CN212538739U

CN212538739U - Rotary kiln for cement production

Info

Publication number: CN212538739U
Application number: CN202020605634.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Yi Gaoyuan
Current assignee: Changsha Hetian Baishi Building Materials Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-02-12
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a rotary kiln for cement manufacture, including rotary kiln and feed cylinder, the feed inlet welded mounting of feed cylinder has the extrusion storehouse, and the top welding in extrusion storehouse has the feeding storehouse, and the inside both sides in extrusion storehouse are all rotated and are installed the squeeze roll, and the outer wall fixed mounting of squeeze roll has a plurality of broken teeth, and the equal fixed mounting in both sides at the extrusion storehouse back has second servo motor. This rotary kiln for cement manufacture, through leading to the feed bin, the feed cylinder, first servo motor, the rotation axis, spiral material loading blade, the extrusion storehouse, the squeeze roll, the feeding storehouse, broken tooth, the circular slab, electric telescopic handle, lead to material mouth and second servo motor's cooperation and use, thereby realize before calcining the material, can extrude the breakage to the material, help avoiding solidifying the inside of bold material entering rotary kiln together and calcine, and simultaneously, the setting of broken tooth, be convenient for carry out broken dispersion to the bold material that solidifies together more, broken effect has been improved.

Description

Rotary kiln for cement production

Technical Field

The utility model relates to a cement manufacture field specifically is a rotary kiln for cement manufacture.

Background

Cement: a powdered hydraulic inorganic cementitious material. Water is added and stirred to form slurry which can be hardened in air or water and can firmly bond sand, stone and other materials together. The early lime and pozzolan mixtures are similar to modern lime and pozzolan cements, and concrete made by cementing crushed stone with them not only has higher strength after hardening, but also resists erosion by fresh water or salt-containing water. As an important cementing material, the high-performance cement is widely applied to engineering such as civil construction, water conservancy, national defense and the like for a long time. The cement rotary kiln belongs to the field of building material equipment, and is one kind of lime kiln. Belongs to building material equipment, and is one kind of lime kiln. The rotary kiln can be divided into a cement rotary kiln, a metallurgical chemical rotary kiln and a lime rotary kiln according to different materials to be treated. The rotary cement kiln is the main equipment of the cement clinker dry and wet production line.

In the use process of the rotary kiln, the cement clinker needs to be conveyed into the kiln body for heating, and in the transportation or storage process of the cement clinker, part of the cement clinker is solidified together.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary kiln for cement manufacture to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a rotary kiln for cement manufacture, includes rotary kiln and feed cylinder, the extrusion storehouse is installed in the feed inlet welding of feed cylinder, the top welding in extrusion storehouse has the feeding storehouse, the inside both sides in extrusion storehouse are all rotated and are installed the squeeze roll, the outer wall fixed mounting of squeeze roll has a plurality of broken teeth, the equal fixed mounting in both sides at the extrusion storehouse back has second servo motor, and the output of second servo motor and the drive end fixed connection of squeeze roll, the discharge end fixed mounting of feed cylinder has logical feed bin, one side fixed mounting of feed cylinder has first servo motor, first servo motor's output fixedly connected with rotation axis, the outer wall of rotation axis has cup jointed spiral material loading blade.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is used by matching the feed bin, the charging barrel, the first servo motor, the rotating shaft, the spiral feeding blade, the extrusion bin, the extrusion roller, the feeding bin, the crushing teeth, the circular plate, the electric telescopic rod, the feed opening and the second servo motor, thereby realizing that the material can be extruded and crushed before being calcined, being beneficial to preventing the large materials solidified together from entering the rotary kiln for calcination, meanwhile, the arrangement of the crushing teeth is more convenient for crushing and dispersing the large materials solidified together, the crushing effect is improved, and the materials can be extruded and dispersed again through the material inlet before passing through the material inlet, thereby ensuring the crushing effect of the large materials solidified together, the materials are more fully contacted with a heat source in the rotary kiln, the materials are more uniformly calcined, and the calcined cement clinker has good quality.

