CN219454792U

CN219454792U - Comprehensive recovery roasting kiln waste heat utilization device for neodymium iron boron waste

Info

Publication number: CN219454792U
Application number: CN202320445248.3U
Authority: CN
Inventors: 邱光怀; 康亮
Original assignee: Jiangsu Guoyuan Rare Earth New Material Co ltd
Current assignee: Jiangsu Guoyuan Rare Earth New Material Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-08-01
Anticipated expiration: 2033-03-10

Abstract

The utility model relates to the technical field of neodymium iron boron materials, and discloses a device for comprehensively recovering and roasting kiln waste heat from neodymium iron boron waste, which comprises a recovery shell, wherein an air inlet pipe and an air outlet pipe are respectively and fixedly arranged at two ends of the recovery shell, a heat preservation frame is fixedly arranged in the middle of the inner wall of the periphery of the recovery shell, a heat storage sleeve is arranged on the inner wall of the heat preservation frame, a flow guide cavity is arranged between two ends of the heat preservation frame and two ends of the heat storage sleeve, and a plurality of rows of honeycomb holes which are distributed in an annular shape at equal distance are formed in the inner wall of the circumference of the flow guide cavity and the inside of the heat storage sleeve. This kiln waste heat utilization device is roasted in comprehensive recovery of neodymium iron boron waste material is convenient for carry out abundant recovery processing to the waste heat, and the energy saving reaches energy saving and emission reduction's effect to utilize the filter screen to filter the exhaust air current, impurity such as the dust of detach air current, make whole device have heat accumulation function, avoid the waste heat to discharge along with the discharge of air, improve whole device's waste heat utilization ratio.

Description

Comprehensive recovery roasting kiln waste heat utilization device for neodymium iron boron waste

Technical Field

The utility model relates to the technical field of neodymium iron boron materials, in particular to a device for comprehensively recycling waste heat of a roasting kiln by neodymium iron boron waste materials.

Background

Neodymium iron boron and permanent magnet materials have excellent performance, are widely applied to the fields of automobiles, household appliances, wind power, consumer electronics and the like, and are the most important permanent magnet materials in the current market. In recent years, with the vigorous development of fields such as electronic information industry, wind power and new energy automobiles, the demand for neodymium iron boron is increased, the annual output of sintered neodymium iron boron is increased gradually, a large amount of production waste is generated in the production process of sintered neodymium iron boron, meanwhile, more and more electromechanical equipment containing neodymium iron boron magnets is scrapped, a large amount of neodymium iron boron waste is generated, the waste has recycling value, and in the recycling and sintering process, a large amount of waste heat is generated in the sintering process of a roasting kiln, and the waste heat is directly discharged into the air along with air flow, so that environmental pollution is caused.

Through searching, a neodymium iron boron waste comprehensive recovery roasting kiln waste heat utilization device with the publication number of CN206670383U comprises a sealing tank, a circulating network pipe and a base, wherein an air inlet pipe is fixed on the upper part of the sealing tank, an air inlet cover is connected to the air inlet pipe, an air inlet hole is formed in the air inlet cover, and filter cotton is arranged between the air inlet cover and the air inlet pipe; the sealing tank is characterized in that connecting seats are respectively fixed on two sides of the interior of the sealing tank, connecting plates are fixed on the connecting seats, the circulating network pipes are fixed on the fixing plates, a plurality of circulating network pipes sequentially penetrate through a plurality of fixing plates, and two sides of each fixing plate are fixed with the connecting plates.

However, the prior art patents suffer from the following drawbacks: in the prior art, when waste heat generated when neodymium iron boron waste is recycled is used for heating water, because the air circulation rate is high, some heat which is not absorbed by moisture is discharged along with the discharge of air, and the whole device does not have a heat storage function, so that the waste heat utilization rate of the whole device is low, and therefore, the design of a comprehensive neodymium iron boron waste recycling roasting kiln waste heat utilization device is needed to solve the problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a device for comprehensively recovering waste heat of a roasting kiln from neodymium iron boron waste, which solves the problem that the waste heat utilization rate of the whole device is low because the air circulation rate is high, some heat which is not absorbed by moisture is discharged along with the discharge of air, and the whole device does not have a heat storage function.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a neodymium iron boron waste material is synthesized and is retrieved kiln waste heat utilization device, includes retrieves the shell, the both ends of retrieving the shell are fixed mounting respectively has intake pipe and blast pipe, and retrieve the inner wall intermediate position fixed mounting all around of shell and have the heat preservation frame, and the inner wall of heat preservation frame is provided with the heat accumulation cover, has seted up the water conservancy diversion chamber between the both ends of heat preservation frame and the both ends of heat accumulation cover, and the honeycomb hole that the multiseriate equidistance is annular distribution has been seted up with the inside of heat accumulation cover to the circumference inner wall in water conservancy diversion chamber, the inside in water conservancy diversion chamber and the inside of retrieving the shell are provided with cold water drainage subassembly, and retrieve the one end inner wall that the shell is close to the blast pipe and be provided with filtering component.

