WO2013149478A1

WO2013149478A1 - Multi-stage hydraulic mechanical garbage incinerator

Info

Publication number: WO2013149478A1
Application number: PCT/CN2012/086308
Authority: WO
Inventors: 陈涛; 韩乃卿; 朱福刚; 张洪波; 温俊明; 张宾; 邵哲如
Original assignee: 光大环保科技发展（北京）有限公司; 光大环保设备制造（常州）有限公司; 光大环保（中国）有限公司
Priority date: 2012-04-01
Filing date: 2012-12-10
Publication date: 2013-10-10
Also published as: MY169628A; IN2014MN02160A; BR112014024482B1; CN102607036A; CN102607036B

Abstract

A multi-stage hydraulic mechanical garbage incinerator comprising a material inlet, a material-feeding grate (4), an incineration grate, a primary air supply system, and a secondary air supply system. The incineration grate is divided along the longitudinal direction into five units, where the first to the fourth of the units are standard units, and where the fifth unit is an end extension unit, while each unit consists of several sliding grate plates, flipping grate plates, and fixed grate plates. The five units divide the entire incineration grate along a direction of garbage movement into a drying section, a combustion section, and a burnout section. A limiting support apparatus (2) for use in limiting upward movement of a material-feeding trolley (3) of the material-feeding grate (4) is provided on the upper surface at the tail part of the material-feeding trolley (3).

Description

Multi-stage hydraulic mechanical waste incinerator

The present invention relates to incineration of waste such as garbage, and more particularly to a multi-stage hydraulic mechanical waste incinerator. Background technique

Waste incineration is one of the main ways to achieve waste reduction, harmless and resource treatment. At present, waste incineration has gradually become the main way to treat municipal solid waste. After modern incineration, the waste can be reduced by 80°/»-90°/», and various pathogens can be eliminated to convert harmful substances into harmless substances. , can also achieve the use of resources.

The existing garbage incineration uses a mechanical waste incinerator having an incinerator, and the grate mainly comprises: a reciprocating grate, a reverse reciprocating grate, a drum grate, and the like. The waste incinerator shown in Figure 1 is a waste incinerator that uses a reciprocating grate. As shown in FIG. 1, the garbage incinerator comprises a feed port 1, a feed grate 2, a grate 3 for waste incineration located in the grate, and a primary air supply system 4 located in the lower part of the incinerator. The secondary air supply system 5 of the furnace throat and the slag discharge port 6. The incinerator grate integrally constitutes a hearth for incinerating garbage, and the grate is divided into a drying section, a burning section and a burning section in the longitudinal direction, and the incinerator grate is divided into three incineration units as a whole in the longitudinal direction, and each incineration unit is composed of a plurality of incineration units. The sliding grate piece, the rotating grate piece and the fixed grate piece are composed. The garbage is poured into the garbage incinerator from the feed port, and the garbage is incinerated into the hearth of the incinerator by the reciprocating push of the feed grate, and the garbage is dried and dehydrated in the drying section. The garbage is mainly burned in the combustion section, and the garbage passing through the burnout section has been burned out, and then the remaining slag enters the slag discharge port and is discharged from the slag discharge port. Wherein the primary air is sent from a plenum at the bottom of the incinerator for burning the waste, and the secondary air is fed from the throat of the waste incinerator for use in the post-combustion flue gas The combustible gas in the burnout. The ratio of the amount of heat released by the combustible material burned in the waste to the heat of the combustible material in the original waste, that is, the burnout rate of the waste is a very important parameter in the waste incineration process.

The above waste incinerator has the following defects in practical applications:

1) Since the above-mentioned grate is arranged in a longitudinal direction as a whole, it is composed of four rows of grate units juxtaposed in the width direction, and the grate is driven in four stages in a lateral direction, and each unit is controlled by a group of oil cylinders, which is caused in the above grate The middle part has space for the hydraulic drive, and the grate itself is compact. The space in the middle is small, which causes the heat generated in the furnace to accumulate and the temperature rises. According to the operating experience, basically the temperature is above, and the oil pipe of the existing incinerator hydraulic drive unit is used more. The pipe joint connection structure, the excessive temperature at the junction of the two drive shafts in the middle of the grate will cause the above-mentioned incinerator exhaust cylinder seal ring to age, frequent oil leakage, and even cause fire, which is difficult to operate.