2. The utility model discloses a recovery tube, air inlet installation pipe, go out the tuber pipe, heat exchange coil, thermal-insulated section of thick bamboo, the cooperation of heating rod and air-out installation pipe is used, when the material is regional through thermal-insulated section of thick bamboo, can preheat the material, also realized retrieving the recycle to the waste heat of rotary kiln, the waste of waste heat has been avoided, energy-concerving and environment-protective, and simultaneously, the heating rod also can heat the inside of thermal-insulated section of thick bamboo, the waste heat effect to the material has been guaranteed, and the material is in continuous state of rolling inside the feed cylinder, it is more abundant even to the material waste heat, before calcining the material, improve the temperature of material earlier, avoid the temperature of material to rise violently, influence its performance, cement clinker's quality has further been improved, cement clinker high quality.

Drawings

FIG. 1 is a schematic view of a rotary kiln for cement production;

FIG. 2 is a sectional view of a barrel in a rotary kiln for cement production;

FIG. 3 is a side view of a circular plate in a rotary kiln for cement production;

fig. 4 is a rear view of an extrusion silo in a rotary kiln for cement production.

In the figure: the rotary kiln comprises a rotary kiln 1, a feed bin 2, a charging barrel 3, a first servo motor 4, a rotating shaft 5, a spiral feeding blade 6, an extrusion bin 7, an extrusion roller 8, a feeding bin 9, a crushing tooth 10, a recovery pipe 11, an air inlet installation pipe 12, a circular plate 13, an electric telescopic rod 14, an air outlet pipe 15, a heat exchange coil pipe 16, a heat insulation barrel 17, a heating rod 18, an air outlet installation pipe 19, a material through opening 20 and a second servo motor 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a rotary kiln for cement production includes a rotary kiln 1 and a charging barrel 3, a feeding port of the charging barrel 3 is welded with an extrusion chamber 7, a feeding chamber 9 is welded on a top of the extrusion chamber 7, two sides inside the extrusion chamber 7 are both rotatably installed with extrusion rollers 8, a driving end of the extrusion roller 8 penetrates through an outer wall of the extrusion chamber 7 and extends to an outside of the extrusion chamber 7, a plurality of crushing teeth 10 are fixedly installed on an outer wall of the extrusion roller 8, two sides of a back surface of the extrusion chamber 7 are both fixedly installed with a second servo motor 21, an output end of the second servo motor 21 is fixedly connected with the driving end of the extrusion roller 8, a feed-through chamber 2 is fixedly installed on a discharge end of the charging barrel 3, and a discharge end of the feed-through chamber 2 extends to the inside of the rotary kiln 1, a first servo motor 4 is fixedly installed on one side of, the rotary shaft 5 is positioned in the charging barrel 3, the outer wall of the rotary shaft 5 is sleeved with a spiral feeding blade 6, the other side of the charging barrel 3 is inserted and installed with an electric telescopic rod 14, the movable end of the electric telescopic rod 14 is fixedly connected with a circular plate 13, one side of the circular plate 13 is penetrated and provided with a plurality of feed through holes 20, the outer wall of the charging barrel 3 is sleeved with a heat insulation barrel 17, the outer wall of the charging barrel 3 and positioned in the heat insulation barrel 17 are sleeved with a heating rod 18, the air inlet end of the heating rod 18 is fixedly connected with an air inlet installation pipe 12, one end of the air inlet installation pipe 12 penetrates through the inner wall of the heat insulation barrel 17 and extends out of the heat insulation barrel 17, the air outlet end of the heating rod 18 is fixedly connected with an air outlet installation pipe 19, one end of the air outlet installation pipe 19 penetrates through the inner wall of the heat insulation barrel 17 and extends out of the heat insulation barrel 17, one side of the feed through bin, a plurality of heating rods 18 are fixedly arranged inside the heat insulation barrel 17, the air inlet installation pipe 12 is communicated with the inside of the air outlet pipe 15 through a recovery pipe 11, and an asbestos heat insulation layer is arranged on the inner wall of the heat insulation barrel 17.