Further, cold water drainage subassembly includes fixed mounting at the inlet tube of retrieving shell top one end, and retrieves the bottom one end fixed mounting of shell and have the drain pipe, is fixed with the equidistance between the one end of drain pipe and the one end of inlet tube and is annular distributed's shunt tubes, and the shunt tubes is U type form, and the inside in water conservancy diversion chamber is arranged in to the shunt tubes, all be provided with the valve on the inlet tube and on the drain pipe.

Further, filter assembly includes fixed mounting at the filter of retrieving shell inner wall one end, and has offered the equidistance on the filter and be the filtration mouth that annular distributes, and the inner wall of filtration mouth all is fixed with the filter screen, the through-hole has been seted up to the intermediate position of filter, and the inner wall of through-hole has the pivot through bearing connection, and the pivot is close to the one end fixed mounting flabellum of blast pipe, and the other end of pivot is fixed with the laminating and scrapes the material frame in filter screen one side.

Further, retrieve shell and be close to the bottom inner wall one end of filter and be fixed with the oblique seat of unloading, and retrieve the shell and be close to the bottom one end of the oblique seat of unloading and seted up the waste gate, the inner wall of waste gate is fixed with the waste calandria, the bottom fixed mounting of waste calandria has the waste collection box, one side of waste collection box is provided with the chamber door.

Further, the heat storage sleeve is made of phase-change energy storage heat storage materials.

Further, a temperature measuring instrument is fixedly arranged in the middle of the outer wall of one side of the recovery shell, and a detection needle in the diversion cavity of the plugging strip is arranged on the temperature measuring instrument.

(III) beneficial effects

The utility model provides a device for comprehensively recycling waste heat of a roasting kiln by neodymium iron boron waste, which has the following beneficial effects:

1. this kiln waste heat utilization device is baked in comprehensive recovery of neodymium iron boron waste material, introduce the waste heat that the kiln produced in the neodymium iron boron roasting into retrieve the shell through the intake pipe in, heat inlet tube in retrieving the shell and the intraductal moisture of distributive, because of the quantity of distributive pipe is more, can make heat area of contact big, heat transfer efficiency is high, thereby be convenient for carry out abundant recovery processing to the waste heat, the energy saving reaches energy saving and emission reduction's effect, and utilize the filter screen to filter the exhaust air current, get rid of impurity such as the dust of air current, recycle waste collection box collects, and will drive the flabellum when the air current is discharged, the pivot is rotatory with scraping the material frame, be convenient for carry out dust removal to the filter screen and handle, make the air current discharge smoothly.

2. This kiln waste heat utilization device is baked in comprehensive recovery of neodymium iron boron waste material utilizes heat preservation frame, heat accumulation cover and the honeycomb hole that sets up, when the hot gas flow enters into the recovery shell, the heat accumulation cover of accessible phase transition energy storage heat accumulation material is collected the heat that is not absorbed by moisture and is handled for whole device has heat accumulation function, avoids waste heat to discharge along with the discharge of air, improves whole device's waste heat utilization ratio.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an overall cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the heat storage jacket and honeycomb cell structure of the present utility model;

FIG. 4 is a schematic view of the water diversion pipe structure of the present utility model;

FIG. 5 is a schematic view of the heat storage jacket and water distribution pipe structure of the present utility model;

fig. 6 is a schematic view of a filter screen and fan blade according to the present utility model.

