CN212299020U

CN212299020U - Burning furnace nozzle structure is fired in special use of glue-containing waste liquid

Info

Publication number: CN212299020U
Application number: CN202021177775.3U
Authority: CN
Inventors: 吴茂彬; 谢裕田; 刘启远; 曹达成
Original assignee: Meizhou Weilibang Electronic Technology Co ltd
Current assignee: Meizhou Weilibang Electronic Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-01-05
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a nozzle structure of a combustion furnace special for glue-containing waste liquid; belonging to the technical field of nozzles; the technical key points of the device comprise an installation pipe, wherein a connecting flange is welded on the outer wall of the installation pipe, a liquid guide pipe is arranged in the installation pipe in a penetrating mode along the axial direction, a high-pressure air cavity is formed between the liquid guide pipe and the installation pipe, and an air inlet pipe communicated with the high-pressure air cavity is connected to the side wall of the installation pipe; the outlet ends of the installation pipe and the liquid guide pipe are connected with two fluid flow dividers which are matched with each other, and the free ends of the two fluid flow dividers are connected with two fluid nozzles; a threaded section is formed on the outer wall of the liquid inlet end of the liquid guide pipe, a fastening nut is connected to the threaded section in a threaded manner, and the fastening nut is matched with the liquid guide pipe to fix the double-fluid flow divider at the outlet end of the mounting pipe; the utility model aims at providing a nozzle structure of a special burning furnace for glue-containing waste liquid, which has compact and ingenious structure and good using effect; is used for spraying the glue-containing waste liquid.

Description

Burning furnace nozzle structure is fired in special use of glue-containing waste liquid

Technical Field

The utility model relates to a nozzle structure, more specifically say, especially relate to a special burning furnace nozzle structure that fires of gluey waste liquid.

Background

In the production process of the prepreg, the glue solution needs to be filtered by a filter, and impurities, agglomerated or semi-agglomerated hard blocks and the like in the glue solution are filtered. The filtered glue-containing waste liquid needs to be conveyed to a combustion furnace through a pipeline to be used as raw materials for combustion. At present, the glue-containing waste liquid is sprayed in a combustion furnace hearth in a mode of combining a high-pressure pump with a traditional spray head. However, the waste liquid contains more colloids with different sizes, so that spray orifices of the spray head are easily blocked, the machine is required to be stopped for cleaning frequently, and normal production is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough of above-mentioned prior art, provide a compact structure, ingenious, the special burning furnace nozzle structure that fires of gluey waste liquid that excellent in use effect.

The technical scheme of the utility model is realized like this: the utility model provides a special burning furnace nozzle structure that fires of gluey waste liquid, includes the installation pipe, has flange at the welding of installation outside of tubes wall, wear to be equipped with the catheter along the axial in the installation pipe, form the high pressure air cavity between catheter and the installation pipe, be connected with the intake pipe that switches on mutually with the high pressure air cavity on the installation pipe lateral wall.

The outlet ends of the installation pipe and the liquid guide pipe are connected with two fluid flow dividers which are matched with each other, and the free ends of the two fluid flow dividers are connected with two fluid nozzles; a thread section is formed on the outer wall of the liquid inlet end of the liquid guide pipe, a fastening nut is connected to the thread section in a threaded mode, and the fastening nut is matched with the liquid guide pipe to enable the double-fluid flow divider to be fixed at the outlet end of the installation pipe.

In the nozzle structure of the combustion furnace special for the glue-containing waste liquid, the double-fluid flow divider comprises an outer ring matched with the installation pipe and an inner ring matched with the liquid guide pipe, an annular air flow channel is formed between the outer ring and the inner ring, and gas flow dividing holes are uniformly distributed at the liquid outlet end near end part of the annular air flow channel along the circumferential direction at intervals.

The liquid inlet end of the inner ring is fixedly connected with the liquid outlet end of the liquid guide pipe, the outer wall of the inlet end of the outer ring is provided with a first annular connecting step, and the outlet end of the mounting pipe is provided with a second annular connecting step matched with the first annular connecting step; when the fastening nut tensions the catheter, the first annular connecting step and the second annular connecting step are connected and matched to seal the joint of the outer ring and the mounting tube.

In the nozzle structure of the special combustion furnace for the glue-containing waste liquid, the inlet end of the installation pipe is integrally formed with the sealing ring, and the inner aperture of the sealing ring is 1-3mm larger than the outer diameter of the liquid guide pipe.

