CN201463516U

CN201463516U - Split-type waste heat utilization rotary calcining kiln

Info

Publication number: CN201463516U
Application number: CN2009201044105U
Authority: CN
Inventors: 王敬鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-27
Filing date: 2009-08-27
Publication date: 2010-05-12
Anticipated expiration: 2019-08-27

Abstract

The utility model relates to a kiln, in particular to a split-type waste heat utilization rotary calcining kiln which solves the problems that the calcining zone liner of the rotary kiln in prior art is easy to form clicker rings, and results in reducing the utilization rate, productivity and time and labor consuming, and waste energy source, and comprises a kiln body composed of a pre-heating zone, a calcining zone and a discharge zone, and three bases, bearing blocks are mounted on the bases, a roller belt is fixed on the outer wall of the kiln body, a main gear belt is arranged on the outer wall of the kiln body, both ends of the calcining zone are in movable and sealed connection with the pre-heating zone and the discharge zone, an additional base and an additional bearing block are additionally arranged under the calcining zone, and an additional roller belt is fixed on both ends of the calcining zone; the rotary kiln also comprises a spare calcining zone with the same length and structure of the main calcining zone and arranged by side of the main calcining zone, the spare calcining zone is erected on the additional base, a wide main gear belt is arranged on the outer wall of the main calcining zone, and a driven gear belt is arranged on the outer wall of the spare calcining zone. The split-type waste heat utilization rotary calcining kiln has simple operation, shortens the kiln downtime, realizes uninterrupted production, improves the productivity and meets the national energy saving and emission reduction requirements.

Description

Split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner

Technical field

The utility model relates to a kind of kiln, is specially a kind of split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner.

Background technology

The a large amount of uses of calcining mineral is rotary kiln at present; the calcining of tradition rotary kiln has stable, a firm kliner coating; because it can protect refractory lining; reduce heat loss by the kiln body; the stable kliner coating of several cm thicks can not only make the wadding life-span prolong nearly 100%; and can also make kiln body temperature degree reduce several Baidu, this means and reduce heat loss up to 25%.But owing to many reasons, relatively poor such as ature of coal, ash and fugitive constituent are more, often cause the blocked up kliner coating of the local appearance of burning zone, people are referred to as it " ring formation ", it can hinder the operation of kiln considerably, the possibility that the existence of kiln body is burnt, the most serious is the cross section that it has strengthened the kiln body, thereby hindered the steady flow of going into kiln material and fuel gas, in case the kliner coating ring formation it just can not come off voluntarily, in order to handle their kilns of just having to periodically stop, rely on and manually repair, kiln body utilization rate is reduced greatly, and the production of this discontinuity has also greatly restricted the lifting of output, and wastes time and energy.For this reason, people prevent or handle always the method for the kliner coating ring formation that hinders operation in investigation, but effect is not very desirable.In addition, the heat waste that existing rotary kiln produces in calcination process is very big, and especially the heat that produced of burning zone cylindrical shell dissipates in vain, does not meet the requirement of national energy-saving and emission-reduction.

Summary of the invention

The utility model need regularly stop kiln and carry out manual amendment in order to solve the existing easy ring formation of calcined by rotary kiln band liner, has problems such as kiln body utilization rate reduces greatly, wastes time and energy and wastes energy, and a kind of split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner is provided.

The utility model is to adopt following technical scheme to realize: split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner, comprise by the preheating zone, main burning zone and go out the kiln body that strip constitutes and be used to support the kiln body, and before being arranged on the kiln body, in, the kiln hood base at rear portion, base and kiln tail base in the kiln, be separately installed with bearing block on three bases, before the external wall of kiln, in, the rear portion is fixed with the roller strap that is supported on the bearing block, the external wall postmedian of kiln is provided with the master gear band by driving device controls, innovative point of the present utility model is to constitute the preheating zone of kiln body, main burning zone is a split-type structural with going out strip, main burning zone two ends respectively with the preheating zone, go out to adopt between the strip movable sealing to connect, additional base is set up at two ends, main burning zone below, on the additional base additional shaft bearing is installed, main burning zone two ends outer wall is fixed with the additional roller strap that is supported on the additional shaft bearing.Above-mentioned burning zone and preheating zone, the movable sealing type of attachment that goes out between the strip are that those of ordinary skill in the art is easy to realize.The length of described burning zone can be determined according to the kind of calcining mineral and the factors such as entire length of kiln body.