In the figure: 1. recovering the shell; 2. a temperature measuring instrument; 3. an air inlet pipe; 4. a water inlet pipe; 5. an exhaust pipe; 6. a waste collection box; 7. a door; 8. a drain pipe; 9. a heat preservation frame; 10. a heat storage jacket; 11. a blanking inclined seat; 12. a waste drain; 13. a filter plate; 14. a water diversion pipe; 15. honeycomb holes; 16. a rotating shaft; 17. a filter screen; 18. a fan blade; 19. scraping frame.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a neodymium iron boron waste material comprehensive recovery roasting kiln waste heat utilization device, including retrieving shell 1, retrieve the both ends of shell 1 and have intake pipe 3 and blast pipe 5 respectively fixed mounting, and retrieve the heat preservation frame 9 of inner wall intermediate position fixed mounting all around of shell 1, the inner wall of heat preservation frame 9 is provided with heat accumulation cover 10, the water conservancy diversion chamber has been seted up between the both ends of heat preservation frame 9 and the both ends of heat accumulation cover 10, the honeycomb hole 15 that the circular inner wall in water conservancy diversion chamber is annular distribution with the inside of heat accumulation cover 10 has been seted up to the equidistance, the inside in water conservancy diversion chamber and the inside of retrieving shell 1 are provided with cold water drainage subassembly, and retrieve shell 1 and be provided with filter unit near the one end inner wall of blast pipe 5, collect the heat that is not absorbed by moisture through heat accumulation cover 10 and handle, make whole device have heat accumulation function, avoid the waste heat to discharge along with the discharge of air, improve whole device's waste heat utilization ratio.

Specifically, cold water drainage subassembly includes that fixed mounting is at the inlet tube 4 of retrieving shell 1 top one end, and retrieve the bottom one end of shell 1 and have drain pipe 8, be fixed with the equidistance between the one end of drain pipe 8 and the one end of inlet tube 4 and be annular distribution's shunt tubes 14, shunt tubes 14 are U type form, the inside in water conservancy diversion chamber is arranged in to shunt tubes 14, all be provided with the valve on inlet tube 4 and the drain pipe 8, introduce the waste heat that the kiln produced into retrieving shell 1 through intake pipe 3, heat the inlet tube 4 in retrieving shell 1 and the moisture in shunt tubes 14, because of the quantity of shunt tubes 14 is more, can make heat area of contact big, heat transfer efficiency is high, thereby be convenient for carry out abundant recovery processing to the waste heat, the energy is saved, reach energy saving and emission reduction's effect.

Specifically, filter assembly includes filter 13 of fixed mounting at retrieving shell 1 inner wall one end, and set up the equidistance and be the filtration mouth that annular distributes on the filter 13, the filter screen 17 has all been fixed with to the inner wall of filtration mouth, the through-hole has been seted up to the intermediate position of filter 13, and the inner wall of through-hole is connected with pivot 16 through the bearing, the one end fixed mounting that pivot 16 is close to blast pipe 5 has flabellum 18, the other end of pivot 16 is fixed with the scraping frame 19 of laminating in filter screen 17 one side, utilize filter screen 17 to filter the exhaust air current, remove impurity such as the dust of air current, recycle waste collection box 6 collects, moreover, will drive flabellum 18 during the air current discharge, pivot 16 and scraping frame 19 are rotatory, be convenient for carry out dust removal treatment to filter screen 17, make the air current discharge smoothly.

Specifically, retrieve shell 1 and be close to the bottom inner wall one end of filter 13 and be fixed with the oblique seat 11 of unloading, and retrieve shell 1 and be close to the bottom one end of the oblique seat 11 of unloading and seted up the waste gate, the inner wall of waste gate is fixed with waste calandria 12, the bottom fixed mounting of waste calandria 12 has waste collection box 6, one side of waste collection box 6 is provided with chamber door 7.

Specifically, the heat storage jacket 10 is provided as a phase change energy storage heat storage material.

Specifically, the middle position of the outer wall of one side of the recovery shell 1 is fixedly provided with a temperature measuring instrument 2, the temperature measuring instrument 2 is provided with a detection needle in a guide cavity of the plugging band, and the temperature inside the recovery shell 1 is monitored in real time through the temperature measuring instrument 2.

Detailed descriptions of known functions and known components are omitted in the specific embodiments of the present disclosure, and the operating means adopted to ensure compatibility of the device are consistent with the parameters of the commercial instruments.