2) In the prior art, the feeding trolley of the feeding waste incinerator of the domestic garbage incinerator often appears in the process of pushing forward the trolley, and the tail of the trolley is too large to cause the trolley to be stuck and cannot be pushed and retracted normally, and the manual chain hoist is required. Pulling the car back to the initial position brings many difficulties to the production operation. At the same time, due to the different widths of the feed grate and the incinerator row in the prior art, the distribution of domestic garbage in the lateral direction of the grate is uneven, which directly affects the burning effect of the garbage.

3) The existing end-of-life waste incinerator unit is too short to meet the requirements of burning up the garbage as much as possible under the high water conditions of domestic garbage.

4) The cooling effect of the grate primary wind is poor, the friction between the grate is large, causing serious damage to the grate piece and affecting the life, but the replacement cost of the above grate is very high.

5) The flipping grate of the existing garbage incinerator often has axial turbulence, which causes the tie rod to break, and the wear between the tumbling furnace row and the side wall grate plate is serious, which seriously affects the production operation.

6) Since China's current garbage sorting work has not been as good as that of developed countries in the West, China's urban domestic waste currently has more kitchen waste, higher water content and lower calorific value. In addition, the existing air supply system and the operation of the grate are mostly manually adjusted according to the experience of the operating personnel. The subjective factors and the experience of the operating personnel are large and cannot be adjusted according to the change of the calorific value of the garbage. , resulting in poor combustion of garbage, high birth slag rate.

Therefore, there is an urgent need for a new type of waste incinerator to solve various deficiencies in existing waste incinerators. Summary of the invention

In view of the deficiencies of the prior art, the present invention provides a multi-stage hydraulic mechanical waste incinerator to improve the deficiencies of existing garbage incinerators and improve the burn-up rate of waste incineration.

The present invention provides a multi-stage hydraulic mechanical waste incinerator comprising a feed port, a feed grate, an incinerator grate, a primary air supply system and a secondary air supply system, the incinerator row being divided into five longitudinally Units, wherein the first to fourth units are standard units, and the fifth unit is a terminal extension unit, each of the units is composed of a plurality of sliding grate pieces, a rotating grate piece, and a fixed grate piece, and the five units are The incinerator grate is divided into a drying section, a burning section and The exhausting section of the fuel-burning section is characterized in that the upper surface surface mask of the tailstock tail portion of the feeding material feeding trolley for the feeding furnace furnace row is useful for The limited-limit feeding mechanism of the feeding material feeding vehicle is moved upwards and upwards to support the supporting device. .

Further, the limit position support support device includes a support support bracket fixed on the feeding material trolley, and rolling a top wheel and a rolling scroll wheel axle, the top portion of the support support bracket has a concave groove groove, and the rolling wheel of the rolling wheel is fixed by a roller rolling wheel axle Yu Yu

5 In the recessed groove, the rolling scroll wheel is rotatable from the free roll in the groove groove. .

Further, the height limit of the limit position support supporting device is lower than the cover plate support support on the upper side of the feeding material trolley Cross beam beam. . Further, the number of the limit position support supporting devices is one or more than one. .

Further, the width of the feed to the furnace is different from that of the described incineration furnace. . Into the one-by-one, the said incinerator furnace row is arranged in each row of rows of furnaces, and the sheets are driven by a single axis along the transverse direction, and Horizontal and horizontal

Further, the steel frame carrier includes the brackets located on the two sides of the row of the incineration burners for fixing the fixed support and driving. Further of the shaft, at least one intermediate support is disposed below the incinerator row between the supports on both sides of the incinerator.

15 Further, the standard unit is a 5-row grate piece structure or a 6-row grate piece structure.

Further, the 5-row furnace row structure is composed of two rows of sliding grate pieces, two rows of fixed grate pieces and one row of rotating grate pieces, and the specific arrangement order is sliding grate piece, turning grate piece, fixed grate piece, sliding grate piece , fixing the grate piece or sliding grate piece, fixing the grate piece, sliding grate piece, turning the grate piece, fixing the grate piece.

