CN216807368U - Anti conveying system that hardens of waste incineration power generation flying dust - Google Patents

Abstract

The utility model relates to a fly ash anti-hardening conveying system for waste incineration power generation, which comprises an ash storage tank, a screw conveyor and a pulping tank which are connected in sequence, wherein the screw conveyor comprises a conveying cylinder, the axis of the conveying cylinder extends horizontally, the left end of the conveying cylinder is connected with a driving motor, only a screw conveying shaft is arranged in the conveying cylinder, an ash inlet pipe connected with a feed opening of the ash storage tank extends upwards from the upper side of the left end of the conveying cylinder, an ash outlet pipe connected with a feed opening of the pulping tank extends downwards from the lower side of the right end of the conveying cylinder, a bypass opening is formed in the conveying cylinder and positioned at the back side of the ash outlet, a dredging pipe is welded on the bypass opening, the axis of the dredging pipe and the axis of the ash outlet pipe are positioned in the same vertical plane vertical to the axis of the conveying cylinder, a sealing cover is detachably blocked at the end part of the conveying pipe, the conveying system is provided with a dredging rod which is used for extending into the dredging pipe after the sealing cover is opened, the whole structure is simple, convenient and practical, and can not carry out great improvement to the existing equipment.

Description

Anti conveying system that hardens of waste incineration power generation flying dust

Technical Field

The utility model relates to a hardening-resistant spiral conveying system for fly ash generated by burning garbage.

Background

The waste incineration power generation fly ash belongs to hazardous waste, and the cement kiln is a new disposal way for disposing the waste incineration fly ash in a cooperation manner, but the content of chloride ions in the fly ash is high, so that the content of the chloride ions in the fly ash needs to be effectively reduced by adopting a method of washing the fly ash with water. The main process flow is that fly ash is transported to the field by vehicles, the fly ash is transported to an ash storage tank, materials in the ash storage tank enter a spiral conveyor under the control of a discharger of a feed opening, the fly ash is transported to a pulping tank by the work of the spiral conveyor, the fly ash and water are mixed into pulp in the pulping tank, the pulp enters a water washing tank, a separation tank and the like, after the washing and separation processes, chlorine ions in the slurry are repeatedly cleaned, the slurry is transported to a filter press, filter pressing treatment is carried out, and the fly ash treatment is completed.

In actual flow, the ash inlet of pulping tank communicates with the ash outlet pipe of screw conveyer, and can continue to come to mix with the flying ash through water in the pulping tank, a large amount of steam come to the feed inlet of pulping tank and screw conveyer's discharge gate on this centre, and mix with the flying ash that is located this position, it hardens to go out at screw conveyer's discharge gate, and only attached on screw conveyer's the lateral wall of ash outlet pipe, after the equipment long-time operation, screw conveyer's ash outlet pipe is stifled gradually, lead to the unable unloading that lasts of screw conveyer, pulping tank feed inlet department is stifled to be died, and the steam that pulping tank feed inlet goes out can't adopt conventional drying mode to avoid, the problem that blocks up and harden just can appear in the long-time operation of equipment, need whole shut down to carry out the defeated maintenance of equipment, very big reduction treatment effeciency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fly ash anti-hardening conveying system for waste incineration power generation, which aims to solve the problem of blockage caused by mixing and hardening of fly ash discharged from an ash discharge pipe of a spiral conveyor in water in the process of conveying the fly ash to a pulping tank in the prior art.

In order to solve the problems, the anti-hardening conveying system for the waste incineration power generation fly ash adopts the following technical scheme:

the anti-hardening conveying system for the fly ash generated by burning the garbage comprises an ash storage tank, a screw conveyor and a pulping tank which are connected in sequence, wherein the screw conveyor comprises a conveying cylinder, the axis of the conveying cylinder extends horizontally, the left end of the conveying cylinder is connected with a driving motor, a screw conveying shaft is arranged in the conveying cylinder, an ash inlet pipe connected with a feed opening of the ash storage tank extends upwards from the upper side of the left end of the conveying cylinder, an ash outlet pipe connected with a feed opening of the pulping tank extends downwards from the lower side of the right end of the conveying cylinder, a bypass port is arranged on the back side of the ash outlet on the conveying cylinder, a dredging pipe is welded on the bypass port, the axial line of the dredging pipe and the axial line of the ash discharging pipe are positioned in the same vertical plane which is vertical to the axial line of the conveying cylinder, the removable shutoff of tip of dredging pipe has the closing cap, conveying system disposes and is used for opening the back with the closing cap, stretches into in the dredging pipe and will go out the hardened and formed dredging rod that vibrates the breakage on the ash pipe wall.

