CN1042409A - Vertical fluidized kilm - Google Patents
Vertical fluidized kilm Download PDFInfo
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- CN1042409A CN1042409A CN 88107617 CN88107617A CN1042409A CN 1042409 A CN1042409 A CN 1042409A CN 88107617 CN88107617 CN 88107617 CN 88107617 A CN88107617 A CN 88107617A CN 1042409 A CN1042409 A CN 1042409A
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- kiln
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- kiln owner
- air chamber
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Abstract
The present invention is a kind of kiln of suspend fluidized calcining cement, and it is made up of kiln owner's body, kiln hood, sandbox, feeding device, chimney, lock wind band, air compartment, broken loose device, dipleg, disk feeder etc.Have the advantages that volume is little, efficient is high, leave standstill.
Description
The invention belongs to the burning clinker of cement device, specifically it is a kind of kiln of suspend fluidized calcining cement.
The equipment that the burning clinker is two types commonly used, a kind of is rotary kiln, a kind of is shaft kiln.Rotary kiln material constantly rolls in sintering process, is heated evenly, and the clinker label is higher, and quality is all neat.But the rotary structure complexity, heat transfer area is little, and the thermal efficiency is low, and is strict to fuel mass, and the kiln footpath can not be too little, and output can not be too low, and small cement plant can't utilize, and founds the factory for big-and-middle-sized cement plant and also bring difficulty.Shaft kiln since its small investment, hear rate low, can make full use of advantage such as colm, developed rapidly in recent years, and various improved novel shaft kilns occurred, the cement quality of being produced is become better and better.
" cement " magazine that Technology Information Inst. of State Construction Material Industry Bureau sponsors was introduced a kind of mechanical vertical kiln of Xinjian Machine Plant,Shanghai's development in 1986 the tenth on the first phase, it has a drum shape kiln body, its top is a horn-like opening, device for discharging is arranged at kiln body bottom, dipleg and central air hose etc., one kiln hood is arranged at kiln body top, is equipped with feeding device etc. on it, and a rotoclone collector and a chimney are arranged on kiln hood.The design of this shaft kiln is more reasonable, and its every production and technical indication has has all met or exceeded the advanced level of existing shaft kiln, but also the same with other shaft kiln common weakness is arranged, both in actual production, it is irregular to be easy to generate ventilation, and problems such as poor heat stability make clinker quality can not get ensureing.
One of purpose of the present invention provides the suspend fluidized method for calcinating of a kind of employing, the calcining advantage of comprehensive shaft kiln and rotary kiln, clinker is burnt till, to overcome existing little, the not high and unsettled weakness of cement quality of shaft kiln output boiling the rising of shaft kiln turning in; Two of purpose of the present invention provides the improvement to the shaft kiln ventilating system, and to overcome the irregular problem of vertical kiln ventilation, three of purpose of the present invention provides a kind of discharge system, to adapt to the discharging characteristics of vertical fluidized kilm.
The present invention reaches its purpose by following structure.Vertical fluidized kilm has a drum shape kiln owner body, and its top is a horn-like opening, and there is a kiln hood opening top, and there is a chimney kiln hood top, also has a feeding device on kiln hood, in the bottom of kiln owner's body one discharge system is arranged, and a sandbox is arranged in kiln hood in addition.In actual production, the grog that burns till with cooling is a base plate like this, and sandbox is a top board, and horn mouth and kiln hood etc. just can constitute a suspend fluidized device on kiln owner's body.
Sandbox is that a circle is box-like, and it is made up of baffle plate up and down, and the aperture that gathers on each baffle plate is adorned sand in the casing.Baffle plate can adopt sheet metal boring form, also can adopt the metal net device that is fixed on the support etc., and hole diameter does not spill to suitable with interior dress sand.The sand of adorning can adopt resistant to elevated temperatures sands such as quartz sand.In order to make operation safe, whole sandbox is placed on the step of kiln hood internal upper part, only cover bottom in the kiln hood with own wt, when kiln inner pressure is too high, whole sandbox can upwards rise under the effect of pressure, shed kiln inner pressure, when normal furnace pressure, gas enters chimney by sandbox in the kiln.
Kiln hood is a drum shape, in order to overhaul convenient and to help operational observations, on the kiln hood inspection manhole and peep hole can be arranged.Overheated for preventing kiln hood, be an interlayer in the kiln hood bottom, and water inlet pipe and water outlet pipe is arranged, water can be cooled by interlayer.