0 further, the 6-row grate structure consists of two rows of sliding grate pieces, two rows of turning grate pieces and two rows of fixed grate pieces, the specific order of which is sliding grate piece, turning grate piece, fixed grate piece, sliding furnace Rowing, turning the grate and fixing the grate.

Further, the end lengthening unit is composed of four rows of sliding grate pieces, one row of turning grate pieces and three rows of fixed grate pieces.

5, the end plate lengthening unit, the grate piece according to the sliding grate piece, the rotating grate piece, the fixed grate piece, the sliding grate piece, the fixed grate piece, the sliding grate piece, the fixed grate piece, the sliding furnace into one; The grate plate, the fixed grate piece and the tumbling grate piece are each provided with a ash stop plate. Further, the fixed grate piece and the sliding grate piece are each provided with an elastic wear-resistant squeegee.

Further, the tumbling furnace row is composed of upper and lower combined kiln sheets, and the upper and lower combined kiln sheets include an upper cover plate and a grate piece main body supporting the upper cover plate.

Further, the grate piece main body includes a rotating end and a supporting end, wherein the grate piece main The support end of the body is provided with a pin hole, and the rotating end of the body of the grate piece is provided;

Further, the upper cover includes a rotating end and: wherein: a palm end of the upper cover is provided with a pin slot corresponding to the pin hole, and a rotating end of the upper cover is provided Description: The corresponding ferrule.

Further, the pin slot and the pin hole are connected by a pin for fixing the support end of the set of the row.

The ferrule and the elbow are engaged with each other for fixing the rotation of the combined grate piece

Further, the ferrule is a hook formed by bending a tail end of the rotating end of the upper cover.

Further, the hook is in the shape of "]".

Further, the elbow is a convex member disposed at a rotating end of the main body of the grate piece, and the lower end of the protruding member is provided with a groove

Further, the grate piece is provided with ribs on the inner side of the upper and upper cover plates. 7 Further, the grate piece is provided with a stop.

Enter one

The flip roller has a lower support member for supporting the flip wheel.

Further, the support member is a support roller.

Further, the support roller uses a high temperature resistant roller bearing.

Further, the turning roller is constituted by a part of a rotating large shaft.

Further, the rotating large shaft is used to support and drive the rotating furnace row.

Further, there are cooling chambers on both sides of the grate.

Oil into the hydraulic drive of a moving slab

Further, a thermocouple for temperature measurement is provided on the fixed grate sheet.

Into the last row of fixed grate pieces in the end extension unit, from the left second piece of grate, a thermocouple is arranged separately from the grate; for the first unit to the fourth unit and the row adjacent to the tumbler The grate plate is fixed, and a thermocouple is placed every 4 grate pieces from the third grate piece on the left side.

The invention solves the technical problems existing in the above-mentioned grate waste incinerator, and provides an incinerator furnace furnace which is more suitable for the characteristics of domestic garbage in China, and enables the waste incineration power plant using the grate furnace to operate efficiently and stably. The invention has the following advantages:

1. Because the grate is divided into five units along the longitudinal direction (the direction of the domestic garbage in the incinerator), it provides enough space and time for the drying, burning and burning of the garbage, which can significantly improve the waste. The burning condition of the garbage, increasing the burnout rate of the garbage; each row of the furnace row is driven by a shaft in the lateral direction and at least three points of support at the two sides and the intermediate position can control the potential oil leakage point of the hydraulic system and the drive shaft and the grate Deformation, so that the operation is more stable and reliable, while improving the combustion effect; the hydraulic oil pipeline driving the grate plate uses the welding oil pipeline. This design can avoid the aging of the incinerator exhaust cylinder seal due to excessive temperature, and frequent oil leakage. The possibility of fire is caused by the fact that the grate as a whole has a modular structure, and the installation speed is fast and the precision is high.

2. Due to the reasonable gap between the limiting support wheel and the cover plate, the feeding furnace row is in the forward process, and the upward displacement is limited by the roller to a small range, which effectively ensures the design of the feeding furnace row. The running track runs smoothly, and there is no phenomenon of offset and jamming, which effectively solves the problem that the feeding trolley often derails. At the same time, the width of the feed grate and the incinerator grate are the same, so that the incinerator row is distributed more evenly and the combustion is more uniform.

