CN215893277U - RKEF multi-wire flue gas waste heat utilization device - Google Patents

Abstract

The utility model discloses a RKEF multi-line flue gas waste heat utilization device which comprises a kiln head air mixing chamber, wherein the kiln head air mixing chamber is connected with an air inlet pipe, the air inlet pipe is connected with a connecting pipe, an induced draft fan is arranged on the connecting pipe, a first regulating valve is arranged between the kiln head air mixing chamber and a heat supplementing air mixing chamber, the heat supplementing air mixing chamber is connected with a vertical coal mill through the connecting pipe, a cold air continuous regulating valve is arranged between the heat supplementing air mixing chamber and the vertical coal mill, and the first regulating valve and the cold air continuous regulating valve are connected with the connecting pipe. This multi-thread flue gas waste heat utilization equipment of RKEF adopts a plurality of kiln head plenum to provide the flue gas, compares in traditional single production line waste heat utilization, and stability is higher, and the flexibility is stronger, cooperates the flue gas processing structure, realizes the drying and purification to the flue gas, avoids the flue gas to lead to the fact the damage to vertical coal pulverizer, cooperates steady voltage mechanism, can guarantee the stability of flue gas flow.

Description

RKEF multi-wire flue gas waste heat utilization device

Technical Field

The utility model relates to the technical field of flue gas waste heat utilization devices, in particular to an RKEF multi-line flue gas waste heat utilization device.

Background

A large amount of high-temperature flue gas is generated in the ferronickel production process, so that in order to avoid energy waste, the flue gas is generally recycled to realize the effects of energy conservation and emission reduction, and the existing flue gas waste heat utilization device has certain defects when in use;

according to the flue gas waste heat utilization device of the industrial silicon furnace disclosed in the publication CN212806579U, high-temperature flue gas exhausted by the silicon furnace can pass through the heat preservation water tank through the arrangement of the structures such as the heat preservation water tank, the rectangular connecting pipe, the air guide coil pipe, the heat conducting fins and the like, so that water in the heat preservation water tank can be uniformly heated …, the fixing frame can be driven to run left and right in a circulating manner when the motor runs, impurities attached to the filter screen are shaken off, and the permeability of gas transmission is effectively ensured;

this prior art solution also exists when used:

1. the flue gas is inconvenient to be stabilized, so that the flow of the flue gas in the pipeline is unstable, and the utilization of waste heat is influenced;

2. when dust removal is carried out, the dust removal mechanism is inconvenient to clean, so that the normal operation of later dust removal is influenced, and the like;

improvements are needed to address the above problems.

Disclosure of Invention

The utility model aims to provide a RKEF multi-wire flue gas waste heat utilization device to solve the problems that the pressure of flue gas is inconvenient to be stabilized and the pressure of the flue gas is inconvenient to be stabilized in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a multi-thread flue gas waste heat utilization equipment of RKEF, includes:

the kiln head air mixing chamber is connected with the air inlet pipe, the air inlet pipe is connected with the connecting pipe, the connecting pipe is provided with an induced draft fan, the connecting pipe is connected with the heat supplementing air mixing chamber, a first regulating valve is arranged between the air mixing chamber and the heat supplementing air mixing chamber, the heat supplementing air mixing chamber is connected with a vertical coal mill through the connecting pipe, a cold air continuous regulating valve is arranged between the heat supplementing air mixing chamber and the vertical coal mill, the first regulating valve and the cold air continuous regulating valve are connected with the connecting pipe, and an ash cleaning opening is formed in the lower end of the kiln head air mixing chamber;

the water pump is fixed on the kiln head air mixing chamber, is connected with the hydrogen peroxide spray heads through a water pipe and is fixed on the kiln head air mixing chamber at equal intervals;

and the dehumidification plate is fixed on the kiln head air mixing chamber, a movable plate is arranged on the side edge of the dehumidification plate, and the movable plate is connected to the kiln head air mixing chamber in a sliding manner.

Preferably, the kiln head air mixing chamber is connected with a rotating shaft through a bearing, and the rotating shaft is symmetrically fixed with a fixing plate, so that when dust is removed, the basic guarantee of automatically cleaning dust is realized through the rotating action of the rotating shaft.

