CN216521680U - Slag-removing combustion-supporting device of incinerator - Google Patents

Abstract

The utility model discloses a deslagging combustion-supporting device of an incinerator, which comprises a combustion chamber, wherein a combustion hearth (1) and an ash bucket (11) arranged below the combustion hearth are arranged in the combustion chamber, a material receiving groove (2) and a hollow double-screw shaft (3) are arranged at the position of a slag outlet of the combustion hearth (1), and the double-screw shaft (3) is communicated with an air inlet pipe (31) and an air outlet pipe (32); connect to be equipped with through-hole (21) on the cell wall of silo (2), the tank bottom that should connect silo (2) is equipped with ash hole (22), and the lower extreme intercommunication of this ash hole is equipped with the blow-off valve. The utility model is provided with the hollow double-screw shaft and the rotary sealing sleeve in the discharge valve, thereby not only preheating the air inlet temperature, but also ensuring the combustion temperature in the combustion chamber of the incinerator, and keeping the orderly deslagging, and improving the use efficiency of the incinerator.

Description

Slag-removing combustion-supporting device of incinerator

Technical Field

The utility model relates to the technical field of incinerator manufacturing, in particular to a deslagging and combustion-supporting device of an incinerator.

Background

The position of slagging tap of present waste incinerator is only provided with ash bucket and the valve of fixed switching usually, burn the internal connection of burning furnace and have the intake pipe, be used for providing combustion air for burning furnace burning hearth, among the prior art, the air is vertical upwards circulation behind the direct entering ash bucket of blast pipe, and the clearance through the fixed row and the exhaust of moving gets into boiler burning hearth, and when opening valve exhaust ashes, the combustion chamber communicates with the outside of burning furnace, there is cold air entering combustion chamber, the difference in temperature of cold air and combustion chamber air is great, it is great to the stability influence of the combustion temperature in the burning furnace.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deslagging and combustion-supporting device of an incinerator, which preheats the temperature of inlet air and can ensure the tightness of a combustion chamber during deslagging.

The technical scheme of the utility model is as follows:

a deslagging combustion-supporting device of an incinerator comprises a combustion chamber, wherein a combustion hearth and an ash bucket arranged below the combustion hearth are arranged in the combustion chamber, a receiving groove with an upward opening is arranged at a slag outlet of the combustion hearth, a double-screw shaft is arranged in the receiving groove along the axis direction, the double-screw shaft is of a hollow structure, one end of the double-screw shaft is communicated with an air inlet pipe, and the other end of the double-screw shaft is communicated with an air outlet pipe communicated with the combustion chamber; connect to be equipped with the through-hole on the cell wall of silo, this through-hole communicates with the discharge gate of ash bucket, and the tank bottom that should connect the silo is equipped with the ash hole, and the lower extreme intercommunication of this ash hole is equipped with the relief valve, the relief valve includes the box be equipped with the discharge gate on the box, be equipped with the axis of rotation of being connected with motor power in this box the removable at least two seal covers that outwards stretch out that are equipped with along the circumferencial direction on the lateral wall of axis of rotation, when the axis of rotation rotates, correspond the position the end that stretches out of seal cover and the corresponding position laminating butt of box inner wall guarantee combustion chamber and discharge gate remain the isolated state throughout.

By adopting the structure, the double spiral shaft with a hollow structure is arranged in the receiving groove, the furnace ash in the combustion chamber falls into the receiving groove through the movable grate group, the furnace ash in the ash hopper also falls into the receiving groove through the furnace ash main pipe and the through hole, the temperature of the furnace ash is transferred to the double spiral shaft and is transferred to the air input by the air inlet pipe through the heat of the double spiral shaft, the air inlet temperature of the combustion chamber is increased by utilizing the waste heat of the furnace ash, the heat loss in the incinerator is reduced, and the stability of the combustion temperature can be ensured; meanwhile, the double helix axle is rotatory, utilize helical blade to concentrate to the middle part that connects the silo the ashes that connect the silo both ends, and fall into the box through the ash hole, be equipped with the axis of rotation of taking the seal cover in the box, when the axis of rotation rotates, except discharging the ashes in batches, the end that stretches out of its seal cover that corresponds the position laminates the butt with the corresponding position of box inner wall, in order to guarantee that combustion chamber and discharge gate remain the isolated state throughout, guarantee combustion temperature's in the combustion chamber stability promptly, the service efficiency is improved, and the operation is convenient.

In order to facilitate assembly, guarantee the discharged efficiency of ashes simultaneously, as preferred the spiro union has the sealing ring on the inner wall of box the symmetry is equipped with two first baffles, two second baffles and two third baffles in the axis of rotation, six all the cover is equipped with the seal cover that outwards stretches out on the baffle, and when the axis of rotation rotated, the corresponding position the terminal surface that the seal cover stretched out the end and the lateral wall laminating butt of sealing ring.