3. Due to the lengthening of the end garbage grate, the residence time of the garbage in the incinerator is prolonged, thereby increasing the burnout rate of domestic garbage.

4. Because the flipper row is divided into two parts (upper cover and flipper support), in actual use, even if the upper cover is worn out, the upper cover can be directly replaced without replacing the flipper support. It avoids the defects in the prior art that the entire grate piece needs to be replaced, saves cost, reduces material loss, and reduces running cost; since the turning roller is supported by two or more supporting members, the entire supporting roller intermediate support is The point becomes more than two points, effectively decomposing the force of the supporting wheel, ensuring that the bearing in the supporting wheel will not be damaged during long-term operation, and effectively limiting the deflection of the rotating large shaft and prolonging the service life of the rotating large shaft. . The roller rim uses a high temperature resistant roller bearing, that is, it satisfies the high temperature environment in the incinerator and satisfies the high load operation of the incinerator, and the bearing has the function of automatic centering and aligning, which is very suitable for the incinerator. The working condition; since the sliding grate piece, the fixed grate piece and the flipping furnace row piece are provided with the ash blocking plate, the ash leakage of the grate can be reduced as much as possible; due to the provision of the elastic wear-resistant blade, the two rows are adjacent There is almost no friction between the sheets, which improves the service life; the grate assembly has a modular structure, high installation precision, fast installation speed and lower cost. DRAWINGS

The following drawings of the invention are hereby incorporated by reference in their entirety in their entirety. The embodiments of the invention and the description thereof are shown in the drawings

In the figure:

1 is a structural view of a waste incinerator in the prior art; 2 is a schematic view showing the overall structure of a garbage incinerator row of the present invention;

3 is a schematic structural view of a first unit of a garbage incinerator according to the present invention;

Figure 4 is a schematic view showing the end of the waste incinerator grate at the end of the present invention;

Figure 5 is a schematic view showing the overall lateral support structure of the garbage incinerator row of the present invention;

Figure 6 is a schematic view of the feed grate of the present invention;

Figure 7 is a schematic view of a sliding grate of the present invention;

Figure 8 is a schematic view of the fixed grate sheet of the present invention;

Figure 9 is a schematic view showing the overall structure of the upper and lower combined type tumbling furnace sheets of the present invention;

Figure 10 is a schematic view showing the assembly of the upper and lower combined type tumbling furnace sheets of the present invention;

Figure 1 is a schematic view of a flip roller supported by a double roller support of the present invention;

Figure 12 is a schematic view showing the arrangement of the grate thermocouple of the present invention;

Figure 13 is a schematic view showing the arrangement of the thermocouples on the fixed grate sheet of the present invention. detailed description

In the following description, numerous specific details are set forth in the However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, some of the technical features well known in the art have not been described in order to avoid confusion with the present invention.

In order to thoroughly understand the present invention, detailed steps will be set forth in the following description in order to explain the multi-stage hydraulic mechanical waste incinerator proposed by the present invention. It is apparent that the practice of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but the present invention may have other embodiments in addition to the detailed description.

It will be understood that when the terms "comprising" and "comprising" are used in the specification, the <RTI ID=0.0> </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; Or a plurality of other features, integers, steps, operations, components, components, and/or combinations thereof.