Preferably, the fixed plate is connected with a rotatable dust removing plate through a columnar shaft, the dust removing plate is connected with the fixed plate through a torsion spring, and the dust removing plate can vibrate under the rotation action of the dust removing plate and the elastic action of the torsion spring, so that dust on the dust removing plate falls off.

Preferably, the sides of the dust removing plates are symmetrically provided with protruding rods, the protruding rods and the dust removing plates can slide, the protruding rods are fixed on the kiln head air mixing chamber, and when the protruding rods are in contact with the dust removing plates, a basic acting force is provided for rotation of the dust removing plates.

Preferably, dust removal board, hydrogen peroxide shower nozzle and dehumidification board are for once distributing from left to right, and the dehumidification board is network structure, through above-mentioned structure, realize dust removal, denitration and the drying to the flue gas to realize the purification of flue gas, avoid the produced secondary harm of flue gas.

Preferably, a sealing plug and a first spring are further arranged on the movable plate;

the sealing plug is fixed on the movable plate, and the sealing plug and an opening at the right end of the sealing plug form a sealing mechanism;

the first springs are symmetrically fixed on the movable plate, the other ends of the first springs are fixed on the kiln head air mixing chamber, and the pressure stabilizing mechanism is formed by the first springs, so that the pressure in the kiln head air mixing chamber is ensured, the flowing stability of smoke is ensured, and the normal utilization of waste heat is further ensured.

Compared with the prior art, the utility model has the beneficial effects that: this multi-thread flue gas waste heat utilization equipment of RKEF adopts a plurality of kiln head plenum to provide the flue gas, compares in traditional single production line waste heat utilization, and stability is higher, and the flexibility is stronger, cooperates the flue gas processing structure, realizes the drying and purification to the flue gas, avoids the flue gas to lead to the fact the damage to vertical coal pulverizer, cooperates steady voltage mechanism, can guarantee the stability of flue gas flow.

1. When carrying out the flue gas dusting, drive the dust removal board through the flue gas and rotate, when the contact of dust removal board and nose bar, the dust removal board atress rotates, and when the separation of dust removal board and nose bar, the dust removal board resumes the normal position and produces vibrations under torque spring's effect to the realization is to the automatic cleaning effect of dust removal board, guarantees the normal clear-up of flue gas dusting.

2. When the smoke generation amount is less, the sealing is realized through the action of the sealing plug, so that the smoke is stored in the kiln head air mixing chamber until the pressure in the kiln head air mixing chamber reaches a certain value, at the moment, the movable plate is moved under the action of the pressure to facilitate the circulation of the smoke, and the stability of the smoke in the connecting pipe is ensured through the action of the plurality of kiln head air mixing chambers.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic structural view of a front section of a wind mixing chamber of a kiln head according to the utility model;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 5 is a schematic top view of a cross-sectional structure of the spindle according to the present invention;

FIG. 6 is a schematic view of the overall flow structure of the present invention.

In the figure: 1. a kiln head air mixing chamber; 2. an air inlet pipe; 3. a connecting pipe; 4. an induced draft fan; 5. a first regulating valve; 6. a heat supplementing air mixing chamber; 7. a cold air continuous regulating valve; 8. a vertical coal mill; 9. cleaning the ash hole; 10. A water pump; 11. a rotating shaft; 1101. a fixing plate; 12. a dust removal plate; 13. a torsion spring; 14. a water pipe; 15. a hydrogen peroxide showerhead; 16. a dehumidification plate; 17. a nose bar; 18. a movable plate; 1801. a sealing plug; 1802. a first spring.