In order to facilitate the removal and replacement of the sealing sleeves, preferably, each partition plate is provided with a through hole, the positions, corresponding to the through holes, of the corresponding sealing sleeves are provided with connecting holes, bolts penetrate through the connecting holes and the through holes from top to bottom, penetrating ends of the bolts are tightly riveted by nuts, and the sealing sleeves are tightly pressed and fixed on the partition plates by nuts of the bolts.

Preferably, six of the partitions are uniformly arranged on the rotating shaft in the circumferential direction in order to adapt to the structure of the casing and ensure the sealing property of the combustion chamber.

In order to ensure the service life and keep the smooth attachment and abutment of the sealing sleeve, the sealing ring is preferably made of copper-impregnated graphite.

Has the advantages that: the utility model is provided with the hollow double-screw shaft and the rotary sealing sleeve in the discharge valve, thereby not only preheating the air inlet temperature, but also ensuring the combustion temperature in the combustion chamber of the incinerator, and keeping the slag removal orderly, thereby improving the use efficiency of the incinerator.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic view of the installation structure of the material receiving groove.

Fig. 4 is a schematic view of the operation of the discharge valve.

Detailed Description

The utility model will be further explained with reference to the drawings.

As shown in fig. 1, 2, 3 and 4, the present invention comprises a combustion chamber, a combustion hearth 1 and an ash bucket 11 arranged below the combustion hearth are arranged in the combustion chamber, a receiving groove 2 with an upward opening is arranged at a slag outlet of the combustion hearth 1, a double screw shaft 3 is arranged in the receiving groove 2 along an axial direction, the double screw shaft 3 is of a hollow structure, one end of the double screw shaft 3 is communicated with an air inlet pipe 31, and the other end is communicated with an air outlet pipe 32 communicated with the combustion chamber.

Connect and be equipped with through-hole 21 on the cell wall of silo 2, this through-hole 21 and ash bucket 11's discharge gate intercommunication, should connect the tank bottom of silo 2 to be equipped with ash hole 22, the lower extreme intercommunication of this ash hole is equipped with the relief valve.

The discharge valve comprises a box body 4, a discharge hole is formed in the box body 4, a sealing ring 61 made of copper-impregnated graphite is connected to the inner wall of the box body 4 in a threaded mode, a rotating shaft 41 connected with a power motor is arranged in the box body 4, two first partition plates 51, two second partition plates 52 and two third partition plates 53 are symmetrically arranged on the rotating shaft 41, sealing sleeves 6 extending outwards are sleeved on the six partition plates, when the rotating shaft 41 rotates, the end face of the extending end of each sealing sleeve 6 in the corresponding position is abutted to the outer side wall of the sealing ring 61 in a fit mode, and the combustion chamber and the discharge hole are guaranteed to be always kept in an isolation state; each partition board is provided with a through hole, the position, corresponding to the through hole, of the seal sleeve at the corresponding position is provided with a connecting hole, a bolt penetrates through the connecting hole and the through hole from top to bottom, and the penetrating end of the bolt is tightly riveted by a nut, so that the seal sleeve is tightly pressed and fixed on the partition board by the nut of the bolt.

The six clapboards are uniformly arranged on the rotating shaft 4 along the circumferential direction.

The using method of the utility model is as follows:

as shown in fig. 1 to 4, a double spiral shaft 3 with a hollow structure is arranged in a receiving groove 2, furnace ash in a combustion chamber drops into the receiving groove 2 through a movable row group (not marked), furnace ash in an ash hopper 11 also drops into the receiving groove 2 through a furnace ash main pipe (not marked) and a through hole 21, temperature heat of the furnace ash is transferred to the double spiral shaft 3 and is transferred to air input by an air inlet pipe 31 through the double spiral shaft heat, the air preheated by waste heat of the furnace ash is discharged into the combustion chamber through an air outlet pipe 32, on one hand, the air inlet temperature of the combustion chamber is increased, the heat loss in an incinerator is reduced, and on the other hand, the stability of the combustion temperature can be ensured.