The invention provides a novel multi-stage hydraulic mechanical waste incinerator structure, the waste incinerator comprising a feed inlet, a feed grate, an incinerator grate, a primary air supply system and a secondary air supply system. As shown in Fig. 2, the incinerator row is divided into five units 2, 3, 4, 5, 6, in the longitudinal direction, wherein the first to fourth units are standard units, and the fifth unit 6 is a terminal extension unit. The standard unit is a 5-row grate piece structure or a 6-row grate piece structure. The 5-row grate piece structure is composed of two rows of sliding grate pieces, two rows of fixed grate pieces and one row of turning grate pieces, and the specific arrangement order is a sliding grate piece, Turning the furnace row, fixing the grate piece, sliding grate piece, fixing the grate piece or sliding grate piece, fixing the grate piece, sliding grate piece, turning the grate piece, fixing the grate piece. The 6-row furnace row structure comprises two rows of sliding grate pieces, two rows of turning grate pieces and two rows of fixed grate pieces, and the specific arrangement order is sliding grate piece, turning furnace row piece, fixed grate piece piece, sliding grate piece piece, turning furnace Row and fixed grate pieces. As shown in FIG. 3, the standard unit is composed of two rows of sliding grate pieces, two rows of turning grate pieces and two rows of fixed grate pieces, wherein reference numeral 1 is a feeding grate interface fixing grate piece, and 1 is an interface fixing grate. The squeegee, 3 is a side wall, 4 is a fixed grate piece, 5 is a sliding grate piece, 6 is a tumbling grate piece, 7 is a squeegee, and 8 is a grate support. The sliding grate piece is configured to longitudinally move the garbage, and the chopping furnace row piece is used for flipping garbage in a vertical direction to fully burn the garbage, wherein the grate pieces in each unit may have a plurality of arrangement manners, Commonly, the arrangement of the sliding grate piece, the turning grate piece, the fixed grate piece, the sliding grate piece, the turning grate piece, and the fixed grate piece are arranged. As shown in FIG. 4, the end lengthening unit is composed of four rows of sliding grate pieces 1, one row of turning grate pieces 2 and three rows of fixed grate pieces 3. The specific arrangement sequence is a sliding grate piece, a rotating grate piece, a fixed grate piece, a sliding grate piece, a fixed grate piece, a sliding grate piece, a fixed grate piece, and a sliding grate piece. Due to the lengthening of the end garbage grate, the residence time of the garbage in the incinerator is prolonged, thereby increasing the burnout rate of domestic garbage. The five units divide the entire incinerator row into a drying section, a burning section and a burning section in the longitudinal direction.

The overall lateral support structure of the grate of the present invention is as shown in FIG. 5. Each row of grate rows of the grate 4 is driven laterally by a shaft, which is supported by the steel frame 5 in at least three positions in the lateral direction. The steel frame includes support members on both sides of the incinerator row for fixedly supporting the drive shaft, and an intermediate support member disposed below the incinerator row between the two side support members. The increased steel frame support structure in the middle can effectively reduce the deflection of the grate drive shaft, control the deformation of the drive shaft and the grate, and extend the service life of the grate. The horizontal displacement of the grate is driven by a shaft, which can control the potential oil leakage point of the hydraulic system and make the temperature distribution of the grate sheet more uniform, so that the operation is more stable and reliable while improving the combustion effect. The tubing of the hydraulic drive unit that drives the grate plate is welded with a stainless steel bushing. Since the tubing of the hydraulic drive unit is welded with a stainless steel bushing, the potential leak point is reduced, the operation is more stable, and the reliability is higher.

As shown in Fig. 6, the feed grate 4 of the present invention is hydraulically driven, and the width of the feed grate 4 and the incinerator grate are the same, so that the domestic garbage is more evenly distributed in the lateral direction of the grate, and the combustion is improved. effect. The upper surface of the tail portion of the feed cart 3 of the feed grate 4 has a limit support device for restricting the upward movement of the feed cart 3. With the hydraulic oil in the hydraulic cylinder 1, the feed trolley and the feed grate 4 travel forward to push the domestic waste on the feed grate 4 to the incinerator row in the furnace. Then returning to the original position, and then moving forward to push the domestic garbage to the grate in the furnace, so as to work cyclically, the limit support device 2 is installed on the upper side of the tail of the feeding trolley, and the limit support device is installed A reasonable gap is left between the cover and the cover plate, so that the upward displacement of the trolley is limited to a small range during the advancement process, which effectively ensures that the trolley runs smoothly according to the designed running track without offset and jamming. The phenomenon effectively solves the problem of frequent derailment of the feeding trolley. Preferably, the limiting support device 2 comprises a support frame fixed on the feeding cart 3, a rolling wheel and a rolling wheel axle, and the top end of the supporting frame is provided with a groove for surrounding the rolling wheel, the rolling The axle is plugged in the groove, and the groove is larger than the rolling wheel, and the rolling wheel can freely roll in the groove under the action of the rolling wheel axle, so that not only the feeding trolley 3 can be defined The distance between the upper cover and the upper cover, and once the trolley is slightly tilted, the rolling wheel and the cover are in contact, the rolling wheel can slide along the cover, and the buffer acts as a buffer, even if it touches the cover. Will be stuck. The number of the limiting support devices 2 may be one or more, uniformly and symmetrically distributed at the tail of the feeding trolley 3, and the limiting support device 2 can not only prevent the car from being stuck, but also can effectively control the feeding. The carriage 3 moves in the left and right direction to prevent the trolley from getting out of the track.

