CN219045900U

CN219045900U - Lime calcining kiln

Info

Publication number: CN219045900U
Application number: CN202223331857.0U
Authority: CN
Inventors: 曹小多; 莫善吹; 廖明国; 张玉寨; 李铭
Original assignee: Wuxuan Yide Mining Co ltd
Current assignee: Wuxuan Yide Mining Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-19
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a lime calcining kiln which comprises a base, a kiln body, a kiln tail cover, a kiln head cover and a crushing hopper, wherein the kiln head cover is fixed on one side of the top end of the base, the kiln tail cover is fixed on the other side of the top end of the base, the kiln body is rotatably arranged above the base, wall pipes are arranged on the inner wall of one side of the kiln body, the surfaces of the wall pipes are provided with equidistant gas transmission holes, the crushing hopper is arranged on the top end of the kiln head cover, the bottom end of the crushing hopper is provided with a discharge pipe, the bottom end of the discharge pipe extends to the inside of the kiln body, and crushing rollers are rotatably arranged in the crushing hopper. The utility model not only realizes the crushing function of the raw materials, improves the sufficiency of raw material calcination, utilizes the waste heat in the kiln to preheat the raw materials, and has the advantages of more uniform raw material preheating, no energy consumption increase, more energy saving and improved convenience of filter layer replacement.

Description

Lime calcining kiln

Technical Field

The utility model relates to the technical field of calcining kilns, in particular to a lime calcining kiln.

Background

Lime is an air hardening inorganic cementing material taking calcium oxide as a main component, the lime is formed by calcining products with high calcium carbonate content such as limestone, dolomite, chalk, shells and the like at 900-1100 ℃, the lime is not only used as a building material, but also an important raw material for a plurality of industries, the lime has the function of disinfection and sterilization, and the lime can also be used in medicine, and a calcining kiln is indispensable equipment for preparing the lime.

1. When the lime raw materials are calcined, the raw materials with uneven size are directly put into a kiln body for calcination, and the raw materials with larger volume are insufficiently calcined, so that the quality of lime is affected; 2. in the calcination process, the raw materials are usually required to be preheated frequently, and an ignition preheating mode is generally adopted in the preheating process, so that the preheating is not uniform enough, the energy consumption is increased, and the improvement is needed; 3. the flue gas in the calcining kiln can be discharged after being filtered and purified, and the filter layers are not cleaned for a long time and are easy to block, and the filter layers are arranged in the chimney and are inconvenient to take out and replace, so that inconvenience is caused to use.

Disclosure of Invention

The utility model aims to provide a lime calcining kiln for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lime calcining kiln, includes base, kiln body, kiln tail hood, kiln hood and broken pipe, the one side on base top is fixed to the kiln tail hood, the opposite side on base top is fixed to the kiln tail hood, the kiln body rotates the top of installing at the base, the both ends of kiln body extend respectively to the inside of kiln hood and kiln tail hood and rather than swing joint, all install the some firearm on the inner wall of kiln body, first rotary driving piece is all installed on the top of base, just the driving gear is installed to the output of first rotary driving piece, be fixed with the gear circle on the kiln body outer wall of driving gear position department, gear circle and driving gear intermesh, all install the wall pipe on the inner wall of kiln body one side, the wall pipe intercommunication each other, just the surface of wall pipe all is provided with equidistant hole, the top at the kiln hood is installed to the broken pipe, just the bottom of broken pipe is installed to the bottom of arranging the material pipe extends to the inside of kiln body, the inside of broken roller is installed to the inside rotation of broken, and the first rotary driving piece is installed to the bottom of broken pipe, and the second rotary driving piece is installed to the exhaust stack, and the top of a filter tube is installed to the inside of a stack, and the top is connected to the first stack, and the top is installed to the stack.

Preferably, the inner wall of the kiln body is fixed with equidistant partition plates, and round holes are formed in the partition plates, so that the movement rate of raw materials is slowed down, the stay time of the raw materials in the kiln body is prolonged, and the sufficiency of calcination is ensured.

Preferably, an air pump is arranged at the top end of the base below the kiln body, the input end of the air pump is communicated with the kiln body, and the output end of the air pump is communicated with the wall pipe, so that waste heat air in the kiln body is conveniently conveyed into the wall pipe.

Preferably, the kiln body is arranged in a slightly inclined mode with left low and right high integrally so that raw materials move to one side in the kiln body.

Preferably, the inner walls of the smoke discharging cylinders below the first filter layer and the second filter layer are respectively fixed with a supporting table, so that the first filter layer and the second filter layer can be supported and positioned conveniently.

Preferably, sealing doors are arranged on the outer walls of the smoke discharging barrels at the positions of the first filter layer and the second filter layer, so that the first filter layer and the second filter layer can be conveniently taken out and replaced.