Kiln owner's body is the kiln body of general shaft kiln, produce the irregular problem of ventilating in order to overcome wall effect, can be equipped with a joint or more piece diameter lock wind band in the interposition of kiln owner's body greater than kiln owner's body diameter, the top of each lock wind band becomes an oblique angle to connect with kiln owner's body, formation one is horn-like.When clinker dropped to lock wind band, because kiln body diameter becomes big, grog was loosened; Like this, when limit wind rose to lock wind band, loose clinker stoped limit wind to continue directly to rise, and has increased the resistance of limit portion; In lock wind band,,, consequently weaken limit wind and strengthen apoplexy limit wind guiding kiln body middle part owing to the effect at oblique angle.
Air-blast device can adopt shaft kiln devices such as central air hose commonly used.In order further to strengthen apoplexy, lower peripheral at kiln owner's body has a circular air chamber around kiln owner's body, the air intake vent of air chamber is positioned on the air chamber annulus tangent line, has many blowers to communicate with kiln owner's body in the air chamber, and blower and kiln owner's body crosscut horizontal plane are upturned and form an angle.Like this, the wind that air blast comes out enters air chamber from the air intake vent tangential direction of air chamber, and at a high speed rotation in air chamber, then by the blower directive kiln heart of keeping watch; Its result has not only strengthened apoplexy, and forms negative pressuren zone in the discharge port lower end, and inwardly air draught strengthens the discharging sealing effectiveness.In the ordinary course of things, have 6 to be evenly distributed on kiln owner's body blower on every side, blower and kiln owner's body crosscut horizontal plane are upturned and form one 45 degree angles, just can obtain satisfied effect.
Discharge system adopts tower comb rotary discharger and vertical dipleg or other shaft kiln discharging device.The present invention also can adopt reciprocal mutual-inserting type discharge system, and it is made up of loosening device, dipleg, discharger three parts.Loosening device is positioned at kiln owner's body bottom, it has two parallel leading screws, and can carry out the positive and negative rotation of periodicity by turbine worm device drive, and leading screw drives two parallel slide blocks, slide block drives two subbands has the broken rod of tooth shape of tip and crosshead to carry out reciprocal relative motion, with loosening grog.Do not tie bulk because of the vertical fluidized kilm grog, granularity is little, and the major function of loosening device is the grog layer to be colluded draw looseningly, is the smooth discharging work of preparing.Dipleg is positioned under the loosening device and kiln owner's body bottom, and it is a conical hopper shape.Because under the effect of loosening device, pile with grog in the dipleg all the time, strengthened the effect of material envelope, and need not to install any material level control instrument device.Discharger is positioned at the below of dipleg, and it can be a disk feeder or electro-vibrating feeder.
Chimney adopts neutral single chimney.In order to prevent under the harsh climate condition, to produce the phenomenon of cigarette, a smoke stack head can be installed on chimney.Smoke stack head also is anti-blast cap, it be a bottom for circle package body, top for circle shell stage body and be sleeved on device on the smoke stack head, form the annular blast cap of a similar fish gill.The air-flow back of coming out in manage keeps the original form of stream strand in certain zone like this, and keeps certain speed, and formation is to the strong antagonism of atmospheric pressure, overcomes chimney and falls the phenomenon of cigarette.
Feeding device is positioned at kiln hood top.Raw material are to contain coal-fired pulverulent mixture.
Accompanying drawing has provided a specific embodiment of the present invention.
The present invention combines suspend fluidized calcination method and shaft kiln, and safe and reliable sandbox is set makes top board, and the strong point of existing rotary kiln rolling calcining has again the shaft kiln volume little, and the advantage of grade simple in structure has the characteristics such as thermal efficiency height, calcining are rapid; The present invention adopts the measures such as lock wind band, rotary blasting to strengthen apoplexy, has overcome the irregular problem of ventilation that shaft kiln produces owing to wall effect, and has had the upwards ability of air draught, has alleviated the load of material envelope system; The present invention also adopts reciprocal mutual-inserting type loosening device, not only has well loosening bed of material effect, and also have stronger breaking capacity, and belong to again the internal force transmission, in light weight, cost is low, a fixed gap is not left in the upper end because loosening device does not need dipleg, and variation has taken place material envelope mechanism, so whole dipleg all is full of grog, strengthen the effect of envelope wind, saved the material level control instrument device. Total has reached purpose of the present invention, has the advantages that volume is little, efficient is high, leave standstill.