In order further to optimize the structure of this rotary kiln, reach the requirement of energy-saving and emission-reduction, reduce the production run cost, this rotary calciner also comprises consistent with main burning zone length, the standby burning zone of structure unanimity, standby burning zone passes through bearing block, the spare roll tape holder is located on the additional base, standby burning zone and main burning zone are set up in parallel, main burning zone outer wall is provided with wide cut master gear band, standby burning zone outer wall is provided with and the intermeshing wide cut driven gear of wide cut master gear band band, the utility model is set up the standby burning zone that is set up in parallel with main burning zone setting up on the additional base of main burning zone, and the wide cut master gear band that utilizes main burning zone outer wall drives the wide cut driven gear band counter-rotation with its engagement, then driving standby burning zone rotates, like this, the heat that main burning zone produces in process of production can fully be absorbed by standby burning zone, reach the purpose of preheating, when main burning zone liner produces blocked up kliner coating and when need changing, can replace by directly that preheating is good standby burning zone, not only shortened and stopped the kiln time, and standby calcining kiln does not need to carry out separately special preheating, also having shortened the temperature adaptation time of standby burning zone and whole kiln body. described wide cut driven gear band is provided with outward by driving device controls, and with the auxiliary driving gear of its engagement. the rotating speed of the rotating speed of this auxiliary driving gear and wide cut driving gear band is consistent, and direction is opposite, can alleviate the load of wide cut driving gear band.

Described at kiln hood one end additional base and the kiln hood base between set up the balance base, the trunnion shaft bearing is installed on the balance base, and the external wall of the kiln corresponding with the trunnion shaft bearing is fixed with the balance roller strap, like this, after burning zone is removed, can guarantee to be positioned at kiln hood to go out strip firm; Balance gear band by driving device controls is set on the balance base, this balance gear band is all consistent with the rotating speed and the direction of master gear band, can alleviate the load of master gear band and drive unit thereof, also alleviate the load of junctions, burning zone two ends greatly, guarantee the burning zone stability of rotation.

Compared with prior art, the utility model will very easily produce the burning zone and the preheating zone of blocked up kliner coating, going out strip makes split type, when the burning zone liner produces blocked up kliner coating, can be after stopping kiln, burning zone is pulled down, change standby burning zone then in a short period of time, standby burning zone is set up in parallel in main burning zone one side simultaneously, by wide cut driving gear band, being meshing with each other of wide cut driven gear band, realize the synchronous operation of main burning zone and standby burning zone, the heat that distributes in the main burning zone production process is fully conducted to standby burning zone, reach the real-time preheating of standby burning zone, and main burning zone and preheating zone, go out to connect between the strip reliably, simple to operate, can shorten greatly and stop the kiln time, the basic nothing that realizes is intermittently produced, and has improved production efficiency greatly, guarantee the optimal operational condition of rotary kiln " efficient; high-quality; low consumption ", have certain popularization value and use value.

Description of drawings

Fig. 1 is main burning zone described in the utility model and standby burning zone structural representation arranged side by side

Fig. 2 is the syndeton schematic diagram of main burning zone described in the utility model and kiln body

Among the figure: the 1-preheating zone; 2-master's burning zone; 3-goes out strip; 4-kiln hood base; Base in the 5-kiln; 6-kiln tail base; The 7-bearing block; The 8-roller strap; 9-master gear band; 10-adds base; 11-additional shaft bearing; 12-adds roller strap; The standby burning zone of 13-; The standby roller strap of 14-; 15-wide cut driving gear band; 16-wide cut driven gear; 17-balance base; 18-trunnion shaft bearing; 19-balance roller strap; 20-balance gear band; 21-assists driving gear; The 22-connector.

