CN215593157U

CN215593157U - Flue gas waste heat utilization equipment of praseodymium neodymium tombarthite calcination kiln

Info

Publication number: CN215593157U
Application number: CN202120867685.5U
Authority: CN
Inventors: 杜继成
Original assignee: Inner Mongolia Huazhi Renewable Resources Co ltd
Current assignee: Inner Mongolia Huazhi Renewable Resources Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2022-01-21
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a flue gas waste heat utilization device of a praseodymium-neodymium rare earth calcining kiln, which comprises a horizontally arranged kiln body, wherein a gas pipeline and a flue gas pipeline are arranged on the kiln body; the utility model has the beneficial effects that: the utility model has simple structure, recycles the flue gas waste heat generated by the kiln, preheats the rare earth to be calcined by utilizing the part of the waste heat, improves the calcining efficiency of the rare earth on the basis of saving energy, thereby improving the product quality and being worth of being popularized and used in a large range.

Description

Flue gas waste heat utilization equipment of praseodymium neodymium tombarthite calcination kiln

The technical field is as follows:

the utility model relates to the technical field of praseodymium-neodymium rare earth production, in particular to a flue gas waste heat utilization device of a praseodymium-neodymium rare earth calcining kiln.

Background art:

in praseodymium neodymium production technical field, it is one of the key processes of tombarthite production to calcine to put into gas formula kiln with praseodymium neodymium tombarthite intermediate product, and the gas produces the tombarthite calcination through burning in the kiln is entered into through the gas pipeline during calcination, can produce a large amount of flue gases and pass through the flue gas pipeline and be discharged in this process, and the waste heat of flue gas is not utilized, and the wasting of resources is waited for further improvement urgently.

The utility model has the following contents:

the utility model aims to provide a flue gas waste heat utilization device of a praseodymium-neodymium rare earth calcining kiln.

The utility model comprises the following contents: a flue gas waste heat utilization device of a praseodymium-neodymium rare earth calcining kiln comprises a kiln body which is horizontally arranged, a gas pipeline and a flue gas pipeline are installed on the kiln body, a roller way device is arranged at an inlet of the kiln body, an inverted U-shaped waste heat cover covers the roller way device, one end of the waste heat cover is attached to the kiln body, a U-shaped flue with an opening at the bottom end is arranged in the waste heat cover, a flange plate is horizontally and fixedly installed at the bottom of the waste heat cover, the flange plate is fixedly installed on a horizontally arranged sealing substrate, the sealing substrate seals the U-shaped flue, supporting legs are installed at the bottom end of the sealing substrate, a U-shaped partition plate is further installed in the U-shaped flue, the U-shaped flue is divided into a first waste heat flue and a second waste heat flue by the partition plate, and flue gas circulation holes are horizontally formed in the two end positions of the bottom of the partition plate, the waste heat energy recovery device is characterized in that a smoke inlet pipeline and a smoke outlet pipeline are installed at the top end of the waste heat cover, one end of the smoke inlet pipeline is connected with the smoke pipeline, the other end of the smoke inlet pipeline is communicated with the first waste heat flue, the second waste heat flue is communicated with the smoke outlet pipeline, a drain pipe is further installed at the bottom end of the waste heat cover, and a water valve is installed on the drain pipe.

Furthermore, a cleaning pipeline is arranged on the waste heat cover, and a valve is arranged on the cleaning pipeline.

The utility model has the beneficial effects that: the utility model has simple structure, recycles the flue gas waste heat generated by the kiln, preheats the rare earth to be calcined by utilizing the part of the waste heat, improves the calcining efficiency of the rare earth on the basis of saving energy, thereby improving the product quality and being worth of being popularized and used in a large range.

Description of the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the waste heat hood of the present invention;

FIG. 3 is a bottom view of the waste heat hood of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along B-A of FIG. 3;

in the figure: the device comprises a kiln body 1, a gas pipeline 2, a flue gas pipeline 3, a roller way device 4, a waste heat cover 5, a partition plate 6, a first waste heat flue 7, a second waste heat flue 8, a flange plate 9, a sealing base plate 10, a smoke inlet pipeline 11, a smoke outlet pipeline 12, a water discharge pipe 13, a cleaning pipeline 14 and a flue gas flow through hole 15.