An annular sealing step is arranged at the upper end of the inner hole of the sealing ring, and a sealing rubber ring is arranged in the annular sealing step; when the sealing rubber ring is not extruded, the lower end of the thread section is positioned on the upper side of the upper end surface of the sealing rubber ring, and the upper end surface of the sealing ring is positioned on the lower side of the upper end surface of the sealing rubber ring; and an annular abdicating step matched with the outer diameter of the liquid guide pipe is formed at the lower end of the inner screw hole of the fastening nut.

A third annular connecting step is arranged on the outer wall of the liquid inlet end of the inner ring, and a fourth annular connecting step matched with the third annular connecting step is arranged on the inner wall of the liquid outlet end of the liquid guide pipe; a plurality of connecting blocks are distributed between the inlet end of the outer ring and the liquid guide pipe at intervals along the circumferential direction, and the double-fluid flow divider is fixedly connected with the liquid guide pipe through each connecting block.

In the combustion furnace nozzle structure special for the glue-containing waste liquid, the double-fluid nozzle comprises a double-fluid connecting seat matched with the double-fluid flow divider, and the outlet end of the double-fluid connecting seat is detachably connected with the mixed spray head.

A mixing cavity is formed in the mixing nozzle, and two medium outlets on the double-fluid connecting seat are respectively communicated with the mixing cavity; and a plurality of gas-liquid nozzles are circumferentially distributed at intervals at the free end of the mixing nozzle, and the inner diameter of each gas-liquid nozzle is 4-6 mm.

In the combustion furnace nozzle structure special for the glue-containing waste liquid, the inner ring liquid outlet end inner wall is formed with the internal thread section, the double-fluid connecting seat is provided with the connecting boss in threaded connection with the internal thread section, the connecting boss and the corresponding double-fluid connecting seat are formed with the flow guide holes communicated with the inner ring inner hole along the central axis direction, the double-fluid connecting seat at the periphery of the connecting boss is uniformly provided with the plurality of air guide holes communicated with the annular air flow channel along the circumferential direction at intervals, and the flow guide holes and the air guide holes are respectively communicated with the mixing cavity.

In the nozzle structure of the combustion furnace special for the glue-containing waste liquid, the two-fluid connecting seat corresponding to the liquid outlet end of the flow guide hole is integrally formed with the first circular table part and the first cylindrical part which are sequentially connected along the liquid outlet direction; the flow guide holes sequentially penetrate through the first circular table part and the first cylindrical part.

The mixing cavity consists of a spherical surface part, a second cylindrical part and a second circular table part which are sequentially arranged from inside to outside; the first circular table part and the second circular table part correspond to each other and are matched with each other to form an annular flow guide channel; the free end of the first cylindrical part is positioned in the second cylindrical part and arranged at intervals, and the distance between the first cylindrical part and the second cylindrical part is 1-2.5 mm.

In the above combustion furnace nozzle structure special for the glue-containing waste liquid, the outer wall of the outlet end of the double-fluid connecting seat is provided with the fifth annular connecting step, and the double-fluid connecting seat at the rear side of the fifth annular connecting step is formed with the external thread section.

An annular connecting boss matched with the fifth annular connecting step is formed at the rear end of the mixing nozzle, and the outer diameter of the annular connecting boss is matched with the outer diameter of the double-fluid connecting seat where the external thread section is located and is larger than the outer diameter of the mixing nozzle.

A sixth annular connecting step is formed on the outer wall of the connecting part of the annular connecting boss and the mixing spray head, and a fastening ring is sleeved outside the contact part of the double-fluid connecting seat and the mixing spray head; the inner wall of one end of the fastening ring is provided with an internal thread section in threaded connection with the external thread section, and the other end of the fastening ring is integrally formed with a positioning convex ring matched with the sixth annular connecting step.

After the structure is adopted in the utility model, form high-pressure air cavity through installation pipe and catheter cooperation, realize the portable dismantlement of double fluid nozzle through the double-fluid shunt and change for it is more convenient to maintain. Through adopting original two fluid nozzle, utilize high velocity air to cut the gluey waste liquid and break up, avoid the nozzle to block up, gas mixing waste liquid simultaneously both can reduce the flow of waste liquid in the unit interval and improve the oxygen content around the waste liquid again, can realize the abundant burning of gluey waste liquid. The method effectively solves the problem of nozzle blockage, remarkably improves the utilization rate of the glue-containing waste liquid, and fully converts the glue-containing waste liquid into heat energy, thereby saving the consumption of fuel and achieving the purposes of energy conservation and emission reduction.