Meanwhile, the starter motor drives the two-screw shaft to rotate, the furnace dust connected with the two ends of the material groove 2 is concentrated at the middle part of the material groove 2 by the aid of the screw blades, and falls into the box body 4 through the dust outlet 22, the rotating shaft 41 with the partition plates is arranged in the box body 4, the two first partition plates 51, the two second partition plates 52 and the two third partition plates 53 are symmetrically arranged on the rotating shaft 41, the six partition plates are uniformly arranged along the circumferential direction, the sealing sleeves are arranged on each partition plate, and the concrete working principle is as follows:

as shown in fig. 1 and 4, a cavity groove structure is formed between two adjacent partition plates and surrounded by the rotating shaft 41, at this time, furnace ash falls into three cavity grooves at the upper part in the box body 4, the sealing sleeves 6 on the two second partition plates 52 are abutted with the outer wall of the sealing ring 61, and the combustion chamber and the discharge port at the lower end of the box body 4 are in a partition state; when the rotating shaft 41 continues to rotate counterclockwise, and the sealing sleeves 6 on the two first partition plates 51 and the second partition plates 52 are abutted to the sealing ring 61, at this time, the furnace ash only falls into the two cavity grooves at the upper part in the box body 4, and the combustion chamber and the discharge port at the lower end of the box body 4 are still in a separation state (as shown in a diagram in fig. 4); the rotating shaft 41 continues to rotate counterclockwise again, at this moment, the sealing sleeve 6 on the second partition plate 52 leaves the position of the sealing ring 61, and the cavity groove at the lower left side in the box 4 exposes a gap, the furnace ash in the cavity groove begins to be discharged outside the discharge hole, the furnace ash falling from the ash discharge hole 22 still falls into two cavity grooves at the upper part in the box 4, the sealing sleeves 6 on the third partition plate 53 and the first partition plate 51 are both attached and abutted to the sealing ring 61, the combustion chamber and the outside are still in a separation state (as shown in a b diagram in fig. 4), the rotating shaft 41 continuously rotates, the furnace ash can be discharged in batches, the combustion chamber and the outside can be ensured to be always in the separation state, namely, the stability of the combustion temperature in the combustion chamber is further ensured, and the use efficiency is improved.

It should be noted that the sealing ring 61 is made of copper-impregnated graphite, which not only reduces the rotational wear of the sealing sleeve 6, but also ensures better rotational smoothness of the sealing sleeve 6; the quantity that sets up of baffle should set up according to the span of the feed inlet of box 4 and discharge gate to satisfy the operation requirement as preferring, this embodiment does not have the uniqueness.

Claims (5)

1. The utility model provides an burn burning furnace combustion-supporting device of slagging-off, includes the combustion chamber be equipped with burning hearth (1) and ash bucket (11) that set up in the below of burning hearth in the combustion chamber, its characterized in that: a receiving groove (2) with an upward opening is arranged at the slag outlet of the combustion hearth (1), a double-screw shaft (3) is arranged in the receiving groove (2) along the axis direction, the double-screw shaft (3) is of a hollow structure, one end of the double-screw shaft (3) is communicated with an air inlet pipe (31), and the other end of the double-screw shaft is communicated with an air outlet pipe (32) communicated with a combustion chamber; connect to be equipped with through-hole (21) on the cell wall of silo (2), the discharge gate intercommunication of this through-hole (21) and ash bucket (11), the tank bottom that should connect silo (2) is equipped with ash hole (22), and the lower extreme intercommunication of this ash hole is equipped with the relief valve, the relief valve includes box (4) be equipped with the discharge gate on box (4), be equipped with axis of rotation (41) of being connected with motor power in this box (4) along the removable seal cover that is equipped with two at least outside stretches out of circumferencial direction on the lateral wall of axis of rotation (41), when axis of rotation (41) rotate, correspond the position the end that stretches out of seal cover and the corresponding position laminating butt of box (4) inner wall guarantee combustion chamber and discharge gate remain the isolated state throughout.

2. An incinerator deslagging combustion-supporting device according to claim 1, characterized in that: the utility model discloses a seal box, including box (4), axis of rotation (41) and all the covers of baffle are equipped with seal cover (6) that outwards stretches out, axis of rotation (41) when rotating, correspond the position seal cover (6) stretch out the terminal surface of end and the lateral wall laminating butt of seal ring (61) that have seal ring (61) on the inner wall spiro union of box (4) the symmetry is equipped with two first baffles (51), two second baffles (52) and two third baffles (53), six all the cover is equipped with on the baffle.

3. An incinerator deslagging combustion-supporting device according to claim 2, characterized in that: each partition board is provided with a through hole, the position, corresponding to the through hole, of the seal sleeve at the corresponding position is provided with a connecting hole, a bolt penetrates through the connecting hole and the through hole from top to bottom, and the penetrating end of the bolt is tightly riveted by a nut, so that the seal sleeve is tightly pressed and fixed on the partition board by the nut of the bolt.

4. An incinerator deslagging combustion-supporting device according to claim 2, characterized in that: the six clapboards are uniformly arranged on the rotating shaft (41) along the circumferential direction.

5. An incinerator deslagging combustion-supporting device according to claim 2, characterized in that: the sealing ring (61) is made of copper-impregnated graphite.

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