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.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a multi-thread flue gas waste heat utilization equipment of RKEF, includes:

the kiln head air mixing chamber 1 is connected with an air inlet pipe 2, the air inlet pipe 2 is connected with a connecting pipe 3, an induced draft fan 4 is arranged on the connecting pipe 3, the connecting pipe 3 is connected with a heat supplementing air mixing chamber 6, a first adjusting valve 5 is arranged between the kiln head air mixing chamber 1 and the heat supplementing air mixing chamber 6, the heat supplementing air mixing chamber 6 is connected with a vertical coal mill 8 through the connecting pipe 3, a cold air continuous adjusting valve 7 is arranged between the heat supplementing air mixing chamber 6 and the vertical coal mill 8, the first adjusting valve 5 and the cold air continuous adjusting valve 7 are connected with the connecting pipe 3, and an ash cleaning port 9 is formed in the lower end of the kiln head air mixing chamber 1;

the water pump 10 is fixed on the kiln head air mixing chamber 1, the water pump 10 is mutually connected with the hydrogen peroxide spray head 15 through a water pipe 14, and the hydrogen peroxide spray heads 15 are fixed on the kiln head air mixing chamber 1 at equal intervals;

the dehumidifying plate 16 is fixed on the kiln head air mixing chamber 1, a movable plate 18 is arranged on the side edge of the dehumidifying plate 16, and the movable plate 18 is connected on the kiln head air mixing chamber 1 in a sliding mode.

The kiln head air mixing chamber 1 is connected with a rotating shaft 11 through a bearing, and fixing plates 1101 are symmetrically fixed on the rotating shaft 11; a rotatable dust removing plate 12 is connected to the fixing plate 1101 through a cylindrical shaft, and the dust removing plate 12 is connected with the fixing plate 1101 through a torsion spring 13; the side edge of the dust removing plate 12 is symmetrically provided with convex rods 17, the convex rods 17 and the dust removing plate 12 can slide, and the convex rods 17 are fixed on the kiln head air mixing chamber 1; the dust removing plate 12, the hydrogen peroxide spray head 15 and the dehumidifying plate 16 are distributed once from left to right, and the dehumidifying plate 16 is of a net structure.

When the device is used, the whole device is firstly connected and installed according to the figure 1, high-temperature flue gas firstly enters the kiln head air mixing chamber 1 through the air inlet pipe 2, under the action of the airflow, the dust-removing plate 12 is driven to rotate, so as to realize the adsorption effect on the dust in the flue gas, and in the rotating process of the dust-removing plate 12, when the dust removing plate 12 is brought into contact with the protruding rod 17, the dust removing plate 12 is forced to rotate around the fixing plate 1101, when the dust removing plate 12 is separated from the protruding rod 17, the dust removing plate 12 is restored to the original position by the torsion spring 13, and then make dust removal board 12 produce vibrations, realize the automatic clearance to dust removal board 12 bonding dust, the flue gas through the ash removal flows backward, carries solution to hydrogen peroxide shower nozzle 15 through the effect of water pump 10 and water pipe 14 this moment, realizes the flue gas denitration effect, and the flue gas that has advanced dust removal denitration at last carries out the drying through dehumidification board 16, guarantees the clean of flue gas.

The movable plate 18 is further provided with a sealing plug 1801 and a first spring 1802; the sealing plug 1801 is fixed on the movable plate 18, and the sealing plug 1801 and the right end opening of the sealing plug 1801 form a sealing mechanism; and the first spring 1802 is symmetrically fixed on the movable plate 18, and the other end of the first spring 1802 is fixed on the kiln head air mixing chamber 1.

The treated flue gas is conveyed backwards through the connecting pipe 3, enters the heat supplementing air mixing chamber 6 under the action of the draught fan 4, is heated through the heat supplementing air mixing chamber 6 to ensure the temperature of the flue gas, and finally realizes the temperature regulation through the action of the cold air continuous regulating valve 7, so that the temperature of the flue gas is ensured to be more than 220 ℃ when the flue gas enters the vertical coal mill 8, thereby ensuring the normal operation of the vertical coal mill 8, when the concentration of the flue gas in the kiln head air mixing chamber 1 is lower, the sealing plug 1801 realizes the sealing of an outlet under the action of the first spring 1802, the instability of the operation of the device caused by the insufficient flue gas is avoided, the complementation can be realized through the action of a plurality of kiln head air mixing chambers 1, the mutual switching is realized through the action of the first regulating valve 5, thereby the normal operation of the device is ensured, through the design, on the basis of not increasing the cost, the normal production of the heat using equipment is ensured, but also saves the energy consumption of the heat-compensating furnace.