Drawings

The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the assembled structure of the dual fluid flow splitter and dual fluid nozzle portion of the present invention;

FIG. 3 is an enlarged partial schematic view at A of FIG. 1;

FIG. 4 is a schematic cross-sectional view at C-C in FIG. 2;

fig. 5 is a partially enlarged schematic view at B in fig. 2.

In the figure: 1. installing a pipe; 1a, connecting a flange; 1b, a second annular connecting step; 1c, a sealing ring; 1d, an annular sealing step; 2. a catheter; 2a, a threaded section; 2b, a fourth annular connecting step; 3. a high-pressure air cavity; 3a, an air inlet pipe; 4. a dual fluid flow splitter; 4a, an outer ring; 4b, an inner ring; 4c, an annular airflow channel; 4d, gas shunting holes; 4e, a first annular connecting step; 4f, a third annular connecting step; 4g, connecting blocks; 5. a two-fluid nozzle; 6. fastening a nut; 6a, an annular abdicating step; 7. sealing the rubber ring; 8. a two-fluid connecting seat; 8a, connecting a boss; 8b, flow guide holes; 8c, air vents; 8d, a first circular table part; 8e, a first cylindrical portion; 8f, a fifth annular connecting step; 8g, an external thread section; 9. a mixing nozzle; 9a, a mixing cavity; 9b, a gas-liquid nozzle; 9c, a spherical part; 9d, a second cylindrical portion; 9e, a second circular table portion; 9f, an annular flow guide channel; 9g, connecting a boss in an annular mode; 9h, a sixth annular connecting step; 10. a fastening ring; 10a, an internal thread section; 10b, positioning convex rings.

Detailed Description

Referring to fig. 1 to 5, the utility model discloses a special burning furnace nozzle structure that fires of gluey waste liquid, including installation pipe 1, there is flange 1a at 1 outer wall welding of installation pipe, catheter 2 wears to be equipped with along the axial in the installation pipe 1, forms high-pressure air cavity 3 between catheter 2 and the installation pipe 1, is connected with the intake pipe 3a that switches on mutually with high-pressure air cavity 3 on the installation pipe 1 lateral wall, intake pipe and outside high-pressure air source tube coupling.

The outlet ends of the installation pipe 1 and the liquid guide pipe 2 are connected with a matched double-fluid flow divider 4, and the free end of the double-fluid flow divider 4 is connected with a double-fluid nozzle 5; a threaded section 2a is formed on the outer wall of the liquid inlet end of the liquid guide pipe 2, a fastening nut 6 is connected to the threaded section 2a in a threaded manner, and the fastening nut 6 is matched with the liquid guide pipe 2 to fix the double-fluid flow divider 4 at the outlet end of the installation pipe 1. Through the cooperation of two fluid shunt and two fluid nozzle, realize the high-efficient mixture of gas-liquid, make the colloid etc. in the gluey waste liquid can be cut more tiny, more do benefit to the blowout. The portable connection of the two-fluid nozzle with the mounting tube and the catheter can be realized through the two-fluid flow divider.

In this embodiment, the two-fluid flow divider 4 includes an outer ring 4a matching with the mounting tube 1 and an inner ring 4b matching with the liquid guiding tube 2, an annular air flow channel 4c is formed between the outer ring 4a and the inner ring 4b, and gas flow dividing holes 4d are uniformly distributed at intervals in the circumferential direction on the proximal end portion of the liquid outlet end of the annular air flow channel 4 c. The flow distribution holes are beneficial to uniformly distributing high-pressure gas to enter the double-fluid nozzle, and can further improve the gas speed and be more beneficial to cutting and dispersing colloid.

The liquid inlet end of the inner ring 4b is fixedly connected with the liquid outlet end of the liquid guide tube 2, the outer wall of the inlet end of the outer ring 4a is provided with a first annular connecting step 4e, and the outlet end of the installation tube 1 is provided with a second annular connecting step 1b matched with the first annular connecting step 4 e; when the fastening nut 6 tightens the catheter 2, the first annular connection step 4e and the second annular connection step 1b are connected and cooperate to seal the joint of the outer ring 4a and the mounting tube 1. Through first, the cooperation of annular connection step, form two straight angular contact portions between the contact site of outer loop and installation pipe, compare planar seal, its sealing performance is better, can replace the use of sealed rubber ring, avoids high temperature to make the rubber ring melt and causes the dismouting inconvenient, maintains the problem of difficulty.