Domestic waste is pushed from the feed grate to the incinerator row, then dried, burned and burned. The incinerator grate includes a sliding grate, a fixed grate, and a flipper. Considering the thermal expansion of the grate sheets during operation, a certain gap is left between the grate sheets and between the grate sheets and the side walls of the equipment during installation. In order to reduce the leakage of garbage from this gap, and to make the primary air entering from the lower part of the grate evenly distributed inside the grate equipment, as shown in Figures 1, 8, 9, and 10, stainless steel is also welded inside the grate piece. Gray ash board. For the grate pieces at different installation locations, the shape and position of the stainless steel ash slabs welded to them are not the same, which can minimize the ash leakage of the grate. The fixed grate piece and the sliding grate piece are each provided with an elastic wear-resistant squeegee, which can reduce the friction between the two rows of slabs, thereby improving the service life of the grate piece. A cooling chamber is also provided on both sides of the grate. The cooling air is used to keep the external temperature of the equipment from being too high, and it also acts to protect the refractory material inside the side wall grate.

As shown in FIG. 9 and FIG. 10, the turning grate is composed of a top and bottom combined type of rotating furnace row, and the upper and lower combined turning furnace row includes an upper cover 7 and a grate piece main body supporting the upper cover 7, the upper cover The rafter body 8 includes a rotating end and a supporting end, wherein the supporting end of the upper cover 设有 is provided with a pin groove, and the supporting end of the grate main body 8 is provided with a corresponding pin hole, the pin The shaft groove and the pin shaft hole are connected by a pin shaft for fixing the support end of the combined grate; the rotating end of the upper cover plate 7 is provided with a ferrule, and the rotating end of the grate main body 8 is provided with the ferrule Matching elbow, for Fixing the rotating end of the combined grate, thereby dividing the prior art grate piece into two parts, an upper cover plate 7 and a grate piece main body. In actual use, even if the upper cover plate is worn, the upper cover plate can be directly replaced. The utility model does not need to replace the main body of the grate plate, thereby avoiding the defects in the prior art that the entire grate piece needs to be replaced, which saves cost, reduces material loss and reduces operating cost. Preferably, the ferrule is a hook which is bent downwardly at the end of the rotating end of the upper cover 7. Preferably, the hook is a "=""-shaped hook, and the elbow is disposed on the grate main body 8. a protruding member of the rotating end, the lower end of the protruding member is provided with a groove to match the bent portion of the hook. In use, the hook of the upper cover 7 on the rotating end completely wraps the convex part of the grate main body 8, and the bent portion of the hook enters the groove on the lower side of the convex piece, so that the hook and the convex piece are mutually The buckle is stuck. At the support end, the pin groove and the pin hole are coaxially disposed, and the pin shaft is inserted into the pin groove and the pin hole, so that the upper cover Ί and the grate piece main body are integrated. Get the upper and lower combined turning furnace row. Preferably, the grate piece main body is provided with a stop 10 through which the entire grate piece is clamped on the rotating large shaft of the grate, and is driven by the rotating large shaft of the grate to realize the whole grate piece winding. The rotating shaft rotates to achieve the turning of the garbage and improve the combustion efficiency. Preferably, the inner side of the joint surface of the grate piece main body and the upper cover 7 is provided with a rib plate, and the arrangement of the rib plate not only improves the strength of the combined grate but also improves the heat dissipation performance of the grate. The number of ribs can be set as needed.