The utility model discloses a theory of operation is:

when the material feeding device is used, a material is guided into the feeding bin 9 and then falls into the extrusion bin 7, meanwhile, the second servo motor 21 drives the extrusion rollers 8 to rotate, the two extrusion rollers 8 rotate, when the material passes between the two extrusion rollers 8, the two extrusion rollers 8 can extrude the material, so that the material can be extruded and crushed, the crushed material can fall into the charging barrel 3, the first servo motor 4 drives the rotating shaft 5 to rotate, the material in the charging barrel 3 moves to one side of the through bin 2 under the action of the spiral feeding blade 6, and finally enters the rotary kiln 1 through the through bin 2 to be calcined, so that the material can be extruded and crushed before being calcined, the phenomenon that the solidified large material enters the rotary kiln 1 to be calcined is facilitated, and meanwhile, the crushing teeth 10 are arranged, the method is more convenient for crushing and dispersing the large materials solidified together, improves the crushing effect, ensures the crushing effect of the large materials solidified together by double measures, ensures that the materials are more fully contacted with a heat source in the rotary kiln 1 before passing through the inside of the feed bin 2, ensures that the materials are more uniformly calcined, ensures the quality of calcined cement clinker, ensures that hot gas in the rotary kiln 1 enters the feed bin 2 and enters the heat exchange coil 16 through the air outlet pipe 15, the recovery pipe 11 and the air inlet installation pipe 12, thereby heating the inside of the heat insulation cylinder 17, can preheat the materials when the materials pass through the area of the heat insulation cylinder 17, realizes the recovery and reutilization of waste heat of the rotary kiln 1, avoids waste heat waste, is energy-saving and environment-friendly, meanwhile, the heating rod 18 can also heat the inside of the heat insulation cylinder 17, so that the waste heat effect on the materials is ensured, the materials are in a continuous rolling state in the cylinder 3, the waste heat of the materials is more sufficient and uniform, the temperature of the materials is increased before the materials are calcined, the temperature of the materials is prevented from being suddenly increased to influence the performance of the materials, the quality of cement clinker is further improved, and the quality of the cement clinker is high.

Claims

1. The utility model provides a rotary kiln for cement manufacture, includes rotary kiln (1) and feed cylinder (3), its characterized in that: the feed inlet welded mounting of feed cylinder (3) has extrusion storehouse (7), the top welding in extrusion storehouse (7) has feeding storehouse (9), the inside both sides in extrusion storehouse (7) are all rotated and are installed squeeze roll (8), the outer wall fixed mounting of squeeze roll (8) has a plurality of broken teeth (10), the equal fixed mounting in both sides at the extrusion storehouse (7) the back has second servo motor (21), and the output of second servo motor (21) and the drive end fixed connection of squeeze roll (8), the discharge end fixed mounting of feed cylinder (3) leads to feed bin (2), one side fixed mounting of feed cylinder (3) has first servo motor (4), the output fixedly connected with rotation axis (5) of first servo motor (4), spiral material loading blade (6) have been cup jointed to the outer wall of rotation axis (5).

2. The rotary kiln for cement production as set forth in claim 1, wherein: electric telescopic handle (14) are installed to the opposite side interlude of feed cylinder (3), the expansion end fixedly connected with circular slab (13) of electric telescopic handle (14), a plurality of logical material mouths (20) have been run through to one side of circular slab (13).

3. The rotary kiln for cement production as set forth in claim 1, wherein: the outer wall of feed cylinder (3) cup joints heat-insulating cylinder (17), the outer wall of feed cylinder (3) and the inside cover that is located heat-insulating cylinder (17) are equipped with heating rod (18), the air inlet end fixedly connected with air inlet installation pipe (12) of heating rod (18), the air-out end fixedly connected with air-out installation pipe (19) of heating rod (18), the one side welding that leads to feed bin (2) has air-out pipe (15), fixedly connected with recovery tube (11) between air-out pipe (15) and air inlet installation pipe (12).

4. The rotary kiln for cement production as set forth in claim 3, wherein: and a plurality of heating rods (18) are fixedly arranged in the heat insulation cylinder (17).

5. The rotary kiln for cement production as set forth in claim 3, wherein: the air inlet installation pipe (12) is communicated with the inside of the air outlet pipe (15) through a recovery pipe (11).

6. The rotary kiln for cement production as set forth in claim 3, wherein: and an asbestos heat insulation layer is arranged on the inner wall of the heat insulation cylinder (17).