Furthermore, an outward-turned flange plate is arranged at the upper end of the dredging pipe, a bolt is connected between the sealing cover and the flange plate to enable the sealing cover and the flange plate to rotate relative to the bolt so as to open and close the sealing cover, a U-shaped clamping plate is further arranged between the sealing cover and the flange plate and back to the bolt, one side of the U-shaped clamping plate extends to the lower side of the flange plate, a welding nut is arranged on the other side of the U-shaped clamping plate, and the sealing cover is pressed and fixed on the flange plate through threaded connection and locking screws in the welding nut.

Furthermore, the dredging rod is a long straight rod, and the axis of the dredging pipe is consistent with the axis of the ash discharging pipe.

Furthermore, the diameter of the dredging pipe is larger than that of the ash discharging pipe.

Furthermore, a hanging hole is formed in the side wall of the pulping tank, and the dredging rod is inserted into the hanging hole.

The utility model has the following beneficial effects: compared with the prior art, the anti-hardening conveying system for the fly ash generated by burning the garbage is characterized in that when the conveying system works actually, when the conveyor cannot continue to operate due to hardening in the ash discharging pipe of the screw conveyor, the sealing cover is separated from the dredging pipe, the dredging pipe can directly see the condition inside the ash discharging pipe, the dredging rod extends into the ash discharging pipe from the dredging pipe and vibrates in a reciprocating mode, the hardened fly ash on the side wall of the ash discharging pipe is dredged and smashed in a manual or electric driving mode, the hardening and blocking problem in the ash discharging pipe is avoided, when the system works actually, the whole body is only required to be manually and periodically observed for dredging, the whole body is not required to be shut down for a long time, the screw conveyor is only required to be shut down for a few minutes, the dredging work can be completed, the whole structure is simple, convenience and practicability are realized, and the original equipment cannot be greatly improved.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the embodiment will be briefly described as follows:

FIG. 1 is a schematic structural diagram of an embodiment of the fly ash anti-hardening conveying system for waste incineration power generation according to the present invention;

fig. 2 is a schematic structural view of the dredging pipe in fig. 1.

Description of reference numerals: 1-ash storage tank; 2-a screw conveyor; 3-pulping tank; 4-a gate valve; 5-a discharger; 6-driving a motor; 7-an ash inlet pipe; 8-ash discharging pipe; 9-dredging pipe; 10-sealing the cover; 11-a dredging rod; 12-a flange plate; 13-a bolt; 14-U-shaped splints; 15-welding a nut; 16-locking screws.

Detailed Description

In order to make the technical purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, the anti-hardening conveying system for fly ash generated by burning garbage includes an ash storage tank 1, a screw conveyor 2 and a pulping tank 3 which are connected in sequence, and the general structure, the working principle, the mutual connection and the position relationship of the three are consistent with those of the prior art and are not described in detail. The feed opening of the bottom of ash storage tank 1 is equipped with push-pull valve 4, and the bottom side of push-pull valve 4 is equipped with tripper 5, carries the material to screw conveyer 2 in through tripper 5, and screw conveyer 2 is including carrying a section of thick bamboo, and the axis level of carrying a section of thick bamboo extends, and the left end is connected with driving motor 6, and inside is equipped with the auger delivery axle, and the left end of carrying a section of thick bamboo upward extends to have the ash inlet pipe 7 of being connected with the feed opening of ash storage tank 1, and the right-hand member downside of carrying a section of thick bamboo extends downwards has the ash outlet pipe 8 of being connected with the feed inlet of slurrying jar 3.

In addition, the dorsal part that lies in the ash hole on the transport cylinder has seted up the by-pass mouth, and the welding has dredging pipe 9 on the by-pass mouth, dredging pipe 9 the axis with the axis of ash pipe 8 is located the same vertical plane of the axis of perpendicular to transport cylinder, and the removable shutoff of tip of dredging pipe 9 has closing cap 10, and conveying system disposes and is used for after opening closing cap 10, stretches into in dredging pipe 9 and carries out the broken mediation pole 11 of vibrating with hardening on the ash pipe 8 wall.

Specifically, as shown in fig. 1, in this embodiment, the axis of the dredging pipe 9 is the same as the axis of the ash pipe 8, and the two extend away from each other, so that the internal structure of the ash pipe 8 can be directly seen from the upper port of the dredging pipe 9 downward. In order to adapt to the coaxial arrangement form of the dredging pipe 9 and the ash discharging pipe 8, in the embodiment, the dredging rod 11 is a long straight rod, the lower end of the dredging rod is provided with a vibrating tip, and the upper end of the dredging rod is bent to form a bending part which is convenient for manual holding and exerting force.

Meanwhile, in order to ensure that the pipe can be quickly dredged when hardened and blocked, in the embodiment, as shown in fig. 2, an outward-turned flange 12 is arranged at the upper end of the dredging pipe 9, a bolt 13 is connected between the sealing cover 10 and the flange 12 and rotates relative to the bolt 13 to open and close the sealing cover 10, a U-shaped clamp plate 14 is further arranged between the sealing cover 10 and the flange 12 and faces away from the bolt 13, one side of the U-shaped clamp plate 14 extends to the lower side of the flange 12, a welding nut 15 is arranged on the other side, and the sealing cover 10 is pressed and fixed on the flange 12 through threaded connection and a locking screw 16 in the welding nut 15. In actual operation, the locking screw 16 is unscrewed, the U-shaped clamping plate 14 is taken down, the bolt 13 is unscrewed, the sealing cover 10 is rotated relatively to open the dredging pipe 9, and the dredging rod 11 is extended into the ash discharging pipe 8 to conduct dredging vibration operation.

Further, in order to observe the internal blockage situation conveniently, the diameter of the dredging pipe 9 is larger than that of the ash discharging pipe 8, so that the internal situation of the ash discharging pipe 8 can be completely observed.

In order to facilitate the storage of the dredging rod 11, in the embodiment, a hanging hole is formed in the side wall of the pulping tank 3, and the dredging rod 11 is inserted into the hanging hole.

Of course, in other embodiments, the axes of the dredging pipe 9 and the ash discharging pipe 8 may be arranged in parallel, crossed at an angle, etc., and only the dredging rod 11 needs to be able to extend into the ash discharging pipe 8 and perform vibration operation.

In other embodiments, the cover 10 and the dredging pipe 9 are detachable, and the cover 10 may also be designed to be fixed by a flip-open fastener.

Finally, it should be noted that: the above embodiments are merely illustrative and not restrictive of the technical solutions of the present invention, and any equivalent substitutions and modifications or partial substitutions made without departing from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims (5)

1. The anti-hardening conveying system for the fly ash generated by burning the garbage comprises an ash storage tank, a screw conveyor and a pulping tank which are connected in sequence, wherein the screw conveyor comprises a conveying cylinder, the axis of the conveying cylinder extends horizontally, the left end of the conveying cylinder is connected with a driving motor, a screw conveying shaft is arranged in the conveying cylinder, an ash inlet pipe connected with a discharge port of the ash storage tank extends upwards from the upper side of the left end of the conveying cylinder, an ash outlet pipe connected with a feed port of the pulping tank extends downwards from the lower side of the right end of the conveying cylinder, it is characterized in that a bypass port is arranged on the back side of the ash outlet on the conveying cylinder, a dredging pipe is welded on the bypass port, the axial line of the dredging pipe and the axial line of the ash discharging pipe are positioned in the same vertical plane which is vertical to the axial line of the conveying cylinder, the removable shutoff of tip of dredging pipe has the closing cap, conveying system disposes and is used for opening the back with the closing cap, stretches into in the dredging pipe and will go out the hardened and formed dredging rod that vibrates the breakage on the ash pipe wall.

2. The fly ash hardening-resistant conveying system for waste incineration power generation as claimed in claim 1, wherein an outward-turned flange is provided at the upper end of the dredging pipe, a bolt is connected between the cover and the flange to rotate relative to the bolt for opening and closing the cover, a U-shaped clamp plate is further provided between the cover and the flange at a position facing away from the bolt, one side of the U-shaped clamp plate extends below the flange, and the other side is provided with a welding nut, wherein the welding nut is screwed and locked by a locking screw to press and fix the cover onto the flange.

3. The fly ash anti-hardening conveying system for waste incineration power generation according to claim 1 or 2, wherein the dredging pipe is a long straight pipe, and the axis of the dredging pipe is consistent with the axis of the ash discharge pipe.

4. The fly ash anti-hardening conveying system for waste incineration power generation as claimed in claim 3, wherein the diameter of the dredging pipe is larger than that of the ash discharging pipe.

5. The anti-hardening conveying system for fly ash generated by burning garbage and generating electricity according to claim 3, wherein a hanging hole is formed in a side wall of the pulping tank, and the dredging rod is inserted into the hanging hole.

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