Preferably, a sealing ring 1c is integrally formed at the inlet end of the mounting tube 1, and the inner aperture of the sealing ring 1c is 1-3mm larger than the outer diameter of the catheter 2; through pressure test, in reasonable clearance within range, can use ordinary sealed rubber ring to realize stable sealed promptly, simple structure, with low costs, effectual.

An annular sealing step 1d is arranged at the upper end of the inner hole of the sealing ring 1c, and a sealing rubber ring 7 is arranged in the annular sealing step 1 d; when the sealing rubber ring 7 is not extruded, the lower end of the threaded section 2a is positioned on the upper side of the upper end surface of the sealing rubber ring 7 and the upper end surface of the sealing ring 1c is positioned on the lower side of the upper end surface of the sealing rubber ring 7. Therefore, the sealing rubber ring and the thread section structure are avoided, and the sealing performance is ensured.

An annular abdicating step 6a which is matched with the outer diameter of the liquid guide pipe 2 is formed at the lower end of the inner screw hole of the fastening nut 6. The annular abdicating step can ensure that the fastening nut is not contacted with the liquid guide pipe below the thread section when the fastening nut is locked, thereby ensuring that the fastening nut can effectively press the sealing rubber ring to cause the sealing rubber ring to generate elastic deformation so as to play an effective sealing role.

Preferably, the outer wall of the liquid inlet end of the inner ring 4b is provided with a third annular connecting step 4f, and the inner wall of the liquid outlet end of the liquid guide pipe 2 is provided with a fourth annular connecting step 2b matched with the third annular connecting step 4 f; a plurality of connecting blocks 4g are circumferentially distributed between the inlet end of the outer ring 4a and the liquid guide pipe 2 at intervals, and the double-fluid flow divider 4 is fixedly connected with the liquid guide pipe 2 through the connecting blocks 4 g. The step seal is adopted to replace the rubber ring seal, so that the long-time normal use of the nozzle in a high-temperature environment can be ensured. The connecting block is respectively welded with the outer ring and the liquid guide pipe, so that the stability of the structure is ensured.

In the present embodiment, the two-fluid nozzle 5 includes a two-fluid connecting base 8 coupled to the two-fluid flow divider 4, and a mixing nozzle 9 is detachably connected to an outlet end of the two-fluid connecting base 8.

A mixing cavity 9a is formed in the mixing nozzle 9, and two medium outlets on the double-fluid connecting seat 8 are respectively communicated with the mixing cavity 9 a; a plurality of gas-liquid nozzles 9b are circumferentially distributed at intervals at the free end of the mixing nozzle 9, and the inner diameter of each gas-liquid nozzle 9b is 4-6 mm. The gas-liquid nozzle can not be blocked, but also the spraying effect can be ensured only by keeping the gas-liquid nozzle within the parameter range, and the full combustion of the glue-containing waste liquid is ensured.

In order to facilitate disassembly and assembly and maintenance, an internal thread section is formed on the inner wall of the liquid outlet end of the inner ring 4b, a connecting boss 8a in threaded connection with the internal thread section is arranged on the double-fluid connecting seat 8, a flow guide hole 8b communicated with the inner hole of the inner ring 4b is formed on the connecting boss 8a and the corresponding double-fluid connecting seat 8 along the central axis direction, a plurality of air guide holes 8c communicated with the annular airflow channel 4c are uniformly distributed on the double-fluid connecting seat 8 on the periphery of the connecting boss 8a along the circumferential direction at intervals, and the flow guide holes 8b and the air guide holes 8c are respectively communicated with the mixing cavity 9 a.

Further preferably, a first circular table portion 8d and a first cylindrical portion 8e which are sequentially connected are integrally formed on the double-fluid connecting base 8 corresponding to the liquid outlet end of the flow guide hole 8b along the liquid outlet direction; the diversion hole 8b sequentially penetrates through the first circular table portion 8d and the first cylindrical portion 8 e.

Correspondingly, the mixing cavity 9a is composed of a spherical part 9c, a second cylindrical part 9d and a second circular truncated cone part 9e which are arranged from inside to outside in sequence; the first circular table part 8d and the second circular table part 9e correspond to each other and are matched with each other to form an annular flow guide channel 9 f; the free end of the first cylindrical part 8e is positioned in the second cylindrical part 9d and arranged at intervals, and the distance between the first cylindrical part 8e and the second cylindrical part 9d is 1-2.5 mm. By adopting the structure, the distance between the first cylindrical part 8e and the second cylindrical part 9d can further improve the speed of the air pressure in the last section, and meanwhile, the free end of the first cylindrical part extends into the second cylindrical part, so that the high-speed gas can completely wrap the glue-containing waste liquid and fully cut the glue-containing waste liquid, and the cutting effect is ensured. Also can avoid the backflow of the waste liquid containing the glue into the gas channel.