As shown in Fig. 11, the operation of the tumbling furnace row 1 is driven by a hydraulic push rod to rotate the large shaft, and then the rotating large shaft drives the tumbling furnace to perform the turning operation. The turning roller is constituted by a part of a rotating large shaft for supporting and driving the turning furnace row. At least one support member for supporting the flip roller is disposed under the flip roller, and the support member may be a support tug. In the prior art, the support point of the turning roller is changed from one to at least two, which effectively decomposes the force of the tug, and ensures that the roller does not wear too fast due to overload during operation; and at the same time, due to the increase of the support point, The self-positioning of the rotating large shaft during operation and the reduction of the support wheel load solve the problem that the vertical turning of the turning grate 7 is often axially broken and the rotating large shaft rod 8 is broken. Preferably, the support member is a supporting roller 10, and the supporting roller not only can well support the rotating large shaft, but also the tangent between the supporting roller and the turning roller, and the friction between the two is further On the one hand, the supporting wheel does not repeatedly move back and forth which affects the turning roller, and the wear of the supporting wheel itself is reduced, the service life is prolonged, and the operation of the turning roller 9 and the turning grate 7 is better ensured. . Preferably, the tug wheel is selected from a high temperature resistant roller bearing, which not only satisfies the high temperature environment in the incinerator but also satisfies a high radial load, and the bearing has the function of self-aligning and centering. , very suitable for the working conditions in the incinerator.

The technical scheme sets a measuring point for the temperature of the grate piece, and performs the temperature of the grate piece in operation. Real-time monitoring for controlling the sliding grate and turning the grate.

12 is a schematic view of the grate thermocouple arrangement of the present invention, and FIG. 12 is a top view of the waste incinerator hearth, which specifically includes five units, each unit including a plurality of sliding grate pieces, a rotating grate piece and a fixed furnace Rowing. The specific arrangement of the above-mentioned grate thermocouples may be: For the last row of fixed grate pieces in the fifth unit, one thermocouple is arranged for every other grate piece from the second second grate piece on the left side; A row of fixed grate sheets adjacent to the fourth unit and the rotating furnace row, from the third grate piece on the left side, one thermocouple is arranged every four grate pieces; the thermocouples on each fixed grate piece are arranged in the same manner as Figure 13 shows. Fig. 11 is a plan view and a side view of the fixed furnace row, the thermocouple being mounted on the bottom surface of the upper furnace cover. It should be noted that the specific arrangement of the grate thermocouple described above is only a specific example of the present invention, and the present invention is not limited thereto. It is obvious to those skilled in the art that there are other possible alternatives or simple deformations. However, they all fall within the scope of protection of the present invention.

The present invention has been described by the above-described embodiments, but it should be understood that the above-described embodiments are only for the purpose of illustration and description. Further, those skilled in the art can understand that the present invention is not limited to the above embodiments, and various modifications and changes can be made according to the teachings of the present invention. These modifications and modifications are all claimed in the present invention. Within the scope. The scope of the invention is defined by the appended claims and their equivalents.

Claims

Rights request

1. A multi-stage hydraulic mechanical waste incinerator comprising a feed inlet, a feed grate, an incinerator grate, a primary air supply system and a secondary air supply system, the incinerator grate being divided into five units in a longitudinal direction Wherein the first to fourth units are standard units, and the fifth unit is a terminal lengthening unit, each of the units consisting of a plurality of sliding grate pieces, a rotating grate piece, and a fixed grate piece, the five units are to be incinerated The grate is divided into a drying section, a burning section and a burning section along the moving direction of the garbage, wherein the feeding upper end surface of the feeding trolley has a limit supporting device for restricting the upward movement of the feeding trolley .

1. The waste incinerator according to claim 1, wherein the limit support device comprises a support frame fixed to the feeding trolley, a rolling wheel and a rolling wheel axle, the top of the support frame having a groove, The scroll wheel is fixed in the recess by a rolling wheel axle, and the scroll wheel is free to roll in the recess.

3. A waste incinerator according to claim 1 wherein the height of the limit support means is lower than the cover support beam above the feed trolley.

4. A waste incinerator according to claim 1, wherein the number of said limit support means is one or more.

5. A waste incinerator according to claim 1 wherein the width of the feed grate is the same as the width of the incinerator row.

6. The waste incinerator according to claim 1, wherein each row of the incinerator row is driven by a shaft in a lateral direction, and is laterally carried by a steel frame at at least three positions. support.

1. A waste incinerator according to claim 6 wherein said steel frame includes support members on either side of said incinerator row for securing the drive shaft.

8. A waste incinerator according to claim 1 wherein at least one intermediate support member is disposed beneath the incinerator row between the two side supports of the incinerator row.