Claims (9)
1, a kind of vertical fluidized kilm of being made up of kiln owner's body, kiln hood, feeding device, air-blast device, discharge system, chimney, feature of the present invention is on kiln hood top one sandbox to be arranged, and makes horn mouth and kiln hood on kiln owner's body, sandbox form a suspend fluidized device.
2, according to the described vertical fluidized kilm of claim 1, it is characterized in that sandbox is that a circle is box-like, it is made up of baffle plate up and down, and the aperture that gathers on each baffle plate is adorned sand in the casing.
3, according to claim 1 or 2 described vertical fluidized kilms, it is characterized in that interposition at kiln owner's body is equipped with a joint or the more piece diameter lock wind band greater than kiln owner's body diameter, top of each lock wind band becomes an oblique angle to connect with kiln owner's body, make formation one horn-like.
4, according to claim 1 or 2 described vertical fluidized kilms, it is characterized in that around kiln owner's body one circular air chamber being arranged in the lower peripheral of kiln owner's body, the air intake vent of air chamber is positioned on the air chamber annulus tangent line, have many blowers to communicate with kiln owner's body in the air chamber, blower and kiln owner's body crosscut horizontal plane are upturned and form an angle.
5, according to the described vertical fluidized kilm of claim 3, it is characterized in that around kiln owner's body one circular air chamber being arranged in the lower peripheral of kiln owner's body, the air intake vent of air chamber is positioned on the air chamber annulus tangent line, have many blowers to communicate with kiln owner's body in the air chamber, blower and kiln owner's body crosscut horizontal plane are upturned and form an angle.
6, according to claim 1 or 2 described vertical fluidized kilms, it is characterized in that having in the discharge system broken loose device, be positioned at kiln owner's body bottom, it has two parallel leading screws, and drive by a turbine worm device and can carry out the positive and negative rotation of periodicity, leading screw drives two parallel slide blocks, and slide block drives two subbands has the broken rod of tooth shape of tip and crosshead to carry out reciprocal relative motion.
7, according to the described vertical fluidized kilm of claim 3, it is characterized in that having in the discharge system broken loose device, be positioned at kiln owner's body bottom, it has two parallel leading screws, and drive by a turbine worm device and can carry out the positive and negative rotation of periodicity, leading screw drives two parallel slide blocks, and slide block drives two subbands has the broken rod of tooth shape of tip and crosshead to carry out reciprocal relative motion.
8, according to the described vertical fluidized kilm of claim 4, it is characterized in that having in the discharge system broken loose device, be positioned at kiln owner's body bottom, it has two parallel leading screws, and drive by a turbine worm device and can carry out the positive and negative rotation of periodicity, leading screw drives two parallel slide blocks, and slide block drives two subbands has the broken rod of tooth shape of tip and crosshead to carry out reciprocal relative motion.
9, according to the described vertical fluidized kilm of claim 5, it is characterized in that having in the discharge system broken loose device, be positioned at kiln owner's body bottom, it has two parallel leading screws, and drive by a turbine worm device and can carry out the positive and negative rotation of periodicity, leading screw drives two parallel slide blocks, and slide block drives two subbands has the broken rod of tooth shape of tip and crosshead to carry out reciprocal relative motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107617 CN1042409A (en) | 1988-11-03 | 1988-11-03 | Vertical fluidized kilm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107617 CN1042409A (en) | 1988-11-03 | 1988-11-03 | Vertical fluidized kilm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1042409A true CN1042409A (en) | 1990-05-23 |
Family
ID=4834706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88107617 Pending CN1042409A (en) | 1988-11-03 | 1988-11-03 | Vertical fluidized kilm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954239A (en) * | 2011-08-24 | 2013-03-06 | Ikn有限公司 | Clinker kiln with slider for tertiary air duct |
-
1988
- 1988-11-03 CN CN 88107617 patent/CN1042409A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954239A (en) * | 2011-08-24 | 2013-03-06 | Ikn有限公司 | Clinker kiln with slider for tertiary air duct |
| US9121639B2 (en) | 2011-08-24 | 2015-09-01 | Ikn Gmbh Ingenieurburo-Kuhlerbau-Neustadt | Clinker kiln with slider for tertiary air duct |
| CN102954239B (en) * | 2011-08-24 | 2016-01-06 | Ikn有限公司 | With the chamotte kiln of the slide block for tertiary-air pipe |
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |