CN215446430U

CN215446430U - Waste heat boiler for metal recovery

Info

Publication number: CN215446430U
Application number: CN202121215417.1U
Authority: CN
Inventors: 李伟东; 盘鸿; 李汝全; 李恩靖
Original assignee: Wanzai Zhicheng Industry Co ltd
Current assignee: Wanzai Zhicheng Industry Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-01-07
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of waste heat recovery and utilization, and discloses a waste heat boiler for metal recovery, which comprises a boiler body, wherein a coal inlet pipe is inserted into a feed inlet at the top of the boiler body, an air bag tank is fixedly arranged on the outer wall of the boiler body, a ash layer is arranged inside the boiler body, a gasification layer is arranged inside the boiler body, an air inlet is arranged on the outer wall of the boiler body, an air outlet is arranged on the outer wall of the boiler body, flue gas flows out to the outside through the air outlet, when the flue gas flows out through the air outlet, the flue gas can exert an outward acting force on a net frame, the net frame vibrates back and forth in a fixing ring under the elastic force of a spring and the acting force of the flue gas, and meanwhile, a metal impact block inside the fixing ring can continuously impact the outer wall of the net frame when the net frame slides back and forth in the fixing ring, so that a filter screen inside the net frame is driven to continuously vibrate during flue gas emission so as to avoid the problem that dust causes mesh blockage to influence emission .

Description

Waste heat boiler for metal recovery

Technical Field

The utility model relates to the technical field of waste heat recovery and utilization, in particular to a waste heat boiler for metal recovery.

Background

Waste heat boilers, as the name implies, refer to boilers that heat water to a certain temperature using waste heat in waste gas, waste material or waste liquid and heat generated by burning combustible materials thereof in various industrial processes. The oil-fired boiler, the gas-fired boiler and the coal-fired boiler with the smoke box and the smoke flue waste heat recovery function are also called waste heat boilers, the waste heat boilers can produce hot water or steam through waste heat recovery to be supplied to other sections for use, but the smoke pipeline is easy to block by soot when the general waste heat boilers are used, so that the problem of troublesome maintenance is caused.

According to the Chinese patent publication (with the publication number of CN 209084733U), the waste heat boiler comprises a shell, a water channel plate and an air bag tank; the inner part of the shell is a cavity, and the two opposite sides of the upper end of the shell are respectively provided with a flue gas inlet and a flue gas outlet; the water channel plate is arranged in the center of the inside of the shell, the top of the water channel plate is connected with the top of the shell, two side edges of the water channel plate are connected with the side wall of the inside of the shell, the upper end of the inside of the shell is separated by the whole water channel plate, the smoke inlet and the smoke outlet are respectively positioned on two sides of the water channel plate, a certain interval exists between the bottom end of the water channel plate and the bottom of the inside of the shell, and the water channel plate and the side wall of the inside of the shell are used for limiting a smoke channel; the air bag tank is arranged at the top of the shell and is communicated with the water channel plate. The shared space of casing is less in this application, and the flue gas can not run out the jam phenomenon, and the heat transfer is respond well.

But when the flue gas passed through the dust filter, the dust filter can filter the dust in the flue gas, but after the boiler was used for a long time, the dust of adhesion can be more and more on the dust filter, and in the flue gas filtering process in later stage, the dust filter probably blockked up by a large amount of dust of adhesion to lead to influencing the exhaust problem of flue gas.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a waste heat boiler for metal recovery, which solves the problems.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a waste heat boiler for metal recovery, including the boiler body, it has into the coal pipe to peg graft in the inside of the feed inlet at boiler body top, the outer wall fixed mounting of boiler body has the gas bag jar, the inside of boiler body is provided with the ash layer, the inside of boiler body is provided with the gasification layer, the air inlet has been seted up to the outer wall of boiler body, the gas outlet has been seted up to the outer wall of boiler body, the inside fixed mounting of gas outlet has solid fixed ring, gu fixed ring's inside is close to the inside fixed position of boiler body and installs two striking pieces, gu fixed ring's outer wall has been seted up two spread grooves, the inner wall fixed mounting of spread groove has the fixed axle, gu fixed ring's inside is provided with the slidable framed, framed inside fixed mounting has the filter screen, the filter screen is the convex circular structure outward.

Preferably, the outer wall of fixed axle is provided with the stopper that can dismantle, and the outer wall fixed mounting of net frame has two sliders, and the outer wall fixed mounting of slider has the lantern ring that can cup joint together with the fixed axle.

Preferably, the inside fixed mounting of spread groove has the spring, and the spring cup joints together with the fixed axle, and the outer wall of the lantern ring is in the same place with the one end fixed connection of spring.

Preferably, a threaded short rod which can be in threaded connection with the fixed shaft is fixedly installed on one side wall surface of the limiting block, which is close to the fixed shaft.

Preferably, the outer wall of the net frame is fixedly provided with two sealing strips, and the sealing strips are of arc structures.

(III) advantageous effects

Compared with the prior art, the utility model provides a waste heat boiler for metal recovery, which has the following beneficial effects:

1. the waste heat boiler for metal recovery comprises a boiler body, a coal inlet pipe, a gasification agent, a gas inlet pipe, a gas outlet pipe, a fixing ring, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein the gas inlet pipe is arranged above the gas inlet pipe, the gas inlet pipe is arranged above the gas inlet pipe, the gas inlet pipe is continuously connected with the gas inlet pipe, the gas inlet pipe is used as the gas inlet pipe is continuously connected with the gas inlet pipe, the gas outlet pipe, the gas inlet pipe is arranged at the gas inlet pipe, the gas outlet pipe, the gas inlet pipe is arranged at the gas outlet pipe, the gas inlet pipe is arranged at the gas outlet pipe is arranged at the gas inlet pipe, the gas inlet pipe is arranged at the gas outlet pipe, the gas outlet pipe is arranged at the gas inlet pipe, the gas outlet pipe, the gas inlet pipe, the gas outlet pipe is arranged at the gas inlet pipe, when the screen frame slides back and forth in the fixing ring, the impact block made of the metal material in the fixing ring can impact the outer wall of the screen frame continuously, and the screen frame is impacted by the impact block to generate certain vibration, so that the filter screen in the screen frame is driven to vibrate continuously to avoid the problem that the filter screen meshes are blocked by dust to influence the emission when the smoke is emitted.

2. This metal is retrieved and is used exhaust-heat boiler, through a side wall fixed mounting that is close to the fixed axle at the stopper have can with fixed axle threaded connection together the screw thread quarter butt, after boiler body uses for a long time, the more dust of possible adhesion on the filter screen, consequently, need regularly wash the filter screen, rotatory screw thread quarter butt, the screw thread quarter butt is in the same place with fixed axle threaded connection, rotate the inside that screw thread quarter butt breaks away from the fixed axle to the screw thread quarter butt, pull the net frame outside the spread groove this moment, the net frame drives the inside that the filter screen breaks away from solid fixed ring, so that carry out the dismouting to the net frame, the filter screen is the convex circular structure outward simultaneously, and the filter screen extends to the outside of net frame always, thereby be convenient for wash the dust on the filter screen.

3. This waste heat boiler for metal recovery, there are two sealing strips through the outer wall fixed mounting at the screen frame, the sealing strip is the arc structure, the sealing strip is the rubber material, the sealing strip can laminate each other with solid fixed ring's inner wall, when the screen frame makes a round trip to slide in solid fixed ring's inside, the sealing strip of screen frame outer wall can laminate each other with solid fixed ring's inner wall to reduce the gap between screen frame outer wall and the solid fixed ring's inner wall and flow to the external world through the gap between solid fixed ring and the screen frame with the inside unfiltered flue gas that reduces.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a half-section of the embodiment of the present invention;

FIG. 3 is a partial perspective view of the present embodiment;

FIG. 4 is a schematic partial perspective exploded view of the present embodiment;

FIG. 5 is a schematic perspective view of a second embodiment of the present invention;

fig. 6 is a three-dimensional schematic view of the present embodiment.

In the figure: 1. a boiler body; 2. a coal inlet pipe; 3. an air bag tank; 4. an air outlet; 5. an air inlet; 6. a layer of ash; 7. a gasification layer; 8. a fixing ring; 9. a screen frame; 10. a filter screen; 11. connecting grooves; 12. a limiting block; 13. a slider; 14. a fixed shaft; 15. an impact block; 16. a spring; 17. a collar; 18. a threaded stub; 19. a sealing strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1-4, a waste heat boiler for metal recovery comprises a boiler body 1, the boiler body 1 is of a hollow structure, a coal inlet pipe 2 is inserted into the interior of a feed inlet at the top of the boiler body 1, an air bag tank 3 is fixedly installed on the outer wall of the boiler body 1, an ash layer 6 is arranged inside the boiler body 1, a gasification layer 7 is arranged inside the boiler body 1, an air inlet 5 is arranged on the outer wall of the boiler body 1, the air inlet 5 is a circular through hole, the air inlet 5 is positioned at the lower end of the outer wall of the boiler body 1, an air outlet 4 is arranged on the outer wall of the boiler body 1, the air outlet 4 is a circular through hole, the air outlet 4 is positioned at the upper end of the outer wall of the boiler body 1, a fixing ring 8 is fixedly installed inside the air outlet 4, the fixing ring 8 is of a circular structure, two impact blocks 15 are fixedly installed at the positions, close to the interior of the boiler body 1, inside the fixing ring 8, the impact block 15 is made of metal, the outer wall of the fixing ring 8 is provided with two connecting grooves 11, the connecting grooves 11 are grooves with a cross section of three-quarter circles, the inner hollow area of each connecting groove 11 is communicated with the inner wall of the fixing ring 8, the inner wall of each connecting groove 11 is fixedly provided with a fixing shaft 14, each fixing shaft 14 is of a cylindrical hollow structure, the inner circular wall surface of each fixing shaft 14 is provided with an internal thread, the outer wall of each fixing shaft 14 is provided with a detachable limiting block 12, the outer diameter of each fixing shaft 14 is one half of the outer diameter of the limiting block 12, the inside of each connecting groove 11 is fixedly provided with a spring 16, the spring 16 is sleeved with the fixing shaft 14, a slidable net frame 9 is arranged inside the fixing ring 8, the net frame 9 is of a circular structure, a filter screen 10 is fixedly arranged inside the net frame 9, the filter screen 10 is of an outward-protruding circular structure, and the filter screen 10 extends to the outer side of the net frame 9, two sliders 13 are fixedly mounted on the outer wall of the net frame 9, the sliders 13 are arc-shaped blocks, lantern rings 17 which can be sleeved with the fixed shaft 14 are fixedly mounted on the outer wall of the sliders 13, the lantern rings 17 are of circular ring structures, and the outer walls of the lantern rings 17 are fixedly connected with one ends of the springs 16.

The working principle is as follows: raw material coal is continuously added into a coal inlet pipe 2 above a boiler body 1, steam and air as a gasifying agent are sent in from an air inlet 5, the air and the steam continue to rise after being preheated through an ash layer, oxygen in the air and incandescent coke are subjected to combustion reaction in a gasifying layer to emit a large amount of heat, when smoke is discharged, the smoke flows out to the outside through an air outlet 4, a slidable net frame 9 is arranged in a fixing ring 8, meanwhile, a filter screen 10 in the net frame 9 can filter the smoke, when the smoke flows out through the air outlet 4, the smoke can exert an outward acting force on the net frame 9, at the moment, a sliding block 13 on the outer wall of the net frame 9 drives a lantern ring 17 to slide on the outer wall of a fixing shaft 14, a spring 16 in a connecting groove 11 is continuously stretched and compressed, at the moment, the net frame 9 vibrates back and forth in the fixing ring 8 under the elastic force of the spring 16 and the acting force of the smoke, simultaneously, when the net frame 9 slides back and forth in the fixing ring 8, the impact block 15 made of metal material in the fixing ring 8 can impact the outer wall of the net frame 9 continuously, the net frame 9 is impacted by the impact block 15 to generate certain vibration, and the filter screen 10 in the net frame 9 is driven to vibrate continuously to avoid the problem that the dust causes the mesh of the filter screen 10 to be blocked and the emission is influenced when the smoke is discharged.