Referring to fig. 5, preferably, in order to facilitate the detachable connection of the dual-fluid connection seat and the mixing nozzle and to ensure the sealing performance, a fifth annular connection step 8f is provided on the outer wall of the outlet end of the dual-fluid connection seat 8, and an external thread section 8g is formed on the dual-fluid connection seat 8 at the rear side of the fifth annular connection step 8 f.

An annular connecting boss 9g matched with the fifth annular connecting step 8f is formed at the rear end of the mixing nozzle 9, and the outer diameter of the annular connecting boss 9g is matched with the outer diameter of the double-fluid connecting seat 8 where the external thread section 8g is located and is larger than the outer diameter of the mixing nozzle 9.

A sixth annular connecting step 9h is formed on the outer wall of the connecting part of the annular connecting boss 9g and the mixed spray head 9, and a fastening ring 10 is sleeved outside the contact part of the double-fluid connecting seat 8 and the mixed spray head 9; an internal thread section 10a in threaded connection with the external thread section 8g is arranged on the inner wall of one end of the fastening ring 10, and a positioning convex ring 10b matched with the sixth annular connecting step 9h is integrally formed at the other end of the fastening ring.

When the device is used, the liquid guide pipe is connected with an external glue-containing waste liquid storage container through a pipeline, and the air inlet pipe is connected with an external compressed air source. The nozzle structure is fixed at the top in the hearth of the combustion furnace through the connecting flange, so that the glue-containing waste liquid is uniformly sprayed into the hearth for combustion.

The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.

Claims

1. A nozzle structure of a combustion furnace special for glue-containing waste liquid comprises a mounting pipe (1), wherein a connecting flange (1a) is welded on the outer wall of the mounting pipe (1), and is characterized in that a liquid guide pipe (2) penetrates through the mounting pipe (1) along the axial direction, a high-pressure air cavity (3) is formed between the liquid guide pipe (2) and the mounting pipe (1), and an air inlet pipe (3a) communicated with the high-pressure air cavity (3) is connected to the side wall of the mounting pipe (1);

the outlet ends of the installation pipe (1) and the liquid guide pipe (2) are connected with a matched double-fluid flow divider (4), and the free end of the double-fluid flow divider (4) is connected with a double-fluid nozzle (5); a threaded section (2a) is formed on the outer wall of the liquid inlet end of the liquid guide pipe (2), a fastening nut (6) is connected to the threaded section (2a) in a threaded mode, and the fastening nut (6) is matched with the liquid guide pipe (2) to enable the double-fluid flow divider (4) to be fixed at the outlet end of the installation pipe (1).

2. The nozzle structure of the special combustion furnace for the glue-containing waste liquid as claimed in claim 1, wherein the double-fluid flow divider (4) comprises an outer ring (4a) matched with the installation pipe (1) and an inner ring (4b) matched with the liquid guide pipe (2), an annular air flow channel (4c) is formed between the outer ring (4a) and the inner ring (4b), and gas flow dividing holes (4d) are uniformly distributed at intervals along the circumferential direction at the liquid outlet end of the annular air flow channel (4 c);

the liquid inlet end of the inner ring (4b) is fixedly connected with the liquid outlet end of the liquid guide pipe (2), a first annular connecting step (4e) is arranged on the outer wall of the inlet end of the outer ring (4a), and a second annular connecting step (1b) matched with the first annular connecting step (4e) is arranged at the outlet end of the mounting pipe (1); when the fastening nut (6) tensions the liquid guide pipe (2), the first annular connecting step (4e) and the second annular connecting step (1b) are connected and matched with each other to seal the joint of the outer ring (4a) and the mounting pipe (1).

3. The nozzle structure of the special burning furnace for the gum-containing waste liquid as claimed in claim 1, wherein the inlet end of the mounting tube (1) is integrally formed with a sealing ring (1c), the inner aperture of the sealing ring (1c) is 1-3mm larger than the outer diameter of the liquid guiding tube (2);

an annular sealing step (1d) is arranged at the upper end of the inner hole of the sealing ring (1c), and a sealing rubber ring (7) is arranged in the annular sealing step (1 d); when the sealing rubber ring (7) is not extruded, the lower end of the thread section (2a) is positioned on the upper side of the upper end surface of the sealing rubber ring (7) and the upper end surface of the sealing ring (1c) is positioned on the lower side of the upper end surface of the sealing rubber ring (7);

an annular abdicating step (6a) which is matched with the outer diameter of the liquid guide pipe (2) is formed at the lower end of the inner screw hole of the fastening nut (6).