In summary, the operation steps of the device for comprehensively recovering and roasting kiln waste heat from neodymium iron boron waste materials are as follows:

when the device is used, waste heat generated by a neodymium iron boron roasting kiln is introduced into the recovery shell 1 through the air inlet pipe 3, moisture in the water inlet pipe 4 and the water distribution pipe 14 in the recovery shell 1 is heated, the heat contact area is large due to the fact that the water distribution pipe 14 is large in quantity, heat transfer efficiency is high, waste heat is convenient to fully recover and treat, energy is saved, the energy saving and emission reduction effect is achieved, the filter screen 17 is utilized to filter discharged air flow, impurities such as dust of the air flow are removed, the waste collection box 6 is utilized to collect the air flow, in addition, the fan blade 18, the rotating shaft 16 and the scraping frame 19 are driven to rotate during air flow discharging, dust removal treatment is facilitated to the filter screen 17, the air flow can be smoothly discharged, the heat storage sleeve 10 which is not absorbed by the moisture is utilized to collect and treat when hot air flow enters the recovery shell 1, the whole device has a heat storage function, the waste heat is prevented from being discharged along with air discharging, and the waste heat utilization rate of the whole device is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 neodymium iron boron waste material comprehensive recovery roasting kiln waste heat utilization device, includes recovery shell (1), its characterized in that: the utility model discloses a heat-preserving device, including recovery shell (1), heat-preserving device, honeycomb hole (15) that the circular inner wall of water-preserving cavity is annular with the inside of heat-preserving cover (10) has been seted up to the circumference inner wall in water-preserving cavity, the inside in water-preserving cavity and the inside of retrieving shell (1) are provided with cold water drainage subassembly, and the one end inner wall that retrieves shell (1) and be close to blast pipe (5) is provided with filtering component.

2. The device for comprehensively recovering and roasting kiln waste heat utilizing neodymium iron boron waste according to claim 1, wherein the device is characterized in that: the cold water drainage assembly comprises a water inlet pipe (4) fixedly arranged at one end of the top of the recovery shell (1), a water outlet pipe (8) is fixedly arranged at one end of the bottom of the recovery shell (1), water distribution pipes (14) which are distributed annularly are fixed between one end of the water outlet pipe (8) and one end of the water inlet pipe (4), the water distribution pipes (14) are U-shaped, the water distribution pipes (14) are arranged in the diversion cavity, and valves are arranged on the water inlet pipe (4) and the water outlet pipe (8).

3. The device for comprehensively recovering and roasting kiln waste heat utilizing neodymium iron boron waste according to claim 2, wherein the device is characterized in that: the filter assembly comprises a filter plate (13) fixedly mounted at one end of the inner wall of the recovery shell (1), filter openings which are distributed annularly are formed in the filter plate (13), filter screens (17) are fixed on the inner wall of the filter openings, through holes are formed in the middle positions of the filter plates (13), the inner walls of the through holes are connected with rotating shafts (16) through bearings, fan blades (18) are fixedly mounted at one ends, close to the exhaust pipes (5), of the rotating shafts (16), and scraping frames (19) attached to one sides of the filter screens (17) are fixed at the other ends of the rotating shafts (16).

4. The device for comprehensively recovering and roasting kiln waste heat utilizing neodymium iron boron waste according to claim 3, wherein the device comprises the following components: the utility model discloses a waste bin, including recovery shell (1), filter (13) and waste bin (6), recovery shell (1) is close to bottom inner wall one end of filter (13) and is fixed with unloading inclined seat (11), and recovery shell (1) is close to bottom one end of unloading inclined seat (11) and has seted up the waste gate, and the inner wall of waste gate is fixed with waste calandria (12), and waste collection box (6) are installed to the bottom fixed mounting of waste calandria (12), and one side of waste collection box (6) is provided with chamber door (7).

5. The device for comprehensively recovering and roasting kiln waste heat utilizing neodymium iron boron waste according to claim 4, wherein the device comprises the following components: the heat storage sleeve (10) is made of a phase-change energy storage heat storage material.

6. The device for comprehensively recovering and roasting kiln waste heat utilizing neodymium iron boron waste according to claim 5, wherein the device comprises the following components: the middle position of the outer wall of one side of the recovery shell (1) is fixedly provided with a temperature measuring instrument (2), and the temperature measuring instrument (2) is provided with a detection needle inserted into the diversion cavity.