Example two: on the basis of the first embodiment, as shown in fig. 5, a threaded short rod 18 capable of being in threaded connection with the fixed shaft 14 is fixedly installed on one side wall surface of the limit block 12 close to the fixed shaft 14, the threaded short rod 18 is of a cylindrical structure, and external threads are formed on the outer circular wall surface of the threaded short rod 18.

The working principle is as follows: through a side wall fixed mounting that is close to fixed axle 14 at stopper 12 there is the screw thread quarter butt 18 that can be in the same place with fixed axle 14 threaded connection, after boiler body 1 uses for a long time, probably the more dust of adhesion on the filter screen 10, consequently, need regularly wash filter screen 10, rotatory screw thread quarter butt 18, screw thread quarter butt 18 is in the same place with fixed axle 14 threaded connection, rotate screw thread quarter butt 18 to the inside that screw thread quarter butt 18 breaks away from fixed axle 14, pull screen frame 9 outside spread groove 11 this moment, screen frame 9 drives filter screen 10 and breaks away from the inside of solid fixed ring 8, so that carry out the dismouting to screen frame 9, filter screen 10 is the convex circular structure outward simultaneously, and filter screen 10 extends to the outside of screen frame 9 always, thereby be convenient for wash the dust on the filter screen 10.

Example three: on the basis of the first embodiment, as shown in fig. 6, two sealing strips 19 are fixedly mounted on the outer wall of the net frame 9, the sealing strips 19 are of an arc-shaped structure, the sealing strips 19 are made of rubber, and the sealing strips 19 can be attached to the inner wall of the fixing ring 8.

The working principle is as follows: there are two sealing strips 19 through outer wall fixed mounting at screen frame 9, sealing strip 19 is the arc structure, sealing strip 19 is the rubber material, sealing strip 19 can laminate each other with solid fixed ring 8's inner wall, when screen frame 9 makes a round trip to slide in solid fixed ring 8's inside, sealing strip 19 of screen frame 9 outer wall can laminate each other with solid fixed ring 8's inner wall to reduce the gap between screen frame 9 outer wall and the solid fixed ring 8's inner wall and flow to the external world through the gap between solid fixed ring 8 and the screen frame 9 with the inside unfiltered flue gas that reduces.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waste heat boiler for metal recovery, includes boiler body (1), the inside of the feed inlet at boiler body (1) top is pegged graft and is had into coal pipe (2), and the outer wall fixed mounting of boiler body (1) has gas bag jar (3), and the inside of boiler body (1) is provided with ash layer (6), and the inside of boiler body (1) is provided with gasification layer (7), and air inlet (5) have been seted up to the outer wall of boiler body (1), and gas outlet (4), its characterized in that have been seted up to the outer wall of boiler body (1): the utility model discloses a boiler, including boiler body (1), fixed ring (8), fixed ring's (8) inside fixed position that is close to inside fixed position of boiler body (1) has two striking pieces (15), two spread grooves (11) have been seted up to the outer wall of fixed ring (8), the inner wall fixed mounting of spread groove (11) has fixed axle (14), the inside of fixed ring (8) is provided with slidable net frame (9), the inside fixed mounting of net frame (9) has filter screen (10), filter screen (10) are the circular structure of evagination.

2. The metal recovery waste heat boiler as set forth in claim 1, wherein: the outer wall of the fixed shaft (14) is provided with a detachable limiting block (12), the outer wall of the net frame (9) is fixedly provided with two sliding blocks (13), and the outer wall of each sliding block (13) is fixedly provided with a sleeve ring (17) which can be sleeved with the fixed shaft (14).

3. The metal recovery waste heat boiler as set forth in claim 2, wherein: the spring (16) is fixedly installed inside the connecting groove (11), the spring (16) is sleeved with the fixing shaft (14), and the outer wall of the lantern ring (17) is fixedly connected with one end of the spring (16).

4. The metal recovery waste heat boiler as set forth in claim 2, wherein: and a threaded short rod (18) which can be in threaded connection with the fixed shaft (14) is fixedly arranged on one side wall surface of the limiting block (12) close to the fixed shaft (14).

5. The metal recovery waste heat boiler as set forth in claim 1, wherein: the outer wall fixed mounting of screen frame (9) has two sealing strips (19), and sealing strip (19) are the arc structure.