4. The nozzle structure of the special combustion furnace for the gum-containing waste liquid as claimed in claim 2, wherein a third annular connecting step (4f) is arranged on the outer wall of the liquid inlet end of the inner ring (4b), and a fourth annular connecting step (2b) matched with the third annular connecting step (4f) is arranged on the inner wall of the liquid outlet end of the liquid guide tube (2); a plurality of connecting blocks (4g) are distributed between the inlet end of the outer ring (4a) and the liquid guide pipe (2) at intervals along the circumferential direction, and the double-fluid flow divider (4) is fixedly connected with the liquid guide pipe (2) through each connecting block (4 g).

5. The nozzle structure of the special combustion furnace for the glue-containing waste liquid as claimed in claim 2, wherein the two-fluid nozzle (5) comprises a two-fluid connecting base (8) matched with the two-fluid flow divider (4), and a mixing nozzle (9) is detachably connected to the outlet end of the two-fluid connecting base (8);

a mixing cavity (9a) is formed in the mixing nozzle (9), and two medium outlets on the double-fluid connecting seat (8) are respectively communicated with the mixing cavity (9 a); a plurality of gas-liquid nozzles (9b) are circumferentially distributed at intervals at the free end of the mixing nozzle (9), and the inner diameter of each gas-liquid nozzle (9b) is 4-6 mm.

6. The nozzle structure of a special combustion furnace for gum-containing waste liquid as claimed in claim 5, wherein an internal thread section is formed on the inner wall of the liquid outlet end of the inner ring (4b), a connecting boss (8a) in threaded connection with the internal thread section is arranged on the two-fluid connecting seat (8), a flow guide hole (8b) communicated with the inner hole of the inner ring (4b) is formed on the connecting boss (8a) and the corresponding two-fluid connecting seat (8) along the central axis direction, a plurality of air guide holes (8c) communicated with the annular air flow channel (4c) are circumferentially and uniformly distributed on the two-fluid connecting seat (8) at the periphery of the connecting boss (8a) at intervals, and the flow guide hole (8b) and each air guide hole (8c) are respectively communicated with the mixing cavity (9 a).

7. The nozzle structure of a special combustion furnace for gum-containing waste liquid as claimed in claim 6, wherein the double-fluid connecting base (8) corresponding to the liquid outlet end of the diversion hole (8b) is integrally formed with a first circular table portion (8d) and a first cylindrical portion (8e) which are sequentially connected along the liquid outlet direction; the diversion hole (8b) sequentially penetrates through the first circular table part (8d) and the first cylindrical part (8 e);

the mixing cavity (9a) consists of a spherical surface part (9c), a second cylindrical part (9d) and a second circular table part (9e) which are arranged from inside to outside in sequence; the first circular table part (8d) and the second circular table part (9e) correspond to each other and are matched with each other to form an annular flow guide channel (9 f); the free end of the first cylindrical part (8e) is positioned in the second cylindrical part (9d) and arranged at intervals, and the distance between the first cylindrical part (8e) and the second cylindrical part (9d) is 1-2.5 mm.

8. The nozzle structure of a special combustion furnace for glue-containing waste liquid as claimed in claim 5, wherein the outer wall of the outlet end of the double-fluid connecting base (8) is provided with a fifth annular connecting step (8f), and an external thread section (8g) is formed on the double-fluid connecting base (8) at the rear side of the fifth annular connecting step (8 f);

an annular connecting boss (9g) matched with the fifth annular connecting step (8f) is formed at the rear end of the mixing nozzle (9), and the outer diameter of the annular connecting boss (9g) is matched with the outer diameter of the double-fluid connecting seat (8) where the external thread section (8g) is located and is larger than the outer diameter of the mixing nozzle (9);

a sixth annular connecting step (9h) is formed on the outer wall of the connecting part of the annular connecting boss (9g) and the mixing spray head (9), and a fastening ring (10) is sleeved outside the contact part of the double-fluid connecting seat (8) and the mixing spray head (9); an inner thread section (10a) in threaded connection with the outer thread section (8g) is arranged on the inner wall of one end of the fastening ring (10), and a positioning convex ring (10b) matched with the sixth annular connecting step (9h) is integrally formed at the other end of the fastening ring.