9. The waste incinerator according to claim 1, wherein the standard unit is a 5-row furnace row structure or a 6-row furnace row structure.

The garbage incinerator according to claim 9, wherein the 5-row furnace row structure comprises two rows of sliding grate pieces, two rows of fixed grate pieces, and one row of flipping grate pieces, wherein the specific arrangement order is Sliding grate, flipping grate, fixed grate, sliding grate, fixed grate or sliding grate, fixed grate, sliding grate, flip grate, fixed grate Film.

1 . The waste incinerator according to claim 9, wherein the six rows of furnace row structure comprises two rows of sliding grate pieces, two rows of rotating grate pieces and two rows of fixed grate pieces, wherein the specific arrangement order is Slide grate, flipper row, fixed grate, sliding grate, flip grate and fixed grate.

12. The waste incinerator according to claim 1, wherein the end lengthening unit is composed of four rows of sliding grate pieces, one row of rotating grate pieces, and three rows of fixed grate pieces.

The waste incinerator according to claim 12, wherein the bottom row of the end lengthening unit is a sliding grate piece, a rotating grate piece, a fixed grate piece, a sliding grate piece, a fixed grate piece, a sliding grate piece, The order of the fixed grate pieces and the sliding grate pieces is arranged.

The garbage incinerator according to claim 1, wherein the sliding furnace row, the fixed grate piece, and the turning furnace row piece are each provided with a ash blocking plate.

The garbage incinerator according to claim 1, wherein the fixed furnace row and the sliding grate sheet are each provided with an elastic wear-resistant squeegee.

The waste incinerator according to claim 1, wherein the turning furnace row is composed of upper and lower combined grate pieces, and the upper and lower combined grate pieces comprise an upper cover plate and a support according to claim 16. The garbage incinerator is characterized in that the grate piece main body comprises a rotating end and a supporting end, wherein the supporting end of the grate piece main body is provided with a pin hole, and the rotating end of the grate piece main body is provided with an elbow.

The waste incinerator according to claim 17, wherein the upper cover includes a rotating end and a supporting end, wherein the supporting end of the upper cover is provided with a pin corresponding to the pin hole The shaft groove, the rotating end of the upper cover is provided with a ferrule corresponding to the elbow.

The waste incinerator according to claim 18, wherein the pin groove and the pin hole are connected by a pin for fixing the support end of the combined grate piece.

20. A waste incinerator according to claim 18, wherein the ferrule and the elbow are engaged with one another for securing the rotational end of the modular grate.

The garbage incinerator according to claim 18, wherein the ferrule is a hook formed by bending a tail end of a rotating end of the upper cover.

22. A waste incinerator according to claim 21 wherein said hook is in the shape of a "="".

23. The waste incinerator according to claim 17, wherein said elbow is provided a protruding member disposed at a rotating end of the main body of the grate piece, wherein the lower end of the protruding member is provided with a groove

A waste incinerator according to claim 16, wherein the grate piece is provided with a rib on both sides of the joint surface of the upper and upper cover plates.

A garbage incinerator according to claim 16, wherein said grate piece is provided with a stopper.

26. The waste incinerator according to claim 1, further comprising: a flipping roll having at least two under the flipping roller for supporting the flipping? Support for the wheel.

27. The waste incinerator of claim 26,

The support member is a support roller.

28. A waste incinerator according to claim 27, wherein said roller rim is a high temperature resistant roller bearing.

A garbage incinerator according to claim 26, wherein said turning roller is constituted by a part of a rotating large shaft.

30. A waste incinerator according to claim 29, wherein said rotating large shaft is used to support and drive the rotating hearth.

31. The waste incinerator of claim 1

: There are cooling chambers on both sides of the grate.

32. The waste incinerator of claim 1

Hydraulic drive unit tubing with stainless steel bushing welded structure

The garbage incinerator according to claim 1, wherein the fixed furnace row is provided with a thermocouple for temperature measurement.

34. The waste incinerator of claim 33,

For the last row of fixed grate pieces in the end lengthening unit, a thermocouple is arranged from the left second piece of the grate piece to the bottom of the grate; for the first unit to the fourth unit and the crowded furnace row adjacent to the row of the solid furnace row From the third grate on the left, a thermocouple is placed every 4 grate.