The working principle is as follows: as shown in figures 1-6, when the device is used, firstly, the whole device is connected and installed according to the figure 1, high-temperature flue gas firstly enters a kiln head air mixing chamber 1 through an air inlet pipe 2, flue gas dust removal is realized through the rotation of a dust removal plate 12 under the action of air flow, the automatic cleaning action of the dust removal plate 12 is realized through the action of a convex rod 17 and a torsion spring 13, denitration is realized through spraying solution by a hydrogen peroxide spray head 15, drying is realized through a dehumidification plate 16, the cleanness of the flue gas is ensured, finally, the flue gas enters a heat supplementing air mixing chamber 6 for warming, temperature regulation is realized through the action of a cold air continuous regulating valve 7, the temperature of the flue gas entering a vertical coal pulverizer 8 is ensured to be more than 220 ℃, further, the normal operation of the vertical coal pulverizer 8 is ensured, and when the flue gas is insufficient, the mutual switching of the kiln head air mixing chamber 1 is realized through the action of an automatic sealing mechanism and a first regulating valve 5, therefore, the smoke amount is ensured, the normal operation of the vertical coal mill 8 is further ensured, through the design, on the basis of not increasing the cost, the normal production of heat utilization equipment is ensured, and the energy consumption problem of the heat compensation furnace is also solved, namely the working principle of the RKEF multi-line smoke waste heat utilization device.

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 (6)

1. The utility model provides a multi-thread flue gas waste heat utilization equipment of RKEF which characterized in that includes:

the kiln head air mixing chamber is connected with the air inlet pipe, the air inlet pipe is connected with the connecting pipe, the connecting pipe is provided with an induced draft fan, the connecting pipe is connected with the heat supplementing air mixing chamber, a first regulating valve is arranged between the kiln head air mixing chamber and the heat supplementing air mixing chamber, the heat supplementing air mixing chamber is connected with a vertical coal mill through the connecting pipe, a cold air continuous regulating valve is arranged between the heat supplementing air mixing chamber and the vertical coal mill, the first regulating valve and the cold air continuous regulating valve are connected with the connecting pipe, and the lower end of the kiln head air mixing chamber is provided with an ash cleaning opening;

the water pump is fixed on the kiln head air mixing chamber, is connected with the hydrogen peroxide spray heads through a water pipe and is fixed on the kiln head air mixing chamber at equal intervals;

and the dehumidification plate is fixed on the kiln head air mixing chamber, a movable plate is arranged on the side edge of the dehumidification plate, and the movable plate is connected to the kiln head air mixing chamber in a sliding manner.

2. The RKEF multi-wire flue gas waste heat utilization device according to claim 1, wherein: the kiln head air mixing chamber is connected with a rotating shaft through a bearing, and fixing plates are symmetrically fixed on the rotating shaft.

3. The RKEF multi-wire flue gas waste heat utilization device according to claim 2, wherein: the fixed plate is connected with a rotatable dust removing plate through a columnar shaft, and the dust removing plate is connected with the fixed plate through a torsion spring.

4. The RKEF multi-wire flue gas waste heat utilization device according to claim 3, wherein: the side edges of the dust removing plates are symmetrically provided with convex rods, the convex rods and the dust removing plates can slide, and the convex rods are fixed on the kiln head air mixing chamber.

5. The RKEF multi-wire flue gas waste heat utilization device according to claim 4, wherein: the dust removal plate, the hydrogen peroxide spray head and the dehumidifying plate are distributed once from left to right, and the dehumidifying plate is of a net structure.

6. The RKEF multi-wire flue gas waste heat utilization device according to claim 1, wherein: the movable plate is also provided with a sealing plug and a first spring;

the sealing plug is fixed on the movable plate, and the sealing plug and an opening at the right end of the sealing plug form a sealing mechanism;

and the first springs are symmetrically fixed on the movable plate, and the other ends of the first springs are fixed on the kiln head air mixing chamber.

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