The specific embodiment

Split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner, as shown in Figure 1, comprise by preheating zone 1, main burning zone 2 and go out the kiln body that strip 3 constitutes and be used to support the kiln body, and before being arranged on the kiln body, in, the kiln hood base 4 at rear portion, base 5 and kiln tail base 6 in the kiln, be separately installed with bearing block 7 on three bases, before the external wall of kiln, in, the rear portion is fixed with the roller strap 8 that is supported on the bearing block 7, the external wall postmedian of kiln is provided with the master gear band 9 by driving device controls, constitute the preheating zone 1 of kiln body, main burning zone 2 is a split-type structural with going out strip 3, main burning zone 2 two ends respectively with preheating zone 1, go out to adopt between the strip 3 movable sealing to connect, the connector 22 that is adopted can utilize existing multiple mechanical structure form to realize, additional base 10 is set up at two ends, main burning zone 2 below, on the additional base 10 additional shaft bearing 11 is installed, main burning zone 2 two ends outer walls are fixed with the additional roller strap 12 that is supported on the additional shaft bearing 11.Set up balance base 17 between the additional base 10 of kiln hood one end and kiln hood base 4, trunnion shaft bearing 18 is installed on the balance base 17, the kiln external wall corresponding with trunnion shaft bearing 18 is fixed with balance roller strap 19.Balance gear band 20 by driving device controls is set on the balance base 17.Above-mentioned drive unit can be made of buncher, reduction box etc. at least, rotates to drive master gear band or balance gear band, realizes the stable revolution of whole kiln body then.

As shown in Figure 2, this rotary calciner also comprises standby burning zone 13 consistent with main burning zone 2 length, the structure unanimity, standby burning zone 13 is erected on the additional base 10 by bearing block, standby roller strap 14, standby burning zone 13 is set up in parallel with main burning zone 2, main burning zone 2 outer walls are provided with the moving master gear band 15 of wide cut, standby burning zone 13 outer walls are provided with and wide cut driving gear band 15 intermeshing wide cut driven gear bands 16, wide cut driven gear band 16 is outer be provided with by driving device controls and with the auxiliary driving gear 21 of its engagement.

Claims

1. split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner, comprise by preheating zone (1), main burning zone (2) and go out the kiln body that strip (3) constitutes and be used to support the kiln body, and before being arranged on the kiln body, in, the kiln hood base (4) at rear portion, base in the kiln (5) and kiln tail base (6), be separately installed with bearing block (7) on three bases, before the external wall of kiln, in, the rear portion is fixed with the roller strap (8) that is supported on the bearing block (7), the external wall postmedian of kiln is provided with the master gear band (9) by driving device controls, it is characterized in that constituting the preheating zone (1) of kiln body, main burning zone (2) and to go out strip (3) be split-type structural, main burning zone (2) two ends respectively with preheating zone (1), go out to adopt between the strip (3) movable sealing to connect, additional base (10) is set up at two ends, main burning zone (2) below, on the additional base (10) additional shaft bearing (11) is installed, main burning zone (2) two ends outer wall is fixed with the additional roller strap (12) that is supported on the additional shaft bearing (11).

2. split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner according to claim 1, it is characterized in that this rotary calciner also comprises standby burning zone (13) consistent with main burning zone (2) length, the structure unanimity, standby burning zone (13) is erected on the additional base (10) by bearing block, standby roller strap (14), standby burning zone (13) is set up in parallel with main burning zone (2), main burning zone (2) outer wall is provided with wide cut driving gear band (15), and standby burning zone (13) outer wall is provided with and wide cut driving gear band (15) intermeshing wide cut driven gear band (16).

3. split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner according to claim 1, it is characterized in that being positioned between the additional base (10) of kiln hood one end and the kiln hood base (4) and set up balance base (17), trunnion shaft bearing (18) is installed on the balance base (17), and the kiln external wall corresponding with trunnion shaft bearing (18) is fixed with balance roller strap (19).

4. split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner according to claim 3 is characterized in that balance base (17) upward is provided with the balance gear band (20) by driving device controls.

5. split type UTILIZATION OF VESIDUAL HEAT IN rotary calciner according to claim 2, it is characterized in that wide cut driven gear band (16) outer be provided with by driving device controls and with the auxiliary driving gear (21) of its engagement.