 close to the tail wheel 9, realizing the design of driving and adjusting partition, effectively utilizing the space, facilitating daily inspection and maintenance, and ensuring the safe operation of the operator.

[0032] In the embodiment of the utility model, the middle part of the inclined surface of the lower end of the two side machine bodies and the middle part of the lower end surface of the middle machine body are connected with supporting legs (3), which not only can effectively support the device as a whole by using fewer supporting points to save material cost, but also does not affect the disassembly and installation of the machine body.

[0033] As shown in Figure 3, it is the structure schematic diagram of the water seal type scraper machine in the operation of the embodiment of the utility model, it can be seen that the water seal type scraper machine in the embodiment of the utility model works, the falling slag (i.e. slag and has high temperature) of the ash bucket under the garbage incinerator grate is entered into the inside of the machine body 1 through the falling slag interface (6), is cooled by the water in the inside of the machine body 1, is transported to the falling slag pipe 2 place and is discharged through the scraper assembly, the water in the inside of the machine body 1 is heated by the falling slag, and the water vapor is generated at the upper space of the water seal of the two side machine bodies (head wheel side machine body, tail wheel side machine body), since the head wheel side machine body is communicated with the falling slag outlet pipe (2) and the communication assembly is arranged between the two side machine bodies of the machine body and the head wheel side machine body and the tail wheel side machine body can be communicated through the communication assembly, the water vapor is sucked away through the communication assembly by the negative pressure in the garbage incinerator hearth, the water dripping of the equipment shell caused by the water vapor of the tail wheel side machine body condensing and flowing out through the not tight sealing place is avoided, and the pollution to the equipment and the ground is avoided.

[0034] The above is the further detailed description of the utility model in combination with the specific preferred embodiment, and the specific implementation of the utility model cannot be limited to these descriptions. For the person skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of equivalent substitutions or obvious variations can be made, and the performance or use is the same, and all should be regarded as belonging to the protection scope of the utility model.

Claims

1. A water-sealed scraper, characterized in that: The invention comprises a machine body (1), wherein the machine body (1) comprises a horizontally arranged middle machine body and an inclined side machine body connected to both ends of the middle machine body, the upper surface of the middle machine body is connected with a slag interface (6) for receiving slag discharged from the upper equipment, and the lower inclined surface of the side machine body on one side is connected with a slag pipe (2) for discharging the slag after cooling into the lower equipment; the slag outlet pipe (2) is connected to the negative pressure environment of the lower equipment; the interior of the machine body is hollow with an installation space, and a scraper assembly for moving the slag is arranged in the installation space, wherein the upper ends of the side machines on both sides are provided with connecting ends, and a connecting assembly is detachably provided between the two connecting ends, and the internal spaces of the side machines on both sides are connected through the connecting assembly, so that water vapor can circulate and be carried away by the negative pressure of the lower equipment.

2. The water-sealed scraper according to claim 1, characterized in that: The connecting component is a connecting pipe (7), both ends of which are respectively connected to the connecting ends on the two side bodies, and an adjusting member for adjusting the gas flow is also installed on the connecting pipe (7).

3. The water-sealed scraper according to claim 2, characterized in that: The side bodies on both sides are detachably mounted, and the regulating member is a regulating valve (5).

4. The water-sealed scraper according to claim 2, characterized in that: The side bodies on both sides are provided with observation windows, through which the liquid level position in the body (1) can be observed.

5. The water-sealed scraper according to claim 2, characterized in that: The connecting end is a convex tube (4), the convex tube (4) is connected to the inside of the side body, and the convex tube (4) and the connecting component are movably connected.

6. The water-sealed scraper according to claim 5, characterized in that: The upper end of the convex tube (4) is provided with a flexible end (8), and the convex tube (4) is threadedly connected to the end of the connecting tube (7) via the flexible end (8).

7. The water-sealed scraper according to claim 2, characterized in that: The two side bodies are respectively a head wheel side body and a tail wheel side body, the scraper assembly comprises a head wheel (10) and a tail wheel (9), the head wheel side body is provided with a head wheel (10) and the surface of the head wheel side body is connected with the slag outlet pipe (2), the tail wheel side body is provided with a tail wheel (9), a chain is connected between the tail wheel (9) and the head wheel (10), and scrapers are provided on the chain at equal intervals.

8. The water-sealed scraper according to claim 7, characterized in that: The head wheel side body is also provided with a driving docking portion, and the driving docking portion is used to dock and connect an external driving component with the head wheel (10) to drive the scraper assembly to operate as a whole.

9. The water-sealed scraper according to claim 8, characterized in that: The adjusting member is arranged at one end of the connecting pipe (7) close to the tail wheel (9).

10. The water-sealed scraper according to claim 1, wherein: The middle of the inclined surfaces at the lower ends of the two side bodies and the middle of the lower end surface of the middle body are both connected with support feet (3).

Citation Information

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