Compared with the prior art, the utility model has the beneficial effects that: the lime calcining kiln not only realizes the crushing function of raw materials and improves the sufficiency of raw material calcination, but also utilizes the waste heat in the kiln to preheat the raw materials, so that the raw materials are more uniformly preheated, the energy consumption is not increased, the energy is saved, and the convenience of filter layer replacement is improved;

(1) The crushing hopper, the discharging pipe, the crushing roller and the second rotary driving piece are arranged, raw materials are poured into the crushing hopper, the crushing roller is driven to rotate by the second rotary driving piece, the raw materials with larger volume are crushed into small blocks under the extrusion action of the crushing roller and the inner wall of the crushing hopper, and the crushed raw materials fall into the kiln body through the discharging pipe;

(2) The kiln has the advantages that the exhaust pump, the wall pipe and the gas transmission holes are arranged, the exhaust pump is used for exhausting calcined hot air in the kiln body and conveying the calcined hot air into the wall pipe, the hot air is discharged through the gas transmission holes to preheat raw materials, and the raw materials are preheated more uniformly due to the uniform distribution of the gas transmission holes;

(3) Through being provided with chimney, sealing door, brace table, open sealing door, take out from the surface of brace table with first filtering layer and second filtering layer, can take out it in the chimney, the renew can again to the convenience that the filtering layer was changed has been improved.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic view of the structure of the crushing hopper of the present utility model;

FIG. 3 is a schematic view of a smoke exhaust barrel according to the present utility model;

fig. 4 is a schematic side view of the divider plate of the present utility model.

In the figure: 1. a base; 2. a kiln body; 3. an air extracting pump; 4. a first rotary drive member; 5. a drive gear; 6. a gear ring; 7. a kiln tail hood; 8. a gas pipe; 9. a smoke exhaust tube; 10. sealing the door; 11. an igniter; 12. a partition plate; 13. a wall tube; 14. a gas delivery hole; 15. a kiln head cover; 16. a crushing hopper; 17. a discharge pipe; 18. a crushing roller; 19. a second rotary driving member; 20. a first filter layer; 21. a second filter layer; 22. a support table; 23. and a round hole.

Detailed Description

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

Referring to fig. 1-4, an embodiment of the present utility model is provided: the lime calcining kiln comprises a base 1, a kiln body 2, a kiln tail hood 7, a kiln head hood 15 and a crushing hopper 16, wherein the kiln head hood 15 is fixed on one side of the top end of the base 1, and the kiln tail hood 7 is fixed on the other side of the top end of the base 1;

the kiln body 2 is rotatably arranged above the base 1, and two ends of the kiln body 2 extend into the kiln head cover 15 and the kiln tail cover 7 respectively and are movably connected with the kiln head cover 15 and the kiln tail cover 7;

the kiln body 2 is arranged in a slightly inclined way with left low and right high so that raw materials move to one side in the kiln body 2;

the inner walls of the kiln body 2 are provided with igniters 11;

the inner walls of the kiln body 2 are fixed with equally-spaced partition plates 12, and round holes 23 are formed in the partition plates 12, so that the movement rate of raw materials is slowed down, the stay time of the raw materials in the kiln body 2 is prolonged, and the sufficiency of calcination is ensured;

the top end of the base 1 is provided with a first rotary driving piece 4, the output end of the first rotary driving piece 4 is provided with a driving gear 5, the outer wall of the kiln body 2 at the position of the driving gear 5 is fixedly provided with a gear ring 6, and the gear ring 6 is meshed with the driving gear 5;

wall pipes 13 are arranged on the inner wall of one side of the kiln body 2, the wall pipes 13 are communicated with each other, and the surfaces of the wall pipes 13 are provided with equidistant air transmission holes 14;

the top end of the base 1 below the kiln body 2 is provided with an air pump 3, the input end of the air pump 3 is communicated with the kiln body 2, and the output end of the air pump 3 is communicated with the wall pipe 13, so that waste heat air in the kiln body 2 is conveniently conveyed into the wall pipe 13;

the crushing hopper 16 is arranged at the top end of the kiln head cover 15, the bottom end of the crushing hopper 16 is provided with a discharge pipe 17, and the bottom end of the discharge pipe 17 extends to the interior of the kiln body 2;

the crushing roller 18 is rotatably arranged in the crushing hopper 16, a second rotary driving piece 19 is arranged at the bottom of the crushing hopper 16, and the output end of the second rotary driving piece 19 is fixedly connected with the crushing roller 18;

a gas pipe 8 is arranged at the top of the kiln tail cover 7, and one end of the gas pipe 8 extends to the interior of the kiln body 2;

a smoke discharging tube 9 is arranged at the top end of the kiln tail cover 7, the smoke discharging tube 9 is communicated with the kiln tail cover 7, and a first filter layer 20 and a second filter layer 21 are respectively arranged in the smoke discharging tube 9;

the inner walls of the smoke discharging cylinder 9 below the first filter layer 20 and the second filter layer 21 are fixed with supporting tables 22, so that the first filter layer 20 and the second filter layer 21 can be supported and positioned conveniently;

the sealing doors 10 are arranged on the outer walls of the smoke discharging barrels 9 at the positions of the first filter layer 20 and the second filter layer 21, so that the first filter layer 20 and the second filter layer 21 can be conveniently taken out and replaced.