The specific implementation mode is as follows:

as shown in figures 1 to 5, a flue gas waste heat utilization equipment of praseodymium neodymium tombarthite calcination kiln, it includes the kiln body 1 that the level set up install gas pipeline 2, flue gas pipeline 3 on the kiln body 1 the entrance of kiln body 1 is provided with roller device 4 is covered with the waste heat cover 5 that is the inversion U-shaped on the roller device 4, the one end of waste heat cover 5 with kiln body 1 laminates mutually be provided with the U-shaped flue of bottom open-ended in the waste heat cover 5 the horizontal fixed mounting in bottom of waste heat cover 5 has flange board 9, flange board 9 fixed mounting is on the sealing substrate 10 of level setting, sealing substrate 10 will the U-shaped flue is sealed, the stabilizer blade is installed to sealing substrate 10's bottom still install the baffle 6 of U-shaped in the U-shaped flue, baffle 6 will the flue is cut apart to the U-shaped into first waste heat flue 7, A second waste heat flue 8, wherein both ends of the bottom of the partition plate 6 are horizontally provided with flue gas flow through holes 15, the top end of the waste heat cover 5 is provided with a flue gas inlet pipeline 11 and a flue gas outlet pipeline 12, one end of the flue gas inlet pipeline 11 is connected with the flue gas pipeline 3, the other end of the flue gas inlet pipeline 11 is communicated with the first waste heat flue 7, the second waste heat flue 8 is communicated with the flue gas outlet pipeline 12, the bottom end of the waste heat cover 5 is also provided with a drain pipe 13, and the drain pipe 13 is provided with a water valve; a cleaning pipeline 14 is arranged on the waste heat cover 5, and a valve is arranged on the cleaning pipeline 14.

The working principle is as follows: the flue gas generated by the kiln sequentially passes through a flue gas pipeline 3, a flue gas inlet pipeline 11, a first waste heat flue 7, a flue gas flow through hole 15, a second waste heat flue 8 and a flue gas outlet pipeline 12; the rare earth to be calcined which moves forwards on the roller bed device 4 is heated, and a good preheating effect is achieved; after long-time use, the steam that the production of calcining the tombarthite can form ponding at waste heat cover 5, can regularly discharge or retrieve through drain pipe 13, when needs clearance waste heat cover 5, can dismantle flange plate 9 and sealing substrate 10, connects high-pressure squirt or compressed air in clean pipeline 14 department, and dirt such as dust can be followed the U-shaped flue and discharged.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flue gas waste heat utilization equipment of praseodymium neodymium tombarthite calcination kiln, its kiln body (1) that includes the level setting install gas pipeline (2), flue gas pipeline (3) on kiln body (1) the entrance of kiln body (1) is provided with roll table device (4), its characterized in that: the roller way device (4) is covered with a waste heat cover (5) in an inverted U shape, one end of the waste heat cover (5) is attached to the kiln body (1), a U-shaped flue with an open bottom end is arranged in the waste heat cover (5), a flange plate (9) is horizontally and fixedly arranged at the bottom of the waste heat cover (5), the flange plate (9) is fixedly arranged on a sealing base plate (10) horizontally arranged, the sealing base plate (10) seals the U-shaped flue, support legs are arranged at the bottom end of the sealing base plate (10), a U-shaped partition plate (6) is further arranged in the U-shaped flue, the U-shaped flue is divided into a first waste heat flue (7) and a second waste heat flue (8) by the partition plate (6), a flue gas circulation hole (15) is arranged at the two end positions of the bottom of the partition plate (6) in an even level manner, a flue gas inlet channel (11) and a flue gas outlet channel (12) are arranged at the top end of the waste heat cover (5), one end of the smoke inlet pipeline (11) is connected with the smoke pipeline (3), the other end of the smoke inlet pipeline (11) is communicated with the first waste heat flue (7), the second waste heat flue (8) is communicated with the smoke outlet pipeline (12), a drain pipe (13) is further installed at the bottom end of the waste heat cover (5), and a water valve is installed on the drain pipe (13).

2. The flue gas waste heat utilization equipment of praseodymium-neodymium rare earth calcining kiln of claim 1, characterized in that: a cleaning pipeline (14) is arranged on the waste heat cover (5), and a valve is arranged on the cleaning pipeline (14).