When the embodiment of the application is used, the following steps are adopted: firstly, raw materials are poured into a crushing hopper 16, at the moment, a second rotary driving piece 19 drives a crushing roller 18 to rotate, so that raw materials with larger volume are crushed into small blocks under the extrusion action of the crushing roller 18 and the inner wall of the crushing hopper 16, the crushed raw materials fall into a kiln body 2 through a discharge pipe 17, the crushing function of the raw materials is realized, the calcining sufficiency of the raw materials is improved, the quality of lime is ensured, then, a first rotary driving piece 4 drives the kiln body 2 to rotate through a driving gear 5 and a gear ring 6, the raw materials move to one side in the kiln body 2 due to the inclined structure of the kiln body 2, at the moment, a sucking pump 3 sucks calcined hot air in the kiln body 2 and conveys the calcined hot air into a wall pipe 13, the hot air is discharged through a gas conveying hole 14, the raw materials are preheated more uniformly due to uniform distribution of the gas conveying hole 14, the method utilizes waste heat in the kiln without increasing energy consumption, is more energy-saving, then, the gas pipe 8 introduces gas into the kiln body 2, the igniter 11 ignites the raw materials, the raw materials sequentially pass through round holes 23 in the partition plate 12 in the moving process of the raw materials, the movement rate of the raw materials is slowed down by the arrangement of the partition plate 12, the stay time of the raw materials in the kiln body 2 is prolonged, the calcining sufficiency is ensured, the calcined raw materials are discharged through a discharge hole in the kiln tail cover 7, flue gas generated by calcining enters the smoke discharging cylinder 9 and is discharged after being filtered and purified by the first filter layer 20 and the second filter layer 21, wherein the sealing door 10 can be opened, the first filter layer 20 and the second filter layer 21 can be pulled away from the surface of the supporting table 22, and the raw materials can be taken out for replacement, thereby improving the convenience of filter layer replacement, and (5) completing the work of the lime calcining kiln.

Claims

1. The lime calcining kiln is characterized by comprising a base (1), a kiln body (2), a kiln tail cover (7), a kiln head cover (15) and a crushing hopper (16), wherein the kiln head cover (15) is fixed on one side of the top end of the base (1), the kiln tail cover (7) is fixed on the other side of the top end of the base (1), the kiln body (2) is rotatably arranged above the base (1), two ends of the kiln body (2) respectively extend to the interiors of the kiln head cover (15) and the kiln tail cover (7) and are movably connected with the interiors of the kiln head cover (15) and the kiln tail cover (7), an igniter (11) is arranged on the inner wall of the kiln body (2), a first rotary driving part (4) is arranged on the top end of the base (1), the output end of the first rotary driving piece (4) is provided with a driving gear (5), a gear ring (6) is fixed on the outer wall of the kiln body (2) at the position of the driving gear (5), the gear ring (6) is meshed with the driving gear (5), a wall pipe (13) is arranged on the inner wall of one side of the kiln body (2), the wall pipes (13) are mutually communicated, the surfaces of the wall pipes (13) are provided with equidistant gas transmission holes (14), a crushing bucket (16) is arranged at the top end of the kiln head cover (15), a discharging pipe (17) is arranged at the bottom end of the crushing bucket (16), the bottom of arranging material pipe (17) extends to the inside of kiln body (2), crushing roller (18) are installed in the inside rotation of crushing pipe (16), just second rotary drive spare (19) are installed to the bottom of crushing pipe (16), and the output and the crushing roller (18) fixed connection of second rotary drive spare (19), gas pipe (8) are installed at the top of kiln tail cover (7), and the inside of kiln body (2) is extended to the one end of gas pipe (8), chimney (9) are installed on the top of kiln tail cover (7), and chimney (9) and kiln tail cover (7) intercommunication, just the inside of chimney (9) is provided with first filter layer (20) and second filter layer (21) respectively.

2. A lime calcination kiln according to claim 1, characterized in that: the inner walls of the kiln bodies (2) are fixed with equally-spaced partition plates (12), and round holes (23) are formed in the partition plates (12).

3. A lime calcination kiln according to claim 1, characterized in that: the air pump (3) is installed on the top end of the base (1) below the kiln body (2), the input end of the air pump (3) is communicated with the kiln body (2), and the output end of the air pump (3) is communicated with the wall pipe (13).

4. A lime calcination kiln according to claim 1, characterized in that: the kiln body (2) is integrally arranged in a slight inclination mode with low left and high right.

5. A lime calcination kiln according to claim 1, characterized in that: a supporting table (22) is fixed on the inner wall of the smoke discharging barrel (9) below the first filter layer (20) and the second filter layer (21).

6. A lime calcination kiln according to claim 1, characterized in that: sealing doors (10) are arranged on the outer walls of the smoke discharging barrels (9) at the positions of the first filter layer (20) and the second filter layer (21).